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i965: Enable fast clears for multi-lod

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On SKL (also fast clear is used for level 0, layer 0):

Manhattan 3.0:          3.88434% +/- 0.814659%
Manhattan 3.0 off:      3.25542% +/- 0.101149%
Trex:                   3.43501% +/- 0.31223%
Trex off:               4.13781% +/- 0.0993569%

ON BDW:

Manhattan 3.0:          1.37079% +/- 0.571208%
Manhattan 3.0 off:      1.74029% +/- 0.267499%

v2 (Ben, Matt): Fix rebase error by removing the perf warning
v3 (Topi): Rebased on top of revised eligibility logic

Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
This commit is contained in:
Ben Widawsky 2016-04-20 07:23:06 -07:00 • committed by Topi Pohjolainen
parent 3aec6bce5b
commit 2a7db18890
1 changed files with 0 additions and 15 deletions
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15
src/mesa/drivers/dri/i965/intel_mipmap_tree.c
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@ -201,21 +201,6 @@ intel_miptree_supports_non_msrt_fast_clear(struct brw_context *brw,
if (brw->gen < 8 && (mip_mapped || arrayed))
return false;
/* Not implemented yet. */
if (mip_mapped) {
perf_debug("Multi-LOD fast clear - giving up (%dx%dx%d).\n",
mt->logical_width0, mt->logical_height0, mt->last_level);
return false;
}
/* Not implemented yet. */
if (arrayed) {
perf_debug("Layered fast clear - giving up. (%dx%d%d)\n",
mt->logical_width0, mt->logical_height0,
mt->physical_depth0);
return false;
}
/* There's no point in using an MCS buffer if the surface isn't in a
* renderable format.
*/