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drm/nouveau/bios: require checksum to match for fast acpi shadow method

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commit 5dc7f4aa9d84ea94b54a9bfcef095f0289f1ebda upstream.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ben Skeggs 2016-10-14 13:16:36 +10:00 committed by Greg Kroah-Hartman
parent a163451c80
commit 3a2990e67b
3 changed files with 7 additions and 2 deletions
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1
drivers/gpu/drm/nouveau/nvkm/subdev/bios/priv.h
View File

@ -12,6 +12,7 @@ struct nvbios_source {
bool rw;
bool ignore_checksum;
bool no_pcir;
bool require_checksum;
};
int nvbios_extend(struct nvkm_bios *, u32 length);

7
drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadow.c
View File

@ -86,9 +86,12 @@ shadow_image(struct nvkm_bios *bios, int idx, u32 offset, struct shadow *mthd)
nvbios_checksum(&bios->data[image.base], image.size)) {
nvkm_debug(subdev, "%08x: checksum failed\n",
image.base);
if (mthd->func->rw)
if (!mthd->func->require_checksum) {
if (mthd->func->rw)
score += 1;
score += 1;
score += 1;
} else
return 0;
} else {
score += 3;
}

1
drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowacpi.c
View File

@ -99,6 +99,7 @@ nvbios_acpi_fast = {
.init = acpi_init,
.read = acpi_read_fast,
.rw = false,
.require_checksum = true,
};
const struct nvbios_source