diff options
| -rw-r--r-- | arch/powerpc/kernel/legacy_serial.c | 5 | ||||
| -rw-r--r-- | arch/powerpc/kernel/pci_64.c | 14 | ||||
| -rw-r--r-- | arch/powerpc/kernel/prom_parse.c | 165 | ||||
| -rw-r--r-- | arch/powerpc/platforms/powermac/feature.c | 2 | ||||
| -rw-r--r-- | arch/ppc/kernel/pci.c | 15 | ||||
| -rw-r--r-- | drivers/macintosh/macio_asic.c | 12 | ||||
| -rw-r--r-- | include/asm-powerpc/pci-bridge.h | 9 | ||||
| -rw-r--r-- | include/asm-powerpc/prom.h | 28 | ||||
| -rw-r--r-- | include/asm-ppc/pci-bridge.h | 9 | ||||
| -rw-r--r-- | include/asm-ppc/prom.h | 28 |
10 files changed, 251 insertions, 36 deletions
diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c index 83023bb59ad9..d179ec502292 100644 --- a/arch/powerpc/kernel/legacy_serial.c +++ b/arch/powerpc/kernel/legacy_serial.c @@ -146,6 +146,7 @@ static int __init add_legacy_pci_port(struct device_node *np, { phys_addr_t addr, base; u32 *addrp; + unsigned int flags; int iotype, index = -1, lindex = 0; /* We only support ports that have a clock frequency properly @@ -159,12 +160,12 @@ static int __init add_legacy_pci_port(struct device_node *np, return -1; /* Get the PCI address. Assume BAR 0 */ - addrp = of_get_pci_address(pci_dev, 0, NULL); + addrp = of_get_pci_address(pci_dev, 0, NULL, &flags); if (addrp == NULL) return -1; /* We only support BAR 0 for now */ - iotype = (addrp[0] & 0x02000000) ? UPIO_MEM : UPIO_PORT; + iotype = (flags & IORESOURCE_MEM) ? UPIO_MEM : UPIO_PORT; addr = of_translate_address(pci_dev, addrp); /* Set the IO base to the same as the translated address for MMIO, diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c index 5f241fcd88e8..0988222741f0 100644 --- a/arch/powerpc/kernel/pci_64.c +++ b/arch/powerpc/kernel/pci_64.c @@ -1181,6 +1181,20 @@ void phbs_remap_io(void) remap_bus_range(hose->bus); } +unsigned int pci_address_to_pio(phys_addr_t address) +{ + struct pci_controller *hose, *tmp; + + list_for_each_entry_safe(hose, tmp, &hose_list, list_node) { + if (address >= hose->io_base_phys && + address < (hose->io_base_phys + hose->pci_io_size)) + return (unsigned int)hose->io_base_virt + + (address - hose->io_base_phys); + } + return (unsigned int)-1; +} +EXPORT_SYMBOL_GPL(pci_address_to_pio); + static void __devinit fixup_resource(struct resource *res, struct pci_dev *dev) { struct pci_controller *hose = pci_bus_to_host(dev->bus); diff --git a/arch/powerpc/kernel/prom_parse.c b/arch/powerpc/kernel/prom_parse.c index 23c85af53d47..5b764277f470 100644 --- a/arch/powerpc/kernel/prom_parse.c +++ b/arch/powerpc/kernel/prom_parse.c @@ -4,7 +4,9 @@ #include <linux/string.h> #include <linux/pci_regs.h> #include <linux/module.h> +#include <linux/ioport.h> #include <asm/prom.h> +#include <asm/pci-bridge.h> #ifdef DEBUG #define DBG(fmt...) do { printk(fmt); } while(0) @@ -54,6 +56,7 @@ struct of_bus { int *addrc, int *sizec); u64 (*map)(u32 *addr, u32 *range, int na, int ns, int pna); int (*translate)(u32 *addr, u64 offset, int na); + unsigned int (*get_flags)(u32 *addr); }; @@ -61,8 +64,8 @@ struct of_bus { * Default translator (generic bus) */ -static void of_default_count_cells(struct device_node *dev, - int *addrc, int *sizec) +static void of_bus_default_count_cells(struct device_node *dev, + int *addrc, int *sizec) { if (addrc) *addrc = prom_n_addr_cells(dev); @@ -70,7 +73,7 @@ static