diff options
author | Bjorn Helgaas <bhelgaas@google.com> | 2014-02-19 00:02:04 (GMT) |
---|---|---|
committer | Bjorn Helgaas <bhelgaas@google.com> | 2014-02-19 00:02:04 (GMT) |
commit | 94a5f850aead02f02f350d401a43c4bf9a9fbf3a (patch) | |
tree | 14796e071834fc90e45000de3937c7ea96b054bd | |
parent | ec5130ba7907a2ad30a595c7d64fd629c69d3a66 (diff) | |
parent | 1e2571a78138361f74afeb4c5df859b9536b2d8e (diff) | |
download | linux-94a5f850aead02f02f350d401a43c4bf9a9fbf3a.tar.xz |
Merge branch 'pci/misc' into next
* pci/misc:
PCI: Enable INTx if BIOS left them disabled
ia64/PCI: Set IORESOURCE_ROM_SHADOW only for the default VGA device
x86/PCI: Set IORESOURCE_ROM_SHADOW only for the default VGA device
PCI: Update outdated comment for pcibios_bus_report_status()
PCI: Cleanup per-arch list of object files
PCI: cpqphp: Fix hex vs decimal typo in cpqhpc_probe()
x86/PCI: Fix function definition whitespace
x86/PCI: Reword comments
x86/PCI: Remove unnecessary local variable initialization
PCI: Remove unnecessary list_empty(&pci_pme_list) check
-rw-r--r-- | arch/arm/kernel/bios32.c | 2 | ||||
-rw-r--r-- | arch/ia64/pci/fixup.c | 25 | ||||
-rw-r--r-- | arch/x86/pci/acpi.c | 30 | ||||
-rw-r--r-- | arch/x86/pci/fixup.c | 18 | ||||
-rw-r--r-- | drivers/pci/Makefile | 22 | ||||
-rw-r--r-- | drivers/pci/hotplug/cpqphp_core.c | 4 | ||||
-rw-r--r-- | drivers/pci/pci.c | 50 |
7 files changed, 76 insertions, 75 deletions
diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c index 004670e..d0d4678 100644 --- a/arch/arm/kernel/bios32.c +++ b/arch/arm/kernel/bios32.c @@ -19,7 +19,7 @@ static int debug_pci; /* - * We can't use pci_find_device() here since we are + * We can't use pci_get_device() here since we are * called from interrupt context. */ static void pcibios_bus_report_status(struct pci_bus *bus, u_int status_mask, int warn) diff --git a/arch/ia64/pci/fixup.c b/arch/ia64/pci/fixup.c index 5dc969d..eee069a 100644 --- a/arch/ia64/pci/fixup.c +++ b/arch/ia64/pci/fixup.c @@ -5,6 +5,7 @@ #include <linux/pci.h> #include <linux/init.h> +#include <linux/vgaarb.h> #include <asm/machvec.h> @@ -19,9 +20,10 @@ * IORESOURCE_ROM_SHADOW is used to associate the boot video * card with this copy. On laptops this copy has to be used since * the main ROM may be compressed or combined with another image. - * See pci_map_rom() for use of this flag. IORESOURCE_ROM_SHADOW - * is marked here since the boot video device will be the only enabled - * video device at this point. + * See pci_map_rom() for use of this flag. Before marking the device + * with IORESOURCE_ROM_SHADOW check if a vga_default_device is already set + * by either arch cde or vga-arbitration, if so only apply the fixup to this + * already determined primary video card. */ static void pci_fixup_video(struct pci_dev *pdev) @@ -35,9 +37,6 @@ static void pci_fixup_video(struct pci_dev *pdev) return; /* Maybe, this machine supports legacy memory map. */ - if ((pdev->class >> 8) != PCI_CLASS_DISPLAY_VGA) - return; - /* Is VGA routed to us? */ bus = pdev->bus; while (bus) { @@ -60,10 +59,14 @@ static void pci_fixup_video(struct pci_dev *pdev) } bus = bus->parent; } - pci_read_config_word(pdev, PCI_COMMAND, &config); - if (config & (PCI_COMMAND_IO | PCI_COMMAND_MEMORY)) { - pdev->resource[PCI_ROM_RESOURCE].flags |= IORESOURCE_ROM_SHADOW; - dev_printk(KERN_DEBUG, &pdev->dev, "Boot video device\n"); + if (!vga_default_device() || pdev == vga_default_device()) { + pci_read_config_word(pdev, PCI_COMMAND, &config); + if (config & (PCI_COMMAND_IO | PCI_COMMAND_MEMORY)) { + pdev->resource[PCI_ROM_RESOURCE].flags |= IORESOURCE_ROM_SHADOW; + dev_printk(KERN_DEBUG, &pdev->dev, "Boot video device\n"); + vga_set_default_device(pdev); + } } } -DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_video); +DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_ANY_ID, PCI_ANY_ID, + PCI_CLASS_DISPLAY_VGA, 8, pci_fixup_video); diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c index f44a64c..01edac6 100644 --- a/arch/x86/pci/acpi.c +++ b/arch/x86/pci/acpi.c @@ -218,9 +218,8 @@ static void teardown_mcfg_map(struct pci_root_info *info) } #endif -static acpi_status -resource_to_addr(struct acpi_resource *resource, - struct acpi_resource_address64 *addr) +static acpi_status resource_to_addr(struct acpi_resource *resource, + struct acpi_resource_address64 *addr) { acpi_status status; struct acpi_resource_memory24 *memory24; @@ -265,8 +264,7 @@ resource_to_addr(struct acpi_resource *resource, return AE_ERROR; } -static acpi_status -count_resource(struct acpi_resource *acpi_res, void *data) +static acpi_status count_resource(struct acpi_resource *acpi_res, void *data) { struct pci_root_info *info = data; struct acpi_resource_address64 addr; @@ -278,8 +276,7 @@ count_resource(struct acpi_resource *acpi_res, void *data) return AE_OK; } -static acpi_status -setup_resource(struct acpi_resource *acpi_res, void *data) +static acpi_status setup_resource(struct acpi_resource *acpi_res, void *data) { struct pci_root_info *info = data; struct resource *res; @@ -435,9 +432,9 @@ static void release_pci_root_info(struct pci_host_bridge *bridge) __release_pci_root_info(info); } -static void -probe_pci_root_info(struct pci_root_info *info, struct acpi_device *device, - int busnum, int domain) +static void probe_pci_root_info(struct pci_root_info *info, + struct acpi_device *device, + int busnum, int domain) { size_t size; @@ -473,11 +470,11 @@ probe_pci_root_info(struct pci_root_info *info, struct acpi_device *device, struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root) { struct acpi_device *device = root->device; - struct pci_root_info *info = NULL; + struct pci_root_info *info; int domain = root->segment; int busnum = root->secondary.start; LIST_HEAD(resources); - struct pci_bus *bus = NULL; + struct pci_bus *bus; struct pci_sysdata *sd; int node; @@ -509,15 +506,12 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root) sd->domain = domain; sd->node = node; sd->companion = device; - /* - * Maybe the desired pci bus has been already scanned. In such case - * it is unnecessary to scan the pci bus with the given domain,busnum. - */ + bus = pci_find_bus(domain, busnum); if (bus) { /* - * If the desired bus exits, the content of bus->sysdata will - * be replaced by sd. + * If the desired bus has been scanned already, replace + * its bus->sysdata. */ memcpy(bus->sysdata, sd, sizeof(*sd)); kfree(info); diff --git a/arch/x86/pci/fixup.c b/arch/x86/pci/fixup.c index 201833f..94ae9ae 100644 --- a/arch/x86/pci/fixup.c +++ b/arch/x86/pci/fixup.c @@ -313,9 +313,10 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MCH_PC1, pcie_r * IORESOURCE_ROM_SHADOW is used to associate the boot video * card with this copy. On laptops this copy has to be used since * the main ROM may be compressed or combined with another image. - * See pci_map_rom() for use of this flag. IORESOURCE_ROM_SHADOW - * is marked here since the boot video device will be the only enabled - * video device at this point. + * See pci_map_rom() for use of this flag. Before marking the device + * with IORESOURCE_ROM_SHADOW check if a vga_default_device is already set + * by either arch cde or vga-arbitration, if so only apply the fixup to this + * already determined primary video card. */ static void pci_fixup_video(struct pci_dev *pdev) @@ -346,12 +347,13 @@ static void pci_fixup_video(struct pci_dev *pdev) } bus = bus->parent; } - pci_read_config_word(pdev, PCI_COMMAND, &config); - if (config & (PCI_COMMAND_IO | PCI_COMMAND_MEMORY)) { - pdev->resource[PCI_ROM_RESOURCE].flags |= IORESOURCE_ROM_SHADOW; - dev_printk(KERN_DEBUG, &pdev->dev, "Boot video device\n"); - if (!vga_default_device()) + if (!vga_default_device() || pdev == vga_default_device()) { + pci_read_config_word(pdev, PCI_COMMAND, &config); + if (config & (PCI_COMMAND_IO | PCI_COMMAND_MEMORY)) { + pdev->resource[PCI_ROM_RESOURCE].flags |= IORESOURCE_ROM_SHADOW; + dev_printk(KERN_DEBUG, &pdev->dev, "Boot video