[PATCH 5/5] drm/i915: document a few more already implemented ilk w/as

Daniel Vetter
2012-10-18T09:32:08Z

Found while strolling docs.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
drivers/gpu/drm/i915/intel_pm.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index aa77639..45ffb2c 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3342,6 +3342,7 @@ static void ironlake_init_clock_gating(struct drm_device *dev)
/* Required for CxSR */
dspclk_gate |= DPARBUNIT_CLOCK_GATE_DISABLE;

+ /* WaDisableSVSMUnitClockGating */
I915_WRITE(PCH_3DCGDIS0,
MARIUNIT_CLOCK_GATE_DISABLE |
SVSMUNIT_CLOCK_GATE_DISABLE);
@@ -3353,7 +3354,7 @@ static void ironlake_init_clock_gating(struct drm_device *dev)
/*
* According to the spec the following bits should be set in
* order to enable memory self-refresh
- * The bit 22/21 of 0x42004
+ * The bit 22/21 of 0x42004 (WaDisableDisplayFetchStrideStreching)
* The bit 5 of 0x42020
* The bit 15 of 0x45000
*/
--
1.7.10.4