8 files changed, 120 insertions, 29 deletions

diff --git a/drivers/pci/.gitignore b/drivers/pci/.gitignore
new file mode 100644
index 000000000000..f297ca8d313e
--- /dev/null
+++ b/drivers/pci/.gitignore
@@ -0,0 +1,4 @@
+classlist.h
+devlist.h
+gen-devlist
+
diff --git a/drivers/pci/hotplug.c b/drivers/pci/hotplug.c
index 10444988a10b..e1743be31909 100644
--- a/drivers/pci/hotplug.c
+++ b/drivers/pci/hotplug.c
@@ -7,7 +7,6 @@ int pci_hotplug (struct device *dev, char **envp, int num_envp,
                  char *buffer, int buffer_size)
 {
         struct pci_dev *pdev;
-        char *scratch;
         int i = 0;
         int length = 0;
 
@@ -18,9 +17,6 @@ int pci_hotplug (struct device *dev, char **envp, int num_envp,
         if (!pdev)
                 return -ENODEV;
 
-        scratch = buffer;
-
-
         if (add_hotplug_env_var(envp, num_envp, &i,
                                 buffer, buffer_size, &length,
                                 "PCI_CLASS=%04X", pdev->class))
diff --git a/drivers/pci/hotplug/rpadlpar_sysfs.c b/drivers/pci/hotplug/rpadlpar_sysfs.c
index 752e6513c447..db69be85b458 100644
--- a/drivers/pci/hotplug/rpadlpar_sysfs.c
+++ b/drivers/pci/hotplug/rpadlpar_sysfs.c
@@ -62,7 +62,7 @@ static ssize_t add_slot_store(struct dlpar_io_attr *dlpar_attr,
         char drc_name[MAX_DRC_NAME_LEN];
         char *end;
 
-        if (nbytes > MAX_DRC_NAME_LEN)
+        if (nbytes >= MAX_DRC_NAME_LEN)
                 return 0;
 
         memcpy(drc_name, buf, nbytes);
@@ -83,7 +83,7 @@ static ssize_t remove_slot_store(struct dlpar_io_attr *dlpar_attr,
         char drc_name[MAX_DRC_NAME_LEN];
         char *end;
 
-        if (nbytes > MAX_DRC_NAME_LEN)
+        if (nbytes >= MAX_DRC_NAME_LEN)
                 return 0;
 
         memcpy(drc_name, buf, nbytes);
diff --git a/drivers/pci/hotplug/sgi_hotplug.c b/drivers/pci/hotplug/sgi_hotplug.c
index b1409441c1cd..a32ae82e5922 100644
--- a/drivers/pci/hotplug/sgi_hotplug.c
+++ b/drivers/pci/hotplug/sgi_hotplug.c
@@ -159,7 +159,7 @@ static int sn_hp_slot_private_alloc(struct hotplug_slot *bss_hotplug_slot,
 
         pcibus_info = SN_PCIBUS_BUSSOFT_INFO(pci_bus);
 
-        slot = kcalloc(1, sizeof(*slot), GFP_KERNEL);
+        slot = kzalloc(sizeof(*slot), GFP_KERNEL);
         if (!slot)
                 return -ENOMEM;
         bss_hotplug_slot->private = slot;
@@ -491,7 +491,7 @@ static int sn_hotplug_slot_register(struct pci_bus *pci_bus)
                 if (sn_pci_slot_valid(pci_bus, device) != 1)
                         continue;
 
-                bss_hotplug_slot = kcalloc(1, sizeof(*bss_hotplug_slot),
+                bss_hotplug_slot = kzalloc(sizeof(*bss_hotplug_slot),
                                            GFP_KERNEL);
                 if (!bss_hotplug_slot) {
                         rc = -ENOMEM;
@@ -499,7 +499,7 @@ static int sn_hotplug_slot_register(struct pci_bus *pci_bus)
                 }
 
                 bss_hotplug_slot->info =
-                        kcalloc(1, sizeof(struct hotplug_slot_info),
+                        kzalloc(sizeof(struct hotplug_slot_info),
                                 GFP_KERNEL);
                 if (!bss_hotplug_slot->info) {
                         rc = -ENOMEM;
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 56a3b397efee..2898830c496f 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -360,7 +360,7 @@ pci_create_resource_files(struct pci_dev *pdev)
                         continue;
 
