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Merge branch 'for-airlied' of git://people.freedesktop.org/~danvet/drm into drm-core-next

Browse Source 
* 'for-airlied' of git://people.freedesktop.org/~danvet/drm:
  drm/i810: don't acces hw regs in lastclose
  drm/i810: cleanup reclaim_buffers
  drm: kill drm_sman
  drm/sis: use drm_mm instead of drm_sman
  drm/via: use drm_mm instead of drm_sman
  drm/sman: kill user_hash_tab
  drm/sis: track user->memblock mapping with idr
  drm/via: track user->memblock mapping with idr
  drm/sman: rip out owner tracking
  drm/sman: kill owner tracking interface functions
  drm/via: track obj->drm_fd relations in the driver
  drm/sis: track obj->drm_fd relations in the driver
This commit is contained in:
Dave Airlie 2011-12-22 19:05:01 +00:00
commit 5c72765ed0
15 changed files with 292 additions and 687 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/Makefile
View File

@ -9,7 +9,7 @@ drm-y := drm_auth.o drm_buffer.o drm_bufs.o drm_cache.o \
drm_drv.o drm_fops.o drm_gem.o drm_ioctl.o drm_irq.o \
drm_lock.o drm_memory.o drm_proc.o drm_stub.o drm_vm.o \
drm_agpsupport.o drm_scatter.o ati_pcigart.o drm_pci.o \
drm_platform.o drm_sysfs.o drm_hashtab.o drm_sman.o drm_mm.o \
drm_platform.o drm_sysfs.o drm_hashtab.o drm_mm.o \
drm_crtc.o drm_modes.o drm_edid.o \
drm_info.o drm_debugfs.o drm_encoder_slave.o \
drm_trace_points.o drm_global.o drm_usb.o

