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Code Issues Packages Projects Releases Wiki Activity

- Fix documentation build issues (Randy, Markus)

Browse Source 
- Fix timestamp frequency calculation for perf on CNL (Lionel)
 - New DMC firmware for Skylake (Anusha)
 - GTT flush fixes and other GGTT write track and refactors (Chris)
 - Taint kernel when GPU reset fails (Chris)
 - Display workarounds organization (Lucas)
 - GuC and HuC initialization clean-up and fixes (Michal)
 - Other fixes around GuC submission (Michal)
 - Execlist clean-ups like caching ELSP reg offset and improving log readability (Chri\
 s)
 - Many other improvements on our logs and dumps (Chris)
 - Restore GT performance in headless mode with DMC loaded (Tvrtko)
 - Stop updating legacy fb parameters since FBC is not using anymore (Daniel)
 - More selftest improvements (Chris)
 - Preemption fixes and improvements (Chris)
 - x86/early-quirks improvements for Intel graphics stolen memory. (Joonas, Matthew)
 - Other improvements on Stolen Memory code to be resource centric. (Matthew)
 - Improvements and fixes on fence allocation/release (Chris).
 
 GVT:
 
 - fixes for two coverity scan errors (Colin)
 - mmio switch code refine (Changbin)
 - more virtual display dmabuf fixes (Tina/Gustavo)
 - misc cleanups (Pei)
 - VFIO mdev display dmabuf interface and gvt support (Tina)
 - VFIO mdev opregion support/fixes (Tina/Xiong/Chris)
 - workload scheduling optimization (Changbin)
 - preemption fix and temporal workaround (Zhenyu)
 - and misc fixes after refactor (Chris)
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Merge tag 'drm-intel-next-2017-12-14' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

- Fix documentation build issues (Randy, Markus)
- Fix timestamp frequency calculation for perf on CNL (Lionel)
- New DMC firmware for Skylake (Anusha)
- GTT flush fixes and other GGTT write track and refactors (Chris)
- Taint kernel when GPU reset fails (Chris)
- Display workarounds organization (Lucas)
- GuC and HuC initialization clean-up and fixes (Michal)
- Other fixes around GuC submission (Michal)
- Execlist clean-ups like caching ELSP reg offset and improving log readability (Chri\
s)
- Many other improvements on our logs and dumps (Chris)
- Restore GT performance in headless mode with DMC loaded (Tvrtko)
- Stop updating legacy fb parameters since FBC is not using anymore (Daniel)
- More selftest improvements (Chris)
- Preemption fixes and improvements (Chris)
- x86/early-quirks improvements for Intel graphics stolen memory. (Joonas, Matthew)
- Other improvements on Stolen Memory code to be resource centric. (Matthew)
- Improvements and fixes on fence allocation/release (Chris).

GVT:

- fixes for two coverity scan errors (Colin)
- mmio switch code refine (Changbin)
- more virtual display dmabuf fixes (Tina/Gustavo)
- misc cleanups (Pei)
- VFIO mdev display dmabuf interface and gvt support (Tina)
- VFIO mdev opregion support/fixes (Tina/Xiong/Chris)
- workload scheduling optimization (Changbin)
- preemption fix and temporal workaround (Zhenyu)
- and misc fixes after refactor (Chris)

* tag 'drm-intel-next-2017-12-14' of git://anongit.freedesktop.org/drm/drm-intel: (87 commits)
  drm/i915: Update DRIVER_DATE to 20171214
  drm/i915: properly init lockdep class
  drm/i915: Show engine state when hangcheck detects a stall
  drm/i915: make CS frequency read support missing more obvious
  drm/i915/guc: Extract doorbell verification into a function
  drm/i915/guc: Extract clients allocation to submission_init
  drm/i915/guc: Extract doorbell creation from client allocation
  drm/i915/guc: Call invalidate after changing the vfunc
  drm/i915/guc: Extract guc_init from guc_init_hw
  drm/i915/guc: Move GuC workqueue allocations outside of the mutex
  drm/i915/guc: Move shared data allocation away from submission path
  drm/i915: Unwind i915_gem_init() failure
  drm/i915: Ratelimit request allocation under oom
  drm/i915: Allow fence allocations to fail
  drm/i915: Mark up potential allocation paths within i915_sw_fence as might_sleep
  drm/i915: Don't check #active_requests from i915_gem_wait_for_idle()
  drm/i915/fence: Use rcu to defer freeing of irq_work
  drm/i915: Dump the engine state before declaring wedged from wait_for_engines()
  drm/i915: Bump timeout for wait_for_engines()
  drm/i915: Downgrade misleading "Memory usable" message
  ...
This commit is contained in:
Dave Airlie 2017-12-21 11:08:30 +10:00
commit 6a9991bc05
85 changed files with 3096 additions and 1302 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
Documentation/gpu/i915.rst
View File

@ -341,10 +341,7 @@ GuC
GuC-specific firmware loader
----------------------------
.. kernel-doc:: drivers/gpu/drm/i915/intel_guc_loader.c
:doc: GuC-specific firmware loader
.. kernel-doc:: drivers/gpu/drm/i915/intel_guc_loader.c
.. kernel-doc:: drivers/gpu/drm/i915/intel_guc_fw.c
:internal:
GuC-based command submission

86
arch/x86/kernel/early-quirks.c
View File

@ -243,7 +243,7 @@ static void __init intel_remapping_check(int num, int slot, int func)
#define KB(x) ((x) * 1024UL)
#define MB(x) (KB (KB (x)))
static size_t __init i830_tseg_size(void)
static resource_size_t __init i830_tseg_size(void)
{
u8 esmramc = read_pci_config_byte(0, 0, 0, I830_ESMRAMC);
@ -256,7 +256,7 @@ static size_t __init i830_tseg_size(void)
return KB(512);
}
static size_t __init i845_tseg_size(void)
static resource_size_t __init i845_tseg_size(void)
{
u8 esmramc = read_pci_config_byte(0, 0, 0, I845_ESMRAMC);
u8 tseg_size = esmramc & I845_TSEG_SIZE_MASK;
@ -273,7 +273,7 @@ static size_t __init i845_tseg_size(void)
return 0;
}
static size_t __init i85x_tseg_size(void)
static resource_size_t __init i85x_tseg_size(void)
{
u8 esmramc = read_pci_config_byte(0, 0, 0, I85X_ESMRAMC);
@ -283,12 +283,12 @@ static size_t __init i85x_tseg_size(void)
return MB(1);
}
static size_t __init i830_mem_size(void)
static resource_size_t __init i830_mem_size(void)
{
return read_pci_config_byte(0, 0, 0, I830_DRB3) * MB(32);
}
static size_t __init i85x_mem_size(void)
static resource_size_t __init i85x_mem_size(void)
{
return read_pci_config_byte(0, 0, 1, I85X_DRB3) * MB(32);
}
@ -297,36 +297,36 @@ static size_t __init i85x_mem_size(void)
* On 830/845/85x the stolen memory base isn't available in any
* register. We need to calculate it as TOM-TSEG_SIZE-stolen_size.
*/
static phys_addr_t __init i830_stolen_base(int num, int slot, int func,
size_t stolen_size)
static resource_size_t __init i830_stolen_base(int num, int slot, int func,
resource_size_t stolen_size)
{
return (phys_addr_t)i830_mem_size() - i830_tseg_size() - stolen_size;
return i830_mem_size() - i830_tseg_size() - stolen_size;
}
static phys_addr_t __init i845_stolen_base(int num, int slot, int func,
size_t stolen_size)
static resource_size_t __init i845_stolen_base(int num, int slot, int func,
resource_size_t stolen_size)
{
return (phys_addr_t)i830_mem_size() - i845_tseg_size() - stolen_size;
return i830_mem_size() - i845_tseg_size() - stolen_size;
}
static phys_addr_t __init i85x_stolen_base(int num, int slot, int func,
size_t stolen_size)
static resource_size_t __init i85x_stolen_base(int num, int slot, int func,
resource_size_t stolen_size)
{
return (phys_addr_t)i85x_mem_size() - i85x_tseg_size() - stolen_size;
return i85x_mem_size() - i85x_tseg_size() - stolen_size;
}
static phys_addr_t __init i865_stolen_base(int num, int slot, int func,
size_t stolen_size)
static resource_size_t __init i865_stolen_base(int num, int slot, int func,
resource_size_t stolen_size)
{
u16 toud = 0;
toud = read_pci_config_16(0, 0, 0, I865_TOUD);
return (phys_addr_t)(toud << 16) + i845_tseg_size();
return toud * KB(64) + i845_tseg_size();
}
static phys_addr_t __init gen3_stolen_base(int num, int slot, int func,
size_t stolen_size)
static resource_size_t __init gen3_stolen_base(int num, int slot, int func,
resource_size_t stolen_size)
{
u32 bsm;
@ -337,10 +337,10 @@ static phys_addr_t __init gen3_stolen_base(int num, int slot, int func,
*/
bsm = read_pci_config(num, slot, func, INTEL_BSM);
return (phys_addr_t)bsm & INTEL_BSM_MASK;
return bsm & INTEL_BSM_MASK;
}
static size_t __init i830_stolen_size(int num, int slot, int func)
static resource_size_t __init i830_stolen_size(int num, int slot, int func)
{
u16 gmch_ctrl;
u16 gms;
@ -361,7 +361,7 @@ static size_t __init i830_stolen_size(int num, int slot, int func)
return 0;
}
static size_t __init gen3_stolen_size(int num, int slot, int func)
static resource_size_t __init gen3_stolen_size(int num, int slot, int func)
{
u16 gmch_ctrl;
u16 gms;
@ -390,7 +390,7 @@ static size_t __init gen3_stolen_size(int num, int slot, int func)
return 0;
}
static size_t __init gen6_stolen_size(int num, int slot, int func)
static resource_size_t __init gen6_stolen_size(int num, int slot, int func)
{
u16 gmch_ctrl;
u16 gms;
@ -398,10 +398,10 @@ static size_t __init gen6_stolen_size(int num, int slot, int func)
gmch_ctrl = read_pci_config_16(num, slot, func, SNB_GMCH_CTRL);
gms = (gmch_ctrl >> SNB_GMCH_GMS_SHIFT) & SNB_GMCH_GMS_MASK;
return (size_t)gms * MB(32);
return gms * MB(32);
}
static size_t __init gen8_stolen_size(int num, int slot, int func)
static resource_size_t __init gen8_stolen_size(int num, int slot, int func)
{
u16 gmch_ctrl;
u16 gms;
@ -409,10 +409,10 @@ static size_t __init gen8_stolen_size(int num, int slot, int func)
gmch_ctrl = read_pci_config_16(num, slot, func, SNB_GMCH_CTRL);
gms = (gmch_ctrl >> BDW_GMCH_GMS_SHIFT) & BDW_GMCH_GMS_MASK;
return (size_t)gms * MB(32);
return gms * MB(32);
}
static size_t __init chv_stolen_size(int num, int slot, int func)
static resource_size_t __init chv_stolen_size(int num, int slot, int func)
{
u16 gmch_ctrl;
u16 gms;
@ -426,14 +426,14 @@ static size_t __init chv_stolen_size(int num, int slot, int func)
* 0x17 to 0x1d: 4MB increments start at 36MB
*/
if (gms < 0x11)
return (size_t)gms * MB(32);
return gms * MB(32);
else if (gms < 0x17)
return (size_t)(gms - 0x11 + 2) * MB(4);
return (gms - 0x11) * MB(4) + MB(8);
else
return (size_t)(gms - 0x17 + 9) * MB(4);
return (gms - 0x17) * MB(4) + MB(36);
}
static size_t __init gen9_stolen_size(int num, int slot, int func)
static resource_size_t __init gen9_stolen_size(int num, int slot, int func)
{
u16 gmch_ctrl;
u16 gms;
@ -444,14 +444,15 @@ static size_t __init gen9_stolen_size(int num, int slot, int func)
/* 0x0 to 0xef: 32MB increments starting at 0MB */
/* 0xf0 to 0xfe: 4MB increments starting at 4MB */
if (gms < 0xf0)
return (size_t)gms * MB(32);
return gms * MB(32);
else
return (size_t)(gms - 0xf0 + 1) * MB(4);
return (gms - 0xf0) * MB(4) + MB(4);
}
struct intel_early_ops {
size_t (*stolen_size)(int num, int slot, int func);
phys_addr_t (*stolen_base)(int num, int slot, int func, size_t size);
resource_size_t (*stolen_size)(int num, int slot, int func);
resource_size_t (*stolen_base)(int num, int slot, int func,
resource_size_t size);
};
static const struct intel_early_ops i830_early_ops __initconst = {
@ -531,12 +532,15 @@ static const struct pci_device_id intel_early_ids[] __initconst = {
INTEL_CNL_IDS(&gen9_early_ops),
};
struct resource intel_graphics_stolen_res __ro_after_init = DEFINE_RES_MEM(0, 0);
EXPORT_SYMBOL(intel_graphics_stolen_res);
static void __init
intel_graphics_stolen(int num, int slot, int func,
const struct intel_early_ops *early_ops)
{
phys_addr_t base, end;
size_t size;
resource_size_t base, size;
resource_size_t end;
size = early_ops->stolen_size(num, slot, func);
base = early_ops->stolen_base(num, slot, func, size);
@ -545,8 +549,12 @@ intel_graphics_stolen(int num, int slot, int func,
return;
end = base + size - 1;
printk(KERN_INFO "Reserving Intel graphics memory at %pa-%pa\n",
&base, &end);
intel_graphics_stolen_res.start = base;
intel_graphics_stolen_res.end = end;
printk(KERN_INFO "Reserving Intel graphics memory at %pR\n",
&intel_graphics_stolen_res);
/* Mark this space as reserved */
e820__range_add(base, size, E820_TYPE_RESERVED);

16
drivers/char/agp/intel-gtt.c
View File

@ -80,7 +80,7 @@ static struct _intel_private {
unsigned int needs_dmar : 1;
phys_addr_t gma_bus_addr;
/* Size of memory reserved for graphics by the BIOS */
unsigned int stolen_size;
resource_size_t stolen_size;
/* Total number of gtt entries. */
unsigned int gtt_total_entries;
/* Part of the gtt that is mappable by the cpu, for those chips where
@ -333,13 +333,13 @@ static void i810_write_entry(dma_addr_t addr, unsigned int entry,
writel_relaxed(addr | pte_flags, intel_private.gtt + entry);
}
static unsigned int intel_gtt_stolen_size(void)
static resource_size_t intel_gtt_stolen_size(void)
{
u16 gmch_ctrl;
u8 rdct;
int local = 0;
static const int ddt[4] = { 0, 16, 32, 64 };
unsigned int stolen_size = 0;
resource_size_t stolen_size = 0;
if (INTEL_GTT_GEN == 1)
return 0; /* no stolen mem on i81x */
@ -417,8 +417,8 @@ static unsigned int intel_gtt_stolen_size(void)
}
if (stolen_size > 0) {
dev_info(&intel_private.bridge_dev->dev, "detected %dK %s memory\n",
stolen_size / KB(1), local ? "local" : "stolen");
dev_info(&intel_private.bridge_dev->dev, "detected %lluK %s memory\n",
(u64)stolen_size / KB(1), local ? "local" : "stolen");
} else {
dev_info(&intel_private.bridge_dev->dev,
"no pre-allocated video memory detected\n");
@ -872,6 +872,8 @@ void intel_gtt_insert_sg_entries(struct sg_table *st,
}
}
wmb();
if (intel_private.driver->chipset_flush)
intel_private.driver->chipset_flush();
}
EXPORT_SYMBOL(intel_gtt_insert_sg_entries);
@ -1422,12 +1424,10 @@ int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev,
EXPORT_SYMBOL(intel_gmch_probe);
void intel_gtt_get(u64 *gtt_total,
u32 *stolen_size,
phys_addr_t *mappable_base,
u64 *mappable_end)
resource_size_t *mappable_end)
{
*gtt_total = intel_private.gtt_total_entries << PAGE_SHIFT;
*stolen_size = intel_private.stolen_size;
*mappable_base = intel_private.gma_bus_addr;
*mappable_end = intel_private.gtt_mappable_entries << PAGE_SHIFT;
}

3
drivers/gpu/drm/i915/gvt/Makefile
View File

@ -2,7 +2,8 @@
GVT_DIR := gvt
GVT_SOURCE := gvt.o aperture_gm.o handlers.o vgpu.o trace_points.o firmware.o \
interrupt.o gtt.o cfg_space.o opregion.o mmio.o display.o edid.o \
execlist.o scheduler.o sched_policy.o render.o cmd_parser.o debugfs.o
execlist.o scheduler.o sched_policy.o mmio_context.o cmd_parser.o debugfs.o \
fb_decoder.o dmabuf.o
ccflags-y += -I$(src) -I$(src)/$(GVT_DIR)
i915-y += $(addprefix $(GVT_DIR)/, $(GVT_SOURCE))

3
drivers/gpu/drm/i915/gvt/cfg_space.c
View File

@ -335,7 +335,8 @@ int intel_vgpu_emulate_cfg_write(struct intel_vgpu *vgpu, unsigned int offset,
case INTEL_GVT_PCI_OPREGION:
if (WARN_ON(!IS_ALIGNED(offset, 4)))
return -EINVAL;
ret = intel_vgpu_init_opregion(vgpu, *(u32 *)p_data);
ret = intel_vgpu_opregion_base_write_handler(vgpu,
*(u32 *)p_data);
if (ret)
return ret;

2
drivers/gpu/drm/i915/gvt/display.c
View File

@ -67,7 +67,7 @@ static int edp_pipe_is_enabled(struct intel_vgpu *vgpu)
return 1;
}
static int pipe_is_enabled(struct intel_vgpu *vgpu, int pipe)
int pipe_is_enabled(struct intel_vgpu *vgpu, int pipe)
{
struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv;

2
drivers/gpu/drm/i915/gvt/display.h
View File

@ -179,4 +179,6 @@ int intel_vgpu_init_display(struct intel_vgpu *vgpu, u64 resolution);
void intel_vgpu_reset_display(struct intel_vgpu *vgpu);
void intel_vgpu_clean_display(struct intel_vgpu *vgpu);
int pipe_is_enabled(struct intel_vgpu *vgpu, int pipe);
#endif

537
drivers/gpu/drm/i915/gvt/dmabuf.c Normal file
View File

@ -0,0 +1,537 @@
/*
* Copyright 2017 Intel Corporation. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Authors:
* Zhiyuan Lv <zhiyuan.lv@intel.com>
*
* Contributors:
* Xiaoguang Chen
* Tina Zhang <tina.zhang@intel.com>
*/
#include <linux/dma-buf.h>
#include <drm/drmP.h>
#include <linux/vfio.h>
#include "i915_drv.h"
#include "gvt.h"
#define GEN8_DECODE_PTE(pte) (pte & GENMASK_ULL(63, 12))
static int vgpu_gem_get_pages(
struct drm_i915_gem_object *obj)
{
struct drm_i915_private *dev_priv = to_i915(obj->base.dev);
struct sg_table *st;
struct scatterlist *sg;
int i, ret;
gen8_pte_t __iomem *gtt_entries;
struct intel_vgpu_fb_info *fb_info;
fb_info = (struct intel_vgpu_fb_info *)obj->gvt_info;
if (WARN_ON(!fb_info))
return -ENODEV;
st = kmalloc(sizeof(*st), GFP_KERNEL);
if (unlikely(!st))
return -ENOMEM;
ret = sg_alloc_table(st, fb_info->size, GFP_KERNEL);
if (ret) {
kfree(st);
return ret;
}
gtt_entries = (gen8_pte_t __iomem *)dev_priv->ggtt.gsm +
(fb_info->start >> PAGE_SHIFT);
for_each_sg(st->sgl, sg, fb_info->size, i) {
sg->offset = 0;
sg->length = PAGE_SIZE;
sg_dma_address(sg) =
GEN8_DECODE_PTE(readq(&gtt_entries[i]));
sg_dma_len(sg) = PAGE_SIZE;
}
__i915_gem_object_set_pages(obj, st, PAGE_SIZE);
return 0;
}
static void vgpu_gem_put_pages(struct drm_i915_gem_object *obj,
struct sg_table *pages)
{
sg_free_table(pages);
kfree(pages);
}
static void dmabuf_gem_object_free(struct kref *kref)
{
struct intel_vgpu_dmabuf_obj *obj =
container_of(kref, struct intel_vgpu_dmabuf_obj, kref);
struct intel_vgpu *vgpu = obj->vgpu;
struct list_head *pos;
struct intel_vgpu_dmabuf_obj *dmabuf_obj;
if (vgpu && vgpu->active && !list_empty(&vgpu->dmabuf_obj_list_head)) {
list_for_each(pos, &vgpu->dmabuf_obj_list_head) {
dmabuf_obj = container_of(pos,
struct intel_vgpu_dmabuf_obj, list);
if (dmabuf_obj == obj) {
intel_gvt_hypervisor_put_vfio_device(vgpu);
idr_remove(&vgpu->object_idr,
dmabuf_obj->dmabuf_id);
kfree(dmabuf_obj->info);
kfree(dmabuf_obj);
list_del(pos);
break;
}
}
} else {
/* Free the orphan dmabuf_objs here */
kfree(obj->info);
kfree(obj);
}
}
static inline void dmabuf_obj_get(struct intel_vgpu_dmabuf_obj *obj)
{
kref_get(&obj->kref);
}
static inline void dmabuf_obj_put(struct intel_vgpu_dmabuf_obj *obj)
{
kref_put(&obj->kref, dmabuf_gem_object_free);
}
static void vgpu_gem_release(struct drm_i915_gem_object *gem_obj)
{
struct intel_vgpu_fb_info *fb_info = gem_obj->gvt_info;
struct intel_vgpu_dmabuf_obj *obj = fb_info->obj;
struct intel_vgpu *vgpu = obj->vgpu;
if (vgpu) {
mutex_lock(&vgpu->dmabuf_lock);
gem_obj->base.dma_buf = NULL;
dmabuf_obj_put(obj);
mutex_unlock(&vgpu->dmabuf_lock);
} else {
/* vgpu is NULL, as it has been removed already */
gem_obj->base.dma_buf = NULL;
dmabuf_obj_put(obj);
}
}
static const struct drm_i915_gem_object_ops intel_vgpu_gem_ops = {
.flags = I915_GEM_OBJECT_IS_PROXY,
.get_pages = vgpu_gem_get_pages,
.put_pages = vgpu_gem_put_pages,
.release = vgpu_gem_release,
};
static struct drm_i915_gem_object *vgpu_create_gem(struct drm_device *dev,
struct intel_vgpu_fb_info *info)
{
struct drm_i915_private *dev_priv = to_i915(dev);
struct drm_i915_gem_object *obj;
obj = i915_gem_object_alloc(dev_priv);
if (obj == NULL)
return NULL;
drm_gem_private_object_init(dev, &obj->base,
info->size << PAGE_SHIFT);
i915_gem_object_init(obj, &intel_vgpu_gem_ops);
obj->base.read_domains = I915_GEM_DOMAIN_GTT;
obj->base.write_domain = 0;
if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) {
unsigned int tiling_mode = 0;
unsigned int stride = 0;
switch (info->drm_format_mod << 10) {
case PLANE_CTL_TILED_LINEAR:
tiling_mode = I915_TILING_NONE;
break;
case PLANE_CTL_TILED_X:
tiling_mode = I915_TILING_X;
stride = info->stride;
break;
case PLANE_CTL_TILED_Y:
tiling_mode = I915_TILING_Y;
stride = info->stride;
break;
default:
gvt_dbg_core("not supported tiling mode\n");
}
obj->tiling_and_stride = tiling_mode | stride;
} else {
obj->tiling_and_stride = info->drm_format_mod ?
I915_TILING_X : 0;
}
return obj;
}
static int vgpu_get_plane_info(struct drm_device *dev,
struct intel_vgpu *vgpu,
struct intel_vgpu_fb_info *info,
int plane_id)
{
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_vgpu_primary_plane_format p;
struct intel_vgpu_cursor_plane_format c;
int ret;
if (plane_id == DRM_PLANE_TYPE_PRIMARY) {
ret = intel_vgpu_decode_primary_plane(vgpu, &p);
if (ret)
return ret;
info->start = p.base;
info->start_gpa = p.base_gpa;
info->width = p.width;
info->height = p.height;
info->stride = p.stride;
info->drm_format = p.drm_format;
info->drm_format_mod = p.tiled;
info->size = (((p.stride * p.height * p.bpp) / 8) +
(PAGE_SIZE - 1)) >> PAGE_SHIFT;
} else if (plane_id == DRM_PLANE_TYPE_CURSOR) {
ret = intel_vgpu_decode_cursor_plane(vgpu, &c);
if (ret)
return ret;
info->start = c.base;
info->start_gpa = c.base_gpa;
info->width = c.width;
info->height = c.height;
info->stride = c.width * (c.bpp / 8);
info->drm_format = c.drm_format;
info->drm_format_mod = 0;
info->x_pos = c.x_pos;
info->y_pos = c.y_pos;
/* The invalid cursor hotspot value is delivered to host
* until we find a way to get the cursor hotspot info of
* guest OS.
*/
info->x_hot = UINT_MAX;
info->y_hot = UINT_MAX;
info->size = (((info->stride * c.height * c.bpp) / 8)
+ (PAGE_SIZE - 1)) >> PAGE_SHIFT;
} else {
gvt_vgpu_err("invalid plane id:%d\n", plane_id);
return -EINVAL;
}
if (info->size == 0) {
gvt_vgpu_err("fb size is zero\n");
return -EINVAL;
}
if (info->start & (PAGE_SIZE - 1)) {
gvt_vgpu_err("Not aligned fb address:0x%llx\n", info->start);
return -EFAULT;
}
if (((info->start >> PAGE_SHIFT) + info->size) >
ggtt_total_entries(&dev_priv->ggtt)) {
gvt_vgpu_err("Invalid GTT offset or size\n");
return -EFAULT;
}
if (!intel_gvt_ggtt_validate_range(vgpu, info->start, info->size)) {
gvt_vgpu_err("invalid gma addr\n");
return -EFAULT;
}
return 0;
}
static struct intel_vgpu_dmabuf_obj *
pick_dmabuf_by_info(struct intel_vgpu *vgpu,
struct intel_vgpu_fb_info *latest_info)
{
struct list_head *pos;
struct intel_vgpu_fb_info *fb_info;
struct intel_vgpu_dmabuf_obj *dmabuf_obj = NULL;
struct intel_vgpu_dmabuf_obj *ret = NULL;
list_for_each(pos, &vgpu->dmabuf_obj_list_head) {
dmabuf_obj = container_of(pos, struct intel_vgpu_dmabuf_obj,
list);
if ((dmabuf_obj == NULL) ||
(dmabuf_obj->info == NULL))
continue;
fb_info = (struct intel_vgpu_fb_info *)dmabuf_obj->info;
if ((fb_info->start == latest_info->start) &&
(fb_info->start_gpa == latest_info->start_gpa) &&
(fb_info->size == latest_info->size) &&
(fb_info->drm_format_mod == latest_info->drm_format_mod) &&
(fb_info->drm_format == latest_info->drm_format) &&
(fb_info->width == latest_info->width) &&
(fb_info->height == latest_info->height)) {
ret = dmabuf_obj;
break;
}
}
return ret;
}
static struct intel_vgpu_dmabuf_obj *
pick_dmabuf_by_num(struct intel_vgpu *vgpu, u32 id)
{
struct list_head *pos;
struct intel_vgpu_dmabuf_obj *dmabuf_obj = NULL;
struct intel_vgpu_dmabuf_obj *ret = NULL;
list_for_each(pos, &vgpu->dmabuf_obj_list_head) {
dmabuf_obj = container_of(pos, struct intel_vgpu_dmabuf_obj,
list);
if (!dmabuf_obj)
continue;
if (dmabuf_obj->dmabuf_id == id) {
ret = dmabuf_obj;
break;
}
}
return ret;
}
static void update_fb_info(struct vfio_device_gfx_plane_info *gvt_dmabuf,
struct intel_vgpu_fb_info *fb_info)
{
gvt_dmabuf->drm_format = fb_info->drm_format;
gvt_dmabuf->width = fb_info->width;
gvt_dmabuf->height = fb_info->height;
gvt_dmabuf->stride = fb_info->stride;
gvt_dmabuf->size = fb_info->size;
gvt_dmabuf->x_pos = fb_info->x_pos;
gvt_dmabuf->y_pos = fb_info->y_pos;
gvt_dmabuf->x_hot = fb_info->x_hot;
gvt_dmabuf->y_hot = fb_info->y_hot;
}
int intel_vgpu_query_plane(struct intel_vgpu *vgpu, void *args)
{
struct drm_device *dev = &vgpu->gvt->dev_priv->drm;
struct vfio_device_gfx_plane_info *gfx_plane_info = args;
struct intel_vgpu_dmabuf_obj *dmabuf_obj;
struct intel_vgpu_fb_info fb_info;
int ret = 0;
if (gfx_plane_info->flags == (VFIO_GFX_PLANE_TYPE_DMABUF |
VFIO_GFX_PLANE_TYPE_PROBE))
return ret;
else if ((gfx_plane_info->flags & ~VFIO_GFX_PLANE_TYPE_DMABUF) ||
(!gfx_plane_info->flags))
return -EINVAL;
ret = vgpu_get_plane_info(dev, vgpu, &fb_info,
gfx_plane_info->drm_plane_type);
if (ret != 0)
goto out;
mutex_lock(&vgpu->dmabuf_lock);
/* If exists, pick up the exposed dmabuf_obj */
dmabuf_obj = pick_dmabuf_by_info(vgpu, &fb_info);
if (dmabuf_obj) {
update_fb_info(gfx_plane_info, &fb_info);
gfx_plane_info->dmabuf_id = dmabuf_obj->dmabuf_id;
/* This buffer may be released between query_plane ioctl and
* get_dmabuf ioctl. Add the refcount to make sure it won't
* be released between the two ioctls.
*/
if (!dmabuf_obj->initref) {
dmabuf_obj->initref = true;
dmabuf_obj_get(dmabuf_obj);
}
ret = 0;
gvt_dbg_dpy("vgpu%d: re-use dmabuf_obj ref %d, id %d\n",
vgpu->id, kref_read(&dmabuf_obj->kref),
gfx_plane_info->dmabuf_id);
mutex_unlock(&vgpu->dmabuf_lock);
goto out;
}
mutex_unlock(&vgpu->dmabuf_lock);
/* Need to allocate a new one*/
dmabuf_obj = kmalloc(sizeof(struct intel_vgpu_dmabuf_obj), GFP_KERNEL);
if (unlikely(!dmabuf_obj)) {
gvt_vgpu_err("alloc dmabuf_obj failed\n");
ret = -ENOMEM;
goto out;
}
dmabuf_obj->info = kmalloc(sizeof(struct intel_vgpu_fb_info),
GFP_KERNEL);
if (unlikely(!dmabuf_obj->info)) {
gvt_vgpu_err("allocate intel vgpu fb info failed\n");
ret = -ENOMEM;
goto out_free_dmabuf;
}
memcpy(dmabuf_obj->info, &fb_info, sizeof(struct intel_vgpu_fb_info));
((struct intel_vgpu_fb_info *)dmabuf_obj->info)->obj = dmabuf_obj;
dmabuf_obj->vgpu = vgpu;
ret = idr_alloc(&vgpu->object_idr, dmabuf_obj, 1, 0, GFP_NOWAIT);
if (ret < 0)
goto out_free_info;
gfx_plane_info->dmabuf_id = ret;
dmabuf_obj->dmabuf_id = ret;
dmabuf_obj->initref = true;
kref_init(&dmabuf_obj->kref);
mutex_lock(&vgpu->dmabuf_lock);
if (intel_gvt_hypervisor_get_vfio_device(vgpu)) {
gvt_vgpu_err("get vfio device failed\n");
mutex_unlock(&vgpu->dmabuf_lock);
goto out_free_info;
}
mutex_unlock(&vgpu->dmabuf_lock);
update_fb_info(gfx_plane_info, &fb_info);
INIT_LIST_HEAD(&dmabuf_obj->list);
mutex_lock(&vgpu->dmabuf_lock);
list_add_tail(&dmabuf_obj->list, &vgpu->dmabuf_obj_list_head);
mutex_unlock(&vgpu->dmabuf_lock);
gvt_dbg_dpy("vgpu%d: %s new dmabuf_obj ref %d, id %d\n", vgpu->id,
__func__, kref_read(&dmabuf_obj->kref), ret);
return 0;
out_free_info:
kfree(dmabuf_obj->info);
out_free_dmabuf:
kfree(dmabuf_obj);
out:
/* ENODEV means plane isn't ready, which might be a normal case. */
return (ret == -ENODEV) ? 0 : ret;
}
/* To associate an exposed dmabuf with the dmabuf_obj */
int intel_vgpu_get_dmabuf(struct intel_vgpu *vgpu, unsigned int dmabuf_id)
{
struct drm_device *dev = &vgpu->gvt->dev_priv->drm;
struct intel_vgpu_dmabuf_obj *dmabuf_obj;
struct drm_i915_gem_object *obj;
struct dma_buf *dmabuf;
int dmabuf_fd;
int ret = 0;
mutex_lock(&vgpu->dmabuf_lock);
dmabuf_obj = pick_dmabuf_by_num(vgpu, dmabuf_id);
if (dmabuf_obj == NULL) {
gvt_vgpu_err("invalid dmabuf id:%d\n", dmabuf_id);
ret = -EINVAL;
goto out;
}
obj = vgpu_create_gem(dev, dmabuf_obj->info);
if (obj == NULL) {
gvt_vgpu_err("create gvt gem obj failed:%d\n", vgpu->id);
ret = -ENOMEM;
goto out;
}
obj->gvt_info = dmabuf_obj->info;
dmabuf = i915_gem_prime_export(dev, &obj->base, DRM_CLOEXEC | DRM_RDWR);
if (IS_ERR(dmabuf)) {
gvt_vgpu_err("export dma-buf failed\n");
ret = PTR_ERR(dmabuf);
goto out_free_gem;
}
obj->base.dma_buf = dmabuf;
i915_gem_object_put(obj);
ret = dma_buf_fd(dmabuf, DRM_CLOEXEC | DRM_RDWR);
if (ret < 0) {
gvt_vgpu_err("create dma-buf fd failed ret:%d\n", ret);
goto out_free_dmabuf;
}
dmabuf_fd = ret;
dmabuf_obj_get(dmabuf_obj);
if (dmabuf_obj->initref) {
dmabuf_obj->initref = false;
dmabuf_obj_put(dmabuf_obj);
}
mutex_unlock(&vgpu->dmabuf_lock);
gvt_dbg_dpy("vgpu%d: dmabuf:%d, dmabuf ref %d, fd:%d\n"
" file count: %ld, GEM ref: %d\n",
vgpu->id, dmabuf_obj->dmabuf_id,
kref_read(&dmabuf_obj->kref),
dmabuf_fd,
file_count(dmabuf->file),
kref_read(&obj->base.refcount));
return dmabuf_fd;
out_free_dmabuf:
dma_buf_put(dmabuf);
out_free_gem:
i915_gem_object_put(obj);
out:
mutex_unlock(&vgpu->dmabuf_lock);
return ret;
}
void intel_vgpu_dmabuf_cleanup(struct intel_vgpu *vgpu)
{
struct list_head *pos, *n;
struct intel_vgpu_dmabuf_obj *dmabuf_obj;
mutex_lock(&vgpu->dmabuf_lock);
list_for_each_safe(pos, n, &vgpu->dmabuf_obj_list_head) {
dmabuf_obj = container_of(pos, struct intel_vgpu_dmabuf_obj,
list);
dmabuf_obj->vgpu = NULL;
idr_remove(&vgpu->object_idr, dmabuf_obj->dmabuf_id);
intel_gvt_hypervisor_put_vfio_device(vgpu);
list_del(pos);
/* dmabuf_obj might be freed in dmabuf_obj_put */
if (dmabuf_obj->initref) {
dmabuf_obj->initref = false;
dmabuf_obj_put(dmabuf_obj);
}
}
mutex_unlock(&vgpu->dmabuf_lock);
}

