diff options
| -rw-r--r-- | arch/arc/kernel/Makefile | 1 | ||||
| -rw-r--r-- | arch/arc/kernel/pcibios.c | 22 | ||||
| -rw-r--r-- | arch/arm64/kernel/pci.c | 17 | ||||
| -rw-r--r-- | arch/cris/arch-v32/drivers/pci/bios.c | 4 | ||||
| -rw-r--r-- | arch/ia64/pci/pci.c | 7 | ||||
| -rw-r--r-- | arch/microblaze/include/asm/pci.h | 3 | ||||
| -rw-r--r-- | arch/microblaze/pci/pci-common.c | 145 | ||||
| -rw-r--r-- | arch/s390/pci/pci.c | 4 | ||||
| -rw-r--r-- | arch/sh/drivers/pci/pci.c | 8 | ||||
| -rw-r--r-- | arch/sparc/kernel/leon_pci.c | 6 | ||||
| -rw-r--r-- | arch/sparc/kernel/pci.c | 10 | ||||
| -rw-r--r-- | arch/sparc/kernel/pcic.c | 6 | ||||
| -rw-r--r-- | arch/tile/kernel/pci.c | 18 | ||||
| -rw-r--r-- | arch/tile/kernel/pci_gx.c | 14 | ||||
| -rw-r--r-- | drivers/pci/probe.c | 9 | ||||
| -rw-r--r-- | drivers/pci/setup-res.c | 13 |
16 files changed, 22 insertions, 265 deletions
diff --git a/arch/arc/kernel/Makefile b/arch/arc/kernel/Makefile index 8942c5c3b4c5..2dc5f4296d44 100644 --- a/arch/arc/kernel/Makefile +++ b/arch/arc/kernel/Makefile @@ -12,7 +12,6 @@ obj-y := arcksyms.o setup.o irq.o reset.o ptrace.o process.o devtree.o obj-y += signal.o traps.o sys.o troubleshoot.o stacktrace.o disasm.o obj-$(CONFIG_ISA_ARCOMPACT) += entry-compact.o intc-compact.o obj-$(CONFIG_ISA_ARCV2) += entry-arcv2.o intc-arcv2.o -obj-$(CONFIG_PCI) += pcibios.o obj-$(CONFIG_MODULES) += arcksyms.o module.o obj-$(CONFIG_SMP) += smp.o diff --git a/arch/arc/kernel/pcibios.c b/arch/arc/kernel/pcibios.c deleted file mode 100644 index 72e1d73d0bd6..000000000000 --- a/arch/arc/kernel/pcibios.c +++ /dev/null @@ -1,22 +0,0 @@ -/* - * Copyright (C) 2014-2015 Synopsys, Inc. (www.synopsys.com) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/pci.h> - -/* - * We don't have to worry about legacy ISA devices, so nothing to do here - */ -resource_size_t pcibios_align_resource(void *data, const struct resource *res, - resource_size_t size, resource_size_t align) -{ - return res->start; -} - -void pcibios_fixup_bus(struct pci_bus *bus) -{ -} diff --git a/arch/arm64/kernel/pci.c b/arch/arm64/kernel/pci.c index e2b7e4f9cc31..0e2ea1c78542 100644 --- a/arch/arm64/kernel/pci.c +++ b/arch/arm64/kernel/pci.c @@ -22,23 +22,6 @@ #include <linux/pci-ecam.h> #include <linux/slab.h> -/* - * Called after each bus is probed, but before its children are examined - */ -void pcibios_fixup_bus(struct pci_bus *bus) -{ - /* nothing to do, expected to be removed in the future */ -} - -/* - * We don't have to worry about legacy ISA devices, so nothing to do here - */ -resource_size_t pcibios_align_resource(void *data, const struct resource *res, - resource_size_t size, resource_size_t align) -{ - return res->start; -} - #ifdef CONFIG_ACPI /* * Try to assign the IRQ number when probing a new device diff --git a/arch/cris/arch-v32/drivers/pci/bios.c b/arch/cris/arch-v32/drivers/pci/bios.c index 394c2a73d5e2..5cc622c0225e 100644 --- a/arch/cris/arch-v32/drivers/pci/bios.c +++ b/arch/cris/arch-v32/drivers/pci/bios.c @@ -2,10 +2,6 @@ #include <linux/kernel.h> #include <hwregs/intr_vect.h> -void pcibios_fixup_bus(struct pci_bus *b) -{ -} - void pcibios_set_master(struct pci_dev *dev) { u8 lat; diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c index 4068bde623dc..f5ec736100ee 100644 --- a/arch/ia64/pci/pci.c +++ b/arch/ia64/pci/pci.c @@ -411,13 +411,6 @@ pcibios_disable_device (struct pci_dev *dev) acpi_pci_irq_disable(dev); } -resource_size_t -pcibios_align_resource (void *data, const struct resource *res, - resource_size_t size, resource_size_t align) -{ - return res->start; -} - /** * ia64_pci_get_legacy_mem - generic legacy mem routine * @bus: bus to get legacy memory base