Merge branch 'merge'

7 files changed, 157 insertions, 28 deletions

diff --git a/drivers/pci/hotplug/Kconfig b/drivers/pci/hotplug/Kconfig
index 222a1cc4aa28..3fae77ffb2fa 100644
--- a/drivers/pci/hotplug/Kconfig
+++ b/drivers/pci/hotplug/Kconfig
@@ -6,8 +6,7 @@ menu "PCI Hotplug Support"
 
 config HOTPLUG_PCI
         tristate "Support for PCI Hotplug (EXPERIMENTAL)"
-        depends on PCI && EXPERIMENTAL
-        select HOTPLUG
+        depends on PCI && EXPERIMENTAL && HOTPLUG
         ---help---
           Say Y here if you have a motherboard with a PCI Hotplug controller.
           This allows you to add and remove PCI cards while the machine is
@@ -77,7 +76,7 @@ config HOTPLUG_PCI_IBM
 
 config HOTPLUG_PCI_ACPI
         tristate "ACPI PCI Hotplug driver"
-        depends on ACPI && HOTPLUG_PCI
+        depends on ACPI_DOCK && HOTPLUG_PCI
         help
           Say Y here if you have a system that supports PCI Hotplug using
           ACPI.
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index 36bc7c415af7..a83c1f5735d6 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -47,13 +47,13 @@ msi_register(struct msi_ops *ops)
 
 static void msi_cache_ctor(void *p, kmem_cache_t *cache, unsigned long flags)
 {
-        memset(p, 0, NR_IRQS * sizeof(struct msi_desc));
+        memset(p, 0, sizeof(struct msi_desc));
 }
 
 static int msi_cache_init(void)
 {
         msi_cachep = kmem_cache_create("msi_cache",
-                        NR_IRQS * sizeof(struct msi_desc),
+                        sizeof(struct msi_desc),
                         0, SLAB_HWCACHE_ALIGN, msi_cache_ctor, NULL);
         if (!msi_cachep)
                 return -ENOMEM;
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index cf57d7de3765..9f79dd6d51ab 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -19,6 +19,7 @@
 #include <asm/dma.h>    /* isa_dma_bridge_buggy */
 #include "pci.h"
 
+unsigned int pci_pm_d3_delay = 10;
 
 /**
  * pci_bus_max_busnr - returns maximum PCI bus number of given bus' children
@@ -313,6 +314,14 @@ pci_set_power_state(struct pci_dev *dev, pci_power_t state)
         } else if (dev->current_state == state)
                 return 0;        /* we're already there */
 
+        /*
+         * If the device or the parent bridge can't support PCI PM, ignore
+         * the request if we're doing anything besides putting it into D0
+         * (which would only happen on boot).
+         */
+        if ((state == PCI_D1 || state == PCI_D2) && pci_no_d1d2(dev))
+                return 0;
+
         /* find PCI PM capability in list */
         pm = pci_find_capability(dev, PCI_CAP_ID_PM);
         
@@ -363,7 +372,7 @@ pci_set_power_state(struct pci_dev *dev, pci_power_t state)
         /* Mandatory power management transition delays */
         /* see PCI PM 1.1 5.6.1 table 18 */
         if (state == PCI_D3hot || dev->current_state == PCI_D3hot)
-                msleep(10);
+                msleep(pci_pm_d3_delay);
         else if (state == PCI_D2 || dev->current_state == PCI_D2)
                 udelay(200);
 
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 9cc842b666eb..08d58fc78ee1 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -47,7 +47,7 @@ extern int pci_msi_quirk;
 #else
 #define pci_msi_quirk 0
 #endif
-
+extern unsigned int pci_pm_d3_delay;
 #ifdef CONFIG_PCI_MSI
 void disable_msi_mode(struct pci_dev *dev, int pos, int type);
 void pci_no_msi(void);
@@ -66,7 +66,15 @@ static inline int pci_save_msix_state(struct pci_dev *dev) { return 0; }
 static inline void pci_restore_msi_state(struct pci_dev *dev) {}
 static inline void pci_restore_msix_state(struct pci_dev *dev) {}
 #endif
+static inline int pci_no_d1d2(struct pci_dev *dev)
+{
+        unsigned int parent_dstates = 0;
 
