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-rw-r--r--arch/i386/kernel/efi.c2
-rw-r--r--arch/i386/kernel/setup.c22
-rw-r--r--arch/i386/pci/Makefile2
-rw-r--r--arch/i386/pci/common.c32
-rw-r--r--arch/i386/pci/direct.c15
-rw-r--r--arch/i386/pci/init.c25
-rw-r--r--arch/i386/pci/mmconfig.c11
-rw-r--r--arch/i386/pci/pcbios.c4
-rw-r--r--arch/i386/pci/pci.h3
9 files changed, 88 insertions, 28 deletions
diff --git a/arch/i386/kernel/efi.c b/arch/i386/kernel/efi.c
index aeabb41..7ec6cfa 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 2d87829..d313a11 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 5461d4d..62ad75c 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 f6bc48d..dbece77 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 e3ac502..99012b9 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 0000000..f9156d3
--- /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 0ee8a98..6137890 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 b9d65f0..1eec086 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 f550781..12035e2 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);
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