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authorKenneth Graunke <[email protected]>2014-04-21 14:08:49 -0700
committerKenneth Graunke <[email protected]>2014-04-22 10:57:11 -0700
commit34a68345e228b7cbc1bc6909704a89c08bf5368e (patch)
treefe1ef1ed05b1df0a6d7e187dd3d4d9400a26bf03 /install-lib-links.mk
parentfe49949392f9cf80e78b4e679d79e40c4da71ded (diff)
i965: Make Broadwell HiZ path arrange for TC flushes.
HiZ operations make the depth/render caches out of sync with the sampler caches. We need to arrange for a TC flush to happen before the target buffer is used by the sampler. Calling brw_render_cache_set_add_bo makes that happen. On previous generations, brw_blorp_exec took care of flushing the texture cache by calling intel_batchbuffer_emit_mi_flush after doing any rendering. If we were to use the normal drawing path, then brw_postdraw_set_buffers_need_resolve would handle this. On Broadwell, we don't use BLORP, and we don't emit a rectangle primitive via the normal drawing path. The 3DSTATE_WM_HZ_OP and PIPE_CONTROL implicitly make drawing happen. So, none of our existing code makes this flush happen - we need to do it directly. Fixes 11 Piglit copyteximage subtests. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=77223 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=77226 Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Eric Anholt <[email protected]>
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