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-rw-r--r--arch/i386/kernel/srat.c8
-rw-r--r--arch/i386/pci/acpi.c17
-rw-r--r--arch/x86_64/kernel/mpparse.c2
-rw-r--r--arch/x86_64/mm/srat.c7
-rw-r--r--arch/x86_64/pci/k8-bus.c10
-rw-r--r--include/asm-i386/numa.h3
-rw-r--r--include/asm-i386/topology.h2
-rw-r--r--include/asm-x86_64/numa.h1
-rw-r--r--include/asm-x86_64/topology.h3
9 files changed, 44 insertions, 9 deletions
diff --git a/arch/i386/kernel/srat.c b/arch/i386/kernel/srat.c
index 7b3b27d6440..516bf5653b0 100644
--- a/arch/i386/kernel/srat.c
+++ b/arch/i386/kernel/srat.c
@@ -213,12 +213,18 @@ static __init void node_read_chunk(int nid, struct node_memory_chunk_s *memory_c
node_end_pfn[nid] = memory_chunk->end_pfn;
}
+static u8 pxm_to_nid_map[MAX_PXM_DOMAINS];/* _PXM to logical node ID map */
+
+int pxm_to_node(int pxm)
+{
+ return pxm_to_nid_map[pxm];
+}
+
/* Parse the ACPI Static Resource Affinity Table */
static int __init acpi20_parse_srat(struct acpi_table_srat *sratp)
{
u8 *start, *end, *p;
int i, j, nid;
- u8 pxm_to_nid_map[MAX_PXM_DOMAINS];/* _PXM to logical node ID map */
u8 nid_to_pxm_map[MAX_NUMNODES];/* logical node ID to _PXM map */
start = (u8 *)(&(sratp->reserved) + 1); /* skip header */
diff --git a/arch/i386/pci/acpi.c b/arch/i386/pci/acpi.c
index 42913f43feb..2941674f35e 100644
--- a/arch/i386/pci/acpi.c
+++ b/arch/i386/pci/acpi.c
@@ -3,16 +3,31 @@
#include <linux/init.h>
#include <linux/irq.h>
#include <asm/hw_irq.h>
+#include <asm/numa.h>
#include "pci.h"
struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int domain, int busnum)
{
+ struct pci_bus *bus;
+
if (domain != 0) {
printk(KERN_WARNING "PCI: Multiple domains not supported\n");
return NULL;
}
- return pcibios_scan_root(busnum);
+ bus = pcibios_scan_root(busnum);
+#ifdef CONFIG_ACPI_NUMA
+ if (bus != NULL) {
+ int pxm = acpi_get_pxm(device->handle);
+ if (pxm >= 0) {
+ bus->sysdata = (void *)(unsigned long)pxm_to_node(pxm);
+ printk("bus %d -> pxm %d -> node %ld\n",
+ busnum, pxm, (long)(bus->sysdata));
+ }
+ }
+#endif
+
+ return bus;
}
extern int pci_routeirq;
diff --git a/arch/x86_64/kernel/mpparse.c b/arch/x86_64/kernel/mpparse.c
index 312ecc9e5f7..11642526c5b 100644
--- a/arch/x86_64/kernel/mpparse.c
+++ b/arch/x86_64/kernel/mpparse.c
@@ -46,8 +46,6 @@ int acpi_found_madt;
int apic_version [MAX_APICS];
unsigned char mp_bus_id_to_type [MAX_MP_BUSSES] = { [0 ... MAX_MP_BUSSES-1] = -1 };
int mp_bus_id_to_pci_bus [MAX_MP_BUSSES] = { [0 ... MAX_MP_BUSSES-1] = -1 };
-unsigned char pci_bus_to_node [256];
-EXPORT_SYMBOL(pci_bus_to_node);
static int mp_current_pci_id = 0;
/* I/O APIC entries */
diff --git a/arch/x86_64/mm/srat.c b/arch/x86_64/mm/srat.c
index 92f6ec79b23..db6b073a149 100644
--- a/arch/x86_64/mm/srat.c
+++ b/arch/x86_64/mm/srat.c
@@ -25,6 +25,13 @@ static nodemask_t nodes_found __initdata;
