From d6505a5236a68c51a77df16bc4e6100b3aee2672 Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Fri, 29 Feb 2008 16:12:18 -0700 Subject: PCI: use dev_printk in quirk messages Convert quirk printks to dev_printk(). Signed-off-by: Bjorn Helgaas Signed-off-by: Greg Kroah-Hartman --- drivers/pci/quirks.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index bbad4a9f264..5a4c7c35ea4 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -1652,9 +1652,8 @@ static void __devinit quirk_via_cx700_pci_parking_caching(struct pci_dev *dev) pci_write_config_byte(dev, 0x75, 0x1); pci_write_config_byte(dev, 0x77, 0x0); - printk(KERN_INFO - "PCI: VIA CX700 PCI parking/caching fixup on %s\n", - pci_name(dev)); + dev_info(&dev->dev, + "Disabling VIA CX700 PCI parking/caching\n"); } } } -- cgit v1.2.3 From 415b6d0e894333d8e5e5a384a483a01b9b782fc7 Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Fri, 29 Feb 2008 16:04:39 -0700 Subject: PCI: consolidate duplicated MSI enable functions Two recent patches added basically the same code to turn on HT MSI mapping: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=6bae1d96c6d7dde078994f6cb98235fd46f8736b http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=9dc625e72309e1c919ea3e7f51d0ffca96123787 There's no need to have both, so this patch removes one copy. Signed-off-by: Bjorn Helgaas Signed-off-by: Greg Kroah-Hartman --- drivers/pci/quirks.c | 36 ++++++------------------------------ 1 file changed, 6 insertions(+), 30 deletions(-) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 5a4c7c35ea4..e9a333d9855 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -1725,32 +1725,6 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT2 quirk_msi_ht_cap); -/* - * Force enable MSI mapping capability on HT bridges - */ -static void __devinit quirk_msi_ht_cap_enable(struct pci_dev *dev) -{ - int pos, ttl = 48; - - pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING); - while (pos && ttl--) { - u8 flags; - - if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS, &flags) == 0) { - printk(KERN_INFO "PCI: Enabling HT MSI Mapping on %s\n", - pci_name(dev)); - - pci_write_config_byte(dev, pos + HT_MSI_FLAGS, - flags | HT_MSI_FLAGS_ENABLE); - } - pos = pci_find_next_ht_capability(dev, pos, - HT_CAPTYPE_MSI_MAPPING); - } -} -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SERVERWORKS, - PCI_DEVICE_ID_SERVERWORKS_HT1000_PXB, - quirk_msi_ht_cap_enable); - /* The nVidia CK804 chipset may have 2 HT MSI mappings. * MSI are supported if the MSI capability set in any of these mappings. */ @@ -1777,9 +1751,8 @@ static void __devinit quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev) DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE, quirk_nvidia_ck804_msi_ht_cap); -/* - * Force enable MSI mapping capability on HT bridges */ -static inline void ht_enable_msi_mapping(struct pci_dev *dev) +/* Force enable MSI mapping capability on HT bridges */ +static void __devinit ht_enable_msi_mapping(struct pci_dev *dev) { int pos, ttl = 48; @@ -1798,6 +1771,9 @@ static inline void ht_enable_msi_mapping(struct pci_dev *dev) HT_CAPTYPE_MSI_MAPPING); } } +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SERVERWORKS, + PCI_DEVICE_ID_SERVERWORKS_HT1000_PXB, + ht_enable_msi_mapping); static void __devinit nv_msi_ht_cap_quirk(struct pci_dev *dev) { @@ -1829,7 +1805,7 @@ static void __devinit nv_msi_ht_cap_quirk(struct pci_dev *dev) if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS, &flags) == 0) { - dev_info(&dev->dev, "Quirk disabling HT MSI mapping"); + dev_info(&dev->dev, "Disabling HT MSI mapping"); pci_write_config_byte(dev, pos + HT_MSI_FLAGS, flags & ~HT_MSI_FLAGS_ENABLE); } -- cgit v1.2.3 From 0ab2b57f8db8a1bcdf24089074f5d2856a3ffb42 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Sun, 17 Feb 2008 10:45:28 +0100 Subject: PCI: fix section mismatch warning in pci_scan_child_bus Fix following warning: WARNING: vmlinux.o(.text+0x47bdb1): Section mismatch in reference from the function pci_scan_child_bus() to the function .devinit.text:pcibios_fixup_bus() We had plenty of functions that could be annotated __devinit but due to the former restriction that exported symbols could not be annotated they were not so. So annotate these function and fix the references from the pci/hotplug/* code to silence the resuting warnings. Signed-off-by: Sam Ravnborg Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug-pci.c | 2 +- drivers/pci/hotplug/acpiphp_glue.c | 2 +- drivers/pci/hotplug/cpci_hotplug_pci.c | 2 +- drivers/pci/hotplug/pciehp_pci.c | 2 +- drivers/pci/hotplug/shpchp_pci.c | 2 +- drivers/pci/probe.c | 8 ++++---- 6 files changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/pci/hotplug-pci.c b/drivers/pci/hotplug-pci.c index a590ef68215..4d4a6447840 100644 --- a/drivers/pci/hotplug-pci.c +++ b/drivers/pci/hotplug-pci.c @@ -4,7 +4,7 @@ #include "pci.h" -unsigned int pci_do_scan_bus(struct pci_bus *bus) +unsigned int __devinit pci_do_scan_bus(struct pci_bus *bus) { unsigned int max; diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c index cf22f9e01e0..5e50008d118 100644 --- a/drivers/pci/hotplug/acpiphp_glue.c +++ b/drivers/pci/hotplug/acpiphp_glue.c @@ -1085,7 +1085,7 @@ static int acpiphp_bus_trim(acpi_handle handle) * This function should be called per *physical slot*, * not per each slot object in ACPI namespace. */ -static int enable_device(struct acpiphp_slot *slot) +static int __ref enable_device(struct acpiphp_slot *slot) { struct pci_dev *dev; struct pci_bus *bus = slot->bridge->pci_bus; diff --git a/drivers/pci/hotplug/cpci_hotplug_pci.c b/drivers/pci/hotplug/cpci_hotplug_pci.c index 5e9be44817c..b3515fc4cd3 100644 --- a/drivers/pci/hotplug/cpci_hotplug_pci.c +++ b/drivers/pci/hotplug/cpci_hotplug_pci.c @@ -250,7 +250,7 @@ int cpci_led_off(struct slot* slot) * Device configuration functions */ -int cpci_configure_slot(struct slot* slot) +int __ref cpci_configure_slot(struct slot *slot) { struct pci_bus *parent; int fn; diff --git a/drivers/pci/hotplug/pciehp_pci.c b/drivers/pci/hotplug/pciehp_pci.c index dd50713966d..9372a840b63 100644 --- a/drivers/pci/hotplug/pciehp_pci.c +++ b/drivers/pci/hotplug/pciehp_pci.c @@ -167,7 +167,7 @@ static void program_fw_provided_values(struct pci_dev *dev) } } -static int pciehp_add_bridge(struct pci_dev *dev) +static int __ref pciehp_add_bridge(struct pci_dev *dev) { struct pci_bus *parent = dev->bus; int pass, busnr, start = parent->secondary; diff --git a/drivers/pci/hotplug/shpchp_pci.c b/drivers/pci/hotplug/shpchp_pci.c index 0a6b25ef194..a69a2152089 100644 --- a/drivers/pci/hotplug/shpchp_pci.c +++ b/drivers/pci/hotplug/shpchp_pci.c @@ -96,7 +96,7 @@ static void program_fw_provided_values(struct pci_dev *dev) } } -int shpchp_configure_device(struct slot *p_slot) +int __ref shpchp_configure_device(struct slot *p_slot) { struct pci_dev *dev; struct pci_bus *parent = p_slot->ctrl->pci_dev->subordinate; diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 4d23b9fb551..2db2e4bb0d1 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -286,7 +286,7 @@ static void pci_read_bases(struct pci_dev *dev, unsigned int howmany, int rom) } } -void pci_read_bridge_bases(struct pci_bus *child) +void __devinit pci_read_bridge_bases(struct pci_bus *child) { struct pci_dev *dev = child->self; u8 io_base_lo, io_limit_lo; @@ -472,7 +472,7 @@ static void pci_fixup_parent_subordinate_busnr(struct pci_bus *child, int max) * them, we proceed to assigning numbers to the remaining buses in * order to avoid overlaps between old and new bus numbers. */ -int pci_scan_bridge(struct pci_bus *bus, struct pci_dev * dev, int max, int pass) +int __devinit pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max, int pass) { struct pci_bus *child; int is_cardbus = (dev->hdr_type == PCI_HEADER_TYPE_CARDBUS); @@ -1008,7 +1008,7 @@ int pci_scan_slot(struct pci_bus *bus, int devfn) return nr; } -unsigned int pci_scan_child_bus(struct pci_bus *bus) +unsigned int __devinit pci_scan_child_bus(struct pci_bus *bus) { unsigned int devfn, pass, max = bus->secondary; struct pci_dev *dev; @@ -1116,7 +1116,7 @@ err_out: return NULL; } -struct pci_bus *pci_scan_bus_parented(struct device *parent, +struct pci_bus * __devinit pci_scan_bus_parented(struct device *parent, int bus, struct pci_ops *ops, void *sysdata) { struct pci_bus *b; -- cgit v1.2.3 From 4725e7bdb831b9d4bd4ba0b0909398ebcf0c2df9 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Mon, 3 Mar 2008 14:47:13 -0800 Subject: PCI: fix up error messages for pci_bus registering Due to the class_device cleanup of pci_bus, the error messages when things go wrong are incorrect. So fix this up to properly report what is really happening, if things go wrong. Thanks to Kay for pointing out the issue. Cc: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- drivers/pci/bus.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c index ef5a6a245f5..6a9403d79e0 100644 --- a/drivers/pci/bus.c +++ b/drivers/pci/bus.c @@ -145,13 +145,15 @@ void pci_bus_add_devices(struct pci_bus *bus) child_bus = dev->subordinate; child_bus->dev.parent = child_bus->bridge; retval = device_register(&child_bus->dev); - if (!retval) + if (retval) + dev_err(&dev->dev, "Error registering pci_bus," + " continuing...