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drm/radeon/kms: Add support for SI GPU reset 

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher 2012-03-20 17:18:12 -04:00 committed by Dave Airlie
parent 0a96d72be9
commit c476dde2ed
2 changed files with 170 additions and 0 deletions
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100
drivers/gpu/drm/radeon/si.c
View File

@ -29,6 +29,8 @@
#include "atom.h"
extern void evergreen_fix_pci_max_read_req_size(struct radeon_device *rdev);
extern void evergreen_mc_stop(struct radeon_device *rdev, struct evergreen_mc_save *save);
extern void evergreen_mc_resume(struct radeon_device *rdev, struct evergreen_mc_save *save);
/* get temperature in millidegrees */
int si_get_temp(struct radeon_device *rdev)
@ -1508,3 +1510,101 @@ static void si_gpu_init(struct radeon_device *rdev)
udelay(50);
}
bool si_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
{
u32 srbm_status;
u32 grbm_status, grbm_status2;
u32 grbm_status_se0, grbm_status_se1;
struct r100_gpu_lockup *lockup = &rdev->config.si.lockup;
int r;
srbm_status = RREG32(SRBM_STATUS);
grbm_status = RREG32(GRBM_STATUS);
grbm_status2 = RREG32(GRBM_STATUS2);
grbm_status_se0 = RREG32(GRBM_STATUS_SE0);
grbm_status_se1 = RREG32(GRBM_STATUS_SE1);
if (!(grbm_status & GUI_ACTIVE)) {
r100_gpu_lockup_update(lockup, ring);
return false;
}
/* force CP activities */
r = radeon_ring_lock(rdev, ring, 2);
if (!r) {
/* PACKET2 NOP */
radeon_ring_write(ring, 0x80000000);
radeon_ring_write(ring, 0x80000000);
radeon_ring_unlock_commit(rdev, ring);
}
/* XXX deal with CP0,1,2 */
ring->rptr = RREG32(ring->rptr_reg);
return r100_gpu_cp_is_lockup(rdev, lockup, ring);
}
static int si_gpu_soft_reset(struct radeon_device *rdev)
{
struct evergreen_mc_save save;
u32 grbm_reset = 0;
if (!(RREG32(GRBM_STATUS) & GUI_ACTIVE))
return 0;
dev_info(rdev->dev, "GPU softreset \n");
dev_info(rdev->dev, " GRBM_STATUS=0x%08X\n",
RREG32(GRBM_STATUS));
dev_info(rdev->dev, " GRBM_STATUS2=0x%08X\n",
RREG32(GRBM_STATUS2));
dev_info(rdev->dev, " GRBM_STATUS_SE0=0x%08X\n",
RREG32(GRBM_STATUS_SE0));
dev_info(rdev->dev, " GRBM_STATUS_SE1=0x%08X\n",
RREG32(GRBM_STATUS_SE1));
dev_info(rdev->dev, " SRBM_STATUS=0x%08X\n",
RREG32(SRBM_STATUS));
evergreen_mc_stop(rdev, &save);
if (radeon_mc_wait_for_idle(rdev)) {
dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
}
/* Disable CP parsing/prefetching */
WREG32(CP_ME_CNTL, CP_ME_HALT | CP_PFP_HALT | CP_CE_HALT);
/* reset all the gfx blocks */
grbm_reset = (SOFT_RESET_CP |
SOFT_RESET_CB |
SOFT_RESET_DB |
SOFT_RESET_GDS |
SOFT_RESET_PA |
SOFT_RESET_SC |
SOFT_RESET_SPI |
SOFT_RESET_SX |
SOFT_RESET_TC |
SOFT_RESET_TA |
SOFT_RESET_VGT |
SOFT_RESET_IA);
dev_info(rdev->dev, " GRBM_SOFT_RESET=0x%08X\n", grbm_reset);
WREG32(GRBM_SOFT_RESET, grbm_reset);
(void)RREG32(GRBM_SOFT_RESET);
udelay(50);
WREG32(GRBM_SOFT_RESET, 0);
(void)RREG32(GRBM_SOFT_RESET);
/* Wait a little for things to settle down */
udelay(50);
dev_info(rdev->dev, " GRBM_STATUS=0x%08X\n",
RREG32(GRBM_STATUS));
dev_info(rdev->dev, " GRBM_STATUS2=0x%08X\n",
RREG32(GRBM_STATUS2));
dev_info(rdev->dev, " GRBM_STATUS_SE0=0x%08X\n",
RREG32(GRBM_STATUS_SE0));
dev_info(rdev->dev, " GRBM_STATUS_SE1=0x%08X\n",
RREG32(GRBM_STATUS_SE1));
dev_info(rdev->dev, " SRBM_STATUS=0x%08X\n",
RREG32(SRBM_STATUS));
evergreen_mc_resume(rdev, &save);
return 0;
}
int si_asic_reset(struct radeon_device *rdev)
{
return si_gpu_soft_reset(rdev);
}

