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drm/nv4c/bios: disallow retrieving from prom on nv4x igp's

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Suggested-by: Marcin Kościelnicki <koriakin@0x04.net>
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ilia Mirkin 2014-02-05 14:33:04 -05:00 committed by Ben Skeggs
parent b71313e14b
commit 5ac607ec40
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/nouveau/core/subdev/bios/base.c
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@ -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;