address for diff --git a/arch/microblaze/include/asm/pci.h b/arch/microblaze/include/asm/pci.h index efd4983cb697..114b93488193 100644 --- a/arch/microblaze/include/asm/pci.h +++ b/arch/microblaze/include/asm/pci.h @@ -81,9 +81,6 @@ extern pgprot_t pci_phys_mem_access_prot(struct file *file, #define HAVE_ARCH_PCI_RESOURCE_TO_USER -extern void pcibios_setup_bus_devices(struct pci_bus *bus); -extern void pcibios_setup_bus_self(struct pci_bus *bus); - /* This part of code was originally in xilinx-pci.h */ #ifdef CONFIG_PCI_XILINX extern void __init xilinx_pci_init(void); diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c index 404fb38d06b7..2b32c454a22e 100644 --- a/arch/microblaze/pci/pci-common.c +++ b/arch/microblaze/pci/pci-common.c @@ -678,144 +678,6 @@ static void pcibios_fixup_resources(struct pci_dev *dev) } DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pcibios_fixup_resources); -/* This function tries to figure out if a bridge resource has been initialized - * by the firmware or not. It doesn't have to be absolutely bullet proof, but - * things go more smoothly when it gets it right. It should covers cases such - * as Apple "closed" bridge resources and bare-metal pSeries unassigned bridges - */ -static int pcibios_uninitialized_bridge_resource(struct pci_bus *bus, - struct resource *res) -{ - struct pci_controller *hose = pci_bus_to_host(bus); - struct pci_dev *dev = bus->self; - resource_size_t offset; - u16 command; - int i; - - /* Job is a bit different between memory and IO */ - if (res->flags & IORESOURCE_MEM) { - /* If the BAR is non-0 (res != pci_mem_offset) then it's - * probably been initialized by somebody - */ - if (res->start != hose->pci_mem_offset) - return 0; - - /* The BAR is 0, let's check if memory decoding is enabled on - * the bridge. If not, we consider it unassigned - */ - pci_read_config_word(dev, PCI_COMMAND, &command); - if ((command & PCI_COMMAND_MEMORY) == 0) - return 1; - - /* Memory decoding is enabled and the BAR is 0. If any of - * the bridge resources covers that starting address (0 then - * it's good enough for us for memory - */ - for (i = 0; i < 3; i++) { - if ((hose->mem_resources[i].flags & IORESOURCE_MEM) && - hose->mem_resources[i].start == hose->pci_mem_offset) - return 0; - } - - /* Well, it starts at 0 and we know it will collide so we may as - * well consider it as unassigned. That covers the Apple case. - */ - return 1; - } else { - /* If the BAR is non-0, then we consider it assigned */ - offset = (unsigned long)hose->io_base_virt - _IO_BASE; - if (((res->start - offset) & 0xfffffffful) != 0) - return 0; - - /* Here, we are a bit different than memory as typically IO - * space starting at low addresses -is- valid. What we do - * instead if that we consider as unassigned anything that - * doesn't have IO enabled in the PCI command register, - * and that's it. - */ - pci_read_config_word(dev, PCI_COMMAND, &command); - if (command & PCI_COMMAND_IO) - return 0; - - /* It's starting at 0 and IO is disabled in the bridge, consider - * it unassigned - */ - return 1; - } -} - -/* Fixup resources of a PCI<->PCI bridge */ -static void pcibios_fixup_bridge(struct pci_bus *bus) -{ - struct resource *res; - int i; - - struct pci_dev *dev = bus->self; - - pci_bus_for_each_resource(bus, res, i) { - if (!res) - continue; - if (!res->flags) - continue; - if (i >= 3 && bus->self->transparent) - continue; - - pr_debug("PCI:%s Bus rsrc %d %016llx-%016llx [%x] fixup...