diff options
| author | Eric Anholt <eric@anholt.net> | 2010-12-14 10:06:46 -0800 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2010-12-23 09:49:40 +0000 |
| commit | 06f37751af77192b424b2b0ff17dc08de65faba0 (patch) | |
| tree | ea36b207eb08ca8119052e977eddcc8fb9e939c7 /drivers | |
| parent | e819eb8687767cefca7b6abf5ac6d5efcf581eeb (diff) | |
| download | lwn-06f37751af77192b424b2b0ff17dc08de65faba0.tar.gz lwn-06f37751af77192b424b2b0ff17dc08de65faba0.zip | |
drm/i915: Set the required VFMUNIT clock gating disable on Ironlake.
It's required by the specs, but we don't know why. Let's not find out
why.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 2 |
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 878fc766a12c..8470a972f1bb 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -2471,6 +2471,9 @@ # define MARIUNIT_CLOCK_GATE_DISABLE (1 << 18) # define SVSMUNIT_CLOCK_GATE_DISABLE (1 << 1) +#define PCH_3DCGDIS1 0x46024 +# define VFMUNIT_CLOCK_GATE_DISABLE (1 << 11) + #define FDI_PLL_FREQ_CTL 0x46030 #define FDI_PLL_FREQ_CHANGE_REQUEST (1<<24) #define FDI_PLL_FREQ_LOCK_LIMIT_MASK 0xfff00 diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index d9b7092439ef..97e374ec7f72 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -5825,6 +5825,8 @@ void intel_init_clock_gating(struct drm_device *dev) I915_WRITE(PCH_3DCGDIS0, MARIUNIT_CLOCK_GATE_DISABLE | SVSMUNIT_CLOCK_GATE_DISABLE); + I915_WRITE(PCH_3DCGDIS1, + VFMUNIT_CLOCK_GATE_DISABLE); } I915_WRITE(PCH_DSPCLK_GATE_D, dspclk_gate); |