351
drivers/gpu/drm/drm_sman.c
View File

@ -1,351 +0,0 @@
/**************************************************************************
*
* Copyright 2006 Tungsten Graphics, Inc., Bismarck., ND., USA.
* 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, sub license, 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 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 NON-INFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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.
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
*
**************************************************************************/
/*
* Simple memory manager interface that keeps track on allocate regions on a
* per "owner" basis. All regions associated with an "owner" can be released
* with a simple call. Typically if the "owner" exists. The owner is any
* "unsigned long" identifier. Can typically be a pointer to a file private
* struct or a context identifier.
*
* Authors:
* Thomas Hellström <thomas-at-tungstengraphics-dot-com>
*/
#include <linux/export.h>
#include "drm_sman.h"
struct drm_owner_item {
struct drm_hash_item owner_hash;
struct list_head sman_list;
struct list_head mem_blocks;
};
void drm_sman_takedown(struct drm_sman * sman)
{
drm_ht_remove(&sman->user_hash_tab);
drm_ht_remove(&sman->owner_hash_tab);
kfree(sman->mm);
}
EXPORT_SYMBOL(drm_sman_takedown);
int
drm_sman_init(struct drm_sman * sman, unsigned int num_managers,
unsigned int user_order, unsigned int owner_order)
{
int ret = 0;
sman->mm = kcalloc(num_managers, sizeof(*sman->mm), GFP_KERNEL);
if (!sman->mm) {
ret = -ENOMEM;
goto out;
}
sman->num_managers = num_managers;
INIT_LIST_HEAD(&sman->owner_items);
ret = drm_ht_create(&sman->owner_hash_tab, owner_order);
if (ret)
goto out1;
ret = drm_ht_create(&sman->user_hash_tab, user_order);
if (!ret)
goto out;
drm_ht_remove(&sman->owner_hash_tab);
out1:
kfree(sman->mm);
out:
return ret;
}
EXPORT_SYMBOL(drm_sman_init);
static void *drm_sman_mm_allocate(void *private, unsigned long size,
unsigned alignment)
{
struct drm_mm *mm = (struct drm_mm *) private;
struct drm_mm_node *tmp;
tmp = drm_mm_search_free(mm, size, alignment, 1);
if (!tmp) {
return NULL;
}
tmp = drm_mm_get_block(tmp, size, alignment);
return tmp;
}
static void drm_sman_mm_free(void *private, void *ref)
{
struct drm_mm_node *node = (struct drm_mm_node *) ref;
drm_mm_put_block(node);
}
static void drm_sman_mm_destroy(void *private)
{
struct drm_mm *mm = (struct drm_mm *) private;
drm_mm_takedown(mm);
kfree(mm);
}
static unsigned long drm_sman_mm_offset(void *private, void *ref)
{
struct drm_mm_node *node = (struct drm_mm_node *) ref;
return node->start;
}
int
drm_sman_set_range(struct drm_sman * sman, unsigned int manager,
unsigned long start, unsigned long size)
{
struct drm_sman_mm *sman_mm;
struct drm_mm *mm;
int ret;
BUG_ON(manager >= sman->num_managers);
sman_mm = &sman->mm[manager];
mm = kzalloc(sizeof(*mm), GFP_KERNEL);
if (!mm) {
return -ENOMEM;
}
sman_mm->private = mm;
ret = drm_mm_init(mm, start, size);
if (ret) {
kfree(mm);
return ret;
}
sman_mm->allocate = drm_sman_mm_allocate;
sman_mm->free = drm_sman_mm_free;
sman_mm->destroy = drm_sman_mm_destroy;
sman_mm->offset = drm_sman_mm_offset;
return 0;
}
EXPORT_SYMBOL(drm_sman_set_range);
int
drm_sman_set_manager(struct drm_sman * sman, unsigned int manager,
struct drm_sman_mm * allocator)
{
BUG_ON(manager >= sman->num_managers);
sman->mm[manager] = *allocator;
return 0;
}
EXPORT_SYMBOL(drm_sman_set_manager);
static struct drm_owner_item *drm_sman_get_owner_item(struct drm_sman * sman,
unsigned long owner)
{
int ret;
struct drm_hash_item *owner_hash_item;
struct drm_owner_item *owner_item;
ret = drm_ht_find_item(&sman->owner_hash_tab, owner, &owner_hash_item);
if (!ret) {
return drm_hash_entry(owner_hash_item, struct drm_owner_item,
owner_hash);
}
owner_item = kzalloc(sizeof(*owner_item), GFP_KERNEL);
if (!owner_item)
goto out;
INIT_LIST_HEAD(&owner_item->mem_blocks);
owner_item->owner_hash.key = owner;
if (drm_ht_insert_item(&sman->owner_hash_tab, &owner_item->owner_hash))
goto out1;
list_add_tail(&owner_item->sman_list, &sman->owner_items);
return owner_item;
out1:
kfree(owner_item);
out:
return NULL;
}
struct drm_memblock_item *drm_sman_alloc(struct drm_sman *sman, unsigned int manager,
unsigned long size, unsigned alignment,
unsigned long owner)
{
void *tmp;
struct drm_sman_mm *sman_mm;
struct drm_owner_item *owner_item;
struct drm_memblock_item *memblock;
BUG_ON(manager >= sman->num_managers);
sman_mm = &sman->mm[manager];
tmp = sman_mm->allocate(sman_mm->private, size, alignment);
if (!tmp) {
return NULL;
}
memblock = kzalloc(sizeof(*memblock), GFP_KERNEL);
if (!memblock)
goto out;
memblock->mm_info = tmp;
memblock->mm = sman_mm;
memblock->sman = sman;
if (drm_ht_just_insert_please
(&sman->user_hash_tab, &memblock->user_hash,
(unsigned long)memblock, 32, 0, 0))
goto out1;
owner_item = drm_sman_get_owner_item(sman, owner);
if (!owner_item)
goto out2;
list_add_tail(&memblock->owner_list, &owner_item->mem_blocks);
return memblock;
out2:
drm_ht_remove_item(&sman->user_hash_tab, &memblock->user_hash);
out1:
kfree(memblock);
out:
sman_mm->free(sman_mm->private, tmp);
return NULL;
}
EXPORT_SYMBOL(drm_sman_alloc);
static void drm_sman_free(struct drm_memblock_item *item)
{
struct drm_sman *sman = item->sman;
list_del(&item->owner_list);
drm_ht_remove_item(&sman->user_hash_tab, &item->user_hash);
item->mm->free(item->mm->private, item->mm_info);
kfree(item);
}
int drm_sman_free_key(struct drm_sman *sman, unsigned int key)
{
struct drm_hash_item *hash_item;
struct drm_memblock_item *memblock_item;
if (drm_ht_find_item(&sman->user_hash_tab, key, &hash_item))
return -EINVAL;
memblock_item = drm_hash_entry(hash_item, struct drm_memblock_item,
user_hash);
drm_sman_free(memblock_item);
return 0;
}
EXPORT_SYMBOL(drm_sman_free_key);
static void drm_sman_remove_owner(struct drm_sman *sman,
struct drm_owner_item *owner_item)
{
list_del(&owner_item->sman_list);
drm_ht_remove_item(&sman->owner_hash_tab, &owner_item->owner_hash);
kfree(owner_item);
}
int drm_sman_owner_clean(struct drm_sman *sman, unsigned long owner)
{
struct drm_hash_item *hash_item;
struct drm_owner_item *owner_item;
if (drm_ht_find_item(&sman->owner_hash_tab, owner, &hash_item)) {
return -1;
}
owner_item = drm_hash_entry(hash_item, struct drm_owner_item, owner_hash);
if (owner_item->mem_blocks.next == &owner_item->mem_blocks) {
drm_sman_remove_owner(sman, owner_item);
return -1;
}
return 0;
}
EXPORT_SYMBOL(drm_sman_owner_clean);
static void drm_sman_do_owner_cleanup(struct drm_sman *sman,
struct drm_owner_item *owner_item)
{
struct drm_memblock_item *entry, *next;
list_for_each_entry_safe(entry, next, &owner_item->mem_blocks,
owner_list) {
drm_sman_free(entry);
}
drm_sman_remove_owner(sman, owner_item);
}
void drm_sman_owner_cleanup(struct drm_sman *sman, unsigned long owner)
{
struct drm_hash_item *hash_item;
struct drm_owner_item *owner_item;
if (drm_ht_find_item(&sman->owner_hash_tab, owner, &hash_item)) {
return;
}
owner_item = drm_hash_entry(hash_item, struct drm_owner_item, owner_hash);
drm_sman_do_owner_cleanup(sman, owner_item);
}
EXPORT_SYMBOL(drm_sman_owner_cleanup);
void drm_sman_cleanup(struct drm_sman *sman)
{
struct drm_owner_item *entry, *next;
unsigned int i;
struct drm_sman_mm *sman_mm;
list_for_each_entry_safe(entry, next, &sman->owner_items, sman_list) {
drm_sman_do_owner_cleanup(sman, entry);
}
if (sman->mm) {
for (i = 0; i < sman->num_managers; ++i) {
sman_mm = &sman->mm[i];
if (sman_mm->private) {
sman_mm->destroy(sman_mm->private);
sman_mm->private = NULL;
}
}
}
}
EXPORT_SYMBOL(drm_sman_cleanup);