\n"); + else retval = device_create_file(&child_bus->dev, &dev_attr_cpuaffinity); if (retval) - dev_err(&dev->dev, "Error registering pci_bus" - " device bridge symlink," - " continuing...\n"); + dev_err(&dev->dev, "Error creating cpuaffinity" + " file, continuing...\n"); } } } -- cgit v1.2.3 From 90a1ba0c5e39eeea278f263c28ae02166c5911c8 Mon Sep 17 00:00:00 2001 From: Jonas Bonn Date: Fri, 22 Feb 2008 11:02:21 +0100 Subject: PCI: Add DECLARE_PCI_DEVICE_TABLE macro The definitions of struct pci_device_id arrays should generally follow the same pattern across the entire kernel. This macro defines this array as const and puts it into the __devinitconst section. There are currently many definitions scattered about the kernel that omit the __devinitdata modifier despite the documentation stating that it should always be there. These definitions really also should have been const, which wasn't possible before but has become so with the addition of the __devinitconst attribute. Furthermore, there are definitions that use "const" and __devinitdata, which is explicitly wrong but the compiler doesn't catch section mismatches if there's only one such one case in the module (which is often the case). Adding the __devinitconst modifier where there was nothing before buys us memory. Adding the const modifier gives the compiler a chance to do its thing. Changing __devinitdata to __devinitconst where it was wrong actually fixes some compiler errors in older (mid-release) kernels that were patched over by "removing" the section attribute altogether (which wastes memory). This macro makes it pretty difficult to get this definition wrong in the future... Signed-off-by: Jonas Bonn Signed-off-by: Greg Kroah-Hartman --- Documentation/pci.txt | 6 ++++-- include/linux/pci.h | 10 ++++++++++ 2 files changed, 14 insertions(+), 2 deletions(-) diff --git a/Documentation/pci.txt b/Documentation/pci.txt index 72b20c63959..bb7bd27d468 100644 --- a/Documentation/pci.txt +++ b/Documentation/pci.txt @@ -123,7 +123,8 @@ initialization with a pointer to a structure describing the driver The ID table is an array of struct pci_device_id entries ending with an -all-zero entry. Each entry consists of: +all-zero entry; use of the macro DECLARE_PCI_DEVICE_TABLE is the preferred +method of declaring the table. Each entry consists of: vendor,device Vendor and device ID to match (or PCI_ANY_ID) @@ -191,7 +192,8 @@ Tips on when/where to use the above attributes: o Do not mark the struct pci_driver. - o The ID table array should be marked __devinitdata. + o The ID table array should be marked __devinitconst; this is done + automatically if the table is declared with DECLARE_PCI_DEVICE_TABLE(). o The probe() and remove() functions should be marked __devinit and __devexit respectively. All initialization functions diff --git a/include/linux/pci.h b/include/linux/pci.h index 87195b62de5..f3165e7ac43 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -388,6 +388,16 @@ struct pci_driver { #define to_pci_driver(drv) container_of(drv, struct pci_driver, driver) +/** + * DECLARE_PCI_DEVICE_TABLE - macro used to describe a pci device table + * @_table: device table name + * + * This macro is used to create a struct pci_device_id array (a device table) + * in a generic manner. + */ +#define DECLARE_PCI_DEVICE_TABLE(_table) \ + const struct pci_device_id _table[] __devinitconst + /** * PCI_DEVICE - macro used to describe a specific pci device * @vend: the 16 bit PCI Vendor ID -- cgit v1.2.3 From c1ef5cbd03921047c2eafb998132e562043678a7 Mon Sep 17 00:00:00 2001 From: Kenji Kaneshige Date: Tue, 4 Mar 2008 13:01:14 -0800 Subject: pci: hotplug: pciehp: fix error code path in hpc_power_off_slot Fix the error code path in hpc_power_off_slot(). The Bad DLLP Mask bit must be restored before return. Signed-off-by: Kenji Kaneshige Signed-off-by: Kristen Carlson Accardi Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug/pciehp_hpc.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c index 6eba9b2cfb9..698975a6a21 100644 --- a/drivers/pci/hotplug/pciehp_hpc.c +++ b/drivers/pci/hotplug/pciehp_hpc.c @@ -711,7 +711,8 @@ static int hpc_power_off_slot(struct slot * slot) retval = pcie_write_cmd(slot, slot_cmd, cmd_mask); if (retval) { err("%s: Write command failed!\n", __FUNCTION__); - return -1; + retval = -1; + goto out; } dbg("%s: SLOTCTRL %x write cmd %x\n", __FUNCTION__, ctrl->cap_base + SLOTCTRL, slot_cmd); @@ -722,7 +723,7 @@ static int hpc_power_off_slot(struct slot * slot) * removed from the slot/adapter. */ msleep(1000); - + out: if (changed) pcie_unmask_bad_dllp(ctrl); -- cgit v1.2.3