x86_64: prepare shared pci/k8-bus.c

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86_64/pci/Makefile b/arch/x86_64/pci/Makefile
index c9eddc8859c0f797818c81dbaed75d4618a605d2..482b2945a472e48da188ae63fae922472dab75a5 100644 (file)
--- a/arch/x86_64/pci/Makefile
+++ b/arch/x86_64/pci/Makefile
@@ -13,7 +13,7 @@ obj-y                 += legacy.o irq.o common.o early.o
 # mmconfig has a 64bit special
 obj-$(CONFIG_PCI_MMCONFIG) += mmconfig.o direct.o mmconfig-shared.o
 
-obj-$(CONFIG_NUMA)     += k8-bus.o
+obj-$(CONFIG_NUMA)     += k8-bus_64.o
 
 direct-y += ../../i386/pci/direct.o
 acpi-y   += ../../i386/pci/acpi.o

diff --git a/arch/x86_64/pci/k8-bus.c b/arch/x86_64/pci/k8-bus.c
deleted file mode 100644 (file)
index 9cc813e..0000000
--- a/arch/x86_64/pci/k8-bus.c
+++ /dev/null
@@ -1,83 +0,0 @@
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <asm/mpspec.h>
-#include <linux/cpumask.h>
-
-/*
- * This discovers the pcibus <-> node mapping on AMD K8.
- *
- * RED-PEN need to call this again on PCI hotplug
- * RED-PEN empty cpus get reported wrong
- */
-
-#define NODE_ID_REGISTER 0x60
-#define NODE_ID(dword) (dword & 0x07)
-#define LDT_BUS_NUMBER_REGISTER_0 0x94
-#define LDT_BUS_NUMBER_REGISTER_1 0xB4
-#define LDT_BUS_NUMBER_REGISTER_2 0xD4
-#define NR_LDT_BUS_NUMBER_REGISTERS 3
-#define SECONDARY_LDT_BUS_NUMBER(dword) ((dword >> 8) & 0xFF)
-#define SUBORDINATE_LDT_BUS_NUMBER(dword) ((dword >> 16) & 0xFF)
-#define PCI_DEVICE_ID_K8HTCONFIG 0x1100
-
-/**
- * fill_mp_bus_to_cpumask()
- * fills the mp_bus_to_cpumask array based according to the LDT Bus Number
- * Registers found in the K8 northbridge
- */
-__init static int
-fill_mp_bus_to_cpumask(void)
-{
-       struct pci_dev *nb_dev = NULL;
-       int i, j;
-       u32 ldtbus, nid;
-       static int lbnr[3] = {
-               LDT_BUS_NUMBER_REGISTER_0,
-               LDT_BUS_NUMBER_REGISTER_1,
-               LDT_BUS_NUMBER_REGISTER_2
-       };
-
-       while ((nb_dev = pci_get_device(PCI_VENDOR_ID_AMD,
-                       PCI_DEVICE_ID_K8HTCONFIG, nb_dev))) {
-               pci_read_config_dword(nb_dev, NODE_ID_REGISTER, &nid);
-
-               for (i = 0; i < NR_LDT_BUS_NUMBER_REGISTERS; i++) {
-                       pci_read_config_dword(nb_dev, lbnr[i], &ldtbus);
-                       /*
-                        * if there are no busses hanging off of the current
-                        * ldt link then both the secondary and subordinate
-                        * bus number fields are set to 0.
-                        * 
-                        * RED-PEN
-                        * This is slightly broken because it assumes
-                        * HT node IDs == Linux node ids, which is not always
-                        * true. However it is probably mostly true.
-                        */
-                       if (!(SECONDARY_LDT_BUS_NUMBER(ldtbus) == 0
-                               && SUBORDINATE_LDT_BUS_NUMBER(ldtbus) == 0)) {
-                               for (j = SECONDARY_LDT_BUS_NUMBER(ldtbus);
-                                    j <= SUBORDINATE_LDT_BUS_NUMBER(ldtbus);
-                                    j++) { 
-                                       struct pci_bus *bus;
-                                       struct pci_sysdata *sd;
-
-                                       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;
-
-                                       sd = bus->sysdata;
-                                       sd->node = node;
-                               }               
-                       }
-               }
-       }
-
-       return 0;
-}
-
-fs_initcall(fill_mp_bus_to_cpumask);