                 /* allocate attribute structure, piggyback attribute name */
-                res_attr = kcalloc(1, sizeof(*res_attr) + 10, GFP_ATOMIC);
+                res_attr = kzalloc(sizeof(*res_attr) + 10, GFP_ATOMIC);
                 if (res_attr) {
                         char *res_attr_name = (char *)(res_attr + 1);
 
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 26a55d08b506..005786416bb5 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -165,7 +165,7 @@ static void pci_read_bases(struct pci_dev *dev, unsigned int howmany, int rom)
                 if (l == 0xffffffff)
                         l = 0;
                 if ((l & PCI_BASE_ADDRESS_SPACE) == PCI_BASE_ADDRESS_SPACE_MEMORY) {
-                        sz = pci_size(l, sz, PCI_BASE_ADDRESS_MEM_MASK);
+                        sz = pci_size(l, sz, (u32)PCI_BASE_ADDRESS_MEM_MASK);
                         if (!sz)
                                 continue;
                         res->start = l & PCI_BASE_ADDRESS_MEM_MASK;
@@ -215,7 +215,7 @@ static void pci_read_bases(struct pci_dev *dev, unsigned int howmany, int rom)
                 if (l == 0xffffffff)
                         l = 0;
                 if (sz && sz != 0xffffffff) {
-                        sz = pci_size(l, sz, PCI_ROM_ADDRESS_MASK);
+                        sz = pci_size(l, sz, (u32)PCI_ROM_ADDRESS_MASK);
                         if (sz) {
                                 res->flags = (l & IORESOURCE_ROM_ENABLE) |
                                   IORESOURCE_MEM | IORESOURCE_PREFETCH |
@@ -402,6 +402,12 @@ static void pci_enable_crs(struct pci_dev *dev)
 static void __devinit pci_fixup_parent_subordinate_busnr(struct pci_bus *child, int max)
 {
         struct pci_bus *parent = child->parent;
+
+        /* Attempts to fix that up are really dangerous unless
+           we're going to re-assign all bus numbers. */
+        if (!pcibios_assign_all_busses())
+                return;
+
         while (parent->parent && parent->subordinate < max) {
                 parent->subordinate = max;
                 pci_write_config_byte(parent->self, PCI_SUBORDINATE_BUS, max);
@@ -478,8 +484,18 @@ int __devinit pci_scan_bridge(struct pci_bus *bus, struct pci_dev * dev, int max
                  * We need to assign a number to this bus which we always
                  * do in the second pass.
                  */
-                if (!pass)
+                if (!pass) {
+                        if (pcibios_assign_all_busses())
+                                /* Temporarily disable forwarding of the
+                                   configuration cycles on all bridges in
+                                   this bus segment to avoid possible
+                                   conflicts in the second pass between two
+                                   bridges programmed with overlapping
+                                   bus ranges. */
+                                pci_write_config_dword(dev, PCI_PRIMARY_BUS,
+                                                       buses & ~0xffffff);
                         return max;
+                }
 
                 /* Clear errors */
                 pci_write_config_word(dev, PCI_STATUS, 0xffff);
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 11ca44387cb0..7992bc8cc6a4 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -241,7 +241,8 @@ static void __devinit quirk_s3_64M(struct pci_dev *dev)
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3,      PCI_DEVICE_ID_S3_868,           quirk_s3_64M );
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3,      PCI_DEVICE_ID_S3_968,           quirk_s3_64M );
 
-static void __devinit quirk_io_region(struct pci_dev *dev, unsigned region, unsigned size, int nr)
+static void __devinit quirk_io_region(struct pci_dev *dev, unsigned region,
+        unsigned size, int nr, const char *name)
 {
         region &= ~(size-1);
         if (region) {
@@ -259,6 +260,7 @@ static void __devinit quirk_io_region(struct pci_dev *dev, unsigned region, unsi
                 pcibios_bus_to_resource(dev, res, &bus_region);
 
                 pci_claim_resource(dev, nr);
+                printk("PCI quirk: region %04x-%04x claimed by %s\n", region, region + size - 1, name);
         }
 }       
 