\n", - pci_name(dev), i, - (unsigned long long)res->start, - (unsigned long long)res->end, - (unsigned int)res->flags); - - /* Try to detect uninitialized P2P bridge resources, - * and clear them out so they get re-assigned later - */ - if (pcibios_uninitialized_bridge_resource(bus, res)) { - res->flags = 0; - pr_debug("PCI:%s (unassigned)\n", - pci_name(dev)); - } else { - pr_debug("PCI:%s %016llx-%016llx\n", - pci_name(dev), - (unsigned long long)res->start, - (unsigned long long)res->end); - } - } -} - -void pcibios_setup_bus_self(struct pci_bus *bus) -{ - /* Fix up the bus resources for P2P bridges */ - if (bus->self != NULL) - pcibios_fixup_bridge(bus); -} - -void pcibios_setup_bus_devices(struct pci_bus *bus) -{ - struct pci_dev *dev; - - pr_debug("PCI: Fixup bus devices %d (%s)\n", - bus->number, bus->self ? pci_name(bus->self) : "PHB"); - - list_for_each_entry(dev, &bus->devices, bus_list) { - /* Setup OF node pointer in archdata */ - dev->dev.of_node = pci_device_to_OF_node(dev); - - /* Fixup NUMA node as it may not be setup yet by the generic - * code and is needed by the DMA init - */ - set_dev_node(&dev->dev, pcibus_to_node(dev->bus)); - - /* Read default IRQs and fixup if necessary */ - dev->irq = of_irq_parse_and_map_pci(dev, 0, 0); - } -} - -void pcibios_fixup_bus(struct pci_bus *bus) -{ - /* nothing to do */ -} -EXPORT_SYMBOL(pcibios_fixup_bus); - /* * We need to avoid collisions with `mirrored' VGA ports * and other strange ISA hardware, so we always want the @@ -829,13 +691,6 @@ EXPORT_SYMBOL(pcibios_fixup_bus); * but we want to try to avoid allocating at 0x2900-0x2bff * which might have be mirrored at 0x0100-0x03ff.. */ -resource_size_t pcibios_align_resource(void *data, const struct resource *res, - resource_size_t size, resource_size_t align) -{ - return res->start; -} -EXPORT_SYMBOL(pcibios_align_resource); - int pcibios_add_device(struct pci_dev *dev) { dev->irq = of_irq_parse_and_map_pci(dev, 0, 0); diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c index 7b30af5da222..ddb9923fb45d 100644 --- a/arch/s390/pci/pci.c +++ b/arch/s390/pci/pci.c @@ -262,10 +262,6 @@ static int zpci_cfg_store(struct zpci_dev *zdev, int offset, u32 val, u8 len) return rc; } -void pcibios_fixup_bus(struct pci_bus *bus) -{ -} - resource_size_t pcibios_align_resource(void *data, const struct resource *res, resource_size_t size, resource_size_t align) diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c index 357278c88e98..5976a2c8a3e3 100644 --- a/arch/sh/drivers/pci/pci.c +++ b/arch/sh/drivers/pci/pci.c @@ -164,14 +164,6 @@ static int __init pcibios_init(void) subsys_initcall(pcibios_init); /* - * Called after each bus is probed, but before its children - * are examined. - */ -void pcibios_fixup_bus(struct pci_bus *bus) -{ -} - -/* * We need to avoid collisions with `mirrored' VGA ports * and other strange ISA hardware, so we always want the * addresses to be allocated in the 0x000-0x0ff region diff --git a/arch/sparc/kernel/leon_pci.c b/arch/sparc/kernel/leon_pci.c index 7b5c7072b006..98c223edac84 100644 --- a/arch/sparc/kernel/leon_pci.c +++ b/arch/sparc/kernel/leon_pci.c @@ -106,9 +106,3 @@ void pcibios_fixup_bus(struct pci_bus *pbus) } } } - -resource_size_t pcibios_align_resource(void *data, const struct resource *res, - resource_size_t size, resource_size_t align) -{ - return res->start; -} diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c index 7eceaa10836f..3f8670c92951 100644 --- a/arch/sparc/kernel/pci.c +++ b/arch/sparc/kernel/pci.c @@ -690,16 +690,6 @@ struct pci_bus *pci_scan_one_pbm(struct pci_pbm_info *pbm, return bus; } -void pcibios_fixup_bus(struct pci_bus *pbus) -{ -} - -resource_size_t pcibios_align_resource(void *data, const struct resource *res, - resource_size_t size, resource_size_t align) -{ - return res->start; -} - int pcibios_enable_device(struct pci_dev *dev, int mask) { u16 cmd, oldcmd; diff --git