67
drivers/gpu/drm/i915/gvt/dmabuf.h Normal file
View File

@ -0,0 +1,67 @@
/*
* Copyright(c) 2017 Intel Corporation. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Authors:
* Zhiyuan Lv <zhiyuan.lv@intel.com>
*
* Contributors:
* Xiaoguang Chen
* Tina Zhang <tina.zhang@intel.com>
*/
#ifndef _GVT_DMABUF_H_
#define _GVT_DMABUF_H_
#include <linux/vfio.h>
struct intel_vgpu_fb_info {
__u64 start;
__u64 start_gpa;
__u64 drm_format_mod;
__u32 drm_format; /* drm format of plane */
__u32 width; /* width of plane */
__u32 height; /* height of plane */
__u32 stride; /* stride of plane */
__u32 size; /* size of plane in bytes, align on page */
__u32 x_pos; /* horizontal position of cursor plane */
__u32 y_pos; /* vertical position of cursor plane */
__u32 x_hot; /* horizontal position of cursor hotspot */
__u32 y_hot; /* vertical position of cursor hotspot */
struct intel_vgpu_dmabuf_obj *obj;
};
/**
* struct intel_vgpu_dmabuf_obj- Intel vGPU device buffer object
*/
struct intel_vgpu_dmabuf_obj {
struct intel_vgpu *vgpu;
struct intel_vgpu_fb_info *info;
__u32 dmabuf_id;
struct kref kref;
bool initref;
struct list_head list;
};
int intel_vgpu_query_plane(struct intel_vgpu *vgpu, void *args);
int intel_vgpu_get_dmabuf(struct intel_vgpu *vgpu, unsigned int dmabuf_id);
void intel_vgpu_dmabuf_cleanup(struct intel_vgpu *vgpu);
#endif

8
drivers/gpu/drm/i915/gvt/execlist.c
View File

@ -458,7 +458,7 @@ static int submit_context(struct intel_vgpu *vgpu, int ring_id,
gvt_dbg_el("workload %p emulate schedule_in %d\n", workload,
emulate_schedule_in);
queue_workload(workload);
intel_vgpu_queue_workload(workload);
return 0;
}
@ -528,7 +528,7 @@ static void init_vgpu_execlist(struct intel_vgpu *vgpu, int ring_id)
vgpu_vreg(vgpu, ctx_status_ptr_reg) = ctx_status_ptr.dw;
}
void clean_execlist(struct intel_vgpu *vgpu)
static void clean_execlist(struct intel_vgpu *vgpu)
{
enum intel_engine_id i;
struct intel_engine_cs *engine;
@ -542,7 +542,7 @@ void clean_execlist(struct intel_vgpu *vgpu)
}
}
void reset_execlist(struct intel_vgpu *vgpu,
static void reset_execlist(struct intel_vgpu *vgpu,
unsigned long engine_mask)
{
struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv;
@ -553,7 +553,7 @@ void reset_execlist(struct intel_vgpu *vgpu,
init_vgpu_execlist(vgpu, engine->id);
}
int init_execlist(struct intel_vgpu *vgpu)
static int init_execlist(struct intel_vgpu *vgpu)
{
reset_execlist(vgpu, ALL_ENGINES);
return 0;

514
drivers/gpu/drm/i915/gvt/fb_decoder.c Normal file
View File

@ -0,0 +1,514 @@
/*
* Copyright(c) 2011-2016 Intel Corporation. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Authors:
* Kevin Tian <kevin.tian@intel.com>
*
* Contributors:
* Bing Niu <bing.niu@intel.com>
* Xu Han <xu.han@intel.com>
* Ping Gao <ping.a.gao@intel.com>
* Xiaoguang Chen <xiaoguang.chen@intel.com>
* Yang Liu <yang2.liu@intel.com>
* Tina Zhang <tina.zhang@intel.com>
*
*/
#include <uapi/drm/drm_fourcc.h>
#include "i915_drv.h"
#include "gvt.h"
#define PRIMARY_FORMAT_NUM 16
struct pixel_format {
int drm_format; /* Pixel format in DRM definition */
int bpp; /* Bits per pixel, 0 indicates invalid */
char *desc; /* The description */
};
static struct pixel_format bdw_pixel_formats[] = {
{DRM_FORMAT_C8, 8, "8-bit Indexed"},
{DRM_FORMAT_RGB565, 16, "16-bit BGRX (5:6:5 MSB-R:G:B)"},
{DRM_FORMAT_XRGB8888, 32, "32-bit BGRX (8:8:8:8 MSB-X:R:G:B)"},
{DRM_FORMAT_XBGR2101010, 32, "32-bit RGBX (2:10:10:10 MSB-X:B:G:R)"},
{DRM_FORMAT_XRGB2101010, 32, "32-bit BGRX (2:10:10:10 MSB-X:R:G:B)"},
{DRM_FORMAT_XBGR8888, 32, "32-bit RGBX (8:8:8:8 MSB-X:B:G:R)"},
/* non-supported format has bpp default to 0 */
{0, 0, NULL},
};
static struct pixel_format skl_pixel_formats[] = {
{DRM_FORMAT_YUYV, 16, "16-bit packed YUYV (8:8:8:8 MSB-V:Y2:U:Y1)"},
{DRM_FORMAT_UYVY, 16, "16-bit packed UYVY (8:8:8:8 MSB-Y2:V:Y1:U)"},
{DRM_FORMAT_YVYU, 16, "16-bit packed YVYU (8:8:8:8 MSB-U:Y2:V:Y1)"},
{DRM_FORMAT_VYUY, 16, "16-bit packed VYUY (8:8:8:8 MSB-Y2:U:Y1:V)"},
{DRM_FORMAT_C8, 8, "8-bit Indexed"},
{DRM_FORMAT_RGB565, 16, "16-bit BGRX (5:6:5 MSB-R:G:B)"},
{DRM_FORMAT_ABGR8888, 32, "32-bit RGBA (8:8:8:8 MSB-A:B:G:R)"},
{DRM_FORMAT_XBGR8888, 32, "32-bit RGBX (8:8:8:8 MSB-X:B:G:R)"},
{DRM_FORMAT_ARGB8888, 32, "32-bit BGRA (8:8:8:8 MSB-A:R:G:B)"},
{DRM_FORMAT_XRGB8888, 32, "32-bit BGRX (8:8:8:8 MSB-X:R:G:B)"},
{DRM_FORMAT_XBGR2101010, 32, "32-bit RGBX (2:10:10:10 MSB-X:B:G:R)"},
{DRM_FORMAT_XRGB2101010, 32, "32-bit BGRX (2:10:10:10 MSB-X:R:G:B)"},
/* non-supported format has bpp default to 0 */
{0, 0, NULL},
};
static int bdw_format_to_drm(int format)
{
int bdw_pixel_formats_index = 6;
switch (format) {
case DISPPLANE_8BPP:
bdw_pixel_formats_index = 0;
break;
case DISPPLANE_BGRX565:
bdw_pixel_formats_index = 1;
break;
case DISPPLANE_BGRX888:
bdw_pixel_formats_index = 2;
break;
case DISPPLANE_RGBX101010:
bdw_pixel_formats_index = 3;
break;
case DISPPLANE_BGRX101010:
bdw_pixel_formats_index = 4;
break;
case DISPPLANE_RGBX888:
bdw_pixel_formats_index = 5;
break;
default:
break;
}
return bdw_pixel_formats_index;
}
static int skl_format_to_drm(int format, bool rgb_order, bool alpha,
int yuv_order)
{
int skl_pixel_formats_index = 12;
switch (format) {
case PLANE_CTL_FORMAT_INDEXED:
skl_pixel_formats_index = 4;
break;
case PLANE_CTL_FORMAT_RGB_565:
skl_pixel_formats_index = 5;
break;
case PLANE_CTL_FORMAT_XRGB_8888:
if (rgb_order)
skl_pixel_formats_index = alpha ? 6 : 7;
else
skl_pixel_formats_index = alpha ? 8 : 9;
break;
case PLANE_CTL_FORMAT_XRGB_2101010:
skl_pixel_formats_index = rgb_order ? 10 : 11;
break;
case PLANE_CTL_FORMAT_YUV422:
skl_pixel_formats_index = yuv_order >> 16;
if (skl_pixel_formats_index > 3)
return -EINVAL;
break;
default:
break;
}
return skl_pixel_formats_index;
}
static u32 intel_vgpu_get_stride(struct intel_vgpu *vgpu, int pipe,
u32 tiled, int stride_mask, int bpp)
{
struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv;
u32 stride_reg = vgpu_vreg(vgpu, DSPSTRIDE(pipe)) & stride_mask;
u32 stride = stride_reg;
if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) {
switch (tiled) {
case PLANE_CTL_TILED_LINEAR:
stride = stride_reg * 64;
break;
case PLANE_CTL_TILED_X:
stride = stride_reg * 512;
break;
case PLANE_CTL_TILED_Y:
stride = stride_reg * 128;
break;
case PLANE_CTL_TILED_YF:
if (bpp == 8)
stride = stride_reg * 64;
else if (bpp == 16 || bpp == 32 || bpp == 64)
stride = stride_reg * 128;
else
gvt_dbg_core("skl: unsupported bpp:%d\n", bpp);
break;
default:
gvt_dbg_core("skl: unsupported tile format:%x\n",
tiled);
}
}
return stride;
}
static int get_active_pipe(struct intel_vgpu *vgpu)
{
int i;
for (i = 0; i < I915_MAX_PIPES; i++)
if (pipe_is_enabled(vgpu, i))
break;
return i;
}
/**
* intel_vgpu_decode_primary_plane - Decode primary plane
* @vgpu: input vgpu
* @plane: primary plane to save decoded info
* This function is called for decoding plane
*
* Returns:
* 0 on success, non-zero if failed.
*/
int intel_vgpu_decode_primary_plane(struct intel_vgpu *vgpu,
struct intel_vgpu_primary_plane_format *plane)
{
u32 val, fmt;
struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv;
int pipe;
pipe = get_active_pipe(vgpu);
if (pipe >= I915_MAX_PIPES)
return -ENODEV;
val = vgpu_vreg(vgpu, DSPCNTR(pipe));
plane->enabled = !!(val & DISPLAY_PLANE_ENABLE);
if (!plane->enabled)
return -ENODEV;
if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) {
plane->tiled = (val & PLANE_CTL_TILED_MASK) >>
_PLANE_CTL_TILED_SHIFT;
fmt = skl_format_to_drm(
val & PLANE_CTL_FORMAT_MASK,
val & PLANE_CTL_ORDER_RGBX,
val & PLANE_CTL_ALPHA_MASK,
val & PLANE_CTL_YUV422_ORDER_MASK);
if (fmt >= ARRAY_SIZE(skl_pixel_formats)) {
gvt_vgpu_err("Out-of-bounds pixel format index\n");
return -EINVAL;
}
plane->bpp = skl_pixel_formats[fmt].bpp;
plane->drm_format = skl_pixel_formats[fmt].drm_format;
} else {
plane->tiled = !!(val & DISPPLANE_TILED);
fmt = bdw_format_to_drm(val & DISPPLANE_PIXFORMAT_MASK);
plane->bpp = bdw_pixel_formats[fmt].bpp;
plane->drm_format = bdw_pixel_formats[fmt].drm_format;
}
if (!plane->bpp) {
gvt_vgpu_err("Non-supported pixel format (0x%x)\n", fmt);
return -EINVAL;
}
plane->hw_format = fmt;
plane->base = vgpu_vreg(vgpu, DSPSURF(pipe)) & I915_GTT_PAGE_MASK;
if (!intel_gvt_ggtt_validate_range(vgpu, plane->base, 0)) {
gvt_vgpu_err("invalid gma address: %lx\n",
(unsigned long)plane->base);
return -EINVAL;
}
plane->base_gpa = intel_vgpu_gma_to_gpa(vgpu->gtt.ggtt_mm, plane->base);
if (plane->base_gpa == INTEL_GVT_INVALID_ADDR) {
gvt_vgpu_err("invalid gma address: %lx\n",
(unsigned long)plane->base);
return -EINVAL;
}
plane->stride = intel_vgpu_get_stride(vgpu, pipe, (plane->tiled << 10),
(IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) ?
(_PRI_PLANE_STRIDE_MASK >> 6) :
_PRI_PLANE_STRIDE_MASK, plane->bpp);
plane->width = (vgpu_vreg(vgpu, PIPESRC(pipe)) & _PIPE_H_SRCSZ_MASK) >>
_PIPE_H_SRCSZ_SHIFT;
plane->width += 1;
plane->height = (vgpu_vreg(vgpu, PIPESRC(pipe)) &
_PIPE_V_SRCSZ_MASK) >> _PIPE_V_SRCSZ_SHIFT;
plane->height += 1; /* raw height is one minus the real value */
val = vgpu_vreg(vgpu, DSPTILEOFF(pipe));
plane->x_offset = (val & _PRI_PLANE_X_OFF_MASK) >>
_PRI_PLANE_X_OFF_SHIFT;
plane->y_offset = (val & _PRI_PLANE_Y_OFF_MASK) >>
_PRI_PLANE_Y_OFF_SHIFT;
return 0;
}
#define CURSOR_FORMAT_NUM (1 << 6)
struct cursor_mode_format {
int drm_format; /* Pixel format in DRM definition */
u8 bpp; /* Bits per pixel; 0 indicates invalid */
u32 width; /* In pixel */
u32 height; /* In lines */
char *desc; /* The description */
};
static struct cursor_mode_format cursor_pixel_formats[] = {
{DRM_FORMAT_ARGB8888, 32, 128, 128, "128x128 32bpp ARGB"},
{DRM_FORMAT_ARGB8888, 32, 256, 256, "256x256 32bpp ARGB"},
{DRM_FORMAT_ARGB8888, 32, 64, 64, "64x64 32bpp ARGB"},
{DRM_FORMAT_ARGB8888, 32, 64, 64, "64x64 32bpp ARGB"},
/* non-supported format has bpp default to 0 */
{0, 0, 0, 0, NULL},
};
static int cursor_mode_to_drm(int mode)
{
int cursor_pixel_formats_index = 4;
switch (mode) {
case CURSOR_MODE_128_ARGB_AX:
cursor_pixel_formats_index = 0;
break;
case CURSOR_MODE_256_ARGB_AX:
cursor_pixel_formats_index = 1;
break;
case CURSOR_MODE_64_ARGB_AX:
cursor_pixel_formats_index = 2;
break;
case CURSOR_MODE_64_32B_AX:
cursor_pixel_formats_index = 3;
break;
default:
break;
}
return cursor_pixel_formats_index;
}
/**
* intel_vgpu_decode_cursor_plane - Decode sprite plane
* @vgpu: input vgpu
* @plane: cursor plane to save decoded info
* This function is called for decoding plane
*
* Returns:
* 0 on success, non-zero if failed.
*/
int intel_vgpu_decode_cursor_plane(struct intel_vgpu *vgpu,
struct intel_vgpu_cursor_plane_format *plane)
{
u32 val, mode, index;
u32 alpha_plane, alpha_force;
struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv;
int pipe;
pipe = get_active_pipe(vgpu);
if (pipe >= I915_MAX_PIPES)
return -ENODEV;
val = vgpu_vreg(vgpu, CURCNTR(pipe));
mode = val & CURSOR_MODE;
plane->enabled = (mode != CURSOR_MODE_DISABLE);
if (!plane->enabled)
return -ENODEV;
index = cursor_mode_to_drm(mode);
if (!cursor_pixel_formats[index].bpp) {
gvt_vgpu_err("Non-supported cursor mode (0x%x)\n", mode);
return -EINVAL;
}
plane->mode = mode;
plane->bpp = cursor_pixel_formats[index].bpp;
plane->drm_format = cursor_pixel_formats[index].drm_format;
plane->width = cursor_pixel_formats[index].width;
plane->height = cursor_pixel_formats[index].height;
alpha_plane = (val & _CURSOR_ALPHA_PLANE_MASK) >>
_CURSOR_ALPHA_PLANE_SHIFT;
alpha_force = (val & _CURSOR_ALPHA_FORCE_MASK) >>
_CURSOR_ALPHA_FORCE_SHIFT;
if (alpha_plane || alpha_force)
gvt_dbg_core("alpha_plane=0x%x, alpha_force=0x%x\n",
alpha_plane, alpha_force);
plane->base = vgpu_vreg(vgpu, CURBASE(pipe)) & I915_GTT_PAGE_MASK;
if (!intel_gvt_ggtt_validate_range(vgpu, plane->base, 0)) {
gvt_vgpu_err("invalid gma address: %lx\n",
(unsigned long)plane->base);
return -EINVAL;
}
plane->base_gpa = intel_vgpu_gma_to_gpa(vgpu->gtt.ggtt_mm, plane->base);
if (plane->base_gpa == INTEL_GVT_INVALID_ADDR) {
gvt_vgpu_err("invalid gma address: %lx\n",
(unsigned long)plane->base);
return -EINVAL;
}
val = vgpu_vreg(vgpu, CURPOS(pipe));
plane->x_pos = (val & _CURSOR_POS_X_MASK) >> _CURSOR_POS_X_SHIFT;
plane->x_sign = (val & _CURSOR_SIGN_X_MASK) >> _CURSOR_SIGN_X_SHIFT;
plane->y_pos = (val & _CURSOR_POS_Y_MASK) >> _CURSOR_POS_Y_SHIFT;
plane->y_sign = (val & _CURSOR_SIGN_Y_MASK) >> _CURSOR_SIGN_Y_SHIFT;
return 0;
}
#define SPRITE_FORMAT_NUM (1 << 3)
static struct pixel_format sprite_pixel_formats[SPRITE_FORMAT_NUM] = {
[0x0] = {DRM_FORMAT_YUV422, 16, "YUV 16-bit 4:2:2 packed"},
[0x1] = {DRM_FORMAT_XRGB2101010, 32, "RGB 32-bit 2:10:10:10"},
[0x2] = {DRM_FORMAT_XRGB8888, 32, "RGB 32-bit 8:8:8:8"},
[0x4] = {DRM_FORMAT_AYUV, 32,
"YUV 32-bit 4:4:4 packed (8:8:8:8 MSB-X:Y:U:V)"},
};
/**
* intel_vgpu_decode_sprite_plane - Decode sprite plane
* @vgpu: input vgpu
* @plane: sprite plane to save decoded info
* This function is called for decoding plane
*
* Returns:
* 0 on success, non-zero if failed.
*/
int intel_vgpu_decode_sprite_plane(struct intel_vgpu *vgpu,
struct intel_vgpu_sprite_plane_format *plane)
{
u32 val, fmt;
u32 color_order, yuv_order;
int drm_format;
int pipe;
pipe = get_active_pipe(vgpu);
if (pipe >= I915_MAX_PIPES)
return -ENODEV;
val = vgpu_vreg(vgpu, SPRCTL(pipe));
plane->enabled = !!(val & SPRITE_ENABLE);
if (!plane->enabled)
return -ENODEV;
plane->tiled = !!(val & SPRITE_TILED);
color_order = !!(val & SPRITE_RGB_ORDER_RGBX);
yuv_order = (val & SPRITE_YUV_BYTE_ORDER_MASK) >>
_SPRITE_YUV_ORDER_SHIFT;
fmt = (val & SPRITE_PIXFORMAT_MASK) >> _SPRITE_FMT_SHIFT;
if (!sprite_pixel_formats[fmt].bpp) {
gvt_vgpu_err("Non-supported pixel format (0x%x)\n", fmt);
return -EINVAL;
}
plane->hw_format = fmt;
plane->bpp = sprite_pixel_formats[fmt].bpp;
drm_format = sprite_pixel_formats[fmt].drm_format;
/* Order of RGB values in an RGBxxx buffer may be ordered RGB or
* BGR depending on the state of the color_order field
*/
if (!color_order) {
if (drm_format == DRM_FORMAT_XRGB2101010)
drm_format = DRM_FORMAT_XBGR2101010;
else if (drm_format == DRM_FORMAT_XRGB8888)
drm_format = DRM_FORMAT_XBGR8888;
}
if (drm_format == DRM_FORMAT_YUV422) {
switch (yuv_order) {
case 0:
drm_format = DRM_FORMAT_YUYV;
break;
case 1:
drm_format = DRM_FORMAT_UYVY;
break;
case 2:
drm_format = DRM_FORMAT_YVYU;
break;
case 3:
drm_format = DRM_FORMAT_VYUY;
break;
default:
/* yuv_order has only 2 bits */
break;
}
}
plane->drm_format = drm_format;
plane->base = vgpu_vreg(vgpu, SPRSURF(pipe)) & I915_GTT_PAGE_MASK;
if (!intel_gvt_ggtt_validate_range(vgpu, plane->base, 0)) {
gvt_vgpu_err("invalid gma address: %lx\n",
(unsigned long)plane->base);
return -EINVAL;
}
plane->base_gpa = intel_vgpu_gma_to_gpa(vgpu->gtt.ggtt_mm, plane->base);
if (plane->base_gpa == INTEL_GVT_INVALID_ADDR) {
gvt_vgpu_err("invalid gma address: %lx\n",
(unsigned long)plane->base);
return -EINVAL;
}
plane->stride = vgpu_vreg(vgpu, SPRSTRIDE(pipe)) &
_SPRITE_STRIDE_MASK;
val = vgpu_vreg(vgpu, SPRSIZE(pipe));
plane->height = (val & _SPRITE_SIZE_HEIGHT_MASK) >>
_SPRITE_SIZE_HEIGHT_SHIFT;
plane->width = (val & _SPRITE_SIZE_WIDTH_MASK) >>
_SPRITE_SIZE_WIDTH_SHIFT;
plane->height += 1; /* raw height is one minus the real value */
plane->width += 1; /* raw width is one minus the real value */
val = vgpu_vreg(vgpu, SPRPOS(pipe));
plane->x_pos = (val & _SPRITE_POS_X_MASK) >> _SPRITE_POS_X_SHIFT;
plane->y_pos = (val & _SPRITE_POS_Y_MASK) >> _SPRITE_POS_Y_SHIFT;
val = vgpu_vreg(vgpu, SPROFFSET(pipe));
plane->x_offset = (val & _SPRITE_OFFSET_START_X_MASK) >>
_SPRITE_OFFSET_START_X_SHIFT;
plane->y_offset = (val & _SPRITE_OFFSET_START_Y_MASK) >>
_SPRITE_OFFSET_START_Y_SHIFT;
return 0;
}

169
drivers/gpu/drm/i915/gvt/fb_decoder.h Normal file
View File

@ -0,0 +1,169 @@
/*
* Copyright(c) 2011-2016 Intel Corporation. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Authors:
* Kevin Tian <kevin.tian@intel.com>
*
* Contributors:
* Bing Niu <bing.niu@intel.com>
* Xu Han <xu.han@intel.com>
* Ping Gao <ping.a.gao@intel.com>
* Xiaoguang Chen <xiaoguang.chen@intel.com>
* Yang Liu <yang2.liu@intel.com>
* Tina Zhang <tina.zhang@intel.com>
*
*/
#ifndef _GVT_FB_DECODER_H_
#define _GVT_FB_DECODER_H_
#define _PLANE_CTL_FORMAT_SHIFT 24
#define _PLANE_CTL_TILED_SHIFT 10
#define _PIPE_V_SRCSZ_SHIFT 0
#define _PIPE_V_SRCSZ_MASK (0xfff << _PIPE_V_SRCSZ_SHIFT)
#define _PIPE_H_SRCSZ_SHIFT 16
#define _PIPE_H_SRCSZ_MASK (0x1fff << _PIPE_H_SRCSZ_SHIFT)
#define _PRI_PLANE_FMT_SHIFT 26
#define _PRI_PLANE_STRIDE_MASK (0x3ff << 6)
#define _PRI_PLANE_X_OFF_SHIFT 0
#define _PRI_PLANE_X_OFF_MASK (0x1fff << _PRI_PLANE_X_OFF_SHIFT)
#define _PRI_PLANE_Y_OFF_SHIFT 16
#define _PRI_PLANE_Y_OFF_MASK (0xfff << _PRI_PLANE_Y_OFF_SHIFT)
#define _CURSOR_MODE 0x3f
#define _CURSOR_ALPHA_FORCE_SHIFT 8
#define _CURSOR_ALPHA_FORCE_MASK (0x3 << _CURSOR_ALPHA_FORCE_SHIFT)
#define _CURSOR_ALPHA_PLANE_SHIFT 10
#define _CURSOR_ALPHA_PLANE_MASK (0x3 << _CURSOR_ALPHA_PLANE_SHIFT)
#define _CURSOR_POS_X_SHIFT 0
#define _CURSOR_POS_X_MASK (0x1fff << _CURSOR_POS_X_SHIFT)
#define _CURSOR_SIGN_X_SHIFT 15
#define _CURSOR_SIGN_X_MASK (1 << _CURSOR_SIGN_X_SHIFT)
#define _CURSOR_POS_Y_SHIFT 16
#define _CURSOR_POS_Y_MASK (0xfff << _CURSOR_POS_Y_SHIFT)
#define _CURSOR_SIGN_Y_SHIFT 31
#define _CURSOR_SIGN_Y_MASK (1 << _CURSOR_SIGN_Y_SHIFT)
#define _SPRITE_FMT_SHIFT 25
#define _SPRITE_COLOR_ORDER_SHIFT 20
#define _SPRITE_YUV_ORDER_SHIFT 16
#define _SPRITE_STRIDE_SHIFT 6
#define _SPRITE_STRIDE_MASK (0x1ff << _SPRITE_STRIDE_SHIFT)
#define _SPRITE_SIZE_WIDTH_SHIFT 0
#define _SPRITE_SIZE_HEIGHT_SHIFT 16
#define _SPRITE_SIZE_WIDTH_MASK (0x1fff << _SPRITE_SIZE_WIDTH_SHIFT)
#define _SPRITE_SIZE_HEIGHT_MASK (0xfff << _SPRITE_SIZE_HEIGHT_SHIFT)
#define _SPRITE_POS_X_SHIFT 0
#define _SPRITE_POS_Y_SHIFT 16
#define _SPRITE_POS_X_MASK (0x1fff << _SPRITE_POS_X_SHIFT)
#define _SPRITE_POS_Y_MASK (0xfff << _SPRITE_POS_Y_SHIFT)
#define _SPRITE_OFFSET_START_X_SHIFT 0
#define _SPRITE_OFFSET_START_Y_SHIFT 16
#define _SPRITE_OFFSET_START_X_MASK (0x1fff << _SPRITE_OFFSET_START_X_SHIFT)
#define _SPRITE_OFFSET_START_Y_MASK (0xfff << _SPRITE_OFFSET_START_Y_SHIFT)
enum GVT_FB_EVENT {
FB_MODE_SET_START = 1,
FB_MODE_SET_END,
FB_DISPLAY_FLIP,
};
enum DDI_PORT {
DDI_PORT_NONE = 0,
DDI_PORT_B = 1,
DDI_PORT_C = 2,
DDI_PORT_D = 3,
DDI_PORT_E = 4
};
struct intel_gvt;
/* color space conversion and gamma correction are not included */
struct intel_vgpu_primary_plane_format {
u8 enabled; /* plane is enabled */
u8 tiled; /* X-tiled */
u8 bpp; /* bits per pixel */
u32 hw_format; /* format field in the PRI_CTL register */
u32 drm_format; /* format in DRM definition */
u32 base; /* framebuffer base in graphics memory */
u64 base_gpa;
u32 x_offset; /* in pixels */
u32 y_offset; /* in lines */
u32 width; /* in pixels */
u32 height; /* in lines */
u32 stride; /* in bytes */
};
struct intel_vgpu_sprite_plane_format {
u8 enabled; /* plane is enabled */
u8 tiled; /* X-tiled */
u8 bpp; /* bits per pixel */
u32 hw_format; /* format field in the SPR_CTL register */
u32 drm_format; /* format in DRM definition */
u32 base; /* sprite base in graphics memory */
u64 base_gpa;
u32 x_pos; /* in pixels */
u32 y_pos; /* in lines */
u32 x_offset; /* in pixels */
u32 y_offset; /* in lines */
u32 width; /* in pixels */
u32 height; /* in lines */
u32 stride; /* in bytes */
};
struct intel_vgpu_cursor_plane_format {
u8 enabled;
u8 mode; /* cursor mode select */
u8 bpp; /* bits per pixel */
u32 drm_format; /* format in DRM definition */
u32 base; /* cursor base in graphics memory */
u64 base_gpa;
u32 x_pos; /* in pixels */
u32 y_pos; /* in lines */
u8 x_sign; /* X Position Sign */
u8 y_sign; /* Y Position Sign */
u32 width; /* in pixels */
u32 height; /* in lines */
u32 x_hot; /* in pixels */
u32 y_hot; /* in pixels */
};
struct intel_vgpu_pipe_format {
struct intel_vgpu_primary_plane_format primary;
struct intel_vgpu_sprite_plane_format sprite;
struct intel_vgpu_cursor_plane_format cursor;
enum DDI_PORT ddi_port; /* the DDI port that pipe is connected to */
};
struct intel_vgpu_fb_format {
struct intel_vgpu_pipe_format pipes[I915_MAX_PIPES];
};
int intel_vgpu_decode_primary_plane(struct intel_vgpu *vgpu,
struct intel_vgpu_primary_plane_format *plane);
int intel_vgpu_decode_cursor_plane(struct intel_vgpu *vgpu,
struct intel_vgpu_cursor_plane_format *plane);
int intel_vgpu_decode_sprite_plane(struct intel_vgpu *vgpu,
struct intel_vgpu_sprite_plane_format *plane);
#endif

4
drivers/gpu/drm/i915/gvt/gvt.c
View File

@ -181,6 +181,8 @@ static const struct intel_gvt_ops intel_gvt_ops = {
.vgpu_deactivate = intel_gvt_deactivate_vgpu,
.gvt_find_vgpu_type = intel_gvt_find_vgpu_type,
.get_gvt_attrs = intel_get_gvt_attrs,
.vgpu_query_plane = intel_vgpu_query_plane,
.vgpu_get_dmabuf = intel_vgpu_get_dmabuf,
};
/**
@ -384,6 +386,8 @@ int intel_gvt_init_device(struct drm_i915_private *dev_priv)
if (ret)
goto out_clean_idr;
intel_gvt_init_engine_mmio_context(gvt);
ret = intel_gvt_load_firmware(gvt);
if (ret)
goto out_clean_mmio_info;

23
drivers/gpu/drm/i915/gvt/gvt.h
View File

@ -44,8 +44,10 @@
#include "execlist.h"
#include "scheduler.h"
#include "sched_policy.h"
#include "render.h"
#include "mmio_context.h"
#include "cmd_parser.h"
#include "fb_decoder.h"
#include "dmabuf.h"
#define GVT_MAX_VGPU 8
@ -123,7 +125,9 @@ struct intel_vgpu_irq {
};
struct intel_vgpu_opregion {
bool mapped;
void *va;
void *va_gopregion;
u32 gfn[INTEL_GVT_OPREGION_PAGES];
};
@ -206,8 +210,16 @@ struct intel_vgpu {
struct kvm *kvm;
struct work_struct release_work;
atomic_t released;
struct vfio_device *vfio_device;
} vdev;
#endif
struct list_head dmabuf_obj_list_head;
struct mutex dmabuf_lock;
struct idr object_idr;
struct completion vblank_done;
};
/* validating GM healthy status*/
@ -298,6 +310,8 @@ struct intel_gvt {
wait_queue_head_t service_thread_wq;
unsigned long service_request;
struct engine_mmio *engine_mmio_list;
struct dentry *debugfs_root;
};
@ -336,7 +350,7 @@ int intel_gvt_load_firmware(struct intel_gvt *gvt);
/* Aperture/GM space definitions for GVT device */
#define gvt_aperture_sz(gvt) (gvt->dev_priv->ggtt.mappable_end)
#define gvt_aperture_pa_base(gvt) (gvt->dev_priv->ggtt.mappable_base)
#define gvt_aperture_pa_base(gvt) (gvt->dev_priv->ggtt.gmadr.start)
#define gvt_ggtt_gm_sz(gvt) (gvt->dev_priv->ggtt.base.total)
#define gvt_ggtt_sz(gvt) \
@ -505,7 +519,8 @@ static inline u64 intel_vgpu_get_bar_gpa(struct intel_vgpu *vgpu, int bar)
}
void intel_vgpu_clean_opregion(struct intel_vgpu *vgpu);
int intel_vgpu_init_opregion(struct intel_vgpu *vgpu, u32 gpa);
int intel_vgpu_init_opregion(struct intel_vgpu *vgpu);
int intel_vgpu_opregion_base_write_handler(struct intel_vgpu *vgpu, u32 gpa);
int intel_vgpu_emulate_opregion_request(struct intel_vgpu *vgpu, u32 swsci);
void populate_pvinfo_page(struct intel_vgpu *vgpu);
@ -532,6 +547,8 @@ struct intel_gvt_ops {
const char *name);
bool (*get_gvt_attrs)(struct attribute ***type_attrs,
struct attribute_group ***intel_vgpu_type_groups);
int (*vgpu_query_plane)(struct intel_vgpu *vgpu, void *);
int (*vgpu_get_dmabuf)(struct intel_vgpu *vgpu, unsigned int);
};

6
drivers/gpu/drm/i915/gvt/handlers.c
View File

@ -174,8 +174,10 @@ void enter_failsafe_mode(struct intel_vgpu *vgpu, int reason)
break;
case GVT_FAILSAFE_INSUFFICIENT_RESOURCE:
pr_err("Graphics resource is not enough for the guest\n");
break;
case GVT_FAILSAFE_GUEST_ERR:
pr_err("GVT Internal error for the guest\n");
break;
default:
break;
}
@ -1396,7 +1398,7 @@ static int hws_pga_write(struct intel_vgpu *vgpu, unsigned int offset,
* update the VM CSB status correctly. Here listed registers can
* support BDW, SKL or other platforms with same HWSP registers.
*/
if (unlikely(ring_id < 0 || ring_id > I915_NUM_ENGINES)) {
if (unlikely(ring_id < 0 || ring_id >= I915_NUM_ENGINES)) {
gvt_vgpu_err("VM(%d) access unknown hardware status page register:0x%x\n",
vgpu->id, offset);
return -EINVAL;
@ -1471,7 +1473,7 @@ static int elsp_mmio_write(struct intel_vgpu *vgpu, unsigned int offset,
u32 data = *(u32 *)p_data;
int ret = 0;
if (WARN_ON(ring_id < 0 || ring_id > I915_NUM_ENGINES - 1))
if (WARN_ON(ring_id < 0 || ring_id >= I915_NUM_ENGINES))
return -EINVAL;
execlist = &vgpu->submission.execlist[ring_id];

