diff options
| author |   Matthew Auld <matthew.auld@intel.com> | 2021-10-28 10:26:38 +0100 |
|---|---|---|
| committer | Matthew Auld <matthew.auld@intel.com> | 2021-10-29 09:03:42 +0100 |
| commit | b0cc4dca4f1066f385a92baf6214d7f313353d76 (patch) | |
| tree | 09a50173a9a28a75f5baaf48a6a7b3c086d3e1c0 /drivers/gpu/drm | |
| parent | drm/i915/gtt: flush the scratch page (diff) | |
| download | linux-dev-b0cc4dca4f1066f385a92baf6214d7f313353d76.tar.xz linux-dev-b0cc4dca4f1066f385a92baf6214d7f313353d76.zip | |
drm/i915/gtt: stop caching the scratch page
Normal users shouldn't be hitting this, likely this would indicate a
userspace bug. So don't bother caching, which should be safe now that we
manually flush the page.
Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ramalingam C <ramalingam.c@intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211028092638.3142258-2-matthew.auld@intel.com
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/gen8_ppgtt.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/gt/gen8_ppgtt.c b/drivers/gpu/drm/i915/gt/gen8_ppgtt.c index 8af2f709571c..9966e9dc5218 100644 --- a/drivers/gpu/drm/i915/gt/gen8_ppgtt.c +++ b/drivers/gpu/drm/i915/gt/gen8_ppgtt.c @@ -651,7 +651,7 @@ static int gen8_init_scratch(struct i915_address_space *vm) vm->scratch[0]->encode = gen8_pte_encode(px_dma(vm->scratch[0]), - I915_CACHE_LLC, pte_flags); + I915_CACHE_NONE, pte_flags); for (i = 1; i <= vm->top; i++) { struct drm_i915_gem_object *obj; @@ -667,7 +667,7 @@ static int gen8_init_scratch(struct i915_address_space *vm) } fill_px(obj, vm->scratch[i - 1]->encode); - obj->encode = gen8_pde_encode(px_dma(obj), I915_CACHE_LLC); + obj->encode = gen8_pde_encode(px_dma(obj), I915_CACHE_NONE); vm->scratch[i] = obj; } |