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linux/drivers/gpu/drm/radeon/rs400.c
Dave Airlie 7a50f01a4a drm/radeon/kms: vram sizing on certain r100 chips needs workaround. 
If an rn50/r100/m6/m7 GPU has < 64MB RAM, i.e. 8/16/32, the
aperture used to calculate the MC_FB_LOCATION needs to be worked
out from the CONFIG_APER_SIZE register, and not the actual vram size.

TTM VRAM size was also being initialised wrong, use actual vram size
to initialise it.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-07-29 15:53:25 +10:00

412 lines
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/*
* Copyright 2008 Advanced Micro Devices, Inc.
* Copyright 2008 Red Hat Inc.
* Copyright 2009 Jerome Glisse.
*
* 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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: Dave Airlie
* Alex Deucher
* Jerome Glisse
*/
#include <linux/seq_file.h>
#include <drm/drmP.h>
#include "radeon_reg.h"
#include "radeon.h"
#include "radeon_share.h"
/* rs400,rs480 depends on : */
void r100_hdp_reset(struct radeon_device *rdev);
void r100_mc_disable_clients(struct radeon_device *rdev);
int r300_mc_wait_for_idle(struct radeon_device *rdev);
void r420_pipes_init(struct radeon_device *rdev);
/* This files gather functions specifics to :
* rs400,rs480
*
* Some of these functions might be used by newer ASICs.
*/
void rs400_gpu_init(struct radeon_device *rdev);
int rs400_debugfs_pcie_gart_info_init(struct radeon_device *rdev);
/*
* GART functions.
*/
void rs400_gart_adjust_size(struct radeon_device *rdev)
{
/* Check gart size */
switch (rdev->mc.gtt_size/(1024*1024)) {
case 32:
case 64:
case 128:
case 256:
case 512:
case 1024:
case 2048:
break;
default:
DRM_ERROR("Unable to use IGP GART size %uM\n",
rdev->mc.gtt_size >> 20);
DRM_ERROR("Valid GART size for IGP are 32M,64M,128M,256M,512M,1G,2G\n");
DRM_ERROR("Forcing to 32M GART size\n");
rdev->mc.gtt_size = 32 * 1024 * 1024;
return;
}
if (rdev->family == CHIP_RS400 || rdev->family == CHIP_RS480) {
/* FIXME: RS400 & RS480 seems to have issue with GART size
* if 4G of system memory (needs more testing) */
rdev->mc.gtt_size = 32 * 1024 * 1024;
DRM_ERROR("Forcing to 32M GART size (because of ASIC bug ?)\n");
}
}
void rs400_gart_tlb_flush(struct radeon_device *rdev)
{
uint32_t tmp;
unsigned int timeout = rdev->usec_timeout;
WREG32_MC(RS480_GART_CACHE_CNTRL, RS480_GART_CACHE_INVALIDATE);
do {
tmp = RREG32_MC(RS480_GART_CACHE_CNTRL);
if ((tmp & RS480_GART_CACHE_INVALIDATE) == 0)
break;
DRM_UDELAY(1);
timeout--;
} while (timeout > 0);
WREG32_MC(RS480_GART_CACHE_CNTRL, 0);
}
int rs400_gart_enable(struct radeon_device *rdev)
{
uint32_t size_reg;
uint32_t tmp;
int r;
/* Initialize common gart structure */
r = radeon_gart_init(rdev);
if (r) {
return r;
}
if (rs400_debugfs_pcie_gart_info_init(rdev)) {
DRM_ERROR("Failed to register debugfs file for RS400 GART !\n");
}
tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH);
