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drm/radeon: don't reset dma on NI/SI init 

Otherwise we may lose the DMA golden settings which can
lead to hangs, etc.

bug:
https://www.libreoffice.org/bugzilla/show_bug.cgi?id=83500

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Alex Deucher 2014-09-17 17:41:04 -04:00
parent 39da038479
commit 31a25e2caf
1 changed files with 0 additions and 6 deletions
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6
drivers/gpu/drm/radeon/ni_dma.c
View File

@ -191,12 +191,6 @@ int cayman_dma_resume(struct radeon_device *rdev)
u32 reg_offset, wb_offset;
int i, r;
/* Reset dma */
WREG32(SRBM_SOFT_RESET, SOFT_RESET_DMA | SOFT_RESET_DMA1);
RREG32(SRBM_SOFT_RESET);
udelay(50);
WREG32(SRBM_SOFT_RESET, 0);
for (i = 0; i < 2; i++) {
if (i == 0) {
ring = &rdev->ring[R600_RING_TYPE_DMA_INDEX];