From 151d16d531c5bc60bad9dc62102be18f11b4280a Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Thu, 23 Feb 2012 20:18:56 -0700 Subject: alpha/PCI: replace pci_probe_only with pci_flags Some architectures (alpha, mips, powerpc) have an arch-specific "pci_probe_only" flag. Others use PCI_PROBE_ONLY in pci_flags for the same purpose. This moves alpha to the pci_flags approach so generic code can use the same test across all architectures. CC: linux-alpha@vger.kernel.org Signed-off-by: Bjorn Helgaas --- arch/alpha/include/asm/pci.h | 1 + arch/alpha/kernel/pci.c | 15 +++++++-------- arch/alpha/kernel/pci_impl.h | 3 --- arch/alpha/kernel/sys_marvel.c | 3 ++- arch/alpha/kernel/sys_titan.c | 3 ++- 5 files changed, 12 insertions(+), 13 deletions(-) (limited to 'arch/alpha') diff --git a/arch/alpha/include/asm/pci.h b/arch/alpha/include/asm/pci.h index 28d0497fd3c..6a3fe070462 100644 --- a/arch/alpha/include/asm/pci.h +++ b/arch/alpha/include/asm/pci.h @@ -7,6 +7,7 @@ #include #include #include +#include /* * The following structure is used to manage multiple PCI busses. diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c index 8c723c1b086..3a5cdf2a8fd 100644 --- a/arch/alpha/kernel/pci.c +++ b/arch/alpha/kernel/pci.c @@ -43,12 +43,10 @@ const char *const pci_mem_names[] = { const char pci_hae0_name[] = "HAE0"; -/* Indicate whether we respect the PCI setup left by console. */ /* - * Make this long-lived so that we know when shutting down - * whether we probed only or not. + * If PCI_PROBE_ONLY in pci_flags is set, we don't change any PCI resource + * assignments. */ -int pci_probe_only; /* * The PCI controller list. @@ -215,7 +213,7 @@ pdev_save_srm_config(struct pci_dev *dev) struct pdev_srm_saved_conf *tmp; static int printed = 0; - if (!alpha_using_srm || pci_probe_only) + if (!alpha_using_srm || pci_has_flag(PCI_PROBE_ONLY)) return; if (!printed) { @@ -242,7 +240,7 @@ pci_restore_srm_config(void) struct pdev_srm_saved_conf *tmp; /* No need to restore if probed only. */ - if (pci_probe_only) + if (pci_has_flag(PCI_PROBE_ONLY)) return; /* Restore SRM config. */ @@ -283,7 +281,7 @@ pcibios_fixup_bus(struct pci_bus *bus) { struct pci_dev *dev = bus->self; - if (pci_probe_only && dev && + if (pci_has_flag(PCI_PROBE_ONLY) && dev && (dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) { pci_read_bridge_bases(bus); pcibios_fixup_device_resources(dev, bus); @@ -374,7 +372,8 @@ pcibios_claim_one_bus(struct pci_bus *b) if (r->parent || !r->start || !r->flags) continue; - if (pci_probe_only || (r->flags & IORESOURCE_PCI_FIXED)) + if (pci_has_flag(PCI_PROBE_ONLY) || + (r->flags & IORESOURCE_PCI_FIXED)) pci_claim_resource(dev, i); } } diff --git a/arch/alpha/kernel/pci_impl.h b/arch/alpha/kernel/pci_impl.h index 85457b2d451..2b0ac429f5e 100644 --- a/arch/alpha/kernel/pci_impl.h +++ b/arch/alpha/kernel/pci_impl.h @@ -173,9 +173,6 @@ extern void pci_restore_srm_config(void); extern struct pci_controller *hose_head, **hose_tail; extern struct pci_controller *pci_isa_hose; -/* Indicate that we trust the console to configure things properly. */ -extern int pci_probe_only; - extern unsigned long alpha_agpgart_size; extern void common_init_pci(void); diff --git a/arch/alpha/kernel/sys_marvel.c b/arch/alpha/kernel/sys_marvel.c index 95cfc83ece8..fc8b1250861 100644 --- a/arch/alpha/kernel/sys_marvel.c +++ b/arch/alpha/kernel/sys_marvel.c @@ -384,7 +384,8 @@ marvel_init_pci(void) marvel_register_error_handlers(); - pci_probe_only = 1; + /* Indicate that we trust the console to configure things properly */ + pci_set_flags(PCI_PROBE_ONLY); common_init_pci(); locate_and_init_vga(NULL); diff --git a/arch/alpha/kernel/sys_titan.c b/arch/alpha/kernel/sys_titan.c index f47b30a2a11..b8eafa05353 100644 --- a/arch/alpha/kernel/sys_titan.c +++ b/arch/alpha/kernel/sys_titan.c @@ -331,7 +331,8 @@ titan_init_pci(void) */ titan_late_init(); - pci_probe_only = 1; + /* Indicate that we trust the console to configure things properly */ + pci_set_flags(PCI_PROBE_ONLY); common_init_pci(); SMC669_Init(0); locate_and_init_vga(NULL); -- cgit v1.2.3-70-g09d2 From c04d9e35790013606f18cf56db07f80c3a339608 Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Thu, 23 Feb 2012 20:19:01 -0700 Subject: alpha/PCI: get rid of device resource fixups Tell the PCI core about host bridge address translation so it can take care of bus-to-resource conversion for us. CC: linux-alpha@vger.kernel.org Signed-off-by: Bjorn Helgaas --- arch/alpha/include/asm/pci.h | 6 +--- arch/alpha/kernel/pci.c | 71 +++----------------------------------------- 2 files changed, 5 insertions(+), 72 deletions(-) (limited to 'arch/alpha') diff --git a/arch/alpha/include/asm/pci.h b/arch/alpha/include/asm/pci.h index 6a3fe070462..121c797eb14 100644 --- a/arch/alpha/include/asm/pci.h +++ b/arch/alpha/include/asm/pci.h @@ -100,11 +100,7 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) return channel ? 15 : 14; } -extern void pcibios_resource_to_bus(struct pci_dev *, struct pci_bus_region *, - struct resource *); - -extern void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res, - struct pci_bus_region *region); +#define ARCH_HAS_GENERIC_PCI_OFFSETS #define pci_domain_nr(bus) ((struct pci_controller *)(bus)->sysdata)->index diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c index 3a5cdf2a8fd..1a629636cc1 100644 --- a/arch/alpha/kernel/pci.c +++ b/arch/alpha/kernel/pci.c @@ -250,32 +250,6 @@ pci_restore_srm_config(void) } #endif -void __devinit -pcibios_fixup_resource(struct resource *res, struct resource *root) -{ - res->start += root->start; - res->end += root->start; -} - -void __devinit -pcibios_fixup_device_resources(struct pci_dev *dev, struct pci_bus *bus) -{ - /* Update device resources. */ - struct pci_controller *hose = (struct pci_controller *)bus->sysdata; - int i; - - for (i = 0; i < PCI_NUM_RESOURCES; i++) { - if (!dev->resource[i].start) - continue; - if (dev->resource[i].flags & IORESOURCE_IO) - pcibios_fixup_resource(&dev->resource[i], - hose->io_space); - else if (dev->resource[i].flags & IORESOURCE_MEM) - pcibios_fixup_resource(&dev->resource[i], - hose->mem_space); - } -} - void __devinit pcibios_fixup_bus(struct pci_bus *bus) { @@ -284,13 +258,10 @@ pcibios_fixup_bus(struct pci_bus *bus) if (pci_has_flag(PCI_PROBE_ONLY) && dev && (dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) { pci_read_bridge_bases(bus); - pcibios_fixup_device_resources(dev, bus); } list_for_each_entry(dev, &bus->devices, bus_list) { pdev_save_srm_config(dev); - if ((dev->class >> 8) != PCI_CLASS_BRIDGE_PCI) - pcibios_fixup_device_resources(dev, bus); } } @@ -300,42 +271,6 @@ pcibios_update_irq(struct pci_dev *dev, int irq) pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq); } -void -pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region, - struct resource *res) -{ - struct pci_controller *hose = (struct pci_controller *)dev->sysdata; - unsigned long offset = 0; - - if (res->flags & IORESOURCE_IO) - offset = hose->io_space->start; - else if (res->flags & IORESOURCE_MEM) - offset = hose->mem_space->start; - - region->start = res->start - offset; - region->end = res->end - offset; -} - -void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res, - struct pci_bus_region *region) -{ - struct pci_controller *hose = (struct pci_controller *)dev->sysdata; - unsigned long offset = 0; - - if (res->flags & IORESOURCE_IO) - offset = hose->io_space->start; - else if (res->flags & IORESOURCE_MEM) - offset = hose->mem_space->start; - - res->start = region->start + offset; - res->end = region->end + offset; -} - -#ifdef