a/arch/sparc/kernel/pcic.c b/arch/sparc/kernel/pcic.c index a38787b84322..e038e343f2c1 100644 --- a/arch/sparc/kernel/pcic.c +++ b/arch/sparc/kernel/pcic.c @@ -746,12 +746,6 @@ static void watchdog_reset() { } #endif -resource_size_t pcibios_align_resource(void *data, const struct resource *res, - resource_size_t size, resource_size_t align) -{ - return res->start; -} - int pcibios_enable_device(struct pci_dev *pdev, int mask) { return 0; diff --git a/arch/tile/kernel/pci.c b/arch/tile/kernel/pci.c index 884826157765..bbf81579b1f8 100644 --- a/arch/tile/kernel/pci.c +++ b/arch/tile/kernel/pci.c @@ -67,16 +67,6 @@ static struct pci_ops tile_cfg_ops; /* - * We don't need to worry about the alignment of resources. - */ -resource_size_t pcibios_align_resource(void *data, const struct resource *res, - resource_size_t size, resource_size_t align) -{ - return res->start; -} -EXPORT_SYMBOL(pcibios_align_resource); - -/* * Open a FD to the hypervisor PCI device. * * controller_id is the controller number, config type is 0 or 1 for @@ -380,14 +370,6 @@ int __init pcibios_init(void) } subsys_initcall(pcibios_init); -/* - * No bus fixups needed. - */ -void pcibios_fixup_bus(struct pci_bus *bus) -{ - /* Nothing needs to be done. */ -} - void pcibios_set_master(struct pci_dev *dev) { /* No special bus mastering setup handling. */ diff --git a/arch/tile/kernel/pci_gx.c b/arch/tile/kernel/pci_gx.c index e68317083ac7..9aa238ac7b35 100644 --- a/arch/tile/kernel/pci_gx.c +++ b/arch/tile/kernel/pci_gx.c @@ -108,15 +108,6 @@ static struct pci_ops tile_cfg_ops; /* Mask of CPUs that should receive PCIe interrupts. */ static struct cpumask intr_cpus_map; -/* We don't need to worry about the alignment of resources. */ -resource_size_t pcibios_align_resource(void *data, const struct resource *res, - resource_size_t size, - resource_size_t align) -{ - return res->start; -} -EXPORT_SYMBOL(pcibios_align_resource); - /* * Pick a CPU to receive and handle the PCIe interrupts, based on the IRQ #. * For now, we simply send interrupts to non-dataplane CPUs. @@ -1049,11 +1040,6 @@ alloc_mem_map_failed: } subsys_initcall(pcibios_init); -/* No bus fixups needed. */ -void pcibios_fixup_bus(struct pci_bus *bus) -{ -} - /* Process any "pci=" kernel boot arguments. */ char *__init pcibios_setup(char *str) { diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 9b8a445b9294..e03f95bd1b59 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -2344,6 +2344,15 @@ void pcie_bus_configure_settings(struct pci_bus *bus) } EXPORT_SYMBOL_GPL(pcie_bus_configure_settings); +/* + * Called after each bus is probed, but before its children are examined. This + * is marked as __weak because multiple architectures define it. + */ +void __weak pcibios_fixup_bus(struct pci_bus *bus) +{ + /* nothing to do, expected to be removed in the future */ +} + unsigned int pci_scan_child_bus(struct pci_bus *bus) { unsigned int devfn, pass, max = bus->busn_res.start; diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c index 85774b7a316a..e576e1a8d978 100644 --- a/drivers/pci/setup-res.c +++ b/drivers/pci/setup-res.c @@ -234,6 +234,19 @@ static int pci_revert_fw_address(struct resource *res, struct pci_dev *dev, return 0; } +/* + * We don't have to worry about legacy ISA devices, so nothing to do here. + * This is marked as __weak because multiple architectures define it; it should + * eventually go away. + */ +resource_size_t __weak pcibios_align_resource(void *data, + const struct resource *res, + resource_size_t size, + resource_size_t align) +{ + return res->start; +} + static int __pci_assign_resource(struct pci_bus *bus, struct pci_dev *dev, int resno, resource_size_t size, resource_size_t align) { |