void of_default_count_cells(struct device_node *dev, *sizec = prom_n_size_cells(dev); } -static u64 of_default_map(u32 *addr, u32 *range, int na, int ns, int pna) +static u64 of_bus_default_map(u32 *addr, u32 *range, int na, int ns, int pna) { u64 cp, s, da; @@ -86,7 +89,7 @@ static u64 of_default_map(u32 *addr, u32 *range, int na, int ns, int pna) return da - cp; } -static int of_default_translate(u32 *addr, u64 offset, int na) +static int of_bus_default_translate(u32 *addr, u64 offset, int na) { u64 a = of_read_addr(addr, na); memset(addr, 0, na * 4); @@ -98,6 +101,11 @@ static int of_default_translate(u32 *addr, u64 offset, int na) return 0; } +static unsigned int of_bus_default_get_flags(u32 *addr) +{ + return IORESOURCE_MEM; +} + /* * PCI bus specific translator @@ -139,7 +147,24 @@ static u64 of_bus_pci_map(u32 *addr, u32 *range, int na, int ns, int pna) static int of_bus_pci_translate(u32 *addr, u64 offset, int na) { - return of_default_translate(addr + 1, offset, na - 1); + return of_bus_default_translate(addr + 1, offset, na - 1); +} + +static unsigned int of_bus_pci_get_flags(u32 *addr) +{ + unsigned int flags = 0; + u32 w = addr[0]; + + switch((w >> 24) & 0x03) { + case 0x01: + flags |= IORESOURCE_IO; + case 0x02: /* 32 bits */ + case 0x03: /* 64 bits */ + flags |= IORESOURCE_MEM; + } + if (w & 0x40000000) + flags |= IORESOURCE_PREFETCH; + return flags; } /* @@ -182,9 +207,22 @@ static u64 of_bus_isa_map(u32 *addr, u32 *range, int na, int ns, int pna) static int of_bus_isa_translate(u32 *addr, u64 offset, int na) { - return of_default_translate(addr + 1, offset, na - 1); + return of_bus_default_translate(addr + 1, offset, na - 1); +} + +static unsigned int of_bus_isa_get_flags(u32 *addr) +{ + unsigned int flags = 0; + u32 w = addr[0]; + + if (w & 1) + flags |= IORESOURCE_IO; + else + flags |= IORESOURCE_MEM; + return flags; } + /* * Array of bus specific translators */ @@ -198,6 +236,7 @@ static struct of_bus of_busses[] = { .count_cells = of_bus_pci_count_cells, .map = of_bus_pci_map, .translate = of_bus_pci_translate, + .get_flags = of_bus_pci_get_flags, }, /* ISA */ { @@ -207,15 +246,17 @@ static struct of_bus of_busses[] = { .count_cells = of_bus_isa_count_cells, .map = of_bus_isa_map, .translate = of_bus_isa_translate, + .get_flags = of_bus_isa_get_flags, }, /* Default */ { .name = "default", .addresses = "reg", .match = NULL, - .count_cells = of_default_count_cells, - .map = of_default_map, - .translate = of_default_translate, + .count_cells = of_bus_default_count_cells, + .map = of_bus_default_map, + .translate = of_bus_default_translate, + .get_flags = of_bus_default_get_flags, }, }; @@ -254,7 +295,8 @@ static int of_translate_one(struct device_node *parent, struct of_bus *bus, ranges = (u32 *)get_property(parent, "ranges", &rlen); if (ranges == NULL || rlen == 0) { offset = of_read_addr(addr, na); - memset(addr, 0, pna); + memset(addr, 0, pna * 4); + DBG("OF: no ranges, 1:1 translation\n"); goto finish; } @@ -370,7 +412,8 @@ u64 of_translate_address(struct device_node *dev, u32 *in_addr) } EXPORT_SYMBOL(of_translate_address); -u32 *of_get_address(struct device_node *dev, int index, u64 *size) +u32 *of_get_address(struct device_node *dev, int index, u64 *size, + unsigned int *flags) { u32 *prop; unsigned int psize; @@ -399,22 +442,106 @@ u32 *of_get_address(struct