Interrupt latency on some 945GM platforms

Commit Message

Jesse Barnes Sept. 21, 2010, 10:56 p.m. UTC

None

Patch

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_d
index 40cc5da..26e1d23 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -5786,6 +5786,10 @@  void intel_init_clock_gating(struct drm_device *dev)
                                   I915_READ(MCHBAR_RENDER_STANDBY) & ~RCX_SW_EX
                }
        }
+
+
+       /* Disable power management on 945GM */
+       I915_WRITE(0x10f10, 0);
 }
 
 /* Set up chip specific display functions */