+/* ATRM is used to get the BIOS on the discrete cards in
+ * dual-gpu systems.
+ */
+static bool radeon_atrm_get_bios(struct radeon_device *rdev)
+{
+ int ret;
+ int size = 64 * 1024;
+ int i;
+
+ if (!radeon_atrm_supported(rdev->pdev))
+ return false;
+
+ rdev->bios = kmalloc(size, GFP_KERNEL);
+ if (!rdev->bios) {
+ DRM_ERROR("Unable to allocate bios\n");
+ return false;
+ }
+
+ for (i = 0; i < size / ATRM_BIOS_PAGE; i++) {
+ ret = radeon_atrm_get_bios_chunk(rdev->bios,
+ (i * ATRM_BIOS_PAGE),
+ ATRM_BIOS_PAGE);
+ if (ret <= 0)
+ break;
+ }
+
+ if (i == 0 || rdev->bios[0] != 0x55 || rdev->bios[1] != 0xaa) {
+ kfree(rdev->bios);
+ return false;
+ }
+ return true;
+}