tmp |= RS690_DIS_OUT_OF_PCI_GART_ACCESS;
WREG32_MC(RS690_AIC_CTRL_SCRATCH, tmp);
/* Check gart size */
switch(rdev->mc.gtt_size / (1024 * 1024)) {
case 32:
size_reg = RS480_VA_SIZE_32MB;
break;
case 64:
size_reg = RS480_VA_SIZE_64MB;
break;
case 128:
size_reg = RS480_VA_SIZE_128MB;
break;
case 256:
size_reg = RS480_VA_SIZE_256MB;
break;
case 512:
size_reg = RS480_VA_SIZE_512MB;
break;
case 1024:
size_reg = RS480_VA_SIZE_1GB;
break;
case 2048:
size_reg = RS480_VA_SIZE_2GB;
break;
default:
return -EINVAL;
}
if (rdev->gart.table.ram.ptr == NULL) {
rdev->gart.table_size = rdev->gart.num_gpu_pages * 4;
r = radeon_gart_table_ram_alloc(rdev);
if (r) {
return r;
}
}
/* It should be fine to program it to max value */
if (rdev->family == CHIP_RS690 || (rdev->family == CHIP_RS740)) {
WREG32_MC(RS690_MCCFG_AGP_BASE, 0xFFFFFFFF);
WREG32_MC(RS690_MCCFG_AGP_BASE_2, 0);
} else {
WREG32(RADEON_AGP_BASE, 0xFFFFFFFF);
WREG32(RS480_AGP_BASE_2, 0);
}
tmp = rdev->mc.gtt_location + rdev->mc.gtt_size - 1;
tmp = REG_SET(RS690_MC_AGP_TOP, tmp >> 16);
tmp |= REG_SET(RS690_MC_AGP_START, rdev->mc.gtt_location >> 16);
if ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740)) {
WREG32_MC(RS690_MCCFG_AGP_LOCATION, tmp);
tmp = RREG32(RADEON_BUS_CNTL) & ~RS600_BUS_MASTER_DIS;
WREG32(RADEON_BUS_CNTL, tmp);
} else {
WREG32(RADEON_MC_AGP_LOCATION, tmp);
tmp = RREG32(RADEON_BUS_CNTL) & ~RADEON_BUS_MASTER_DIS;
WREG32(RADEON_BUS_CNTL, tmp);
}
/* Table should be in 32bits address space so ignore bits above. */
tmp = (u32)rdev->gart.table_addr & 0xfffff000;
tmp |= (upper_32_bits(rdev->gart.table_addr) & 0xff) << 4;
WREG32_MC(RS480_GART_BASE, tmp);
/* TODO: more tweaking here */
WREG32_MC(RS480_GART_FEATURE_ID,
(RS480_TLB_ENABLE |
RS480_GTW_LAC_EN | RS480_1LEVEL_GART));
/* Disable snooping */
WREG32_MC(RS480_AGP_MODE_CNTL,
(1 << RS480_REQ_TYPE_SNOOP_SHIFT) | RS480_REQ_TYPE_SNOOP_DIS);
/* Disable AGP mode */
/* FIXME: according to doc we should set HIDE_MMCFG_BAR=0,
* AGPMODE30=0 & AGP30ENHANCED=0 in NB_CNTL */
if ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740)) {
WREG32_MC(RS480_MC_MISC_CNTL,
(RS480_GART_INDEX_REG_EN | RS690_BLOCK_GFX_D3_EN));
} else {
WREG32_MC(RS480_MC_MISC_CNTL, RS480_GART_INDEX_REG_EN);
}
/* Enable gart */
WREG32_MC(RS480_AGP_ADDRESS_SPACE_SIZE, (RS480_GART_EN | size_reg));
rs400_gart_tlb_flush(rdev);
rdev->gart.ready = true;
return 0;
}
void rs400_gart_disable(struct radeon_device *rdev)
{
uint32_t tmp;
tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH);
tmp |= RS690_DIS_OUT_OF_PCI_GART_ACCESS;
WREG32_MC(RS690_AIC_CTRL_SCRATCH, tmp);
WREG32_MC(RS480_AGP_ADDRESS_SPACE_SIZE, 0);
}
int rs400_gart_set_page(struct radeon_device *rdev, int i, uint64_t addr)
{
uint32_t entry;
if (i < 0 || i > rdev->gart.num_gpu_pages) {
return -EINVAL;
}
entry = (lower_32_bits(addr) & PAGE_MASK) |
((upper_32_bits(addr) & 0xff) << 4) |
0xc;
entry = cpu_to_le32(entry);
rdev->gart.table.ram.ptr[i] = entry;
return 0;
}
/*
* MC functions.
