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drm/i915: Disable RC6 on Ironlake

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The automatic powersaving feature is once again causing havoc, with 100%
reliable hangs on boot and resume on affected machines.

Reported-by: Francesco Allertsen <fallertsen@gmail.com>
Reported-by: Gui Rui <chaos.proton@gmail.com>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=28582
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson
2011-02-09 16:15:32 +00:00
parent 72389a33b8
commit ac66808814
4 changed files with 57 additions and 46 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/gpu/drm/i915/i915_drv.c
+4 -1
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@@ -46,6 +46,9 @@ module_param_named(fbpercrtc, i915_fbpercrtc, int, 0400);
unsigned int i915_powersave = 1;
module_param_named(powersave, i915_powersave, int, 0600);
unsigned int i915_enable_rc6 = 0;
module_param_named(i915_enable_rc6, i915_enable_rc6, int, 0600);
unsigned int i915_lvds_downclock = 0;
module_param_named(lvds_downclock, i915_lvds_downclock, int, 0400);
@@ -360,7 +363,7 @@ static int i915_drm_thaw(struct drm_device *dev)
/* Resume the modeset for every activated CRTC */
drm_helper_resume_force_mode(dev);
if (dev_priv->renderctx && dev_priv->pwrctx)
if (IS_IRONLAKE_M(dev))
ironlake_enable_rc6(dev);
}