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| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2014-02-25 13:13:39 (GMT) |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-06-05 06:52:39 (GMT) |
| commit | 3299254ffc42082a0ae36ecb841ade1a98a2af92 (patch) | |
| tree | 6417b3fef76cf2b17c8644568713364f4d0304aa /drivers/gpu/drm/i915/i915_reg.h | |
| parent | 12fabbcb9f0935c283230217c7de6b26d3d5caac (diff) | |
| download | linux-3299254ffc42082a0ae36ecb841ade1a98a2af92.tar.xz | |
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/i915_reg.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 5122254..3427a7f 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -1179,7 +1179,7 @@ enum punit_power_well { #define I915_ERROR_INSTRUCTION (1<<0) #define INSTPM 0x020c0 #define INSTPM_SELF_EN (1<<12) /* 915GM only */ -#define INSTPM_AGPBUSY_DIS (1<<11) /* gen3: when disabled, pending interrupts +#define INSTPM_AGPBUSY_INT_EN (1<<11) /* gen3: when disabled, pending interrupts will not assert AGPBUSY# and will only be delivered when out of C3. */ #define INSTPM_FORCE_ORDERING (1<<7) /* GEN6+ */ |