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r600g,radeonsi: Always use GTT again for PIPE_USAGE_STREAM buffers

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Putting those in VRAM can cause long pauses due to buffers being moved
into / out of VRAM.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=84662
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 7b4276d7ac)
This commit is contained in:
Michel Dänzer 2014-08-26 18:21:50 +09:00 • committed by Emil Velikov
parent 125cd86cd4
commit 64c2bdc334
1 changed files with 3 additions and 1 deletions
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4
src/gallium/drivers/radeon/r600_buffer_common.c
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@ -110,11 +110,13 @@ bool r600_init_resource(struct r600_common_screen *rscreen,
enum radeon_bo_flag flags = 0;
switch (res->b.b.usage) {
case PIPE_USAGE_STREAM:
flags = RADEON_FLAG_GTT_WC;
/* fall through */
case PIPE_USAGE_STAGING:
/* Transfers are likely to occur more often with these resources. */
res->domains = RADEON_DOMAIN_GTT;
break;
case PIPE_USAGE_STREAM:
case PIPE_USAGE_DYNAMIC:
/* Older kernels didn't always flush the HDP cache before
* CS execution