static struct node nodes[MAX_NUMNODES] __initdata;
static __u8 pxm2node[256] = { [0 ... 255] = 0xff };
+int pxm_to_node(int pxm)
+{
+ if ((unsigned)pxm >= 256)
+ return 0;
+ return pxm2node[pxm];
+}
+
static __init int setup_node(int pxm)
{
unsigned node = pxm2node[pxm];
diff --git a/arch/x86_64/pci/k8-bus.c b/arch/x86_64/pci/k8-bus.c
index d80c323669e..3acf60ded2a 100644
--- a/arch/x86_64/pci/k8-bus.c
+++ b/arch/x86_64/pci/k8-bus.c
@@ -58,10 +58,16 @@ fill_mp_bus_to_cpumask(void)
for (j = SECONDARY_LDT_BUS_NUMBER(ldtbus);
j <= SUBORDINATE_LDT_BUS_NUMBER(ldtbus);
j++) {
- int node = NODE_ID(nid);
+ struct pci_bus *bus;
+ long node = NODE_ID(nid);
+ /* Algorithm a bit dumb, but
+ it shouldn't matter here */
+ bus = pci_find_bus(0, j);
+ if (!bus)
+ continue;
if (!node_online(node))
node = 0;
- pci_bus_to_node[j] = node;
+ bus->sysdata = (void *)node;
}
}
}
diff --git a/include/asm-i386/numa.h b/include/asm-i386/numa.h
new file mode 100644
index 00000000000..96fcb157db1
--- /dev/null
+++ b/include/asm-i386/numa.h
@@ -0,0 +1,3 @@
+
+int pxm_to_nid(int pxm);
+
diff --git a/include/asm-i386/topology.h b/include/asm-i386/topology.h
index 2461b731781..0ec27c9e8e4 100644
--- a/include/asm-i386/topology.h
+++ b/include/asm-i386/topology.h
@@ -60,7 +60,7 @@ static inline int node_to_first_cpu(int node)
return first_cpu(mask);
}
-#define pcibus_to_node(bus) mp_bus_id_to_node[(bus)->number]
+#define pcibus_to_node(bus) ((long) (bus)->sysdata)
#define pcibus_to_cpumask(bus) node_to_cpumask(pcibus_to_node(bus))
/* sched_domains SD_NODE_INIT for NUMAQ machines */
diff --git a/include/asm-x86_64/numa.h b/include/asm-x86_64/numa.h
index 3aaf7002721..bcf55c3f7f7 100644
--- a/include/asm-x86_64/numa.h
+++ b/include/asm-x86_64/numa.h
@@ -9,6 +9,7 @@ struct node {
};
extern int compute_hash_shift(struct node *nodes, int numnodes);
+extern int pxm_to_node(int nid);
#define ZONE_ALIGN (1UL << (MAX_ORDER+PAGE_SHIFT))
diff --git a/include/asm-x86_64/topology.h b/include/asm-x86_64/topology.h
index c1bc3fad482..1c603cd7e4d 100644
--- a/include/asm-x86_64/topology.h
+++ b/include/asm-x86_64/topology.h
@@ -13,7 +13,6 @@
extern cpumask_t cpu_online_map;
extern unsigned char cpu_to_node[];
-extern unsigned char pci_bus_to_node[];
extern cpumask_t node_to_cpumask[];
#ifdef CONFIG_ACPI_NUMA
@@ -26,7 +25,7 @@ extern int __node_distance(int, int);
#define parent_node(node) (node)
#define node_to_first_cpu(node) (__ffs(node_to_cpumask[node]))
#define node_to_cpumask(node) (node_to_cpumask[node])
-#define pcibus_to_node(bus) pci_bus_to_node[(bus)->number]
+#define pcibus_to_node(bus) ((long)(bus->sysdata))
#define pcibus_to_cpumask(bus) node_to_cpumask(pcibus_to_node(bus));
/* sched_domains SD_NODE_INIT for x86_64 machines */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-26 23:10:28 +0000