[PATCH 3/3] drm/nv4c/bios: disallow retrieving from prom on nv4x igp's

Suggested-by: Marcin Kościelnicki koriakin@0x04.net Signed-off-by: Ilia Mirkin imirkin@alum.mit.edu --- drivers/gpu/drm/nouveau/core/subdev/bios/base.c | 4 ++++ 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/base.c b/drivers/gpu/drm/nouveau/core/subdev/bios/base.c index aa0fbbe..ef0c9c4 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/bios/base.c +++ b/drivers/gpu/drm/nouveau/core/subdev/bios/base.c @@ -130,6 +130,10 @@ nouveau_bios_shadow_prom(struct nouveau_bios *bios) u16 pcir; int i;

+ /* there is no prom on nv4x IGP's */ + if (device->card_type == NV_40 && device->chipset >= 0x4c) + return; + /* enable access to rom */ if (device->card_type >= NV_50) pcireg = 0x088050;