3
drivers/gpu/drm/i915/gvt/hypercall.h
View File

@ -55,6 +55,9 @@ struct intel_gvt_mpt {
unsigned long mfn, unsigned int nr, bool map);
int (*set_trap_area)(unsigned long handle, u64 start, u64 end,
bool map);
int (*set_opregion)(void *vgpu);
int (*get_vfio_device)(void *vgpu);
void (*put_vfio_device)(void *vgpu);
};
extern struct intel_gvt_mpt xengt_mpt;

167
drivers/gpu/drm/i915/gvt/kvmgt.c
View File

@ -53,11 +53,23 @@ static const struct intel_gvt_ops *intel_gvt_ops;
#define VFIO_PCI_INDEX_TO_OFFSET(index) ((u64)(index) << VFIO_PCI_OFFSET_SHIFT)
#define VFIO_PCI_OFFSET_MASK (((u64)(1) << VFIO_PCI_OFFSET_SHIFT) - 1)
#define OPREGION_SIGNATURE "IntelGraphicsMem"
struct vfio_region;
struct intel_vgpu_regops {
size_t (*rw)(struct intel_vgpu *vgpu, char *buf,
size_t count, loff_t *ppos, bool iswrite);
void (*release)(struct intel_vgpu *vgpu,
struct vfio_region *region);
};
struct vfio_region {
u32 type;
u32 subtype;
size_t size;
u32 flags;
const struct intel_vgpu_regops *ops;
void *data;
};
struct kvmgt_pgfn {
@ -316,6 +328,108 @@ static void kvmgt_protect_table_del(struct kvmgt_guest_info *info,
}
}
static size_t intel_vgpu_reg_rw_opregion(struct intel_vgpu *vgpu, char *buf,
size_t count, loff_t *ppos, bool iswrite)
{
unsigned int i = VFIO_PCI_OFFSET_TO_INDEX(*ppos) -
VFIO_PCI_NUM_REGIONS;
void *base = vgpu->vdev.region[i].data;
loff_t pos = *ppos & VFIO_PCI_OFFSET_MASK;
if (pos >= vgpu->vdev.region[i].size || iswrite) {
gvt_vgpu_err("invalid op or offset for Intel vgpu OpRegion\n");
return -EINVAL;
}
count = min(count, (size_t)(vgpu->vdev.region[i].size - pos));
memcpy(buf, base + pos, count);
return count;
}
static void intel_vgpu_reg_release_opregion(struct intel_vgpu *vgpu,
struct vfio_region *region)
{
}
static const struct intel_vgpu_regops intel_vgpu_regops_opregion = {
.rw = intel_vgpu_reg_rw_opregion,
.release = intel_vgpu_reg_release_opregion,
};
static int intel_vgpu_register_reg(struct intel_vgpu *vgpu,
unsigned int type, unsigned int subtype,
const struct intel_vgpu_regops *ops,
size_t size, u32 flags, void *data)
{
struct vfio_region *region;
region = krealloc(vgpu->vdev.region,
(vgpu->vdev.num_regions + 1) * sizeof(*region),
GFP_KERNEL);
if (!region)
return -ENOMEM;
vgpu->vdev.region = region;
vgpu->vdev.region[vgpu->vdev.num_regions].type = type;
vgpu->vdev.region[vgpu->vdev.num_regions].subtype = subtype;
vgpu->vdev.region[vgpu->vdev.num_regions].ops = ops;
vgpu->vdev.region[vgpu->vdev.num_regions].size = size;
vgpu->vdev.region[vgpu->vdev.num_regions].flags = flags;
vgpu->vdev.region[vgpu->vdev.num_regions].data = data;
vgpu->vdev.num_regions++;
return 0;
}
static int kvmgt_get_vfio_device(void *p_vgpu)
{
struct intel_vgpu *vgpu = (struct intel_vgpu *)p_vgpu;
vgpu->vdev.vfio_device = vfio_device_get_from_dev(
mdev_dev(vgpu->vdev.mdev));
if (!vgpu->vdev.vfio_device) {
gvt_vgpu_err("failed to get vfio device\n");
return -ENODEV;
}
return 0;
}
static int kvmgt_set_opregion(void *p_vgpu)
{
struct intel_vgpu *vgpu = (struct intel_vgpu *)p_vgpu;
void *base;
int ret;
/* Each vgpu has its own opregion, although VFIO would create another
* one later. This one is used to expose opregion to VFIO. And the
* other one created by VFIO later, is used by guest actually.
*/
base = vgpu_opregion(vgpu)->va;
if (!base)
return -ENOMEM;
if (memcmp(base, OPREGION_SIGNATURE, 16)) {
memunmap(base);
return -EINVAL;
}
ret = intel_vgpu_register_reg(vgpu,
PCI_VENDOR_ID_INTEL | VFIO_REGION_TYPE_PCI_VENDOR_TYPE,
VFIO_REGION_SUBTYPE_INTEL_IGD_OPREGION,
&intel_vgpu_regops_opregion, OPREGION_SIZE,
VFIO_REGION_INFO_FLAG_READ, base);
return ret;
}
static void kvmgt_put_vfio_device(void *vgpu)
{
if (WARN_ON(!((struct intel_vgpu *)vgpu)->vdev.vfio_device))
return;
vfio_device_put(((struct intel_vgpu *)vgpu)->vdev.vfio_device);
}
static int intel_vgpu_create(struct kobject *kobj, struct mdev_device *mdev)
{
struct intel_vgpu *vgpu = NULL;
@ -546,7 +660,7 @@ static ssize_t intel_vgpu_rw(struct mdev_device *mdev, char *buf,
int ret = -EINVAL;
if (index >= VFIO_PCI_NUM_REGIONS) {
if (index >= VFIO_PCI_NUM_REGIONS + vgpu->vdev.num_regions) {
gvt_vgpu_err("invalid index: %u\n", index);
return -EINVAL;
}
@ -574,8 +688,14 @@ static ssize_t intel_vgpu_rw(struct mdev_device *mdev, char *buf,
case VFIO_PCI_BAR5_REGION_INDEX:
case VFIO_PCI_VGA_REGION_INDEX:
case VFIO_PCI_ROM_REGION_INDEX:
break;
default:
gvt_vgpu_err("unsupported region: %u\n", index);
if (index >= VFIO_PCI_NUM_REGIONS + vgpu->vdev.num_regions)
return -EINVAL;
index -= VFIO_PCI_NUM_REGIONS;
return vgpu->vdev.region[index].ops->rw(vgpu, buf, count,
ppos, is_write);
}
return ret == 0 ? count : ret;
@ -838,7 +958,8 @@ static long intel_vgpu_ioctl(struct mdev_device *mdev, unsigned int cmd,
info.flags = VFIO_DEVICE_FLAGS_PCI;
info.flags |= VFIO_DEVICE_FLAGS_RESET;
info.num_regions = VFIO_PCI_NUM_REGIONS;
info.num_regions = VFIO_PCI_NUM_REGIONS +
vgpu->vdev.num_regions;
info.num_irqs = VFIO_PCI_NUM_IRQS;
return copy_to_user((void __user *)arg, &info, minsz) ?
@ -908,13 +1029,17 @@ static long intel_vgpu_ioctl(struct mdev_device *mdev, unsigned int cmd,
case VFIO_PCI_BAR3_REGION_INDEX ... VFIO_PCI_BAR5_REGION_INDEX:
info.offset = VFIO_PCI_INDEX_TO_OFFSET(info.index);
info.size = 0;
info.flags = 0;
gvt_dbg_core("get region info bar:%d\n", info.index);
break;
case VFIO_PCI_ROM_REGION_INDEX:
case VFIO_PCI_VGA_REGION_INDEX:
info.offset = VFIO_PCI_INDEX_TO_OFFSET(info.index);
info.size = 0;
info.flags = 0;
gvt_dbg_core("get region info index:%d\n", info.index);
break;
default:
@ -959,6 +1084,7 @@ static long intel_vgpu_ioctl(struct mdev_device *mdev, unsigned int cmd,
}
if (caps.size) {
info.flags |= VFIO_REGION_INFO_FLAG_CAPS;
if (info.argsz < sizeof(info) + caps.size) {
info.argsz = sizeof(info) + caps.size;
info.cap_offset = 0;
@ -1045,6 +1171,33 @@ static long intel_vgpu_ioctl(struct mdev_device *mdev, unsigned int cmd,
} else if (cmd == VFIO_DEVICE_RESET) {
intel_gvt_ops->vgpu_reset(vgpu);
return 0;
} else if (cmd == VFIO_DEVICE_QUERY_GFX_PLANE) {
struct vfio_device_gfx_plane_info dmabuf;
int ret = 0;
minsz = offsetofend(struct vfio_device_gfx_plane_info,
dmabuf_id);
if (copy_from_user(&dmabuf, (void __user *)arg, minsz))
return -EFAULT;
if (dmabuf.argsz < minsz)
return -EINVAL;
ret = intel_gvt_ops->vgpu_query_plane(vgpu, &dmabuf);
if (ret != 0)
return ret;
return copy_to_user((void __user *)arg, &dmabuf, minsz) ?
-EFAULT : 0;
} else if (cmd == VFIO_DEVICE_GET_GFX_DMABUF) {
__u32 dmabuf_id;
__s32 dmabuf_fd;
if (get_user(dmabuf_id, (__u32 __user *)arg))
return -EFAULT;
dmabuf_fd = intel_gvt_ops->vgpu_get_dmabuf(vgpu, dmabuf_id);
return dmabuf_fd;
}
return 0;
@ -1286,6 +1439,9 @@ static int kvmgt_guest_init(struct mdev_device *mdev)
kvmgt_protect_table_init(info);
gvt_cache_init(vgpu);
mutex_init(&vgpu->dmabuf_lock);
init_completion(&vgpu->vblank_done);
info->track_node.track_write = kvmgt_page_track_write;
info->track_node.track_flush_slot = kvmgt_page_track_flush_slot;
kvm_page_track_register_notifier(kvm, &info->track_node);
@ -1426,6 +1582,9 @@ struct intel_gvt_mpt kvmgt_mpt = {
.read_gpa = kvmgt_read_gpa,
.write_gpa = kvmgt_write_gpa,
.gfn_to_mfn = kvmgt_gfn_to_pfn,
.set_opregion = kvmgt_set_opregion,
.get_vfio_device = kvmgt_get_vfio_device,
.put_vfio_device = kvmgt_put_vfio_device,
};
EXPORT_SYMBOL_GPL(kvmgt_mpt);

36
drivers/gpu/drm/i915/gvt/mmio.c
View File

@ -157,7 +157,6 @@ int intel_vgpu_emulate_mmio_read(struct intel_vgpu *vgpu, uint64_t pa,
unsigned int offset = 0;
int ret = -EINVAL;
if (vgpu->failsafe) {
failsafe_emulate_mmio_rw(vgpu, pa, p_data, bytes, true);
return 0;
@ -166,8 +165,7 @@ int intel_vgpu_emulate_mmio_read(struct intel_vgpu *vgpu, uint64_t pa,
if (vgpu_gpa_is_aperture(vgpu, pa)) {
ret = vgpu_aperture_rw(vgpu, pa, p_data, bytes, true);
mutex_unlock(&gvt->lock);
return ret;
goto out;
}
if (atomic_read(&vgpu->gtt.n_tracked_guest_page)) {
@ -183,8 +181,7 @@ int intel_vgpu_emulate_mmio_read(struct intel_vgpu *vgpu, uint64_t pa,
ret, t->gfn, pa, *(u32 *)p_data,
bytes);
}
mutex_unlock(&gvt->lock);
return ret;
goto out;
}
}
@ -205,14 +202,12 @@ int intel_vgpu_emulate_mmio_read(struct intel_vgpu *vgpu, uint64_t pa,
p_data, bytes);
if (ret)
goto err;
mutex_unlock(&gvt->lock);
return ret;
goto out;
}
if (WARN_ON_ONCE(!reg_is_mmio(gvt, offset))) {
ret = intel_gvt_hypervisor_read_gpa(vgpu, pa, p_data, bytes);
mutex_unlock(&gvt->lock);
return ret;
goto out;
}
if (WARN_ON(!reg_is_mmio(gvt, offset + bytes - 1)))
@ -228,11 +223,13 @@ int intel_vgpu_emulate_mmio_read(struct intel_vgpu *vgpu, uint64_t pa,
goto err;
intel_gvt_mmio_set_accessed(gvt, offset);
mutex_unlock(&gvt->lock);
return 0;
ret = 0;
goto out;
err:
gvt_vgpu_err("fail to emulate MMIO read %08x len %d\n",
offset, bytes);
out:
mutex_unlock(&gvt->lock);
return ret;
}
@ -263,8 +260,7 @@ int intel_vgpu_emulate_mmio_write(struct intel_vgpu *vgpu, uint64_t pa,
if (vgpu_gpa_is_aperture(vgpu, pa)) {
ret = vgpu_aperture_rw(vgpu, pa, p_data, bytes, false);
mutex_unlock(&gvt->lock);
return ret;
goto out;
}
if (atomic_read(&vgpu->gtt.n_tracked_guest_page)) {
@ -280,8 +276,7 @@ int intel_vgpu_emulate_mmio_write(struct intel_vgpu *vgpu, uint64_t pa,
ret, t->gfn, pa,
*(u32 *)p_data, bytes);
}
mutex_unlock(&gvt->lock);
return ret;
goto out;
}
}
@ -302,14 +297,12 @@ int intel_vgpu_emulate_mmio_write(struct intel_vgpu *vgpu, uint64_t pa,
p_data, bytes);
if (ret)
goto err;
mutex_unlock(&gvt->lock);
return ret;
goto out;
}
if (WARN_ON_ONCE(!reg_is_mmio(gvt, offset))) {
ret = intel_gvt_hypervisor_write_gpa(vgpu, pa, p_data, bytes);
mutex_unlock(&gvt->lock);
return ret;
goto out;
}
ret = intel_vgpu_mmio_reg_rw(vgpu, offset, p_data, bytes, false);
@ -317,11 +310,12 @@ int intel_vgpu_emulate_mmio_write(struct intel_vgpu *vgpu, uint64_t pa,
goto err;
intel_gvt_mmio_set_accessed(gvt, offset);
mutex_unlock(&gvt->lock);
return 0;
ret = 0;
goto out;
err:
gvt_vgpu_err("fail to emulate MMIO write %08x len %d\n", offset,
bytes);
out:
mutex_unlock(&gvt->lock);
return ret;
}

248
drivers/gpu/drm/i915/gvt/render.c → drivers/gpu/drm/i915/gvt/mmio_context.c
View File

@ -37,108 +37,116 @@
#include "gvt.h"
#include "trace.h"
struct render_mmio {
int ring_id;
i915_reg_t reg;
u32 mask;
bool in_context;
u32 value;
/**
* Defined in Intel Open Source PRM.
* Ref: https://01.org/linuxgraphics/documentation/hardware-specification-prms
*/
#define TRVATTL3PTRDW(i) _MMIO(0x4de0 + (i)*4)
#define TRNULLDETCT _MMIO(0x4de8)
#define TRINVTILEDETCT _MMIO(0x4dec)
#define TRVADR _MMIO(0x4df0)
#define TRTTE _MMIO(0x4df4)
#define RING_EXCC(base) _MMIO((base) + 0x28)
#define RING_GFX_MODE(base) _MMIO((base) + 0x29c)
#define VF_GUARDBAND _MMIO(0x83a4)
/* Raw offset is appened to each line for convenience. */
static struct engine_mmio gen8_engine_mmio_list[] __cacheline_aligned = {
{RCS, GFX_MODE_GEN7, 0xffff, false}, /* 0x229c */
{RCS, GEN9_CTX_PREEMPT_REG, 0x0, false}, /* 0x2248 */
{RCS, HWSTAM, 0x0, false}, /* 0x2098 */
{RCS, INSTPM, 0xffff, true}, /* 0x20c0 */
{RCS, RING_FORCE_TO_NONPRIV(RENDER_RING_BASE, 0), 0, false}, /* 0x24d0 */
{RCS, RING_FORCE_TO_NONPRIV(RENDER_RING_BASE, 1), 0, false}, /* 0x24d4 */
{RCS, RING_FORCE_TO_NONPRIV(RENDER_RING_BASE, 2), 0, false}, /* 0x24d8 */
{RCS, RING_FORCE_TO_NONPRIV(RENDER_RING_BASE, 3), 0, false}, /* 0x24dc */
{RCS, RING_FORCE_TO_NONPRIV(RENDER_RING_BASE, 4), 0, false}, /* 0x24e0 */
{RCS, RING_FORCE_TO_NONPRIV(RENDER_RING_BASE, 5), 0, false}, /* 0x24e4 */
{RCS, RING_FORCE_TO_NONPRIV(RENDER_RING_BASE, 6), 0, false}, /* 0x24e8 */
{RCS, RING_FORCE_TO_NONPRIV(RENDER_RING_BASE, 7), 0, false}, /* 0x24ec */
{RCS, RING_FORCE_TO_NONPRIV(RENDER_RING_BASE, 8), 0, false}, /* 0x24f0 */
{RCS, RING_FORCE_TO_NONPRIV(RENDER_RING_BASE, 9), 0, false}, /* 0x24f4 */
{RCS, RING_FORCE_TO_NONPRIV(RENDER_RING_BASE, 10), 0, false}, /* 0x24f8 */
{RCS, RING_FORCE_TO_NONPRIV(RENDER_RING_BASE, 11), 0, false}, /* 0x24fc */
{RCS, CACHE_MODE_1, 0xffff, true}, /* 0x7004 */
{RCS, GEN7_GT_MODE, 0xffff, true}, /* 0x7008 */
{RCS, CACHE_MODE_0_GEN7, 0xffff, true}, /* 0x7000 */
{RCS, GEN7_COMMON_SLICE_CHICKEN1, 0xffff, true}, /* 0x7010 */
{RCS, HDC_CHICKEN0, 0xffff, true}, /* 0x7300 */
{RCS, VF_GUARDBAND, 0xffff, true}, /* 0x83a4 */
{BCS, RING_GFX_MODE(BLT_RING_BASE), 0xffff, false}, /* 0x2229c */
{BCS, RING_MI_MODE(BLT_RING_BASE), 0xffff, false}, /* 0x2209c */
{BCS, RING_INSTPM(BLT_RING_BASE), 0xffff, false}, /* 0x220c0 */
{BCS, RING_HWSTAM(BLT_RING_BASE), 0x0, false}, /* 0x22098 */
{BCS, RING_EXCC(BLT_RING_BASE), 0x0, false}, /* 0x22028 */
{ /* Terminated */ }
};
static struct render_mmio gen8_render_mmio_list[] __cacheline_aligned = {
{RCS, _MMIO(0x229c), 0xffff, false},
{RCS, _MMIO(0x2248), 0x0, false},
{RCS, _MMIO(0x2098), 0x0, false},
{RCS, _MMIO(0x20c0), 0xffff, true},
{RCS, _MMIO(0x24d0), 0, false},
{RCS, _MMIO(0x24d4), 0, false},
{RCS, _MMIO(0x24d8), 0, false},
{RCS, _MMIO(0x24dc), 0, false},
{RCS, _MMIO(0x24e0), 0, false},
{RCS, _MMIO(0x24e4), 0, false},
{RCS, _MMIO(0x24e8), 0, false},
{RCS, _MMIO(0x24ec), 0, false},
{RCS, _MMIO(0x24f0), 0, false},
{RCS, _MMIO(0x24f4), 0, false},
{RCS, _MMIO(0x24f8), 0, false},
{RCS, _MMIO(0x24fc), 0, false},
{RCS, _MMIO(0x7004), 0xffff, true},
{RCS, _MMIO(0x7008), 0xffff, true},
{RCS, _MMIO(0x7000), 0xffff, true},
{RCS, _MMIO(0x7010), 0xffff, true},
{RCS, _MMIO(0x7300), 0xffff, true},
{RCS, _MMIO(0x83a4), 0xffff, true},
static struct engine_mmio gen9_engine_mmio_list[] __cacheline_aligned = {
{RCS, GFX_MODE_GEN7, 0xffff, false}, /* 0x229c */
{RCS, GEN9_CTX_PREEMPT_REG, 0x0, false}, /* 0x2248 */
{RCS, HWSTAM, 0x0, false}, /* 0x2098 */
{RCS, INSTPM, 0xffff, true}, /* 0x20c0 */
{RCS, RING_FORCE_TO_NONPRIV(RENDER_RING_BASE, 0), 0, false}, /* 0x24d0 */
{RCS, RING_FORCE_TO_NONPRIV(RENDER_RING_BASE, 1), 0, false}, /* 0x24d4 */
{RCS, RING_FORCE_TO_NONPRIV(RENDER_RING_BASE, 2), 0, false}, /* 0x24d8 */
{RCS, RING_FORCE_TO_NONPRIV(RENDER_RING_BASE, 3), 0, false}, /* 0x24dc */
{RCS, RING_FORCE_TO_NONPRIV(RENDER_RING_BASE, 4), 0, false}, /* 0x24e0 */
{RCS, RING_FORCE_TO_NONPRIV(RENDER_RING_BASE, 5), 0, false}, /* 0x24e4 */
{RCS, RING_FORCE_TO_NONPRIV(RENDER_RING_BASE, 6), 0, false}, /* 0x24e8 */
{RCS, RING_FORCE_TO_NONPRIV(RENDER_RING_BASE, 7), 0, false}, /* 0x24ec */
{RCS, RING_FORCE_TO_NONPRIV(RENDER_RING_BASE, 8), 0, false}, /* 0x24f0 */
{RCS, RING_FORCE_TO_NONPRIV(RENDER_RING_BASE, 9), 0, false}, /* 0x24f4 */
{RCS, RING_FORCE_TO_NONPRIV(RENDER_RING_BASE, 10), 0, false}, /* 0x24f8 */
{RCS, RING_FORCE_TO_NONPRIV(RENDER_RING_BASE, 11), 0, false}, /* 0x24fc */
{RCS, CACHE_MODE_1, 0xffff, true}, /* 0x7004 */
{RCS, GEN7_GT_MODE, 0xffff, true}, /* 0x7008 */
{RCS, CACHE_MODE_0_GEN7, 0xffff, true}, /* 0x7000 */
{RCS, GEN7_COMMON_SLICE_CHICKEN1, 0xffff, true}, /* 0x7010 */
{RCS, HDC_CHICKEN0, 0xffff, true}, /* 0x7300 */
{RCS, VF_GUARDBAND, 0xffff, true}, /* 0x83a4 */
{BCS, _MMIO(0x2229c), 0xffff, false},
{BCS, _MMIO(0x2209c), 0xffff, false},
{BCS, _MMIO(0x220c0), 0xffff, false},
{BCS, _MMIO(0x22098), 0x0, false},
{BCS, _MMIO(0x22028), 0x0, false},
};
{RCS, GEN8_PRIVATE_PAT_LO, 0, false}, /* 0x40e0 */
{RCS, GEN8_PRIVATE_PAT_HI, 0, false}, /* 0x40e4 */
{RCS, GEN8_CS_CHICKEN1, 0xffff, true}, /* 0x2580 */
{RCS, COMMON_SLICE_CHICKEN2, 0xffff, true}, /* 0x7014 */
{RCS, GEN9_CS_DEBUG_MODE1, 0xffff, false}, /* 0x20ec */
{RCS, GEN8_L3SQCREG4, 0, false}, /* 0xb118 */
{RCS, GEN7_HALF_SLICE_CHICKEN1, 0xffff, true}, /* 0xe100 */
{RCS, HALF_SLICE_CHICKEN2, 0xffff, true}, /* 0xe180 */
{RCS, HALF_SLICE_CHICKEN3, 0xffff, true}, /* 0xe184 */
{RCS, GEN9_HALF_SLICE_CHICKEN5, 0xffff, true}, /* 0xe188 */
{RCS, GEN9_HALF_SLICE_CHICKEN7, 0xffff, true}, /* 0xe194 */
{RCS, TRVATTL3PTRDW(0), 0, false}, /* 0x4de0 */
{RCS, TRVATTL3PTRDW(1), 0, false}, /* 0x4de4 */
{RCS, TRNULLDETCT, 0, false}, /* 0x4de8 */
{RCS, TRINVTILEDETCT, 0, false}, /* 0x4dec */
{RCS, TRVADR, 0, false}, /* 0x4df0 */
{RCS, TRTTE, 0, false}, /* 0x4df4 */
static struct render_mmio gen9_render_mmio_list[] __cacheline_aligned = {
{RCS, _MMIO(0x229c), 0xffff, false},
{RCS, _MMIO(0x2248), 0x0, false},
{RCS, _MMIO(0x2098), 0x0, false},
{RCS, _MMIO(0x20c0), 0xffff, true},
{RCS, _MMIO(0x24d0), 0, false},
{RCS, _MMIO(0x24d4), 0, false},
{RCS, _MMIO(0x24d8), 0, false},
{RCS, _MMIO(0x24dc), 0, false},
{RCS, _MMIO(0x24e0), 0, false},
{RCS, _MMIO(0x24e4), 0, false},
{RCS, _MMIO(0x24e8), 0, false},
{RCS, _MMIO(0x24ec), 0, false},
{RCS, _MMIO(0x24f0), 0, false},
{RCS, _MMIO(0x24f4), 0, false},
{RCS, _MMIO(0x24f8), 0, false},
{RCS, _MMIO(0x24fc), 0, false},
{RCS, _MMIO(0x7004), 0xffff, true},
{RCS, _MMIO(0x7008), 0xffff, true},
{RCS, _MMIO(0x7000), 0xffff, true},
{RCS, _MMIO(0x7010), 0xffff, true},
{RCS, _MMIO(0x7300), 0xffff, true},
{RCS, _MMIO(0x83a4), 0xffff, true},
{BCS, RING_GFX_MODE(BLT_RING_BASE), 0xffff, false}, /* 0x2229c */
{BCS, RING_MI_MODE(BLT_RING_BASE), 0xffff, false}, /* 0x2209c */
{BCS, RING_INSTPM(BLT_RING_BASE), 0xffff, false}, /* 0x220c0 */
{BCS, RING_HWSTAM(BLT_RING_BASE), 0x0, false}, /* 0x22098 */
{BCS, RING_EXCC(BLT_RING_BASE), 0x0, false}, /* 0x22028 */
{RCS, _MMIO(0x40e0), 0, false},
{RCS, _MMIO(0x40e4), 0, false},
{RCS, _MMIO(0x2580), 0xffff, true},
{RCS, _MMIO(0x7014), 0xffff, true},
{RCS, _MMIO(0x20ec), 0xffff, false},
{RCS, _MMIO(0xb118), 0, false},
{RCS, _MMIO(0xe100), 0xffff, true},
{RCS, _MMIO(0xe180), 0xffff, true},
{RCS, _MMIO(0xe184), 0xffff, true},
{RCS, _MMIO(0xe188), 0xffff, true},
{RCS, _MMIO(0xe194), 0xffff, true},
{RCS, _MMIO(0x4de0), 0, false},
{RCS, _MMIO(0x4de4), 0, false},
{RCS, _MMIO(0x4de8), 0, false},
{RCS, _MMIO(0x4dec), 0, false},
{RCS, _MMIO(0x4df0), 0, false},
{RCS, _MMIO(0x4df4), 0, false},
{VCS2, RING_EXCC(GEN8_BSD2_RING_BASE), 0xffff, false}, /* 0x1c028 */
{BCS, _MMIO(0x2229c), 0xffff, false},
{BCS, _MMIO(0x2209c), 0xffff, false},
{BCS, _MMIO(0x220c0), 0xffff, false},
{BCS, _MMIO(0x22098), 0x0, false},
{BCS, _MMIO(0x22028), 0x0, false},
{VECS, RING_EXCC(VEBOX_RING_BASE), 0xffff, false}, /* 0x1a028 */
{VCS2, _MMIO(0x1c028), 0xffff, false},
{RCS, GEN8_HDC_CHICKEN1, 0xffff, true}, /* 0x7304 */
{RCS, GEN9_CTX_PREEMPT_REG, 0x0, false}, /* 0x2248 */
{RCS, GEN7_UCGCTL4, 0x0, false}, /* 0x940c */
{RCS, GAMT_CHKN_BIT_REG, 0x0, false}, /* 0x4ab8 */
{VECS, _MMIO(0x1a028), 0xffff, false},
{RCS, GEN9_GAMT_ECO_REG_RW_IA, 0x0, false}, /* 0x4ab0 */
{RCS, GEN9_CSFE_CHICKEN1_RCS, 0x0, false}, /* 0x20d4 */
{RCS, _MMIO(0x7304), 0xffff, true},
{RCS, _MMIO(0x2248), 0x0, false},
{RCS, _MMIO(0x940c), 0x0, false},
{RCS, _MMIO(0x4ab8), 0x0, false},
{RCS, _MMIO(0x4ab0), 0x0, false},
{RCS, _MMIO(0x20d4), 0x0, false},
{RCS, _MMIO(0xb004), 0x0, false},
{RCS, _MMIO(0x20a0), 0x0, false},
{RCS, _MMIO(0x20e4), 0xffff, false},
{RCS, GEN8_GARBCNTL, 0x0, false}, /* 0xb004 */
{RCS, GEN7_FF_THREAD_MODE, 0x0, false}, /* 0x20a0 */
{RCS, FF_SLICE_CS_CHICKEN2, 0xffff, false}, /* 0x20e4 */
{ /* Terminated */ }
};
static u32 gen9_render_mocs[I915_NUM_ENGINES][64];
@ -267,22 +275,14 @@ static void switch_mmio_to_vgpu(struct intel_vgpu *vgpu, int ring_id)
u32 ctx_ctrl = reg_state[CTX_CONTEXT_CONTROL_VAL];
u32 inhibit_mask =
_MASKED_BIT_ENABLE(CTX_CTRL_ENGINE_CTX_RESTORE_INHIBIT);
i915_reg_t last_reg = _MMIO(0);
struct render_mmio *mmio;
struct engine_mmio *mmio;
u32 v;
int i, array_size;
if (IS_SKYLAKE(vgpu->gvt->dev_priv)
|| IS_KABYLAKE(vgpu->gvt->dev_priv)) {
mmio = gen9_render_mmio_list;
array_size = ARRAY_SIZE(gen9_render_mmio_list);
if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv))
load_mocs(vgpu, ring_id);
} else {
mmio = gen8_render_mmio_list;
array_size = ARRAY_SIZE(gen8_render_mmio_list);
}
for (i = 0; i < array_size; i++, mmio++) {
mmio = vgpu->gvt->engine_mmio_list;
while (i915_mmio_reg_offset((mmio++)->reg)) {
if (mmio->ring_id != ring_id)
continue;
@ -303,17 +303,12 @@ static void switch_mmio_to_vgpu(struct intel_vgpu *vgpu, int ring_id)
v = vgpu_vreg(vgpu, mmio->reg);
I915_WRITE_FW(mmio->reg, v);
last_reg = mmio->reg;
trace_render_mmio(vgpu->id, "load",
i915_mmio_reg_offset(mmio->reg),
mmio->value, v);
}
/* Make sure the swiched MMIOs has taken effect. */
if (likely(INTEL_GVT_MMIO_OFFSET(last_reg)))
I915_READ_FW(last_reg);
handle_tlb_pending_event(vgpu, ring_id);
}
@ -321,21 +316,14 @@ static void switch_mmio_to_vgpu(struct intel_vgpu *vgpu, int ring_id)
static void switch_mmio_to_host(struct intel_vgpu *vgpu, int ring_id)
{
struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv;
struct render_mmio *mmio;
i915_reg_t last_reg = _MMIO(0);
struct engine_mmio *mmio;
u32 v;
int i, array_size;
if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) {
mmio = gen9_render_mmio_list;
array_size = ARRAY_SIZE(gen9_render_mmio_list);
if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv))
restore_mocs(vgpu, ring_id);
} else {
mmio = gen8_render_mmio_list;
array_size = ARRAY_SIZE(gen8_render_mmio_list);
}
for (i = 0; i < array_size; i++, mmio++) {
mmio = vgpu->gvt->engine_mmio_list;
while (i915_mmio_reg_offset((mmio++)->reg)) {
if (mmio->ring_id != ring_id)
continue;
@ -351,16 +339,11 @@ static void switch_mmio_to_host(struct intel_vgpu *vgpu, int ring_id)
continue;
I915_WRITE_FW(mmio->reg, v);
last_reg = mmio->reg;
trace_render_mmio(vgpu->id, "restore",
i915_mmio_reg_offset(mmio->reg),
mmio->value, v);
}
/* Make sure the swiched MMIOs has taken effect. */
if (likely(INTEL_GVT_MMIO_OFFSET(last_reg)))
I915_READ_FW(last_reg);
}
/**
@ -404,3 +387,16 @@ void intel_gvt_switch_mmio(struct intel_vgpu *pre,
intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
}
/**
* intel_gvt_init_engine_mmio_context - Initiate the engine mmio list
* @gvt: GVT device
*
*/
void intel_gvt_init_engine_mmio_context(struct intel_gvt *gvt)
{
if (IS_SKYLAKE(gvt->dev_priv) || IS_KABYLAKE(gvt->dev_priv))
gvt->engine_mmio_list = gen9_engine_mmio_list;
else
gvt->engine_mmio_list = gen8_engine_mmio_list;
}

9
drivers/gpu/drm/i915/gvt/render.h → drivers/gpu/drm/i915/gvt/mmio_context.h
View File

@ -36,8 +36,17 @@
#ifndef __GVT_RENDER_H__
#define __GVT_RENDER_H__
struct engine_mmio {
int ring_id;
i915_reg_t reg;
u32 mask;
bool in_context;
u32 value;
};
void intel_gvt_switch_mmio(struct intel_vgpu *pre,
struct intel_vgpu *next, int ring_id);
void intel_gvt_init_engine_mmio_context(struct intel_gvt *gvt);
#endif

45
drivers/gpu/drm/i915/gvt/mpt.h
View File

@ -294,4 +294,49 @@ static inline int intel_gvt_hypervisor_set_trap_area(
return intel_gvt_host.mpt->set_trap_area(vgpu->handle, start, end, map);
}
/**
* intel_gvt_hypervisor_set_opregion - Set opregion for guest
* @vgpu: a vGPU
*
* Returns:
* Zero on success, negative error code if failed.
*/
static inline int intel_gvt_hypervisor_set_opregion(struct intel_vgpu *vgpu)
{
if (!intel_gvt_host.mpt->set_opregion)
return 0;
return intel_gvt_host.mpt->set_opregion(vgpu);
}
/**
* intel_gvt_hypervisor_get_vfio_device - increase vfio device ref count
* @vgpu: a vGPU
*
* Returns:
* Zero on success, negative error code if failed.
*/
static inline int intel_gvt_hypervisor_get_vfio_device(struct intel_vgpu *vgpu)
{
if (!intel_gvt_host.mpt->get_vfio_device)
return 0;
return intel_gvt_host.mpt->get_vfio_device(vgpu);
}
/**
* intel_gvt_hypervisor_put_vfio_device - decrease vfio device ref count
* @vgpu: a vGPU
*
* Returns:
* Zero on success, negative error code if failed.
*/
static inline void intel_gvt_hypervisor_put_vfio_device(struct intel_vgpu *vgpu)
{
if (!intel_gvt_host.mpt->put_vfio_device)
return;
intel_gvt_host.mpt->put_vfio_device(vgpu);
}
#endif /* _GVT_MPT_H_ */