diff --git a/arch/x86_64/pci/k8-bus_64.c b/arch/x86_64/pci/k8-bus_64.c
new file mode 100644 (file)
index 0000000..9cc813e
--- /dev/null
+++ b/arch/x86_64/pci/k8-bus_64.c
@@ -0,0 +1,83 @@
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <asm/mpspec.h>
+#include <linux/cpumask.h>
+
+/*
+ * This discovers the pcibus <-> node mapping on AMD K8.
+ *
+ * RED-PEN need to call this again on PCI hotplug
+ * RED-PEN empty cpus get reported wrong
+ */
+
+#define NODE_ID_REGISTER 0x60
+#define NODE_ID(dword) (dword & 0x07)
+#define LDT_BUS_NUMBER_REGISTER_0 0x94
+#define LDT_BUS_NUMBER_REGISTER_1 0xB4
+#define LDT_BUS_NUMBER_REGISTER_2 0xD4
+#define NR_LDT_BUS_NUMBER_REGISTERS 3
+#define SECONDARY_LDT_BUS_NUMBER(dword) ((dword >> 8) & 0xFF)
+#define SUBORDINATE_LDT_BUS_NUMBER(dword) ((dword >> 16) & 0xFF)
+#define PCI_DEVICE_ID_K8HTCONFIG 0x1100
+
+/**
+ * fill_mp_bus_to_cpumask()
+ * fills the mp_bus_to_cpumask array based according to the LDT Bus Number
+ * Registers found in the K8 northbridge
+ */
+__init static int
+fill_mp_bus_to_cpumask(void)
+{
+       struct pci_dev *nb_dev = NULL;
+       int i, j;
+       u32 ldtbus, nid;
+       static int lbnr[3] = {
+               LDT_BUS_NUMBER_REGISTER_0,
+               LDT_BUS_NUMBER_REGISTER_1,
+               LDT_BUS_NUMBER_REGISTER_2
+       };
+
+       while ((nb_dev = pci_get_device(PCI_VENDOR_ID_AMD,
+                       PCI_DEVICE_ID_K8HTCONFIG, nb_dev))) {
+               pci_read_config_dword(nb_dev, NODE_ID_REGISTER, &nid);
+
+               for (i = 0; i < NR_LDT_BUS_NUMBER_REGISTERS; i++) {
+                       pci_read_config_dword(nb_dev, lbnr[i], &ldtbus);
+                       /*
+                        * if there are no busses hanging off of the current
+                        * ldt link then both the secondary and subordinate
+                        * bus number fields are set to 0.
+                        * 
+                        * RED-PEN
+                        * This is slightly broken because it assumes
+                        * HT node IDs == Linux node ids, which is not always
+                        * true. However it is probably mostly true.
+                        */
+                       if (!(SECONDARY_LDT_BUS_NUMBER(ldtbus) == 0
+                               && SUBORDINATE_LDT_BUS_NUMBER(ldtbus) == 0)) {
+                               for (j = SECONDARY_LDT_BUS_NUMBER(ldtbus);
+                                    j <= SUBORDINATE_LDT_BUS_NUMBER(ldtbus);
+                                    j++) { 
+                                       struct pci_bus *bus;
+                                       struct pci_sysdata *sd;
+
+                                       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;
+
+                                       sd = bus->sysdata;
+                                       sd->node = node;
+                               }               
+                       }
+               }
+       }
+
+       return 0;
+}
+
+fs_initcall(fill_mp_bus_to_cpumask);