From 5d2f4767c4eacab351b8450b0de4d3261fe1a957 Mon Sep 17 00:00:00 2001 From: Ilia Mirkin Date: Tue, 7 Jan 2014 12:33:59 -0500 Subject: drm/nouveau/bios: fix offset calculation for BMPv1 bioses The only BIOS on record that needs the 14 offset has a bios major version 2 but BMP version 1.01. Another bunch of BIOSes that need the 18 offset have BMP version 2.01 or 5.01 or higher. So instead of looking at the bios major version, look at the BMP version. BIOSes with BMP version 0 do not contain a detectable script, so always return 0 for them. See https://bugs.freedesktop.org/show_bug.cgi?id=68835 Reported-by: Mauro Molinari Signed-off-by: Ilia Mirkin Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/core/subdev/bios/init.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/init.c b/drivers/gpu/drm/nouveau/core/subdev/bios/init.c index 9f5b81e99731..df1b1b423093 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/bios/init.c +++ b/drivers/gpu/drm/nouveau/core/subdev/bios/init.c @@ -365,13 +365,13 @@ static u16 init_script(struct nouveau_bios *bios, int index) { struct nvbios_init init = { .bios = bios }; - u16 data; + u16 bmp_ver = bmp_version(bios), data; - if (bmp_version(bios) && bmp_version(bios) < 0x0510) { - if (index > 1) + if (bmp_ver && bmp_ver < 0x0510) { + if (index > 1 || bmp_ver < 0x0100) return 0x0000; - data = bios->bmp_offset + (bios->version.major < 2 ? 14 : 18); + data = bios->bmp_offset + (bmp_ver < 0x0200 ? 14 : 18); return nv_ro16(bios, data + (index * 2)); } -- cgit v1.2.3-59-g8ed1b