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| author | Keith Packard <keithp@keithp.com> | 2011-10-28 10:28:00 -0700 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2011-11-08 10:50:27 +0000 |
| commit | a08185a3eb658854b29c05bcbfac0f85038ffe9f (patch) | |
| tree | 9411bc4cd2dc3dd5e4f29654b7b32669fe1434bb /drivers/char | |
| parent | 35b09c9bf619c4fc6040c52dcea6bd5bd6af7679 (diff) | |
| download | linux-stable-a08185a3eb658854b29c05bcbfac0f85038ffe9f.tar.gz linux-stable-a08185a3eb658854b29c05bcbfac0f85038ffe9f.tar.bz2 linux-stable-a08185a3eb658854b29c05bcbfac0f85038ffe9f.zip | |
agp: iommu_gfx_mapped only available if CONFIG_INTEL_IOMMU is set
Kernels with no iommu support cannot ever need the Ironlake
work-around, so never enable it in that case.
Might be better to completely remove the work-around from the kernel
in this case?
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/agp/intel-gtt.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c index 3a8d44886010..c92424ca1a55 100644 --- a/drivers/char/agp/intel-gtt.c +++ b/drivers/char/agp/intel-gtt.c @@ -1186,10 +1186,11 @@ static void gen6_cleanup(void) /* Certain Gen5 chipsets require require idling the GPU before * unmapping anything from the GTT when VT-d is enabled. */ -extern int intel_iommu_gfx_mapped; static inline int needs_idle_maps(void) { +#ifdef CONFIG_INTEL_IOMMU const unsigned short gpu_devid = intel_private.pcidev->device; + extern int intel_iommu_gfx_mapped; /* Query intel_iommu to see if we need the workaround. Presumably that * was loaded first. @@ -1198,7 +1199,7 @@ static inline int needs_idle_maps(void) gpu_devid == PCI_DEVICE_ID_INTEL_IRONLAKE_M_IG) && intel_iommu_gfx_mapped) return 1; - +#endif return 0; } |