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| author | Alex Deucher <alexander.deucher@amd.com> | 2013-08-19 15:15:43 (GMT) |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2013-08-30 20:31:01 (GMT) |
| commit | 290d24576ccf1aa0373d2185cedfe262d0d4952a (patch) | |
| tree | a813201864119a4d235568a5537658167b167c9c /drivers/gpu/drm/radeon/sid.h | |
| parent | 0b31e02363b0db4e7931561bc6c141436e729d9f (diff) | |
| download | linux-fsl-qoriq-290d24576ccf1aa0373d2185cedfe262d0d4952a.tar.xz | |
drm/radeon: update line buffer allocation for dce6
We need to allocate line buffer to each display when
setting up the watermarks. Failure to do so can lead
to a blank screen. This fixes blank screen problems
on dce6 asics.
Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=64850
Based on an initial fix from:
Jay Cornwall <jay.cornwall@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/gpu/drm/radeon/sid.h')
| -rw-r--r-- | drivers/gpu/drm/radeon/sid.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/sid.h b/drivers/gpu/drm/radeon/sid.h index 91dae16..52d2ab6 100644 --- a/drivers/gpu/drm/radeon/sid.h +++ b/drivers/gpu/drm/radeon/sid.h @@ -282,6 +282,10 @@ #define DMIF_ADDR_CALC 0xC00 +#define PIPE0_DMIF_BUFFER_CONTROL 0x0ca0 +# define DMIF_BUFFERS_ALLOCATED(x) ((x) << 0) +# define DMIF_BUFFERS_ALLOCATED_COMPLETED (1 << 4) + #define SRBM_STATUS 0xE50 #define GRBM_RQ_PENDING (1 << 5) #define VMC_BUSY (1 << 8) |