CONFIG_HOTPLUG -EXPORT_SYMBOL(pcibios_resource_to_bus); -EXPORT_SYMBOL(pcibios_bus_to_resource); -#endif - int pcibios_enable_device(struct pci_dev *dev, int mask) { @@ -415,8 +350,10 @@ common_init_pci(void) hose->mem_space->end = end; INIT_LIST_HEAD(&resources); - pci_add_resource(&resources, hose->io_space); - pci_add_resource(&resources, hose->mem_space); + pci_add_resource_offset(&resources, hose->io_space, + hose->io_space->start); + pci_add_resource_offset(&resources, hose->mem_space, + hose->mem_space->start); bus = pci_scan_root_bus(NULL, next_busno, alpha_mv.pci_ops, hose, &resources); -- cgit v1.2.3-70-g09d2 From fb127cb9de791d62fb393d6e65fa9869bddd2460 Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Thu, 23 Feb 2012 20:19:04 -0700 Subject: PCI: collapse pcibios_resource_to_bus Everybody uses the generic pcibios_resource_to_bus() supplied by the core now, so remove the ARCH_HAS_GENERIC_PCI_OFFSETS used during conversion. Signed-off-by: Bjorn Helgaas --- arch/alpha/include/asm/pci.h | 2 -- arch/arm/include/asm/pci.h | 2 -- arch/ia64/include/asm/pci.h | 2 -- arch/microblaze/include/asm/pci.h | 2 -- arch/mips/include/asm/pci.h | 2 -- arch/mn10300/include/asm/pci.h | 2 -- arch/parisc/include/asm/pci.h | 2 -- arch/powerpc/include/asm/pci.h | 2 -- arch/sh/include/asm/pci.h | 2 -- arch/sparc/include/asm/pci_32.h | 2 -- arch/sparc/include/asm/pci_64.h | 2 -- drivers/pci/probe.c | 44 +++++++++++++-------------------------- include/asm-generic/pci.h | 2 -- 13 files changed, 15 insertions(+), 53 deletions(-) (limited to 'arch/alpha') diff --git a/arch/alpha/include/asm/pci.h b/arch/alpha/include/asm/pci.h index 121c797eb14..d01afb78919 100644 --- a/arch/alpha/include/asm/pci.h +++ b/arch/alpha/include/asm/pci.h @@ -100,8 +100,6 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) return channel ? 15 : 14; } -#define ARCH_HAS_GENERIC_PCI_OFFSETS - #define pci_domain_nr(bus) ((struct pci_controller *)(bus)->sysdata)->index static inline int pci_proc_domain(struct pci_bus *bus) diff --git a/arch/arm/include/asm/pci.h b/arch/arm/include/asm/pci.h index 4748a75ed11..a98a2e112fa 100644 --- a/arch/arm/include/asm/pci.h +++ b/arch/arm/include/asm/pci.h @@ -57,8 +57,6 @@ static inline void pci_dma_burst_advice(struct pci_dev *pdev, extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, enum pci_mmap_state mmap_state, int write_combine); -#define ARCH_HAS_GENERIC_PCI_OFFSETS - /* * Dummy implementation; always return 0. */ diff --git a/arch/ia64/include/asm/pci.h b/arch/ia64/include/asm/pci.h index 519bb5ce307..b22e5f5fa59 100644 --- a/arch/ia64/include/asm/pci.h +++ b/arch/ia64/include/asm/pci.h @@ -108,8 +108,6 @@ static inline int pci_proc_domain(struct pci_bus *bus) return (pci_domain_nr(bus) != 0); } -#define ARCH_HAS_GENERIC_PCI_OFFSETS - static inline struct resource * pcibios_select_root(struct pci_dev *pdev, struct resource *res) { diff --git a/arch/microblaze/include/asm/pci.h b/arch/microblaze/include/asm/pci.h index 8db01f705b3..a0da88bf70c 100644 --- a/arch/microblaze/include/asm/pci.h +++ b/arch/microblaze/include/asm/pci.h @@ -94,8 +94,6 @@ extern int pci_mmap_legacy_page_range(struct pci_bus *bus, */ #define PCI_DMA_BUS_IS_PHYS (1) -#define ARCH_HAS_GENERIC_PCI_OFFSETS - static inline struct resource *pcibios_select_root(struct pci_dev *pdev, struct resource *res) { diff --git a/arch/mips/include/asm/pci.h b/arch/mips/include/asm/pci.h index 6420e8df4e4..fcd4060f642 100644 --- a/arch/mips/include/asm/pci.h +++ b/arch/mips/include/asm/pci.h @@ -113,8 +113,6 @@ static inline void pci_dma_burst_advice(struct pci_dev *pdev, } #endif -#define ARCH_HAS_GENERIC_PCI_OFFSETS - #define pci_domain_nr(bus) ((struct pci_controller *)(bus)->sysdata)->index static inline int pci_proc_domain(struct pci_bus *bus) diff --git