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drm/nouveau/bios: fix OF loading

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Currently OF bios load fails for a few reasons:
 - checksum failure
 - bios size too small
 - no PCIR header
 - bios length not a multiple of 4

In this change, we resolve all of the above by ignoring any checksum
failures (since OF VBIOS tends not to have a checksum), and faking the
PCIR data when loading from OF.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ilia Mirkin
2015-10-01 23:41:21 -04:00
committed by Ben Skeggs
parent f231976c2e
commit 25d295882a
3 changed files with 36 additions and 11 deletions
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3
drivers/gpu/drm/nouveau/nvkm/subdev/bios/priv.h
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@@ -8,7 +8,10 @@ struct nvbios_source {
void *(*init)(struct nvkm_bios *, const char *);
void (*fini)(void *);
u32 (*read)(void *, u32 offset, u32 length, struct nvkm_bios *);
u32 (*size)(void *);
bool rw;
bool ignore_checksum;
bool no_pcir;
};
int nvbios_extend(struct nvkm_bios *, u32 length);