diff options
| author | Kenneth Graunke <[email protected]> | 2012-08-07 09:13:04 -0700 |
|---|---|---|
| committer | Kenneth Graunke <[email protected]> | 2012-08-08 09:24:16 -0700 |
| commit | c4c78c275abffe8d1014b1355f02239859d6aa2b (patch) | |
| tree | 9978862437c43354412a9d917c4061194de77ec1 /src/mesa | |
| parent | 03f14664b6b12bc7853866fe613d8af350e51e08 (diff) | |
i965: Use 64-bit writes for timestamp queries.
The hardware seems to use the length of the PIPE_CONTROL command to
indicate whether the write is 64-bits or 32-bits. Which makes sense
for immediate writes.
Daniel discovered this by writing a pattern into the query object bo
and noticing that the high 32-bits were left intact, even on those
pipe control writes that seemingly worked.
Signed-off-by: Daniel Vetter <[email protected]>
Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Daniel Vetter <[email protected]>
Reviewed-by: Eric Anholt <[email protected]>
Diffstat (limited to 'src/mesa')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_queryobj.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_queryobj.c b/src/mesa/drivers/dri/i965/brw_queryobj.c index 229aeb7ce16..afa30914f93 100644 --- a/src/mesa/drivers/dri/i965/brw_queryobj.c +++ b/src/mesa/drivers/dri/i965/brw_queryobj.c @@ -49,14 +49,15 @@ static void write_timestamp(struct intel_context *intel, drm_intel_bo *query_bo, int idx) { if (intel->gen >= 6) { - BEGIN_BATCH(4); - OUT_BATCH(_3DSTATE_PIPE_CONTROL | (4 - 2)); + BEGIN_BATCH(5); + OUT_BATCH(_3DSTATE_PIPE_CONTROL | (5 - 2)); OUT_BATCH(PIPE_CONTROL_WRITE_TIMESTAMP); OUT_RELOC(query_bo, I915_GEM_DOMAIN_INSTRUCTION, I915_GEM_DOMAIN_INSTRUCTION, PIPE_CONTROL_GLOBAL_GTT_WRITE | idx * sizeof(uint64_t)); OUT_BATCH(0); + OUT_BATCH(0); ADVANCE_BATCH(); } else { BEGIN_BATCH(4); |