149
drivers/gpu/drm/i915/gvt/opregion.c
View File

@ -213,11 +213,20 @@ static void virt_vbt_generation(struct vbt *v)
v->driver_features.lvds_config = BDB_DRIVER_FEATURE_NO_LVDS;
}
static int alloc_and_init_virt_opregion(struct intel_vgpu *vgpu)
/**
* intel_vgpu_init_opregion - initialize the stuff used to emulate opregion
* @vgpu: a vGPU
* @gpa: guest physical address of opregion
*
* Returns:
* Zero on success, negative error code if failed.
*/
int intel_vgpu_init_opregion(struct intel_vgpu *vgpu)
{
u8 *buf;
struct opregion_header *header;
struct vbt v;
const char opregion_signature[16] = OPREGION_SIGNATURE;
gvt_dbg_core("init vgpu%d opregion\n", vgpu->id);
vgpu_opregion(vgpu)->va = (void *)__get_free_pages(GFP_KERNEL |
@ -231,8 +240,8 @@ static int alloc_and_init_virt_opregion(struct intel_vgpu *vgpu)
/* emulated opregion with VBT mailbox only */
buf = (u8 *)vgpu_opregion(vgpu)->va;
header = (struct opregion_header *)buf;
memcpy(header->signature, OPREGION_SIGNATURE,
sizeof(OPREGION_SIGNATURE));
memcpy(header->signature, opregion_signature,
sizeof(opregion_signature));
header->size = 0x8;
header->opregion_ver = 0x02000000;
header->mboxes = MBOX_VBT;
@ -250,25 +259,6 @@ static int alloc_and_init_virt_opregion(struct intel_vgpu *vgpu)
return 0;
}
static int init_vgpu_opregion(struct intel_vgpu *vgpu, u32 gpa)
{
int i, ret;
if (WARN((vgpu_opregion(vgpu)->va),
"vgpu%d: opregion has been initialized already.\n",
vgpu->id))
return -EINVAL;
ret = alloc_and_init_virt_opregion(vgpu);
if (ret < 0)
return ret;
for (i = 0; i < INTEL_GVT_OPREGION_PAGES; i++)
vgpu_opregion(vgpu)->gfn[i] = (gpa >> PAGE_SHIFT) + i;
return 0;
}
static int map_vgpu_opregion(struct intel_vgpu *vgpu, bool map)
{
u64 mfn;
@ -290,9 +280,62 @@ static int map_vgpu_opregion(struct intel_vgpu *vgpu, bool map)
return ret;
}
}
vgpu_opregion(vgpu)->mapped = map;
return 0;
}
/**
* intel_vgpu_opregion_base_write_handler - Opregion base register write handler
*
* @vgpu: a vGPU
* @gpa: guest physical address of opregion
*
* Returns:
* Zero on success, negative error code if failed.
*/
int intel_vgpu_opregion_base_write_handler(struct intel_vgpu *vgpu, u32 gpa)
{
int i, ret = 0;
unsigned long pfn;
gvt_dbg_core("emulate opregion from kernel\n");
switch (intel_gvt_host.hypervisor_type) {
case INTEL_GVT_HYPERVISOR_KVM:
pfn = intel_gvt_hypervisor_gfn_to_mfn(vgpu, gpa >> PAGE_SHIFT);
vgpu_opregion(vgpu)->va_gopregion = memremap(pfn << PAGE_SHIFT,
INTEL_GVT_OPREGION_SIZE,
MEMREMAP_WB);
if (!vgpu_opregion(vgpu)->va_gopregion) {
gvt_vgpu_err("failed to map guest opregion\n");
ret = -EFAULT;
}
vgpu_opregion(vgpu)->mapped = true;
break;
case INTEL_GVT_HYPERVISOR_XEN:
/**
* Wins guest on Xengt will write this register twice: xen
* hvmloader and windows graphic driver.
*/
if (vgpu_opregion(vgpu)->mapped)
map_vgpu_opregion(vgpu, false);
for (i = 0; i < INTEL_GVT_OPREGION_PAGES; i++)
vgpu_opregion(vgpu)->gfn[i] = (gpa >> PAGE_SHIFT) + i;
ret = map_vgpu_opregion(vgpu, true);
break;
default:
ret = -EINVAL;
gvt_vgpu_err("not supported hypervisor\n");
}
return ret;
}
/**
* intel_vgpu_clean_opregion - clean the stuff used to emulate opregion
* @vgpu: a vGPU
@ -306,42 +349,21 @@ void intel_vgpu_clean_opregion(struct intel_vgpu *vgpu)
return;
if (intel_gvt_host.hypervisor_type == INTEL_GVT_HYPERVISOR_XEN) {
map_vgpu_opregion(vgpu, false);
free_pages((unsigned long)vgpu_opregion(vgpu)->va,
get_order(INTEL_GVT_OPREGION_SIZE));
vgpu_opregion(vgpu)->va = NULL;
if (vgpu_opregion(vgpu)->mapped)
map_vgpu_opregion(vgpu, false);
} else if (intel_gvt_host.hypervisor_type == INTEL_GVT_HYPERVISOR_KVM) {
if (vgpu_opregion(vgpu)->mapped) {
memunmap(vgpu_opregion(vgpu)->va_gopregion);
vgpu_opregion(vgpu)->va_gopregion = NULL;
}
}
free_pages((unsigned long)vgpu_opregion(vgpu)->va,
get_order(INTEL_GVT_OPREGION_SIZE));
vgpu_opregion(vgpu)->va = NULL;
}
/**
* intel_vgpu_init_opregion - initialize the stuff used to emulate opregion
* @vgpu: a vGPU
* @gpa: guest physical address of opregion
*
* Returns:
* Zero on success, negative error code if failed.
*/
int intel_vgpu_init_opregion(struct intel_vgpu *vgpu, u32 gpa)
{
int ret;
gvt_dbg_core("vgpu%d: init vgpu opregion\n", vgpu->id);
if (intel_gvt_host.hypervisor_type == INTEL_GVT_HYPERVISOR_XEN) {
gvt_dbg_core("emulate opregion from kernel\n");
ret = init_vgpu_opregion(vgpu, gpa);
if (ret)
return ret;
ret = map_vgpu_opregion(vgpu, true);
if (ret)
return ret;
}
return 0;
}
#define GVT_OPREGION_FUNC(scic) \
({ \
@ -461,8 +483,21 @@ int intel_vgpu_emulate_opregion_request(struct intel_vgpu *vgpu, u32 swsci)
u32 *scic, *parm;
u32 func, subfunc;
scic = vgpu_opregion(vgpu)->va + INTEL_GVT_OPREGION_SCIC;
parm = vgpu_opregion(vgpu)->va + INTEL_GVT_OPREGION_PARM;
switch (intel_gvt_host.hypervisor_type) {
case INTEL_GVT_HYPERVISOR_XEN:
scic = vgpu_opregion(vgpu)->va + INTEL_GVT_OPREGION_SCIC;
parm = vgpu_opregion(vgpu)->va + INTEL_GVT_OPREGION_PARM;
break;
case INTEL_GVT_HYPERVISOR_KVM:
scic = vgpu_opregion(vgpu)->va_gopregion +
INTEL_GVT_OPREGION_SCIC;
parm = vgpu_opregion(vgpu)->va_gopregion +
INTEL_GVT_OPREGION_PARM;
break;
default:
gvt_vgpu_err("not supported hypervisor\n");
return -EINVAL;
}
if (!(swsci & SWSCI_SCI_SELECT)) {
gvt_vgpu_err("requesting SMI service\n");

5
drivers/gpu/drm/i915/gvt/sched_policy.c
View File

@ -372,6 +372,11 @@ void intel_vgpu_start_schedule(struct intel_vgpu *vgpu)
vgpu->gvt->scheduler.sched_ops->start_schedule(vgpu);
}
void intel_gvt_kick_schedule(struct intel_gvt *gvt)
{
intel_gvt_request_service(gvt, INTEL_GVT_REQUEST_EVENT_SCHED);
}
void intel_vgpu_stop_schedule(struct intel_vgpu *vgpu)
{
struct intel_gvt_workload_scheduler *scheduler =

2
drivers/gpu/drm/i915/gvt/sched_policy.h
View File

@ -57,4 +57,6 @@ void intel_vgpu_start_schedule(struct intel_vgpu *vgpu);
void intel_vgpu_stop_schedule(struct intel_vgpu *vgpu);
void intel_gvt_kick_schedule(struct intel_gvt *gvt);
#endif

17
drivers/gpu/drm/i915/gvt/scheduler.c
View File

@ -248,7 +248,7 @@ static int copy_workload_to_ring_buffer(struct intel_vgpu_workload *workload)
return 0;
}
void release_shadow_wa_ctx(struct intel_shadow_wa_ctx *wa_ctx)
static void release_shadow_wa_ctx(struct intel_shadow_wa_ctx *wa_ctx)
{
if (!wa_ctx->indirect_ctx.obj)
return;
@ -1039,6 +1039,9 @@ int intel_vgpu_setup_submission(struct intel_vgpu *vgpu)
if (IS_ERR(s->shadow_ctx))
return PTR_ERR(s->shadow_ctx);
if (HAS_LOGICAL_RING_PREEMPTION(vgpu->gvt->dev_priv))
s->shadow_ctx->priority = INT_MAX;
bitmap_zero(s->shadow_ctx_desc_updated, I915_NUM_ENGINES);
s->workloads = kmem_cache_create("gvt-g_vgpu_workload",
@ -1331,3 +1334,15 @@ intel_vgpu_create_workload(struct intel_vgpu *vgpu, int ring_id,
return workload;
}
/**
* intel_vgpu_queue_workload - Qeue a vGPU workload
* @workload: the workload to queue in
*/
void intel_vgpu_queue_workload(struct intel_vgpu_workload *workload)
{
list_add_tail(&workload->list,
workload_q_head(workload->vgpu, workload->ring_id));
intel_gvt_kick_schedule(workload->vgpu->gvt);
wake_up(&workload->vgpu->gvt->scheduler.waitq[workload->ring_id]);
}

7
drivers/gpu/drm/i915/gvt/scheduler.h
View File

@ -125,12 +125,7 @@ struct intel_vgpu_shadow_bb {
#define workload_q_head(vgpu, ring_id) \
(&(vgpu->submission.workload_q_head[ring_id]))
#define queue_workload(workload) do { \
list_add_tail(&workload->list, \
workload_q_head(workload->vgpu, workload->ring_id)); \
wake_up(&workload->vgpu->gvt-> \
scheduler.waitq[workload->ring_id]); \
} while (0)
void intel_vgpu_queue_workload(struct intel_vgpu_workload *workload);
int intel_gvt_init_workload_scheduler(struct intel_gvt *gvt);

17
drivers/gpu/drm/i915/gvt/vgpu.c
View File

@ -236,6 +236,7 @@ void intel_gvt_deactivate_vgpu(struct intel_vgpu *vgpu)
}
intel_vgpu_stop_schedule(vgpu);
intel_vgpu_dmabuf_cleanup(vgpu);
mutex_unlock(&gvt->lock);
}
@ -265,6 +266,7 @@ void intel_gvt_destroy_vgpu(struct intel_vgpu *vgpu)
intel_gvt_hypervisor_detach_vgpu(vgpu);
intel_vgpu_free_resource(vgpu);
intel_vgpu_clean_mmio(vgpu);
intel_vgpu_dmabuf_cleanup(vgpu);
vfree(vgpu);
intel_gvt_update_vgpu_types(gvt);
@ -349,7 +351,8 @@ static struct intel_vgpu *__intel_gvt_create_vgpu(struct intel_gvt *gvt,
vgpu->handle = param->handle;
vgpu->gvt = gvt;
vgpu->sched_ctl.weight = param->weight;
INIT_LIST_HEAD(&vgpu->dmabuf_obj_list_head);
idr_init(&vgpu->object_idr);
intel_vgpu_init_cfg_space(vgpu, param->primary);
ret = intel_vgpu_init_mmio(vgpu);
@ -370,10 +373,14 @@ static struct intel_vgpu *__intel_gvt_create_vgpu(struct intel_gvt *gvt,
if (ret)
goto out_detach_hypervisor_vgpu;
ret = intel_vgpu_init_display(vgpu, param->resolution);
ret = intel_vgpu_init_opregion(vgpu);
if (ret)
goto out_clean_gtt;
ret = intel_vgpu_init_display(vgpu, param->resolution);
if (ret)
goto out_clean_opregion;
ret = intel_vgpu_setup_submission(vgpu);
if (ret)
goto out_clean_display;
@ -386,6 +393,10 @@ static struct intel_vgpu *__intel_gvt_create_vgpu(struct intel_gvt *gvt,
if (ret)
goto out_clean_sched_policy;
ret = intel_gvt_hypervisor_set_opregion(vgpu);
if (ret)
goto out_clean_sched_policy;
mutex_unlock(&gvt->lock);
return vgpu;
@ -396,6 +407,8 @@ out_clean_submission:
intel_vgpu_clean_submission(vgpu);
out_clean_display:
intel_vgpu_clean_display(vgpu);
out_clean_opregion:
intel_vgpu_clean_opregion(vgpu);
out_clean_gtt:
intel_vgpu_clean_gtt(vgpu);
out_detach_hypervisor_vgpu:

48
drivers/gpu/drm/i915/i915_debugfs.c
View File

@ -111,8 +111,8 @@ static u64 i915_gem_obj_total_ggtt_size(struct drm_i915_gem_object *obj)
u64 size = 0;
struct i915_vma *vma;
list_for_each_entry(vma, &obj->vma_list, obj_link) {
if (i915_vma_is_ggtt(vma) && drm_mm_node_allocated(&vma->node))
for_each_ggtt_vma(vma, obj) {
if (drm_mm_node_allocated(&vma->node))
size += vma->node.size;
}
@ -522,8 +522,8 @@ static int i915_gem_object_info(struct seq_file *m, void *data)
seq_printf(m, "%u display objects (globally pinned), %llu bytes\n",
dpy_count, dpy_size);
seq_printf(m, "%llu [%llu] gtt total\n",
ggtt->base.total, ggtt->mappable_end);
seq_printf(m, "%llu [%pa] gtt total\n",
ggtt->base.total, &ggtt->mappable_end);
seq_printf(m, "Supported page sizes: %s\n",
stringify_page_sizes(INTEL_INFO(dev_priv)->page_sizes,
buf, sizeof(buf)));
@ -664,38 +664,6 @@ static int i915_gem_batch_pool_info(struct seq_file *m, void *data)
return 0;
}
static void i915_ring_seqno_info(struct seq_file *m,
struct intel_engine_cs *engine)
{
struct intel_breadcrumbs *b = &engine->breadcrumbs;
struct rb_node *rb;
seq_printf(m, "Current sequence (%s): %x\n",
engine->name, intel_engine_get_seqno(engine));
spin_lock_irq(&b->rb_lock);
for (rb = rb_first(&b->waiters); rb; rb = rb_next(rb)) {
struct intel_wait *w = rb_entry(rb, typeof(*w), node);
seq_printf(m, "Waiting (%s): %s [%d] on %x\n",
engine->name, w->tsk->comm, w->tsk->pid, w->seqno);
}
spin_unlock_irq(&b->rb_lock);
}
static int i915_gem_seqno_info(struct seq_file *m, void *data)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
struct intel_engine_cs *engine;
enum intel_engine_id id;
for_each_engine(engine, dev_priv, id)
i915_ring_seqno_info(m, engine);
return 0;
}
static int i915_interrupt_info(struct seq_file *m, void *data)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
@ -896,13 +864,12 @@ static int i915_interrupt_info(struct seq_file *m, void *data)
seq_printf(m, "Graphics Interrupt mask: %08x\n",
I915_READ(GTIMR));
}
for_each_engine(engine, dev_priv, id) {
if (INTEL_GEN(dev_priv) >= 6) {
if (INTEL_GEN(dev_priv) >= 6) {
for_each_engine(engine, dev_priv, id) {
seq_printf(m,
"Graphics Interrupt mask (%s): %08x\n",
engine->name, I915_READ_IMR(engine));
}
i915_ring_seqno_info(m, engine);
}
intel_runtime_pm_put(dev_priv);
@ -3213,7 +3180,7 @@ static int i915_engine_info(struct seq_file *m, void *unused)
p = drm_seq_file_printer(m);
for_each_engine(engine, dev_priv, id)
intel_engine_dump(engine, &p);
intel_engine_dump(engine, &p, "%s\n", engine->name);
intel_runtime_pm_put(dev_priv);
@ -4672,7 +4639,6 @@ static const struct drm_info_list i915_debugfs_list[] = {
{"i915_gem_objects", i915_gem_object_info, 0},
{"i915_gem_gtt", i915_gem_gtt_info, 0},
{"i915_gem_stolen", i915_gem_stolen_list_info },
{"i915_gem_seqno", i915_gem_seqno_info, 0},
{"i915_gem_fence_regs", i915_gem_fence_regs_info, 0},
{"i915_gem_interrupt", i915_interrupt_info, 0},
{"i915_gem_batch_pool", i915_gem_batch_pool_info, 0},

29
drivers/gpu/drm/i915/i915_drv.c
View File

@ -617,10 +617,12 @@ static void i915_gem_fini(struct drm_i915_private *dev_priv)
mutex_lock(&dev_priv->drm.struct_mutex);
intel_uc_fini_hw(dev_priv);
intel_uc_fini(dev_priv);
i915_gem_cleanup_engines(dev_priv);
i915_gem_contexts_fini(dev_priv);
mutex_unlock(&dev_priv->drm.struct_mutex);
intel_uc_fini_wq(dev_priv);
i915_gem_cleanup_userptr(dev_priv);
i915_gem_drain_freed_objects(dev_priv);
@ -726,7 +728,7 @@ static int i915_kick_out_firmware_fb(struct drm_i915_private *dev_priv)
if (!ap)
return -ENOMEM;
ap->ranges[0].base = ggtt->mappable_base;
ap->ranges[0].base = ggtt->gmadr.start;
ap->ranges[0].size = ggtt->mappable_end;
primary =
@ -1897,13 +1899,16 @@ void i915_reset(struct drm_i915_private *i915, unsigned int flags)
disable_irq(i915->drm.irq);
ret = i915_gem_reset_prepare(i915);
if (ret) {
DRM_ERROR("GPU recovery failed\n");
dev_err(i915->drm.dev, "GPU recovery failed\n");
intel_gpu_reset(i915, ALL_ENGINES);
goto error;
goto taint;
}
if (!intel_has_gpu_reset(i915)) {
DRM_DEBUG_DRIVER("GPU reset disabled\n");
if (i915_modparams.reset)
dev_err(i915->drm.dev, "GPU reset not supported\n");
else
DRM_DEBUG_DRIVER("GPU reset disabled\n");
goto error;
}
@ -1916,7 +1921,7 @@ void i915_reset(struct drm_i915_private *i915, unsigned int flags)
}
if (ret) {
dev_err(i915->drm.dev, "Failed to reset chip\n");
goto error;
goto taint;
}
i915_gem_reset(i915);
@ -1959,6 +1964,20 @@ wakeup:
wake_up_bit(&error->flags, I915_RESET_HANDOFF);
return;
taint:
/*
* History tells us that if we cannot reset the GPU now, we
* never will. This then impacts everything that is run
* subsequently. On failing the reset, we mark the driver
* as wedged, preventing further execution on the GPU.
* We also want to go one step further and add a taint to the
* kernel so that any subsequent faults can be traced back to
* this failure. This is important for CI, where if the
* GPU/driver fails we would like to reboot and restart testing
* rather than continue on into oblivion. For everyone else,
* the system should still plod along, but they have been warned!
*/
add_taint(TAINT_WARN, LOCKDEP_STILL_OK);
error:
i915_gem_set_wedged(i915);
i915_gem_retire_requests(i915);

53
drivers/gpu/drm/i915/i915_drv.h
View File

@ -80,8 +80,8 @@
#define DRIVER_NAME "i915"
#define DRIVER_DESC "Intel Graphics"
#define DRIVER_DATE "20171201"
#define DRIVER_TIMESTAMP 1512176839
#define DRIVER_DATE "20171214"
#define DRIVER_TIMESTAMP 1513282202
/* Use I915_STATE_WARN(x) and I915_STATE_WARN_ON() (rather than WARN() and
* WARN_ON()) for hw state sanity checks to check for unexpected conditions
@ -398,6 +398,7 @@ enum intel_display_power_domain {
POWER_DOMAIN_AUX_D,
POWER_DOMAIN_GMBUS,
POWER_DOMAIN_MODESET,
POWER_DOMAIN_GT_IRQ,
POWER_DOMAIN_INIT,
POWER_DOMAIN_NUM,
@ -1537,9 +1538,6 @@ struct i915_gem_mm {
*/
struct pagevec wc_stash;
/** Usable portion of the GTT for GEM */
dma_addr_t stolen_base; /* limited to low memory (32-bit) */
/**
* tmpfs instance used for shmem backed objects
*/
@ -1588,6 +1586,8 @@ struct drm_i915_error_state_buf {
loff_t pos;
};
#define I915_IDLE_ENGINES_TIMEOUT (200) /* in ms */
#define I915_RESET_TIMEOUT (10 * HZ) /* 10s */
#define I915_FENCE_TIMEOUT (10 * HZ) /* 10s */
@ -2253,6 +2253,30 @@ struct drm_i915_private {
const struct intel_device_info info;
/**
* Data Stolen Memory - aka "i915 stolen memory" gives us the start and
* end of stolen which we can optionally use to create GEM objects
* backed by stolen memory. Note that stolen_usable_size tells us
* exactly how much of this we are actually allowed to use, given that
* some portion of it is in fact reserved for use by hardware functions.
*/
struct resource dsm;
/**
* Reseved portion of Data Stolen Memory
*/
struct resource dsm_reserved;
/*
* Stolen memory is segmented in hardware with different portions
* offlimits to certain functions.
*
* The drm_mm is initialised to the total accessible range, as found
* from the PCI config. On Broadwell+, this is further restricted to
* avoid the first page! The upper end of stolen memory is reserved for
* hardware functions and similarly removed from the accessible range.
*/
resource_size_t stolen_usable_size; /* Total size minus reserved ranges */
void __iomem *regs;
struct intel_uncore uncore;
@ -3234,8 +3258,16 @@ intel_info(const struct drm_i915_private *dev_priv)
#define HAS_GUC_CT(dev_priv) ((dev_priv)->info.has_guc_ct)
#define HAS_GUC_UCODE(dev_priv) (HAS_GUC(dev_priv))
#define HAS_GUC_SCHED(dev_priv) (HAS_GUC(dev_priv))
/* For now, anything with a GuC has also HuC */
#define HAS_HUC(dev_priv) (HAS_GUC(dev_priv))
#define HAS_HUC_UCODE(dev_priv) (HAS_GUC(dev_priv))
/* Having a GuC is not the same as using a GuC */
#define USES_GUC(dev_priv) intel_uc_is_using_guc()
#define USES_GUC_SUBMISSION(dev_priv) intel_uc_is_using_guc_submission()
#define USES_HUC(dev_priv) intel_uc_is_using_huc()
#define HAS_RESOURCE_STREAMER(dev_priv) ((dev_priv)->info.has_resource_streamer)
#define HAS_POOLED_EU(dev_priv) ((dev_priv)->info.has_pooled_eu)
@ -3879,6 +3911,8 @@ int __must_check i915_gem_evict_for_node(struct i915_address_space *vm,
unsigned int flags);
int i915_gem_evict_vm(struct i915_address_space *vm);
void i915_gem_flush_ggtt_writes(struct drm_i915_private *dev_priv);
/* belongs in i915_gem_gtt.h */
static inline void i915_gem_chipset_flush(struct drm_i915_private *dev_priv)
{
@ -3900,12 +3934,13 @@ void i915_gem_stolen_remove_node(struct drm_i915_private *dev_priv,
int i915_gem_init_stolen(struct drm_i915_private *dev_priv);
void i915_gem_cleanup_stolen(struct drm_device *dev);
struct drm_i915_gem_object *
i915_gem_object_create_stolen(struct drm_i915_private *dev_priv, u32 size);
i915_gem_object_create_stolen(struct drm_i915_private *dev_priv,
resource_size_t size);
struct drm_i915_gem_object *
i915_gem_object_create_stolen_for_preallocated(struct drm_i915_private *dev_priv,
u32 stolen_offset,
u32 gtt_offset,
u32 size);
resource_size_t stolen_offset,
resource_size_t gtt_offset,
resource_size_t size);
/* i915_gem_internal.c */
struct drm_i915_gem_object *

200
drivers/gpu/drm/i915/i915_gem.c
View File

@ -330,17 +330,10 @@ int i915_gem_object_unbind(struct drm_i915_gem_object *obj)
* must wait for all rendering to complete to the object (as unbinding
* must anyway), and retire the requests.
*/
ret = i915_gem_object_wait(obj,
I915_WAIT_INTERRUPTIBLE |
I915_WAIT_LOCKED |
I915_WAIT_ALL,
MAX_SCHEDULE_TIMEOUT,
NULL);
ret = i915_gem_object_set_to_cpu_domain(obj, false);
if (ret)
return ret;
i915_gem_retire_requests(to_i915(obj->base.dev));
while ((vma = list_first_entry_or_null(&obj->vma_list,
struct i915_vma,
obj_link))) {
@ -673,17 +666,13 @@ fb_write_origin(struct drm_i915_gem_object *obj, unsigned int domain)
obj->frontbuffer_ggtt_origin : ORIGIN_CPU);
}
static void
flush_write_domain(struct drm_i915_gem_object *obj, unsigned int flush_domains)
void i915_gem_flush_ggtt_writes(struct drm_i915_private *dev_priv)
{
struct drm_i915_private *dev_priv = to_i915(obj->base.dev);
if (!(obj->base.write_domain & flush_domains))
return;
/* No actual flushing is required for the GTT write domain. Writes
* to it "immediately" go to main memory as far as we know, so there's
* no chipset flush. It also doesn't land in render cache.
/*
* No actual flushing is required for the GTT write domain for reads
* from the GTT domain. Writes to it "immediately" go to main memory
* as far as we know, so there's no chipset flush. It also doesn't
* land in the GPU render cache.
*
* However, we do have to enforce the order so that all writes through
* the GTT land before any writes to the device, such as updates to
@ -694,22 +683,43 @@ flush_write_domain(struct drm_i915_gem_object *obj, unsigned int flush_domains)
* timing. This issue has only been observed when switching quickly
* between GTT writes and CPU reads from inside the kernel on recent hw,
* and it appears to only affect discrete GTT blocks (i.e. on LLC
* system agents we cannot reproduce this behaviour).
* system agents we cannot reproduce this behaviour, until Cannonlake
* that was!).
*/
wmb();
intel_runtime_pm_get(dev_priv);
spin_lock_irq(&dev_priv->uncore.lock);
POSTING_READ_FW(RING_HEAD(RENDER_RING_BASE));
spin_unlock_irq(&dev_priv->uncore.lock);
intel_runtime_pm_put(dev_priv);
}
static void
flush_write_domain(struct drm_i915_gem_object *obj, unsigned int flush_domains)
{
struct drm_i915_private *dev_priv = to_i915(obj->base.dev);
struct i915_vma *vma;
if (!(obj->base.write_domain & flush_domains))
return;
switch (obj->base.write_domain) {
case I915_GEM_DOMAIN_GTT:
if (!HAS_LLC(dev_priv)) {
intel_runtime_pm_get(dev_priv);
spin_lock_irq(&dev_priv->uncore.lock);
POSTING_READ_FW(RING_HEAD(dev_priv->engine[RCS]->mmio_base));
spin_unlock_irq(&dev_priv->uncore.lock);
intel_runtime_pm_put(dev_priv);
}
i915_gem_flush_ggtt_writes(dev_priv);
intel_fb_obj_flush(obj,
fb_write_origin(obj, I915_GEM_DOMAIN_GTT));
for_each_ggtt_vma(vma, obj) {
if (vma->iomap)
continue;
i915_vma_unset_ggtt_write(vma);
}
break;
case I915_GEM_DOMAIN_CPU:
@ -1106,7 +1116,7 @@ i915_gem_gtt_pread(struct drm_i915_gem_object *obj,
page_base += offset & PAGE_MASK;
}
if (gtt_user_read(&ggtt->mappable, page_base, page_offset,
if (gtt_user_read(&ggtt->iomap, page_base, page_offset,
user_data, page_length)) {
ret = -EFAULT;
break;
@ -1314,7 +1324,7 @@ i915_gem_gtt_pwrite_fast(struct drm_i915_gem_object *obj,
* If the object is non-shmem backed, we retry again with the
* path that handles page fault.
*/
if (ggtt_write(&ggtt->mappable, page_base, page_offset,
if (ggtt_write(&ggtt->iomap, page_base, page_offset,
user_data, page_length)) {
ret = -EFAULT;
break;
@ -1556,10 +1566,7 @@ static void i915_gem_object_bump_inactive_ggtt(struct drm_i915_gem_object *obj)
GEM_BUG_ON(!i915_gem_object_has_pinned_pages(obj));
list_for_each_entry(vma, &obj->vma_list, obj_link) {
if (!i915_vma_is_ggtt(vma))
break;
for_each_ggtt_vma(vma, obj) {
if (i915_vma_is_active(vma))
continue;
@ -1960,9 +1967,9 @@ int i915_gem_fault(struct vm_fault *vmf)
/* Finally, remap it using the new GTT offset */
ret = remap_io_mapping(area,
area->vm_start + (vma->ggtt_view.partial.offset << PAGE_SHIFT),
(ggtt->mappable_base + vma->node.start) >> PAGE_SHIFT,
(ggtt->gmadr.start + vma->node.start) >> PAGE_SHIFT,
min_t(u64, vma->size, area->vm_end - area->vm_start),
&ggtt->mappable);
&ggtt->iomap);
if (ret)
goto err_fence;
@ -1972,6 +1979,8 @@ int i915_gem_fault(struct vm_fault *vmf)
list_add(&obj->userfault_link, &dev_priv->mm.userfault_list);
GEM_BUG_ON(!obj->userfault_count);
i915_vma_set_ggtt_write(vma);
err_fence:
i915_vma_unpin_fence(vma);
err_unpin:
@ -2036,12 +2045,8 @@ static void __i915_gem_object_release_mmap(struct drm_i915_gem_object *obj)
drm_vma_node_unmap(&obj->base.vma_node,
obj->base.dev->anon_inode->i_mapping);
list_for_each_entry(vma, &obj->vma_list, obj_link) {
if (!i915_vma_is_ggtt(vma))
break;
for_each_ggtt_vma(vma, obj)
i915_vma_unset_userfault(vma);
}
}
/**
@ -3328,7 +3333,7 @@ i915_gem_idle_work_handler(struct work_struct *work)
* Wait for last execlists context complete, but bail out in case a
* new request is submitted.
*/
end = ktime_add_ms(ktime_get(), 200);
end = ktime_add_ms(ktime_get(), I915_IDLE_ENGINES_TIMEOUT);
do {
if (new_requests_since_last_retire(dev_priv))
return;
@ -3381,6 +3386,9 @@ i915_gem_idle_work_handler(struct work_struct *work)
if (INTEL_GEN(dev_priv) >= 6)
gen6_rps_idle(dev_priv);
intel_display_power_put(dev_priv, POWER_DOMAIN_GT_IRQ);
intel_runtime_pm_put(dev_priv);
out_unlock:
mutex_unlock(&dev_priv->drm.struct_mutex);
@ -3525,8 +3533,19 @@ static int wait_for_timeline(struct i915_gem_timeline *tl, unsigned int flags)
static int wait_for_engines(struct drm_i915_private *i915)
{
if (wait_for(intel_engines_are_idle(i915), 50)) {
DRM_ERROR("Failed to idle engines, declaring wedged!\n");
if (wait_for(intel_engines_are_idle(i915), I915_IDLE_ENGINES_TIMEOUT)) {
dev_err(i915->drm.dev,
"Failed to idle engines, declaring wedged!\n");
if (drm_debug & DRM_UT_DRIVER) {
struct drm_printer p = drm_debug_printer(__func__);
struct intel_engine_cs *engine;
enum intel_engine_id id;
for_each_engine(engine, i915, id)
intel_engine_dump(engine, &p,
"%s", engine->name);
}
i915_gem_set_wedged(i915);
return -EIO;
}
@ -3552,9 +3571,7 @@ int i915_gem_wait_for_idle(struct drm_i915_private *i915, unsigned int flags)
if (ret)
return ret;
}
i915_gem_retire_requests(i915);
GEM_BUG_ON(i915->gt.active_requests);
ret = wait_for_engines(i915);
} else {
@ -3753,7 +3770,8 @@ restart:
return -EBUSY;
}
if (i915_gem_valid_gtt_space(vma, cache_level))
if (!i915_vma_is_closed(vma) &&
i915_gem_valid_gtt_space(vma, cache_level))
continue;
ret = i915_vma_unbind(vma);
@ -3806,7 +3824,7 @@ restart:
* dropped the fence as all snoopable access is
* supposed to be linear.
*/
list_for_each_entry(vma, &obj->vma_list, obj_link) {
for_each_ggtt_vma(vma, obj) {
ret = i915_vma_put_fence(vma);
if (ret)
return ret;
@ -4847,7 +4865,8 @@ void i915_gem_resume(struct drm_i915_private *i915)
i915_gem_restore_gtt_mappings(i915);
i915_gem_restore_fences(i915);
/* As we didn't flush the kernel context before suspend, we cannot
/*
* As we didn't flush the kernel context before suspend, we cannot
* guarantee that the context image is complete. So let's just reset
* it and start again.
*/
@ -4868,8 +4887,10 @@ out_unlock:
return;
err_wedged:
DRM_ERROR("failed to re-initialize GPU, declaring wedged!\n");
i915_gem_set_wedged(i915);
if (!i915_terminally_wedged(&i915->gpu_error)) {
DRM_ERROR("failed to re-initialize GPU, declaring wedged!\n");
i915_gem_set_wedged(i915);
}
goto out_unlock;
}
@ -5142,6 +5163,10 @@ int i915_gem_init(struct drm_i915_private *dev_priv)
if (ret)
return ret;
ret = intel_uc_init_wq(dev_priv);
if (ret)
return ret;
/* This is just a security blanket to placate dragons.
* On some systems, we very sporadically observe that the first TLBs
* used by the CS may be stale, despite us poking the TLB reset. If
@ -5152,22 +5177,32 @@ int i915_gem_init(struct drm_i915_private *dev_priv)
intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
ret = i915_gem_init_ggtt(dev_priv);
if (ret)
goto out_unlock;
if (ret) {
GEM_BUG_ON(ret == -EIO);
goto err_unlock;
}
ret = i915_gem_contexts_init(dev_priv);
if (ret)
goto out_unlock;
if (ret) {
GEM_BUG_ON(ret == -EIO);
goto err_ggtt;
}
ret = intel_engines_init(dev_priv);
if (ret)
goto out_unlock;
if (ret) {
GEM_BUG_ON(ret == -EIO);
goto err_context;
}
intel_init_gt_powersave(dev_priv);
ret = intel_uc_init(dev_priv);
if (ret)
goto err_pm;
ret = i915_gem_init_hw(dev_priv);
if (ret)
goto out_unlock;
goto err_uc_init;
/*
* Despite its name intel_init_clock_gating applies both display
@ -5181,9 +5216,55 @@ int i915_gem_init(struct drm_i915_private *dev_priv)
intel_init_clock_gating(dev_priv);
ret = __intel_engines_record_defaults(dev_priv);
out_unlock:
if (ret)
goto err_init_hw;
if (i915_inject_load_failure()) {
ret = -ENODEV;
goto err_init_hw;
}
if (i915_inject_load_failure()) {
ret = -EIO;
goto err_init_hw;
}
intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
mutex_unlock(&dev_priv->drm.struct_mutex);
return 0;
/*
* Unwinding is complicated by that we want to handle -EIO to mean
* disable GPU submission but keep KMS alive. We want to mark the
* HW as irrevisibly wedged, but keep enough state around that the
* driver doesn't explode during runtime.
*/
err_init_hw:
i915_gem_wait_for_idle(dev_priv, I915_WAIT_LOCKED);
i915_gem_contexts_lost(dev_priv);
intel_uc_fini_hw(dev_priv);
err_uc_init:
intel_uc_fini(dev_priv);
err_pm:
if (ret != -EIO) {
intel_cleanup_gt_powersave(dev_priv);
i915_gem_cleanup_engines(dev_priv);
}
err_context:
if (ret != -EIO)
i915_gem_contexts_fini(dev_priv);
err_ggtt:
err_unlock:
intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
mutex_unlock(&dev_priv->drm.struct_mutex);
if (ret != -EIO)
i915_gem_cleanup_userptr(dev_priv);
if (ret == -EIO) {
/* Allow engine initialisation to fail by marking the GPU as
/*
* Allow engine initialisation to fail by marking the GPU as
* wedged. But we only want to do this where the GPU is angry,
* for all other failure, such as an allocation failure, bail.
*/
@ -5193,9 +5274,8 @@ out_unlock:
}
ret = 0;
}
intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
mutex_unlock(&dev_priv->drm.struct_mutex);
i915_gem_drain_freed_objects(dev_priv);
return ret;
}

