From e34398952e056bbd99f9099fae77be26e5c6aa78 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Thu, 11 Feb 2010 15:38:23 +1000 Subject: [PATCH] drm/radeon/kms: check for valid PCI bios and not OF rom stops us trying to treat a OF rom as a PCI rom. Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_bios.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/gpu/drm/radeon/radeon_bios.c b/drivers/gpu/drm/radeon/radeon_bios.c index 906921740c60..26856ed8d972 100644 --- a/drivers/gpu/drm/radeon/radeon_bios.c +++ b/drivers/gpu/drm/radeon/radeon_bios.c @@ -411,6 +411,12 @@ bool radeon_get_bios(struct radeon_device *rdev) goto free_bios; } + tmp = RBIOS16(0x18); + if (RBIOS8(tmp + 0x14) != 0x0) { + DRM_INFO("Not an x86 BIOS ROM, not using.\n"); + goto free_bios; + } + rdev->bios_header_start = RBIOS16(0x48); if (!rdev->bios_header_start) { goto free_bios; -- 2.20.1