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iris: Update aux state for color fast clears (xe2)

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The texturing and rendering preparation functions restrict
fast clear support in some cases to account for limitations
on prior platforms. Instead of updating those checks to avoid
resolves on Xe2, we can bypass them by representing the aux
state of a fast-cleared surface as compressed-no-clear. This
is valid because there is no longer a bit pattern which
references a clear value stored outside of the aux surface.

Suggested by Nanley Chery <nanley.g.chery@intel.com>

Signed-off-by: Jianxun Zhang <jianxun.zhang@intel.com>
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29906>
This commit is contained in:
Jianxun Zhang 2023-08-18 11:53:04 -07:00 • committed by Marge Bot
parent 1c92b31888
commit df006bba02
1 changed files with 3 additions and 1 deletions
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4
src/gallium/drivers/iris/iris_clear.c
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@ -370,7 +370,9 @@ fast_clear_color(struct iris_context *ice,
iris_batch_sync_region_end(batch);
iris_resource_set_aux_state(ice, res, level, box->z,
box->depth, ISL_AUX_STATE_CLEAR);
box->depth, devinfo->ver < 20 ?
ISL_AUX_STATE_CLEAR :
ISL_AUX_STATE_COMPRESSED_NO_CLEAR);
ice->state.dirty |= IRIS_DIRTY_RENDER_BUFFER;
ice->state.stage_dirty |= IRIS_ALL_STAGE_DIRTY_BINDINGS;
return;