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panfrost: Drop blend indirection

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We don't need to ralloc/memcpy/free, we can emit all at once when we
have proper write ordering gaurantees.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6476>
This commit is contained in:
Alyssa Rosenzweig
2020-08-24 12:07:59 -04:00
committed by Marge Bot
parent 87e35102dd
commit 45c59db732
1 changed files with 5 additions and 15 deletions
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20
src/gallium/drivers/panfrost/pan_cmdstream.c
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@@ -719,7 +719,6 @@ panfrost_emit_frag_shader_meta(struct panfrost_batch *batch)
struct panfrost_device *dev = pan_device(ctx->base.screen);
unsigned rt_count = MAX2(ctx->pipe_framebuffer.nr_cbufs, 1);
void *rts = NULL;
struct panfrost_transfer xfer;
unsigned rt_size;
@@ -731,28 +730,19 @@ panfrost_emit_frag_shader_meta(struct panfrost_batch *batch)
rt_size = sizeof(struct midgard_blend_rt);
unsigned desc_size = MALI_STATE_LENGTH + rt_size * rt_count;
if (rt_size)
rts = rzalloc_size(ctx, rt_size * rt_count);
xfer = panfrost_pool_alloc_aligned(&batch->pool, desc_size, MALI_STATE_LENGTH);
struct panfrost_blend_final blend[PIPE_MAX_COLOR_BUFS];
for (unsigned c = 0; c < ctx->pipe_framebuffer.nr_cbufs; ++c)
blend[c] = panfrost_get_blend_for_context(ctx, c);
if (!(dev->quirks & MIDGARD_SFBD))
panfrost_emit_blend(batch, rts, blend);
else
batch->draws |= PIPE_CLEAR_COLOR0;
xfer = panfrost_pool_alloc_aligned(&batch->pool, desc_size, MALI_STATE_LENGTH);
panfrost_emit_frag_shader(ctx, (struct mali_state_packed *) xfer.cpu, blend);
memcpy(xfer.cpu + MALI_STATE_LENGTH, rts, rt_size * rt_count);
if (rt_size)
ralloc_free(rts);
if (!(dev->quirks & MIDGARD_SFBD))
panfrost_emit_blend(batch, xfer.cpu + MALI_STATE_LENGTH, blend);
else
batch->draws |= PIPE_CLEAR_COLOR0;
return xfer.gpu;
}