70
drivers/gpu/drm/radeon/sid.h
View File

@ -52,6 +52,8 @@
#define DMIF_ADDR_CONFIG 0xBD4
#define SRBM_STATUS 0xE50
#define CC_SYS_RB_BACKEND_DISABLE 0xe80
#define GC_USER_SYS_RB_BACKEND_DISABLE 0xe84
@ -102,6 +104,74 @@
#define GRBM_CNTL 0x8000
#define GRBM_READ_TIMEOUT(x) ((x) << 0)
#define GRBM_STATUS2 0x8008
#define RLC_RQ_PENDING (1 << 0)
#define RLC_BUSY (1 << 8)
#define TC_BUSY (1 << 9)
#define GRBM_STATUS 0x8010
#define CMDFIFO_AVAIL_MASK 0x0000000F
#define RING2_RQ_PENDING (1 << 4)
#define SRBM_RQ_PENDING (1 << 5)
#define RING1_RQ_PENDING (1 << 6)
#define CF_RQ_PENDING (1 << 7)
#define PF_RQ_PENDING (1 << 8)
#define GDS_DMA_RQ_PENDING (1 << 9)
#define GRBM_EE_BUSY (1 << 10)
#define DB_CLEAN (1 << 12)
#define CB_CLEAN (1 << 13)
#define TA_BUSY (1 << 14)
#define GDS_BUSY (1 << 15)
#define VGT_BUSY (1 << 17)
#define IA_BUSY_NO_DMA (1 << 18)
#define IA_BUSY (1 << 19)
#define SX_BUSY (1 << 20)
#define SPI_BUSY (1 << 22)
#define BCI_BUSY (1 << 23)
#define SC_BUSY (1 << 24)
#define PA_BUSY (1 << 25)
#define DB_BUSY (1 << 26)
#define CP_COHERENCY_BUSY (1 << 28)
#define CP_BUSY (1 << 29)
#define CB_BUSY (1 << 30)
#define GUI_ACTIVE (1 << 31)
#define GRBM_STATUS_SE0 0x8014
#define GRBM_STATUS_SE1 0x8018
#define SE_DB_CLEAN (1 << 1)
#define SE_CB_CLEAN (1 << 2)
#define SE_BCI_BUSY (1 << 22)
#define SE_VGT_BUSY (1 << 23)
#define SE_PA_BUSY (1 << 24)
#define SE_TA_BUSY (1 << 25)
#define SE_SX_BUSY (1 << 26)
#define SE_SPI_BUSY (1 << 27)
#define SE_SC_BUSY (1 << 29)
#define SE_DB_BUSY (1 << 30)
#define SE_CB_BUSY (1 << 31)
#define GRBM_SOFT_RESET 0x8020
#define SOFT_RESET_CP (1 << 0)
#define SOFT_RESET_CB (1 << 1)
#define SOFT_RESET_RLC (1 << 2)
#define SOFT_RESET_DB (1 << 3)
#define SOFT_RESET_GDS (1 << 4)
#define SOFT_RESET_PA (1 << 5)
#define SOFT_RESET_SC (1 << 6)
#define SOFT_RESET_BCI (1 << 7)
#define SOFT_RESET_SPI (1 << 8)
#define SOFT_RESET_SX (1 << 10)
#define SOFT_RESET_TC (1 << 11)
#define SOFT_RESET_TA (1 << 12)
#define SOFT_RESET_VGT (1 << 14)
#define SOFT_RESET_IA (1 << 15)
#define CP_ME_CNTL 0x86D8
#define CP_CE_HALT (1 << 24)
#define CP_PFP_HALT (1 << 26)
#define CP_ME_HALT (1 << 28)
#define CP_RB0_RPTR 0x8700
#define CP_QUEUE_THRESHOLDS 0x8760
#define ROQ_IB1_START(x) ((x) << 0)
#define ROQ_IB2_START(x) ((x) << 8)