#include <linux/agp_backend.h>
#include <linux/mmzone.h>
#include <asm/page.h> /* PAGE_SIZE */
+#include <asm/e820.h>
#include <asm/k8.h>
#include "agp.h"
}
-static struct aper_size_info_32 amd_8151_sizes[7] =
+static const struct aper_size_info_32 amd_8151_sizes[7] =
{
{2048, 524288, 9, 0x00000000 }, /* 0 0 0 0 0 0 */
{1024, 262144, 8, 0x00000400 }, /* 1 0 0 0 0 0 */
}
-static struct agp_bridge_driver amd_8151_driver = {
+static const struct agp_bridge_driver amd_8151_driver = {
.owner = THIS_MODULE,
.aperture_sizes = amd_8151_sizes,
.size_type = U32_APER_SIZE,
/* Some basic sanity checks for the aperture. */
static int __devinit aperture_valid(u64 aper, u32 size)
{
- u32 pfn, c;
if (aper == 0) {
printk(KERN_ERR PFX "No aperture\n");
return 0;
printk(KERN_ERR PFX "Aperture out of bounds\n");
return 0;
}
- pfn = aper >> PAGE_SHIFT;
- for (c = 0; c < size/PAGE_SIZE; c++) {
- if (!pfn_valid(pfn + c))
- break;
- if (!PageReserved(pfn_to_page(pfn + c))) {
- printk(KERN_ERR PFX "Aperture pointing to RAM\n");
- return 0;
- }
+ if (e820_any_mapped(aper, aper + size, E820_RAM)) {
+ printk(KERN_ERR PFX "Aperture pointing to RAM\n");
+ return 0;
}
/* Request the Aperture. This catches cases when someone else