x86/pci: seperate x86_pci_rootbus_res_quirks from amd_bus.c

Those functions are used by intel_bus.c so seperate them to another file. and
make amd_bus a bit smaller.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

4 files changed, 103 insertions, 100 deletions

diff --git a/arch/x86/pci/Makefile b/arch/x86/pci/Makefile
index d8a0a6279a4d..564b008a51c7 100644
--- a/arch/x86/pci/Makefile
+++ b/arch/x86/pci/Makefile
@@ -15,7 +15,7 @@ obj-$(CONFIG_X86_NUMAQ)		+= numaq_32.o
 
 obj-y                           += common.o early.o
 obj-y                           += amd_bus.o
-obj-$(CONFIG_X86_64)            += intel_bus.o
+obj-$(CONFIG_X86_64)            += bus_numa.o intel_bus.o
 
 ifeq ($(CONFIG_PCI_DEBUG),y)
 EXTRA_CFLAGS += -DDEBUG
diff --git a/arch/x86/pci/amd_bus.c b/arch/x86/pci/amd_bus.c
index 995f36096a42..95ecbd495955 100644
--- a/arch/x86/pci/amd_bus.c
+++ b/arch/x86/pci/amd_bus.c
@@ -6,8 +6,6 @@
 
 #ifdef CONFIG_X86_64
 #include <asm/pci-direct.h>
-#include <asm/mpspec.h>
-#include <linux/cpumask.h>
 #endif
 
 #include "bus_numa.h"
@@ -19,54 +17,6 @@
 
 #ifdef CONFIG_X86_64
 
-int pci_root_num;
-struct pci_root_info pci_root_info[PCI_ROOT_NR];
-static int found_all_numa_early;
-
-void x86_pci_root_bus_res_quirks(struct pci_bus *b)
-{
-        int i;
-        int j;
-        struct pci_root_info *info;
-
-        /* don't go for it if _CRS is used already */
-        if (b->resource[0] != &ioport_resource ||
-            b->resource[1] != &iomem_resource)
-                return;
-
-        if (!pci_root_num)
-                return;
-
-        /* for amd, if only one root bus, don't need to do anything */
-        if (pci_root_num < 2 && found_all_numa_early)
-                return;
-
-        for (i = 0; i < pci_root_num; i++) {
-                if (pci_root_info[i].bus_min == b->number)
-                        break;
-        }
-
-        if (i == pci_root_num)
-                return;
-
-        printk(KERN_DEBUG "PCI: peer root bus %02x res updated from pci conf\n",
-                        b->number);
-
-        info = &pci_root_info[i];
-        for (j = 0; j < info->res_num; j++) {
-                struct resource *res;
-                struct resource *root;
-
-                res = &info->res[j];
-                b->resource[j] = res;
-                if (res->flags & IORESOURCE_IO)
-                        root = &ioport_resource;
-                else
-                        root = &iomem_resource;
-                insert_resource(root, res);
-        }
-}
-
 #define RANGE_NUM 16
 
 struct res_range {
@@ -119,55 +69,6 @@ static void __init update_range(struct res_range *range, size_t start,
         }
 }
 