@@ -291,25 +293,98 @@ static void __devinit quirk_ali7101_acpi(struct pci_dev *dev)
         u16 region;
 
         pci_read_config_word(dev, 0xE0, &region);
-        quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES);
+        quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "ali7101 ACPI");
         pci_read_config_word(dev, 0xE2, &region);
-        quirk_io_region(dev, region, 32, PCI_BRIDGE_RESOURCES+1);
+        quirk_io_region(dev, region, 32, PCI_BRIDGE_RESOURCES+1, "ali7101 SMB");
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL,      PCI_DEVICE_ID_AL_M7101,         quirk_ali7101_acpi );
 
+static void piix4_io_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable)
+{
+        u32 devres;
+        u32 mask, size, base;
+
+        pci_read_config_dword(dev, port, &devres);
+        if ((devres & enable) != enable)
+                return;
+        mask = (devres >> 16) & 15;
+        base = devres & 0xffff;
+        size = 16;
+        for (;;) {
+                unsigned bit = size >> 1;
+                if ((bit & mask) == bit)
+                        break;
+                size = bit;
+        }
+        /*
+         * For now we only print it out. Eventually we'll want to
+         * reserve it (at least if it's in the 0x1000+ range), but
+         * let's get enough confirmation reports first. 
+         */
+        base &= -size;
+        printk("%s PIO at %04x-%04x\n", name, base, base + size - 1);
+}
+
+static void piix4_mem_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable)
+{
+        u32 devres;
+        u32 mask, size, base;
+
+        pci_read_config_dword(dev, port, &devres);
+        if ((devres & enable) != enable)
+                return;
+        base = devres & 0xffff0000;
+        mask = (devres & 0x3f) << 16;
+        size = 128 << 16;
+        for (;;) {
+                unsigned bit = size >> 1;
+                if ((bit & mask) == bit)
+                        break;
+                size = bit;
+        }
+        /*
+         * For now we only print it out. Eventually we'll want to
+         * reserve it, but let's get enough confirmation reports first. 
+         */
+        base &= -size;
+        printk("%s MMIO at %04x-%04x\n", name, base, base + size - 1);
+}
+
 /*
  * PIIX4 ACPI: Two IO regions pointed to by longwords at
  *      0x40 (64 bytes of ACPI registers)
  *      0x90 (32 bytes of SMB registers)
+ * and a few strange programmable PIIX4 device resources.
  */
 static void __devinit quirk_piix4_acpi(struct pci_dev *dev)
 {
-        u32 region;
+        u32 region, res_a;
 
         pci_read_config_dword(dev, 0x40, &region);
-        quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES);
+        quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "PIIX4 ACPI");
         pci_read_config_dword(dev, 0x90, &region);
-        quirk_io_region(dev, region, 32, PCI_BRIDGE_RESOURCES+1);
+        quirk_io_region(dev, region, 32, PCI_BRIDGE_RESOURCES+1, "PIIX4 SMB");
+
+        /* Device resource A has enables for some of the other ones */
+        pci_read_config_dword(dev, 0x5c, &res_a);
+
+        piix4_io_quirk(dev, "PIIX4 devres B", 0x60, 3 << 21);
+        piix4_io_quirk(dev, "PIIX4 devres C", 0x64, 3 << 21);
+
+        /* Device resource D is just bitfields for static resources */
+
+        /* Device 12 enabled? */
+        if (res_a & (1 << 29)) {
+                piix4_io_quirk(dev, "PIIX4 devres E", 0x68, 1 << 20);
+                piix4_mem_quirk(dev, "PIIX4 devres F", 0x6c, 1 << 7);
+        }
+        /* Device 13 enabled? */
+        if (res_a & (1 << 30)) {
+                piix4_io_quirk(dev, "PIIX4 devres G", 0x70, 1 << 20);
+                piix4_mem_quirk(dev, "PIIX4 devres H", 0x74, 1 << 7);
+        }
+        piix4_io_quirk(dev, "PIIX4 devres I", 0x78, 1 << 20);
+        piix4_io_quirk(dev, "PIIX4 devres J", 0x7c, 1 << 20);
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,   PCI_DEVICE_ID_INTEL_82371AB_3,  quirk_piix4_acpi );
 
