From: Jesse Barnes <jbarnes@virtuousgeek.org>
To: Linus Torvalds <torvalds@linux-foundation.org>,
Dave Airlie <airlied@linux.ie>
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH] enable bus mastering on i915 at resume time
Date: Tue, 24 Jun 2008 10:38:31 -0700 [thread overview]
Message-ID: <200806241038.32123.jbarnes@virtuousgeek.org> (raw)
From: Jie Luo <clotho67@gmail.com>
On 9xx chips, bus mastering needs to be enabled at resume time for much of the
chip to function. With this patch, vblank interrupts will work as expected
on resume, along with other chip functions. Fixes kernel bugzilla #10844.
Signed-off-by: Jie Luo <clotho67@gmail.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
--- drivers/char/drm/i915_drv.c 2008-06-20 15:35:50.000000000 +0800
+++ drivers/char/drm/i915_drv.c.new 2008-06-20 15:35:35.000000000 +0800
@@ -385,6 +385,7 @@ static int i915_resume(struct drm_device
pci_restore_state(dev->pdev);
if (pci_enable_device(dev->pdev))
return -1;
+ pci_set_master(dev->pdev);
pci_write_config_byte(dev->pdev, LBB, dev_priv->saveLBB);
reply other threads:[~2008-06-24 17:38 UTC|newest]
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