diff options
| author | Damien Lespiau <damien.lespiau@intel.com> | 2015-02-26 18:20:39 +0000 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-04-10 08:55:59 +0200 |
| commit | f9fc42f4bd9a6b9d63f8587325c7f53a6b788d8e (patch) | |
| tree | 5a411800f1314f69a804b010a6aba612bdd79ca2 /drivers/gpu | |
| parent | 669506e781d12939ad270b4c281189de119d1319 (diff) | |
drm/i915/skl: Implement WaDisableVFUnitClockGating
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 4 |
2 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 9966d3294a02..b01da4ebcebe 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -6102,6 +6102,7 @@ enum skl_disp_power_wells { # define GEN6_CSUNIT_CLOCK_GATE_DISABLE (1 << 7) #define GEN6_UCGCTL2 0x9404 +# define GEN6_VFUNIT_CLOCK_GATE_DISABLE (1 << 31) # define GEN7_VDSUNIT_CLOCK_GATE_DISABLE (1 << 30) # define GEN7_TDLUNIT_CLOCK_GATE_DISABLE (1 << 22) # define GEN6_RCZUNIT_CLOCK_GATE_DISABLE (1 << 13) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index d76d6ab3775f..67e1e61c50e7 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -75,6 +75,10 @@ static void skl_init_clock_gating(struct drm_device *dev) I915_WRITE(GEN8_UCGCTL6, I915_READ(GEN8_UCGCTL6) | GEN8_GAPSUNIT_CLOCK_GATE_DISABLE | GEN8_SDEUNIT_CLOCK_GATE_DISABLE); + + /* WaDisableVFUnitClockGating:skl */ + I915_WRITE(GEN6_UCGCTL2, I915_READ(GEN6_UCGCTL2) | + GEN6_VFUNIT_CLOCK_GATE_DISABLE); } if (INTEL_REVID(dev) <= SKL_REVID_D0) { |