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Commit ce23b234 authored by Ben Skeggs's avatar Ben Skeggs
Browse files

drm/nouveau/bios: fix shadowing from PROM on big-endian systems 



Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent a3d0b121

drivers/gpu/drm/nouveau/core/subdev/bios/base.c

+6 −4
Original line number Diff line number Diff line
@@ -168,7 +168,8 @@ nouveau_bios_shadow_prom(struct nouveau_bios *bios) 
	 */

	i = 16;

	do {

		if ((nv_rd32(bios, 0x300000) & 0xffff) == 0xaa55)

		u32 data = le32_to_cpu(nv_rd32(bios, 0x300000)) & 0xffff;

		if (data == 0xaa55)

			break;

	} while (i--);
@@ -176,14 +177,15 @@ nouveau_bios_shadow_prom(struct nouveau_bios *bios) 
		goto out;



	/* read entire bios image to system memory */

	bios->size = ((nv_rd32(bios, 0x300000) >> 16) & 0xff) * 512;

	bios->size = (le32_to_cpu(nv_rd32(bios, 0x300000)) >> 16) & 0xff;

	bios->size = bios->size * 512;

	if (!bios->size)

		goto out;



	bios->data = kmalloc(bios->size, GFP_KERNEL);

	if (bios->data) {

		for (i = 0; i < bios->size; i += 4)

			nv_wo32(bios, i, nv_rd32(bios, 0x300000 + i));

			((u32 *)bios->data)[i/4] = nv_rd32(bios, 0x300000 + i);

	}



	/* check the PCI record header */