device_node *dev, int index, u64 *size) if (i == index) { if (size) *size = of_read_addr(prop + na, ns); + if (flags) + *flags = bus->get_flags(prop); return prop; } return NULL; } EXPORT_SYMBOL(of_get_address); -u32 *of_get_pci_address(struct device_node *dev, int bar_no, u64 *size) +u32 *of_get_pci_address(struct device_node *dev, int bar_no, u64 *size, + unsigned int *flags) { - u32 *addr; - int index; + u32 *prop; + unsigned int psize; + struct device_node *parent; + struct of_bus *bus; + int onesize, i, na, ns; - for (index = 0; (addr = of_get_address(dev, index, size)) != NULL; - index++) { - if ((addr[0] & 0xff) == ((bar_no * 4) + PCI_BASE_ADDRESS_0)) - return addr; - } + /* Get parent & match bus type */ + parent = of_get_parent(dev); + if (parent == NULL) + return NULL; + bus = of_match_bus(parent); + if (strcmp(bus->name, "pci")) + return NULL; + bus->count_cells(dev, &na, &ns); + of_node_put(parent); + if (!OF_CHECK_COUNTS(na, ns)) + return NULL; + + /* Get "reg" or "assigned-addresses" property */ + prop = (u32 *)get_property(dev, bus->addresses, &psize); + if (prop == NULL) + return NULL; + psize /= 4; + + onesize = na + ns; + for (i = 0; psize >= onesize; psize -= onesize, prop += onesize, i++) + if ((prop[0] & 0xff) == ((bar_no * 4) + PCI_BASE_ADDRESS_0)) { + if (size) + *size = of_read_addr(prop + na, ns); + if (flags) + *flags = bus->get_flags(prop); + return prop; + } return NULL; } EXPORT_SYMBOL(of_get_pci_address); + +static int __of_address_to_resource(struct device_node *dev, u32 *addrp, + u64 size, unsigned int flags, + struct resource *r) +{ + u64 taddr; + + if ((flags & (IORESOURCE_IO | IORESOURCE_MEM)) == 0) + return -EINVAL; + taddr = of_translate_address(dev, addrp); + if (taddr == OF_BAD_ADDR) + return -EINVAL; + memset(r, 0, sizeof(struct resource)); + if (flags & IORESOURCE_IO) { + unsigned int port; + port = pci_address_to_pio(taddr); + if (port == (unsigned int)-1) + return -EINVAL; + r->start = port; + r->end = port + size - 1; + } else { + r->start = taddr; + r->end = taddr + size - 1; + } + r->flags = flags; + r->name = dev->name; + return 0; +} + +int of_address_to_resource(struct device_node *dev, int index, + struct resource *r) +{ + u32 *addrp; + u64 size; + unsigned int flags; + + addrp = of_get_address(dev, index, &size, &flags); + if (addrp == NULL) + return -EINVAL; + return __of_address_to_resource(dev, addrp, size, flags, r); +} +EXPORT_SYMBOL_GPL(of_address_to_resource); + +int of_pci_address_to_resource(struct device_node *dev, int bar, + struct resource *r) +{ + u32 *addrp; + u64 size; + unsigned int flags; + + addrp = of_get_pci_address(dev, bar, &size, &flags); + if (addrp == NULL) + return -EINVAL; + return __of_address_to_resource(dev, addrp, size, flags, r); +} +EXPORT_SYMBOL_GPL(of_pci_address_to_resource); diff --git a/arch/powerpc/platforms/powermac/feature.c b/arch/powerpc/platforms/powermac/feature.c index 52a9d0c1b8b8..b2928bbe9227 100644 --- a/arch/powerpc/platforms/powermac/feature.c +++ b/arch/powerpc/platforms/powermac/feature.c @@ -2683,7 +2683,7 @@ static void __init probe_one_macio(const char *name, const char *compat, int typ printk(KERN_ERR "pmac_feature: %s skipped\n", node->full_name); return; } - addrp = of_get_pci_address(node, 0, &size); + addrp = of_get_pci_address(node, 0, &size, NULL); if (addrp == NULL) { printk(KERN_ERR "pmac_feature: %s: can't find base !