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| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2011-10-09 18:43:14 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2011-10-11 09:54:17 +0200 |
| commit | d0184b59095d5b8fab1a65ceba075d29189130d4 (patch) | |
| tree | dea200f1ba1ca71d65d7f9bc97eddc8e51c286a1 /src/i965_reg.h | |
| parent | 4a2e833ab17e4facf0f90166b82a5696a1deef91 (diff) | |
snb: implement PIPE_CONTROL workaround
Sandybdrige requires an elaborate dance to flush caches without
hanging the gpu. See public docs Vol2Part1 1.7.4.1 PIPE_CONTROL
or the corrensponding code in mesa/kernel.
This (together with the corresponding patch for the kernel) seems to
fix the hangs in cairo-perf-traces I'm seeing on my snb machine.
v2: Incorporate review from Chris Wilson. For paranoia keep all three
PIPE_CONTROL cmds in the same batchbuffer to avoid upsetting the gpu.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'src/i965_reg.h')
| -rw-r--r-- | src/i965_reg.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/i965_reg.h b/src/i965_reg.h index 904e506f..e7b0d15d 100644 --- a/src/i965_reg.h +++ b/src/i965_reg.h @@ -294,6 +294,7 @@ #define BRW_CLIP_ENABLE 1 /* for BRW_PIPE_CONTROL */ +#define BRW_PIPE_CONTROL_CS_STALL (1 << 20) #define BRW_PIPE_CONTROL_NOWRITE (0 << 14) #define BRW_PIPE_CONTROL_WRITE_QWORD (1 << 14) #define BRW_PIPE_CONTROL_WRITE_DEPTH (2 << 14) @@ -305,6 +306,7 @@ #define BRW_PIPE_CONTROL_NOTIFY_ENABLE (1 << 8) #define BRW_PIPE_CONTROL_GLOBAL_GTT (1 << 2) #define BRW_PIPE_CONTROL_LOCAL_PGTT (0 << 2) +#define BRW_PIPE_CONTROL_STALL_AT_SCOREBOARD (1 << 1) #define BRW_PIPE_CONTROL_DEPTH_CACHE_FLUSH (1 << 0) /* VERTEX_BUFFER_STATE Structure */ |