summaryrefslogtreecommitdiffstats
path: root/drivers/pci
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/hotplug/Kconfig5
-rw-r--r--drivers/pci/msi.c4
-rw-r--r--drivers/pci/pci.c11
-rw-r--r--drivers/pci/pci.h10
-rw-r--r--drivers/pci/probe.c1
-rw-r--r--drivers/pci/quirks.c108
-rw-r--r--drivers/pci/search.c46
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.
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-13 14:29:04 +0000