device\n"); vga_set_default_device(pdev); + } } } DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_ANY_ID, PCI_ANY_ID, diff --git a/drivers/pci/Makefile b/drivers/pci/Makefile index 17d2b07..e2501ac 100644 --- a/drivers/pci/Makefile +++ b/drivers/pci/Makefile @@ -33,21 +33,15 @@ obj-$(CONFIG_PCI_IOV) += iov.o # # Some architectures use the generic PCI setup functions # -obj-$(CONFIG_X86) += setup-bus.o -obj-$(CONFIG_ALPHA) += setup-bus.o setup-irq.o -obj-$(CONFIG_ARM) += setup-bus.o setup-irq.o -obj-$(CONFIG_UNICORE32) += setup-bus.o setup-irq.o -obj-$(CONFIG_PARISC) += setup-bus.o -obj-$(CONFIG_SUPERH) += setup-bus.o setup-irq.o -obj-$(CONFIG_PPC) += setup-bus.o -obj-$(CONFIG_FRV) += setup-bus.o -obj-$(CONFIG_MIPS) += setup-bus.o setup-irq.o +obj-$(CONFIG_ALPHA) += setup-irq.o +obj-$(CONFIG_ARM) += setup-irq.o +obj-$(CONFIG_UNICORE32) += setup-irq.o +obj-$(CONFIG_SUPERH) += setup-irq.o +obj-$(CONFIG_MIPS) += setup-irq.o obj-$(CONFIG_X86_VISWS) += setup-irq.o -obj-$(CONFIG_MN10300) += setup-bus.o -obj-$(CONFIG_MICROBLAZE) += setup-bus.o -obj-$(CONFIG_TILE) += setup-bus.o setup-irq.o -obj-$(CONFIG_SPARC_LEON) += setup-bus.o setup-irq.o -obj-$(CONFIG_M68K) += setup-bus.o setup-irq.o +obj-$(CONFIG_TILE) += setup-irq.o +obj-$(CONFIG_SPARC_LEON) += setup-irq.o +obj-$(CONFIG_M68K) += setup-irq.o # # ACPI Related PCI FW Functions diff --git a/drivers/pci/hotplug/cpqphp_core.c b/drivers/pci/hotplug/cpqphp_core.c index 31273e1..037e261 100644 --- a/drivers/pci/hotplug/cpqphp_core.c +++ b/drivers/pci/hotplug/cpqphp_core.c @@ -920,12 +920,12 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) bus->max_bus_speed = PCI_SPEED_100MHz_PCIX; break; } - if (bus_cap & 20) { + if (bus_cap & 0x20) { dbg("bus max supports 66MHz PCI-X\n"); bus->max_bus_speed = PCI_SPEED_66MHz_PCIX; break; } - if (bus_cap & 10) { + if (bus_cap & 0x10) { dbg("bus max supports 66MHz PCI\n"); bus->max_bus_speed = PCI_SPEED_66MHz; break; diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index e4d45d2..b6ddde1 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -1181,6 +1181,8 @@ EXPORT_SYMBOL_GPL(pci_load_and_free_saved_state); static int do_pci_enable_device(struct pci_dev *dev, int bars) { int err; + u16 cmd; + u8 pin; err = pci_set_power_state(dev, PCI_D0); if (err < 0 && err != -EIO) @@ -1190,6 +1192,14 @@ static int do_pci_enable_device(struct pci_dev *dev, int bars) return err; pci_fixup_device(pci_fixup_enable, dev); + pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin); + if (pin) { + pci_read_config_word(dev, PCI_COMMAND, &cmd); + if (cmd & PCI_COMMAND_INTX_DISABLE) + pci_write_config_word(dev, PCI_COMMAND, + cmd & ~PCI_COMMAND_INTX_DISABLE); + } + return 0; } @@ -1611,29 +1621,27 @@ static void pci_pme_list_scan(struct work_struct *work) struct pci_pme_device *pme_dev, *n; mutex_lock(&pci_pme_list_mutex); - if (!list_empty(&pci_pme_list)) { - list_for_each_entry_safe(pme_dev, n, &pci_pme_list, list) { - if (pme_dev->dev->pme_poll) { - struct pci_dev *bridge; - - bridge = pme_dev->dev->bus->self; - /* - * If bridge is in low power state, the - * configuration space of subordinate devices - * may be not accessible - */ - if (bridge && bridge->current_state != PCI_D0) - continue; - pci_pme_wakeup(pme_dev->dev, NULL); - } else { - list_del(&pme_dev->list); - kfree(pme_dev); - } + list_for_each_entry_safe(pme_dev, n, &pci_pme_list, list) { + if (pme_dev->dev->pme_poll) { + struct pci_dev *bridge; + + bridge = pme_dev->dev->bus->self; + /* + * If bridge is in low power state, the + * configuration space of subordinate devices + * may be not accessible + */ + if (bridge && bridge->current_state != PCI_D0) + continue; + pci_pme_wakeup(pme_dev->dev, NULL); + } else { + list_del(&pme_dev->list); + kfree(pme_dev); } - if (!list_empty(&pci_pme_list)) - schedule_delayed_work(&pci_pme_work, - msecs_to_jiffies(PME_TIMEOUT)); } + if (!list_empty(&pci_pme_list)) + schedule_delayed_work(&pci_pme_work, + msecs_to_jiffies(PME_TIMEOUT)); mutex_unlock(&pci_pme_list_mutex); } |