9 files changed, 88 insertions, 28 deletions

diff --git a/arch/i386/kernel/efi.c b/arch/i386/kernel/efi.c
index aeabb4196861..7ec6cfa01fb3 100644
--- a/arch/i386/kernel/efi.c
+++ b/arch/i386/kernel/efi.c
@@ -543,7 +543,7 @@ efi_initialize_iomem_resources(struct resource *code_resource,
                 if ((md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT)) >
                     0x100000000ULL)
                         continue;
-                res = alloc_bootmem_low(sizeof(struct resource));
+                res = kzalloc(sizeof(struct resource), GFP_ATOMIC);
                 switch (md->type) {
                 case EFI_RESERVED_TYPE:
                         res->name = "Reserved Memory";
diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c
index 2d8782960f41..d313a11acafa 100644
--- a/arch/i386/kernel/setup.c
+++ b/arch/i386/kernel/setup.c
@@ -1288,7 +1288,7 @@ legacy_init_iomem_resources(struct resource *code_resource, struct resource *dat
                 struct resource *res;
                 if (e820.map[i].addr + e820.map[i].size > 0x100000000ULL)
                         continue;
-                res = alloc_bootmem_low(sizeof(struct resource));
+                res = kzalloc(sizeof(struct resource), GFP_ATOMIC);
                 switch (e820.map[i].type) {
                 case E820_RAM:  res->name = "System RAM"; break;
                 case E820_ACPI: res->name = "ACPI Tables"; break;
@@ -1316,13 +1316,15 @@ legacy_init_iomem_resources(struct resource *code_resource, struct resource *dat
 
 /*
  * Request address space for all standard resources
+ *
+ * This is called just before pcibios_assign_resources(), which is also
+ * an fs_initcall, but is linked in later (in arch/i386/pci/i386.c).
  */
-static void __init register_memory(void)
+static int __init request_standard_resources(void)
 {
-        unsigned long gapstart, gapsize, round;
-        unsigned long long last;
-        int           i;
+        int i;
 
+        printk("Setting up standard PCI resources\n");
         if (efi_enabled)
                 efi_initialize_iomem_resources(&code_resource, &data_resource);
         else
@@ -1334,6 +1336,16 @@ static void __init register_memory(void)
         /* request I/O space for devices used on all i[345]86 PCs */
         for (i = 0; i < STANDARD_IO_RESOURCES; i++)
                 request_resource(&ioport_resource, &standard_io_resources[i]);
+        return 0;
+}
+
+fs_initcall(request_standard_resources);
+
+static void __init register_memory(void)
+{
+        unsigned long gapstart, gapsize, round;
+        unsigned long long last;
+        int i;
 
         /*
          * Search for the bigest gap in the low 32 bits of the e820
diff --git a/arch/i386/pci/Makefile b/arch/i386/pci/Makefile
index 5461d4d5ea1e..62ad75c57e6a 100644
--- a/arch/i386/pci/Makefile
+++ b/arch/i386/pci/Makefile
@@ -1,4 +1,4 @@
-obj-y                           := i386.o
+obj-y                           := i386.o init.o
 
 obj-$(CONFIG_PCI_BIOS)          += pcbios.o
 obj-$(CONFIG_PCI_MMCONFIG)      += mmconfig.o direct.o
diff --git a/arch/i386/pci/common.c b/arch/i386/pci/common.c
index f6bc48da4d2a..dbece776c5b2 100644
--- a/arch/i386/pci/common.c
+++ b/arch/i386/pci/common.c
@@ -8,6 +8,7 @@
 #include <linux/pci.h>
 #include <linux/ioport.h>
 #include <linux/init.h>
+#include <linux/dmi.h>
 
 #include <asm/acpi.h>
 #include <asm/segment.h>
@@ -120,11 +121,42 @@ void __devinit  pcibios_fixup_bus(struct pci_bus *b)
         pci_read_bridge_bases(b);
 }
 
+/*
+ * Enable renumbering of PCI bus# ranges to reach all PCI busses (Cardbus)
+ */
+#ifdef __i386__
+static int __devinit assign_all_busses(struct dmi_system_id *d)
+{
+        pci_probe |= PCI_ASSIGN_ALL_BUSSES;
+        printk(KERN_INFO "%s detected: enabling PCI bus# renumbering"
+                        " (pci=assign-busses)\n", d->ident);
+        return 0;
+}
+#endif
+
+/*
+ * Laptops which need pci=assign-busses to see Cardbus cards
+ */
+static struct dmi_system_id __devinitdata pciprobe_dmi_table[] = {
+#ifdef __i386__
+        {
+                .callback = assign_all_busses,
+                .ident = "Samsung X20 Laptop",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "Samsung Electronics"),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "SX20S"),
+                },
+        },
+#endif          /* __i386__ */
+        {}
+};
 
 struct pci_bus * __devinit pcibios_scan_root(int busnum)
 {
         struct pci_bus *bus = NULL;
 