-void __init update_res(struct pci_root_info *info, size_t start,
-                              size_t end, unsigned long flags, int merge)
-{
-        int i;
-        struct resource *res;
-
-        if (start > end)
-                return;
-
-        if (!merge)
-                goto addit;
-
-        /* try to merge it with old one */
-        for (i = 0; i < info->res_num; i++) {
-                size_t final_start, final_end;
-                size_t common_start, common_end;
-
-                res = &info->res[i];
-                if (res->flags != flags)
-                        continue;
-
-                common_start = max((size_t)res->start, start);
-                common_end = min((size_t)res->end, end);
-                if (common_start > common_end + 1)
-                        continue;
-
-                final_start = min((size_t)res->start, start);
-                final_end = max((size_t)res->end, end);
-
-                res->start = final_start;
-                res->end = final_end;
-                return;
-        }
-
-addit:
-
-        /* need to add that */
-        if (info->res_num >= RES_NUM)
-                return;
-
-        res = &info->res[info->res_num];
-        res->name = info->name;
-        res->flags = flags;
-        res->start = start;
-        res->end = end;
-        res->child = NULL;
-        info->res_num++;
-}
-
 struct pci_hostbridge_probe {
         u32 bus;
         u32 slot;
diff --git a/arch/x86/pci/bus_numa.c b/arch/x86/pci/bus_numa.c
new file mode 100644
index 000000000000..145df00e0387
--- /dev/null
+++ b/arch/x86/pci/bus_numa.c
@@ -0,0 +1,101 @@
+#include <linux/init.h>
+#include <linux/pci.h>
+
+#include "bus_numa.h"
+
+int pci_root_num;
+struct pci_root_info pci_root_info[PCI_ROOT_NR];
+int found_all_numa_early;
+
+void x86_pci_root_bus_res_quirks(struct pci_bus *b)
+{
+        int i;
+        int j;
+        struct pci_root_info *info;
+
+        /* don't go for it if _CRS is used already */
+        if (b->resource[0] != &ioport_resource ||
+            b->resource[1] != &iomem_resource)
+                return;
+
+        if (!pci_root_num)
+                return;
+
+        /* for amd, if only one root bus, don't need to do anything */
+        if (pci_root_num < 2 && found_all_numa_early)
+                return;
+
+        for (i = 0; i < pci_root_num; i++) {
+                if (pci_root_info[i].bus_min == b->number)
+                        break;
+        }
+
+        if (i == pci_root_num)
+                return;
+
+        printk(KERN_DEBUG "PCI: peer root bus %02x res updated from pci conf\n",
+                        b->number);
+
+        info = &pci_root_info[i];
+        for (j = 0; j < info->res_num; j++) {
+                struct resource *res;
+                struct resource *root;
+
+                res = &info->res[j];
+                b->resource[j] = res;
+                if (res->flags & IORESOURCE_IO)
+                        root = &ioport_resource;
+                else
+                        root = &iomem_resource;
+                insert_resource(root, res);
+        }
+}
+
+void __init update_res(struct pci_root_info *info, size_t start,
+                              size_t end, unsigned long flags, int merge)
+{
+        int i;
+        struct resource *res;
+
+        if (start > end)
+                return;
+
+        if (!merge)
+                goto addit;
+
+        /* try to merge it with old one */
+        for (i = 0; i < info->res_num; i++) {
+                size_t final_start, final_end;
+                size_t common_start, common_end;
+
+                res = &info->res[i];
+                if (res->flags != flags)
+                        continue;
+
+                common_start = max((size_t)res->start, start);
+                common_end = min((size_t)res->end, end);
+                if (common_start > common_end + 1)
+                        continue;
+
+                final_start = min((size_t)res->start, start);
+                final_end = max((size_t)res->end, end);
+
+                res->start = final_start;
+                res->end = final_end;
+                return;
+        }
+
+addit:
+
+        /* need to add that */
+        if (info->res_num >= RES_NUM)
+                return;
+
+        res = &info->res[info->res_num];
+        res->name = info->name;
+        res->flags = flags;
+        res->start = start;
+        res->end = end;
+        res->child = NULL;
+        info->res_num++;
+}
diff --git a/arch/x86/pci/bus_numa.h b/arch/x86/pci/bus_numa.h
index 730369f392a3..adbc23fe82ac 100644
--- a/arch/x86/pci/bus_numa.h
+++ b/arch/x86/pci/bus_numa.h
@@ -20,6 +20,7 @@ struct pci_root_info {
 #define PCI_ROOT_NR 4
 extern int pci_root_num;
 extern struct pci_root_info pci_root_info[PCI_ROOT_NR];
+extern int found_all_numa_early;
 
 extern void update_res(struct pci_root_info *info, size_t start,
                               size_t end, unsigned long flags, int merge);