+        if (dev->bus->self)
+                parent_dstates = dev->bus->self->no_d1d2;
+        return (dev->no_d1d2 || parent_dstates);
+
+}
 extern int pcie_mch_quirk;
 extern struct device_attribute pci_dev_attrs[];
 extern struct class_device_attribute class_device_attr_cpuaffinity;
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index f89dbc3738b7..c5a58d1c6c1c 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -815,6 +815,7 @@ pci_scan_device(struct pci_bus *bus, int devfn)
         dev->vendor = l & 0xffff;
         dev->device = (l >> 16) & 0xffff;
         dev->cfg_size = pci_cfg_space_size(dev);
+        dev->error_state = pci_channel_io_normal;
 
         /* Assume 32-bit PCI; let 64-bit PCI cards (which are far rarer)
            set this higher, assuming the system even supports it.  */
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index d1d7333bb71b..e3c78c39b7e4 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -400,6 +400,7 @@ static void __devinit quirk_piix4_acpi(struct pci_dev *dev)
         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 );
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,   PCI_DEVICE_ID_INTEL_82443MX_3,  quirk_piix4_acpi );
 
 /*
  * ICH4, ICH4-M, ICH5, ICH5-M ACPI: Three IO regions pointed to by longwords at
@@ -682,6 +683,33 @@ static void __devinit quirk_vt82c598_id(struct pci_dev *dev)
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA,     PCI_DEVICE_ID_VIA_82C597_0,     quirk_vt82c598_id );
 
+#ifdef CONFIG_ACPI_SLEEP
+
+/*
+ * Some VIA systems boot with the abnormal status flag set. This can cause
+ * the BIOS to re-POST the system on resume rather than passing control
+ * back to the OS.  Clear the flag on boot
+ */
+static void __devinit quirk_via_abnormal_poweroff(struct pci_dev *dev)
+{
+        u32 reg;
+
+        acpi_hw_register_read(ACPI_MTX_DO_NOT_LOCK, ACPI_REGISTER_PM1_STATUS,
+                                &reg);
+
+        if (reg & 0x800) {
+                printk("Clearing abnormal poweroff flag\n");
+                acpi_hw_register_write(ACPI_MTX_DO_NOT_LOCK,
+                                        ACPI_REGISTER_PM1_STATUS,
+                                        (u16)0x800);
+        }
+}
+
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_via_abnormal_poweroff);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_abnormal_poweroff);
+
+#endif
+
 /*
  * CardBus controllers have a legacy base address that enables them
  * to respond as i82365 pcmcia controllers.  We don't want them to
@@ -1174,6 +1202,55 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI,	PCI_DEVICE_ID_SI_962,		quirk_sis_96x_
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI,      PCI_DEVICE_ID_SI_963,           quirk_sis_96x_smbus );
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI,      PCI_DEVICE_ID_SI_LPC,           quirk_sis_96x_smbus );
 
+#if defined(CONFIG_SCSI_SATA) || defined(CONFIG_SCSI_SATA_MODULE)
+
+/*
+ *      If we are using libata we can drive this chip properly but must
+ *      do this early on to make the additional device appear during
+ *      the PCI scanning.
+ */
+
+static void __devinit quirk_jmicron_dualfn(struct pci_dev *pdev)
+{
+        u32 conf;
+        u8 hdr;
+
+        /* Only poke fn 0 */
+        if (PCI_FUNC(pdev->devfn))
+                return;
+
+        switch(pdev->device) {
+                case PCI_DEVICE_ID_JMICRON_JMB365:
+                case PCI_DEVICE_ID_JMICRON_JMB366:
+                        /* Redirect IDE second PATA port to the right spot */
+                        pci_read_config_dword(pdev, 0x80, &conf);
+                        conf |= (1 << 24);
+                        /* Fall through */
+                        pci_write_config_dword(pdev, 0x80, conf);
+                case PCI_DEVICE_ID_JMICRON_JMB361:
+                case PCI_DEVICE_ID_JMICRON_JMB363:
+                        pci_read_config_dword(pdev, 0x40, &conf);
+                        /* Enable dual function mode, AHCI on fn 0, IDE fn1 */
+                        /* Set the class codes correctly and then direct IDE 0 */
+                        conf &= ~0x000F0200;    /* Clear bit 9 and 16-19 */
+                        conf |=  0x00C20002;    /* Set bit 1, 17, 22, 23 */
+                        pci_write_config_dword(pdev, 0x40, conf);
+
+                        /* Reconfigure so that the PCI scanner discovers the
+                           device is now multifunction */
+
+                        pci_read_config_byte(pdev, PCI_HEADER_TYPE, &hdr);
+                        pdev->hdr_type = hdr & 0x7f;
+                        pdev->multifunction = !!(hdr & 0x80);
+
+                        break;
+        }
+}
+
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, quirk_jmicron_dualfn);
+
+#endif
+
 #ifdef CONFIG_X86_IO_APIC
 static void __init quirk_alder_ioapic(struct pci_dev *pdev)
 {
@@ -1341,6 +1418,37 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_PXH_0,	quirk_pc
 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL,    PCI_DEVICE_ID_INTEL_PXH_1,      quirk_pcie_pxh);
 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL,    PCI_DEVICE_ID_INTEL_PXHV,       quirk_pcie_pxh);
 
