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| author | Alex Deucher <alexander.deucher@amd.com> | 2014-09-18 10:23:04 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-10-05 14:52:13 -0700 |
| commit | 973eb2d61d3eb57a3adee44bafb1125a44b035ce (patch) | |
| tree | 153f07d9aef76cd9abc41250aaeeeb48c33d14a0 /drivers/gpu | |
| parent | 92b17de46c089b63c420aac8baafa28b58cdf968 (diff) | |
| download | lwn-973eb2d61d3eb57a3adee44bafb1125a44b035ce.tar.gz lwn-973eb2d61d3eb57a3adee44bafb1125a44b035ce.zip | |
drm/radeon: don't reset dma on r6xx-evergreen init
commit c1789a2e66a4209fe5035eca11fdd729b2ffdd82 upstream.
Otherwise we may lose the DMA golden settings which can
lead to hangs, etc.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/radeon/r600_dma.c | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/drivers/gpu/drm/radeon/r600_dma.c b/drivers/gpu/drm/radeon/r600_dma.c index b2d4c91e6272..99495513f6b1 100644 --- a/drivers/gpu/drm/radeon/r600_dma.c +++ b/drivers/gpu/drm/radeon/r600_dma.c @@ -124,15 +124,6 @@ int r600_dma_resume(struct radeon_device *rdev) u32 rb_bufsz; int r; - /* Reset dma */ - if (rdev->family >= CHIP_RV770) - WREG32(SRBM_SOFT_RESET, RV770_SOFT_RESET_DMA); - else - WREG32(SRBM_SOFT_RESET, SOFT_RESET_DMA); - RREG32(SRBM_SOFT_RESET); - udelay(50); - WREG32(SRBM_SOFT_RESET, 0); - WREG32(DMA_SEM_INCOMPLETE_TIMER_CNTL, 0); WREG32(DMA_SEM_WAIT_FAIL_TIMER_CNTL, 0); |