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drm/i915/gen9: WA ST Unit Power Optimization Disable

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WaDisableSTUnitPowerOptimization:skl,bxt

Signed-off-by: Robert Beckett <robert.beckett@intel.com>
Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Reviewed-by: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Robert Beckett 2015-09-08 10:31:52 +01:00 committed by Daniel Vetter
parent d7884d69a5
commit 6b6d562675
2 changed files with 6 additions and 0 deletions
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3
drivers/gpu/drm/i915/i915_reg.h
View file

@ -6943,6 +6943,9 @@ enum skl_disp_power_wells {
#define HSW_ROW_CHICKEN3 0xe49c
#define HSW_ROW_CHICKEN3_L3_GLOBAL_ATOMICS_DISABLE (1 << 6)
#define HALF_SLICE_CHICKEN2 0xe180
#define GEN8_ST_PO_DISABLE (1<<13)
#define HALF_SLICE_CHICKEN3 0xe184
#define HSW_SAMPLE_C_PERFORMANCE (1<<9)
#define GEN8_CENTROID_PIXEL_OPT_DIS (1<<8)

3
drivers/gpu/drm/i915/intel_ringbuffer.c
View file

@ -990,6 +990,9 @@ static int gen9_init_workarounds(struct intel_engine_cs *ring)
GEN8_SAMPLER_POWER_BYPASS_DIS);
}
/* WaDisableSTUnitPowerOptimization:skl,bxt */
WA_SET_BIT_MASKED(HALF_SLICE_CHICKEN2, GEN8_ST_PO_DISABLE);
return 0;
}