2
drivers/gpu/drm/i915/i915_gem_clflush.c
View File

@ -167,7 +167,7 @@ bool i915_gem_clflush_object(struct drm_i915_gem_object *obj,
i915_sw_fence_await_reservation(&clflush->wait,
obj->resv, NULL,
true, I915_FENCE_TIMEOUT,
GFP_KERNEL);
I915_FENCE_GFP);
reservation_object_lock(obj->resv, NULL);
reservation_object_add_excl_fence(obj->resv, &clflush->dma);

6
drivers/gpu/drm/i915/i915_gem_context.c
View File

@ -316,7 +316,7 @@ __create_hw_context(struct drm_i915_private *dev_priv,
* present or not in use we still need a small bias as ring wraparound
* at offset 0 sometimes hangs. No idea why.
*/
if (HAS_GUC(dev_priv) && i915_modparams.enable_guc_loading)
if (USES_GUC(dev_priv))
ctx->ggtt_offset_bias = GUC_WOPCM_TOP;
else
ctx->ggtt_offset_bias = I915_GTT_PAGE_SIZE;
@ -409,7 +409,7 @@ i915_gem_context_create_gvt(struct drm_device *dev)
i915_gem_context_set_closed(ctx); /* not user accessible */
i915_gem_context_clear_bannable(ctx);
i915_gem_context_set_force_single_submission(ctx);
if (!i915_modparams.enable_guc_submission)
if (!USES_GUC_SUBMISSION(to_i915(dev)))
ctx->ring_size = 512 * PAGE_SIZE; /* Max ring buffer size */
GEM_BUG_ON(i915_gem_context_is_kernel(ctx));
@ -617,7 +617,7 @@ int i915_gem_switch_to_kernel_context(struct drm_i915_private *dev_priv)
if (prev)
i915_sw_fence_await_sw_fence_gfp(&req->submit,
&prev->submit,
GFP_KERNEL);
I915_FENCE_GFP);
}
/*

2
drivers/gpu/drm/i915/i915_gem_execbuffer.c
View File

@ -1012,7 +1012,7 @@ static void *reloc_iomap(struct drm_i915_gem_object *obj,
offset += page << PAGE_SHIFT;
}
vaddr = (void __force *)io_mapping_map_atomic_wc(&ggtt->mappable,
vaddr = (void __force *)io_mapping_map_atomic_wc(&ggtt->iomap,
offset);
cache->page = page;
cache->vaddr = (unsigned long)vaddr;

106
drivers/gpu/drm/i915/i915_gem_gtt.c
View File

@ -2912,7 +2912,7 @@ void i915_ggtt_cleanup_hw(struct drm_i915_private *dev_priv)
mutex_unlock(&dev_priv->drm.struct_mutex);
arch_phys_wc_del(ggtt->mtrr);
io_mapping_fini(&ggtt->mappable);
io_mapping_fini(&ggtt->iomap);
}
static unsigned int gen6_get_total_gtt_size(u16 snb_gmch_ctl)
@ -2949,50 +2949,6 @@ static unsigned int chv_get_total_gtt_size(u16 gmch_ctrl)
return 0;
}
static size_t gen6_get_stolen_size(u16 snb_gmch_ctl)
{
snb_gmch_ctl >>= SNB_GMCH_GMS_SHIFT;
snb_gmch_ctl &= SNB_GMCH_GMS_MASK;
return (size_t)snb_gmch_ctl << 25; /* 32 MB units */
}
static size_t gen8_get_stolen_size(u16 bdw_gmch_ctl)
{
bdw_gmch_ctl >>= BDW_GMCH_GMS_SHIFT;
bdw_gmch_ctl &= BDW_GMCH_GMS_MASK;
return (size_t)bdw_gmch_ctl << 25; /* 32 MB units */
}
static size_t chv_get_stolen_size(u16 gmch_ctrl)
{
gmch_ctrl >>= SNB_GMCH_GMS_SHIFT;
gmch_ctrl &= SNB_GMCH_GMS_MASK;
/*
* 0x0 to 0x10: 32MB increments starting at 0MB
* 0x11 to 0x16: 4MB increments starting at 8MB
* 0x17 to 0x1d: 4MB increments start at 36MB
*/
if (gmch_ctrl < 0x11)
return (size_t)gmch_ctrl << 25;
else if (gmch_ctrl < 0x17)
return (size_t)(gmch_ctrl - 0x11 + 2) << 22;
else
return (size_t)(gmch_ctrl - 0x17 + 9) << 22;
}
static size_t gen9_get_stolen_size(u16 gen9_gmch_ctl)
{
gen9_gmch_ctl >>= BDW_GMCH_GMS_SHIFT;
gen9_gmch_ctl &= BDW_GMCH_GMS_MASK;
if (gen9_gmch_ctl < 0xf0)
return (size_t)gen9_gmch_ctl << 25; /* 32 MB units */
else
/* 4MB increments starting at 0xf0 for 4MB */
return (size_t)(gen9_gmch_ctl - 0xf0 + 1) << 22;
}
static int ggtt_probe_common(struct i915_ggtt *ggtt, u64 size)
{
struct drm_i915_private *dev_priv = ggtt->base.i915;
@ -3332,8 +3288,10 @@ static int gen8_gmch_probe(struct i915_ggtt *ggtt)
int err;
/* TODO: We're not aware of mappable constraints on gen8 yet */
ggtt->mappable_base = pci_resource_start(pdev, 2);
ggtt->mappable_end = pci_resource_len(pdev, 2);
ggtt->gmadr =
(struct resource) DEFINE_RES_MEM(pci_resource_start(pdev, 2),
pci_resource_len(pdev, 2));
ggtt->mappable_end = resource_size(&ggtt->gmadr);
err = pci_set_dma_mask(pdev, DMA_BIT_MASK(39));
if (!err)
@ -3344,13 +3302,10 @@ static int gen8_gmch_probe(struct i915_ggtt *ggtt)
pci_read_config_word(pdev, SNB_GMCH_CTRL, &snb_gmch_ctl);
if (INTEL_GEN(dev_priv) >= 9) {
ggtt->stolen_size = gen9_get_stolen_size(snb_gmch_ctl);
size = gen8_get_total_gtt_size(snb_gmch_ctl);
} else if (IS_CHERRYVIEW(dev_priv)) {
ggtt->stolen_size = chv_get_stolen_size(snb_gmch_ctl);
size = chv_get_total_gtt_size(snb_gmch_ctl);
} else {
ggtt->stolen_size = gen8_get_stolen_size(snb_gmch_ctl);
size = gen8_get_total_gtt_size(snb_gmch_ctl);
}
@ -3390,14 +3345,16 @@ static int gen6_gmch_probe(struct i915_ggtt *ggtt)
u16 snb_gmch_ctl;
int err;
ggtt->mappable_base = pci_resource_start(pdev, 2);
ggtt->mappable_end = pci_resource_len(pdev, 2);
ggtt->gmadr =
(struct resource) DEFINE_RES_MEM(pci_resource_start(pdev, 2),
pci_resource_len(pdev, 2));
ggtt->mappable_end = resource_size(&ggtt->gmadr);
/* 64/512MB is the current min/max we actually know of, but this is just
* a coarse sanity check.
*/
if (ggtt->mappable_end < (64<<20) || ggtt->mappable_end > (512<<20)) {
DRM_ERROR("Unknown GMADR size (%llx)\n", ggtt->mappable_end);
DRM_ERROR("Unknown GMADR size (%pa)\n", &ggtt->mappable_end);
return -ENXIO;
}
@ -3408,8 +3365,6 @@ static int gen6_gmch_probe(struct i915_ggtt *ggtt)
DRM_ERROR("Can't set DMA mask/consistent mask (%d)\n", err);
pci_read_config_word(pdev, SNB_GMCH_CTRL, &snb_gmch_ctl);
ggtt->stolen_size = gen6_get_stolen_size(snb_gmch_ctl);
size = gen6_get_total_gtt_size(snb_gmch_ctl);
ggtt->base.total = (size / sizeof(gen6_pte_t)) << PAGE_SHIFT;
@ -3446,6 +3401,7 @@ static void i915_gmch_remove(struct i915_address_space *vm)
static int i915_gmch_probe(struct i915_ggtt *ggtt)
{
struct drm_i915_private *dev_priv = ggtt->base.i915;
phys_addr_t gmadr_base;
int ret;
ret = intel_gmch_probe(dev_priv->bridge_dev, dev_priv->drm.pdev, NULL);
@ -3455,10 +3411,13 @@ static int i915_gmch_probe(struct i915_ggtt *ggtt)
}
intel_gtt_get(&ggtt->base.total,
&ggtt->stolen_size,
&ggtt->mappable_base,
&gmadr_base,
&ggtt->mappable_end);
ggtt->gmadr =
(struct resource) DEFINE_RES_MEM(gmadr_base,
ggtt->mappable_end);
ggtt->do_idle_maps = needs_idle_maps(dev_priv);
ggtt->base.insert_page = i915_ggtt_insert_page;
ggtt->base.insert_entries = i915_ggtt_insert_entries;
@ -3503,9 +3462,9 @@ int i915_ggtt_probe_hw(struct drm_i915_private *dev_priv)
* currently don't have any bits spare to pass in this upper
* restriction!
*/
if (HAS_GUC(dev_priv) && i915_modparams.enable_guc_loading) {
if (USES_GUC(dev_priv)) {
ggtt->base.total = min_t(u64, ggtt->base.total, GUC_GGTT_TOP);
ggtt->mappable_end = min(ggtt->mappable_end, ggtt->base.total);
ggtt->mappable_end = min_t(u64, ggtt->mappable_end, ggtt->base.total);
}
if ((ggtt->base.total - 1) >> 32) {
@ -3513,21 +3472,21 @@ int i915_ggtt_probe_hw(struct drm_i915_private *dev_priv)
" of address space! Found %lldM!\n",
ggtt->base.total >> 20);
ggtt->base.total = 1ULL << 32;
ggtt->mappable_end = min(ggtt->mappable_end, ggtt->base.total);
ggtt->mappable_end = min_t(u64, ggtt->mappable_end, ggtt->base.total);
}
if (ggtt->mappable_end > ggtt->base.total) {
DRM_ERROR("mappable aperture extends past end of GGTT,"
" aperture=%llx, total=%llx\n",
ggtt->mappable_end, ggtt->base.total);
" aperture=%pa, total=%llx\n",
&ggtt->mappable_end, ggtt->base.total);
ggtt->mappable_end = ggtt->base.total;
}
/* GMADR is the PCI mmio aperture into the global GTT. */
DRM_INFO("Memory usable by graphics device = %lluM\n",
ggtt->base.total >> 20);
DRM_DEBUG_DRIVER("GMADR size = %lldM\n", ggtt->mappable_end >> 20);
DRM_DEBUG_DRIVER("GTT stolen size = %uM\n", ggtt->stolen_size >> 20);
DRM_DEBUG_DRIVER("GGTT size = %lluM\n", ggtt->base.total >> 20);
DRM_DEBUG_DRIVER("GMADR size = %lluM\n", (u64)ggtt->mappable_end >> 20);
DRM_DEBUG_DRIVER("DSM size = %lluM\n",
(u64)resource_size(&intel_graphics_stolen_res) >> 20);
if (intel_vtd_active())
DRM_INFO("VT-d active for gfx access\n");
@ -3556,14 +3515,14 @@ int i915_ggtt_init_hw(struct drm_i915_private *dev_priv)
ggtt->base.mm.color_adjust = i915_gtt_color_adjust;
mutex_unlock(&dev_priv->drm.struct_mutex);
if (!io_mapping_init_wc(&dev_priv->ggtt.mappable,
dev_priv->ggtt.mappable_base,
if (!io_mapping_init_wc(&dev_priv->ggtt.iomap,
dev_priv->ggtt.gmadr.start,
dev_priv->ggtt.mappable_end)) {
ret = -EIO;
goto out_gtt_cleanup;
}
ggtt->mtrr = arch_phys_wc_add(ggtt->mappable_base, ggtt->mappable_end);
ggtt->mtrr = arch_phys_wc_add(ggtt->gmadr.start, ggtt->mappable_end);
/*
* Initialise stolen early so that we may reserve preallocated
@ -3593,6 +3552,8 @@ void i915_ggtt_enable_guc(struct drm_i915_private *i915)
GEM_BUG_ON(i915->ggtt.invalidate != gen6_ggtt_invalidate);
i915->ggtt.invalidate = guc_ggtt_invalidate;
i915_ggtt_invalidate(i915);
}
void i915_ggtt_disable_guc(struct drm_i915_private *i915)
@ -3601,6 +3562,8 @@ void i915_ggtt_disable_guc(struct drm_i915_private *i915)
GEM_BUG_ON(i915->ggtt.invalidate != guc_ggtt_invalidate);
i915->ggtt.invalidate = gen6_ggtt_invalidate;
i915_ggtt_invalidate(i915);
}
void i915_gem_restore_gtt_mappings(struct drm_i915_private *dev_priv)
@ -3620,10 +3583,7 @@ void i915_gem_restore_gtt_mappings(struct drm_i915_private *dev_priv)
bool ggtt_bound = false;
struct i915_vma *vma;
list_for_each_entry(vma, &obj->vma_list, obj_link) {
if (vma->vm != &ggtt->base)
continue;
for_each_ggtt_vma(vma, obj) {
if (!i915_vma_unbind(vma))
continue;

19
drivers/gpu/drm/i915/i915_gem_gtt.h
View File

@ -368,23 +368,10 @@ i915_vm_has_scratch_64K(struct i915_address_space *vm)
*/
struct i915_ggtt {
struct i915_address_space base;
struct io_mapping mappable; /* Mapping to our CPU mappable region */
phys_addr_t mappable_base; /* PA of our GMADR */
u64 mappable_end; /* End offset that we can CPU map */
/* Stolen memory is segmented in hardware with different portions
* offlimits to certain functions.
*
* The drm_mm is initialised to the total accessible range, as found
* from the PCI config. On Broadwell+, this is further restricted to
* avoid the first page! The upper end of stolen memory is reserved for
* hardware functions and similarly removed from the accessible range.
*/
u32 stolen_size; /* Total size of stolen memory */
u32 stolen_usable_size; /* Total size minus reserved ranges */
u32 stolen_reserved_base;
u32 stolen_reserved_size;
struct io_mapping iomap; /* Mapping to our CPU mappable region */
struct resource gmadr; /* GMADR resource */
resource_size_t mappable_end; /* End offset that we can CPU map */
/** "Graphics Stolen Memory" holds the global PTEs */
void __iomem *gsm;

2
drivers/gpu/drm/i915/i915_gem_object.h
View File

@ -261,6 +261,8 @@ struct drm_i915_gem_object {
} userptr;
unsigned long scratch;
void *gvt_info;
};
/** for phys allocated objects */

39
drivers/gpu/drm/i915/i915_gem_request.c
View File

@ -252,6 +252,20 @@ static void mark_busy(struct drm_i915_private *i915)
GEM_BUG_ON(!i915->gt.active_requests);
intel_runtime_pm_get_noresume(i915);
/*
* It seems that the DMC likes to transition between the DC states a lot
* when there are no connected displays (no active power domains) during
* command submission.
*
* This activity has negative impact on the performance of the chip with
* huge latencies observed in the interrupt handler and elsewhere.
*
* Work around it by grabbing a GT IRQ power domain whilst there is any
* GT activity, preventing any DC state transitions.
*/
intel_display_power_get(i915, POWER_DOMAIN_GT_IRQ);
i915->gt.awake = true;
intel_enable_gt_powersave(i915);
@ -663,10 +677,21 @@ i915_gem_request_alloc(struct intel_engine_cs *engine,
*
* Do not use kmem_cache_zalloc() here!
*/
req = kmem_cache_alloc(dev_priv->requests, GFP_KERNEL);
if (!req) {
ret = -ENOMEM;
goto err_unreserve;
req = kmem_cache_alloc(dev_priv->requests,
GFP_KERNEL | __GFP_RETRY_MAYFAIL | __GFP_NOWARN);
if (unlikely(!req)) {
/* Ratelimit ourselves to prevent oom from malicious clients */
ret = i915_gem_wait_for_idle(dev_priv,
I915_WAIT_LOCKED |
I915_WAIT_INTERRUPTIBLE);
if (ret)
goto err_unreserve;
req = kmem_cache_alloc(dev_priv->requests, GFP_KERNEL);
if (!req) {
ret = -ENOMEM;
goto err_unreserve;
}
}
req->timeline = i915_gem_context_lookup_timeline(ctx, engine);
@ -768,7 +793,7 @@ i915_gem_request_await_request(struct drm_i915_gem_request *to,
if (to->engine == from->engine) {
ret = i915_sw_fence_await_sw_fence_gfp(&to->submit,
&from->submit,
GFP_KERNEL);
I915_FENCE_GFP);
return ret < 0 ? ret : 0;
}
@ -796,7 +821,7 @@ i915_gem_request_await_request(struct drm_i915_gem_request *to,
await_dma_fence:
ret = i915_sw_fence_await_dma_fence(&to->submit,
&from->fence, 0,
GFP_KERNEL);
I915_FENCE_GFP);
return ret < 0 ? ret : 0;
}
@ -847,7 +872,7 @@ i915_gem_request_await_dma_fence(struct drm_i915_gem_request *req,
else
ret = i915_sw_fence_await_dma_fence(&req->submit, fence,
I915_FENCE_TIMEOUT,
GFP_KERNEL);
I915_FENCE_GFP);
if (ret < 0)
return ret;

2
drivers/gpu/drm/i915/i915_gem_request.h
View File

@ -204,6 +204,8 @@ struct drm_i915_gem_request {
struct list_head client_link;
};
#define I915_FENCE_GFP (GFP_KERNEL | __GFP_RETRY_MAYFAIL | __GFP_NOWARN)
extern const struct dma_fence_ops i915_fence_ops;
static inline bool dma_fence_is_i915(const struct dma_fence *fence)

271
drivers/gpu/drm/i915/i915_gem_stolen.c
View File

@ -30,9 +30,6 @@
#include <drm/i915_drm.h>
#include "i915_drv.h"
#define KB(x) ((x) * 1024)
#define MB(x) (KB(x) * 1024)
/*
* The BIOS typically reserves some of the system's memory for the exclusive
* use of the integrated graphics. This memory is no longer available for
@ -79,129 +76,26 @@ void i915_gem_stolen_remove_node(struct drm_i915_private *dev_priv,
mutex_unlock(&dev_priv->mm.stolen_lock);
}
static dma_addr_t i915_stolen_to_dma(struct drm_i915_private *dev_priv)
static int i915_adjust_stolen(struct drm_i915_private *dev_priv,
struct resource *dsm)
{
struct pci_dev *pdev = dev_priv->drm.pdev;
struct i915_ggtt *ggtt = &dev_priv->ggtt;
struct resource *r;
dma_addr_t base;
/* Almost universally we can find the Graphics Base of Stolen Memory
* at register BSM (0x5c) in the igfx configuration space. On a few
* (desktop) machines this is also mirrored in the bridge device at
* different locations, or in the MCHBAR.
*
* On 865 we just check the TOUD register.
*
* On 830/845/85x the stolen memory base isn't available in any
* register. We need to calculate it as TOM-TSEG_SIZE-stolen_size.
*
if (dsm->start == 0 || dsm->end <= dsm->start)
return -EINVAL;
/*
* TODO: We have yet too encounter the case where the GTT wasn't at the
* end of stolen. With that assumption we could simplify this.
*/
base = 0;
if (INTEL_GEN(dev_priv) >= 3) {
u32 bsm;
pci_read_config_dword(pdev, INTEL_BSM, &bsm);
base = bsm & INTEL_BSM_MASK;
} else if (IS_I865G(dev_priv)) {
u32 tseg_size = 0;
u16 toud = 0;
u8 tmp;
pci_bus_read_config_byte(pdev->bus, PCI_DEVFN(0, 0),
I845_ESMRAMC, &tmp);
if (tmp & TSEG_ENABLE) {
switch (tmp & I845_TSEG_SIZE_MASK) {
case I845_TSEG_SIZE_512K:
tseg_size = KB(512);
break;
case I845_TSEG_SIZE_1M:
tseg_size = MB(1);
break;
}
}
pci_bus_read_config_word(pdev->bus, PCI_DEVFN(0, 0),
I865_TOUD, &toud);
base = (toud << 16) + tseg_size;
} else if (IS_I85X(dev_priv)) {
u32 tseg_size = 0;
u32 tom;
u8 tmp;
pci_bus_read_config_byte(pdev->bus, PCI_DEVFN(0, 0),
I85X_ESMRAMC, &tmp);
if (tmp & TSEG_ENABLE)
tseg_size = MB(1);
pci_bus_read_config_byte(pdev->bus, PCI_DEVFN(0, 1),
I85X_DRB3, &tmp);
tom = tmp * MB(32);
base = tom - tseg_size - ggtt->stolen_size;
} else if (IS_I845G(dev_priv)) {
u32 tseg_size = 0;
u32 tom;
u8 tmp;
pci_bus_read_config_byte(pdev->bus, PCI_DEVFN(0, 0),
I845_ESMRAMC, &tmp);
if (tmp & TSEG_ENABLE) {
switch (tmp & I845_TSEG_SIZE_MASK) {
case I845_TSEG_SIZE_512K:
tseg_size = KB(512);
break;
case I845_TSEG_SIZE_1M:
tseg_size = MB(1);
break;
}
}
pci_bus_read_config_byte(pdev->bus, PCI_DEVFN(0, 0),
I830_DRB3, &tmp);
tom = tmp * MB(32);
base = tom - tseg_size - ggtt->stolen_size;
} else if (IS_I830(dev_priv)) {
u32 tseg_size = 0;
u32 tom;
u8 tmp;
pci_bus_read_config_byte(pdev->bus, PCI_DEVFN(0, 0),
I830_ESMRAMC, &tmp);
if (tmp & TSEG_ENABLE) {
if (tmp & I830_TSEG_SIZE_1M)
tseg_size = MB(1);
else
tseg_size = KB(512);
}
pci_bus_read_config_byte(pdev->bus, PCI_DEVFN(0, 0),
I830_DRB3, &tmp);
tom = tmp * MB(32);
base = tom - tseg_size - ggtt->stolen_size;
}
if (base == 0 || add_overflows(base, ggtt->stolen_size))
return 0;
/* make sure we don't clobber the GTT if it's within stolen memory */
/* Make sure we don't clobber the GTT if it's within stolen memory */
if (INTEL_GEN(dev_priv) <= 4 &&
!IS_G33(dev_priv) && !IS_PINEVIEW(dev_priv) && !IS_G4X(dev_priv)) {
struct {
dma_addr_t start, end;
} stolen[2] = {
{ .start = base, .end = base + ggtt->stolen_size, },
{ .start = base, .end = base + ggtt->stolen_size, },
};
u64 ggtt_start, ggtt_end;
struct resource stolen[2] = {*dsm, *dsm};
struct resource ggtt_res;
resource_size_t ggtt_start;
ggtt_start = I915_READ(PGTBL_CTL);
if (IS_GEN4(dev_priv))
@ -209,70 +103,64 @@ static dma_addr_t i915_stolen_to_dma(struct drm_i915_private *dev_priv)
(ggtt_start & PGTBL_ADDRESS_HI_MASK) << 28;
else
ggtt_start &= PGTBL_ADDRESS_LO_MASK;
ggtt_end = ggtt_start + ggtt_total_entries(ggtt) * 4;
if (ggtt_start >= stolen[0].start && ggtt_start < stolen[0].end)
stolen[0].end = ggtt_start;
if (ggtt_end > stolen[1].start && ggtt_end <= stolen[1].end)
stolen[1].start = ggtt_end;
ggtt_res =
(struct resource) DEFINE_RES_MEM(ggtt_start,
ggtt_total_entries(ggtt) * 4);
/* pick the larger of the two chunks */
if (stolen[0].end - stolen[0].start >
stolen[1].end - stolen[1].start) {
base = stolen[0].start;
ggtt->stolen_size = stolen[0].end - stolen[0].start;
} else {
base = stolen[1].start;
ggtt->stolen_size = stolen[1].end - stolen[1].start;
}
if (ggtt_res.start >= stolen[0].start && ggtt_res.start < stolen[0].end)
stolen[0].end = ggtt_res.start;
if (ggtt_res.end > stolen[1].start && ggtt_res.end <= stolen[1].end)
stolen[1].start = ggtt_res.end;
/* Pick the larger of the two chunks */
if (resource_size(&stolen[0]) > resource_size(&stolen[1]))
*dsm = stolen[0];
else
*dsm = stolen[1];
if (stolen[0].start != stolen[1].start ||
stolen[0].end != stolen[1].end) {
dma_addr_t end = base + ggtt->stolen_size - 1;
DRM_DEBUG_KMS("GTT within stolen memory at 0x%llx-0x%llx\n",
(unsigned long long)ggtt_start,
(unsigned long long)ggtt_end - 1);
DRM_DEBUG_KMS("Stolen memory adjusted to %pad - %pad\n",
&base, &end);
DRM_DEBUG_KMS("GTT within stolen memory at %pR\n", &ggtt_res);
DRM_DEBUG_KMS("Stolen memory adjusted to %pR\n", dsm);
}
}
/* Verify that nothing else uses this physical address. Stolen
/*
* Verify that nothing else uses this physical address. Stolen
* memory should be reserved by the BIOS and hidden from the
* kernel. So if the region is already marked as busy, something
* is seriously wrong.
*/
r = devm_request_mem_region(dev_priv->drm.dev, base, ggtt->stolen_size,
r = devm_request_mem_region(dev_priv->drm.dev, dsm->start,
resource_size(dsm),
"Graphics Stolen Memory");
if (r == NULL) {
/*
* One more attempt but this time requesting region from
* base + 1, as we have seen that this resolves the region
* start + 1, as we have seen that this resolves the region
* conflict with the PCI Bus.
* This is a BIOS w/a: Some BIOS wrap stolen in the root
* PCI bus, but have an off-by-one error. Hence retry the
* reservation starting from 1 instead of 0.
* There's also BIOS with off-by-one on the other end.
*/
r = devm_request_mem_region(dev_priv->drm.dev, base + 1,
ggtt->stolen_size - 2,
r = devm_request_mem_region(dev_priv->drm.dev, dsm->start + 1,
resource_size(dsm) - 2,
"Graphics Stolen Memory");
/*
* GEN3 firmware likes to smash pci bridges into the stolen
* range. Apparently this works.
*/
if (r == NULL && !IS_GEN3(dev_priv)) {
dma_addr_t end = base + ggtt->stolen_size;
DRM_ERROR("conflict detected with stolen region: %pR\n",
dsm);
DRM_ERROR("conflict detected with stolen region: [%pad - %pad]\n",
&base, &end);
base = 0;
return -EBUSY;
}
}
return base;
return 0;
}
void i915_gem_cleanup_stolen(struct drm_device *dev)
@ -286,13 +174,12 @@ void i915_gem_cleanup_stolen(struct drm_device *dev)
}
static void g4x_get_stolen_reserved(struct drm_i915_private *dev_priv,
dma_addr_t *base, u32 *size)
resource_size_t *base, resource_size_t *size)
{
struct i915_ggtt *ggtt = &dev_priv->ggtt;
uint32_t reg_val = I915_READ(IS_GM45(dev_priv) ?
CTG_STOLEN_RESERVED :
ELK_STOLEN_RESERVED);
dma_addr_t stolen_top = dev_priv->mm.stolen_base + ggtt->stolen_size;
resource_size_t stolen_top = dev_priv->dsm.end + 1;
if ((reg_val & G4X_STOLEN_RESERVED_ENABLE) == 0) {
*base = 0;
@ -321,7 +208,7 @@ static void g4x_get_stolen_reserved(struct drm_i915_private *dev_priv,
}
static void gen6_get_stolen_reserved(struct drm_i915_private *dev_priv,
dma_addr_t *base, u32 *size)
resource_size_t *base, resource_size_t *size)
{
uint32_t reg_val = I915_READ(GEN6_STOLEN_RESERVED);
@ -353,7 +240,7 @@ static void gen6_get_stolen_reserved(struct drm_i915_private *dev_priv,
}
static void gen7_get_stolen_reserved(struct drm_i915_private *dev_priv,
dma_addr_t *base, u32 *size)
resource_size_t *base, resource_size_t *size)
{
uint32_t reg_val = I915_READ(GEN6_STOLEN_RESERVED);
@ -379,7 +266,7 @@ static void gen7_get_stolen_reserved(struct drm_i915_private *dev_priv,
}
static void chv_get_stolen_reserved(struct drm_i915_private *dev_priv,
dma_addr_t *base, u32 *size)
resource_size_t *base, resource_size_t *size)
{
uint32_t reg_val = I915_READ(GEN6_STOLEN_RESERVED);
@ -411,11 +298,10 @@ static void chv_get_stolen_reserved(struct drm_i915_private *dev_priv,
}
static void bdw_get_stolen_reserved(struct drm_i915_private *dev_priv,
dma_addr_t *base, u32 *size)
resource_size_t *base, resource_size_t *size)
{
struct i915_ggtt *ggtt = &dev_priv->ggtt;
uint32_t reg_val = I915_READ(GEN6_STOLEN_RESERVED);
dma_addr_t stolen_top;
resource_size_t stolen_top;
if ((reg_val & GEN6_STOLEN_RESERVED_ENABLE) == 0) {
*base = 0;
@ -423,7 +309,7 @@ static void bdw_get_stolen_reserved(struct drm_i915_private *dev_priv,
return;
}
stolen_top = dev_priv->mm.stolen_base + ggtt->stolen_size;
stolen_top = dev_priv->dsm.end + 1;
*base = reg_val & GEN6_STOLEN_RESERVED_ADDR_MASK;
@ -439,10 +325,9 @@ static void bdw_get_stolen_reserved(struct drm_i915_private *dev_priv,
int i915_gem_init_stolen(struct drm_i915_private *dev_priv)
{
struct i915_ggtt *ggtt = &dev_priv->ggtt;
dma_addr_t reserved_base, stolen_top;
u32 reserved_total, reserved_size;
u32 stolen_usable_start;
resource_size_t reserved_base, stolen_top;
resource_size_t reserved_total, reserved_size;
resource_size_t stolen_usable_start;
mutex_init(&dev_priv->mm.stolen_lock);
@ -456,14 +341,18 @@ int i915_gem_init_stolen(struct drm_i915_private *dev_priv)
return 0;
}
if (ggtt->stolen_size == 0)
if (resource_size(&intel_graphics_stolen_res) == 0)
return 0;
dev_priv->mm.stolen_base = i915_stolen_to_dma(dev_priv);
if (dev_priv->mm.stolen_base == 0)
dev_priv->dsm = intel_graphics_stolen_res;
if (i915_adjust_stolen(dev_priv, &dev_priv->dsm))
return 0;
stolen_top = dev_priv->mm.stolen_base + ggtt->stolen_size;
GEM_BUG_ON(dev_priv->dsm.start == 0);
GEM_BUG_ON(dev_priv->dsm.end <= dev_priv->dsm.start);
stolen_top = dev_priv->dsm.end + 1;
reserved_base = 0;
reserved_size = 0;
@ -504,50 +393,47 @@ int i915_gem_init_stolen(struct drm_i915_private *dev_priv)
reserved_base = stolen_top;
}
if (reserved_base < dev_priv->mm.stolen_base ||
reserved_base + reserved_size > stolen_top) {
dma_addr_t reserved_top = reserved_base + reserved_size;
DRM_ERROR("Stolen reserved area [%pad - %pad] outside stolen memory [%pad - %pad]\n",
&reserved_base, &reserved_top,
&dev_priv->mm.stolen_base, &stolen_top);
dev_priv->dsm_reserved =
(struct resource) DEFINE_RES_MEM(reserved_base, reserved_size);
if (!resource_contains(&dev_priv->dsm, &dev_priv->dsm_reserved)) {
DRM_ERROR("Stolen reserved area %pR outside stolen memory %pR\n",
&dev_priv->dsm_reserved, &dev_priv->dsm);
return 0;
}
ggtt->stolen_reserved_base = reserved_base;
ggtt->stolen_reserved_size = reserved_size;
/* It is possible for the reserved area to end before the end of stolen
* memory, so just consider the start. */
reserved_total = stolen_top - reserved_base;
DRM_DEBUG_KMS("Memory reserved for graphics device: %uK, usable: %uK\n",
ggtt->stolen_size >> 10,
(ggtt->stolen_size - reserved_total) >> 10);
DRM_DEBUG_KMS("Memory reserved for graphics device: %lluK, usable: %lluK\n",
(u64)resource_size(&dev_priv->dsm) >> 10,
((u64)resource_size(&dev_priv->dsm) - reserved_total) >> 10);
stolen_usable_start = 0;
/* WaSkipStolenMemoryFirstPage:bdw+ */
if (INTEL_GEN(dev_priv) >= 8)
stolen_usable_start = 4096;
ggtt->stolen_usable_size =
ggtt->stolen_size - reserved_total - stolen_usable_start;
dev_priv->stolen_usable_size =
resource_size(&dev_priv->dsm) - reserved_total - stolen_usable_start;
/* Basic memrange allocator for stolen space. */
drm_mm_init(&dev_priv->mm.stolen, stolen_usable_start,
ggtt->stolen_usable_size);
dev_priv->stolen_usable_size);
return 0;
}
static struct sg_table *
i915_pages_create_for_stolen(struct drm_device *dev,
u32 offset, u32 size)
resource_size_t offset, resource_size_t size)
{
struct drm_i915_private *dev_priv = to_i915(dev);
struct sg_table *st;
struct scatterlist *sg;
GEM_BUG_ON(range_overflows(offset, size, dev_priv->ggtt.stolen_size));
GEM_BUG_ON(range_overflows(offset, size, resource_size(&dev_priv->dsm)));
/* We hide that we have no struct page backing our stolen object
* by wrapping the contiguous physical allocation with a fake
@ -567,7 +453,7 @@ i915_pages_create_for_stolen(struct drm_device *dev,
sg->offset = 0;
sg->length = size;
sg_dma_address(sg) = (dma_addr_t)dev_priv->mm.stolen_base + offset;
sg_dma_address(sg) = (dma_addr_t)dev_priv->dsm.start + offset;
sg_dma_len(sg) = size;
return st;
@ -645,7 +531,8 @@ cleanup:
}
struct drm_i915_gem_object *
i915_gem_object_create_stolen(struct drm_i915_private *dev_priv, u32 size)
i915_gem_object_create_stolen(struct drm_i915_private *dev_priv,
resource_size_t size)
{
struct drm_i915_gem_object *obj;
struct drm_mm_node *stolen;
@ -678,9 +565,9 @@ i915_gem_object_create_stolen(struct drm_i915_private *dev_priv, u32 size)
struct drm_i915_gem_object *
i915_gem_object_create_stolen_for_preallocated(struct drm_i915_private *dev_priv,
u32 stolen_offset,
u32 gtt_offset,
u32 size)
resource_size_t stolen_offset,
resource_size_t gtt_offset,
resource_size_t size)
{
struct i915_ggtt *ggtt = &dev_priv->ggtt;
struct drm_i915_gem_object *obj;
@ -693,8 +580,8 @@ i915_gem_object_create_stolen_for_preallocated(struct drm_i915_private *dev_priv
lockdep_assert_held(&dev_priv->drm.struct_mutex);
DRM_DEBUG_KMS("creating preallocated stolen object: stolen_offset=%x, gtt_offset=%x, size=%x\n",
stolen_offset, gtt_offset, size);
DRM_DEBUG_KMS("creating preallocated stolen object: stolen_offset=%pa, gtt_offset=%pa, size=%pa\n",
&stolen_offset, &gtt_offset, &size);
/* KISS and expect everything to be page-aligned */
if (WARN_ON(size == 0) ||