+/*
+ * Some Intel PCI Express chipsets have trouble with downstream
+ * device power management.
+ */
+static void quirk_intel_pcie_pm(struct pci_dev * dev)
+{
+        pci_pm_d3_delay = 120;
+        dev->no_d1d2 = 1;
+}
+
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,    0x25e2, quirk_intel_pcie_pm);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,    0x25e3, quirk_intel_pcie_pm);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,    0x25e4, quirk_intel_pcie_pm);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,    0x25e5, quirk_intel_pcie_pm);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,    0x25e6, quirk_intel_pcie_pm);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,    0x25e7, quirk_intel_pcie_pm);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,    0x25f7, quirk_intel_pcie_pm);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,    0x25f8, quirk_intel_pcie_pm);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,    0x25f9, quirk_intel_pcie_pm);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,    0x25fa, quirk_intel_pcie_pm);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,    0x2601, quirk_intel_pcie_pm);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,    0x2602, quirk_intel_pcie_pm);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,    0x2603, quirk_intel_pcie_pm);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,    0x2604, quirk_intel_pcie_pm);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,    0x2605, quirk_intel_pcie_pm);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,    0x2606, quirk_intel_pcie_pm);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,    0x2607, quirk_intel_pcie_pm);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,    0x2608, quirk_intel_pcie_pm);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,    0x2609, quirk_intel_pcie_pm);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,    0x260a, quirk_intel_pcie_pm);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,    0x260b, quirk_intel_pcie_pm);
 
