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| author | Mika Kuoppala <mika.kuoppala@linux.intel.com> | 2020-02-07 17:51:38 +0200 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2020-02-07 20:51:20 +0000 |
| commit | 0db1a5f8706a8cfb905b9cf3607c2ad626e7bff1 (patch) | |
| tree | 0fcc2e89afd5c1abc257d6025df71f20624ef6a7 /drivers/gpu/drm/i915/i915_reg.h | |
| parent | 561db8296d8b88ac21e76f99ba95f8de2c830359 (diff) | |
| download | linux-0db1a5f8706a8cfb905b9cf3607c2ad626e7bff1.tar.bz2 | |
drm/i915: Implement Wa_1607090982
SIMD16 with Src0 scalar might conflict between Src1/Src2 and cause
GRF read issue. Workaround this issue by setting bit 14 in 0xe4f4
which will disable early read/src swap of Src0.
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20200207155138.30978-2-mika.kuoppala@linux.intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_reg.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index b62029a10ed6..590eff9f03d5 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -9148,6 +9148,8 @@ enum { #define DISABLE_EARLY_EOT (1 << 1) #define GEN7_ROW_CHICKEN2 _MMIO(0xe4f4) +#define GEN12_DISABLE_EARLY_READ BIT(14) + #define GEN7_ROW_CHICKEN2_GT2 _MMIO(0xf4f4) #define DOP_CLOCK_GATING_DISABLE (1 << 0) #define PUSH_CONSTANT_DEREF_DISABLE (1 << 8) |