*/
int rs400_mc_init(struct radeon_device *rdev)
{
uint32_t tmp;
int r;
if (r100_debugfs_rbbm_init(rdev)) {
DRM_ERROR("Failed to register debugfs file for RBBM !\n");
}
rs400_gpu_init(rdev);
rs400_gart_disable(rdev);
rdev->mc.gtt_location = rdev->mc.mc_vram_size;
rdev->mc.gtt_location += (rdev->mc.gtt_size - 1);
rdev->mc.gtt_location &= ~(rdev->mc.gtt_size - 1);
r = radeon_mc_setup(rdev);
if (r) {
return r;
}
r100_mc_disable_clients(rdev);
if (r300_mc_wait_for_idle(rdev)) {
printk(KERN_WARNING "Failed to wait MC idle while "
"programming pipes. Bad things might happen.\n");
}
tmp = rdev->mc.vram_location + rdev->mc.mc_vram_size - 1;
tmp = REG_SET(RADEON_MC_FB_TOP, tmp >> 16);
tmp |= REG_SET(RADEON_MC_FB_START, rdev->mc.vram_location >> 16);
WREG32(RADEON_MC_FB_LOCATION, tmp);
tmp = RREG32(RADEON_HOST_PATH_CNTL) | RADEON_HP_LIN_RD_CACHE_DIS;
WREG32(RADEON_HOST_PATH_CNTL, tmp | RADEON_HDP_SOFT_RESET | RADEON_HDP_READ_BUFFER_INVALIDATE);
(void)RREG32(RADEON_HOST_PATH_CNTL);
WREG32(RADEON_HOST_PATH_CNTL, tmp);
(void)RREG32(RADEON_HOST_PATH_CNTL);
return 0;
}
void rs400_mc_fini(struct radeon_device *rdev)
{
rs400_gart_disable(rdev);
radeon_gart_table_ram_free(rdev);
radeon_gart_fini(rdev);
}
/*
* Global GPU functions
*/
void rs400_errata(struct radeon_device *rdev)
{
rdev->pll_errata = 0;
}
void rs400_gpu_init(struct radeon_device *rdev)
{
/* FIXME: HDP same place on rs400 ? */
r100_hdp_reset(rdev);
/* FIXME: is this correct ? */
r420_pipes_init(rdev);
if (r300_mc_wait_for_idle(rdev)) {
printk(KERN_WARNING "Failed to wait MC idle while "
"programming pipes. Bad things might happen.\n");
}
}
/*
* VRAM info.
*/
void rs400_vram_info(struct radeon_device *rdev)
{
rs400_gart_adjust_size(rdev);
/* DDR for all card after R300 & IGP */
rdev->mc.vram_is_ddr = true;
rdev->mc.vram_width = 128;
r100_vram_init_sizes(rdev);
}
/*
* Indirect registers accessor
*/
uint32_t rs400_mc_rreg(struct radeon_device *rdev, uint32_t reg)
{
uint32_t r;
WREG32(RS480_NB_MC_INDEX, reg & 0xff);
r = RREG32(RS480_NB_MC_DATA);
WREG32(RS480_NB_MC_INDEX, 0xff);
return r;
}
void rs400_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
{
WREG32(RS480_NB_MC_INDEX, ((reg) & 0xff) | RS480_NB_MC_IND_WR_EN);
WREG32(RS480_NB_MC_DATA, (v));
WREG32(RS480_NB_MC_INDEX, 0xff);
}
/*
* Debugfs info
*/
#if defined(CONFIG_DEBUG_FS)
static int rs400_debugfs_gart_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
struct radeon_device *rdev = dev->dev_private;
uint32_t tmp;
tmp = RREG32(RADEON_HOST_PATH_CNTL);
seq_printf(m, "HOST_PATH_CNTL 0x%08x\n", tmp);