a/arch/mn10300/include/asm/pci.h b/arch/mn10300/include/asm/pci.h index dfe1581c0c9..8137c25c4e1 100644 --- a/arch/mn10300/include/asm/pci.h +++ b/arch/mn10300/include/asm/pci.h @@ -85,8 +85,6 @@ extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, /* implement the pci_ DMA API in terms of the generic device dma_ one */ #include -#define ARCH_HAS_GENERIC_PCI_OFFSETS - static inline struct resource * pcibios_select_root(struct pci_dev *pdev, struct resource *res) { diff --git a/arch/parisc/include/asm/pci.h b/arch/parisc/include/asm/pci.h index a8b591fdd56..3234f492d57 100644 --- a/arch/parisc/include/asm/pci.h +++ b/arch/parisc/include/asm/pci.h @@ -215,8 +215,6 @@ static inline void pci_dma_burst_advice(struct pci_dev *pdev, } #endif -#define ARCH_HAS_GENERIC_PCI_OFFSETS - static inline void pcibios_penalize_isa_irq(int irq, int active) { /* We don't need to penalize isa irq's */ diff --git a/arch/powerpc/include/asm/pci.h b/arch/powerpc/include/asm/pci.h index 839178bf277..201e352d488 100644 --- a/arch/powerpc/include/asm/pci.h +++ b/arch/powerpc/include/asm/pci.h @@ -154,8 +154,6 @@ extern int pci_mmap_legacy_page_range(struct pci_bus *bus, #endif /* CONFIG_PPC64 */ -#define ARCH_HAS_GENERIC_PCI_OFFSETS - extern void pcibios_claim_one_bus(struct pci_bus *b); extern void pcibios_finish_adding_to_bus(struct pci_bus *bus); diff --git a/arch/sh/include/asm/pci.h b/arch/sh/include/asm/pci.h index 3b5b6abb3ae..bff96c2e7d2 100644 --- a/arch/sh/include/asm/pci.h +++ b/arch/sh/include/asm/pci.h @@ -114,8 +114,6 @@ static inline void pci_dma_burst_advice(struct pci_dev *pdev, /* Board-specific fixup routines. */ int pcibios_map_platform_irq(const struct pci_dev *dev, u8 slot, u8 pin); -#define ARCH_HAS_GENERIC_PCI_OFFSETS - #define pci_domain_nr(bus) ((struct pci_channel *)(bus)->sysdata)->index static inline int pci_proc_domain(struct pci_bus *bus) diff --git a/arch/sparc/include/asm/pci_32.h b/arch/sparc/include/asm/pci_32.h index 6384f30429b..dc503297481 100644 --- a/arch/sparc/include/asm/pci_32.h +++ b/arch/sparc/include/asm/pci_32.h @@ -52,8 +52,6 @@ static inline void pci_dma_burst_advice(struct pci_dev *pdev, * 64Kbytes by the Host controller. */ -#define ARCH_HAS_GENERIC_PCI_OFFSETS - static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) { return PCI_IRQ_NONE; diff --git a/arch/sparc/include/asm/pci_64.h b/arch/sparc/include/asm/pci_64.h index 2918bd12c19..1633b718d3b 100644 --- a/arch/sparc/include/asm/pci_64.h +++ b/arch/sparc/include/asm/pci_64.h @@ -73,8 +73,6 @@ extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, enum pci_mmap_state mmap_state, int write_combine); -#define ARCH_HAS_GENERIC_PCI_OFFSETS - static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) { return PCI_IRQ_NONE; diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index a677b1e995d..36c22032ea1 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -66,8 +66,8 @@ static bool resource_contains(struct resource *res1, struct resource *res2) return res1->start <= res2->start && res1->end >= res2->end; } -void pci_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region, - struct resource *res) +void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region, + struct resource *res) { struct pci_host_bridge *bridge = pci_host_bridge(dev); struct pci_host_bridge_window *window; @@ -86,6 +86,7 @@ void pci_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region, region->start = res->start - offset; region->end = res->end - offset; } +EXPORT_SYMBOL(pcibios_resource_to_bus); static bool region_contains(struct pci_bus_region *region1, struct pci_bus_region *region2) @@ -93,8 +94,8 @@ static bool region_contains(struct pci_bus_region *region1, return region1->start <= region2->start && region1->end >= region2->end; } -void pci_bus_to_resource(struct