diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2014-09-17 17:41:04 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-10-05 14:52:12 -0700 |
| commit | f145ecfb3ad63c6ddd265347d4684217c0618ad2 (patch) | |
| tree | 4d3b1b2baf74da075d6e52a651487b10bf278700 /drivers/gpu/drm | |
| parent | 3f163fc70965087eec205146424f1b1ad1e553ef (diff) | |
| download | lwn-f145ecfb3ad63c6ddd265347d4684217c0618ad2.tar.gz lwn-f145ecfb3ad63c6ddd265347d4684217c0618ad2.zip | |
drm/radeon: don't reset dma on NI/SI init
commit 31a25e2caf9367365fcb0e57fd8fa5a42e9b73e4 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/radeon/ni_dma.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/drivers/gpu/drm/radeon/ni_dma.c b/drivers/gpu/drm/radeon/ni_dma.c index 7cf96b15377f..94fa49e974eb 100644 --- a/drivers/gpu/drm/radeon/ni_dma.c +++ b/drivers/gpu/drm/radeon/ni_dma.c @@ -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]; |