\n", node->full_name); diff --git a/arch/ppc/kernel/pci.c b/arch/ppc/kernel/pci.c index 0aa184112fb1..af364003880b 100644 --- a/arch/ppc/kernel/pci.c +++ b/arch/ppc/kernel/pci.c @@ -1805,6 +1805,21 @@ void pci_iounmap(struct pci_dev *dev, void __iomem *addr) EXPORT_SYMBOL(pci_iomap); EXPORT_SYMBOL(pci_iounmap); +unsigned int pci_address_to_pio(phys_addr_t address) +{ + struct pci_controller* hose = hose_head; + + for (; hose; hose = hose->next) { + unsigned int size = hose->io_resource.end - + hose->io_resource.start + 1; + if (address >= hose->io_base_phys && + address < (hose->io_base_phys + size)) + return (unsigned int)hose->io_base_virt + + (address - hose->io_base_phys); + } + return (unsigned int)-1; +} +EXPORT_SYMBOL(pci_address_to_pio); /* * Null PCI config access functions, for the case when we can't diff --git a/drivers/macintosh/macio_asic.c b/drivers/macintosh/macio_asic.c index f14c744a94ef..0137ff239f13 100644 --- a/drivers/macintosh/macio_asic.c +++ b/drivers/macintosh/macio_asic.c @@ -332,18 +332,14 @@ static void macio_setup_resources(struct macio_dev *dev, struct resource *parent_res) { struct device_node *np = dev->ofdev.node; - u32 *addr; - u64 size; + struct resource r; int index; - for (index = 0; (addr = of_get_address(np, index, &size)) != NULL; - index++) { + for (index = 0; of_address_to_resource(np, index, &r) == 0; index++) { struct resource *res = &dev->resource[index]; if (index >= MACIO_DEV_COUNT_RESOURCES) break; - res->start = of_translate_address(np, addr); - res->end = res->start + (unsigned long)size - 1; - res->flags = IORESOURCE_MEM; + *res = r; res->name = dev->ofdev.dev.bus_id; if (macio_resource_quirks(np, res, index)) { @@ -353,7 +349,7 @@ static void macio_setup_resources(struct macio_dev *dev, /* Currently, we consider failure as harmless, this may * change in the future, once I've found all the device * tree bugs in older machines & worked around them - */ +l */ if (insert_resource(parent_res, res)) { printk(KERN_WARNING "Can't request resource " "%d for MacIO device %s\n", diff --git a/include/asm-powerpc/pci-bridge.h b/include/asm-powerpc/pci-bridge.h index 00d21513d009..01132bb602e3 100644 --- a/include/asm-powerpc/pci-bridge.h +++ b/include/asm-powerpc/pci-bridge.h @@ -156,6 +156,15 @@ extern struct pci_controller * pcibios_alloc_controller(struct device_node *dev); extern void pcibios_free_controller(struct pci_controller *phb); +#ifdef CONFIG_PCI +extern unsigned int pci_address_to_pio(phys_addr_t address); +#else +static inline unsigned int pci_address_to_pio(phys_addr_t address) +{ + return (unsigned int)-1; +} +#endif + /* Return values for ppc_md.pci_probe_mode function */ #define PCI_PROBE_NONE -1 /* Don't look at this bus at all */ #define PCI_PROBE_NORMAL 0 /* Do normal PCI probing */ diff --git a/include/asm-powerpc/prom.h b/include/asm-powerpc/prom.h index fb732c992bd2..73d27bad55fa 100644 --- a/include/asm-powerpc/prom.h +++ b/include/asm-powerpc/prom.h @@ -223,14 +223,36 @@ extern struct resource *request_OF_resource(struct device_node* node, int index, const char* name_postfix); extern int release_OF_resource(struct device_node* node, int index); + /* - * Address translation function(s) + * OF address retreival & translation + */ + + +/* Translate an OF