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drm/i915: Add Wa_1209644611:icl,ehl

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On gen11 the XY_FAST_COPY_BLT command has some size restrictions on its
usage.  Although this instruction is mainly used by userspace, i915 also
uses it to copy object contents during some selftests, so let's ensure
the restrictions are followed.

Bspec: 6544
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200311162300.1838847-3-matthew.d.roper@intel.com
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
This commit is contained in:
Matt Roper 2020-03-11 09:22:56 -07:00
parent 415d126997
commit aa64f8e1cf
1 changed files with 13 additions and 1 deletions
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14
drivers/gpu/drm/i915/gem/i915_gem_object_blt.c
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@ -196,6 +196,17 @@ out_unpin:
return err;
}
/* Wa_1209644611:icl,ehl */
static bool wa_1209644611_applies(struct drm_i915_private *i915, u32 size)
{
u32 height = size >> PAGE_SHIFT;
if (!IS_GEN(i915, 11))
return false;
return height % 4 == 3 && height <= 8;
}
struct i915_vma *intel_emit_vma_copy_blt(struct intel_context *ce,
struct i915_vma *src,
struct i915_vma *dst)
@ -237,7 +248,8 @@ struct i915_vma *intel_emit_vma_copy_blt(struct intel_context *ce,
size = min_t(u64, rem, block_size);
GEM_BUG_ON(size >> PAGE_SHIFT > S16_MAX);
if (INTEL_GEN(i915) >= 9) {
if (INTEL_GEN(i915) >= 9 &&
!wa_1209644611_applies(i915, size)) {
*cmd++ = GEN9_XY_FAST_COPY_BLT_CMD | (10 - 2);
*cmd++ = BLT_DEPTH_32 | PAGE_SIZE;
*cmd++ = 0;