diff options
author | Alex Deucher <alexander.deucher@amd.com> | 2013-01-03 17:48:05 (GMT) |
---|---|---|
committer | Alex Deucher <alexander.deucher@amd.com> | 2013-01-04 02:29:14 (GMT) |
commit | 271d6fed6580c0a7af9b74b9aa90d8a62bdb326d (patch) | |
tree | 721455f4839d3298b9e9a23241fd916a80d0c791 /drivers | |
parent | 0ecebb9e0d14e9948e0b1529883a776758117d6f (diff) | |
download | linux-fsl-qoriq-271d6fed6580c0a7af9b74b9aa90d8a62bdb326d.tar.xz |
drm/radeon: switch to a finer grained reset for cayman/TN
No change in functionality as we currently set all the reset
flags.
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/gpu/drm/radeon/ni.c | 109 |
1 files changed, 70 insertions, 39 deletions
diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c index 8a9a75d..896f1cb 100644 --- a/drivers/gpu/drm/radeon/ni.c +++ b/drivers/gpu/drm/radeon/ni.c @@ -1306,15 +1306,13 @@ void cayman_dma_fini(struct radeon_device *rdev) radeon_ring_fini(rdev, &rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX]); } -static int cayman_gpu_soft_reset(struct radeon_device *rdev) +static void cayman_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_STATUS_SE0 = 0x%08X\n", @@ -1331,41 +1329,10 @@ static int cayman_gpu_soft_reset(struct radeon_device *rdev) RREG32(CP_BUSY_STAT)); dev_info(rdev->dev, " R_008680_CP_STAT = 0x%08X\n", RREG32(CP_STAT)); - dev_info(rdev->dev, " R_00D034_DMA_STATUS_REG = 0x%08X\n", - RREG32(DMA_STATUS_REG)); - dev_info(rdev->dev, " VM_CONTEXT0_PROTECTION_FAULT_ADDR 0x%08X\n", - RREG32(0x14F8)); - dev_info(rdev->dev, " VM_CONTEXT0_PROTECTION_FAULT_STATUS 0x%08X\n", - RREG32(0x14D8)); - dev_info(rdev->dev, " VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x%08X\n", - RREG32(0x14FC)); - dev_info(rdev->dev, " VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n", - RREG32(0x14DC)); - - evergreen_mc_stop(rdev, &save); - if (evergreen_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); - /* 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 | @@ -1387,8 +1354,6 @@ static int cayman_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)); @@ -1406,15 +1371,81 @@ static int cayman_gpu_soft_reset(struct radeon_device *rdev) RREG32(CP_BUSY_STAT)); dev_info(rdev->dev, " R_008680_CP_STAT = 0x%08X\n", RREG32(CP_STAT)); + +} + +static void cayman_gpu_soft_reset_dma(struct radeon_device *rdev) +{ + u32 tmp; + + if (RREG32(DMA_STATUS_REG) & DMA_IDLE) + return; + dev_info(rdev->dev, " R_00D034_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, " R_00D034_DMA_STATUS_REG = 0x%08X\n", + RREG32(DMA_STATUS_REG)); + +} + +static int cayman_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_CONTEXT0_PROTECTION_FAULT_ADDR 0x%08X\n", + RREG32(0x14F8)); + dev_info(rdev->dev, " VM_CONTEXT0_PROTECTION_FAULT_STATUS 0x%08X\n", + RREG32(0x14D8)); + dev_info(rdev->dev, " VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x%08X\n", + RREG32(0x14FC)); + dev_info(rdev->dev, " VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n", + RREG32(0x14DC)); + + evergreen_mc_stop(rdev, &save); + if (evergreen_mc_wait_for_idle(rdev)) { + dev_warn(rdev->dev, "Wait for MC idle timedout !\n"); + } + + if (reset_mask & (RADEON_RESET_GFX | RADEON_RESET_COMPUTE)) + cayman_gpu_soft_reset_gfx(rdev); + + if (reset_mask & RADEON_RESET_DMA) + cayman_gpu_soft_reset_dma(rdev); + + /* Wait a little for things to settle down */ + udelay(50); + evergreen_mc_resume(rdev, &save); return 0; } int cayman_asic_reset(struct radeon_device *rdev) { - return cayman_gpu_soft_reset(rdev); + return cayman_gpu_soft_reset(rdev, (RADEON_RESET_GFX | + RADEON_RESET_COMPUTE | + RADEON_RESET_DMA)); } /** |