diff options
56 files changed, 1884 insertions, 631 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 56c3c4065eb0..8699dadcd096 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -107,6 +107,11 @@ config AUDIT_ARCH bool default y +config GENERIC_BUG + bool + default y + depends on BUG + config DEFAULT_UIMAGE bool help @@ -478,6 +483,7 @@ config PPC_MAPLE select PPC_UDBG_16550 select PPC_970_NAP select PPC_NATIVE + select PPC_RTAS default n help This option enables support for the Maple 970FX Evaluation Board. @@ -714,7 +720,7 @@ config FORCE_MAX_ZONEORDER config MATH_EMULATION bool "Math emulation" - depends on 4xx || 8xx || E200 || E500 + depends on 4xx || 8xx || E200 || PPC_83xx || E500 ---help--- Some PowerPC chips designed for embedded applications do not have a floating-point unit and therefore do not implement the diff --git a/arch/powerpc/configs/ps3_defconfig b/arch/powerpc/configs/ps3_defconfig index f2d888e014a9..70ed61337f5c 100644 --- a/arch/powerpc/configs/ps3_defconfig +++ b/arch/powerpc/configs/ps3_defconfig @@ -157,6 +157,7 @@ CONFIG_SPU_BASE=y CONFIG_PS3_HTAB_SIZE=20 CONFIG_PS3_DYNAMIC_DMA=y CONFIG_PS3_USE_LPAR_ADDR=y +CONFIG_PS3_VUART=y # # Kernel options diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile index 4fe53d08ab81..d2ded19e4064 100644 --- a/arch/powerpc/kernel/Makefile +++ b/arch/powerpc/kernel/Makefile @@ -77,6 +77,7 @@ endif ifeq ($(CONFIG_PPC_ISERIES),y) extra-y += lparmap.s +$(obj)/head_64.o: $(obj)/lparmap.s AFLAGS_head_64.o += -I$(obj) endif diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c index 9d1614c3ce67..b742013bb9da 100644 --- a/arch/powerpc/kernel/cputable.c +++ b/arch/powerpc/kernel/cputable.c @@ -833,7 +833,7 @@ static struct cpu_spec cpu_specs[] = { .pvr_mask = 0x7fff0000, .pvr_value = 0x00840000, .cpu_name = "e300c2", - .cpu_features = CPU_FTRS_E300, + .cpu_features = CPU_FTRS_E300C2, .cpu_user_features = PPC_FEATURE_32 | PPC_FEATURE_HAS_MMU, .icache_bsize = 32, .dcache_bsize = 32, @@ -1136,8 +1136,7 @@ static struct cpu_spec cpu_specs[] = { .pvr_mask = 0xff000fff, .pvr_value = 0x53000890, .cpu_name = "440SPe Rev. A", - .cpu_features = CPU_FTR_SPLIT_ID_CACHE | - CPU_FTR_USE_TB, + .cpu_features = CPU_FTRS_44X, .cpu_user_features = COMMON_USER_BOOKE, .icache_bsize = 32, .dcache_bsize = 32, diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S index d88e182e40b3..9417cf5b4b7e 100644 --- a/arch/powerpc/kernel/head_32.S +++ b/arch/powerpc/kernel/head_32.S @@ -437,6 +437,13 @@ Alignment: /* Floating-point unavailable */ . = 0x800 FPUnavailable: +BEGIN_FTR_SECTION +/* + * Certain Freescale cores don't have a FPU and treat fp instructions + * as a FP Unavailable exception. Redirect to illegal/emulation handling. + */ + b ProgramCheck +END_FTR_SECTION_IFSET(CPU_FTR_FPU_UNAVAILABLE) EXCEPTION_PROLOG bne load_up_fpu /* if from user, just load it up */ addi r3,r1,STACK_FRAME_OVERHEAD diff --git a/arch/powerpc/kernel/module_32.c b/arch/powerpc/kernel/module_32.c index e2c3c6a85f33..8339fd609de0 100644 --- a/arch/powerpc/kernel/module_32.c +++ b/arch/powerpc/kernel/module_32.c @@ -23,6 +23,7 @@ #include <linux/string.h> #include <linux/kernel.h> #include <linux/cache.h> +#include <linux/bug.h> #include "setup.h" @@ -290,23 +291,11 @@ int module_finalize(const Elf_Ehdr *hdr, struct module *me) { const Elf_Shdr *sect; + int err; - me->arch.bug_table = NULL; - me->arch.num_bugs = 0; - - /* Find the __bug_table section, if present */ - sect = find_section(hdr, sechdrs, "__bug_table"); - if (sect != NULL) { - me->arch.bug_table = (void *) sect->sh_addr; - me->arch.num_bugs = sect->sh_size / sizeof(struct bug_entry); - } - - /* - * Strictly speaking this should have a spinlock to protect against - * traversals, but since we only traverse on BUG()s, a spinlock - * could potentially lead to deadlock and thus be counter-productive. - */ - list_add(&me->arch.bug_list, &module_bug_list); + err = module_bug_finalize(hdr, sechdrs, me); + if (err) /* never true, currently */ + return err; /* Apply feature fixups */ sect = find_section(hdr, sechdrs, "__ftr_fixup"); @@ -320,7 +309,7 @@ int module_finalize(const Elf_Ehdr *hdr, void module_arch_cleanup(struct module *mod) { - list_del(&mod->arch.bug_list); + module_bug_cleanup(mod); } struct bug_entry *module_find_bug(unsigned long bugaddr) diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c index 8dd1f0aae5d6..75c7c4f19280 100644 --- a/arch/powerpc/kernel/module_64.c +++ b/arch/powerpc/kernel/module_64.c @@ -20,6 +20,7 @@ #include <linux/moduleloader.h> #include <linux/err.h> #include <linux/vmalloc.h> +#include <linux/bug.h> #include <asm/module.h> #include <asm/uaccess.h> #include <asm/firmware.h> @@ -439,23 +440,11 @@ int module_finalize(const Elf_Ehdr *hdr, const Elf_Shdr *sechdrs, struct module *me) { const Elf_Shdr *sect; + int err; - me->arch.bug_table = NULL; - me->arch.num_bugs = 0; - - /* Find the __bug_table section, if present */ - sect = find_section(hdr, sechdrs, "__bug_table"); - if (sect != NULL) { - me->arch.bug_table = (void *) sect->sh_addr; - me->arch.num_bugs = sect->sh_size / sizeof(struct bug_entry); - } - - /* - * Strictly speaking this should have a spinlock to protect against - * traversals, but since we only traverse on BUG()s, a spinlock - * could potentially lead to deadlock and thus be counter-productive. - */ - list_add(&me->arch.bug_list, &module_bug_list); + err = module_bug_finalize(hdr, sechdrs, me); + if (err) + return err; /* Apply feature fixups */ sect = find_section(hdr, sechdrs, "__ftr_fixup"); @@ -475,7 +464,7 @@ int module_finalize(const Elf_Ehdr *hdr, void module_arch_cleanup(struct module *mod) { - list_del(&mod->arch.bug_list); + module_bug_cleanup(mod); } struct bug_entry *module_find_bug(unsigned long bugaddr) diff --git a/arch/powerpc/kernel/of_device.c b/arch/powerpc/kernel/of_device.c index 8a06724e029e..e921514e655b 100644 --- a/arch/powerpc/kernel/of_device.c +++ b/arch/powerpc/kernel/of_device.c @@ -109,9 +109,7 @@ int of_device_register(struct of_device *ofdev) if (rc) return rc; - device_create_file(&ofdev->dev, &dev_attr_devspec); - - return 0; + return device_create_file(&ofdev->dev, &dev_attr_devspec); } void of_device_unregister(struct of_device *ofdev) diff --git a/arch/powerpc/kernel/of_platform.c b/arch/powerpc/kernel/of_platform.c index b3189d0161b8..3002ea3a61a2 100644 --- a/arch/powerpc/kernel/of_platform.c +++ b/arch/powerpc/kernel/of_platform.c @@ -169,7 +169,7 @@ static void of_platform_make_bus_id(struct of_device *dev) char *name = dev->dev.bus_id; const u32 *reg; u64 addr; - long magic; + int magic; /* * If it's a DCR based device, use 'd' for native DCRs diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c index 2f54cd81dea5..8336deafc624 100644 --- a/arch/powerpc/kernel/pci_32.c +++ b/arch/powerpc/kernel/pci_32.c @@ -736,25 +736,51 @@ scan_OF_pci_childs(struct device_node* node, pci_OF_scan_iterator filter, void* return NULL; } -static int -scan_OF_pci_childs_iterator(struct device_node* node, void* data) +static struct device_node *scan_OF_for_pci_dev(struct device_node *parent, + unsigned int devfn) { - const