50 lines
1.8 KiB
Diff
50 lines
1.8 KiB
Diff
From 48fcfc888b48ad49dd83faa107264bbfb0089cad Mon Sep 17 00:00:00 2001
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From: Kyle McMartin <kyle@redhat.com>
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Date: Wed, 3 Nov 2010 16:27:57 -0400
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Subject: [PATCH] i915: reprogram power monitoring registers on resume
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Fixes issue where i915_gfx_val was reporting values several
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orders of magnitude higher than physically possible (without
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leaving scorch marks on my thighs at least.)
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Signed-off-by: Kyle McMartin <kyle@redhat.com>
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Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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Cc: stable@kernel.org
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Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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---
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drivers/gpu/drm/i915/i915_suspend.c | 4 +++-
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drivers/gpu/drm/i915/intel_drv.h | 1 +
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2 files changed, 4 insertions(+), 1 deletions(-)
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diff --git a/drivers/gpu/drm/i915/i915_suspend.c b/drivers/gpu/drm/i915/i915_suspend.c
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index 989c19d..454c064 100644
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--- a/drivers/gpu/drm/i915/i915_suspend.c
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+++ b/drivers/gpu/drm/i915/i915_suspend.c
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@@ -862,8 +862,10 @@ int i915_restore_state(struct drm_device *dev)
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/* Clock gating state */
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intel_init_clock_gating(dev);
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- if (HAS_PCH_SPLIT(dev))
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+ if (HAS_PCH_SPLIT(dev)) {
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ironlake_enable_drps(dev);
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+ intel_init_emon(dev);
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+ }
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/* Cache mode state */
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I915_WRITE (CACHE_MODE_0, dev_priv->saveCACHE_MODE_0 | 0xffff0000);
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diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
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index 9af9f86..21551fe 100644
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--- a/drivers/gpu/drm/i915/intel_drv.h
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+++ b/drivers/gpu/drm/i915/intel_drv.h
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@@ -296,6 +296,7 @@ extern void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
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extern void intel_init_clock_gating(struct drm_device *dev);
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extern void ironlake_enable_drps(struct drm_device *dev);
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extern void ironlake_disable_drps(struct drm_device *dev);
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+extern void intel_init_emon(struct drm_device *dev);
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extern int intel_pin_and_fence_fb_obj(struct drm_device *dev,
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struct drm_gem_object *obj,
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--
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1.7.3.2
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