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drm/nouveau/bios/vpstate: There are some fermi vbios with no boost or tdp entry

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If the entry size is too small, default to invalid values for both
boost_id and tdp_id, so as to default to the base clock in both cases.

Signed-off-by: Karol Herbst <karolherbst@gmail.com>
Signed-off-by: Martin Peres <martin.peres@free.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Karol Herbst 2018-07-14 12:52:08 +02:00 committed by Ben Skeggs
parent 2ae4c5f6ff
commit f706037c4e
1 changed files with 8 additions and 2 deletions
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6
drivers/gpu/drm/nouveau/nvkm/subdev/bios/vpstate.c
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@ -58,8 +58,14 @@ nvbios_vpstate_parse(struct nvkm_bios *b, struct nvbios_vpstate_header *h)
h->ecount = nvbios_rd08(b, h->offset + 0x5);
h->base_id = nvbios_rd08(b, h->offset + 0x0f);
if (h->hlen > 0x10)
h->boost_id = nvbios_rd08(b, h->offset + 0x10);
else
h->boost_id = 0xff;
if (h->hlen > 0x11)
h->tdp_id = nvbios_rd08(b, h->offset + 0x11);
else
h->tdp_id = 0xff;
return 0;
default:
return -EINVAL;