unsigned int *reg; - u8* fdata = (u8*)data; - - reg = get_property(node, "reg", NULL); - if (reg && ((reg[0] >> 8) & 0xff) == fdata[1] - && ((reg[0] >> 16) & 0xff) == fdata[0]) - return 1; - return 0; + struct device_node *np = NULL; + const u32 *reg; + unsigned int psize; + + while ((np = of_get_next_child(parent, np)) != NULL) { + reg = get_property(np, "reg", &psize); + if (reg == NULL || psize < 4) + continue; + if (((reg[0] >> 8) & 0xff) == devfn) + return np; + } + return NULL; } -static struct device_node* -scan_OF_childs_for_device(struct device_node* node, u8 bus, u8 dev_fn) + +static struct device_node *scan_OF_for_pci_bus(struct pci_bus *bus) { - u8 filter_data[2] = {bus, dev_fn}; + struct device_node *parent, *np; + + /* Are we a root bus ? */ + if (bus->self == NULL || bus->parent == NULL) { + struct pci_controller *hose = pci_bus_to_hose(bus->number); + if (hose == NULL) + return NULL; + return of_node_get(hose->arch_data); + } + + /* not a root bus, we need to get our parent */ + parent = scan_OF_for_pci_bus(bus->parent); + if (parent == NULL) + return NULL; + + /* now iterate for children for a match */ + np = scan_OF_for_pci_dev(parent, bus->self->devfn); + of_node_put(parent); - return scan_OF_pci_childs(node, scan_OF_pci_childs_iterator, filter_data); + /* sanity check */ + if (strcmp(np->type, "pci") != 0) + printk(KERN_WARNING "pci: wrong type \"%s\" for bridge %s\n", + np->type, np->full_name); + + return np; } /* @@ -763,43 +789,25 @@ scan_OF_childs_for_device(struct device_node* node, u8 bus, u8 dev_fn) struct device_node * pci_busdev_to_OF_node(struct pci_bus *bus, int devfn) { - struct pci_controller *hose; - struct device_node *node; - int busnr; + struct device_node *parent, *np; if (!have_of) return NULL; - - /* Lookup the hose */ - busnr = bus->number; - hose = pci_bus_to_hose(busnr); - if (!hose) - return NULL; - /* Check it has an OF node associated */ - node = (struct device_node *) hose->arch_data; - if (!node) + DBG("pci_busdev_to_OF_node(%d,0x%x)\n", bus->number, devfn); + parent = scan_OF_for_pci_bus(bus); + if (parent == NULL) return NULL; - - /* Fixup bus number according to what OF think it is. */ -#ifdef CONFIG_PPC_PMAC - /* The G5 need a special case here. Basically, we don't remap all - * busses on it so we don't create the pci-OF-map. However, we do - * remap the AGP bus and so have to deal with it. A future better - * fix has to be done by making the remapping per-host and always - * filling the pci_to_OF map. --BenH + DBG(" parent is %s\n", parent ? parent->full_name : "<NULL>"); + np = scan_OF_for_pci_dev(parent, devfn); + of_node_put(parent); + DBG(" result is %s\n", np ? np->full_name : "<NULL>"); + + /* XXX most callers don't release the returned node + * mostly because ppc64 doesn't increase the refcount, + * we need to fix that. */ - if (machine_is(powermac) && busnr >= 0xf0) - busnr -= 0xf0; - else -#endif - if (pci_to_OF_bus_map) - busnr = pci_to_OF_bus_map[busnr]; - if (busnr == 0xff) - return NULL; - - /* Now, lookup childs of the hose */ - return scan_OF_childs_for_device(node->child, busnr, devfn); + return np; } EXPORT_SYMBOL(pci_busdev_to_OF_node); @@ -1544,7 +1552,7 @@ pci_resource_to_bus(struct pci_dev *pdev, struct resource *res) static struct resource *__pci_mmap_make_offset(struct pci_dev *dev, - unsigned long *offset, + resource_size_t *offset, enum pci_mmap_state mmap_state) { struct pci_controller *hose = pci_bus_to_hose(dev->bus->number); @@ -1556,7 +1564,9 @@ static struct resource *__pci_mmap_make_offset(struct pci_dev *dev, /* If memory, add on the PCI bridge address offset */ if (mmap_state == pci_mmap_mem) { +#if 0 /* See comment in pci_resource_to_user() for why this is disabled */ *offset += hose->pci_mem_offset; +#endif res_bit = IORESOURCE_MEM; } else { io_offset = hose->io_base_virt - (void __iomem *)_IO_BASE; @@ -1624,9 +1634,6 @@ static pgprot_t __pci_mmap_set_pgprot(struct pci_dev *dev, struct resource *rp, else prot |= _PAGE_GUARDED; - printk("PCI map for %s:%llx, prot: %lx\n", pci_name(dev), - (unsigned long long)rp->start, prot); - return __pgprot(prot); } @@ -1695,7 +1702,7 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, enum pci_mmap_state mmap_state, int write_combine) { - unsigned long offset = vma->vm_pgoff << PAGE_SHIFT; + resource_size_t offset = vma->vm_pgoff << PAGE_SHIFT; struct resource *rp; int ret; @@ -1808,22 +1815,42 @@ void pci_resource_to_user(const struct pci_dev *dev, int bar, resource_size_t *start, resource_size_t *end) { struct pci_controller *hose = pci_bus_to_hose(dev->bus->number); - unsigned long offset = 0; + resource_size_t offset = 0; if (hose == NULL) return; if (rsrc->flags & IORESOURCE_IO) - offset = (void __iomem *)_IO_BASE - hose->io_base_virt - + hose->io_base_phys; + offset = (unsigned long)hose->io_base_virt - _IO_BASE; + + /* We pass a fully fixed up address to userland for MMIO instead of + * a BAR value because X is lame and expects to be able to use that + * to pass to /dev/mem ! + * + * That means that we'll have potentially 64 bits values where some + * userland apps only expect 32 (like X itself since it thinks only + * Sparc has 64 bits MMIO) but if we don't do that, we break it on + * 32 bits CHRPs :-( + * + * Hopefully, the sysfs insterface is immune to that gunk. Once X + * has been fixed (and the fix spread enough), we can re-enable the + * 2 lines below and pass down a BAR value to userland. In that case + * we'll also have to re-enable the matching code in + * __pci_mmap_make_offset(). + * + * BenH. + */ +#if 0 + else if (rsrc->flags & IORESOURCE_MEM) + offset = hose->pci_mem_offset; +#endif - *start = rsrc->start + offset; - *end = rsrc->end + offset; + *start = rsrc->start - offset; + *end = rsrc->end - offset; } -void __init -pci_init_resource(struct resource *res, unsigned long start, unsigned long end, - int flags, char *name) +void __init pci_init_resource(struct resource *res, resource_size_t start, + resource_size_t end, int flags, char *name) { res->start = start; res->end = end; diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c index 6fa9a0a5c8db..a6b7692c7269 100644 --- a/arch/powerpc/kernel/pci_64.c +++ b/arch/powerpc/kernel/pci_64.c @@ -682,7 +682,7 @@ int pci_proc_domain(struct pci_bus *bus) * Returns negative error code on failure, zero on success. */ static struct resource *__pci_mmap_make_offset(struct pci_dev *dev, - unsigned long *offset, + resource_size_t *offset, enum pci_mmap_state mmap_state) { struct pci_controller *hose = pci_bus_to_host(dev->bus); @@ -694,7 +694,9 @@ static struct resource *__pci_mmap_make_offset(struct pci_dev *dev, /* If memory, add on the PCI bridge address offset */ if (mmap_state == pci_mmap_mem) { +#if 0 /* See comment in pci_resource_to_user() for why this is disabled */ *offset += hose->pci_mem_offset; +#endif res_bit = IORESOURCE_MEM; } else { io_offset = (unsigned long)hose->io_base_virt - pci_io_base; @@ -762,9 +764,6 @@ static pgprot_t __pci_mmap_set_pgprot(struct pci_dev *dev, struct resource *rp, else prot |= _PAGE_GUARDED; - printk(KERN_DEBUG "PCI map for %s:%lx, prot: %lx\n", pci_name(dev), rp->start, - prot); - return __pgprot(prot); } @@ -832,7 +831,7 @@ pgprot_t pci_phys_mem_access_prot(struct file *file, int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, enum pci_mmap_state mmap_state, int write_combine) { - unsigned long offset = vma->vm_pgoff << PAGE_SHIFT; + resource_size_t offset = vma->vm_pgoff << PAGE_SHIFT; struct resource *rp; int ret; @@ -1333,20 +1332,41 @@ EXPORT_SYMBOL(pci_read_irq_line); void pci_resource_to_user(const struct pci_dev *dev, int bar, const struct resource *rsrc, - u64 *start, u64 *end) + resource_size_t *start, resource_size_t *end) { struct pci_controller *hose = pci_bus_to_host(dev->bus); - unsigned long offset = 0; + resource_size_t offset = 0; if (hose == NULL) return; if (rsrc->flags & IORESOURCE_IO) - offset = pci_io_base - (unsigned long)hose->io_base_virt + - hose->io_base_phys; + offset = (unsigned long)hose->io_base_virt - pci_io_base; + + /* We pass a fully fixed up address to userland for MMIO instead of + * a BAR value because X is lame and expects to be able to use that + * to pass to /dev/mem ! + * + * That means that we'll have potentially 64 bits values where some + * userland apps only expect 32 (like X itself since it thinks only + * Sparc has 64 bits MMIO) but if we don't do that, we break it on + * 32 bits CHRPs :-( + * + * Hopefully, the sysfs insterface is immune to that gunk. Once X + * has been fixed (and the fix spread enough), we can re-enable the + * 2 lines below and pass down a BAR value to userland. In that case + * we'll also have to re-enable the matching code in + * __pci_mmap_make_offset(). + * + * BenH. + */ +#if 0 + else if (rsrc->flags & IORESOURCE_MEM) + offset = hose->pci_mem_offset; +#endif - *start = rsrc->start + offset; - *end = rsrc->end + offset; + *start = rsrc->start - offset; + *end = rsrc->end - offset; } struct pci_controller* pci_find_hose_for_OF_device(struct device_node* node) diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c index 9179f0739ea2..95776b6af4e2 100644 --- a/arch/powerpc/kernel/ppc_ksyms.c +++ b/arch/powerpc/kernel/ppc_ksyms.c @@ -208,7 +208,7 @@ EXPORT_SYMBOL(mmu_hash_lock); /* For MOL */ extern long *intercept_table; EXPORT_SYMBOL(intercept_table); #endif /* CONFIG_PPC_STD_MMU_32 */ -#if defined(CONFIG_40x) || defined(CONFIG_BOOKE) +#ifdef CONFIG_PPC_DCR_NATIVE EXPORT_SYMBOL(__mtdcr); EXPORT_SYMBOL(__mfdcr); #endif diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c index c18dbe77fdc2..1fc732a552db 100644 --- a/arch/powerpc/kernel/prom.c +++ b/arch/powerpc/kernel/prom.c @@ -804,6 +804,56 @@ static unsigned long __init dt_mem_next_cell(int s, cell_t **cellp) return of_read_ulong(p, s); } +#ifdef CONFIG_PPC_PSERIES +/* + * Interpret the ibm,dynamic-memory property in the + * /ibm,dynamic-reconfiguration-memory node. + * This contains a list of memory blocks along with NUMA affinity + * information. + */ +static int __init early_init_dt_scan_drconf_memory(unsigned long node) +{ + cell_t *dm, *ls; + unsigned long l, n; + unsigned long base, size, lmb_size, flags; + + ls = (cell_t *)of_get_flat_dt_prop(node, "ibm,lmb-size", &l); + if (ls == NULL || l < dt_root_size_cells * sizeof(cell_t)) + return 0; + lmb_size = dt_mem_next_cell(dt_root_size_cells, &ls); + + dm = (cell_t *)of_get_flat_dt_prop(node, "ibm,dynamic-memory", &l); + if (dm == NULL || l < sizeof(cell_t)) + return 0; + + n = *dm++; /* number of entries */ + if (l < (n * (dt_root_addr_cells + 4) + 1) * sizeof(cell_t)) + return 0; + + for (; n != 0; --n) { + base = dt_mem_next_cell(dt_root_addr_cells, &dm); + flags = dm[3]; + /* skip DRC index, pad, assoc. list index, flags */ + dm += 4; + /* skip this block if the reserved bit is set in flags (0x80) + or if the block is not assigned to this partition (0x8) */ + if ((flags & 0x80) || !(flags & 0x8)) + continue; + size = lmb_size; + if (iommu_is_off) { + if (base >= 0x80000000ul) + continue; + if ((base + size) > 0x80000000ul) + size = 0x80000000ul - base; + } + lmb_add(base, size); + } + lmb_dump_all(); + return 0; +} +#else +#define early_init_dt_scan_drconf_memory(node) 0 +#endif /* CONFIG_PPC_PSERIES */ static int __init early_init_dt_scan_memory(unsigned long node, const char *uname, int depth, void *data) @@ -812,6 +862,11 @@ static int __init early_init_dt_scan_memory(unsigned long node, cell_t *reg, *endp; unsigned long l; + /* Look for the ibm,dynamic-reconfiguration-memory node */ + if (depth == 1 && + strcmp(uname, "ibm,dynamic-reconfiguration-memory") == 0) + return early_init_dt_scan_drconf_memory(node); + /* We are scanning "memory" nodes only */ if (type == NULL) { /* diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c index 46cf32670ddb..520ef42f642e 100644 --- a/arch/powerpc/kernel/prom_init.c +++ b/arch/powerpc/kernel/prom_init.c @@ -679,7 +679,7 @@ static unsigned char ibm_architecture_vec[] = { /* option vector 5: PAPR/OF options */ 3 - 2, /* length */ 0, /* don't ignore, don't halt */ - OV5_LPAR | OV5_SPLPAR | OV5_LARGE_PAGES, + OV5_LPAR | OV5_SPLPAR | OV5_LARGE_PAGES | OV5_DRCONF_MEMORY, }; /* Old method - ELF header with PT_NOTE sections */ diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c index 387ed0d9ad61..76b5d7ebdcc6 100644 --- a/arch/powerpc/kernel/rtas.c +++ b/arch/powerpc/kernel/rtas.c @@ -303,6 +303,12 @@ int rtas_token(const char *service) } EXPORT_SYMBOL(rtas_token); +int rtas_service_present(const char *service) +{ + return rtas_token(service) != RTAS_UNKNOWN_SERVICE; +} +EXPORT_SYMBOL(rtas_service_present); + #ifdef CONFIG_RTAS_ERROR_LOGGING /* * Return the firmware-specified size of the error log buffer @@ -810,32 +816,6 @@ asmlinkage int ppc_rtas(struct rtas_args __user *uargs) return 0; } -#ifdef CONFIG_HOTPLUG_CPU -/* This version can't take the spinlock, because it never returns */ -static struct rtas_args rtas_stop_self_args = { - /* The token is initialized for real in setup_system() */ - .token = RTAS_UNKNOWN_SERVICE, - .nargs = 0, - .nret = 1, - .rets = &rtas_stop_self_args.args[0], -}; - -void rtas_stop_self(void) -{ - struct rtas_args *rtas_args = &rtas_stop_self_args; - - local_irq_disable(); - - BUG_ON(rtas_args->token == RTAS_UNKNOWN_SERVICE); - - printk("cpu %u (hwid %u) Ready to die...\n", - smp_processor_id(), hard_smp_processor_id()); - enter_rtas(__pa(rtas_args)); - - panic("Alas, I survived.