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radeonsi: don't sync before clear_buffer and copy_buffer if the buffer is idle

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Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13400>
This commit is contained in:
Marek Olšák 2021-10-17 12:23:17 -04:00 • committed by Marge Bot
parent d4cf4b3cee
commit 0d2dc06761
1 changed files with 15 additions and 0 deletions
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15
src/gallium/drivers/radeonsi/si_compute_blit.c
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@ -59,12 +59,27 @@ unsigned si_get_flush_flags(struct si_context *sctx, enum si_coherency coher,
}
}
static bool si_is_buffer_idle(struct si_context *sctx, struct si_resource *buf,
enum radeon_bo_usage usage)
{
return !si_cs_is_buffer_referenced(sctx, buf->buf, usage) &&
sctx->ws->buffer_wait(sctx->ws, buf->buf, 0, usage);
}
static void si_improve_sync_flags(struct si_context *sctx, struct pipe_resource *dst,
struct pipe_resource *src, unsigned *flags)
{
if (dst->target != PIPE_BUFFER || (src && src->target != PIPE_BUFFER))
return;
if (si_is_buffer_idle(sctx, si_resource(dst), RADEON_USAGE_READWRITE) &&
(!src || si_is_buffer_idle(sctx, si_resource(src), RADEON_USAGE_WRITE))) {
/* Idle buffers don't have to sync. */
*flags &= ~(SI_OP_SYNC_GE_BEFORE | SI_OP_SYNC_PS_BEFORE | SI_OP_SYNC_CS_BEFORE |
SI_OP_SYNC_CPDMA_BEFORE);
return;
}
const unsigned cs_mask = SI_BIND_CONSTANT_BUFFER(PIPE_SHADER_COMPUTE) |
SI_BIND_SHADER_BUFFER(PIPE_SHADER_COMPUTE) |
SI_BIND_IMAGE_BUFFER(PIPE_SHADER_COMPUTE) |