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git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
drm/i915/dg2: Add Wa_16011777198
Coarse power gating for render should not be enabled on some DG2
steppings.
Bspec: 52698
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Clint Taylor <Clinton.A.Taylor@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211116174818.2128062-4-matthew.d.roper@intel.com
+11
-4
+11
-4
drivers/gpu/drm/i915/gt/intel_rc6.c
+11
-4
drivers/gpu/drm/i915/gt/intel_rc6.c
···
117
117
GEN6_RC_CTL_RC6_ENABLE |
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GEN6_RC_CTL_EI_MODE(1);
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120
-
pg_enable =
121
-
GEN9_RENDER_PG_ENABLE |
122
-
GEN9_MEDIA_PG_ENABLE |
123
-
GEN11_MEDIA_SAMPLER_PG_ENABLE;
120
+
/* Wa_16011777198 - Render powergating must remain disabled */
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+
if (IS_DG2_GRAPHICS_STEP(gt->i915, G10, STEP_A0, STEP_C0) ||
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+
IS_DG2_GRAPHICS_STEP(gt->i915, G11, STEP_A0, STEP_B0))
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+
pg_enable =
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+
GEN9_MEDIA_PG_ENABLE |
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+
GEN11_MEDIA_SAMPLER_PG_ENABLE;
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+
else
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+
pg_enable =
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+
GEN9_RENDER_PG_ENABLE |
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+
GEN9_MEDIA_PG_ENABLE |
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+
GEN11_MEDIA_SAMPLER_PG_ENABLE;
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if (GRAPHICS_VER(gt->i915) >= 12) {
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for (i = 0; i < I915_MAX_VCS; i++)