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radeonsi: allow trivial DCC clears for shared textures with DCC constant encode

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This relaxes the existing restriction.

Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10003>
This commit is contained in:
Marek Olšák 2021-03-19 19:05:13 -04:00 • committed by Marge Bot
parent c00b314ae4
commit 059f042fb1
1 changed files with 18 additions and 8 deletions
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26
src/gallium/drivers/radeonsi/si_clear.c
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@ -481,14 +481,6 @@ static void si_do_fast_color_clear(struct si_context *sctx, unsigned *buffers,
continue;
}
/* shared textures can't use fast clear without an explicit flush,
* because there is no way to communicate the clear color among
* all clients
*/
if (tex->buffer.b.is_shared &&
!(tex->buffer.external_usage & PIPE_HANDLE_USAGE_EXPLICIT_FLUSH))
continue;
if (sctx->chip_class <= GFX8 && tex->surface.u.legacy.level[0].mode == RADEON_SURF_MODE_1D &&
!sctx->screen->info.htile_cmask_support_1d_tiling)
continue;
@ -531,6 +523,17 @@ static void si_do_fast_color_clear(struct si_context *sctx, unsigned *buffers,
&eliminate_needed))
continue;
/* Shared textures can't use fast clear without an explicit flush
* because the clear color is not exported.
*
* Chips without DCC constant encoding must set the clear color registers
* correctly even if the fast clear eliminate pass is not needed.
*/
if ((eliminate_needed || !sctx->screen->info.has_dcc_constant_encode) &&
tex->buffer.b.is_shared &&
!(tex->buffer.external_usage & PIPE_HANDLE_USAGE_EXPLICIT_FLUSH))
continue;
if (eliminate_needed && too_small)
continue;
@ -558,6 +561,13 @@ static void si_do_fast_color_clear(struct si_context *sctx, unsigned *buffers,
fmask_decompress_needed = true;
}
} else {
/* Shared textures can't use fast clear without an explicit flush
* because the clear color is not exported.
*/
if (tex->buffer.b.is_shared &&
!(tex->buffer.external_usage & PIPE_HANDLE_USAGE_EXPLICIT_FLUSH))
continue;
if (too_small)
continue;