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path: root/drivers/gpu/drm/drm_vm.c
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Diffstat (limited to 'drivers/gpu/drm/drm_vm.c')
-rw-r--r--drivers/gpu/drm/drm_vm.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_vm.c b/drivers/gpu/drm/drm_vm.c
index c3b13fb41d0c..3778360eceea 100644
--- a/drivers/gpu/drm/drm_vm.c
+++ b/drivers/gpu/drm/drm_vm.c
@@ -61,7 +61,7 @@ static pgprot_t drm_io_prot(uint32_t map_type, struct vm_area_struct *vma)
tmp = pgprot_writecombine(tmp);
else
tmp = pgprot_noncached(tmp);
-#elif defined(__sparc__)
+#elif defined(__sparc__) || defined(__arm__)
tmp = pgprot_noncached(tmp);
#endif
return tmp;
@@ -601,6 +601,7 @@ int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma)
}
switch (map->type) {
+#if !defined(__arm__)
case _DRM_AGP:
if (drm_core_has_AGP(dev) && dev->agp->cant_use_aperture) {
/*
@@ -615,20 +616,31 @@ int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma)
break;
}
/* fall through to _DRM_FRAME_BUFFER... */
+#endif
case _DRM_FRAME_BUFFER:
case _DRM_REGISTERS:
offset = dev->driver->get_reg_ofs(dev);
vma->vm_flags |= VM_IO; /* not in core dump */
vma->vm_page_prot = drm_io_prot(map->type, vma);
+#if !defined(__arm__)
if (io_remap_pfn_range(vma, vma->vm_start,
(map->offset + offset) >> PAGE_SHIFT,
vma->vm_end - vma->vm_start,
vma->vm_page_prot))
return -EAGAIN;
+#else
+ if (remap_pfn_range(vma, vma->vm_start,
+ (map->offset + offset) >> PAGE_SHIFT,
+ vma->vm_end - vma->vm_start,
+ vma->vm_page_prot))
+ return -EAGAIN;
+#endif
+
DRM_DEBUG(" Type = %d; start = 0x%lx, end = 0x%lx,"
" offset = 0x%llx\n",
map->type,
vma->vm_start, vma->vm_end, (unsigned long long)(map->offset + offset));
+
vma->vm_ops = &drm_vm_ops;
break;
case _DRM_CONSISTENT: