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panfrost: Setup HW tile buffer clear in dedicated func

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Signed-off-by: Loïc Molinari <loic.molinari@collabora.com>
Reviewed-by: Ashley Smith <ashley.smith@collabora.com>
Acked-by: Boris Brezillon <boris.brezillon@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40124>
This commit is contained in:
Loïc Molinari 2026-03-25 18:30:27 +01:00 • committed by Marge Bot
parent 29d19a6119
commit acc24dd7e1
1 changed files with 22 additions and 14 deletions
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36
src/gallium/drivers/panfrost/pan_blitter.c
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@ -188,6 +188,26 @@ panfrost_blitter_blit(struct pipe_context *pipe,
panfrost_flush_all_batches(ctx, "Blit");
}
/* Setup HW tile buffer clears if the batch for the current FBO doesn't have
* any draw calls queued. Must be called after render condition check (which
* can submit the batch).
*/
static bool
panfrost_blitter_try_batch_clear(struct panfrost_context *ctx,
unsigned buffers,
const union pipe_color_union *color,
double depth, unsigned stencil)
{
struct panfrost_batch *batch = panfrost_get_batch_for_fbo(ctx);
if (batch && !batch->draw_count) {
panfrost_batch_clear(batch, buffers, color, depth, stencil);
return true;
}
return false;
}
void
panfrost_blitter_clear(struct pipe_context *pipe, unsigned buffers,
uint32_t color_clear_mask, uint8_t stencil_clear_mask,
@ -205,24 +225,12 @@ panfrost_blitter_clear(struct pipe_context *pipe, unsigned buffers,
if (!panfrost_render_condition_check(ctx))
return;
/* Only get batch after checking the render condition, since the check can
* cause the batch to be flushed.
*/
struct panfrost_batch *batch = panfrost_get_batch_for_fbo(ctx);
if (!batch)
if (panfrost_blitter_try_batch_clear(ctx, buffers, color, depth, stencil))
return;
/* At the start of the batch, we can clear for free */
if (batch->draw_count == 0) {
panfrost_batch_clear(batch, buffers, color, depth, stencil);
return;
}
/* Once there is content, clear with a fullscreen quad */
panfrost_blitter_save(ctx, states);
/* Framebuffer legalization is done at batch initialization. */
perf_debug(ctx, "Clearing with quad");
panfrost_blitter_save(ctx, states);
util_blitter_clear(
ctx->blitter, ctx->pipe_framebuffer.width, ctx->pipe_framebuffer.height,
util_framebuffer_get_num_layers(&ctx->pipe_framebuffer), buffers, color,