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| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2014-02-25 15:13:39 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-06-05 08:52:39 +0200 |
| commit | 3299254ffc42082a0ae36ecb841ade1a98a2af92 (patch) | |
| tree | 6417b3fef76cf2b17c8644568713364f4d0304aa /drivers/gpu/drm/i915/intel_pm.c | |
| parent | 12fabbcb9f0935c283230217c7de6b26d3d5caac (diff) | |
| download | lwn-3299254ffc42082a0ae36ecb841ade1a98a2af92.tar.gz lwn-3299254ffc42082a0ae36ecb841ade1a98a2af92.zip | |
drm/i915: Flip the sense of AGPBUSY_DIS bit
My Gen3 Bspec lists the AGPBUSY# bit in INSTPM as an enable bit rather
than a disable bit. Our code has the opposite idea. Make the code match
the spec.
Might fix some gen3 C3 related interrupt delivery problems. Untested
due to lack of hardware.
v2: call it AGPBUSY_INT_EN to make it clearer it has to do with interrupts
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_pm.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 71de9eec3381..ab98dac3da73 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -5506,7 +5506,7 @@ static void gen3_init_clock_gating(struct drm_device *dev) I915_WRITE(ECOSKPD, _MASKED_BIT_DISABLE(ECO_FLIP_DONE)); /* interrupts should cause a wake up from C3 */ - I915_WRITE(INSTPM, _MASKED_BIT_DISABLE(INSTPM_AGPBUSY_DIS)); + I915_WRITE(INSTPM, _MASKED_BIT_ENABLE(INSTPM_AGPBUSY_INT_EN)); } static void i85x_init_clock_gating(struct drm_device *dev) |