19
drivers/gpu/drm/i810/i810_dma.c
View File

@ -222,8 +222,6 @@ static int i810_dma_cleanup(struct drm_device *dev)
pci_free_consistent(dev->pdev, PAGE_SIZE,
dev_priv->hw_status_page,
dev_priv->dma_status_page);
/* Need to rewrite hardware status page */
I810_WRITE(0x02080, 0x1ffff000);
}
kfree(dev->dev_private);
dev->dev_private = NULL;
@ -888,7 +886,7 @@ static int i810_flush_queue(struct drm_device *dev)
}
/* Must be called with the lock held */
static void i810_reclaim_buffers(struct drm_device *dev,
void i810_driver_reclaim_buffers(struct drm_device *dev,
struct drm_file *file_priv)
{
struct drm_device_dma *dma = dev->dma;
@ -1225,12 +1223,17 @@ void i810_driver_preclose(struct drm_device *dev, struct drm_file *file_priv)
if (dev_priv->page_flipping)
i810_do_cleanup_pageflip(dev);
}
}
void i810_driver_reclaim_buffers_locked(struct drm_device *dev,
struct drm_file *file_priv)
{
i810_reclaim_buffers(dev, file_priv);
if (file_priv->master && file_priv->master->lock.hw_lock) {
drm_idlelock_take(&file_priv->master->lock);
i810_driver_reclaim_buffers(dev, file_priv);
drm_idlelock_release(&file_priv->master->lock);
} else {
/* master disappeared, clean up stuff anyway and hope nothing
* goes wrong */
i810_driver_reclaim_buffers(dev, file_priv);
}
}
int i810_driver_dma_quiescent(struct drm_device *dev)

1
drivers/gpu/drm/i810/i810_drv.c
View File

@ -63,7 +63,6 @@ static struct drm_driver driver = {
.lastclose = i810_driver_lastclose,
.preclose = i810_driver_preclose,
.device_is_agp = i810_driver_device_is_agp,
.reclaim_buffers_locked = i810_driver_reclaim_buffers_locked,
.dma_quiescent = i810_driver_dma_quiescent,
.ioctls = i810_ioctls,
.fops = &i810_driver_fops,

6
drivers/gpu/drm/i810/i810_drv.h
View File

@ -116,14 +116,12 @@ typedef struct drm_i810_private {
/* i810_dma.c */
extern int i810_driver_dma_quiescent(struct drm_device *dev);
extern void i810_driver_reclaim_buffers_locked(struct drm_device *dev,
struct drm_file *file_priv);
void i810_driver_reclaim_buffers(struct drm_device *dev,
struct drm_file *file_priv);
extern int i810_driver_load(struct drm_device *, unsigned long flags);
extern void i810_driver_lastclose(struct drm_device *dev);
extern void i810_driver_preclose(struct drm_device *dev,
struct drm_file *file_priv);
extern void i810_driver_reclaim_buffers_locked(struct drm_device *dev,
struct drm_file *file_priv);
extern int i810_driver_device_is_agp(struct drm_device *dev);
extern long i810_ioctl(struct file *file, unsigned int cmd, unsigned long arg);

33
drivers/gpu/drm/sis/sis_drv.c
View File

@ -48,9 +48,7 @@ static int sis_driver_load(struct drm_device *dev, unsigned long chipset)
dev->dev_private = (void *)dev_priv;
dev_priv->chipset = chipset;
ret = drm_sman_init(&dev_priv->sman, 2, 12, 8);
if (ret)
kfree(dev_priv);
idr_init(&dev->object_name_idr);
return ret;
}
@ -59,7 +57,9 @@ static int sis_driver_unload(struct drm_device *dev)
{
drm_sis_private_t *dev_priv = dev->dev_private;
drm_sman_takedown(&dev_priv->sman);
idr_remove_all(&dev_priv->object_idr);
idr_destroy(&dev_priv->object_idr);
kfree(dev_priv);
return 0;
@ -76,10 +76,35 @@ static const struct file_operations sis_driver_fops = {
.llseek = noop_llseek,
};
static int sis_driver_open(struct drm_device *dev, struct drm_file *file)
{
struct sis_file_private *file_priv;
DRM_DEBUG_DRIVER("\n");
file_priv = kmalloc(sizeof(*file_priv), GFP_KERNEL);
if (!file_priv)
return -ENOMEM;
file->driver_priv = file_priv;
INIT_LIST_HEAD(&file_priv->obj_list);
return 0;
}
void sis_driver_postclose(struct drm_device *dev, struct drm_file *file)
{
struct sis_file_private *file_priv = file->driver_priv;
kfree(file_priv);
}
static struct drm_driver driver = {
.driver_features = DRIVER_USE_AGP | DRIVER_USE_MTRR,
.load = sis_driver_load,
.unload = sis_driver_unload,
.open = sis_driver_open,
.postclose = sis_driver_postclose,
.dma_quiescent = sis_idle,
.reclaim_buffers = NULL,
.reclaim_buffers_idlelocked = sis_reclaim_buffers_locked,

