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panfrost: Compute and use polygon list body size 

This is a bit of a hack, but it gets the point across.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
This commit is contained in:
Alyssa Rosenzweig 2019-06-14 07:08:51 -07:00
parent b660953733
commit 953cc4b540
2 changed files with 20 additions and 1 deletions
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7
src/gallium/drivers/panfrost/pan_context.c
View File

@ -153,7 +153,6 @@ panfrost_emit_mfbd(struct panfrost_context *ctx)
/* See pan_tiler.c */
.tiler_polygon_list = ctx->misc_0.gpu,
.tiler_polygon_list_size = 0x0,
.width1 = MALI_POSITIVE(width),
.height1 = MALI_POSITIVE(height),
@ -176,9 +175,15 @@ panfrost_emit_mfbd(struct panfrost_context *ctx)
unsigned header_size = panfrost_tiler_header_size(
width, height, framebuffer.tiler_hierarchy_mask);
unsigned body_size = panfrost_tiler_body_size(
width, height, framebuffer.tiler_hierarchy_mask);
framebuffer.tiler_polygon_list_body =
framebuffer.tiler_polygon_list + header_size;
framebuffer.tiler_polygon_list_size =
header_size + body_size;
return framebuffer;
}

14
src/gallium/drivers/panfrost/pan_tiler.c
View File

@ -254,3 +254,17 @@ panfrost_tiler_header_size(unsigned width, unsigned height, uint8_t mask)
return panfrost_raw_header_size(width, height, masked_count);
}
/* The body seems to be about 512 bytes per tile. Noting that the header is
* about 8 bytes per tile, we can be a little sloppy and estimate the body size
* to be equal to the header size * (512/8). Given the header size is a
* considerable overestimate, this is fine. Eventually, we should maybe figure
* out how to actually implement this. */
unsigned
panfrost_tiler_body_size(unsigned width, unsigned height, uint8_t mask)
{
unsigned header_size = panfrost_tiler_header_size(width, height, mask);
return ALIGN_POT(header_size * 512 / 8, 512);
}