diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2015-06-28 14:18:16 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-08-03 09:29:59 -0700 |
| commit | 79494ffe93cadb66e6c88d7e67d5eff3699fb266 (patch) | |
| tree | ee47f97610fa6d37929fb97aac8728cb6e7f785e | |
| parent | db51d9652aad3415ca51c44c2b79c88ba78785f5 (diff) | |
agp/intel: Fix typo in needs_ilk_vtd_wa()
commit 8b572a4200828b4e75cc22ed2f494b58d5372d65 upstream.
In needs_ilk_vtd_wa(), we pass in the GPU device but compared it against
the ids for the mobile GPU and the mobile host bridge. That latter is
impossible and so likely was just a typo for the desktop GPU device id
(which is also buggy).
Fixes commit da88a5f7f7d434e2cde1b3e19d952e6d84533662
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Wed Feb 13 09:31:53 2013 +0000
drm/i915: Disable WC PTE updates to w/a buggy IOMMU on ILK
Reported-by: Ting-Wei Lan <lantw44@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=91127
References: https://bugzilla.freedesktop.org/show_bug.cgi?id=60391
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/char/agp/intel-gtt.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c index 5c85350f4c3d..19e301f9d549 100644 --- a/drivers/char/agp/intel-gtt.c +++ b/drivers/char/agp/intel-gtt.c @@ -586,7 +586,7 @@ static inline int needs_ilk_vtd_wa(void) /* Query intel_iommu to see if we need the workaround. Presumably that * was loaded first. */ - if ((gpu_devid == PCI_DEVICE_ID_INTEL_IRONLAKE_M_HB || + if ((gpu_devid == PCI_DEVICE_ID_INTEL_IRONLAKE_D_IG || gpu_devid == PCI_DEVICE_ID_INTEL_IRONLAKE_M_IG) && intel_iommu_gfx_mapped) return 1; |