\n"); -} -#endif - /* * Call early during boot, before mem init or bootmem, to retrieve the RTAS * informations from the device-tree and allocate the RMO buffer for userland @@ -880,9 +860,6 @@ void __init rtas_initialize(void) #endif rtas_rmo_buf = lmb_alloc_base(RTAS_RMOBUF_MAX, PAGE_SIZE, rtas_region); -#ifdef CONFIG_HOTPLUG_CPU - rtas_stop_self_args.token = rtas_token("stop-self"); -#endif /* CONFIG_HOTPLUG_CPU */ #ifdef CONFIG_RTAS_ERROR_LOGGING rtas_last_error_token = rtas_token("rtas-last-error"); #endif diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c index 63ed265b7f09..400ab2b946e7 100644 --- a/arch/powerpc/kernel/sysfs.c +++ b/arch/powerpc/kernel/sysfs.c @@ -181,6 +181,8 @@ SYSFS_PMCSETUP(pmc6, SPRN_PMC6); SYSFS_PMCSETUP(pmc7, SPRN_PMC7); SYSFS_PMCSETUP(pmc8, SPRN_PMC8); SYSFS_PMCSETUP(purr, SPRN_PURR); +SYSFS_PMCSETUP(spurr, SPRN_SPURR); +SYSFS_PMCSETUP(dscr, SPRN_DSCR); static SYSDEV_ATTR(mmcr0, 0600, show_mmcr0, store_mmcr0); static SYSDEV_ATTR(mmcr1, 0600, show_mmcr1, store_mmcr1); @@ -194,6 +196,8 @@ static SYSDEV_ATTR(pmc6, 0600, show_pmc6, store_pmc6); static SYSDEV_ATTR(pmc7, 0600, show_pmc7, store_pmc7); static SYSDEV_ATTR(pmc8, 0600, show_pmc8, store_pmc8); static SYSDEV_ATTR(purr, 0600, show_purr, NULL); +static SYSDEV_ATTR(spurr, 0600, show_spurr, NULL); +static SYSDEV_ATTR(dscr, 0600, show_dscr, store_dscr); static void register_cpu_online(unsigned int cpu) { @@ -231,6 +235,12 @@ static void register_cpu_online(unsigned int cpu) if (cpu_has_feature(CPU_FTR_PURR)) sysdev_create_file(s, &attr_purr); + + if (cpu_has_feature(CPU_FTR_SPURR)) + sysdev_create_file(s, &attr_spurr); + + if (cpu_has_feature(CPU_FTR_DSCR)) + sysdev_create_file(s, &attr_dscr); } #ifdef CONFIG_HOTPLUG_CPU @@ -272,6 +282,12 @@ static void unregister_cpu_online(unsigned int cpu) if (cpu_has_feature(CPU_FTR_PURR)) sysdev_remove_file(s, &attr_purr); + + if (cpu_has_feature(CPU_FTR_SPURR)) + sysdev_remove_file(s, &attr_spurr); + + if (cpu_has_feature(CPU_FTR_DSCR)) + sysdev_remove_file(s, &attr_dscr); } #endif /* CONFIG_HOTPLUG_CPU */ diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index 0d4e203fa7a0..535f50665647 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -32,6 +32,7 @@ #include <linux/kprobes.h> #include <linux/kexec.h> #include <linux/backlight.h> +#include <linux/bug.h> #include <asm/kdebug.h> #include <asm/pgtable.h> @@ -727,54 +728,9 @@ static int emulate_instruction(struct pt_regs *regs) return -EINVAL; } -/* - * Look through the list of trap instructions that are used for BUG(), - * BUG_ON() and WARN_ON() and see if we hit one. At this point we know - * that the exception was caused by a trap instruction of some kind. - * Returns 1 if we should continue (i.e. it was a WARN_ON) or 0 - * otherwise. - */ -extern struct bug_entry __start___bug_table[], __stop___bug_table[]; - -#ifndef CONFIG_MODULES -#define module_find_bug(x) NULL -#endif - -struct bug_entry *find_bug(unsigned long bugaddr) +int is_valid_bugaddr(unsigned long addr) { - struct bug_entry *bug; - - for (bug = __start___bug_table; bug < __stop___bug_table; ++bug) - if (bugaddr == bug->bug_addr) - return bug; - return module_find_bug(bugaddr); -} - -static int check_bug_trap(struct pt_regs *regs) -{ - struct bug_entry *bug; - unsigned long addr; - - if (regs->msr & MSR_PR) - return 0; /* not in kernel */ - addr = regs->nip; /* address of trap instruction */ - if (addr < PAGE_OFFSET) - return 0; - bug = find_bug(regs->nip); - if (bug == NULL) - return 0; - if (bug->line & BUG_WARNING_TRAP) { - /* this is a WARN_ON rather than BUG/BUG_ON */ - printk(KERN_ERR "Badness in %s at %s:%ld\n", - bug->function, bug->file, - bug->line & ~BUG_WARNING_TRAP); - dump_stack(); - return 1; - } - printk(KERN_CRIT "kernel BUG in %s at %s:%ld!\n", - bug->function, bug->file, bug->line); - - return 0; + return is_kernel_addr(addr); } void __kprobes program_check_exception(struct pt_regs *regs) @@ -782,6 +738,8 @@ void __kprobes program_check_exception(struct pt_regs *regs) unsigned int reason = get_reason(regs); extern int do_mathemu(struct pt_regs *regs); + /* We can now get here via a FP Unavailable exception if the core + * has no FPU, in that case no reason flags will be set */ #ifdef CONFIG_MATH_EMULATION /* (reason & REASON_ILLEGAL) would be the obvious thing here, * but there seems to be a hardware bug on the 405GP (RevD) @@ -808,7 +766,9 @@ void __kprobes program_check_exception(struct pt_regs *regs) return; if (debugger_bpt(regs)) return; - if (check_bug_trap(regs)) { + + if (!(regs->msr & MSR_PR) && /* not user-mode */ + report_bug(regs->nip) == BUG_TRAP_TYPE_WARN) { regs->nip += 4; return; } diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S index 04b98671a060..04b8e71bf5b0 100644 --- a/arch/powerpc/kernel/vmlinux.lds.S +++ b/arch/powerpc/kernel/vmlinux.lds.S @@ -62,11 +62,7 @@ SECTIONS __stop___ex_table = .; } - __bug_table : { - __start___bug_table = .; - *(__bug_table) - __stop___bug_table = .; - } + BUG_TABLE /* * Init sections discarded at runtime diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index 9da01dc8cfd9..262790910ff2 100644 --- a/arch/powerpc/mm/numa.c +++ b/arch/powerpc/mm/numa.c @@ -295,6 +295,63 @@ static unsigned long __init numa_enforce_memory_limit(unsigned long start, return lmb_end_of_DRAM() - start; } +/* + * Extract NUMA information from the ibm,dynamic-reconfiguration-memory + * node. This assumes n_mem_{addr,size}_cells have been set. + */ +static void __init parse_drconf_memory(struct device_node *memory) +{ + const unsigned int *lm, *dm, *aa; + unsigned int ls, ld, la; + unsigned int n, aam, aalen; + unsigned long lmb_size, size; + int nid, default_nid = 0; + unsigned int start, ai, flags; + + lm = get_property(memory, "ibm,lmb-size", &ls); + dm = get_property(memory, "ibm,dynamic-memory", &ld); + aa = get_property(memory, "ibm,associativity-lookup-arrays", &la); + if (!lm || !dm || !aa || + ls < sizeof(unsigned int) || ld < sizeof(unsigned int) || + la < 2 * sizeof(unsigned int)) + return; + + lmb_size = read_n_cells(n_mem_size_cells, &lm); + n = *dm++; /* number of LMBs */ + aam = *aa++; /* number of associativity lists */ + aalen = *aa++; /* length of each associativity list */ + if (ld < (n * (n_mem_addr_cells + 4) + 1) * sizeof(unsigned int) || + la < (aam * aalen + 2) * sizeof(unsigned int)) + return; + + for (; n != 0; --n) { + start = read_n_cells(n_mem_addr_cells, &dm); + ai = dm[2]; + flags = dm[3]; + dm += 4; + /* 0x80 == reserved, 0x8 = assigned to us */ + if ((flags & 0x80) || !(flags & 0x8)) + continue; + nid = default_nid; + /* flags & 0x40 means associativity index is invalid */ + if (min_common_depth > 0 && min_common_depth <= aalen && + (flags & 0x40) == 0 && ai < aam) { + /* this is like of_node_to_nid_single */ + nid = aa[ai * aalen + min_common_depth - 1]; + if (nid == 0xffff || nid >= MAX_NUMNODES) + nid = default_nid; + } + node_set_online(nid); + + size = numa_enforce_memory_limit(start, lmb_size); + if (!size) + continue; + + add_active_range(nid, start >> PAGE_SHIFT, + (start >> PAGE_SHIFT) + (size >> PAGE_SHIFT)); + } +} + static int __init parse_numa_properties(void) { struct device_node *cpu = NULL; @@ -385,6 +442,14 @@ new_range: goto new_range; } + /* + * Now do the same thing for each LMB listed in the ibm,dynamic-memory + * property in the ibm,dynamic-reconfiguration-memory node. + */ + memory = of_find_node_by_path("/ibm,dynamic-reconfiguration-memory"); + if (memory) + parse_drconf_memory(memory); + return 0; } diff --git a/arch/powerpc/platforms/52xx/lite5200.c b/arch/powerpc/platforms/52xx/lite5200.c index a375c15b4315..eaff71e74fb0 100644 --- a/arch/powerpc/platforms/52xx/lite5200.c +++ b/arch/powerpc/platforms/52xx/lite5200.c @@ -40,8 +40,6 @@ #include <asm/prom.h> #include <asm/udbg.h> #include <sysdev/fsl_soc.h> -#include <asm/qe.h> -#include <asm/qe_ic.h> #include <asm/of_platform.h> #include <asm/mpc52xx.h> diff --git