10
drivers/gpu/drm/i915/i915_gem_tiling.c
View File

@ -205,10 +205,7 @@ i915_gem_object_fence_prepare(struct drm_i915_gem_object *obj,
if (tiling_mode == I915_TILING_NONE)
return 0;
list_for_each_entry(vma, &obj->vma_list, obj_link) {
if (!i915_vma_is_ggtt(vma))
break;
for_each_ggtt_vma(vma, obj) {
if (i915_vma_fence_prepare(vma, tiling_mode, stride))
continue;
@ -285,10 +282,7 @@ i915_gem_object_set_tiling(struct drm_i915_gem_object *obj,
}
mutex_unlock(&obj->mm.lock);
list_for_each_entry(vma, &obj->vma_list, obj_link) {
if (!i915_vma_is_ggtt(vma))
break;
for_each_ggtt_vma(vma, obj) {
vma->fence_size =
i915_gem_fence_size(i915, vma->size, tiling, stride);
vma->fence_alignment =

5
drivers/gpu/drm/i915/i915_gem_timeline.c
View File

@ -33,11 +33,8 @@ static void __intel_timeline_init(struct intel_timeline *tl,
{
tl->fence_context = context;
tl->common = parent;
#ifdef CONFIG_DEBUG_SPINLOCK
__raw_spin_lock_init(&tl->lock.rlock, lockname, lockclass);
#else
spin_lock_init(&tl->lock);
#endif
lockdep_set_class_and_name(&tl->lock, lockclass, lockname);
init_request_active(&tl->last_request, NULL);
INIT_LIST_HEAD(&tl->requests);
i915_syncmap_init(&tl->sync);

2
drivers/gpu/drm/i915/i915_gpu_error.c
View File

@ -956,7 +956,7 @@ i915_error_object_create(struct drm_i915_private *i915,
ggtt->base.insert_page(&ggtt->base, dma, slot,
I915_CACHE_NONE, 0);
s = io_mapping_map_atomic_wc(&ggtt->mappable, slot);
s = io_mapping_map_atomic_wc(&ggtt->iomap, slot);
ret = compress_page(&compress, (void __force *)s, dst);
io_mapping_unmap_atomic(s);

2
drivers/gpu/drm/i915/i915_irq.c
View File

@ -1400,7 +1400,7 @@ gen8_cs_irq_handler(struct intel_engine_cs *engine, u32 iir, int test_shift)
if (iir & (GT_RENDER_USER_INTERRUPT << test_shift)) {
notify_ring(engine);
tasklet |= i915_modparams.enable_guc_submission;
tasklet |= USES_GUC_SUBMISSION(engine->i915);
}
if (tasklet)

11
drivers/gpu/drm/i915/i915_params.c
View File

@ -147,13 +147,10 @@ i915_param_named_unsafe(edp_vswing, int, 0400,
"(0=use value from vbt [default], 1=low power swing(200mV),"
"2=default swing(400mV))");
i915_param_named_unsafe(enable_guc_loading, int, 0400,
"Enable GuC firmware loading "
"(-1=auto, 0=never [default], 1=if available, 2=required)");
i915_param_named_unsafe(enable_guc_submission, int, 0400,
"Enable GuC submission "
"(-1=auto, 0=never [default], 1=if available, 2=required)");
i915_param_named_unsafe(enable_guc, int, 0400,
"Enable GuC load for GuC submission and/or HuC load. "
"Required functionality can be selected using bitmask values. "
"(-1=auto, 0=disable [default], 1=GuC submission, 2=HuC load)");
i915_param_named(guc_log_level, int, 0400,
"GuC firmware logging level (-1:disabled (default), 0-3:enabled)");

7
drivers/gpu/drm/i915/i915_params.h
View File

@ -25,8 +25,12 @@
#ifndef _I915_PARAMS_H_
#define _I915_PARAMS_H_
#include <linux/bitops.h>
#include <linux/cache.h> /* for __read_mostly */
#define ENABLE_GUC_SUBMISSION BIT(0)
#define ENABLE_GUC_LOAD_HUC BIT(1)
#define I915_PARAMS_FOR_EACH(param) \
param(char *, vbt_firmware, NULL) \
param(int, modeset, -1) \
@ -41,8 +45,7 @@
param(int, disable_power_well, -1) \
param(int, enable_ips, 1) \
param(int, invert_brightness, 0) \
param(int, enable_guc_loading, 0) \
param(int, enable_guc_submission, 0) \
param(int, enable_guc, 0) \
param(int, guc_log_level, -1) \
param(char *, guc_firmware_path, NULL) \
param(char *, huc_firmware_path, NULL) \

6
drivers/gpu/drm/i915/i915_sw_fence.c
View File

@ -303,6 +303,7 @@ static int __i915_sw_fence_await_sw_fence(struct i915_sw_fence *fence,
int pending;
debug_fence_assert(fence);
might_sleep_if(gfpflags_allow_blocking(gfp));
if (i915_sw_fence_done(signaler))
return 0;
@ -367,6 +368,7 @@ struct i915_sw_dma_fence_cb {
struct dma_fence *dma;
struct timer_list timer;
struct irq_work work;
struct rcu_head rcu;
};
static void timer_i915_sw_fence_wake(struct timer_list *t)
@ -406,7 +408,7 @@ static void irq_i915_sw_fence_work(struct irq_work *wrk)
del_timer_sync(&cb->timer);
dma_fence_put(cb->dma);
kfree(cb);
kfree_rcu(cb, rcu);
}
int i915_sw_fence_await_dma_fence(struct i915_sw_fence *fence,
@ -418,6 +420,7 @@ int i915_sw_fence_await_dma_fence(struct i915_sw_fence *fence,
int ret;
debug_fence_assert(fence);
might_sleep_if(gfpflags_allow_blocking(gfp));
if (dma_fence_is_signaled(dma))
return 0;
@ -464,6 +467,7 @@ int i915_sw_fence_await_reservation(struct i915_sw_fence *fence,
int ret = 0, pending;
debug_fence_assert(fence);
might_sleep_if(gfpflags_allow_blocking(gfp));
if (write) {
struct dma_fence **shared;

34
drivers/gpu/drm/i915/i915_vma.c
View File

@ -142,6 +142,12 @@ vma_create(struct drm_i915_gem_object *obj,
i915_gem_object_get_stride(obj));
GEM_BUG_ON(!is_power_of_2(vma->fence_alignment));
/*
* We put the GGTT vma at the start of the vma-list, followed
* by the ppGGTT vma. This allows us to break early when
* iterating over only the GGTT vma for an object, see
* for_each_ggtt_vma()
*/
vma->flags |= I915_VMA_GGTT;
list_add(&vma->obj_link, &obj->vma_list);
} else {
@ -305,7 +311,7 @@ void __iomem *i915_vma_pin_iomap(struct i915_vma *vma)
ptr = vma->iomap;
if (ptr == NULL) {
ptr = io_mapping_map_wc(&i915_vm_to_ggtt(vma->vm)->mappable,
ptr = io_mapping_map_wc(&i915_vm_to_ggtt(vma->vm)->iomap,
vma->node.start,
vma->node.size);
if (ptr == NULL) {
@ -322,6 +328,7 @@ void __iomem *i915_vma_pin_iomap(struct i915_vma *vma)
if (err)
goto err_unpin;
i915_vma_set_ggtt_write(vma);
return ptr;
err_unpin:
@ -330,12 +337,24 @@ err:
return IO_ERR_PTR(err);
}
void i915_vma_flush_writes(struct i915_vma *vma)
{
if (!i915_vma_has_ggtt_write(vma))
return;
i915_gem_flush_ggtt_writes(vma->vm->i915);
i915_vma_unset_ggtt_write(vma);
}
void i915_vma_unpin_iomap(struct i915_vma *vma)
{
lockdep_assert_held(&vma->obj->base.dev->struct_mutex);
GEM_BUG_ON(vma->iomap == NULL);
i915_vma_flush_writes(vma);
i915_vma_unpin_fence(vma);
i915_vma_unpin(vma);
}
@ -466,6 +485,7 @@ i915_vma_insert(struct i915_vma *vma, u64 size, u64 alignment, u64 flags)
u64 start, end;
int ret;
GEM_BUG_ON(i915_vma_is_closed(vma));
GEM_BUG_ON(vma->flags & (I915_VMA_GLOBAL_BIND | I915_VMA_LOCAL_BIND));
GEM_BUG_ON(drm_mm_node_allocated(&vma->node));
@ -678,7 +698,9 @@ static void i915_vma_destroy(struct i915_vma *vma)
GEM_BUG_ON(i915_gem_active_isset(&vma->last_read[i]));
GEM_BUG_ON(i915_gem_active_isset(&vma->last_fence));
list_del(&vma->obj_link);
list_del(&vma->vm_link);
if (!i915_vma_is_ggtt(vma))
i915_ppgtt_put(i915_vm_to_ppgtt(vma->vm));
@ -690,7 +712,6 @@ void i915_vma_close(struct i915_vma *vma)
GEM_BUG_ON(i915_vma_is_closed(vma));
vma->flags |= I915_VMA_CLOSED;
list_del(&vma->obj_link);
rb_erase(&vma->obj_node, &vma->obj->vma_tree);
if (!i915_vma_is_active(vma) && !i915_vma_is_pinned(vma))
@ -790,6 +811,15 @@ int i915_vma_unbind(struct i915_vma *vma)
GEM_BUG_ON(!i915_gem_object_has_pinned_pages(obj));
if (i915_vma_is_map_and_fenceable(vma)) {
/*
* Check that we have flushed all writes through the GGTT
* before the unbind, other due to non-strict nature of those
* indirect writes they may end up referencing the GGTT PTE
* after the unbind.
*/
i915_vma_flush_writes(vma);
GEM_BUG_ON(i915_vma_has_ggtt_write(vma));
/* release the fence reg _after_ flushing */
ret = i915_vma_put_fence(vma);
if (ret)

35
drivers/gpu/drm/i915/i915_vma.h
View File

@ -90,6 +90,7 @@ struct i915_vma {
#define I915_VMA_CLOSED BIT(10)
#define I915_VMA_USERFAULT_BIT 11
#define I915_VMA_USERFAULT BIT(I915_VMA_USERFAULT_BIT)
#define I915_VMA_GGTT_WRITE BIT(12)
unsigned int active;
struct i915_gem_active last_read[I915_NUM_ENGINES];
@ -138,6 +139,24 @@ static inline bool i915_vma_is_ggtt(const struct i915_vma *vma)
return vma->flags & I915_VMA_GGTT;
}
static inline bool i915_vma_has_ggtt_write(const struct i915_vma *vma)
{
return vma->flags & I915_VMA_GGTT_WRITE;
}
static inline void i915_vma_set_ggtt_write(struct i915_vma *vma)
{
GEM_BUG_ON(!i915_vma_is_ggtt(vma));
vma->flags |= I915_VMA_GGTT_WRITE;
}
static inline void i915_vma_unset_ggtt_write(struct i915_vma *vma)
{
vma->flags &= ~I915_VMA_GGTT_WRITE;
}
void i915_vma_flush_writes(struct i915_vma *vma);
static inline bool i915_vma_is_map_and_fenceable(const struct i915_vma *vma)
{
return vma->flags & I915_VMA_CAN_FENCE;
@ -389,5 +408,19 @@ i915_vma_unpin_fence(struct i915_vma *vma)
__i915_vma_unpin_fence(vma);
}
#endif
#define for_each_until(cond) if (cond) break; else
/**
* for_each_ggtt_vma - Iterate over the GGTT VMA belonging to an object.
* @V: the #i915_vma iterator
* @OBJ: the #drm_i915_gem_object
*
* GGTT VMA are placed at the being of the object's vma_list, see
* vma_create(), so we can stop our walk as soon as we see a ppgtt VMA,
* or the list is empty ofc.
*/
#define for_each_ggtt_vma(V, OBJ) \
list_for_each_entry(V, &(OBJ)->vma_list, obj_link) \
for_each_until(!i915_vma_is_ggtt(V))
#endif

73
drivers/gpu/drm/i915/intel_breadcrumbs.c
View File

@ -27,6 +27,12 @@
#include "i915_drv.h"
#ifdef CONFIG_SMP
#define task_asleep(tsk) ((tsk)->state & TASK_NORMAL && !(tsk)->on_cpu)
#else
#define task_asleep(tsk) ((tsk)->state & TASK_NORMAL)
#endif
static unsigned int __intel_breadcrumbs_wakeup(struct intel_breadcrumbs *b)
{
struct intel_wait *wait;
@ -36,8 +42,20 @@ static unsigned int __intel_breadcrumbs_wakeup(struct intel_breadcrumbs *b)
wait = b->irq_wait;
if (wait) {
/*
* N.B. Since task_asleep() and ttwu are not atomic, the
* waiter may actually go to sleep after the check, causing
* us to suppress a valid wakeup. We prefer to reduce the
* number of false positive missed_breadcrumb() warnings
* at the expense of a few false negatives, as it it easy
* to trigger a false positive under heavy load. Enough
* signal should remain from genuine missed_breadcrumb()
* for us to detect in CI.
*/
bool was_asleep = task_asleep(wait->tsk);
result = ENGINE_WAKEUP_WAITER;
if (wake_up_process(wait->tsk))
if (wake_up_process(wait->tsk) && was_asleep)
result |= ENGINE_WAKEUP_ASLEEP;
}
@ -64,20 +82,21 @@ static unsigned long wait_timeout(void)
static noinline void missed_breadcrumb(struct intel_engine_cs *engine)
{
DRM_DEBUG_DRIVER("%s missed breadcrumb at %pS, irq posted? %s, current seqno=%x, last=%x\n",
engine->name, __builtin_return_address(0),
yesno(test_bit(ENGINE_IRQ_BREADCRUMB,
&engine->irq_posted)),
intel_engine_get_seqno(engine),
intel_engine_last_submit(engine));
if (drm_debug & DRM_UT_DRIVER) {
struct drm_printer p = drm_debug_printer(__func__);
intel_engine_dump(engine, &p,
"%s missed breadcrumb at %pS\n",
engine->name, __builtin_return_address(0));
}
set_bit(engine->id, &engine->i915->gpu_error.missed_irq_rings);
}
static void intel_breadcrumbs_hangcheck(struct timer_list *t)
{
struct intel_engine_cs *engine = from_timer(engine, t,
breadcrumbs.hangcheck);
struct intel_engine_cs *engine =
from_timer(engine, t, breadcrumbs.hangcheck);
struct intel_breadcrumbs *b = &engine->breadcrumbs;
if (!b->irq_armed)
@ -103,7 +122,7 @@ static void intel_breadcrumbs_hangcheck(struct timer_list *t)
*/
if (intel_engine_wakeup(engine) & ENGINE_WAKEUP_ASLEEP) {
missed_breadcrumb(engine);
mod_timer(&engine->breadcrumbs.fake_irq, jiffies + 1);
mod_timer(&b->fake_irq, jiffies + 1);
} else {
mod_timer(&b->hangcheck, wait_timeout());
}
@ -213,32 +232,42 @@ void intel_engine_unpin_breadcrumbs_irq(struct intel_engine_cs *engine)
void intel_engine_disarm_breadcrumbs(struct intel_engine_cs *engine)
{
struct intel_breadcrumbs *b = &engine->breadcrumbs;
struct intel_wait *wait, *n, *first;
struct intel_wait *wait, *n;
if (!b->irq_armed)
return;
goto wakeup_signaler;
/* We only disarm the irq when we are idle (all requests completed),
/*
* We only disarm the irq when we are idle (all requests completed),
* so if the bottom-half remains asleep, it missed the request
* completion.
*/
if (intel_engine_wakeup(engine) & ENGINE_WAKEUP_ASLEEP)
missed_breadcrumb(engine);
spin_lock_irq(&b->rb_lock);
spin_lock(&b->irq_lock);
first = fetch_and_zero(&b->irq_wait);
b->irq_wait = NULL;
if (b->irq_armed)
__intel_engine_disarm_breadcrumbs(engine);
spin_unlock(&b->irq_lock);
rbtree_postorder_for_each_entry_safe(wait, n, &b->waiters, node) {
RB_CLEAR_NODE(&wait->node);
if (wake_up_process(wait->tsk) && wait == first)
missed_breadcrumb(engine);
wake_up_process(wait->tsk);
}
b->waiters = RB_ROOT;
spin_unlock_irq(&b->rb_lock);
/*
* The signaling thread may be asleep holding a reference to a request,
* that had its signaling cancelled prior to being preempted. We need
* to kick the signaler, just in case, to release any such reference.
*/
wakeup_signaler:
wake_up_process(b->signaler);
}
static bool use_fake_irq(const struct intel_breadcrumbs *b)
@ -683,23 +712,15 @@ static int intel_breadcrumbs_signaler(void *arg)
}
if (unlikely(do_schedule)) {
DEFINE_WAIT(exec);
if (kthread_should_park())
kthread_parkme();
if (kthread_should_stop()) {
GEM_BUG_ON(request);
if (unlikely(kthread_should_stop())) {
i915_gem_request_put(request);
break;
}
if (request)
add_wait_queue(&request->execute, &exec);
schedule();
if (request)
remove_wait_queue(&request->execute, &exec);
}
i915_gem_request_put(request);
} while (1);

4
drivers/gpu/drm/i915/intel_csr.c
View File

@ -44,9 +44,9 @@
MODULE_FIRMWARE(I915_CSR_KBL);
#define KBL_CSR_VERSION_REQUIRED CSR_VERSION(1, 4)
#define I915_CSR_SKL "i915/skl_dmc_ver1_26.bin"
#define I915_CSR_SKL "i915/skl_dmc_ver1_27.bin"
MODULE_FIRMWARE(I915_CSR_SKL);
#define SKL_CSR_VERSION_REQUIRED CSR_VERSION(1, 26)
#define SKL_CSR_VERSION_REQUIRED CSR_VERSION(1, 27)
#define I915_CSR_BXT "i915/bxt_dmc_ver1_07.bin"
MODULE_FIRMWARE(I915_CSR_BXT);

18
drivers/gpu/drm/i915/intel_device_info.c
View File

@ -403,20 +403,20 @@ static u32 read_timestamp_frequency(struct drm_i915_private *dev_priv)
freq = f24_mhz;
break;
}
}
/* Now figure out how the command stream's timestamp register
* increments from this frequency (it might increment only
* every few clock cycle).
*/
freq >>= 3 - ((rpm_config_reg &
GEN10_RPM_CONFIG0_CTC_SHIFT_PARAMETER_MASK) >>
GEN10_RPM_CONFIG0_CTC_SHIFT_PARAMETER_SHIFT);
/* Now figure out how the command stream's timestamp
* register increments from this frequency (it might
* increment only every few clock cycle).
*/
freq >>= 3 - ((rpm_config_reg &
GEN10_RPM_CONFIG0_CTC_SHIFT_PARAMETER_MASK) >>
GEN10_RPM_CONFIG0_CTC_SHIFT_PARAMETER_SHIFT);
}
return freq;
}
DRM_ERROR("Unknown gen, unable to compute command stream timestamp frequency\n");
MISSING_CASE("Unknown gen, unable to read command streamer timestamp frequency\n");
return 0;
}

39
drivers/gpu/drm/i915/intel_display.c
View File

@ -2639,7 +2639,6 @@ intel_alloc_initial_plane_obj(struct intel_crtc *crtc,
{
struct drm_device *dev = crtc->base.dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct i915_ggtt *ggtt = &dev_priv->ggtt;
struct drm_i915_gem_object *obj = NULL;
struct drm_mode_fb_cmd2 mode_cmd = { 0 };
struct drm_framebuffer *fb = &plane_config->fb->base;
@ -2655,7 +2654,7 @@ intel_alloc_initial_plane_obj(struct intel_crtc *crtc,
/* If the FB is too big, just don't use it since fbdev is not very
* important and we should probably use that space with FBC or other
* features. */
if (size_aligned * 2 > ggtt->stolen_usable_size)
if (size_aligned * 2 > dev_priv->stolen_usable_size)
return false;
mutex_lock(&dev->struct_mutex);
@ -9940,11 +9939,10 @@ found:
}
ret = intel_modeset_setup_plane_state(state, crtc, mode, fb, 0, 0);
drm_framebuffer_put(fb);
if (ret)
goto fail;
drm_framebuffer_put(fb);
ret = drm_atomic_set_mode_for_crtc(&crtc_state->base, mode);
if (ret)
goto fail;
@ -10967,31 +10965,6 @@ fail:
return ret;
}
static void
intel_modeset_update_crtc_state(struct drm_atomic_state *state)
{
struct drm_crtc *crtc;
struct drm_crtc_state *new_crtc_state;
int i;
/* Double check state. */
for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
to_intel_crtc(crtc)->config = to_intel_crtc_state(new_crtc_state);
/*
* Update legacy state to satisfy fbc code. This can
* be removed when fbc uses the atomic state.
*/
if (drm_atomic_get_existing_plane_state(state, crtc->primary)) {
struct drm_plane_state *plane_state = crtc->primary->state;
crtc->primary->fb = plane_state->fb;
crtc->x = plane_state->src_x >> 16;
crtc->y = plane_state->src_y >> 16;
}
}
}
static bool intel_fuzzy_clock_check(int clock1, int clock2)
{
int diff;
@ -12364,9 +12337,9 @@ static void intel_atomic_commit_tail(struct drm_atomic_state *state)
}
}
/* Only after disabling all output pipelines that will be changed can we
* update the the output configuration. */
intel_modeset_update_crtc_state(state);
/* FIXME: Eventually get rid of our intel_crtc->config pointer */
for_each_new_crtc_in_state(state, crtc, new_crtc_state, i)
to_intel_crtc(crtc)->config = to_intel_crtc_state(new_crtc_state);
if (intel_state->modeset) {
drm_atomic_helper_update_legacy_modeset_state(state->dev, state);
@ -14621,7 +14594,7 @@ int intel_modeset_init(struct drm_device *dev)
dev->mode_config.cursor_height = MAX_CURSOR_HEIGHT;
}
dev->mode_config.fb_base = ggtt->mappable_base;
dev->mode_config.fb_base = ggtt->gmadr.start;
DRM_DEBUG_KMS("%d display pipe%s available.\n",
INTEL_INFO(dev_priv)->num_pipes,

50
drivers/gpu/drm/i915/intel_engine_cs.c
View File

@ -1513,10 +1513,8 @@ bool intel_engines_are_idle(struct drm_i915_private *dev_priv)
struct intel_engine_cs *engine;
enum intel_engine_id id;
if (READ_ONCE(dev_priv->gt.active_requests))
return false;
/* If the driver is wedged, HW state may be very inconsistent and
/*
* If the driver is wedged, HW state may be very inconsistent and
* report that it is still busy, even though we have stopped using it.
*/
if (i915_terminally_wedged(&dev_priv->gpu_error))
@ -1596,7 +1594,7 @@ void intel_engines_park(struct drm_i915_private *i915)
dev_err(i915->drm.dev,
"%s is not idle before parking\n",
engine->name);
intel_engine_dump(engine, &p);
intel_engine_dump(engine, &p, NULL);
}
if (engine->park)
@ -1666,7 +1664,9 @@ static void print_request(struct drm_printer *m,
rq->timeline->common->name);
}
void intel_engine_dump(struct intel_engine_cs *engine, struct drm_printer *m)
void intel_engine_dump(struct intel_engine_cs *engine,
struct drm_printer *m,
const char *header, ...)
{
struct intel_breadcrumbs * const b = &engine->breadcrumbs;
const struct intel_engine_execlists * const execlists = &engine->execlists;
@ -1674,17 +1674,29 @@ void intel_engine_dump(struct intel_engine_cs *engine, struct drm_printer *m)
struct drm_i915_private *dev_priv = engine->i915;
struct drm_i915_gem_request *rq;
struct rb_node *rb;
char hdr[80];
u64 addr;
drm_printf(m, "%s\n", engine->name);
if (header) {
va_list ap;
va_start(ap, header);
drm_vprintf(m, header, &ap);
va_end(ap);
}
if (i915_terminally_wedged(&engine->i915->gpu_error))
drm_printf(m, "*** WEDGED ***\n");
drm_printf(m, "\tcurrent seqno %x, last %x, hangcheck %x [%d ms], inflight %d\n",
intel_engine_get_seqno(engine),
intel_engine_last_submit(engine),
engine->hangcheck.seqno,
jiffies_to_msecs(jiffies - engine->hangcheck.action_timestamp),
engine->timeline->inflight_seqnos);
drm_printf(m, "\tReset count: %d\n",
i915_reset_engine_count(error, engine));
drm_printf(m, "\tReset count: %d (global %d)\n",
i915_reset_engine_count(error, engine),
i915_reset_count(error));
rcu_read_lock();
@ -1786,12 +1798,12 @@ void intel_engine_dump(struct intel_engine_cs *engine, struct drm_printer *m)
rq = port_unpack(&execlists->port[idx], &count);
if (rq) {
drm_printf(m, "\t\tELSP[%d] count=%d, ",
idx, count);
print_request(m, rq, "rq: ");
snprintf(hdr, sizeof(hdr),
"\t\tELSP[%d] count=%d, rq: ",
idx, count);
print_request(m, rq, hdr);
} else {
drm_printf(m, "\t\tELSP[%d] idle\n",
idx);
drm_printf(m, "\t\tELSP[%d] idle\n", idx);
}
}
drm_printf(m, "\t\tHW active? 0x%x\n", execlists->active);
@ -1826,6 +1838,16 @@ void intel_engine_dump(struct intel_engine_cs *engine, struct drm_printer *m)
}
spin_unlock_irq(&b->rb_lock);
if (INTEL_GEN(dev_priv) >= 6) {
drm_printf(m, "\tRING_IMR: %08x\n", I915_READ_IMR(engine));
}
drm_printf(m, "IRQ? 0x%lx (breadcrumbs? %s) (execlists? %s)\n",
engine->irq_posted,
yesno(test_bit(ENGINE_IRQ_BREADCRUMB,
&engine->irq_posted)),
yesno(test_bit(ENGINE_IRQ_EXECLIST,
&engine->irq_posted)));
drm_printf(m, "Idle? %s\n", yesno(intel_engine_is_idle(engine)));
drm_printf(m, "\n");
}

13
drivers/gpu/drm/i915/intel_fbc.c
View File

@ -531,7 +531,6 @@ static int find_compression_threshold(struct drm_i915_private *dev_priv,
int size,
int fb_cpp)
{
struct i915_ggtt *ggtt = &dev_priv->ggtt;
int compression_threshold = 1;
int ret;
u64 end;
@ -541,7 +540,7 @@ static int find_compression_threshold(struct drm_i915_private *dev_priv,
* If we enable FBC using a CFB on that memory range we'll get FIFO
* underruns, even if that range is not reserved by the BIOS. */
if (IS_BROADWELL(dev_priv) || IS_GEN9_BC(dev_priv))
end = ggtt->stolen_size - 8 * 1024 * 1024;
end = resource_size(&dev_priv->dsm) - 8 * 1024 * 1024;
else
end = U64_MAX;
@ -615,10 +614,16 @@ static int intel_fbc_alloc_cfb(struct intel_crtc *crtc)
fbc->compressed_llb = compressed_llb;
GEM_BUG_ON(range_overflows_t(u64, dev_priv->dsm.start,
fbc->compressed_fb.start,
U32_MAX));
GEM_BUG_ON(range_overflows_t(u64, dev_priv->dsm.start,
fbc->compressed_llb->start,
U32_MAX));
I915_WRITE(FBC_CFB_BASE,
dev_priv->mm.stolen_base + fbc->compressed_fb.start);
dev_priv->dsm.start + fbc->compressed_fb.start);
I915_WRITE(FBC_LL_BASE,
dev_priv->mm.stolen_base + compressed_llb->start);
dev_priv->dsm.start + compressed_llb->start);
}
DRM_DEBUG_KMS("reserved %llu bytes of contiguous stolen space for FBC, threshold: %d\n",

3
drivers/gpu/drm/i915/intel_fbdev.c
View File

@ -115,7 +115,6 @@ static int intelfb_alloc(struct drm_fb_helper *helper,
struct drm_framebuffer *fb;
struct drm_device *dev = helper->dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct i915_ggtt *ggtt = &dev_priv->ggtt;
struct drm_mode_fb_cmd2 mode_cmd = {};
struct drm_i915_gem_object *obj;
int size, ret;
@ -139,7 +138,7 @@ static int intelfb_alloc(struct drm_fb_helper *helper,
* important and we should probably use that space with FBC or other
* features. */
obj = NULL;
if (size * 2 < ggtt->stolen_usable_size)
if (size * 2 < dev_priv->stolen_usable_size)
obj = i915_gem_object_create_stolen(dev_priv, size);
if (obj == NULL)
obj = i915_gem_object_create(dev_priv, size);

111
drivers/gpu/drm/i915/intel_guc.c
View File

@ -61,6 +61,7 @@ void intel_guc_init_send_regs(struct intel_guc *guc)
void intel_guc_init_early(struct intel_guc *guc)
{
intel_guc_fw_init_early(guc);
intel_guc_ct_init_early(&guc->ct);
mutex_init(&guc->send_mutex);
@ -68,6 +69,114 @@ void intel_guc_init_early(struct intel_guc *guc)
guc->notify = gen8_guc_raise_irq;
}
int intel_guc_init_wq(struct intel_guc *guc)
{
struct drm_i915_private *dev_priv = guc_to_i915(guc);
/*
* GuC log buffer flush work item has to do register access to
* send the ack to GuC and this work item, if not synced before
* suspend, can potentially get executed after the GFX device is
* suspended.
* By marking the WQ as freezable, we don't have to bother about
* flushing of this work item from the suspend hooks, the pending
* work item if any will be either executed before the suspend
* or scheduled later on resume. This way the handling of work
* item can be kept same between system suspend & rpm suspend.
*/
guc->log.runtime.flush_wq = alloc_ordered_workqueue("i915-guc_log",
WQ_HIGHPRI | WQ_FREEZABLE);
if (!guc->log.runtime.flush_wq)
return -ENOMEM;
/*
* Even though both sending GuC action, and adding a new workitem to
* GuC workqueue are serialized (each with its own locking), since
* we're using mutliple engines, it's possible that we're going to
* issue a preempt request with two (or more - each for different
* engine) workitems in GuC queue. In this situation, GuC may submit
* all of them, which will make us very confused.
* Our preemption contexts may even already be complete - before we
* even had the chance to sent the preempt action to GuC!. Rather
* than introducing yet another lock, we can just use ordered workqueue
* to make sure we're always sending a single preemption request with a
* single workitem.
*/
if (HAS_LOGICAL_RING_PREEMPTION(dev_priv) &&
USES_GUC_SUBMISSION(dev_priv)) {
guc->preempt_wq = alloc_ordered_workqueue("i915-guc_preempt",
WQ_HIGHPRI);
if (!guc->preempt_wq) {
destroy_workqueue(guc->log.runtime.flush_wq);
return -ENOMEM;
}
}
return 0;
}
void intel_guc_fini_wq(struct intel_guc *guc)
{
struct drm_i915_private *dev_priv = guc_to_i915(guc);
if (HAS_LOGICAL_RING_PREEMPTION(dev_priv) &&
USES_GUC_SUBMISSION(dev_priv))
destroy_workqueue(guc->preempt_wq);
destroy_workqueue(guc->log.runtime.flush_wq);
}
static int guc_shared_data_create(struct intel_guc *guc)
{
struct i915_vma *vma;
void *vaddr;
vma = intel_guc_allocate_vma(guc, PAGE_SIZE);
if (IS_ERR(vma))
return PTR_ERR(vma);
vaddr = i915_gem_object_pin_map(vma->obj, I915_MAP_WB);
if (IS_ERR(vaddr)) {
i915_vma_unpin_and_release(&vma);
return PTR_ERR(vaddr);
}
guc->shared_data = vma;
guc->shared_data_vaddr = vaddr;
return 0;
}
static void guc_shared_data_destroy(struct intel_guc *guc)
{
i915_gem_object_unpin_map(guc->shared_data->obj);
i915_vma_unpin_and_release(&guc->shared_data);
}
int intel_guc_init(struct intel_guc *guc)
{
struct drm_i915_private *dev_priv = guc_to_i915(guc);
int ret;
ret = guc_shared_data_create(guc);
if (ret)
return ret;
GEM_BUG_ON(!guc->shared_data);
/* We need to notify the guc whenever we change the GGTT */
i915_ggtt_enable_guc(dev_priv);
return 0;
}
void intel_guc_fini(struct intel_guc *guc)
{
struct drm_i915_private *dev_priv = guc_to_i915(guc);
i915_ggtt_disable_guc(dev_priv);
guc_shared_data_destroy(guc);
}
static u32 get_gt_type(struct drm_i915_private *dev_priv)
{
/* XXX: GT type based on PCI device ID? field seems unused by fw */
@ -128,7 +237,7 @@ void intel_guc_init_params(struct intel_guc *guc)
}
/* If GuC submission is enabled, set up additional parameters here */
if (i915_modparams.enable_guc_submission) {
if (USES_GUC_SUBMISSION(dev_priv)) {
u32 ads = guc_ggtt_offset(guc->ads_vma) >> PAGE_SHIFT;
u32 pgs = guc_ggtt_offset(dev_priv->guc.stage_desc_pool);
u32 ctx_in_16 = GUC_MAX_STAGE_DESCRIPTORS / 16;

4
drivers/gpu/drm/i915/intel_guc.h
View File

@ -119,6 +119,10 @@ static inline u32 guc_ggtt_offset(struct i915_vma *vma)
void intel_guc_init_early(struct intel_guc *guc);
void intel_guc_init_send_regs(struct intel_guc *guc);
void intel_guc_init_params(struct intel_guc *guc);
int intel_guc_init_wq(struct intel_guc *guc);
void intel_guc_fini_wq(struct intel_guc *guc);
int intel_guc_init(struct intel_guc *guc);
void intel_guc_fini(struct intel_guc *guc);
int intel_guc_send_nop(struct intel_guc *guc, const u32 *action, u32 len);
int intel_guc_send_mmio(struct intel_guc *guc, const u32 *action, u32 len);
int intel_guc_sample_forcewake(struct intel_guc *guc);