+        dmi_check_system(pciprobe_dmi_table);
+
         while ((bus = pci_find_next_bus(bus)) != NULL) {
                 if (bus->number == busnum) {
                         /* Already scanned */
diff --git a/arch/i386/pci/direct.c b/arch/i386/pci/direct.c
index e3ac502bf2fb..99012b93bd12 100644
--- a/arch/i386/pci/direct.c
+++ b/arch/i386/pci/direct.c
@@ -245,7 +245,7 @@ static int __init pci_check_type2(void)
         return works;
 }
 
-static int __init pci_direct_init(void)
+void __init pci_direct_init(void)
 {
         struct resource *region, *region2;
 
@@ -258,16 +258,16 @@ static int __init pci_direct_init(void)
         if (pci_check_type1()) {
                 printk(KERN_INFO "PCI: Using configuration type 1\n");
                 raw_pci_ops = &pci_direct_conf1;
-                return 0;
+                return;
         }
         release_resource(region);
 
  type2:
         if ((pci_probe & PCI_PROBE_CONF2) == 0)
-                goto out;
+                return;
         region = request_region(0xCF8, 4, "PCI conf2");
         if (!region)
-                goto out;
+                return;
         region2 = request_region(0xC000, 0x1000, "PCI conf2");
         if (!region2)
                 goto fail2;
@@ -275,15 +275,10 @@ static int __init pci_direct_init(void)
         if (pci_check_type2()) {
                 printk(KERN_INFO "PCI: Using configuration type 2\n");
                 raw_pci_ops = &pci_direct_conf2;
-                return 0;
+                return;
         }
 
         release_resource(region2);
  fail2:
         release_resource(region);
-
- out:
-        return 0;
 }
-
-arch_initcall(pci_direct_init);
diff --git a/arch/i386/pci/init.c b/arch/i386/pci/init.c
new file mode 100644
index 000000000000..f9156d3ac723
--- /dev/null
+++ b/arch/i386/pci/init.c
@@ -0,0 +1,25 @@
+#include <linux/config.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include "pci.h"
+
+/* arch_initcall has too random ordering, so call the initializers
+   in the right sequence from here. */
+static __init int pci_access_init(void)
+{
+#ifdef CONFIG_PCI_MMCONFIG
+        pci_mmcfg_init();
+#endif
+        if (raw_pci_ops)
+                return 0;
+#ifdef CONFIG_PCI_BIOS
+        pci_pcbios_init();
+#endif
+        if (raw_pci_ops)
+                return 0;
+#ifdef CONFIG_PCI_DIRECT
+        pci_direct_init();
+#endif
+        return 0;
+}
+arch_initcall(pci_access_init);
diff --git a/arch/i386/pci/mmconfig.c b/arch/i386/pci/mmconfig.c
index 0ee8a983708c..613789071f30 100644
--- a/arch/i386/pci/mmconfig.c
+++ b/arch/i386/pci/mmconfig.c
@@ -172,25 +172,20 @@ static __init void unreachable_devices(void)
         }
 }
 
-static int __init pci_mmcfg_init(void)
+void __init pci_mmcfg_init(void)
 {
         if ((pci_probe & PCI_PROBE_MMCONF) == 0)
-                goto out;
+                return;
 
         acpi_table_parse(ACPI_MCFG, acpi_parse_mcfg);
         if ((pci_mmcfg_config_num == 0) ||
             (pci_mmcfg_config == NULL) ||
             (pci_mmcfg_config[0].base_address == 0))
-                goto out;
+                return;
 
         printk(KERN_INFO "PCI: Using MMCONFIG\n");
         raw_pci_ops = &pci_mmcfg;
         pci_probe = (pci_probe & ~PCI_PROBE_MASK) | PCI_PROBE_MMCONF;
 
         unreachable_devices();
-
- out:
-        return 0;
 }
-
-arch_initcall(pci_mmcfg_init);
diff --git a/arch/i386/pci/pcbios.c b/arch/i386/pci/pcbios.c
index b9d65f0bc2d1..1eec0868f4b3 100644
--- a/arch/i386/pci/pcbios.c
+++ b/arch/i386/pci/pcbios.c
@@ -476,14 +476,12 @@ int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq)
 }
 EXPORT_SYMBOL(pcibios_set_irq_routing);
 
-static int __init pci_pcbios_init(void)
+void __init pci_pcbios_init(void)
 {
         if ((pci_probe & PCI_PROBE_BIOS) 
                 && ((raw_pci_ops = pci_find_bios()))) {
                 pci_probe |= PCI_BIOS_SORT;
                 pci_bios_present = 1;
         }
-        return 0;
 }
 
-arch_initcall(pci_pcbios_init);
diff --git a/arch/i386/pci/pci.h b/arch/i386/pci/pci.h
index f550781ec310..12035e29108b 100644
--- a/arch/i386/pci/pci.h
+++ b/arch/i386/pci/pci.h
@@ -80,4 +80,7 @@ extern int pci_conf1_write(unsigned int seg, unsigned int bus,
 extern int pci_conf1_read(unsigned int seg, unsigned int bus,
                           unsigned int devfn, int reg, int len, u32 *value);
 
+extern void pci_direct_init(void);
+extern void pci_pcbios_init(void);
+extern void pci_mmcfg_init(void);