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tests/gem_stress: Fix rendercopy vs. keep_gpu_busy on gen6+

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If the hardware has a blt ring blits aren't allowed on the render ring.
Trying to execute blits on the render ring results in a GPU hang.

Flush outstanding blits from keep_gpu_busy() before calling rendercopy()
so that they don't end up on the render ring.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
This commit is contained in:
Ville Syrjälä 2014-04-28 17:58:45 +03:00
parent 6abfe2f0db
commit fa86e33ccc
1 changed files with 7 additions and 2 deletions
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9
tests/gem_stress.c
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@ -346,11 +346,16 @@ static void render_copyfunc(struct igt_buf *src, unsigned src_x, unsigned src_y,
if (keep_gpu_busy_counter & 1)
keep_gpu_busy();
if (rendercopy)
if (rendercopy) {
/*
* Flush outstanding blts so that they don't end up on
* the render ring when that's not allowed (gen6+).
*/
intel_batchbuffer_flush(batch);
rendercopy(batch, NULL, src, src_x, src_y,
options.tile_size, options.tile_size,
dst, dst_x, dst_y);
else
} else
blitter_copyfunc(src, src_x, src_y,
dst, dst_x, dst_y,
logical_tile_no);