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drm/msm: remove unnecessary mmap logic for cached BOs

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No one knows what this is for anymore, so just remove it.

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Acked-by: Jordan Crouse <jordan@cosmicpenguin.net>
Link: https://lore.kernel.org/r/20210423190833.25319-2-jonathan@marek.ca
Signed-off-by: Rob Clark <robdclark@chromium.org>
This commit is contained in:
Jonathan Marek 2021-04-23 15:08:17 -04:00 committed by Rob Clark
parent d91940e289
commit 8eaf9b02ac
1 changed files with 3 additions and 12 deletions
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15
drivers/gpu/drm/msm/msm_gem.c
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@ -219,21 +219,12 @@ int msm_gem_mmap_obj(struct drm_gem_object *obj,
vma->vm_flags &= ~VM_PFNMAP;
vma->vm_flags |= VM_MIXEDMAP;
if (msm_obj->flags & MSM_BO_WC) {
if (msm_obj->flags & MSM_BO_WC)
vma->vm_page_prot = pgprot_writecombine(vm_get_page_prot(vma->vm_flags));
} else if (msm_obj->flags & MSM_BO_UNCACHED) {
else if (msm_obj->flags & MSM_BO_UNCACHED)
vma->vm_page_prot = pgprot_noncached(vm_get_page_prot(vma->vm_flags));
} else {
/*
* Shunt off cached objs to shmem file so they have their own
* address_space (so unmap_mapping_range does what we want,
* in particular in the case of mmap'd dmabufs)
*/
vma->vm_pgoff = 0;
vma_set_file(vma, obj->filp);
else
vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
}
return 0;
}