joel16/android_kernel_sony_msm8994
1
0
Fork 0
mirror of https://github.com/joel16/android_kernel_sony_msm8994.git synced 2024-11-23 12:10:29 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

drm/nouveau/bios: fix offset calculation for BMPv1 bioses

Browse Source 
commit 5d2f4767c4eacab351b8450b0de4d3261fe1a957 upstream.

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 <mauromol@tiscali.it>
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ilia Mirkin 2014-01-07 12:33:59 -05:00 committed by Greg Kroah-Hartman
parent 6ba854e9bf
commit 366d6b206f
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/gpu/drm/nouveau/core/subdev/bios/init.c
View File

@ -366,13 +366,13 @@ 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));
}