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iris: implement another workaround for non pipelined states

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v2: add comment (Ken)

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3408>
This commit is contained in:
Lionel Landwerlin
2020-01-15 15:14:10 +02:00
parent e6e5cbac04
commit 9eca823cce
1 changed files with 14 additions and 1 deletions
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15
src/gallium/drivers/iris/iris_state.c
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@@ -387,6 +387,8 @@ emit_state(struct iris_batch *batch,
static void
flush_before_state_base_change(struct iris_batch *batch)
{
const struct gen_device_info *devinfo = &batch->screen->devinfo;
/* Flush before emitting STATE_BASE_ADDRESS.
*
* This isn't documented anywhere in the PRM. However, it seems to be
@@ -412,7 +414,18 @@ flush_before_state_base_change(struct iris_batch *batch)
"change STATE_BASE_ADDRESS (flushes)",
PIPE_CONTROL_RENDER_TARGET_FLUSH |
PIPE_CONTROL_DEPTH_CACHE_FLUSH |
PIPE_CONTROL_DATA_CACHE_FLUSH);
PIPE_CONTROL_DATA_CACHE_FLUSH |
/* GEN:BUG:1606662791:
*
* Software must program PIPE_CONTROL command
* with "HDC Pipeline Flush" prior to
* programming of the below two non-pipeline
* state :
* * STATE_BASE_ADDRESS
* * 3DSTATE_BINDING_TABLE_POOL_ALLOC
*/
((GEN_GEN == 12 && devinfo->revision == 0 /* A0 */ ?
PIPE_CONTROL_FLUSH_HDC : 0)));
}
static void