a/arch/powerpc/platforms/cell/cbe_thermal.c b/arch/powerpc/platforms/cell/cbe_thermal.c index 616a0a3fd0e2..70e0d968d30f 100644 --- a/arch/powerpc/platforms/cell/cbe_thermal.c +++ b/arch/powerpc/platforms/cell/cbe_thermal.c @@ -115,6 +115,7 @@ static struct sysdev_attribute attr_spu_temperature = { static struct attribute *spu_attributes[] = { &attr_spu_temperature.attr, + NULL, }; static struct attribute_group spu_attribute_group = { @@ -135,6 +136,7 @@ static struct sysdev_attribute attr_ppe_temperature1 = { static struct attribute *ppe_attributes[] = { &attr_ppe_temperature0.attr, &attr_ppe_temperature1.attr, + NULL, }; static struct attribute_group ppe_attribute_group = { diff --git a/arch/powerpc/platforms/cell/pmu.c b/arch/powerpc/platforms/cell/pmu.c index 99c612025e8f..d04ae1671e6c 100644 --- a/arch/powerpc/platforms/cell/pmu.c +++ b/arch/powerpc/platforms/cell/pmu.c @@ -382,11 +382,14 @@ static irqreturn_t cbe_pm_irq(int irq, void *dev_id) return IRQ_HANDLED; } -int __init cbe_init_pm_irq(void) +static int __init cbe_init_pm_irq(void) { unsigned int irq; int rc, node; + if (!machine_is(cell)) + return 0; + for_each_node(node) { irq = irq_create_mapping(NULL, IIC_IRQ_IOEX_PMI | (node << IIC_IRQ_NODE_SHIFT)); diff --git a/arch/powerpc/platforms/cell/spufs/coredump.c b/arch/powerpc/platforms/cell/spufs/coredump.c index 26945c491f6b..725e19561159 100644 --- a/arch/powerpc/platforms/cell/spufs/coredump.c +++ b/arch/powerpc/platforms/cell/spufs/coredump.c @@ -147,7 +147,7 @@ static int spufs_arch_notes_size(void) struct fdtable *fdt = files_fdtable(current->files); int size = 0, fd; - for (fd = 0; fd < fdt->max_fdset && fd < fdt->max_fds; fd++) { + for (fd = 0; fd < fdt->max_fds; fd++) { if (FD_ISSET(fd, fdt->open_fds)) { struct file *file = fcheck(fd); diff --git a/arch/powerpc/platforms/maple/pci.c b/arch/powerpc/platforms/maple/pci.c index 3a32deda765d..3f6a69f67195 100644 --- a/arch/powerpc/platforms/maple/pci.c +++ b/arch/powerpc/platforms/maple/pci.c @@ -562,7 +562,7 @@ void __init maple_pci_init(void) for (np = NULL; (np = of_get_next_child(root, np)) != NULL;) { if (np->name == NULL) continue; - if (strcmp(np->name, "pci") == 0) { + if (!strcmp(np->name, "pci") || !strcmp(np->name, "pcie")) { if (add_bridge(np) == 0) of_node_get(np); } diff --git a/arch/powerpc/platforms/maple/setup.c b/arch/powerpc/platforms/maple/setup.c index 094989d50bab..f12d5c69e74d 100644 --- a/arch/powerpc/platforms/maple/setup.c +++ b/arch/powerpc/platforms/maple/setup.c @@ -60,6 +60,7 @@ #include <asm/of_device.h> #include <asm/lmb.h> #include <asm/mpic.h> +#include <asm/rtas.h> #include <asm/udbg.h> #include "maple.h" @@ -166,6 +167,16 @@ struct smp_ops_t maple_smp_ops = { }; #endif /* CONFIG_SMP */ +static void __init maple_use_rtas_reboot_and_halt_if_present(void) +{ + if (rtas_service_present("system-reboot") && + rtas_service_present("power-off")) { + ppc_md.restart = rtas_restart; + ppc_md.power_off = rtas_power_off; + ppc_md.halt = rtas_halt; + } +} + void __init maple_setup_arch(void) { /* init to some ~sane value until calibrate_delay() runs */ @@ -181,6 +192,7 @@ void __init maple_setup_arch(void) #ifdef CONFIG_DUMMY_CONSOLE conswitchp = &dummy_con; #endif + maple_use_rtas_reboot_and_halt_if_present(); printk(KERN_DEBUG "Using native/NAP idle loop\n"); } diff --git a/arch/powerpc/platforms/ps3/Kconfig b/arch/powerpc/platforms/ps3/Kconfig index 451bfcd5502e..de52ec4e9e58 100644 --- a/arch/powerpc/platforms/ps3/Kconfig +++ b/arch/powerpc/platforms/ps3/Kconfig @@ -40,4 +40,15 @@ config PS3_USE_LPAR_ADDR If you have any doubt, choose the default y. +config PS3_VUART + depends on PPC_PS3 + bool "PS3 Virtual UART support" + default y + help + Include support for the PS3 Virtual UART. + + This support is required for several system services + including the System Manager and AV Settings. In + general, all users will say Y. + endmenu diff --git a/arch/powerpc/platforms/pseries/Makefile b/arch/powerpc/platforms/pseries/Makefile index 997243a91be8..69590fbf83da 100644 --- a/arch/powerpc/platforms/pseries/Makefile +++ b/arch/powerpc/platforms/pseries/Makefile @@ -10,6 +10,8 @@ obj-$(CONFIG_XICS) += xics.o obj-$(CONFIG_SCANLOG) += scanlog.o obj-$(CONFIG_EEH) += eeh.o eeh_cache.o eeh_driver.o eeh_event.o +obj-$(CONFIG_HOTPLUG_CPU) += hotplug-cpu.o + obj-$(CONFIG_HVC_CONSOLE) += hvconsole.o obj-$(CONFIG_HVCS) += hvcserver.o obj-$(CONFIG_HCALL_STATS) += hvCall_inst.o diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c index 3c2d63ebf787..da6e5362e7cd 100644 --- a/arch/powerpc/platforms/pseries/eeh.c +++ b/arch/powerpc/platforms/pseries/eeh.c @@ -337,6 +337,7 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev) printk (KERN_ERR "EEH: Device driver ignored %d bad reads, panicing\n", pdn->eeh_check_count); dump_stack(); + msleep(5000); /* re-read the slot reset state */ if (read_slot_reset_state(pdn, rets) != 0) diff --git a/arch/powerpc/platforms/pseries/eeh_driver.c b/arch/powerpc/platforms/pseries/eeh_driver.c index c2bc9904f1cb..cbd6b0711ab4 100644 --- a/arch/powerpc/platforms/pseries/eeh_driver.c +++ b/arch/powerpc/platforms/pseries/eeh_driver.c @@ -170,14 +170,19 @@ static void eeh_report_reset(struct pci_dev *dev, void *userdata) static void eeh_report_resume(struct pci_dev *dev, void *userdata) { struct pci_driver *driver = dev->driver; + struct device_node *dn = pci_device_to_OF_node(dev); dev->error_state = pci_channel_io_normal; if (!driver) return; - if (!driver->err_handler) - return; - if (!driver->err_handler->resume) + + if ((PCI_DN(dn)->eeh_mode) & EEH_MODE_IRQ_DISABLED) { + PCI_DN(dn)->eeh_mode &= ~EEH_MODE_IRQ_DISABLED; + enable_irq(dev->irq); + } + if (!driver->err_handler || + !driver->err_handler->resume) return; driver->err_handler->resume(dev); @@ -407,6 +412,8 @@ struct pci_dn * handle_eeh_events (struct eeh_event *event) if (rc) result = PCI_ERS_RESULT_NEED_RESET; + else + result = PCI_ERS_RESULT_RECOVERED; } /* If any device has a hard failure, then shut off everything. */ diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c new file mode 100644 index 000000000000..f460b9cbfd46 --- /dev/null +++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c @@ -0,0 +1,275 @@ +/* + * pseries CPU Hotplug infrastructure. + * + * Split out from arch/powerpc/platforms/pseries/setup.c + * arch/powerpc/kernel/rtas.c, and arch/powerpc/platforms/pseries/smp.c + * + * Peter Bergner, IBM March 2001. + * Copyright (C) 2001 IBM. + * Dave Engebretsen, Peter Bergner, and + * Mike Corrigan {engebret|bergner|mikec}@us.ibm.com + * Plus various changes from other IBM teams... + * + * Copyright (C) 2006 Michael Ellerman, IBM Corporation + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#include <linux/kernel.h> +#include <linux/delay.h> +#include <linux/cpu.h> +#include <asm/system.h> +#include <asm/prom.h> +#include <asm/rtas.h> +#include <asm/firmware.h> +#include <asm/machdep.h> +#include <asm/vdso_datapage.h> +#include <asm/pSeries_reconfig.h> +#include "xics.h" + +/* This version can't take the spinlock, because it never returns */ +static struct rtas_args rtas_stop_self_args = { + .token = RTAS_UNKNOWN_SERVICE, + .nargs = 0, + .nret = 1, + .rets = &rtas_stop_self_args.args[0], +}; + +static void rtas_stop_self(void) +{ + struct rtas_args *args = &rtas_stop_self_args; + + local_irq_disable(); + + BUG_ON(args->token == RTAS_UNKNOWN_SERVICE); + + printk("cpu %u (hwid %u) Ready to die...