7
drivers/gpu/drm/sis/sis_drv.h
View File

@ -44,7 +44,7 @@ enum sis_family {
SIS_CHIP_315 = 1,
};
#include "drm_sman.h"
#include "drm_mm.h"
#define SIS_BASE (dev_priv->mmio)
@ -54,12 +54,15 @@ enum sis_family {
typedef struct drm_sis_private {
drm_local_map_t *mmio;
unsigned int idle_fault;
struct drm_sman sman;
unsigned int chipset;
int vram_initialized;
int agp_initialized;
unsigned long vram_offset;
unsigned long agp_offset;
struct drm_mm vram_mm;
struct drm_mm agp_mm;
/** Mapping of userspace keys to mm objects */
struct idr object_idr;
} drm_sis_private_t;
extern int sis_idle(struct drm_device *dev);

200
drivers/gpu/drm/sis/sis_mm.c
View File

@ -41,40 +41,18 @@
#define AGP_TYPE 1
struct sis_memblock {
struct drm_mm_node mm_node;
struct sis_memreq req;
struct list_head owner_list;
};
#if defined(CONFIG_FB_SIS) || defined(CONFIG_FB_SIS_MODULE)
/* fb management via fb device */
#define SIS_MM_ALIGN_SHIFT 0
#define SIS_MM_ALIGN_MASK 0
static void *sis_sman_mm_allocate(void *private, unsigned long size,
unsigned alignment)
{
struct sis_memreq req;
req.size = size;
sis_malloc(&req);
if (req.size == 0)
return NULL;
else
return (void *)(unsigned long)~req.offset;
}
static void sis_sman_mm_free(void *private, void *ref)
{
sis_free(~((unsigned long)ref));
}
static void sis_sman_mm_destroy(void *private)
{
;
}
static unsigned long sis_sman_mm_offset(void *private, void *ref)
{
return ~((unsigned long)ref);
}
#else /* CONFIG_FB_SIS[_MODULE] */
#define SIS_MM_ALIGN_SHIFT 4
@ -86,30 +64,11 @@ static int sis_fb_init(struct drm_device *dev, void *data, struct drm_file *file
{
drm_sis_private_t *dev_priv = dev->dev_private;
drm_sis_fb_t *fb = data;
int ret;
mutex_lock(&dev->struct_mutex);
#if defined(CONFIG_FB_SIS) || defined(CONFIG_FB_SIS_MODULE)
{
struct drm_sman_mm sman_mm;
sman_mm.private = (void *)0xFFFFFFFF;
sman_mm.allocate = sis_sman_mm_allocate;
sman_mm.free = sis_sman_mm_free;
sman_mm.destroy = sis_sman_mm_destroy;
sman_mm.offset = sis_sman_mm_offset;
ret =
drm_sman_set_manager(&dev_priv->sman, VIDEO_TYPE, &sman_mm);
}
#else
ret = drm_sman_set_range(&dev_priv->sman, VIDEO_TYPE, 0,
fb->size >> SIS_MM_ALIGN_SHIFT);
#endif
if (ret) {
DRM_ERROR("VRAM memory manager initialisation error\n");
mutex_unlock(&dev->struct_mutex);
return ret;
}
/* Unconditionally init the drm_mm, even though we don't use it when the
* fb sis driver is available - make cleanup easier. */
drm_mm_init(&dev_priv->vram_mm, 0, fb->size >> SIS_MM_ALIGN_SHIFT);
dev_priv->vram_initialized = 1;
dev_priv->vram_offset = fb->offset;
@ -120,13 +79,15 @@ static int sis_fb_init(struct drm_device *dev, void *data, struct drm_file *file
return 0;
}
static int sis_drm_alloc(struct drm_device *dev, struct drm_file *file_priv,
static int sis_drm_alloc(struct drm_device *dev, struct drm_file *file,
void *data, int pool)
{
drm_sis_private_t *dev_priv = dev->dev_private;
drm_sis_mem_t *mem = data;
int retval = 0;
struct drm_memblock_item *item;
int retval = 0, user_key;
struct sis_memblock *item;
struct sis_file_private *file_priv = file->driver_priv;
unsigned long offset;
mutex_lock(&dev->struct_mutex);
@ -138,25 +99,68 @@ static int sis_drm_alloc(struct drm_device *dev, struct drm_file *file_priv,
return -EINVAL;
}
mem->size = (mem->size + SIS_MM_ALIGN_MASK) >> SIS_MM_ALIGN_SHIFT;
item = drm_sman_alloc(&dev_priv->sman, pool, mem->size, 0,
(unsigned long)file_priv);
mutex_unlock(&dev->struct_mutex);
if (item) {
mem->offset = ((pool == 0) ?
dev_priv->vram_offset : dev_priv->agp_offset) +
(item->mm->
offset(item->mm, item->mm_info) << SIS_MM_ALIGN_SHIFT);
mem->free = item->user_hash.key;
mem->size = mem->size << SIS_MM_ALIGN_SHIFT;
} else {
mem->offset = 0;
mem->size = 0;
mem->free = 0;
item = kzalloc(sizeof(*item), GFP_KERNEL);
if (!item) {
retval = -ENOMEM;
goto fail_alloc;
}
mem->size = (mem->size + SIS_MM_ALIGN_MASK) >> SIS_MM_ALIGN_SHIFT;
if (pool == AGP_TYPE) {
retval = drm_mm_insert_node(&dev_priv->agp_mm,
