Messages in this thread Patch in this message | | | From | lizf@kernel ... | Subject | [PATCH 3.4 49/65] agp/intel: Fix typo in needs_ilk_vtd_wa() | Date | Tue, 20 Oct 2015 08:47:59 +0800 |
| |
From: Chris Wilson <chris@chris-wilson.co.uk>
3.4.110-rc1 review patch. If anyone has any objections, please let me know.
------------------
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: Zefan Li <lizefan@huawei.com> --- drivers/char/agp/intel-gtt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c index 7f025fb..4e985cd 100644 --- a/drivers/char/agp/intel-gtt.c +++ b/drivers/char/agp/intel-gtt.c @@ -1194,7 +1194,7 @@ static inline int needs_idle_maps(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; -- 1.9.1
| |