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| author | Zou Nan hai <nanhai.zou@intel.com> | 2010-06-25 13:40:22 +0800 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2010-08-09 14:13:39 -0700 |
| commit | ce17178094f368d9e3f39b2cb4303da5ed633dd4 (patch) | |
| tree | 81b0745ea43d217cea9527ed4f67f12de2ac1b52 | |
| parent | 8545423a912cf500009cbadfae57f706cf2b28e8 (diff) | |
| download | linux-ce17178094f368d9e3f39b2cb4303da5ed633dd4.tar.gz linux-ce17178094f368d9e3f39b2cb4303da5ed633dd4.tar.bz2 linux-ce17178094f368d9e3f39b2cb4303da5ed633dd4.zip | |
drm/i915: Enable RC6 on Ironlake.
RC6 allows the GPU to enter a lower power state when the GPU is idle.
Signed-off-by: Zou Nan hai <nanhai.zou@intel.com>
[anholt: Fixed the !renderctx error path to actually not enable RC6.]
Signed-off-by: Eric Anholt <eric@anholt.net>
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 4668e9bf67d8..149c18b7c375 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -5753,7 +5753,8 @@ void intel_init_clock_gating(struct drm_device *dev) ILK_DPFC_DIS2 | ILK_CLK_FBC); } - return; + if (IS_GEN6(dev)) + return; } else if (IS_G4X(dev)) { uint32_t dspclk_gate; I915_WRITE(RENCLK_GATE_D1, 0); @@ -5814,9 +5815,11 @@ void intel_init_clock_gating(struct drm_device *dev) OUT_RING(MI_FLUSH); ADVANCE_LP_RING(); } - } else + } else { DRM_DEBUG_KMS("Failed to allocate render context." - "Disable RC6\n"); + "Disable RC6\n"); + return; + } } if (I915_HAS_RC6(dev) && drm_core_check_feature(dev, DRIVER_MODESET)) { |