&item->mm_node,
mem->size, 0);
offset = item->mm_node.start;
} else {
#if defined(CONFIG_FB_SIS) || defined(CONFIG_FB_SIS_MODULE)
item->req.size = mem->size;
sis_malloc(&item->req);
if (item->req.size == 0)
retval = -ENOMEM;
offset = item->req.offset;
#else
retval = drm_mm_insert_node(&dev_priv->vram_mm,
&item->mm_node,
mem->size, 0);
offset = item->mm_node.start;
#endif
}
if (retval)
goto fail_alloc;
again:
if (idr_pre_get(&dev_priv->object_idr, GFP_KERNEL) == 0) {
retval = -ENOMEM;
goto fail_idr;
}
retval = idr_get_new_above(&dev_priv->object_idr, item, 1, &user_key);
if (retval == -EAGAIN)
goto again;
if (retval)
goto fail_idr;
list_add(&item->owner_list, &file_priv->obj_list);
mutex_unlock(&dev->struct_mutex);
mem->offset = ((pool == 0) ?
dev_priv->vram_offset : dev_priv->agp_offset) +
(offset << SIS_MM_ALIGN_SHIFT);
mem->free = user_key;
mem->size = mem->size << SIS_MM_ALIGN_SHIFT;
return 0;
fail_idr:
drm_mm_remove_node(&item->mm_node);
fail_alloc:
kfree(item);
mutex_unlock(&dev->struct_mutex);
mem->offset = 0;
mem->size = 0;
mem->free = 0;
DRM_DEBUG("alloc %d, size = %d, offset = %d\n", pool, mem->size,
mem->offset);
@ -167,10 +171,25 @@ static int sis_drm_free(struct drm_device *dev, void *data, struct drm_file *fil
{
drm_sis_private_t *dev_priv = dev->dev_private;
drm_sis_mem_t *mem = data;
struct sis_memblock *obj;
int ret;
mutex_lock(&dev->struct_mutex);
ret = drm_sman_free_key(&dev_priv->sman, mem->free);
obj = idr_find(&dev_priv->object_idr, mem->free);
if (obj == NULL) {
mutex_unlock(&dev->struct_mutex);
return -EINVAL;
}
idr_remove(&dev_priv->object_idr, mem->free);
list_del(&obj->owner_list);
if (drm_mm_node_allocated(&obj->mm_node))
drm_mm_remove_node(&obj->mm_node);
#if defined(CONFIG_FB_SIS) || defined(CONFIG_FB_SIS_MODULE)
else
sis_free(obj->req.offset);
#endif
kfree(obj);
mutex_unlock(&dev->struct_mutex);
DRM_DEBUG("free = 0x%lx\n", mem->free);
@ -188,18 +207,10 @@ static int sis_ioctl_agp_init(struct drm_device *dev, void *data,
{
drm_sis_private_t *dev_priv = dev->dev_private;
drm_sis_agp_t *agp = data;
int ret;
dev_priv = dev->dev_private;
mutex_lock(&dev->struct_mutex);
ret = drm_sman_set_range(&dev_priv->sman, AGP_TYPE, 0,
agp->size >> SIS_MM_ALIGN_SHIFT);
if (ret) {
DRM_ERROR("AGP memory manager initialisation error\n");
mutex_unlock(&dev->struct_mutex);
return ret;
}
drm_mm_init(&dev_priv->agp_mm, 0, agp->size >> SIS_MM_ALIGN_SHIFT);
dev_priv->agp_initialized = 1;
dev_priv->agp_offset = agp->offset;
@ -293,20 +304,26 @@ void sis_lastclose(struct drm_device *dev)
return;
mutex_lock(&dev->struct_mutex);
drm_sman_cleanup(&dev_priv->sman);
dev_priv->vram_initialized = 0;
dev_priv->agp_initialized = 0;
if (dev_priv->vram_initialized) {
drm_mm_takedown(&dev_priv->vram_mm);
dev_priv->vram_initialized = 0;
}
if (dev_priv->agp_initialized) {
drm_mm_takedown(&dev_priv->agp_mm);
dev_priv->agp_initialized = 0;
}
dev_priv->mmio = NULL;
mutex_unlock(&dev->struct_mutex);
}
void sis_reclaim_buffers_locked(struct drm_device *dev,
struct drm_file *file_priv)
struct drm_file *file)
{
drm_sis_private_t *dev_priv = dev->dev_private;
struct sis_file_private *file_priv = file->driver_priv;
struct sis_memblock *entry, *next;
mutex_lock(&dev->struct_mutex);
if (drm_sman_owner_clean(&dev_priv->sman, (unsigned long)file_priv)) {
if (list_empty(&file_priv->obj_list)) {
mutex_unlock(&dev->struct_mutex);
return;
}
@ -314,7 +331,18 @@ void sis_reclaim_buffers_locked(struct drm_device *dev,
if (dev->driver->dma_quiescent)
dev->driver->dma_quiescent(dev);
drm_sman_owner_cleanup(&dev_priv->sman, (unsigned long)file_priv);
list_for_each_entry_safe(entry, next, &file_priv->obj_list,
owner_list) {
list_del(&entry->owner_list);
if (drm_mm_node_allocated(&entry->mm_node))
drm_mm_remove_node(&entry->mm_node);
#if defined(CONFIG_FB_SIS) || defined(CONFIG_FB_SIS_MODULE)
else
sis_free(entry->req.offset);
#endif
kfree(entry);
}
mutex_unlock(&dev->struct_mutex);
return;
}

