diff options
author | Alex Deucher <alexander.deucher@amd.com> | 2013-01-03 18:15:30 (GMT) |
---|---|---|
committer | Alex Deucher <alexander.deucher@amd.com> | 2013-01-04 02:29:35 (GMT) |
commit | 06bc6df0df52bf8d08247ded2f4d98966d5a046b (patch) | |
tree | 30eba03cd9f9da531759e8908ea141b2471d5a62 /drivers/gpu/drm | |
parent | 271d6fed6580c0a7af9b74b9aa90d8a62bdb326d (diff) | |
download | linux-fsl-qoriq-06bc6df0df52bf8d08247ded2f4d98966d5a046b.tar.xz |
drm/radeon: switch to a finer grained reset for SI (v2)
No change in functionality as we currently set all the reset
flags.
v2: fix typo
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r-- | drivers/gpu/drm/radeon/si.c | 99 |
1 files changed, 65 insertions, 34 deletions
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c index 4bf1733..3240a3d 100644 --- a/drivers/gpu/drm/radeon/si.c +++ b/drivers/gpu/drm/radeon/si.c @@ -2126,15 +2126,13 @@ bool si_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring) return radeon_ring_test_lockup(rdev, ring); } -static int si_gpu_soft_reset(struct radeon_device *rdev) +static void si_gpu_soft_reset_gfx(struct radeon_device *rdev) { - struct evergreen_mc_save save; - u32 grbm_reset = 0, tmp; + u32 grbm_reset = 0; if (!(RREG32(GRBM_STATUS) & GUI_ACTIVE)) - return 0; + return; - 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", @@ -2145,36 +2143,10 @@ static int si_gpu_soft_reset(struct radeon_device *rdev) RREG32(GRBM_STATUS_SE1)); dev_info(rdev->dev, " SRBM_STATUS=0x%08X\n", RREG32(SRBM_STATUS)); - dev_info(rdev->dev, " DMA_STATUS_REG = 0x%08X\n", - RREG32(DMA_STATUS_REG)); - dev_info(rdev->dev, " VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x%08X\n", - RREG32(VM_CONTEXT1_PROTECTION_FAULT_ADDR)); - dev_info(rdev->dev, " VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n", - RREG32(VM_CONTEXT1_PROTECTION_FAULT_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); - /* dma0 */ - tmp = RREG32(DMA_RB_CNTL + DMA0_REGISTER_OFFSET); - tmp &= ~DMA_RB_ENABLE; - WREG32(DMA_RB_CNTL + DMA0_REGISTER_OFFSET, tmp); - - /* dma1 */ - tmp = RREG32(DMA_RB_CNTL + DMA1_REGISTER_OFFSET); - tmp &= ~DMA_RB_ENABLE; - WREG32(DMA_RB_CNTL + DMA1_REGISTER_OFFSET, tmp); - - /* Reset dma */ - WREG32(SRBM_SOFT_RESET, SOFT_RESET_DMA | SOFT_RESET_DMA1); - RREG32(SRBM_SOFT_RESET); - udelay(50); - WREG32(SRBM_SOFT_RESET, 0); - /* reset all the gfx blocks */ grbm_reset = (SOFT_RESET_CP | SOFT_RESET_CB | @@ -2196,8 +2168,7 @@ static int si_gpu_soft_reset(struct radeon_device *rdev) 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", @@ -2208,15 +2179,75 @@ static int si_gpu_soft_reset(struct radeon_device *rdev) RREG32(GRBM_STATUS_SE1)); dev_info(rdev->dev, " SRBM_STATUS=0x%08X\n", RREG32(SRBM_STATUS)); +} + +static void si_gpu_soft_reset_dma(struct radeon_device *rdev) +{ + u32 tmp; + + if (RREG32(DMA_STATUS_REG) & DMA_IDLE) + return; + dev_info(rdev->dev, " DMA_STATUS_REG = 0x%08X\n", RREG32(DMA_STATUS_REG)); + + /* dma0 */ + tmp = RREG32(DMA_RB_CNTL + DMA0_REGISTER_OFFSET); + tmp &= ~DMA_RB_ENABLE; + WREG32(DMA_RB_CNTL + DMA0_REGISTER_OFFSET, tmp); + + /* dma1 */ + tmp = RREG32(DMA_RB_CNTL + DMA1_REGISTER_OFFSET); + tmp &= ~DMA_RB_ENABLE; + WREG32(DMA_RB_CNTL + DMA1_REGISTER_OFFSET, tmp); + + /* Reset dma */ + WREG32(SRBM_SOFT_RESET, SOFT_RESET_DMA | SOFT_RESET_DMA1); + RREG32(SRBM_SOFT_RESET); + udelay(50); + WREG32(SRBM_SOFT_RESET, 0); + + dev_info(rdev->dev, " DMA_STATUS_REG = 0x%08X\n", + RREG32(DMA_STATUS_REG)); +} + +static int si_gpu_soft_reset(struct radeon_device *rdev, u32 reset_mask) +{ + struct evergreen_mc_save save; + + if (reset_mask == 0) + return 0; + + dev_info(rdev->dev, "GPU softreset: 0x%08X\n", reset_mask); + + dev_info(rdev->dev, " VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x%08X\n", + RREG32(VM_CONTEXT1_PROTECTION_FAULT_ADDR)); + dev_info(rdev->dev, " VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n", + RREG32(VM_CONTEXT1_PROTECTION_FAULT_STATUS)); + + evergreen_mc_stop(rdev, &save); + if (radeon_mc_wait_for_idle(rdev)) { + dev_warn(rdev->dev, "Wait for MC idle timedout !\n"); + } + + if (reset_mask & (RADEON_RESET_GFX | RADEON_RESET_COMPUTE)) + si_gpu_soft_reset_gfx(rdev); + + if (reset_mask & RADEON_RESET_DMA) + si_gpu_soft_reset_dma(rdev); + + /* Wait a little for things to settle down */ + udelay(50); + evergreen_mc_resume(rdev, &save); return 0; } int si_asic_reset(struct radeon_device *rdev) { - return si_gpu_soft_reset(rdev); + return si_gpu_soft_reset(rdev, (RADEON_RESET_GFX | + RADEON_RESET_COMPUTE | + RADEON_RESET_DMA)); } /* MC */ |