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From: Paulo Zanoni <przanoni@gmail.com>
To: intel-gfx@lists.freedesktop.org
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Subject: [PATCH 1/5] drm/i915: don't save/restore LBB on Gen5+
Date: Thu, 12 Sep 2013 13:58:17 -0300	[thread overview]
Message-ID: <1379005101-1500-1-git-send-email-przanoni@gmail.com> (raw)

From: Paulo Zanoni <paulo.r.zanoni@intel.com>

Because this PCI config register doesn't exist on Gen5+.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
---
 drivers/gpu/drm/i915/i915_suspend.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_suspend.c b/drivers/gpu/drm/i915/i915_suspend.c
index 70db618..3538370 100644
--- a/drivers/gpu/drm/i915/i915_suspend.c
+++ b/drivers/gpu/drm/i915/i915_suspend.c
@@ -340,7 +340,9 @@ int i915_save_state(struct drm_device *dev)
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int i;
 
-	pci_read_config_byte(dev->pdev, LBB, &dev_priv->regfile.saveLBB);
+	if (INTEL_INFO(dev)->gen <= 4)
+		pci_read_config_byte(dev->pdev, LBB,
+				     &dev_priv->regfile.saveLBB);
 
 	mutex_lock(&dev->struct_mutex);
 
@@ -390,7 +392,9 @@ int i915_restore_state(struct drm_device *dev)
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int i;
 
-	pci_write_config_byte(dev->pdev, LBB, dev_priv->regfile.saveLBB);
+	if (INTEL_INFO(dev)->gen <= 4)
+		pci_write_config_byte(dev->pdev, LBB,
+				      dev_priv->regfile.saveLBB);
 
 	mutex_lock(&dev->struct_mutex);
 
-- 
1.8.3.1

             reply	other threads:[~2013-09-12 16:58 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-09-12 16:58 Paulo Zanoni [this message]
2013-09-12 16:58 ` [PATCH 2/5] drm/i915: WARN if the DP aux read is too big Paulo Zanoni
2013-09-12 17:15   ` Chris Wilson
2013-09-12 21:03     ` [PATCH 2/5] drm/i915: fix intel_dp_aux_native_read's reply array size Paulo Zanoni
2013-09-13  9:21       ` Jani Nikula
2013-09-13 12:53         ` Damien Lespiau
2013-09-13 13:41           ` Jani Nikula
2013-09-13 13:50             ` Damien Lespiau
2013-09-16 19:26               ` Paulo Zanoni
2013-09-12 16:58 ` [PATCH 3/5] drm/i915: check for more ASLC interrupts Paulo Zanoni
2013-09-13 10:23   ` Jani Nikula
2013-09-12 16:58 ` [PATCH 4/5] drm/i915: clear opregon->lid_state after we unmap it Paulo Zanoni
2013-09-13 13:53   ` Rodrigo Vivi
2013-09-12 16:58 ` [PATCH 5/5] drm/i915: check for errors on i915_drm_thaw Paulo Zanoni
2013-09-12 17:10   ` Chris Wilson
2013-09-12 21:06     ` [PATCH 6/5] drm/i915: move more code to __i915_drm_thaw Paulo Zanoni
2013-09-12 21:44       ` Chris Wilson
2013-09-13  9:40         ` Daniel Vetter
2013-09-12 17:36 ` [PATCH 1/5] drm/i915: don't save/restore LBB on Gen5+ Ville Syrjälä
2013-09-13  9:41   ` Daniel Vetter

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