\n", + smp_processor_id(), hard_smp_processor_id()); + enter_rtas(__pa(args)); + + panic("Alas, I survived.\n"); +} + +static void pseries_mach_cpu_die(void) +{ + local_irq_disable(); + idle_task_exit(); + xics_teardown_cpu(0); + rtas_stop_self(); + /* Should never get here... */ + BUG(); + for(;;); +} + +static int qcss_tok; /* query-cpu-stopped-state token */ + +/* Get state of physical CPU. + * Return codes: + * 0 - The processor is in the RTAS stopped state + * 1 - stop-self is in progress + * 2 - The processor is not in the RTAS stopped state + * -1 - Hardware Error + * -2 - Hardware Busy, Try again later. + */ +static int query_cpu_stopped(unsigned int pcpu) +{ + int cpu_status, status; + + status = rtas_call(qcss_tok, 1, 2, &cpu_status, pcpu); + if (status != 0) { + printk(KERN_ERR + "RTAS query-cpu-stopped-state failed: %i\n", status); + return status; + } + + return cpu_status; +} + +static int pseries_cpu_disable(void) +{ + int cpu = smp_processor_id(); + + cpu_clear(cpu, cpu_online_map); + vdso_data->processorCount--; + + /*fix boot_cpuid here*/ + if (cpu == boot_cpuid) + boot_cpuid = any_online_cpu(cpu_online_map); + + /* FIXME: abstract this to not be platform specific later on */ + xics_migrate_irqs_away(); + return 0; +} + +static void pseries_cpu_die(unsigned int cpu) +{ + int tries; + int cpu_status; + unsigned int pcpu = get_hard_smp_processor_id(cpu); + + for (tries = 0; tries < 25; tries++) { + cpu_status = query_cpu_stopped(pcpu); + if (cpu_status == 0 || cpu_status == -1) + break; + msleep(200); + } + if (cpu_status != 0) { + printk("Querying DEAD? cpu %i (%i) shows %i\n", + cpu, pcpu, cpu_status); + } + + /* Isolation and deallocation are definatly done by + * drslot_chrp_cpu. If they were not they would be + * done here. Change isolate state to Isolate and + * change allocation-state to Unusable. + */ + paca[cpu].cpu_start = 0; +} + +/* + * Update cpu_present_map and paca(s) for a new cpu node. The wrinkle + * here is that a cpu device node may represent up to two logical cpus + * in the SMT case. We must honor the assumption in other code that + * the logical ids for sibling SMT threads x and y are adjacent, such + * that x^1 == y and y^1 == x. + */ +static int pseries_add_processor(struct device_node *np) +{ + unsigned int cpu; + cpumask_t candidate_map, tmp = CPU_MASK_NONE; + int err = -ENOSPC, len, nthreads, i; + const u32 *intserv; + + intserv = get_property(np, "ibm,ppc-interrupt-server#s", &len); + if (!intserv) + return 0; + + nthreads = len / sizeof(u32); + for (i = 0; i < nthreads; i++) + cpu_set(i, tmp); + + lock_cpu_hotplug(); + + BUG_ON(!cpus_subset(cpu_present_map, cpu_possible_map)); + + /* Get a bitmap of unoccupied slots. */ + cpus_xor(candidate_map, cpu_possible_map, cpu_present_map); + if (cpus_empty(candidate_map)) { + /* If we get here, it most likely means that NR_CPUS is + * less than the partition's max processors setting. + */ + printk(KERN_ERR "Cannot add cpu %s; this system configuration" + " supports %d logical cpus.\n", np->full_name, + cpus_weight(cpu_possible_map)); + goto out_unlock; + } + + while (!cpus_empty(tmp)) + if (cpus_subset(tmp, candidate_map)) + /* Found a range where we can insert the new cpu(s) */ + break; + else + cpus_shift_left(tmp, tmp, nthreads); + + if (cpus_empty(tmp)) { + printk(KERN_ERR "Unable to find space in cpu_present_map for" + " processor %s with %d thread(s)\n", np->name, + nthreads); + goto out_unlock; + } + + for_each_cpu_mask(cpu, tmp) { + BUG_ON(cpu_isset(cpu, cpu_present_map)); + cpu_set(cpu, cpu_present_map); + set_hard_smp_processor_id(cpu, *intserv++); + } + err = 0; +out_unlock: + unlock_cpu_hotplug(); + return err; +} + +/* + * Update the present map for a cpu node which is going away, and set + * the hard id in the paca(s) to -1 to be consistent with boot time + * convention for non-present cpus. + */ +static void pseries_remove_processor(struct device_node *np) +{ + unsigned int cpu; + int len, nthreads, i; + const u32 *intserv; + + intserv = get_property(np, "ibm,ppc-interrupt-server#s", &len); + if (!intserv) + return; + + nthreads = len / sizeof(u32); + + lock_cpu_hotplug(); + for (i = 0; i < nthreads; i++) { + for_each_present_cpu(cpu) { + if (get_hard_smp_processor_id(cpu) != intserv[i]) + continue; + BUG_ON(cpu_online(cpu)); + cpu_clear(cpu, cpu_present_map); + set_hard_smp_processor_id(cpu, -1); + break; + } + if (cpu == NR_CPUS) + printk(KERN_WARNING "Could not find cpu to remove " + "with physical id 0x%x\n", intserv[i]); + } + unlock_cpu_hotplug(); +} + +static int pseries_smp_notifier(struct notifier_block *nb, + unsigned long action, void *node) +{ + int err = NOTIFY_OK; + + switch (action) { + case PSERIES_RECONFIG_ADD: + if (pseries_add_processor(node)) + err = NOTIFY_BAD; + break; + case PSERIES_RECONFIG_REMOVE: + pseries_remove_processor(node); + break; + default: + err = NOTIFY_DONE; + break; + } + return err; +} + +static struct notifier_block pseries_smp_nb = { + .notifier_call = pseries_smp_notifier, +}; + +static int __init pseries_cpu_hotplug_init(void) +{ + rtas_stop_self_args.token = rtas_token("stop-self"); + qcss_tok = rtas_token("query-cpu-stopped-state"); + + if (rtas_stop_self_args.token == RTAS_UNKNOWN_SERVICE || + qcss_tok == RTAS_UNKNOWN_SERVICE) { + printk(KERN_INFO "CPU Hotplug not supported by firmware " + "- disabling.\n"); + return 0; + } + + ppc_md.cpu_die = pseries_mach_cpu_die; + smp_ops->cpu_disable = pseries_cpu_disable; + smp_ops->cpu_die = pseries_cpu_die; + + /* Processors can be added/removed only on LPAR */ + if (firmware_has_feature(FW_FEATURE_LPAR)) + pSeries_reconfig_notifier_register(&pseries_smp_nb); + + return 0; +} +arch_initcall(pseries_cpu_hotplug_init); diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c index 0dc2548ca9bc..042ecae107ac 100644 --- a/arch/powerpc/platforms/pseries/setup.c +++ b/arch/powerpc/platforms/pseries/setup.c @@ -347,21 +347,6 @@ static int __init pSeries_init_panel(void) } arch_initcall(pSeries_init_panel); -#ifdef CONFIG_HOTPLUG_CPU -static void pSeries_mach_cpu_die(void) -{ - local_irq_disable(); - idle_task_exit(); - xics_teardown_cpu(0); - rtas_stop_self(); - /* Should never get here... */ - BUG(); - for(;;); -} -#else -#define pSeries_mach_cpu_die NULL -#endif - static int pseries_set_dabr(unsigned long dabr) { return plpar_hcall_norets(H_SET_DABR, dabr); @@ -437,19 +422,14 @@ static int __init pSeries_probe_hypertas(unsigned long node, if (of_get_flat_dt_prop(node, "ibm,hypertas-functions", NULL) != NULL) powerpc_firmware_features |= FW_FEATURE_LPAR; - if (firmware_has_feature(FW_FEATURE_LPAR)) - hpte_init_lpar(); - else - hpte_init_native(); - return 1; } static int __init pSeries_probe(void) { unsigned long root = of_get_flat_dt_root(); - char *dtype = of_get_flat_dt_prop(of_get_flat_dt_root(), - "device_type", NULL); + char *dtype = of_get_flat_dt_prop(root, "device_type", NULL); + if (dtype == NULL) return 0; if (strcmp(dtype, "chrp")) @@ -467,6 +447,11 @@ static int __init pSeries_probe(void) /* Now try to figure out if we are running on LPAR */ of_scan_flat_dt(pSeries_probe_hypertas, NULL); + if (firmware_has_feature(FW_FEATURE_LPAR)) + hpte_init_lpar(); + else + hpte_init_native(); + DBG("Machine is%s LPAR !