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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2018-12-07 13:40:37 +0000 |
|---|---|---|
| committer | Joonas Lahtinen <joonas.lahtinen@linux.intel.com> | 2018-12-12 12:27:44 +0200 |
| commit | 5b2e31201c268c2331a209af799d667619216d40 (patch) | |
| tree | 70d0bc01378f2d15e9d7b31c205b5accdbebc655 /drivers/video | |
| parent | fe78742d7f84e3803b760cdbb1ddbdedfca9640b (diff) | |
drm/i915: Flush GPU relocs harder for gen3drm-intel-fixes-2018-12-12-1drm-intel-fixes-2018-12-12
Adding an extra MI_STORE_DWORD_IMM to the gpu relocation path for gen3
was good, but still not good enough. To survive 24+ hours under test we
needed to perform not one, not two but three extra store-dw. Doing so
for each GPU relocation was a little unsightly and since we need to
worry about userspace hitting the same issues, we should apply the dummy
store-dw into the EMIT_FLUSH.
Fixes: 7dd4f6729f92 ("drm/i915: Async GPU relocation processing")
References: 7fa28e146994 ("drm/i915: Write GPU relocs harder with gen3")
Testcase: igt/gem_tiled_fence_blits # blb/pnv
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181207134037.11848-1-chris@chris-wilson.co.uk
(cherry picked from commit a889580c087a9cf91fddb3832ece284174214183)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Diffstat (limited to 'drivers/video')
0 files changed, 0 insertions, 0 deletions