63
drivers/gpu/drm/i915/intel_guc_fw.c
View File

@ -56,45 +56,54 @@ MODULE_FIRMWARE(I915_KBL_GUC_UCODE);
#define I915_GLK_GUC_UCODE GUC_FW_PATH(glk, GLK_FW_MAJOR, GLK_FW_MINOR)
/**
* intel_guc_fw_select() - selects GuC firmware for uploading
*
* @guc: intel_guc struct
*
* Return: zero when we know firmware, non-zero in other case
*/
int intel_guc_fw_select(struct intel_guc *guc)
static void guc_fw_select(struct intel_uc_fw *guc_fw)
{
struct intel_guc *guc = container_of(guc_fw, struct intel_guc, fw);
struct drm_i915_private *dev_priv = guc_to_i915(guc);
intel_uc_fw_init(&guc->fw, INTEL_UC_FW_TYPE_GUC);
GEM_BUG_ON(guc_fw->type != INTEL_UC_FW_TYPE_GUC);
if (!HAS_GUC(dev_priv))
return;
if (i915_modparams.guc_firmware_path) {
guc->fw.path = i915_modparams.guc_firmware_path;
guc->fw.major_ver_wanted = 0;
guc->fw.minor_ver_wanted = 0;
guc_fw->path = i915_modparams.guc_firmware_path;
guc_fw->major_ver_wanted = 0;
guc_fw->minor_ver_wanted = 0;
} else if (IS_SKYLAKE(dev_priv)) {
guc->fw.path = I915_SKL_GUC_UCODE;
guc->fw.major_ver_wanted = SKL_FW_MAJOR;
guc->fw.minor_ver_wanted = SKL_FW_MINOR;
guc_fw->path = I915_SKL_GUC_UCODE;
guc_fw->major_ver_wanted = SKL_FW_MAJOR;
guc_fw->minor_ver_wanted = SKL_FW_MINOR;
} else if (IS_BROXTON(dev_priv)) {
guc->fw.path = I915_BXT_GUC_UCODE;
guc->fw.major_ver_wanted = BXT_FW_MAJOR;
guc->fw.minor_ver_wanted = BXT_FW_MINOR;
guc_fw->path = I915_BXT_GUC_UCODE;
guc_fw->major_ver_wanted = BXT_FW_MAJOR;
guc_fw->minor_ver_wanted = BXT_FW_MINOR;
} else if (IS_KABYLAKE(dev_priv) || IS_COFFEELAKE(dev_priv)) {
guc->fw.path = I915_KBL_GUC_UCODE;
guc->fw.major_ver_wanted = KBL_FW_MAJOR;
guc->fw.minor_ver_wanted = KBL_FW_MINOR;
guc_fw->path = I915_KBL_GUC_UCODE;
guc_fw->major_ver_wanted = KBL_FW_MAJOR;
guc_fw->minor_ver_wanted = KBL_FW_MINOR;
} else if (IS_GEMINILAKE(dev_priv)) {
guc->fw.path = I915_GLK_GUC_UCODE;
guc->fw.major_ver_wanted = GLK_FW_MAJOR;
guc->fw.minor_ver_wanted = GLK_FW_MINOR;
guc_fw->path = I915_GLK_GUC_UCODE;
guc_fw->major_ver_wanted = GLK_FW_MAJOR;
guc_fw->minor_ver_wanted = GLK_FW_MINOR;
} else {
DRM_ERROR("No GuC firmware known for platform with GuC!\n");
return -ENOENT;
DRM_WARN("%s: No firmware known for this platform!\n",
intel_uc_fw_type_repr(guc_fw->type));
}
}
return 0;
/**
* intel_guc_fw_init_early() - initializes GuC firmware struct
* @guc: intel_guc struct
*
* On platforms with GuC selects firmware for uploading
*/
void intel_guc_fw_init_early(struct intel_guc *guc)
{
struct intel_uc_fw *guc_fw = &guc->fw;
intel_uc_fw_init(guc_fw, INTEL_UC_FW_TYPE_GUC);
guc_fw_select(guc_fw);
}
static void guc_prepare_xfer(struct intel_guc *guc)

2
drivers/gpu/drm/i915/intel_guc_fw.h
View File

@ -27,7 +27,7 @@
struct intel_guc;
int intel_guc_fw_select(struct intel_guc *guc);
void intel_guc_fw_init_early(struct intel_guc *guc);
int intel_guc_fw_upload(struct intel_guc *guc);
#endif

29
drivers/gpu/drm/i915/intel_guc_log.c
View File

@ -411,30 +411,8 @@ static int guc_log_runtime_create(struct intel_guc *guc)
guc->log.runtime.relay_chan = guc_log_relay_chan;
INIT_WORK(&guc->log.runtime.flush_work, capture_logs_work);
/*
* GuC log buffer flush work item has to do register access to
* send the ack to GuC and this work item, if not synced before
* suspend, can potentially get executed after the GFX device is
* suspended.
* By marking the WQ as freezable, we don't have to bother about
* flushing of this work item from the suspend hooks, the pending
* work item if any will be either executed before the suspend
* or scheduled later on resume. This way the handling of work
* item can be kept same between system suspend & rpm suspend.
*/
guc->log.runtime.flush_wq = alloc_ordered_workqueue("i915-guc_log",
WQ_HIGHPRI | WQ_FREEZABLE);
if (!guc->log.runtime.flush_wq) {
DRM_ERROR("Couldn't allocate the wq for GuC logging\n");
ret = -ENOMEM;
goto err_relaychan;
}
return 0;
err_relaychan:
relay_close(guc->log.runtime.relay_chan);
err_vaddr:
i915_gem_object_unpin_map(guc->log.vma->obj);
guc->log.runtime.buf_addr = NULL;
@ -450,7 +428,6 @@ static void guc_log_runtime_destroy(struct intel_guc *guc)
if (!guc_log_has_runtime(guc))
return;
destroy_workqueue(guc->log.runtime.flush_wq);
relay_close(guc->log.runtime.relay_chan);
i915_gem_object_unpin_map(guc->log.vma->obj);
guc->log.runtime.buf_addr = NULL;
@ -505,7 +482,7 @@ static void guc_flush_logs(struct intel_guc *guc)
{
struct drm_i915_private *dev_priv = guc_to_i915(guc);
if (!i915_modparams.enable_guc_submission ||
if (!USES_GUC_SUBMISSION(dev_priv) ||
(i915_modparams.guc_log_level < 0))
return;
@ -646,7 +623,7 @@ int i915_guc_log_control(struct drm_i915_private *dev_priv, u64 control_val)
void i915_guc_log_register(struct drm_i915_private *dev_priv)
{
if (!i915_modparams.enable_guc_submission ||
if (!USES_GUC_SUBMISSION(dev_priv) ||
(i915_modparams.guc_log_level < 0))
return;
@ -657,7 +634,7 @@ void i915_guc_log_register(struct drm_i915_private *dev_priv)
void i915_guc_log_unregister(struct drm_i915_private *dev_priv)
{
if (!i915_modparams.enable_guc_submission)
if (!USES_GUC_SUBMISSION(dev_priv))
return;
mutex_lock(&dev_priv->drm.struct_mutex);

300
drivers/gpu/drm/i915/intel_guc_submission.c
View File

@ -88,7 +88,7 @@ static inline bool is_high_priority(struct intel_guc_client *client)
client->priority == GUC_CLIENT_PRIORITY_HIGH);
}
static int __reserve_doorbell(struct intel_guc_client *client)
static int reserve_doorbell(struct intel_guc_client *client)
{
unsigned long offset;
unsigned long end;
@ -120,7 +120,7 @@ static int __reserve_doorbell(struct intel_guc_client *client)
return 0;
}
static void __unreserve_doorbell(struct intel_guc_client *client)
static void unreserve_doorbell(struct intel_guc_client *client)
{
GEM_BUG_ON(client->doorbell_id == GUC_DOORBELL_INVALID);
@ -188,32 +188,21 @@ static bool has_doorbell(struct intel_guc_client *client)
return test_bit(client->doorbell_id, client->guc->doorbell_bitmap);
}
static int __create_doorbell(struct intel_guc_client *client)
static void __create_doorbell(struct intel_guc_client *client)
{
struct guc_doorbell_info *doorbell;
int err;
doorbell = __get_doorbell(client);
doorbell->db_status = GUC_DOORBELL_ENABLED;
doorbell->cookie = 0;
err = __guc_allocate_doorbell(client->guc, client->stage_id);
if (err) {
doorbell->db_status = GUC_DOORBELL_DISABLED;
DRM_ERROR("Couldn't create client %u doorbell: %d\n",
client->stage_id, err);
}
return err;
}
static int __destroy_doorbell(struct intel_guc_client *client)
static void __destroy_doorbell(struct intel_guc_client *client)
{
struct drm_i915_private *dev_priv = guc_to_i915(client->guc);
struct guc_doorbell_info *doorbell;
u16 db_id = client->doorbell_id;
GEM_BUG_ON(db_id >= GUC_DOORBELL_INVALID);
doorbell = __get_doorbell(client);
doorbell->db_status = GUC_DOORBELL_DISABLED;
@ -225,50 +214,42 @@ static int __destroy_doorbell(struct intel_guc_client *client)
*/
if (wait_for_us(!(I915_READ(GEN8_DRBREGL(db_id)) & GEN8_DRB_VALID), 10))
WARN_ONCE(true, "Doorbell never became invalid after disable\n");
return __guc_deallocate_doorbell(client->guc, client->stage_id);
}
static int create_doorbell(struct intel_guc_client *client)
{
int ret;
ret = __reserve_doorbell(client);
if (ret)
return ret;
__update_doorbell_desc(client, client->doorbell_id);
__create_doorbell(client);
ret = __create_doorbell(client);
if (ret)
goto err;
ret = __guc_allocate_doorbell(client->guc, client->stage_id);
if (ret) {
__destroy_doorbell(client);
__update_doorbell_desc(client, GUC_DOORBELL_INVALID);
DRM_ERROR("Couldn't create client %u doorbell: %d\n",
client->stage_id, ret);
return ret;
}
return 0;
err:
__update_doorbell_desc(client, GUC_DOORBELL_INVALID);
__unreserve_doorbell(client);
return ret;
}
static int destroy_doorbell(struct intel_guc_client *client)
{
int err;
int ret;
GEM_BUG_ON(!has_doorbell(client));
/* XXX: wait for any interrupts */
/* XXX: wait for workqueue to drain */
err = __destroy_doorbell(client);
if (err)
return err;
__destroy_doorbell(client);
ret = __guc_deallocate_doorbell(client->guc, client->stage_id);
if (ret)
DRM_ERROR("Couldn't destroy client %u doorbell: %d\n",
client->stage_id, ret);
__update_doorbell_desc(client, GUC_DOORBELL_INVALID);
__unreserve_doorbell(client);
return 0;
return ret;
}
static unsigned long __select_cacheline(struct intel_guc *guc)
@ -447,33 +428,6 @@ static void guc_stage_desc_fini(struct intel_guc *guc,
memset(desc, 0, sizeof(*desc));
}
static int guc_shared_data_create(struct intel_guc *guc)
{
struct i915_vma *vma;
void *vaddr;
vma = intel_guc_allocate_vma(guc, PAGE_SIZE);
if (IS_ERR(vma))
return PTR_ERR(vma);
vaddr = i915_gem_object_pin_map(vma->obj, I915_MAP_WB);
if (IS_ERR(vaddr)) {
i915_vma_unpin_and_release(&vma);
return PTR_ERR(vaddr);
}
guc->shared_data = vma;
guc->shared_data_vaddr = vaddr;
return 0;
}
static void guc_shared_data_destroy(struct intel_guc *guc)
{
i915_gem_object_unpin_map(guc->shared_data->obj);
i915_vma_unpin_and_release(&guc->shared_data);
}
/* Construct a Work Item and append it to the GuC's Work Queue */
static void guc_wq_item_append(struct intel_guc_client *client,
u32 target_engine, u32 context_desc,
@ -866,83 +820,47 @@ static bool doorbell_ok(struct intel_guc *guc, u16 db_id)
return false;
}
/*
* If the GuC thinks that the doorbell is unassigned (e.g. because we reset and
* reloaded the GuC FW) we can use this function to tell the GuC to reassign the
* doorbell to the rightful owner.
*/
static int __reset_doorbell(struct intel_guc_client *client, u16 db_id)
static bool guc_verify_doorbells(struct intel_guc *guc)
{
int err;
u16 db_id;
__update_doorbell_desc(client, db_id);
err = __create_doorbell(client);
if (!err)
err = __destroy_doorbell(client);
for (db_id = 0; db_id < GUC_NUM_DOORBELLS; ++db_id)
if (!doorbell_ok(guc, db_id))
return false;
return err;
return true;
}
/*
* Set up & tear down each unused doorbell in turn, to ensure that all doorbell
* HW is (re)initialised. For that end, we might have to borrow the first
* client. Also, tell GuC about all the doorbells in use by all clients.
* We do this because the KMD, the GuC and the doorbell HW can easily go out of
* sync (e.g. we can reset the GuC, but not the doorbel HW).
*/
static int guc_init_doorbell_hw(struct intel_guc *guc)
static int guc_clients_doorbell_init(struct intel_guc *guc)
{
struct intel_guc_client *client = guc->execbuf_client;
bool recreate_first_client = false;
u16 db_id;
int ret;
/* For unused doorbells, make sure they are disabled */
for_each_clear_bit(db_id, guc->doorbell_bitmap, GUC_NUM_DOORBELLS) {
if (doorbell_ok(guc, db_id))
continue;
if (has_doorbell(client)) {
/* Borrow execbuf_client (we will recreate it later) */
destroy_doorbell(client);
recreate_first_client = true;
}
ret = __reset_doorbell(client, db_id);
WARN(ret, "Doorbell %u reset failed, err %d\n", db_id, ret);
}
if (recreate_first_client) {
ret = __reserve_doorbell(client);
if (unlikely(ret)) {
DRM_ERROR("Couldn't re-reserve first client db: %d\n",
ret);
return ret;
}
__update_doorbell_desc(client, client->doorbell_id);
}
/* Now for every client (and not only execbuf_client) make sure their
* doorbells are known by the GuC
*/
ret = __create_doorbell(guc->execbuf_client);
ret = create_doorbell(guc->execbuf_client);
if (ret)
return ret;
ret = __create_doorbell(guc->preempt_client);
ret = create_doorbell(guc->preempt_client);
if (ret) {
__destroy_doorbell(guc->execbuf_client);
destroy_doorbell(guc->execbuf_client);
return ret;
}
/* Read back & verify all (used & unused) doorbell registers */
for (db_id = 0; db_id < GUC_NUM_DOORBELLS; ++db_id)
WARN_ON(!doorbell_ok(guc, db_id));
return 0;
}
static void guc_clients_doorbell_fini(struct intel_guc *guc)
{
/*
* By the time we're here, GuC has already been reset.
* Instead of trying (in vain) to communicate with it, let's just
* cleanup the doorbell HW and our internal state.
*/
__destroy_doorbell(guc->preempt_client);
__update_doorbell_desc(guc->preempt_client, GUC_DOORBELL_INVALID);
__destroy_doorbell(guc->execbuf_client);
__update_doorbell_desc(guc->execbuf_client, GUC_DOORBELL_INVALID);
}
/**
* guc_client_alloc() - Allocate an intel_guc_client
* @dev_priv: driver private data structure
@ -1018,7 +936,7 @@ guc_client_alloc(struct drm_i915_private *dev_priv,
guc_proc_desc_init(guc, client);
guc_stage_desc_init(guc, client);
ret = create_doorbell(client);
ret = reserve_doorbell(client);
if (ret)
goto err_vaddr;
@ -1042,16 +960,7 @@ err_client:
static void guc_client_free(struct intel_guc_client *client)
{
/*
* XXX: wait for any outstanding submissions before freeing memory.
* Be sure to drop any locks
*/
/* FIXME: in many cases, by the time we get here the GuC has been
* reset, so we cannot destroy the doorbell properly. Ignore the
* error message for now
*/
destroy_doorbell(client);
unreserve_doorbell(client);
guc_stage_desc_fini(client->guc, client);
i915_gem_object_unpin_map(client->vma->obj);
i915_vma_unpin_and_release(&client->vma);
@ -1214,57 +1123,15 @@ static void guc_ads_destroy(struct intel_guc *guc)
i915_vma_unpin_and_release(&guc->ads_vma);
}
static int guc_preempt_work_create(struct intel_guc *guc)
{
struct drm_i915_private *dev_priv = guc_to_i915(guc);
struct intel_engine_cs *engine;
enum intel_engine_id id;
/*
* Even though both sending GuC action, and adding a new workitem to
* GuC workqueue are serialized (each with its own locking), since
* we're using mutliple engines, it's possible that we're going to
* issue a preempt request with two (or more - each for different
* engine) workitems in GuC queue. In this situation, GuC may submit
* all of them, which will make us very confused.
* Our preemption contexts may even already be complete - before we
* even had the chance to sent the preempt action to GuC!. Rather
* than introducing yet another lock, we can just use ordered workqueue
* to make sure we're always sending a single preemption request with a
* single workitem.
*/
guc->preempt_wq = alloc_ordered_workqueue("i915-guc_preempt",
WQ_HIGHPRI);
if (!guc->preempt_wq)
return -ENOMEM;
for_each_engine(engine, dev_priv, id) {
guc->preempt_work[id].engine = engine;
INIT_WORK(&guc->preempt_work[id].work, inject_preempt_context);
}
return 0;
}
static void guc_preempt_work_destroy(struct intel_guc *guc)
{
struct drm_i915_private *dev_priv = guc_to_i915(guc);
struct intel_engine_cs *engine;
enum intel_engine_id id;
for_each_engine(engine, dev_priv, id)
cancel_work_sync(&guc->preempt_work[id].work);
destroy_workqueue(guc->preempt_wq);
guc->preempt_wq = NULL;
}
/*
* Set up the memory resources to be shared with the GuC (via the GGTT)
* at firmware loading time.
*/
int intel_guc_submission_init(struct intel_guc *guc)
{
struct drm_i915_private *dev_priv = guc_to_i915(guc);
struct intel_engine_cs *engine;
enum intel_engine_id id;
int ret;
if (guc->stage_desc_pool)
@ -1279,33 +1146,29 @@ int intel_guc_submission_init(struct intel_guc *guc)
*/
GEM_BUG_ON(!guc->stage_desc_pool);
ret = guc_shared_data_create(guc);
if (ret)
goto err_stage_desc_pool;
GEM_BUG_ON(!guc->shared_data);
ret = intel_guc_log_create(guc);
if (ret < 0)
goto err_shared_data;
ret = guc_preempt_work_create(guc);
if (ret)
goto err_log;
GEM_BUG_ON(!guc->preempt_wq);
goto err_stage_desc_pool;
ret = guc_ads_create(guc);
if (ret < 0)
goto err_wq;
goto err_log;
GEM_BUG_ON(!guc->ads_vma);
WARN_ON(!guc_verify_doorbells(guc));
ret = guc_clients_create(guc);
if (ret)
return ret;
for_each_engine(engine, dev_priv, id) {
guc->preempt_work[id].engine = engine;
INIT_WORK(&guc->preempt_work[id].work, inject_preempt_context);
}
return 0;
err_wq:
guc_preempt_work_destroy(guc);
err_log:
intel_guc_log_destroy(guc);
err_shared_data:
guc_shared_data_destroy(guc);
err_stage_desc_pool:
guc_stage_desc_pool_destroy(guc);
return ret;
@ -1313,10 +1176,18 @@ err_stage_desc_pool:
void intel_guc_submission_fini(struct intel_guc *guc)
{
struct drm_i915_private *dev_priv = guc_to_i915(guc);
struct intel_engine_cs *engine;
enum intel_engine_id id;
for_each_engine(engine, dev_priv, id)
cancel_work_sync(&guc->preempt_work[id].work);
guc_clients_destroy(guc);
WARN_ON(!guc_verify_doorbells(guc));
guc_ads_destroy(guc);
guc_preempt_work_destroy(guc);
intel_guc_log_destroy(guc);
guc_shared_data_destroy(guc);
guc_stage_desc_pool_destroy(guc);
}
@ -1420,28 +1291,18 @@ int intel_guc_submission_enable(struct intel_guc *guc)
sizeof(struct guc_wq_item) *
I915_NUM_ENGINES > GUC_WQ_SIZE);
/*
* We're being called on both module initialization and on reset,
* until this flow is changed, we're using regular client presence to
* determine which case are we in, and whether we should allocate new
* clients or just reset their workqueues.
*/
if (!guc->execbuf_client) {
err = guc_clients_create(guc);
if (err)
return err;
} else {
guc_reset_wq(guc->execbuf_client);
guc_reset_wq(guc->preempt_client);
}
GEM_BUG_ON(!guc->execbuf_client);
guc_reset_wq(guc->execbuf_client);
guc_reset_wq(guc->preempt_client);
err = intel_guc_sample_forcewake(guc);
if (err)
goto err_free_clients;
return err;
err = guc_init_doorbell_hw(guc);
err = guc_clients_doorbell_init(guc);
if (err)
goto err_free_clients;
return err;
/* Take over from manual control of ELSP (execlists) */
guc_interrupts_capture(dev_priv);
@ -1458,10 +1319,6 @@ int intel_guc_submission_enable(struct intel_guc *guc)
}
return 0;
err_free_clients:
guc_clients_destroy(guc);
return err;
}
void intel_guc_submission_disable(struct intel_guc *guc)
@ -1471,11 +1328,10 @@ void intel_guc_submission_disable(struct intel_guc *guc)
GEM_BUG_ON(dev_priv->gt.awake); /* GT should be parked first */
guc_interrupts_release(dev_priv);
guc_clients_doorbell_fini(guc);
/* Revert back to manual ELSP submission */
intel_engines_reset_default_submission(dev_priv);
guc_clients_destroy(guc);
}
#if IS_ENABLED(CONFIG_DRM_I915_SELFTEST)

2
drivers/gpu/drm/i915/intel_guc_submission.h
View File

@ -77,5 +77,7 @@ int intel_guc_submission_init(struct intel_guc *guc);
int intel_guc_submission_enable(struct intel_guc *guc);
void intel_guc_submission_disable(struct intel_guc *guc);
void intel_guc_submission_fini(struct intel_guc *guc);
int intel_guc_preempt_work_create(struct intel_guc *guc);
void intel_guc_preempt_work_destroy(struct intel_guc *guc);
#endif

2
drivers/gpu/drm/i915/intel_gvt.c
View File

@ -95,7 +95,7 @@ int intel_gvt_init(struct drm_i915_private *dev_priv)
return 0;
}
if (i915_modparams.enable_guc_submission) {
if (USES_GUC_SUBMISSION(dev_priv)) {
DRM_ERROR("i915 GVT-g loading failed due to Graphics virtualization is not yet supported with GuC submission\n");
return -EIO;
}

7
drivers/gpu/drm/i915/intel_hangcheck.c
View File

@ -349,13 +349,18 @@ static void hangcheck_accumulate_sample(struct intel_engine_cs *engine,
case ENGINE_ACTIVE_HEAD:
case ENGINE_ACTIVE_SUBUNITS:
/* Seqno stuck with still active engine gets leeway,
/*
* Seqno stuck with still active engine gets leeway,
* in hopes that it is just a long shader.
*/
timeout = I915_SEQNO_DEAD_TIMEOUT;
break;
case ENGINE_DEAD:
if (drm_debug & DRM_UT_DRIVER) {
struct drm_printer p = drm_debug_printer("hangcheck");
intel_engine_dump(engine, &p, "%s", engine->name);
}
break;
default:

2
drivers/gpu/drm/i915/intel_hdmi.c
View File

@ -1383,7 +1383,7 @@ static bool hdmi_12bpc_possible(const struct intel_crtc_state *crtc_state)
}
}
/* Display Wa #1139 */
/* Display WA #1139: glk */
if (IS_GLK_REVID(dev_priv, 0, GLK_REVID_A1) &&
crtc_state->base.adjusted_mode.htotal > 5460)
return false;

81
drivers/gpu/drm/i915/intel_huc.c
View File

@ -77,42 +77,56 @@ MODULE_FIRMWARE(I915_KBL_HUC_UCODE);
#define I915_GLK_HUC_UCODE HUC_FW_PATH(glk, GLK_HUC_FW_MAJOR, \
GLK_HUC_FW_MINOR, GLK_BLD_NUM)
/**
* intel_huc_select_fw() - selects HuC firmware for loading
* @huc: intel_huc struct
*/
void intel_huc_select_fw(struct intel_huc *huc)
static void huc_fw_select(struct intel_uc_fw *huc_fw)
{
struct intel_huc *huc = container_of(huc_fw, struct intel_huc, fw);
struct drm_i915_private *dev_priv = huc_to_i915(huc);
intel_uc_fw_init(&huc->fw, INTEL_UC_FW_TYPE_HUC);
GEM_BUG_ON(huc_fw->type != INTEL_UC_FW_TYPE_HUC);
if (!HAS_HUC(dev_priv))
return;
if (i915_modparams.huc_firmware_path) {
huc->fw.path = i915_modparams.huc_firmware_path;
huc->fw.major_ver_wanted = 0;
huc->fw.minor_ver_wanted = 0;
huc_fw->path = i915_modparams.huc_firmware_path;
huc_fw->major_ver_wanted = 0;
huc_fw->minor_ver_wanted = 0;
} else if (IS_SKYLAKE(dev_priv)) {
huc->fw.path = I915_SKL_HUC_UCODE;
huc->fw.major_ver_wanted = SKL_HUC_FW_MAJOR;
huc->fw.minor_ver_wanted = SKL_HUC_FW_MINOR;
huc_fw->path = I915_SKL_HUC_UCODE;
huc_fw->major_ver_wanted = SKL_HUC_FW_MAJOR;
huc_fw->minor_ver_wanted = SKL_HUC_FW_MINOR;
} else if (IS_BROXTON(dev_priv)) {
huc->fw.path = I915_BXT_HUC_UCODE;
huc->fw.major_ver_wanted = BXT_HUC_FW_MAJOR;
huc->fw.minor_ver_wanted = BXT_HUC_FW_MINOR;
huc_fw->path = I915_BXT_HUC_UCODE;
huc_fw->major_ver_wanted = BXT_HUC_FW_MAJOR;
huc_fw->minor_ver_wanted = BXT_HUC_FW_MINOR;
} else if (IS_KABYLAKE(dev_priv) || IS_COFFEELAKE(dev_priv)) {
huc->fw.path = I915_KBL_HUC_UCODE;
huc->fw.major_ver_wanted = KBL_HUC_FW_MAJOR;
huc->fw.minor_ver_wanted = KBL_HUC_FW_MINOR;
huc_fw->path = I915_KBL_HUC_UCODE;
huc_fw->major_ver_wanted = KBL_HUC_FW_MAJOR;
huc_fw->minor_ver_wanted = KBL_HUC_FW_MINOR;
} else if (IS_GEMINILAKE(dev_priv)) {
huc->fw.path = I915_GLK_HUC_UCODE;
huc->fw.major_ver_wanted = GLK_HUC_FW_MAJOR;
huc->fw.minor_ver_wanted = GLK_HUC_FW_MINOR;
huc_fw->path = I915_GLK_HUC_UCODE;
huc_fw->major_ver_wanted = GLK_HUC_FW_MAJOR;
huc_fw->minor_ver_wanted = GLK_HUC_FW_MINOR;
} else {
DRM_ERROR("No HuC firmware known for platform with HuC!\n");
return;
DRM_WARN("%s: No firmware known for this platform!\n",
intel_uc_fw_type_repr(huc_fw->type));
}
}
/**
* intel_huc_init_early() - initializes HuC struct
* @huc: intel_huc struct
*
* On platforms with HuC selects firmware for uploading
*/
void intel_huc_init_early(struct intel_huc *huc)
{
struct intel_uc_fw *huc_fw = &huc->fw;
intel_uc_fw_init(huc_fw, INTEL_UC_FW_TYPE_HUC);
huc_fw_select(huc_fw);
}
/**
* huc_ucode_xfer() - DMA's the firmware
* @dev_priv: the drm_i915_private device
@ -167,17 +181,17 @@ static int huc_ucode_xfer(struct intel_uc_fw *huc_fw, struct i915_vma *vma)
* intel_huc_init_hw() - load HuC uCode to device
* @huc: intel_huc structure
*
* Called from guc_setup() during driver loading and also after a GPU reset.
* Be note that HuC loading must be done before GuC loading.
* Called from intel_uc_init_hw() during driver loading and also after a GPU
* reset. Be note that HuC loading must be done before GuC loading.
*
* The firmware image should have already been fetched into memory by the
* earlier call to intel_huc_init(), so here we need only check that
* earlier call to intel_uc_init_fw(), so here we need only check that
* is succeeded, and then transfer the image to the h/w.
*
*/
void intel_huc_init_hw(struct intel_huc *huc)
int intel_huc_init_hw(struct intel_huc *huc)
{
intel_uc_fw_upload(&huc->fw, huc_ucode_xfer);
return intel_uc_fw_upload(&huc->fw, huc_ucode_xfer);
}
/**
@ -191,7 +205,7 @@ void intel_huc_init_hw(struct intel_huc *huc)
* signature through intel_guc_auth_huc(). It then waits for 50ms for
* firmware verification ACK and unpins the object.
*/
void intel_huc_auth(struct intel_huc *huc)
int intel_huc_auth(struct intel_huc *huc)
{
struct drm_i915_private *i915 = huc_to_i915(huc);
struct intel_guc *guc = &i915->guc;
@ -199,14 +213,14 @@ void intel_huc_auth(struct intel_huc *huc)
int ret;
if (huc->fw.load_status != INTEL_UC_FIRMWARE_SUCCESS)
return;
return -ENOEXEC;
vma = i915_gem_object_ggtt_pin(huc->fw.obj, NULL, 0, 0,
PIN_OFFSET_BIAS | GUC_WOPCM_TOP);
if (IS_ERR(vma)) {
DRM_ERROR("failed to pin huc fw object %d\n",
(int)PTR_ERR(vma));
return;
ret = PTR_ERR(vma);
DRM_ERROR("HuC: Failed to pin huc fw object %d\n", ret);
return ret;
}
ret = intel_guc_auth_huc(guc,
@ -229,4 +243,5 @@ void intel_huc_auth(struct intel_huc *huc)
out:
i915_vma_unpin(vma);
return ret;
}

6
drivers/gpu/drm/i915/intel_huc.h
View File

@ -34,8 +34,8 @@ struct intel_huc {
/* HuC-specific additions */
};
void intel_huc_select_fw(struct intel_huc *huc);
void intel_huc_init_hw(struct intel_huc *huc);
void intel_huc_auth(struct intel_huc *huc);
void intel_huc_init_early(struct intel_huc *huc);
int intel_huc_init_hw(struct intel_huc *huc);
int intel_huc_auth(struct intel_huc *huc);
#endif

13
drivers/gpu/drm/i915/intel_lrc.c
View File

@ -431,8 +431,6 @@ static inline void elsp_write(u64 desc, u32 __iomem *elsp)
static void execlists_submit_ports(struct intel_engine_cs *engine)
{
struct execlist_port *port = engine->execlists.port;
u32 __iomem *elsp =
engine->i915->regs + i915_mmio_reg_offset(RING_ELSP(engine));
unsigned int n;
for (n = execlists_num_ports(&engine->execlists); n--; ) {
@ -458,7 +456,7 @@ static void execlists_submit_ports(struct intel_engine_cs *engine)
desc = 0;
}
elsp_write(desc, elsp);
elsp_write(desc, engine->execlists.elsp);
}
execlists_clear_active(&engine->execlists, EXECLISTS_ACTIVE_HWACK);
}
@ -496,8 +494,6 @@ static void inject_preempt_context(struct intel_engine_cs *engine)
{
struct intel_context *ce =
&engine->i915->preempt_context->engine[engine->id];
u32 __iomem *elsp =
engine->i915->regs + i915_mmio_reg_offset(RING_ELSP(engine));
unsigned int n;
GEM_BUG_ON(engine->i915->preempt_context->hw_id != PREEMPT_ID);
@ -510,9 +506,9 @@ static void inject_preempt_context(struct intel_engine_cs *engine)
GEM_TRACE("\n");
for (n = execlists_num_ports(&engine->execlists); --n; )
elsp_write(0, elsp);
elsp_write(0, engine->execlists.elsp);
elsp_write(ce->lrc_desc, elsp);
elsp_write(ce->lrc_desc, engine->execlists.elsp);
execlists_clear_active(&engine->execlists, EXECLISTS_ACTIVE_HWACK);
}
@ -1509,6 +1505,9 @@ static int gen8_init_common_ring(struct intel_engine_cs *engine)
execlists->csb_head = -1;
execlists->active = 0;
execlists->elsp =
dev_priv->regs + i915_mmio_reg_offset(RING_ELSP(engine));
/* After a GPU reset, we may have requests to replay */
if (execlists->first)
tasklet_schedule(&execlists->tasklet);

4
drivers/gpu/drm/i915/intel_overlay.c
View File

@ -219,7 +219,7 @@ intel_overlay_map_regs(struct intel_overlay *overlay)
if (OVERLAY_NEEDS_PHYSICAL(dev_priv))
regs = (struct overlay_registers __iomem *)overlay->reg_bo->phys_handle->vaddr;
else
regs = io_mapping_map_wc(&dev_priv->ggtt.mappable,
regs = io_mapping_map_wc(&dev_priv->ggtt.iomap,
overlay->flip_addr,
PAGE_SIZE);
@ -1508,7 +1508,7 @@ intel_overlay_map_regs_atomic(struct intel_overlay *overlay)
regs = (struct overlay_registers __iomem *)
overlay->reg_bo->phys_handle->vaddr;
else
regs = io_mapping_map_atomic_wc(&dev_priv->ggtt.mappable,
regs = io_mapping_map_atomic_wc(&dev_priv->ggtt.iomap,
overlay->flip_addr);
return regs;

