diff options
| author | Alex Deucher <alexdeucher@gmail.com> | 2010-10-22 02:51:05 -0400 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2010-10-26 10:26:39 +1000 |
| commit | f9d9c36204243d81e9d4dd28e58ee335257847d2 (patch) | |
| tree | dfa501a208584f6302927d6c6031a2c8884ca306 /drivers/gpu/drm/radeon/evergreend.h | |
| parent | 71901cc4109b3794b863884e348aff3c71e693cc (diff) | |
drm/radeon/kms: implement display watermark support for evergreen
Improper display watermarks can result in underflow to the display
controllers which can cause flickering or other artifacts.
This patch implements display watermark support and line buffer
allocation for evergreen asics.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/evergreend.h')
| -rw-r--r-- | drivers/gpu/drm/radeon/evergreend.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/evergreend.h b/drivers/gpu/drm/radeon/evergreend.h index 319aa9752d4..d507f438eed 100644 --- a/drivers/gpu/drm/radeon/evergreend.h +++ b/drivers/gpu/drm/radeon/evergreend.h @@ -412,6 +412,19 @@ #define SOFT_RESET_REGBB (1 << 22) #define SOFT_RESET_ORB (1 << 23) +/* display watermarks */ +#define DC_LB_MEMORY_SPLIT 0x6b0c +#define PRIORITY_A_CNT 0x6b18 +#define PRIORITY_MARK_MASK 0x7fff +#define PRIORITY_OFF (1 << 16) +#define PRIORITY_ALWAYS_ON (1 << 20) +#define PRIORITY_B_CNT 0x6b1c +#define PIPE0_ARBITRATION_CONTROL3 0x0bf0 +# define LATENCY_WATERMARK_MASK(x) ((x) << 16) +#define PIPE0_LATENCY_CONTROL 0x0bf4 +# define LATENCY_LOW_WATERMARK(x) ((x) << 0) +# define LATENCY_HIGH_WATERMARK(x) ((x) << 16) + #define IH_RB_CNTL 0x3e00 # define IH_RB_ENABLE (1 << 0) # define IH_IB_SIZE(x) ((x) << 1) /* log2 */ |