diff options
Diffstat (limited to 'arch/x86/pci/amd_bus.c')
| -rw-r--r-- | arch/x86/pci/amd_bus.c | 74 |
1 files changed, 50 insertions, 24 deletions
diff --git a/arch/x86/pci/amd_bus.c b/arch/x86/pci/amd_bus.c index d02c598451e..a18141ae3f0 100644 --- a/arch/x86/pci/amd_bus.c +++ b/arch/x86/pci/amd_bus.c @@ -1,44 +1,25 @@ #include <linux/init.h> #include <linux/pci.h> +#include <linux/topology.h> #include "pci.h" #ifdef CONFIG_X86_64 - #include <asm/pci-direct.h> #include <asm/mpspec.h> #include <linux/cpumask.h> -#include <linux/topology.h> +#endif /* * This discovers the pcibus <-> node mapping on AMD K8. * also get peer root bus resource for io,mmio */ - -/* - * sub bus (transparent) will use entres from 3 to store extra from root, - * so need to make sure have enought slot there, increase PCI_BUS_NUM_RESOURCES? - */ -#define RES_NUM 16 -struct pci_root_info { - char name[12]; - unsigned int res_num; - struct resource res[RES_NUM]; - int bus_min; - int bus_max; - int node; - int link; -}; - -/* 4 at this time, it may become to 32 */ -#define PCI_ROOT_NR 4 -static int pci_root_num; -static struct pci_root_info pci_root_info[PCI_ROOT_NR]; - #ifdef CONFIG_NUMA #define BUS_NR 256 +#ifdef CONFIG_X86_64 + static int mp_bus_to_node[BUS_NR]; void set_mp_bus_to_node(int busnum, int node) @@ -65,7 +46,52 @@ int get_mp_bus_to_node(int busnum) return node; } -#endif + +#else /* CONFIG_X86_32 */ + +static unsigned char mp_bus_to_node[BUS_NR]; + +void set_mp_bus_to_node(int busnum, int node) +{ + if (busnum >= 0 && busnum < BUS_NR) + mp_bus_to_node[busnum] = (unsigned char) node; +} + +int get_mp_bus_to_node(int busnum) +{ + int node; + + if (busnum < 0 || busnum > (BUS_NR - 1)) + return 0; + node = mp_bus_to_node[busnum]; + return node; +} + +#endif /* CONFIG_X86_32 */ + +#endif /* CONFIG_NUMA */ + +#ifdef CONFIG_X86_64 + +/* + * sub bus (transparent) will use entres from 3 to store extra from root, + * so need to make sure have enought slot there, increase PCI_BUS_NUM_RESOURCES? + */ +#define RES_NUM 16 +struct pci_root_info { + char name[12]; + unsigned int res_num; + struct resource res[RES_NUM]; + int bus_min; + int bus_max; + int node; + int link; +}; + +/* 4 at this time, it may become to 32 */ +#define PCI_ROOT_NR 4 +static int pci_root_num; +static struct pci_root_info pci_root_info[PCI_ROOT_NR]; void set_pci_bus_resources_arch_default(struct pci_bus *b) { |