Commit 5dc7f4aa authored by Ben Skeggs's avatar Ben Skeggs
Browse files

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



Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
Cc: stable@vger.kernel.org
parent 7b624ad8

drivers/gpu/drm/nouveau/nvkm/subdev/bios/priv.h

+1 −0
Original line number Diff line number Diff line
@@ -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);

drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadow.c

+5 −2
Original line number Diff line number Diff line
@@ -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->require_checksum) {

				if (mthd->func->rw)

					score += 1;

				score += 1;

			} else

				return 0;

		} else {

			score += 3;

		}

drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowacpi.c

+1 −0
Original line number Diff line number Diff line
@@ -99,6 +99,7 @@ nvbios_acpi_fast = { 
	.init = acpi_init,

	.read = acpi_read_fast,

	.rw = false,

	.require_checksum = true,

};



const struct nvbios_source