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radeonsi: don't use fast color clear for small images even on APUs

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Increase the limit and handle non-square images better.

This makes glxgears 20% faster on APUs, and a little more on dGPUs.
We all use and love glxgears.

Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
This commit is contained in:
Marek Olšák
2017-12-13 00:40:19 +01:00
parent afdcf0f6b2
commit f9cd6c502e
1 changed files with 4 additions and 5 deletions
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src/gallium/drivers/radeonsi/si_clear.c
+4 -5
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@@ -425,12 +425,11 @@ static void si_do_fast_color_clear(struct si_context *sctx,
* the eliminate pass can be higher than the benefit of fast
* clear. The closed driver does this, but the numbers may differ.
*
* Always use fast clear on APUs.
* This helps on both dGPUs and APUs, even small APUs like Mullins.
*/
bool too_small = sctx->screen->info.has_dedicated_vram &&
tex->resource.b.b.nr_samples <= 1 &&
tex->resource.b.b.width0 <= 256 &&
tex->resource.b.b.height0 <= 256;
bool too_small = tex->resource.b.b.nr_samples <= 1 &&
tex->resource.b.b.width0 *
tex->resource.b.b.height0 <= 512 * 512;
/* Try to clear DCC first, otherwise try CMASK. */
if (vi_dcc_enabled(tex, 0)) {