25
drivers/gpu/drm/via/via_drv.c
View File

@ -30,6 +30,29 @@
#include "drm_pciids.h"
static int via_driver_open(struct drm_device *dev, struct drm_file *file)
{
struct via_file_private *file_priv;
DRM_DEBUG_DRIVER("\n");
file_priv = kmalloc(sizeof(*file_priv), GFP_KERNEL);
if (!file_priv)
return -ENOMEM;
file->driver_priv = file_priv;
INIT_LIST_HEAD(&file_priv->obj_list);
return 0;
}
void via_driver_postclose(struct drm_device *dev, struct drm_file *file)
{
struct via_file_private *file_priv = file->driver_priv;
kfree(file_priv);
}
static struct pci_device_id pciidlist[] = {
viadrv_PCI_IDS
};
@ -51,6 +74,8 @@ static struct drm_driver driver = {
DRIVER_IRQ_SHARED,
.load = via_driver_load,
.unload = via_driver_unload,
.open = via_driver_open,
.postclose = via_driver_postclose,
.context_dtor = via_final_context,
.get_vblank_counter = via_get_vblank_counter,
.enable_vblank = via_enable_vblank,

7
drivers/gpu/drm/via/via_drv.h
View File

@ -24,7 +24,7 @@
#ifndef _VIA_DRV_H_
#define _VIA_DRV_H_
#include "drm_sman.h"
#include "drm_mm.h"
#define DRIVER_AUTHOR "Various"
#define DRIVER_NAME "via"
@ -88,9 +88,12 @@ typedef struct drm_via_private {
uint32_t irq_pending_mask;
int *irq_map;
unsigned int idle_fault;
struct drm_sman sman;
int vram_initialized;
struct drm_mm vram_mm;
int agp_initialized;
struct drm_mm agp_mm;
/** Mapping of userspace keys to mm objects */
struct idr object_idr;
unsigned long vram_offset;
unsigned long agp_offset;
drm_via_blitq_t blit_queues[VIA_NUM_BLIT_ENGINES];

10
drivers/gpu/drm/via/via_map.c
View File

@ -104,15 +104,10 @@ int via_driver_load(struct drm_device *dev, unsigned long chipset)
dev_priv->chipset = chipset;
ret = drm_sman_init(&dev_priv->sman, 2, 12, 8);
if (ret) {
kfree(dev_priv);
return ret;
}
idr_init(&dev->object_name_idr);
ret = drm_vblank_init(dev, 1);
if (ret) {
drm_sman_takedown(&dev_priv->sman);
kfree(dev_priv);
return ret;
}
@ -124,7 +119,8 @@ int via_driver_unload(struct drm_device *dev)
{
drm_via_private_t *dev_priv = dev->dev_private;
drm_sman_takedown(&dev_priv->sman);
idr_remove_all(&dev_priv->object_idr);
idr_destroy(&dev_priv->object_idr);
kfree(dev_priv);

