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Make sure CMA (Can't map aperture) pages are mapped uncached.

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(Should really make this write-combined using PATs, at some point).
This commit is contained in:
Thomas Hellstrom 2007-03-29 21:33:41 +02:00
parent 5395a92d40
commit 72d457fc19
2 changed files with 8 additions and 4 deletions
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8
linux-core/drm_compat.c
View file

@ -275,12 +275,14 @@ static struct page *drm_bo_vm_fault(struct vm_area_struct *vma,
goto out_unlock;
}
pfn = page_to_pfn(page);
vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
vma->vm_page_prot = (bo->mem.flags & DRM_BO_FLAG_CACHED) ?
vm_get_page_prot(vma->vm_flags) :
drm_io_prot(_DRM_TTM, vma);
}
err = vm_insert_pfn(vma, address, pfn);
if (!err || err == -EBUSY)
if (!err || err == -EBUSY)
data->type = VM_FAULT_MINOR;
else
data->type = VM_FAULT_OOM;

4
linux-core/drm_vm.c
View file

@ -796,7 +796,9 @@ static unsigned long drm_bo_vm_nopfn(struct vm_area_struct *vma,
goto out_unlock;
}
pfn = page_to_pfn(page);
vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
vma->vm_page_prot = (bo->mem.flags & DRM_BO_FLAG_CACHED) ?
vm_get_page_prot(vma->vm_flags) :
drm_io_prot(_DRM_TTM, vma);
}
err = vm_insert_pfn(vma, address, pfn);