35
drivers/gpu/drm/i915/intel_pm.c
View File

@ -58,7 +58,7 @@ static void gen9_init_clock_gating(struct drm_i915_private *dev_priv)
if (HAS_LLC(dev_priv)) {
/*
* WaCompressedResourceDisplayNewHashMode:skl,kbl
* Display WA#0390: skl,kbl
* Display WA #0390: skl,kbl
*
* Must match Sampler, Pixel Back End, and Media. See
* WaCompressedResourceSamplerPbeMediaNewHashMode.
@ -6416,7 +6416,6 @@ static void valleyview_disable_rps(struct drm_i915_private *dev_priv)
static bool bxt_check_bios_rc6_setup(struct drm_i915_private *dev_priv)
{
struct i915_ggtt *ggtt = &dev_priv->ggtt;
bool enable_rc6 = true;
unsigned long rc6_ctx_base;
u32 rc_ctl;
@ -6441,9 +6440,8 @@ static bool bxt_check_bios_rc6_setup(struct drm_i915_private *dev_priv)
* for this check.
*/
rc6_ctx_base = I915_READ(RC6_CTX_BASE) & RC6_CTX_BASE_MASK;
if (!((rc6_ctx_base >= ggtt->stolen_reserved_base) &&
(rc6_ctx_base + PAGE_SIZE <= ggtt->stolen_reserved_base +
ggtt->stolen_reserved_size))) {
if (!((rc6_ctx_base >= dev_priv->dsm_reserved.start) &&
(rc6_ctx_base + PAGE_SIZE < dev_priv->dsm_reserved.end))) {
DRM_DEBUG_DRIVER("RC6 Base address not as expected.\n");
enable_rc6 = false;
}
@ -7020,7 +7018,7 @@ static void valleyview_check_pctx(struct drm_i915_private *dev_priv)
{
unsigned long pctx_addr = I915_READ(VLV_PCBR) & ~4095;
WARN_ON(pctx_addr != dev_priv->mm.stolen_base +
WARN_ON(pctx_addr != dev_priv->dsm.start +
dev_priv->vlv_pctx->stolen->start);
}
@ -7035,16 +7033,15 @@ static void cherryview_check_pctx(struct drm_i915_private *dev_priv)
static void cherryview_setup_pctx(struct drm_i915_private *dev_priv)
{
struct i915_ggtt *ggtt = &dev_priv->ggtt;
unsigned long pctx_paddr, paddr;
resource_size_t pctx_paddr, paddr;
resource_size_t pctx_size = 32*1024;
u32 pcbr;
int pctx_size = 32*1024;
pcbr = I915_READ(VLV_PCBR);
if ((pcbr >> VLV_PCBR_ADDR_SHIFT) == 0) {
DRM_DEBUG_DRIVER("BIOS didn't set up PCBR, fixing up\n");
paddr = (dev_priv->mm.stolen_base +
(ggtt->stolen_size - pctx_size));
paddr = dev_priv->dsm.end + 1 - pctx_size;
GEM_BUG_ON(paddr > U32_MAX);
pctx_paddr = (paddr & (~4095));
I915_WRITE(VLV_PCBR, pctx_paddr);
@ -7056,16 +7053,16 @@ static void cherryview_setup_pctx(struct drm_i915_private *dev_priv)
static void valleyview_setup_pctx(struct drm_i915_private *dev_priv)
{
struct drm_i915_gem_object *pctx;
unsigned long pctx_paddr;
resource_size_t pctx_paddr;
resource_size_t pctx_size = 24*1024;
u32 pcbr;
int pctx_size = 24*1024;
pcbr = I915_READ(VLV_PCBR);
if (pcbr) {
/* BIOS set it up already, grab the pre-alloc'd space */
int pcbr_offset;
resource_size_t pcbr_offset;
pcbr_offset = (pcbr & (~4095)) - dev_priv->mm.stolen_base;
pcbr_offset = (pcbr & (~4095)) - dev_priv->dsm.start;
pctx = i915_gem_object_create_stolen_for_preallocated(dev_priv,
pcbr_offset,
I915_GTT_OFFSET_NONE,
@ -7089,7 +7086,11 @@ static void valleyview_setup_pctx(struct drm_i915_private *dev_priv)
goto out;
}
pctx_paddr = dev_priv->mm.stolen_base + pctx->stolen->start;
GEM_BUG_ON(range_overflows_t(u64,
dev_priv->dsm.start,
pctx->stolen->start,
U32_MAX));
pctx_paddr = dev_priv->dsm.start + pctx->stolen->start;
I915_WRITE(VLV_PCBR, pctx_paddr);
out:
@ -8417,7 +8418,7 @@ static void cnp_init_clock_gating(struct drm_i915_private *dev_priv)
if (!HAS_PCH_CNP(dev_priv))
return;
/* Wa #1181 */
/* Display WA #1181: cnp */
I915_WRITE(SOUTH_DSPCLK_GATE_D, I915_READ(SOUTH_DSPCLK_GATE_D) |
CNP_PWM_CGE_GATING_DISABLE);
}

10
drivers/gpu/drm/i915/intel_ringbuffer.h
View File

@ -199,6 +199,11 @@ struct intel_engine_execlists {
*/
bool no_priolist;
/**
* @elsp: the ExecList Submission Port register
*/
u32 __iomem *elsp;
/**
* @port: execlist port states
*
@ -1008,7 +1013,10 @@ unsigned int intel_engines_has_context_isolation(struct drm_i915_private *i915);
bool intel_engine_can_store_dword(struct intel_engine_cs *engine);
void intel_engine_dump(struct intel_engine_cs *engine, struct drm_printer *p);
__printf(3, 4)
void intel_engine_dump(struct intel_engine_cs *engine,
struct drm_printer *m,
const char *header, ...);
struct intel_engine_cs *
intel_engine_lookup_user(struct drm_i915_private *i915, u8 class, u8 instance);

5
drivers/gpu/drm/i915/intel_runtime_pm.c
View File

@ -130,6 +130,8 @@ intel_display_power_domain_str(enum intel_display_power_domain domain)
return "INIT";
case POWER_DOMAIN_MODESET:
return "MODESET";
case POWER_DOMAIN_GT_IRQ:
return "GT_IRQ";
default:
MISSING_CASE(domain);
return "?";
@ -1705,6 +1707,7 @@ void intel_display_power_put(struct drm_i915_private *dev_priv,
BIT_ULL(POWER_DOMAIN_INIT))
#define SKL_DISPLAY_DC_OFF_POWER_DOMAINS ( \
SKL_DISPLAY_POWERWELL_2_POWER_DOMAINS | \
BIT_ULL(POWER_DOMAIN_GT_IRQ) | \
BIT_ULL(POWER_DOMAIN_MODESET) | \
BIT_ULL(POWER_DOMAIN_AUX_A) | \
BIT_ULL(POWER_DOMAIN_INIT))
@ -1727,6 +1730,7 @@ void intel_display_power_put(struct drm_i915_private *dev_priv,
BIT_ULL(POWER_DOMAIN_INIT))
#define BXT_DISPLAY_DC_OFF_POWER_DOMAINS ( \
BXT_DISPLAY_POWERWELL_2_POWER_DOMAINS | \
BIT_ULL(POWER_DOMAIN_GT_IRQ) | \
BIT_ULL(POWER_DOMAIN_MODESET) | \
BIT_ULL(POWER_DOMAIN_AUX_A) | \
BIT_ULL(POWER_DOMAIN_INIT))
@ -1785,6 +1789,7 @@ void intel_display_power_put(struct drm_i915_private *dev_priv,
BIT_ULL(POWER_DOMAIN_INIT))
#define GLK_DISPLAY_DC_OFF_POWER_DOMAINS ( \
GLK_DISPLAY_POWERWELL_2_POWER_DOMAINS | \
BIT_ULL(POWER_DOMAIN_GT_IRQ) | \
BIT_ULL(POWER_DOMAIN_MODESET) | \
BIT_ULL(POWER_DOMAIN_AUX_A) | \
BIT_ULL(POWER_DOMAIN_INIT))

249
drivers/gpu/drm/i915/intel_uc.c
View File

@ -24,6 +24,7 @@
#include "intel_uc.h"
#include "intel_guc_submission.h"
#include "intel_guc.h"
#include "i915_drv.h"
/* Reset GuC providing us with fresh state for both GuC and HuC.
@ -47,55 +48,93 @@ static int __intel_uc_reset_hw(struct drm_i915_private *dev_priv)
return ret;
}
static int __get_platform_enable_guc(struct drm_i915_private *dev_priv)
{
struct intel_uc_fw *guc_fw = &dev_priv->guc.fw;
struct intel_uc_fw *huc_fw = &dev_priv->huc.fw;
int enable_guc = 0;
/* Default is to enable GuC/HuC if we know their firmwares */
if (intel_uc_fw_is_selected(guc_fw))
enable_guc |= ENABLE_GUC_SUBMISSION;
if (intel_uc_fw_is_selected(huc_fw))
enable_guc |= ENABLE_GUC_LOAD_HUC;
/* Any platform specific fine-tuning can be done here */
return enable_guc;
}
/**
* intel_uc_sanitize_options - sanitize uC related modparam options
* @dev_priv: device private
*
* In case of "enable_guc" option this function will attempt to modify
* it only if it was initially set to "auto(-1)". Default value for this
* modparam varies between platforms and it is hardcoded in driver code.
* Any other modparam value is only monitored against availability of the
* related hardware or firmware definitions.
*/
void intel_uc_sanitize_options(struct drm_i915_private *dev_priv)
{
if (!HAS_GUC(dev_priv)) {
if (i915_modparams.enable_guc_loading > 0 ||
i915_modparams.enable_guc_submission > 0)
DRM_INFO("Ignoring GuC options, no hardware\n");
i915_modparams.enable_guc_loading = 0;
i915_modparams.enable_guc_submission = 0;
return;
}
struct intel_uc_fw *guc_fw = &dev_priv->guc.fw;
struct intel_uc_fw *huc_fw = &dev_priv->huc.fw;
/* A negative value means "use platform default" */
if (i915_modparams.enable_guc_loading < 0)
i915_modparams.enable_guc_loading = HAS_GUC_UCODE(dev_priv);
if (i915_modparams.enable_guc < 0)
i915_modparams.enable_guc = __get_platform_enable_guc(dev_priv);
/* Verify firmware version */
if (i915_modparams.enable_guc_loading) {
if (HAS_HUC_UCODE(dev_priv))
intel_huc_select_fw(&dev_priv->huc);
DRM_DEBUG_DRIVER("enable_guc=%d (submission:%s huc:%s)\n",
i915_modparams.enable_guc,
yesno(intel_uc_is_using_guc_submission()),
yesno(intel_uc_is_using_huc()));
if (intel_guc_fw_select(&dev_priv->guc))
i915_modparams.enable_guc_loading = 0;
/* Verify GuC firmware availability */
if (intel_uc_is_using_guc() && !intel_uc_fw_is_selected(guc_fw)) {
DRM_WARN("Incompatible option detected: enable_guc=%d, %s!\n",
i915_modparams.enable_guc,
!HAS_GUC(dev_priv) ? "no GuC hardware" :
"no GuC firmware");
}
/* Can't enable guc submission without guc loaded */
if (!i915_modparams.enable_guc_loading)
i915_modparams.enable_guc_submission = 0;
/* Verify HuC firmware availability */
if (intel_uc_is_using_huc() && !intel_uc_fw_is_selected(huc_fw)) {
DRM_WARN("Incompatible option detected: enable_guc=%d, %s!\n",
i915_modparams.enable_guc,
!HAS_HUC(dev_priv) ? "no HuC hardware" :
"no HuC firmware");
}
/* A negative value means "use platform default" */
if (i915_modparams.enable_guc_submission < 0)
i915_modparams.enable_guc_submission = HAS_GUC_SCHED(dev_priv);
/* Make sure that sanitization was done */
GEM_BUG_ON(i915_modparams.enable_guc < 0);
}
void intel_uc_init_early(struct drm_i915_private *dev_priv)
{
intel_guc_init_early(&dev_priv->guc);
intel_huc_init_early(&dev_priv->huc);
}
void intel_uc_init_fw(struct drm_i915_private *dev_priv)
{
intel_uc_fw_fetch(dev_priv, &dev_priv->huc.fw);
if (!USES_GUC(dev_priv))
return;
if (USES_HUC(dev_priv))
intel_uc_fw_fetch(dev_priv, &dev_priv->huc.fw);
intel_uc_fw_fetch(dev_priv, &dev_priv->guc.fw);
}
void intel_uc_fini_fw(struct drm_i915_private *dev_priv)
{
if (!USES_GUC(dev_priv))
return;
intel_uc_fw_fini(&dev_priv->guc.fw);
intel_uc_fw_fini(&dev_priv->huc.fw);
if (USES_HUC(dev_priv))
intel_uc_fw_fini(&dev_priv->huc.fw);
}
/**
@ -149,30 +188,91 @@ static void guc_disable_communication(struct intel_guc *guc)
guc->send = intel_guc_send_nop;
}
int intel_uc_init_hw(struct drm_i915_private *dev_priv)
int intel_uc_init_wq(struct drm_i915_private *dev_priv)
{
struct intel_guc *guc = &dev_priv->guc;
int ret, attempts;
int ret;
if (!i915_modparams.enable_guc_loading)
if (!USES_GUC(dev_priv))
return 0;
guc_disable_communication(guc);
gen9_reset_guc_interrupts(dev_priv);
ret = intel_guc_init_wq(&dev_priv->guc);
if (ret) {
DRM_ERROR("Couldn't allocate workqueues for GuC\n");
return ret;
}
/* We need to notify the guc whenever we change the GGTT */
i915_ggtt_enable_guc(dev_priv);
return 0;
}
if (i915_modparams.enable_guc_submission) {
void intel_uc_fini_wq(struct drm_i915_private *dev_priv)
{
if (!USES_GUC(dev_priv))
return;
GEM_BUG_ON(!HAS_GUC(dev_priv));
intel_guc_fini_wq(&dev_priv->guc);
}
int intel_uc_init(struct drm_i915_private *dev_priv)
{
struct intel_guc *guc = &dev_priv->guc;
int ret;
if (!USES_GUC(dev_priv))
return 0;
if (!HAS_GUC(dev_priv))
return -ENODEV;
ret = intel_guc_init(guc);
if (ret)
return ret;
if (USES_GUC_SUBMISSION(dev_priv)) {
/*
* This is stuff we need to have available at fw load time
* if we are planning to enable submission later
*/
ret = intel_guc_submission_init(guc);
if (ret)
goto err_guc;
if (ret) {
intel_guc_fini(guc);
return ret;
}
}
return 0;
}
void intel_uc_fini(struct drm_i915_private *dev_priv)
{
struct intel_guc *guc = &dev_priv->guc;
if (!USES_GUC(dev_priv))
return;
GEM_BUG_ON(!HAS_GUC(dev_priv));
if (USES_GUC_SUBMISSION(dev_priv))
intel_guc_submission_fini(guc);
intel_guc_fini(guc);
}
int intel_uc_init_hw(struct drm_i915_private *dev_priv)
{
struct intel_guc *guc = &dev_priv->guc;
struct intel_huc *huc = &dev_priv->huc;
int ret, attempts;
if (!USES_GUC(dev_priv))
return 0;
GEM_BUG_ON(!HAS_GUC(dev_priv));
guc_disable_communication(guc);
gen9_reset_guc_interrupts(dev_priv);
/* init WOPCM */
I915_WRITE(GUC_WOPCM_SIZE, intel_guc_wopcm_size(dev_priv));
I915_WRITE(DMA_GUC_WOPCM_OFFSET,
@ -192,9 +292,14 @@ int intel_uc_init_hw(struct drm_i915_private *dev_priv)
*/
ret = __intel_uc_reset_hw(dev_priv);
if (ret)
goto err_submission;
goto err_out;
if (USES_HUC(dev_priv)) {
ret = intel_huc_init_hw(huc);
if (ret)
goto err_out;
}
intel_huc_init_hw(&dev_priv->huc);
intel_guc_init_params(guc);
ret = intel_guc_fw_upload(guc);
if (ret == 0 || ret != -EAGAIN)
@ -212,8 +317,13 @@ int intel_uc_init_hw(struct drm_i915_private *dev_priv)
if (ret)
goto err_log_capture;
intel_huc_auth(&dev_priv->huc);
if (i915_modparams.enable_guc_submission) {
if (USES_HUC(dev_priv)) {
ret = intel_huc_auth(huc);
if (ret)
goto err_communication;
}
if (USES_GUC_SUBMISSION(dev_priv)) {
if (i915_modparams.guc_log_level >= 0)
gen9_enable_guc_interrupts(dev_priv);
@ -222,50 +332,33 @@ int intel_uc_init_hw(struct drm_i915_private *dev_priv)
goto err_interrupts;
}
dev_info(dev_priv->drm.dev, "GuC %s (firmware %s [version %u.%u])\n",
i915_modparams.enable_guc_submission ? "submission enabled" :
"loaded",
guc->fw.path,
dev_info(dev_priv->drm.dev, "GuC firmware version %u.%u\n",
guc->fw.major_ver_found, guc->fw.minor_ver_found);
dev_info(dev_priv->drm.dev, "GuC submission %s\n",
enableddisabled(USES_GUC_SUBMISSION(dev_priv)));
dev_info(dev_priv->drm.dev, "HuC %s\n",
enableddisabled(USES_HUC(dev_priv)));
return 0;
/*
* We've failed to load the firmware :(
*
* Decide whether to disable GuC submission and fall back to
* execlist mode, and whether to hide the error by returning
* zero or to return -EIO, which the caller will treat as a
* nonfatal error (i.e. it doesn't prevent driver load, but
* marks the GPU as wedged until reset).
*/
err_interrupts:
guc_disable_communication(guc);
gen9_disable_guc_interrupts(dev_priv);
err_communication:
guc_disable_communication(guc);
err_log_capture:
guc_capture_load_err_log(guc);
err_submission:
if (i915_modparams.enable_guc_submission)
intel_guc_submission_fini(guc);
err_guc:
i915_ggtt_disable_guc(dev_priv);
if (i915_modparams.enable_guc_loading > 1 ||
i915_modparams.enable_guc_submission > 1) {
DRM_ERROR("GuC init failed. Firmware loading disabled.\n");
ret = -EIO;
} else {
DRM_NOTE("GuC init failed. Firmware loading disabled.\n");
ret = 0;
}
if (i915_modparams.enable_guc_submission) {
i915_modparams.enable_guc_submission = 0;
DRM_NOTE("Falling back from GuC submission to execlist mode\n");
}
i915_modparams.enable_guc_loading = 0;
err_out:
/*
* Note that there is no fallback as either user explicitly asked for
* the GuC or driver default option was to run with the GuC enabled.
*/
if (GEM_WARN_ON(ret == -EIO))
ret = -EINVAL;
dev_err(dev_priv->drm.dev, "GuC initialization failed %d\n", ret);
return ret;
}
@ -275,18 +368,16 @@ void intel_uc_fini_hw(struct drm_i915_private *dev_priv)
guc_free_load_err_log(guc);
if (!i915_modparams.enable_guc_loading)
if (!USES_GUC(dev_priv))
return;
if (i915_modparams.enable_guc_submission)
GEM_BUG_ON(!HAS_GUC(dev_priv));
if (USES_GUC_SUBMISSION(dev_priv))
intel_guc_submission_disable(guc);
guc_disable_communication(guc);
if (i915_modparams.enable_guc_submission) {
if (USES_GUC_SUBMISSION(dev_priv))
gen9_disable_guc_interrupts(dev_priv);
intel_guc_submission_fini(guc);
}
i915_ggtt_disable_guc(dev_priv);
}

23
drivers/gpu/drm/i915/intel_uc.h
View File

@ -26,13 +26,36 @@
#include "intel_guc.h"
#include "intel_huc.h"
#include "i915_params.h"
void intel_uc_sanitize_options(struct drm_i915_private *dev_priv);
void intel_uc_init_early(struct drm_i915_private *dev_priv);
void intel_uc_init_mmio(struct drm_i915_private *dev_priv);
void intel_uc_init_fw(struct drm_i915_private *dev_priv);
void intel_uc_fini_fw(struct drm_i915_private *dev_priv);
int intel_uc_init_wq(struct drm_i915_private *dev_priv);
void intel_uc_fini_wq(struct drm_i915_private *dev_priv);
int intel_uc_init_hw(struct drm_i915_private *dev_priv);
void intel_uc_fini_hw(struct drm_i915_private *dev_priv);
int intel_uc_init(struct drm_i915_private *dev_priv);
void intel_uc_fini(struct drm_i915_private *dev_priv);
static inline bool intel_uc_is_using_guc(void)
{
GEM_BUG_ON(i915_modparams.enable_guc < 0);
return i915_modparams.enable_guc > 0;
}
static inline bool intel_uc_is_using_guc_submission(void)
{
GEM_BUG_ON(i915_modparams.enable_guc < 0);
return i915_modparams.enable_guc & ENABLE_GUC_SUBMISSION;
}
static inline bool intel_uc_is_using_huc(void)
{
GEM_BUG_ON(i915_modparams.enable_guc < 0);
return i915_modparams.enable_guc & ENABLE_GUC_LOAD_HUC;
}
#endif

2
drivers/gpu/drm/i915/intel_uc_fw.c
View File

@ -214,7 +214,7 @@ int intel_uc_fw_upload(struct intel_uc_fw *uc_fw,
intel_uc_fw_type_repr(uc_fw->type), uc_fw->path);
if (uc_fw->fetch_status != INTEL_UC_FIRMWARE_SUCCESS)
return -EIO;
return -ENOEXEC;
uc_fw->load_status = INTEL_UC_FIRMWARE_PENDING;
DRM_DEBUG_DRIVER("%s fw load %s\n",

5
drivers/gpu/drm/i915/intel_uc_fw.h
View File

@ -110,6 +110,11 @@ void intel_uc_fw_init(struct intel_uc_fw *uc_fw, enum intel_uc_fw_type type)
uc_fw->type = type;
}
static inline bool intel_uc_fw_is_selected(struct intel_uc_fw *uc_fw)
{
return uc_fw->path != NULL;
}
void intel_uc_fw_fetch(struct drm_i915_private *dev_priv,
struct intel_uc_fw *uc_fw);
int intel_uc_fw_upload(struct intel_uc_fw *uc_fw,

4
drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
View File

@ -1074,7 +1074,7 @@ static int igt_ggtt_page(void *arg)
i915_gem_object_get_dma_address(obj, 0),
offset, I915_CACHE_NONE, 0);
vaddr = io_mapping_map_atomic_wc(&ggtt->mappable, offset);
vaddr = io_mapping_map_atomic_wc(&ggtt->iomap, offset);
iowrite32(n, vaddr + n);
io_mapping_unmap_atomic(vaddr);
@ -1092,7 +1092,7 @@ static int igt_ggtt_page(void *arg)
i915_gem_object_get_dma_address(obj, 0),
offset, I915_CACHE_NONE, 0);
vaddr = io_mapping_map_atomic_wc(&ggtt->mappable, offset);
vaddr = io_mapping_map_atomic_wc(&ggtt->iomap, offset);
val = ioread32(vaddr + n);
io_mapping_unmap_atomic(vaddr);

112
drivers/gpu/drm/i915/selftests/intel_guc.c
View File

@ -85,21 +85,26 @@ static int validate_client(struct intel_guc_client *client,
return 0;
}
static bool client_doorbell_in_sync(struct intel_guc_client *client)
{
return doorbell_ok(client->guc, client->doorbell_id);
}
/*
* Check that guc_init_doorbell_hw is doing what it should.
* Check that we're able to synchronize guc_clients with their doorbells
*
* During GuC submission enable, we create GuC clients and their doorbells,
* but after resetting the microcontroller (resume & gpu reset), these
* GuC clients are still around, but the status of their doorbells may be
* incorrect. This is the reason behind validating that the doorbells status
* expected by the driver matches what the GuC/HW have.
* We're creating clients and reserving doorbells once, at module load. During
* module lifetime, GuC, doorbell HW, and i915 state may go out of sync due to
* GuC being reset. In other words - GuC clients are still around, but the
* status of their doorbells may be incorrect. This is the reason behind
* validating that the doorbells status expected by the driver matches what the
* GuC/HW have.
*/
static int igt_guc_init_doorbell_hw(void *args)
static int igt_guc_clients(void *args)
{
struct drm_i915_private *dev_priv = args;
struct intel_guc *guc;
DECLARE_BITMAP(db_bitmap_bk, GUC_NUM_DOORBELLS);
int i, err = 0;
int err = 0;
GEM_BUG_ON(!HAS_GUC(dev_priv));
mutex_lock(&dev_priv->drm.struct_mutex);
@ -148,10 +153,21 @@ static int igt_guc_init_doorbell_hw(void *args)
goto out;
}
/* each client should have received a doorbell during alloc */
/* each client should now have reserved a doorbell */
if (!has_doorbell(guc->execbuf_client) ||
!has_doorbell(guc->preempt_client)) {
pr_err("guc_clients_create didn't create doorbells\n");
pr_err("guc_clients_create didn't reserve doorbells\n");
err = -EINVAL;
goto out;
}
/* Now create the doorbells */
guc_clients_doorbell_init(guc);
/* each client should now have received a doorbell */
if (!client_doorbell_in_sync(guc->execbuf_client) ||
!client_doorbell_in_sync(guc->preempt_client)) {
pr_err("failed to initialize the doorbells\n");
err = -EINVAL;
goto out;
}
@ -160,25 +176,26 @@ static int igt_guc_init_doorbell_hw(void *args)
* Basic test - an attempt to reallocate a valid doorbell to the
* client it is currently assigned should not cause a failure.
*/
err = guc_init_doorbell_hw(guc);
err = guc_clients_doorbell_init(guc);
if (err)
goto out;
/*
* Negative test - a client with no doorbell (invalid db id).
* Each client gets a doorbell when it is created, after destroying
* the doorbell, the db id is changed to GUC_DOORBELL_INVALID and the
* firmware will reject any attempt to allocate a doorbell with an
* invalid id (db has to be reserved before allocation).
* After destroying the doorbell, the db id is changed to
* GUC_DOORBELL_INVALID and the firmware will reject any attempt to
* allocate a doorbell with an invalid id (db has to be reserved before
* allocation).
*/
destroy_doorbell(guc->execbuf_client);
if (has_doorbell(guc->execbuf_client)) {
if (client_doorbell_in_sync(guc->execbuf_client)) {
pr_err("destroy db did not work\n");
err = -EINVAL;
goto out;
}
err = guc_init_doorbell_hw(guc);
unreserve_doorbell(guc->execbuf_client);
err = guc_clients_doorbell_init(guc);
if (err != -EIO) {
pr_err("unexpected (err = %d)", err);
goto out;
@ -191,43 +208,26 @@ static int igt_guc_init_doorbell_hw(void *args)
}
/* clean after test */
err = reserve_doorbell(guc->execbuf_client);
if (err) {
pr_err("failed to reserve back the doorbell back\n");
}
err = create_doorbell(guc->execbuf_client);
if (err) {
pr_err("recreate doorbell failed\n");
goto out;
}
/*
* Negative test - doorbell_bitmap out of sync, will trigger a few of
* WARN_ON(!doorbell_ok(guc, db_id)) but that's ok as long as the
* doorbells from our clients don't fail.
*/
bitmap_copy(db_bitmap_bk, guc->doorbell_bitmap, GUC_NUM_DOORBELLS);
for (i = 0; i < GUC_NUM_DOORBELLS; i++)
if (i % 2)
test_and_change_bit(i, guc->doorbell_bitmap);
err = guc_init_doorbell_hw(guc);
if (err) {
pr_err("out of sync doorbell caused an error\n");
goto out;
}
/* restore 'correct' db bitmap */
bitmap_copy(guc->doorbell_bitmap, db_bitmap_bk, GUC_NUM_DOORBELLS);
err = guc_init_doorbell_hw(guc);
if (err) {
pr_err("restored doorbell caused an error\n");
goto out;
}
out:
/*
* Leave clean state for other test, plus the driver always destroy the
* clients during unload.
*/
destroy_doorbell(guc->execbuf_client);
destroy_doorbell(guc->preempt_client);
guc_clients_destroy(guc);
guc_clients_create(guc);
guc_clients_doorbell_init(guc);
unlock:
mutex_unlock(&dev_priv->drm.struct_mutex);
return err;
@ -309,25 +309,7 @@ static int igt_guc_doorbells(void *arg)
db_id = clients[i]->doorbell_id;
/*
* Client alloc gives us a doorbell, but we want to exercise
* this ourselves (this resembles guc_init_doorbell_hw)
*/
destroy_doorbell(clients[i]);
if (clients[i]->doorbell_id != GUC_DOORBELL_INVALID) {
pr_err("[%d] destroy db did not work!\n", i);
err = -EINVAL;
goto out;
}
err = __reserve_doorbell(clients[i]);
if (err) {
pr_err("[%d] Failed to reserve a doorbell\n", i);
goto out;
}
__update_doorbell_desc(clients[i], clients[i]->doorbell_id);
err = __create_doorbell(clients[i]);
err = create_doorbell(clients[i]);
if (err) {
pr_err("[%d] Failed to create a doorbell\n", i);
goto out;
@ -348,8 +330,10 @@ static int igt_guc_doorbells(void *arg)
out:
for (i = 0; i < ATTEMPTS; i++)
if (!IS_ERR_OR_NULL(clients[i]))
if (!IS_ERR_OR_NULL(clients[i])) {
destroy_doorbell(clients[i]);
guc_client_free(clients[i]);
}
unlock:
mutex_unlock(&dev_priv->drm.struct_mutex);
return err;
@ -358,11 +342,11 @@ unlock:
int intel_guc_live_selftest(struct drm_i915_private *dev_priv)
{
static const struct i915_subtest tests[] = {
SUBTEST(igt_guc_init_doorbell_hw),
SUBTEST(igt_guc_clients),
SUBTEST(igt_guc_doorbells),
};
if (!i915_modparams.enable_guc_submission)
if (!USES_GUC_SUBMISSION(dev_priv))
return 0;
return i915_subtests(tests, dev_priv);

7
drivers/gpu/drm/i915/selftests/intel_hangcheck.c
View File

@ -619,7 +619,7 @@ static int igt_wait_reset(void *arg)
pr_err("Failed to start request %x, at %x\n",
rq->fence.seqno, hws_seqno(&h, rq));
intel_engine_dump(rq->engine, &p);
intel_engine_dump(rq->engine, &p, "%s\n", rq->engine->name);
i915_reset(i915, 0);
i915_gem_set_wedged(i915);
@ -714,7 +714,8 @@ static int igt_reset_queue(void *arg)
pr_err("Failed to start request %x, at %x\n",
prev->fence.seqno, hws_seqno(&h, prev));
intel_engine_dump(rq->engine, &p);
intel_engine_dump(prev->engine, &p,
"%s\n", prev->engine->name);
i915_gem_request_put(rq);
i915_gem_request_put(prev);
@ -820,7 +821,7 @@ static int igt_handle_error(void *arg)
pr_err("Failed to start request %x, at %x\n",
rq->fence.seqno, hws_seqno(&h, rq));
intel_engine_dump(rq->engine, &p);
intel_engine_dump(rq->engine, &p, "%s\n", rq->engine->name);
i915_reset(i915, 0);
i915_gem_set_wedged(i915);

7
drivers/gpu/drm/i915/selftests/mock_gem_device.c
View File

@ -85,6 +85,8 @@ static void mock_device_release(struct drm_device *dev)
i915_gemfs_fini(i915);
drm_mode_config_cleanup(&i915->drm);
drm_dev_fini(&i915->drm);
put_device(&i915->drm.pdev->dev);
}
@ -187,7 +189,7 @@ struct drm_i915_private *mock_gem_device(void)
i915->wq = alloc_ordered_workqueue("mock", 0);
if (!i915->wq)
goto put_device;
goto err_drv;
mock_init_contexts(i915);
@ -266,6 +268,9 @@ err_objects:
kmem_cache_destroy(i915->objects);
err_wq:
destroy_workqueue(i915->wq);
err_drv:
drm_mode_config_cleanup(&i915->drm);
drm_dev_fini(&i915->drm);
put_device:
put_device(&pdev->dev);
err:

4
drivers/gpu/drm/i915/selftests/mock_gtt.c
View File

@ -110,8 +110,8 @@ void mock_init_ggtt(struct drm_i915_private *i915)
ggtt->base.i915 = i915;
ggtt->mappable_base = 0;
ggtt->mappable_end = 2048 * PAGE_SIZE;
ggtt->gmadr = (struct resource) DEFINE_RES_MEM(0, 2048 * PAGE_SIZE);
ggtt->mappable_end = resource_size(&ggtt->gmadr);
ggtt->base.total = 4096 * PAGE_SIZE;
ggtt->base.clear_range = nop_clear_range;

3
include/drm/i915_drm.h
View File

@ -36,6 +36,9 @@ extern bool i915_gpu_lower(void);
extern bool i915_gpu_busy(void);
extern bool i915_gpu_turbo_disable(void);
/* Exported from arch/x86/kernel/early-quirks.c */
extern struct resource intel_graphics_stolen_res;
/*
* The Bridge device's PCI config space has information about the
* fb aperture size and the amount of pre-reserved memory.

3
include/drm/intel-gtt.h
View File

@ -5,9 +5,8 @@
#define _DRM_INTEL_GTT_H
void intel_gtt_get(u64 *gtt_total,
u32 *stolen_size,
phys_addr_t *mappable_base,
u64 *mappable_end);
resource_size_t *mappable_end);
int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev,
struct agp_bridge_data *bridge);

62
include/uapi/linux/vfio.h
View File

@ -503,6 +503,68 @@ struct vfio_pci_hot_reset {
#define VFIO_DEVICE_PCI_HOT_RESET _IO(VFIO_TYPE, VFIO_BASE + 13)
/**
* VFIO_DEVICE_QUERY_GFX_PLANE - _IOW(VFIO_TYPE, VFIO_BASE + 14,
* struct vfio_device_query_gfx_plane)
*
* Set the drm_plane_type and flags, then retrieve the gfx plane info.
*
* flags supported:
* - VFIO_GFX_PLANE_TYPE_PROBE and VFIO_GFX_PLANE_TYPE_DMABUF are set
* to ask if the mdev supports dma-buf. 0 on support, -EINVAL on no
* support for dma-buf.
* - VFIO_GFX_PLANE_TYPE_PROBE and VFIO_GFX_PLANE_TYPE_REGION are set
* to ask if the mdev supports region. 0 on support, -EINVAL on no
* support for region.
* - VFIO_GFX_PLANE_TYPE_DMABUF or VFIO_GFX_PLANE_TYPE_REGION is set
* with each call to query the plane info.
* - Others are invalid and return -EINVAL.
*
* Note:
* 1. Plane could be disabled by guest. In that case, success will be
* returned with zero-initialized drm_format, size, width and height
* fields.
* 2. x_hot/y_hot is set to 0xFFFFFFFF if no hotspot information available
*
* Return: 0 on success, -errno on other failure.
*/
struct vfio_device_gfx_plane_info {
__u32 argsz;
__u32 flags;
#define VFIO_GFX_PLANE_TYPE_PROBE (1 << 0)
#define VFIO_GFX_PLANE_TYPE_DMABUF (1 << 1)
#define VFIO_GFX_PLANE_TYPE_REGION (1 << 2)
/* in */
__u32 drm_plane_type; /* type of plane: DRM_PLANE_TYPE_* */
/* out */
__u32 drm_format; /* drm format of plane */
__u64 drm_format_mod; /* tiled mode */
__u32 width; /* width of plane */
__u32 height; /* height of plane */
__u32 stride; /* stride of plane */
__u32 size; /* size of plane in bytes, align on page*/
__u32 x_pos; /* horizontal position of cursor plane */
__u32 y_pos; /* vertical position of cursor plane*/
__u32 x_hot; /* horizontal position of cursor hotspot */
__u32 y_hot; /* vertical position of cursor hotspot */
union {
__u32 region_index; /* region index */
__u32 dmabuf_id; /* dma-buf id */
};
};
#define VFIO_DEVICE_QUERY_GFX_PLANE _IO(VFIO_TYPE, VFIO_BASE + 14)
/**
* VFIO_DEVICE_GET_GFX_DMABUF - _IOW(VFIO_TYPE, VFIO_BASE + 15, __u32)
*
* Return a new dma-buf file descriptor for an exposed guest framebuffer
* described by the provided dmabuf_id. The dmabuf_id is returned from VFIO_
* DEVICE_QUERY_GFX_PLANE as a token of the exposed guest framebuffer.
*/
#define VFIO_DEVICE_GET_GFX_DMABUF _IO(VFIO_TYPE, VFIO_BASE + 15)
/* -------- API for Type1 VFIO IOMMU -------- */
/**