134
drivers/gpu/drm/via/via_mm.c
View File

@ -28,26 +28,22 @@
#include "drmP.h"
#include "via_drm.h"
#include "via_drv.h"
#include "drm_sman.h"
#define VIA_MM_ALIGN_SHIFT 4
#define VIA_MM_ALIGN_MASK ((1 << VIA_MM_ALIGN_SHIFT) - 1)
struct via_memblock {
struct drm_mm_node mm_node;
struct list_head owner_list;
};
int via_agp_init(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
drm_via_agp_t *agp = data;
drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
int ret;
mutex_lock(&dev->struct_mutex);
ret = drm_sman_set_range(&dev_priv->sman, VIA_MEM_AGP, 0,
agp->size >> VIA_MM_ALIGN_SHIFT);
if (ret) {
DRM_ERROR("AGP memory manager initialisation error\n");
mutex_unlock(&dev->struct_mutex);
return ret;
}
drm_mm_init(&dev_priv->agp_mm, 0, agp->size >> VIA_MM_ALIGN_SHIFT);
dev_priv->agp_initialized = 1;
dev_priv->agp_offset = agp->offset;
@ -61,17 +57,9 @@ int via_fb_init(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
drm_via_fb_t *fb = data;
drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
int ret;
mutex_lock(&dev->struct_mutex);
ret = drm_sman_set_range(&dev_priv->sman, VIA_MEM_VIDEO, 0,
fb->size >> VIA_MM_ALIGN_SHIFT);
if (ret) {
DRM_ERROR("VRAM memory manager initialisation error\n");
mutex_unlock(&dev->struct_mutex);
return ret;
}
drm_mm_init(&dev_priv->vram_mm, 0, fb->size >> VIA_MM_ALIGN_SHIFT);
dev_priv->vram_initialized = 1;
dev_priv->vram_offset = fb->offset;
@ -108,19 +96,25 @@ void via_lastclose(struct drm_device *dev)
return;
mutex_lock(&dev->struct_mutex);
drm_sman_cleanup(&dev_priv->sman);
dev_priv->vram_initialized = 0;
dev_priv->agp_initialized = 0;
if (dev_priv->vram_initialized) {
drm_mm_takedown(&dev_priv->vram_mm);
dev_priv->vram_initialized = 0;
}
if (dev_priv->agp_initialized) {
drm_mm_takedown(&dev_priv->agp_mm);
dev_priv->agp_initialized = 0;
}
mutex_unlock(&dev->struct_mutex);
}
int via_mem_alloc(struct drm_device *dev, void *data,
struct drm_file *file_priv)
struct drm_file *file)
{
drm_via_mem_t *mem = data;
int retval = 0;
struct drm_memblock_item *item;
int retval = 0, user_key;
struct via_memblock *item;
drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
struct via_file_private *file_priv = file->driver_priv;
unsigned long tmpSize;
if (mem->type > VIA_MEM_AGP) {
@ -136,24 +130,57 @@ int via_mem_alloc(struct drm_device *dev, void *data,
return -EINVAL;
}
tmpSize = (mem->size + VIA_MM_ALIGN_MASK) >> VIA_MM_ALIGN_SHIFT;
item = drm_sman_alloc(&dev_priv->sman, mem->type, tmpSize, 0,
(unsigned long)file_priv);
mutex_unlock(&dev->struct_mutex);
if (item) {
mem->offset = ((mem->type == VIA_MEM_VIDEO) ?
dev_priv->vram_offset : dev_priv->agp_offset) +
(item->mm->
offset(item->mm, item->mm_info) << VIA_MM_ALIGN_SHIFT);
mem->index = item->user_hash.key;
} else {
mem->offset = 0;
mem->size = 0;
mem->index = 0;
DRM_DEBUG("Video memory allocation failed\n");
item = kzalloc(sizeof(*item), GFP_KERNEL);
if (!item) {
retval = -ENOMEM;
goto fail_alloc;
}
tmpSize = (mem->size + VIA_MM_ALIGN_MASK) >> VIA_MM_ALIGN_SHIFT;
if (mem->type == VIA_MEM_AGP)
retval = drm_mm_insert_node(&dev_priv->agp_mm,
&item->mm_node,
tmpSize, 0);
else
retval = drm_mm_insert_node(&dev_priv->vram_mm,
&item->mm_node,
tmpSize, 0);
if (retval)
goto fail_alloc;
again:
if (idr_pre_get(&dev_priv->object_idr, GFP_KERNEL) == 0) {
retval = -ENOMEM;
goto fail_idr;
}
retval = idr_get_new_above(&dev_priv->object_idr, item, 1, &user_key);
if (retval == -EAGAIN)
goto again;
if (retval)
goto fail_idr;
list_add(&item->owner_list, &file_priv->obj_list);
mutex_unlock(&dev->struct_mutex);
mem->offset = ((mem->type == VIA_MEM_VIDEO) ?
dev_priv->vram_offset : dev_priv->agp_offset) +
((item->mm_node.start) << VIA_MM_ALIGN_SHIFT);
mem->index = user_key;
return 0;
fail_idr:
drm_mm_remove_node(&item->mm_node);
fail_alloc:
kfree(item);
mutex_unlock(&dev->struct_mutex);
mem->offset = 0;
mem->size = 0;
mem->index = 0;
DRM_DEBUG("Video memory allocation failed\n");
return retval;
}
@ -161,11 +188,22 @@ int via_mem_free(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
drm_via_private_t *dev_priv = dev->dev_private;
drm_via_mem_t *mem = data;
struct via_memblock *obj;
int ret;
mutex_lock(&dev->struct_mutex);
ret = drm_sman_free_key(&dev_priv->sman, mem->index);
obj = idr_find(&dev_priv->object_idr, mem->index);
if (obj == NULL) {
mutex_unlock(&dev->struct_mutex);
return -EINVAL;
}
idr_remove(&dev_priv->object_idr, mem->index);
list_del(&obj->owner_list);
drm_mm_remove_node(&obj->mm_node);
kfree(obj);
mutex_unlock(&dev->struct_mutex);
DRM_DEBUG("free = 0x%lx\n", mem->index);
return ret;
@ -173,12 +211,13 @@ int via_mem_free(struct drm_device *dev, void *data, struct drm_file *file_priv)
void via_reclaim_buffers_locked(struct drm_device *dev,
struct drm_file *file_priv)
struct drm_file *file)
{
drm_via_private_t *dev_priv = dev->dev_private;
struct via_file_private *file_priv = file->driver_priv;
struct via_memblock *entry, *next;
mutex_lock(&dev->struct_mutex);
if (drm_sman_owner_clean(&dev_priv->sman, (unsigned long)file_priv)) {
if (list_empty(&file_priv->obj_list)) {
mutex_unlock(&dev->struct_mutex);
return;
}
@ -186,7 +225,12 @@ void via_reclaim_buffers_locked(struct drm_device *dev,
if (dev->driver->dma_quiescent)
dev->driver->dma_quiescent(dev);
drm_sman_owner_cleanup(&dev_priv->sman, (unsigned long)file_priv);
list_for_each_entry_safe(entry, next, &file_priv->obj_list,
owner_list) {
list_del(&entry->owner_list);
drm_mm_remove_node(&entry->mm_node);
kfree(entry);
}
mutex_unlock(&dev->struct_mutex);
return;
}

