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| author | Jordan Crouse <jcrouse@codeaurora.org> | 2018-01-22 11:10:46 -0700 |
|---|---|---|
| committer | Rob Clark <robdclark@gmail.com> | 2018-02-20 10:41:22 -0500 |
| commit | edf5ceac316a95539a0b063d60d03f3226046f10 (patch) | |
| tree | 5eb3a66029f08ac84fbb1b23930f8587ad6ed9f9 /drivers/gpu/drm/msm/msm_gem_vma.c | |
| parent | 9d20a0e6a8f4edf37d75f3bca41f99f52a440c22 (diff) | |
| download | linux-edf5ceac316a95539a0b063d60d03f3226046f10.tar.bz2 | |
drm/msm: Pass the correct aperture end to drm_mm_init
drm_mm_init() takes the start and length of the intended virtual
memory address region but the msm code is passing the end of
the region instead. That would work out if the region started
at 0 but it doesn't so the top of the region sneaks above the
32 bit boundary which won't work because the driver doesn't
support 64 bit addresses for the GPU yet.
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/msm/msm_gem_vma.c')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gem_vma.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/msm/msm_gem_vma.c b/drivers/gpu/drm/msm/msm_gem_vma.c index d34e331554f3..ffbec224551b 100644 --- a/drivers/gpu/drm/msm/msm_gem_vma.c +++ b/drivers/gpu/drm/msm/msm_gem_vma.c @@ -96,6 +96,8 @@ msm_gem_address_space_create(struct device *dev, struct iommu_domain *domain, const char *name) { struct msm_gem_address_space *aspace; + u64 size = domain->geometry.aperture_end - + domain->geometry.aperture_start; aspace = kzalloc(sizeof(*aspace), GFP_KERNEL); if (!aspace) @@ -106,7 +108,7 @@ msm_gem_address_space_create(struct device *dev, struct iommu_domain *domain, aspace->mmu = msm_iommu_new(dev, domain); drm_mm_init(&aspace->mm, (domain->geometry.aperture_start >> PAGE_SHIFT), - (domain->geometry.aperture_end >> PAGE_SHIFT) - 1); + size >> PAGE_SHIFT); kref_init(&aspace->kref); |