 /*
  * Fixup the cardbus bridges on the IBM Dock II docking station
diff --git a/drivers/pci/search.c b/drivers/pci/search.c
index 622b3f8ba820..f8ae2b7db0a7 100644
--- a/drivers/pci/search.c
+++ b/drivers/pci/search.c
@@ -61,7 +61,7 @@ struct pci_bus * __devinit pci_find_bus(int domain, int busnr)
  * @from: Previous PCI bus found, or %NULL for new search.
  *
  * Iterates through the list of known PCI busses.  A new search is
- * initiated by passing %NULL to the @from argument.  Otherwise if
+ * initiated by passing %NULL as the @from argument.  Otherwise if
  * @from is not %NULL, searches continue from next device on the
  * global list.
  */
@@ -148,13 +148,14 @@ struct pci_dev * pci_get_slot(struct pci_bus *bus, unsigned int devfn)
  * @from: Previous PCI device found in search, or %NULL for new search.
  *
  * Iterates through the list of known PCI devices.  If a PCI device is
- * found with a matching @vendor, @device, @ss_vendor and @ss_device, a pointer to its
- * device structure is returned.  Otherwise, %NULL is returned.
- * A new search is initiated by passing %NULL to the @from argument.
- * Otherwise if @from is not %NULL, searches continue from next device on the global list.
+ * found with a matching @vendor, @device, @ss_vendor and @ss_device, a
+ * pointer to its device structure is returned.  Otherwise, %NULL is returned.
+ * A new search is initiated by passing %NULL as the @from argument.
+ * Otherwise if @from is not %NULL, searches continue from next device
+ * on the global list.
  *
- * NOTE: Do not use this function anymore, use pci_get_subsys() instead, as
- * the pci device returned by this function can disappear at any moment in
+ * NOTE: Do not use this function any more; use pci_get_subsys() instead, as
+ * the PCI device returned by this function can disappear at any moment in
  * time.
  */
 static struct pci_dev * pci_find_subsys(unsigned int vendor,
@@ -191,14 +192,15 @@ exit:
  * @device: PCI device id to match, or %PCI_ANY_ID to match all device ids
  * @from: Previous PCI device found in search, or %NULL for new search.
  *
- * Iterates through the list of known PCI devices.  If a PCI device is
- * found with a matching @vendor and @device, a pointer to its device structure is
+ * Iterates through the list of known PCI devices.  If a PCI device is found
+ * with a matching @vendor and @device, a pointer to its device structure is
  * returned.  Otherwise, %NULL is returned.
- * A new search is initiated by passing %NULL to the @from argument.
- * Otherwise if @from is not %NULL, searches continue from next device on the global list.
+ * A new search is initiated by passing %NULL as the @from argument.
+ * Otherwise if @from is not %NULL, searches continue from next device
+ * on the global list.
  * 
- * NOTE: Do not use this function anymore, use pci_get_device() instead, as
- * the pci device returned by this function can disappear at any moment in
+ * NOTE: Do not use this function any more; use pci_get_device() instead, as
+ * the PCI device returned by this function can disappear at any moment in
  * time.
  */
 struct pci_dev *
@@ -215,11 +217,11 @@ pci_find_device(unsigned int vendor, unsigned int device, const struct pci_dev *
  * @ss_device: PCI subsystem device id to match, or %PCI_ANY_ID to match all device ids
  * @from: Previous PCI device found in search, or %NULL for new search.
  *
- * Iterates through the list of known PCI devices.  If a PCI device is
- * found with a matching @vendor, @device, @ss_vendor and @ss_device, a pointer to its
+ * Iterates through the list of known PCI devices.  If a PCI device is found
+ * with a matching @vendor, @device, @ss_vendor and @ss_device, a pointer to its
  * device structure is returned, and the reference count to the device is
  * incremented.  Otherwise, %NULL is returned.  A new search is initiated by
- * passing %NULL to the @from argument.  Otherwise if @from is not %NULL,
+ * passing %NULL as the @from argument.  Otherwise if @from is not %NULL,
  * searches continue from next device on the global list.
  * The reference count for @from is always decremented if it is not %NULL.
  */
@@ -262,7 +264,7 @@ exit:
  * found with a matching @vendor and @device, the reference count to the
  * device is incremented and a pointer to its device structure is returned.
  * Otherwise, %NULL is returned.  A new search is initiated by passing %NULL
- * to the @from argument.  Otherwise if @from is not %NULL, searches continue
+ * as the @from argument.  Otherwise if @from is not %NULL, searches continue
  * from next device on the global list.  The reference count for @from is
  * always decremented if it is not %NULL.
  */
@@ -279,11 +281,13 @@ pci_get_device(unsigned int vendor, unsigned int device, struct pci_dev *from)
  * @device: PCI device id to match, or %PCI_ANY_ID to match all device ids
  * @from: Previous PCI device found in search, or %NULL for new search.
  *
- * Iterates through the list of known PCI devices in the reverse order of pci_find_device().
+ * Iterates through the list of known PCI devices in the reverse order of
+ * pci_find_device().
  * If a PCI device is found with a matching @vendor and @device, a pointer to
  * its device structure is returned.  Otherwise, %NULL is returned.
- * A new search is initiated by passing %NULL to the @from argument.
- * Otherwise if @from is not %NULL, searches continue from previous device on the global list.
+ * A new search is initiated by passing %NULL as the @from argument.
+ * Otherwise if @from is not %NULL, searches continue from previous device
+ * on the global list.
  */
 struct pci_dev *
 pci_find_device_reverse(unsigned int vendor, unsigned int device, const struct pci_dev *from)
@@ -317,7 +321,7 @@ exit:
  * found with a matching @class, the reference count to the device is
  * incremented and a pointer to its device structure is returned.
  * Otherwise, %NULL is returned.
- * A new search is initiated by passing %NULL to the @from argument.
+ * A new search is initiated by passing %NULL as the @from argument.
  * Otherwise if @from is not %NULL, searches continue from next device
  * on the global list.  The reference count for @from is always decremented
  * if it is not %NULL.