tmp = RREG32(RADEON_BUS_CNTL);
seq_printf(m, "BUS_CNTL 0x%08x\n", tmp);
tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH);
seq_printf(m, "AIC_CTRL_SCRATCH 0x%08x\n", tmp);
if (rdev->family == CHIP_RS690 || (rdev->family == CHIP_RS740)) {
tmp = RREG32_MC(RS690_MCCFG_AGP_BASE);
seq_printf(m, "MCCFG_AGP_BASE 0x%08x\n", tmp);
tmp = RREG32_MC(RS690_MCCFG_AGP_BASE_2);
seq_printf(m, "MCCFG_AGP_BASE_2 0x%08x\n", tmp);
tmp = RREG32_MC(RS690_MCCFG_AGP_LOCATION);
seq_printf(m, "MCCFG_AGP_LOCATION 0x%08x\n", tmp);
tmp = RREG32_MC(0x100);
seq_printf(m, "MCCFG_FB_LOCATION 0x%08x\n", tmp);
tmp = RREG32(0x134);
seq_printf(m, "HDP_FB_LOCATION 0x%08x\n", tmp);
} else {
tmp = RREG32(RADEON_AGP_BASE);
seq_printf(m, "AGP_BASE 0x%08x\n", tmp);
tmp = RREG32(RS480_AGP_BASE_2);
seq_printf(m, "AGP_BASE_2 0x%08x\n", tmp);
tmp = RREG32(RADEON_MC_AGP_LOCATION);
seq_printf(m, "MC_AGP_LOCATION 0x%08x\n", tmp);
}
tmp = RREG32_MC(RS480_GART_BASE);
seq_printf(m, "GART_BASE 0x%08x\n", tmp);
tmp = RREG32_MC(RS480_GART_FEATURE_ID);
seq_printf(m, "GART_FEATURE_ID 0x%08x\n", tmp);
tmp = RREG32_MC(RS480_AGP_MODE_CNTL);
seq_printf(m, "AGP_MODE_CONTROL 0x%08x\n", tmp);
tmp = RREG32_MC(RS480_MC_MISC_CNTL);
seq_printf(m, "MC_MISC_CNTL 0x%08x\n", tmp);
tmp = RREG32_MC(0x5F);
seq_printf(m, "MC_MISC_UMA_CNTL 0x%08x\n", tmp);
tmp = RREG32_MC(RS480_AGP_ADDRESS_SPACE_SIZE);
seq_printf(m, "AGP_ADDRESS_SPACE_SIZE 0x%08x\n", tmp);
tmp = RREG32_MC(RS480_GART_CACHE_CNTRL);
seq_printf(m, "GART_CACHE_CNTRL 0x%08x\n", tmp);
tmp = RREG32_MC(0x3B);
seq_printf(m, "MC_GART_ERROR_ADDRESS 0x%08x\n", tmp);
tmp = RREG32_MC(0x3C);
seq_printf(m, "MC_GART_ERROR_ADDRESS_HI 0x%08x\n", tmp);
tmp = RREG32_MC(0x30);
seq_printf(m, "GART_ERROR_0 0x%08x\n", tmp);
tmp = RREG32_MC(0x31);
seq_printf(m, "GART_ERROR_1 0x%08x\n", tmp);
tmp = RREG32_MC(0x32);
seq_printf(m, "GART_ERROR_2 0x%08x\n", tmp);
tmp = RREG32_MC(0x33);
seq_printf(m, "GART_ERROR_3 0x%08x\n", tmp);
tmp = RREG32_MC(0x34);
seq_printf(m, "GART_ERROR_4 0x%08x\n", tmp);
tmp = RREG32_MC(0x35);
seq_printf(m, "GART_ERROR_5 0x%08x\n", tmp);
tmp = RREG32_MC(0x36);
seq_printf(m, "GART_ERROR_6 0x%08x\n", tmp);
tmp = RREG32_MC(0x37);
seq_printf(m, "GART_ERROR_7 0x%08x\n", tmp);
return 0;
}
static struct drm_info_list rs400_gart_info_list[] = {
{"rs400_gart_info", rs400_debugfs_gart_info, 0, NULL},
};
#endif
int rs400_debugfs_pcie_gart_info_init(struct radeon_device *rdev)
{
#if defined(CONFIG_DEBUG_FS)
return radeon_debugfs_add_files(rdev, rs400_gart_info_list, 1);
#else
return 0;
#endif
}
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