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drm/i915: Implement WaDisableSDEUnitClockGating:bdw 

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ville Syrjälä 2014-02-27 21:59:02 +02:00 committed by Daniel Vetter
parent 295e8bb73a
commit 4f1ca9e940
2 changed files with 7 additions and 0 deletions
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3
drivers/gpu/drm/i915/i915_reg.h
View File

@ -4906,6 +4906,9 @@
#define GEN7_UCGCTL4 0x940c
#define GEN7_L3BANK2X_CLOCK_GATE_DISABLE (1<<25)
#define GEN8_UCGCTL6 0x9430
#define GEN8_SDEUNIT_CLOCK_GATE_DISABLE (1<<14)
#define GEN6_RPNSWREQ 0xA008
#define GEN6_TURBO_DISABLE (1<<31)
#define GEN6_FREQUENCY(x) ((x)<<25)

4
drivers/gpu/drm/i915/intel_pm.c
View File

@ -4870,6 +4870,10 @@ static void gen8_init_clock_gating(struct drm_device *dev)
I915_WRITE(GEN6_RC_SLEEP_PSMI_CONTROL,
_MASKED_BIT_ENABLE(GEN8_RC_SEMA_IDLE_MSG_DISABLE));
/* WaDisableSDEUnitClockGating:bdw */
I915_WRITE(GEN8_UCGCTL6, I915_READ(GEN8_UCGCTL6) |
GEN8_SDEUNIT_CLOCK_GATE_DISABLE);
}
static void haswell_init_clock_gating(struct drm_device *dev)