diff options
| author | Simon Rettberg <[email protected]> | 2021-04-26 16:11:24 +0200 |
|---|---|---|
| committer | Jani Nikula <[email protected]> | 2021-05-19 10:10:28 +0300 |
| commit | 023dfa9602f561952c0e19d74f66614a56d7e57a (patch) | |
| tree | 94322e93a1fad8e1d815aeb9840fdc142b3912a2 | |
| parent | 036867e93ebf4d7e70eba6a8c72db74ee3760bc3 (diff) | |
drm/i915/gt: Disable HiZ Raw Stall Optimization on broken gen7
When resetting CACHE_MODE registers, don't enable HiZ Raw Stall
Optimization on Ivybridge GT1 and Baytrail, as it causes severe glitches
when rendering any kind of 3D accelerated content.
This optimization is disabled on these platforms by default according to
official documentation from 01.org.
Fixes: ef99a60ffd9b ("drm/i915/gt: Clear CACHE_MODE prior to clearing residuals")
BugLink: https://gitlab.freedesktop.org/drm/intel/-/issues/3081
BugLink: https://gitlab.freedesktop.org/drm/intel/-/issues/3404
BugLink: https://gitlab.freedesktop.org/drm/intel/-/issues/3071
Reviewed-by: Manuel Bentele <[email protected]>
Signed-off-by: Simon Rettberg <[email protected]>
Reviewed-by: Dave Airlie <[email protected]>
Signed-off-by: Rodrigo Vivi <[email protected]>
[Rodrigo removed invalid Fixes line]
Link: https://patchwork.freedesktop.org/patch/msgid/20210426161124.2b7fd708@dellnichtsogutkiste
(cherry picked from commit 929b734ad34b717d6a1b8de97f53bb5616040147)
Signed-off-by: Jani Nikula <[email protected]>
| -rw-r--r-- | drivers/gpu/drm/i915/gt/gen7_renderclear.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/gt/gen7_renderclear.c b/drivers/gpu/drm/i915/gt/gen7_renderclear.c index de575fdb033f..21f08e53889c 100644 --- a/drivers/gpu/drm/i915/gt/gen7_renderclear.c +++ b/drivers/gpu/drm/i915/gt/gen7_renderclear.c @@ -397,7 +397,10 @@ static void emit_batch(struct i915_vma * const vma, gen7_emit_pipeline_invalidate(&cmds); batch_add(&cmds, MI_LOAD_REGISTER_IMM(2)); batch_add(&cmds, i915_mmio_reg_offset(CACHE_MODE_0_GEN7)); - batch_add(&cmds, 0xffff0000); + batch_add(&cmds, 0xffff0000 | + ((IS_IVB_GT1(i915) || IS_VALLEYVIEW(i915)) ? + HIZ_RAW_STALL_OPT_DISABLE : + 0)); batch_add(&cmds, i915_mmio_reg_offset(CACHE_MODE_1)); batch_add(&cmds, 0xffff0000 | PIXEL_SUBSPAN_COLLECT_OPT_DISABLE); gen7_emit_pipeline_invalidate(&cmds); |