address block into a CPU physical address */ #define OF_BAD_ADDR ((u64)-1) extern u64 of_translate_address(struct device_node *np, u32 *addr); -extern u32 *of_get_address(struct device_node *dev, int index, u64 *size); -extern u32 *of_get_pci_address(struct device_node *dev, int bar_no, u64 *size); +/* Extract an address from a device, returns the region size and + * the address space flags too. The PCI version uses a BAR number + * instead of an absolute index + */ +extern u32 *of_get_address(struct device_node *dev, int index, + u64 *size, unsigned int *flags); +extern u32 *of_get_pci_address(struct device_node *dev, int bar_no, + u64 *size, unsigned int *flags); + +/* Get an address as a resource. Note that if your address is + * a PIO address, the conversion will fail if the physical address + * can't be internally converted to an IO token with + * pci_address_to_pio(), that is because it's either called to early + * or it can't be matched to any host bridge IO space + */ +extern int of_address_to_resource(struct device_node *dev, int index, + struct resource *r); +extern int of_pci_address_to_resource(struct device_node *dev, int bar, + struct resource *r); #endif /* __KERNEL__ */ #endif /* _POWERPC_PROM_H */ diff --git a/include/asm-ppc/pci-bridge.h b/include/asm-ppc/pci-bridge.h index e58c78f90a5a..95672ddfe528 100644 --- a/include/asm-ppc/pci-bridge.h +++ b/include/asm-ppc/pci-bridge.h @@ -137,5 +137,14 @@ static inline unsigned char bridge_swizzle(unsigned char pin, */ extern int pciauto_bus_scan(struct pci_controller *, int); +#ifdef CONFIG_PCI +extern unsigned int pci_address_to_pio(phys_addr_t address); +#else +static inline unsigned int pci_address_to_pio(phys_addr_t address) +{ + return (unsigned int)-1; +} +#endif + #endif #endif /* __KERNEL__ */ diff --git a/include/asm-ppc/prom.h b/include/asm-ppc/prom.h index a10a2d64b300..eb317a0806e4 100644 --- a/include/asm-ppc/prom.h +++ b/include/asm-ppc/prom.h @@ -138,12 +138,34 @@ extern unsigned long sub_reloc_offset(unsigned long); /* - * Address translation function(s) + * OF address retreival & translation + */ + + +/* Translate an OF address block into a CPU physical address */ #define OF_BAD_ADDR ((u64)-1) extern u64 of_translate_address(struct device_node *np, u32 *addr); -extern u32 *of_get_address(struct device_node *dev, int index, u64 *size); -extern u32 *of_get_pci_address(struct device_node *dev, int bar_no, u64 *size); + +/* Extract an address from a device, returns the region size and + * the address space flags too. The PCI version uses a BAR number + * instead of an absolute index + */ +extern u32 *of_get_address(struct device_node *dev, int index, + u64 *size, unsigned int *flags); +extern u32 *of_get_pci_address(struct device_node *dev, int bar_no, + u64 *size, unsigned int *flags); + +/* Get an address as a resource. Note that if your address is + * a PIO address, the conversion will fail if the physical address + * can't be internally converted to an IO token with + * pci_address_to_pio(), that is because it's either called to early + * or it can't be matched to any host bridge IO space + */ +extern int of_address_to_resource(struct device_node *dev, int index, + struct resource *r); +extern int of_pci_address_to_resource(struct device_node *dev, int bar, + struct resource *r); #endif /* _PPC_PROM_H */ |
