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| author | Mauro Carvalho Chehab <mchehab@infradead.org> | 2006-02-06 10:43:13 -0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2006-02-06 10:43:13 -0200 |
| commit | b2faf597d93bdf5e2d12d93ea0815935a73f749e (patch) | |
| tree | 1876616290ff282b8a0814e2429d23e0104f3701 /arch/i386/pci/mmconfig.c | |
| parent | 638e174688f58200d0deb7435093435e7d737b09 (diff) | |
| parent | 410c05427a69f53851637ccb85c2212131409fbd (diff) | |
| download | op-kernel-dev-b2faf597d93bdf5e2d12d93ea0815935a73f749e.zip op-kernel-dev-b2faf597d93bdf5e2d12d93ea0815935a73f749e.tar.gz | |
Merge branch 'origin'
Diffstat (limited to 'arch/i386/pci/mmconfig.c')
| -rw-r--r-- | arch/i386/pci/mmconfig.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/arch/i386/pci/mmconfig.c b/arch/i386/pci/mmconfig.c index 4bb4d4b..0ee8a98 100644 --- a/arch/i386/pci/mmconfig.c +++ b/arch/i386/pci/mmconfig.c @@ -36,8 +36,7 @@ static u32 get_base_addr(unsigned int seg, int bus, unsigned devfn) while (1) { ++cfg_num; if (cfg_num >= pci_mmcfg_config_num) { - /* Not found - fallback to type 1 */ - return 0; + break; } cfg = &pci_mmcfg_config[cfg_num]; if (cfg->pci_segment_group_number != seg) @@ -46,6 +45,18 @@ static u32 get_base_addr(unsigned int seg, int bus, unsigned devfn) (cfg->end_bus_number >= bus)) return cfg->base_address; } + + /* Handle more broken MCFG tables on Asus etc. + They only contain a single entry for bus 0-0. Assume + this applies to all busses. */ + cfg = &pci_mmcfg_config[0]; + if (pci_mmcfg_config_num == 1 && + cfg->pci_segment_group_number == 0 && + (cfg->start_bus_number | cfg->end_bus_number) == 0) + return cfg->base_address; + + /* Fall back to type 0 */ + return 0; } static inline void pci_exp_set_dev_base(unsigned int base, int bus, int devfn) |
