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Subject[186/289] i915: reprogram power monitoring registers on resume
2.6.36-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Kyle McMartin <kyle@redhat.com>

commit 48fcfc888b48ad49dd83faa107264bbfb0089cad upstream.

Fixes issue where i915_gfx_val was reporting values several
orders of magnitude higher than physically possible (without
leaving scorch marks on my thighs at least.)

Signed-off-by: Kyle McMartin <kyle@redhat.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
drivers/gpu/drm/i915/i915_suspend.c | 4 +++-
drivers/gpu/drm/i915/intel_drv.h | 1 +
2 files changed, 4 insertions(+), 1 deletion(-)

--- a/drivers/gpu/drm/i915/i915_suspend.c
+++ b/drivers/gpu/drm/i915/i915_suspend.c
@@ -862,8 +862,10 @@ int i915_restore_state(struct drm_device
/* Clock gating state */
intel_init_clock_gating(dev);

- if (HAS_PCH_SPLIT(dev))
+ if (HAS_PCH_SPLIT(dev)) {
ironlake_enable_drps(dev);
+ intel_init_emon(dev);
+ }

/* Cache mode state */
I915_WRITE (CACHE_MODE_0, dev_priv->saveCACHE_MODE_0 | 0xffff0000);
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -250,6 +250,7 @@ extern void intel_crtc_fb_gamma_get(stru
extern void intel_init_clock_gating(struct drm_device *dev);
extern void ironlake_enable_drps(struct drm_device *dev);
extern void ironlake_disable_drps(struct drm_device *dev);
+extern void intel_init_emon(struct drm_device *dev);

extern int intel_pin_and_fence_fb_obj(struct drm_device *dev,
struct drm_gem_object *obj);



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