176
include/drm/drm_sman.h
View File

@ -1,176 +0,0 @@
/**************************************************************************
*
* Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA.
* 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, sub license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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.
*
*
**************************************************************************/
/*
* Simple memory MANager interface that keeps track on allocate regions on a
* per "owner" basis. All regions associated with an "owner" can be released
* with a simple call. Typically if the "owner" exists. The owner is any
* "unsigned long" identifier. Can typically be a pointer to a file private
* struct or a context identifier.
*
* Authors:
* Thomas Hellström <thomas-at-tungstengraphics-dot-com>
*/
#ifndef DRM_SMAN_H
#define DRM_SMAN_H
#include "drmP.h"
#include "drm_hashtab.h"
/*
* A class that is an abstration of a simple memory allocator.
* The sman implementation provides a default such allocator
* using the drm_mm.c implementation. But the user can replace it.
* See the SiS implementation, which may use the SiS FB kernel module
* for memory management.
*/
struct drm_sman_mm {
/* private info. If allocated, needs to be destroyed by the destroy
function */
void *private;
/* Allocate a memory block with given size and alignment.
Return an opaque reference to the memory block */
void *(*allocate) (void *private, unsigned long size,
unsigned alignment);
/* Free a memory block. "ref" is the opaque reference that we got from
the "alloc" function */
void (*free) (void *private, void *ref);
/* Free all resources associated with this allocator */
void (*destroy) (void *private);
/* Return a memory offset from the opaque reference returned from the
"alloc" function */
unsigned long (*offset) (void *private, void *ref);
};
struct drm_memblock_item {
struct list_head owner_list;
struct drm_hash_item user_hash;
void *mm_info;
struct drm_sman_mm *mm;
struct drm_sman *sman;
};
struct drm_sman {
struct drm_sman_mm *mm;
int num_managers;
struct drm_open_hash owner_hash_tab;
struct drm_open_hash user_hash_tab;
struct list_head owner_items;
};
/*
* Take down a memory manager. This function should only be called after a
* successful init and after a call to drm_sman_cleanup.
*/
extern void drm_sman_takedown(struct drm_sman * sman);
/*
* Allocate structures for a manager.
* num_managers are the number of memory pools to manage. (VRAM, AGP, ....)
* user_order is the log2 of the number of buckets in the user hash table.
* set this to approximately log2 of the max number of memory regions
* that will be allocated for _all_ pools together.
* owner_order is the log2 of the number of buckets in the owner hash table.
* set this to approximately log2 of
* the number of client file connections that will
* be using the manager.
*
*/
extern int drm_sman_init(struct drm_sman * sman, unsigned int num_managers,
unsigned int user_order, unsigned int owner_order);
/*
* Initialize a drm_mm.c allocator. Should be called only once for each
* manager unless a customized allogator is used.
*/
extern int drm_sman_set_range(struct drm_sman * sman, unsigned int manager,
unsigned long start, unsigned long size);
/*
* Initialize a customized allocator for one of the managers.
* (See the SiS module). The object pointed to by "allocator" is copied,
* so it can be destroyed after this call.
*/
extern int drm_sman_set_manager(struct drm_sman * sman, unsigned int mananger,
struct drm_sman_mm * allocator);
/*
* Allocate a memory block. Aligment is not implemented yet.
*/
extern struct drm_memblock_item *drm_sman_alloc(struct drm_sman * sman,
unsigned int manager,
unsigned long size,
unsigned alignment,
unsigned long owner);
/*
* Free a memory block identified by its user hash key.
*/
extern int drm_sman_free_key(struct drm_sman * sman, unsigned int key);
/*
* returns 1 iff there are no stale memory blocks associated with this owner.
* Typically called to determine if we need to idle the hardware and call
* drm_sman_owner_cleanup. If there are no stale memory blocks, it removes all
* resources associated with owner.
*/
extern int drm_sman_owner_clean(struct drm_sman * sman, unsigned long owner);
/*
* Frees all stale memory blocks associated with this owner. Note that this
* requires that the hardware is finished with all blocks, so the graphics engine
* should be idled before this call is made. This function also frees
* any resources associated with "owner" and should be called when owner
* is not going to be referenced anymore.
*/
extern void drm_sman_owner_cleanup(struct drm_sman * sman, unsigned long owner);
/*
* Frees all stale memory blocks associated with the memory manager.
* See idling above.
*/
extern void drm_sman_cleanup(struct drm_sman * sman);
#endif

4
include/drm/sis_drm.h
View File

@ -64,4 +64,8 @@ typedef struct {
unsigned int offset, size;
} drm_sis_fb_t;
struct sis_file_private {
struct list_head obj_list;
};
#endif /* __SIS_DRM_H__ */

4
include/drm/via_drm.h
View File

@ -274,4 +274,8 @@ typedef struct drm_via_dmablit {
drm_via_blitsync_t sync;
} drm_via_dmablit_t;
struct via_file_private {
struct list_head obj_list;
};
#endif /* _VIA_DRM_H_ */