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authorKenneth Graunke <kenneth@whitecape.org>2013-07-10 13:18:34 -0700
committerKenneth Graunke <kenneth@whitecape.org>2013-07-15 19:40:51 -0700
commit3f64cfabfc0bae7f5dba9d541680edcc6b745cea (patch)
tree7f6c1a11b56a154436a75f74d327d9db4b34a1c1 /src/mesa
parentf254c942043e9da5f028688a652ccf1c18046922 (diff)
i965: Cite the 965 PRM for "the data cache is the sampler cache".
Presumably, this comment exists to justify the usage of I915_GEM_DOMAIN_SAMPLER for this relocation. At one point, this was necessary to ensure that the right flushing was done to keep caches coherent. These days, the kernel just flushes everything, so I don't think it matters. Still, the comment is interesting, so leave it in place. Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Diffstat (limited to 'src/mesa')
-rw-r--r--src/mesa/drivers/dri/i965/brw_wm_surface_state.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
index c678919cc15..8847f916536 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
@@ -347,9 +347,9 @@ brw_create_constant_surface(struct brw_context *brw,
surf[4] = 0;
surf[5] = 0;
- /* Emit relocation to surface contents. Section 5.1.1 of the gen4
- * bspec ("Data Cache") says that the data cache does not exist as
- * a separate cache and is just the sampler cache.
+ /* Emit relocation to surface contents. The 965 PRM, Volume 4, section
+ * 5.1.2 "Data Cache" says: "the data cache does not exist as a separate
+ * physical cache. It is mapped in hardware to the sampler cache."
*/
drm_intel_bo_emit_reloc(brw->batch.bo,
*out_offset + 4,