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drm/i915: Add ECOBITS_SNB_BIT 

GAC_ECO_BITS has a bit similar to GAM_ECOCHK's ECOCHK_SNB_BIT. Add
the define, and enable it on SNB.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ville Syrjälä 2013-04-04 15:13:40 +03:00 committed by Daniel Vetter
parent 10e0849794
commit 3b9d7888df
2 changed files with 3 additions and 1 deletions
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3
drivers/gpu/drm/i915/i915_gem_gtt.c
View File

@ -106,7 +106,8 @@ static int gen6_ppgtt_enable(struct drm_device *dev)
uint32_t ecochk, gab_ctl, ecobits;
ecobits = I915_READ(GAC_ECO_BITS);
I915_WRITE(GAC_ECO_BITS, ecobits | ECOBITS_PPGTT_CACHE64B);
I915_WRITE(GAC_ECO_BITS, ecobits | ECOBITS_SNB_BIT |
ECOBITS_PPGTT_CACHE64B);
gab_ctl = I915_READ(GAB_CTL);
I915_WRITE(GAB_CTL, gab_ctl | GAB_CTL_CONT_AFTER_PAGEFAULT);

1
drivers/gpu/drm/i915/i915_reg.h
View File

@ -127,6 +127,7 @@
#define ECOCHK_PPGTT_CACHE4B (0x0<<3)
#define GAC_ECO_BITS 0x14090
#define ECOBITS_SNB_BIT (1<<13)
#define ECOBITS_PPGTT_CACHE64B (3<<8)
#define ECOBITS_PPGTT_CACHE4B (0<<8)