diff options
Diffstat (limited to 'src/northbridge/intel/gm45/northbridge.c')
| -rw-r--r-- | src/northbridge/intel/gm45/northbridge.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/src/northbridge/intel/gm45/northbridge.c b/src/northbridge/intel/gm45/northbridge.c index 11ca6f49d8..42561e4d5d 100644 --- a/src/northbridge/intel/gm45/northbridge.c +++ b/src/northbridge/intel/gm45/northbridge.c @@ -78,7 +78,7 @@ static int decode_pcie_bar(u32 *const base, u32 *const len) static void mch_domain_read_resources(device_t dev) { u64 tom, touud; - u32 tomk, tolud, uma_sizek = 0; + u32 tomk, tolud, uma_sizek = 0, usable_tomk; u32 pcie_config_base, pcie_config_size; /* Total Memory 2GB example: @@ -137,12 +137,16 @@ static void mch_domain_read_resources(device_t dev) uma_sizek = gms_sizek + gsm_sizek; } - printk(BIOS_INFO, "Available memory below 4GB: %uM\n", tomk >> 10); + usable_tomk = ALIGN_DOWN(tomk, 64 << 10); + if (tomk - usable_tomk > (16 << 10)) + usable_tomk = tomk; + + printk(BIOS_INFO, "Available memory below 4GB: %uM\n", usable_tomk >> 10); /* Report the memory regions */ ram_resource(dev, 3, 0, legacy_hole_base_k); ram_resource(dev, 4, legacy_hole_base_k + legacy_hole_size_k, - (tomk - (legacy_hole_base_k + legacy_hole_size_k))); + (usable_tomk - (legacy_hole_base_k + legacy_hole_size_k))); /* * If >= 4GB installed then memory from TOLUD to 4GB |