diff options
| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2014-05-31 16:07:14 +0300 |
|---|---|---|
| committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2014-06-02 10:50:49 +0200 |
| commit | 15935ebe242bcdd6c84f5f2e9fb8a573e69a1c60 (patch) | |
| tree | d252743833158a09b6e6e5c5183590693013b634 /src/northbridge | |
| parent | 9c65978f3849098ad54970bde55a46a133bc8d5a (diff) | |
i945: Fix resource bases for UMA and TSEG
TSEG appears in memory below graphics UMA region. Seems boards
with i945 had TSEG disabled, so the incorrect order did not make
a difference.
Change-Id: Ie293aab17b60b5f06a871a773cd42577c7dc7c7b
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5891
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Vladimir Serbinenko <phcoder@gmail.com>
Diffstat (limited to 'src/northbridge')
| -rw-r--r-- | src/northbridge/intel/i945/northbridge.c | 46 |
1 files changed, 23 insertions, 23 deletions
diff --git a/src/northbridge/intel/i945/northbridge.c b/src/northbridge/intel/i945/northbridge.c index f0bffb3ed3..948f5c13b7 100644 --- a/src/northbridge/intel/i945/northbridge.c +++ b/src/northbridge/intel/i945/northbridge.c @@ -106,6 +106,29 @@ static void pci_domain_set_resources(device_t dev) tomk_stolen = tomk; /* Note: subtract IGD device and TSEG */ + reg16 = pci_read_config16(dev_find_slot(0, PCI_DEVFN(0, 0)), GGC); + if (!(reg16 & 2)) { + int uma_size = 0; + printk(BIOS_DEBUG, "IGD decoded, subtracting "); + reg16 >>= 4; + reg16 &= 7; + switch (reg16) { + case 1: + uma_size = 1024; + break; + case 3: + uma_size = 8192; + break; + } + + printk(BIOS_DEBUG, "%dM UMA\n", uma_size >> 10); + tomk_stolen -= uma_size; + + /* For reserving UMA memory in the memory map */ + uma_memory_base = tomk_stolen * 1024ULL; + uma_memory_size = uma_size * 1024ULL; + } + reg8 = pci_read_config8(dev_find_slot(0, PCI_DEVFN(0, 0)), 0x9e); if (reg8 & 1) { int tseg_size = 0; @@ -132,29 +155,6 @@ static void pci_domain_set_resources(device_t dev) tseg_memory_size = tseg_size * 1024ULL; } - reg16 = pci_read_config16(dev_find_slot(0, PCI_DEVFN(0, 0)), GGC); - if (!(reg16 & 2)) { - int uma_size = 0; - printk(BIOS_DEBUG, "IGD decoded, subtracting "); - reg16 >>= 4; - reg16 &= 7; - switch (reg16) { - case 1: - uma_size = 1024; - break; - case 3: - uma_size = 8192; - break; - } - - printk(BIOS_DEBUG, "%dM UMA\n", uma_size >> 10); - tomk_stolen -= uma_size; - - /* For reserving UMA memory in the memory map */ - uma_memory_base = tomk_stolen * 1024ULL; - uma_memory_size = uma_size * 1024ULL; - } - /* The following needs to be 2 lines, otherwise the second * number is always 0 */ |