@@ -323,10 +398,10 @@ static void __devinit quirk_ich4_lpc_acpi(struct pci_dev *dev)
         u32 region;
 
         pci_read_config_dword(dev, 0x40, &region);
-        quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES);
+        quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES, "ICH4 ACPI/GPIO/TCO");
 
         pci_read_config_dword(dev, 0x58, &region);
-        quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES+1);
+        quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES+1, "ICH4 GPIO");
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,    PCI_DEVICE_ID_INTEL_82801AA_0,         quirk_ich4_lpc_acpi );
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,    PCI_DEVICE_ID_INTEL_82801AB_0,         quirk_ich4_lpc_acpi );
@@ -352,7 +427,7 @@ static void __devinit quirk_vt82c586_acpi(struct pci_dev *dev)
         if (rev & 0x10) {
                 pci_read_config_dword(dev, 0x48, &region);
                 region &= PCI_BASE_ADDRESS_IO_MASK;
-                quirk_io_region(dev, region, 256, PCI_BRIDGE_RESOURCES);
+                quirk_io_region(dev, region, 256, PCI_BRIDGE_RESOURCES, "vt82c586 ACPI");
         }
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA,     PCI_DEVICE_ID_VIA_82C586_3,     quirk_vt82c586_acpi );
@@ -372,11 +447,11 @@ static void __devinit quirk_vt82c686_acpi(struct pci_dev *dev)
 
         pci_read_config_word(dev, 0x70, &hm);
         hm &= PCI_BASE_ADDRESS_IO_MASK;
-        quirk_io_region(dev, hm, 128, PCI_BRIDGE_RESOURCES + 1);
+        quirk_io_region(dev, hm, 128, PCI_BRIDGE_RESOURCES + 1, "vt82c868 HW-mon");
 
         pci_read_config_dword(dev, 0x90, &smb);
         smb &= PCI_BASE_ADDRESS_IO_MASK;
-        quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 2);
+        quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 2, "vt82c868 SMB");
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA,     PCI_DEVICE_ID_VIA_82C686_4,     quirk_vt82c686_acpi );
 
@@ -391,11 +466,11 @@ static void __devinit quirk_vt8235_acpi(struct pci_dev *dev)
 
         pci_read_config_word(dev, 0x88, &pm);
         pm &= PCI_BASE_ADDRESS_IO_MASK;
-        quirk_io_region(dev, pm, 128, PCI_BRIDGE_RESOURCES);
+        quirk_io_region(dev, pm, 128, PCI_BRIDGE_RESOURCES, "vt8235 PM");
 
         pci_read_config_word(dev, 0xd0, &smb);
         smb &= PCI_BASE_ADDRESS_IO_MASK;
-        quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 1);
+        quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 1, "vt8235 SMB");
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA,     PCI_DEVICE_ID_VIA_8235, quirk_vt8235_acpi);
 
@@ -1233,7 +1308,7 @@ static void __init quirk_alder_ioapic(struct pci_dev *pdev)
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,   PCI_DEVICE_ID_INTEL_EESSC,      quirk_alder_ioapic );
 #endif
 
-#ifdef CONFIG_SCSI_SATA
+#ifdef CONFIG_SCSI_SATA_INTEL_COMBINED
 static void __devinit quirk_intel_ide_combined(struct pci_dev *pdev)
 {
         u8 prog, comb, tmp;
@@ -1310,7 +1385,7 @@ static void __devinit quirk_intel_ide_combined(struct pci_dev *pdev)
                 request_region(0x170, 8, "libata");     /* port 1 */
 }
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,    PCI_ANY_ID,       quirk_intel_ide_combined );
-#endif /* CONFIG_SCSI_SATA */
+#endif /* CONFIG_SCSI_SATA_INTEL_COMBINED */
 
 
 int pcie_mch_quirk;
diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 657be948baf7..28ce3a7ee434 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -40,7 +40,7 @@
  * FIXME: IO should be max 256 bytes.  However, since we may
  * have a P2P bridge below a cardbus bridge, we need 4K.
  */
-#define CARDBUS_IO_SIZE         (4*1024)
+#define CARDBUS_IO_SIZE         (256)
 #define CARDBUS_MEM_SIZE        (32*1024*1024)
 
 static void __devinit