pci_dev *dev, struct resource *res, - struct pci_bus_region *region) +void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res, + struct pci_bus_region *region) { struct pci_host_bridge *bridge = pci_host_bridge(dev); struct pci_host_bridge_window *window; @@ -117,22 +118,7 @@ void pci_bus_to_resource(struct pci_dev *dev, struct resource *res, res->start = region->start + offset; res->end = region->end + offset; } - -#ifdef ARCH_HAS_GENERIC_PCI_OFFSETS -void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region, - struct resource *res) -{ - pci_resource_to_bus(dev, region, res); -} -EXPORT_SYMBOL(pcibios_resource_to_bus); - -void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res, - struct pci_bus_region *region) -{ - pci_bus_to_resource(dev, res, region); -} EXPORT_SYMBOL(pcibios_bus_to_resource); -#endif /* * PCI Bus Class @@ -309,11 +295,11 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type, pci_write_config_dword(dev, pos + 4, 0); region.start = 0; region.end = sz64; - pci_bus_to_resource(dev, res, ®ion); + pcibios_bus_to_resource(dev, res, ®ion); } else { region.start = l64; region.end = l64 + sz64; - pci_bus_to_resource(dev, res, ®ion); + pcibios_bus_to_resource(dev, res, ®ion); dev_printk(KERN_DEBUG, &dev->dev, "reg %x: %pR\n", pos, res); } @@ -325,7 +311,7 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type, region.start = l; region.end = l + sz; - pci_bus_to_resource(dev, res, ®ion); + pcibios_bus_to_resource(dev, res, ®ion); dev_printk(KERN_DEBUG, &dev->dev, "reg %x: %pR\n", pos, res); } @@ -383,7 +369,7 @@ static void __devinit pci_read_bridge_io(struct pci_bus *child) res->flags = (io_base_lo & PCI_IO_RANGE_TYPE_MASK) | IORESOURCE_IO; region.start = base; region.end = limit + 0xfff; - pci_bus_to_resource(dev, &res2, ®ion); + pcibios_bus_to_resource(dev, &res2, ®ion); if (!res->start) res->start = res2.start; if (!res->end) @@ -409,7 +395,7 @@ static void __devinit pci_read_bridge_mmio(struct pci_bus *child) res->flags = (mem_base_lo & PCI_MEMORY_RANGE_TYPE_MASK) | IORESOURCE_MEM; region.start = base; region.end = limit + 0xfffff; - pci_bus_to_resource(dev, res, ®ion); + pcibios_bus_to_resource(dev, res, ®ion); dev_printk(KERN_DEBUG, &dev->dev, " bridge window %pR\n", res); } } @@ -458,7 +444,7 @@ static void __devinit pci_read_bridge_mmio_pref(struct pci_bus *child) res->flags |= IORESOURCE_MEM_64; region.start = base; region.end = limit + 0xfffff; - pci_bus_to_resource(dev, res, ®ion); + pcibios_bus_to_resource(dev, res, ®ion); dev_printk(KERN_DEBUG, &dev->dev, " bridge window %pR\n", res); } } @@ -1071,24 +1057,24 @@ int pci_setup_device(struct pci_dev *dev) region.end = 0x1F7; res = &dev->resource[0]; res->flags = LEGACY_IO_RESOURCE; - pci_bus_to_resource(dev, res, ®ion); + pcibios_bus_to_resource(dev, res, ®ion); region.start = 0x3F6; region.end = 0x3F6; res = &dev->resource[1]; res->flags = LEGACY_IO_RESOURCE; - pci_bus_to_resource(dev, res, ®ion); + pcibios_bus_to_resource(dev, res, ®ion); } if ((progif & 4) == 0) { region.start = 0x170; region.end = 0x177; res = &dev->resource[2]; res->flags = LEGACY_IO_RESOURCE; - pci_bus_to_resource(dev, res, ®ion); + pcibios_bus_to_resource(dev, res, ®ion); region.start = 0x376; region.end = 0x376; res = &dev->resource[3]; res->flags = LEGACY_IO_RESOURCE; - pci_bus_to_resource(dev, res, ®ion); + pcibios_bus_to_resource(dev, res, ®ion); } } break; diff --git a/include/asm-generic/pci.h b/include/asm-generic/pci.h index 0410346e2cf..e80a0495e5b 100644 --- a/include/asm-generic/pci.h +++ b/include/asm-generic/pci.h @@ -6,8 +6,6 @@ #ifndef _ASM_GENERIC_PCI_H #define _ASM_GENERIC_PCI_H -#define ARCH_HAS_GENERIC_PCI_OFFSETS - static inline struct resource * pcibios_select_root(struct pci_dev *pdev, struct resource *res) { -- cgit v1.2.3-70-g09d2