commit 88f399cd0a5a540db2815eee3002f8f00ef6461e
author Dave Airlie <airlied@starflyer.(none)> Sat Aug 20 17:43:33 2005 +1000
committer Dave Airlie <airlied@linux.ie> Sat Aug 20 17:43:33 2005 +1000
tree ac5d9520a6272c589446e555a1295962e43cae75
parent ffbbf7a3ccdcac7526296a55968e5dac0626fd9e

drm: fixes for powerpc

Remove a bogus check on whether an area is memory (we need a better interface)
also change pgprot flags for powerpc
don't check on x86-64 either

From: Paul Mackerras <paulus@samba.org>
Signed-off-by: Dave Airlie <airlied@linux.ie>

drivers/char/drm/drm_bufs.c

diff --git a/drivers/char/drm/drm_bufs.c b/drivers/char/drm/drm_bufs.c
index b708020..e0743eb 100644
--- a/drivers/char/drm/drm_bufs.c
+++ b/drivers/char/drm/drm_bufs.c
@@ -152,7 +152,7 @@
 	switch ( map->type ) {
 	case _DRM_REGISTERS:
 	case _DRM_FRAME_BUFFER:
-#if !defined(__sparc__) && !defined(__alpha__) && !defined(__ia64__)
+#if !defined(__sparc__) && !defined(__alpha__) && !defined(__ia64__) && !defined(__powerpc64__) && !defined(__x86_64__)
 		if ( map->offset + map->size < map->offset ||
 		     map->offset < virt_to_phys(high_memory) ) {
 			drm_free( map, sizeof(*map), DRM_MEM_MAPS );
@@ -309,7 +309,7 @@
 	if (put_user(handle, &argp->handle))
 		return -EFAULT;
 	return 0;
-	}
+}
 
 
 /**

drivers/char/drm/drm_vm.c

diff --git a/drivers/char/drm/drm_vm.c b/drivers/char/drm/drm_vm.c
index 292fa71..ced4215 100644
--- a/drivers/char/drm/drm_vm.c
+++ b/drivers/char/drm/drm_vm.c
@@ -578,17 +578,17 @@
                 /* fall through to _DRM_FRAME_BUFFER... */        
 	case _DRM_FRAME_BUFFER:
 	case _DRM_REGISTERS:
-		if (map->offset >= __pa(high_memory)) {
 #if defined(__i386__) || defined(__x86_64__)
-			if (boot_cpu_data.x86 > 3 && map->type != _DRM_AGP) {
-				pgprot_val(vma->vm_page_prot) |= _PAGE_PCD;
-				pgprot_val(vma->vm_page_prot) &= ~_PAGE_PWT;
-			}
-#elif defined(__powerpc__)
-			pgprot_val(vma->vm_page_prot) |= _PAGE_NO_CACHE | _PAGE_GUARDED;
-#endif
-			vma->vm_flags |= VM_IO;	/* not in core dump */
+		if (boot_cpu_data.x86 > 3 && map->type != _DRM_AGP) {
+			pgprot_val(vma->vm_page_prot) |= _PAGE_PCD;
+			pgprot_val(vma->vm_page_prot) &= ~_PAGE_PWT;
 		}
+#elif defined(__powerpc__)
+		pgprot_val(vma->vm_page_prot) |= _PAGE_NO_CACHE;
+		if (map->type == _DRM_REGISTERS)
+			pgprot_val(vma->vm_page_prot) |= _PAGE_GUARDED;
+#endif
+		vma->vm_flags |= VM_IO;	/* not in core dump */
 #if defined(__ia64__)
 		if (efi_range_is_wc(vma->vm_start, vma->vm_end -
 				    vma->vm_start))