diff options
Diffstat (limited to 'src/northbridge')
| -rw-r--r-- | src/northbridge/intel/gm45/igd.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/src/northbridge/intel/gm45/igd.c b/src/northbridge/intel/gm45/igd.c index 7e7bbbe9cc..dc0cc91fd3 100644 --- a/src/northbridge/intel/gm45/igd.c +++ b/src/northbridge/intel/gm45/igd.c @@ -153,10 +153,13 @@ void igd_compute_ggc(sysinfo_t *const sysinfo) /* Graphics Stolen Memory: 2MB GTT (0x0300) when VT-d disabled, 2MB GTT + 2MB shadow GTT (0x0b00) else. */ if (get_option(&gfxsize, "gfx_uma_size") != CB_SUCCESS) { - /* 0 for 32MB */ - gfxsize = 0; + /* 4 for 32MB, default if not set in cmos */ + gfxsize = 4; } - sysinfo->ggc = 0x0300 | ((gfxsize + 5) << 4); + /* Handle invalid cmos settings */ + if (gfxsize > 11) + gfxsize = 4; + sysinfo->ggc = 0x0300 | ((gfxsize + 1) << 4); if (!(capid & (1 << (48 - 32)))) sysinfo->ggc |= 0x0800; } |