\n", (powerpc_firmware_features & FW_FEATURE_LPAR) ? "" : " not"); @@ -561,7 +546,6 @@ define_machine(pseries) { .power_off = rtas_power_off, .halt = rtas_halt, .panic = rtas_os_term, - .cpu_die = pSeries_mach_cpu_die, .get_boot_time = rtas_get_boot_time, .get_rtc_time = rtas_get_rtc_time, .set_rtc_time = rtas_set_rtc_time, diff --git a/arch/powerpc/platforms/pseries/smp.c b/arch/powerpc/platforms/pseries/smp.c index c6624b8a0e77..4408518eaebe 100644 --- a/arch/powerpc/platforms/pseries/smp.c +++ b/arch/powerpc/platforms/pseries/smp.c @@ -64,197 +64,6 @@ static cpumask_t of_spin_map; extern void generic_secondary_smp_init(unsigned long); -#ifdef CONFIG_HOTPLUG_CPU - -/* Get state of physical CPU. - * Return codes: - * 0 - The processor is in the RTAS stopped state - * 1 - stop-self is in progress - * 2 - The processor is not in the RTAS stopped state - * -1 - Hardware Error - * -2 - Hardware Busy, Try again later. - */ -static int query_cpu_stopped(unsigned int pcpu) -{ - int cpu_status; - int status, qcss_tok; - - qcss_tok = rtas_token("query-cpu-stopped-state"); - if (qcss_tok == RTAS_UNKNOWN_SERVICE) - return -1; - status = rtas_call(qcss_tok, 1, 2, &cpu_status, pcpu); - if (status != 0) { - printk(KERN_ERR - "RTAS query-cpu-stopped-state failed: %i\n", status); - return status; - } - - return cpu_status; -} - -static int pSeries_cpu_disable(void) -{ - int cpu = smp_processor_id(); - - cpu_clear(cpu, cpu_online_map); - vdso_data->processorCount--; - - /*fix boot_cpuid here*/ - if (cpu == boot_cpuid) - boot_cpuid = any_online_cpu(cpu_online_map); - - /* FIXME: abstract this to not be platform specific later on */ - xics_migrate_irqs_away(); - return 0; -} - -static void pSeries_cpu_die(unsigned int cpu) -{ - int tries; - int cpu_status; - unsigned int pcpu = get_hard_smp_processor_id(cpu); - - for (tries = 0; tries < 25; tries++) { - cpu_status = query_cpu_stopped(pcpu); - if (cpu_status == 0 || cpu_status == -1) - break; - msleep(200); - } - if (cpu_status != 0) { - printk("Querying DEAD? cpu %i (%i) shows %i\n", - cpu, pcpu, cpu_status); - } - - /* Isolation and deallocation are definatly done by - * drslot_chrp_cpu. If they were not they would be - * done here. Change isolate state to Isolate and - * change allocation-state to Unusable. - */ - paca[cpu].cpu_start = 0; -} - -/* - * Update cpu_present_map and paca(s) for a new cpu node. The wrinkle - * here is that a cpu device node may represent up to two logical cpus - * in the SMT case. We must honor the assumption in other code that - * the logical ids for sibling SMT threads x and y are adjacent, such - * that x^1 == y and y^1 == x. - */ -static int pSeries_add_processor(struct device_node *np) -{ - unsigned int cpu; - cpumask_t candidate_map, tmp = CPU_MASK_NONE; - int err = -ENOSPC, len, nthreads, i; - const u32 *intserv; - - intserv = get_property(np, "ibm,ppc-interrupt-server#s", &len); - if (!intserv) - return 0; - - nthreads = len / sizeof(u32); - for (i = 0; i < nthreads; i++) - cpu_set(i, tmp); - - lock_cpu_hotplug(); - - BUG_ON(!cpus_subset(cpu_present_map, cpu_possible_map)); - - /* Get a bitmap of unoccupied slots. */ - cpus_xor(candidate_map, cpu_possible_map, cpu_present_map); - if (cpus_empty(candidate_map)) { - /* If we get here, it most likely means that NR_CPUS is - * less than the partition's max processors setting. - */ - printk(KERN_ERR "Cannot add cpu %s; this system configuration" - " supports %d logical cpus.\n", np->full_name, - cpus_weight(cpu_possible_map)); - goto out_unlock; - } - - while (!cpus_empty(tmp)) - if (cpus_subset(tmp, candidate_map)) - /* Found a range where we can insert the new cpu(s) */ - break; - else - cpus_shift_left(tmp, tmp, nthreads); - - if (cpus_empty(tmp)) { - printk(KERN_ERR "Unable to find space in cpu_present_map for" - " processor %s with %d thread(s)\n", np->name, - nthreads); - goto out_unlock; - } - - for_each_cpu_mask(cpu, tmp) { - BUG_ON(cpu_isset(cpu, cpu_present_map)); - cpu_set(cpu, cpu_present_map); - set_hard_smp_processor_id(cpu, *intserv++); - } - err = 0; -out_unlock: - unlock_cpu_hotplug(); - return err; -} - -/* - * Update the present map for a cpu node which is going away, and set - * the hard id in the paca(s) to -1 to be consistent with boot time - * convention for non-present cpus. - */ -static void pSeries_remove_processor(struct device_node *np) -{ - unsigned int cpu; - int len, nthreads, i; - const u32 *intserv; - - intserv = get_property(np, "ibm,ppc-interrupt-server#s", &len); - if (!intserv) - return; - - nthreads = len / sizeof(u32); - - lock_cpu_hotplug(); - for (i = 0; i < nthreads; i++) { - for_each_present_cpu(cpu) { - if (get_hard_smp_processor_id(cpu) != intserv[i]) - continue; - BUG_ON(cpu_online(cpu)); - cpu_clear(cpu, cpu_present_map); - set_hard_smp_processor_id(cpu, -1); - break; - } - if (cpu == NR_CPUS) - printk(KERN_WARNING "Could not find cpu to remove " - "with physical id 0x%x\n", intserv[i]); - } - unlock_cpu_hotplug(); -} - -static int pSeries_smp_notifier(struct notifier_block *nb, unsigned long action, void *node) -{ - int err = NOTIFY_OK; - - switch (action) { - case PSERIES_RECONFIG_ADD: - if (pSeries_add_processor(node)) - err = NOTIFY_BAD; - break; - case PSERIES_RECONFIG_REMOVE: - pSeries_remove_processor(node); - break; - default: - err = NOTIFY_DONE; - break; - } - return err; -} - -static struct notifier_block pSeries_smp_nb = { - .notifier_call = pSeries_smp_notifier, -}; - -#endif /* CONFIG_HOTPLUG_CPU */ - /** * smp_startup_cpu() - start the given cpu * @@ -422,15 +231,6 @@ static void __init smp_init_pseries(void) DBG(" -> smp_init_pSeries()\n"); -#ifdef CONFIG_HOTPLUG_CPU - smp_ops->cpu_disable = pSeries_cpu_disable; - smp_ops->cpu_die = pSeries_cpu_die; - - /* Processors can be added/removed only on LPAR */ - if (firmware_has_feature(FW_FEATURE_LPAR)) - pSeries_reconfig_notifier_register(&pSeries_smp_nb); -#endif - /* Mark threads which are still spinning in hold loops. */ if (cpu_has_feature(CPU_FTR_SMT)) { for_each_present_cpu(i) { diff --git a/arch/powerpc/sysdev/Makefile b/arch/powerpc/sysdev/Makefile index 6cc34597a620..04d4917eb303 100644 --- a/arch/powerpc/sysdev/Makefile +++ b/arch/powerpc/sysdev/Makefile @@ -5,7 +5,8 @@ endif obj-$(CONFIG_MPIC) += mpic.o obj-$(CONFIG_PPC_INDIRECT_PCI) += indirect_pci.o obj-$(CONFIG_PPC_MPC106) += grackle.o -obj-$(CONFIG_PPC_DCR) += dcr.o dcr-low.o +obj-$(CONFIG_PPC_DCR) += dcr.o +obj-$(CONFIG_PPC_DCR_NATIVE) += dcr-low.o obj-$(CONFIG_U3_DART) += dart_iommu.o obj-$(CONFIG_MMIO_NVRAM) += mmio_nvram.o obj-$(CONFIG_FSL_SOC) += fsl_soc.o diff --git a/arch/powerpc/sysdev/dcr.S b/arch/powerpc/sysdev/dcr.S deleted file mode 100644 index 2078f39e2f17..000000000000 --- a/arch/powerpc/sysdev/dcr.S +++ /dev/null @@ -1,39 +0,0 @@ -/* - * "Indirect" DCR access - * - * Copyright (c) 2004 Eugene Surovegin <ebs@ebshome.net> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ - -#include <asm/ppc_asm.h> -#include <asm/processor.h> - -#define DCR_ACCESS_PROLOG(table) \ - rlwinm r3,r3,4,18,27; \ - lis r5,table@h; \ - ori r5,r5,table@l; \ - add r3,r3,r5; \ - mtctr r3; \ - bctr - -_GLOBAL(__mfdcr) - DCR_ACCESS_PROLOG(__mfdcr_table) - -_GLOBAL(__mtdcr) - DCR_ACCESS_PROLOG(__mtdcr_table) - -__mfdcr_table: - mfdcr r3,0; blr -__mtdcr_table: - mtdcr 0,r4; blr - -dcr = 1 - .rept 1023 - mfdcr r3,dcr; blr - mtdcr dcr,r4; blr - dcr = dcr + 1 - .endr diff --git a/arch/powerpc/sysdev/qe_lib/qe_ic.c b/arch/powerpc/sysdev/qe_lib/qe_ic.c index 6995f51b9488..74e48d94f27c 100644 --- a/arch/powerpc/sysdev/qe_lib/qe_ic.c +++ b/arch/powerpc/sysdev/qe_lib/qe_ic.c @@ -223,23 +223,15 @@ static void qe_ic_mask_irq(unsigned int virq) qe_ic_write(qe_ic->regs, qe_ic_info[src].mask_reg, temp & ~qe_ic_info[src].mask); - spin_unlock_irqrestore(&qe_ic_lock, flags); -} - -static void qe_ic_mask_irq_and_ack(unsigned int virq) -{ - struct qe_ic *qe_ic = qe_ic_from_irq(virq); - unsigned int src = virq_to_hw(virq); - unsigned long flags; - u32 temp; - - spin_lock_irqsave(&qe_ic_lock, flags); - - temp = qe_ic_read(qe_ic->regs, qe_ic_info[src].mask_reg); - qe_ic_write(qe_ic->regs, qe_ic_info[src].mask_reg, - temp & ~qe_ic_info[src].mask); - - /* There is nothing to do for ack here, ack is handled in ISR */ + /* Flush the above write before enabling interrupts; otherwise, + * spurious interrupts will sometimes happen. To be 100% sure + * that the write has reached the device before interrupts are + * enabled, the mask register would have to be read back; however, + * this is not required for correctness, only to avoid wasting + * time on a large number of spurious interrupts. In testing, + * a sync reduced the observed spurious interrupts to zero. + */ + mb(); spin_unlock_irqrestore(&qe_ic_lock, flags); } @@ -248,7 +240,7 @@ static struct irq_chip qe_ic_irq_chip = { .typename = " QEIC ", .unmask = qe_ic_unmask_irq, .mask = qe_ic_mask_irq, - .mask_ack = qe_ic_mask_irq_and_ack, + .mask_ack = qe_ic_mask_irq, }; static int qe_ic_host_match(struct irq_host *h, struct device_node *node) @@ -331,34 +323,22 @@ unsigned int qe_ic_get_high_irq(struct qe_ic *qe_ic) return irq_linear_revmap(qe_ic->irqhost, irq); } -/* FIXME: We mask all the QE Low interrupts while handling. We should - * let other interrupt come in, but BAD interrupts are generated */ void fastcall qe_ic_cascade_low(unsigned int irq, struct irq_desc *desc) { struct qe_ic *qe_ic = desc->handler_data; - struct irq_chip *chip = irq_desc[irq].chip; - unsigned int cascade_irq = qe_ic_get_low_irq(qe_ic); - chip->mask_ack(irq); if (cascade_irq != NO_IRQ) generic_handle_irq(cascade_irq); - chip->unmask(irq); } -/* FIXME: We mask all the QE High interrupts while handling. We should - * let other interrupt come in, but BAD interrupts are generated */ void fastcall qe_ic_cascade_high(unsigned int irq, struct irq_desc *desc) { struct qe_ic *qe_ic = desc->handler_data; - struct irq_chip *chip = irq_desc[irq].chip; - unsigned int cascade_irq = qe_ic_get_high_irq(qe_ic); - chip->mask_ack(irq); if (cascade_irq != NO_IRQ) generic_handle_irq(cascade_irq); - chip->unmask(irq); } void __init qe_ic_init(struct device_node *node, unsigned int flags) diff --git a/arch/powerpc/sysdev/rom.c b/arch/powerpc/sysdev/rom.c index bf5b3f10e6c6..c855a3b298a3 100644 --- a/arch/powerpc/sysdev/rom.c +++ b/arch/powerpc/sysdev/rom.c @@ -9,6 +9,7 @@ #include <linux/kernel.h> #include <asm/of_device.h> +#include <asm/of_platform.h> static int __init powerpc_flash_init(void) { diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c index a34ed49e0356..77540a2f7704 100644 --- a/arch/powerpc/xmon/xmon.c +++ b/arch/powerpc/xmon/xmon.c @@ -22,6 +22,7 @@ #include <linux/sysrq.h> #include <linux/interrupt.h> #include <linux/irq.h> +#include <linux/bug.h> #include <asm/ptrace.h> #include <asm/string.h> @@ -35,7 +36,6 @@ #include <asm/cputable.h> #include <asm/rtas.h> #include <asm/sstep.h> -#include <asm/bug.h> #include <asm/irq_regs.h> #include <asm/spu.h> #include <asm/spu_priv1.h> @@ -1346,7 +1346,7 @@ static void backtrace(struct pt_regs *excp) static void print_bug_trap(struct pt_regs *regs) { - struct bug_entry *bug; + const struct bug_entry *bug; unsigned long addr; if (regs->msr & MSR_PR) @@ -1357,11 +1357,11 @@ static void print_bug_trap(struct pt_regs *regs) bug = find_bug(regs->nip); if (bug == NULL) return; - if (bug->line & BUG_WARNING_TRAP) + if (is_warning_bug(bug)) return; - printf("kernel BUG in %s at %s:%d!\n", - bug->function, bug->file, (unsigned int)bug->line); + printf("kernel BUG at %s:%u!\n", + bug->file, bug->line); } void excprint(struct pt_regs *fp) diff --git a/arch/ppc/kernel/pci.c b/arch/ppc/kernel/pci.c index 63808e01cb0b..5e723c4c2571 100644 --- a/arch/ppc/kernel/pci.c +++ b/arch/ppc/kernel/pci.c @@ -879,7 +879,7 @@ pci_resource_to_bus(struct pci_dev *pdev, struct resource *res) static struct resource *__pci_mmap_make_offset(struct pci_dev *dev, - unsigned long *offset, + resource_size_t *offset, enum pci_mmap_state mmap_state) { struct pci_controller *hose = pci_bus_to_hose(dev->bus->number); @@ -891,7 +891,9 @@ static struct resource *__pci_mmap_make_offset(struct pci_dev *dev, /* If memory, add on the PCI bridge address offset */ if (mmap_state == pci_mmap_mem) { +#if 0 /* See comment in pci_resource_to_user() for why this is disabled */ *offset += hose->pci_mem_offset; +#endif res_bit = IORESOURCE_MEM; } else { io_offset = hose->io_base_virt - ___IO_BASE; @@ -1030,7 +1032,7 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, enum pci_mmap_state mmap_state, int write_combine) { - unsigned long offset = vma->vm_pgoff << PAGE_SHIFT; + resource_size_t offset = vma->vm_pgoff << PAGE_SHIFT; struct resource *rp; int ret; @@ -1132,21 +1134,42 @@ void pci_resource_to_user(const struct pci_dev *dev, int bar, resource_size_t *start, resource_size_t *end) { struct pci_controller *hose = pci_bus_to_hose(dev->bus->number); - unsigned long offset = 0; + resource_size_t offset = 0; if (hose == NULL) return; if (rsrc->flags & IORESOURCE_IO) - offset = ___IO_BASE - hose->io_base_virt + hose->io_base_phys; + offset = (unsigned long)hose->io_base_virt - _IO_BASE; + + /* We pass a fully fixed up address to userland for MMIO instead of + * a BAR value because X is lame and expects to be able to use that + * to pass to /dev/mem ! + * + * That means that we'll have potentially 64 bits values where some + * userland apps only expect 32 (like X itself since it thinks only + * Sparc has 64 bits MMIO) but if we don't do that, we break it on + * 32 bits CHRPs :-( + * + * Hopefully, the sysfs insterface is immune to that gunk. Once X + * has been fixed (and the fix spread enough), we can re-enable the + * 2 lines below and pass down a BAR value to userland. In that case + * we'll also have to re-enable the matching code in + * __pci_mmap_make_offset(). + * + * BenH. + */ +#if 0 + else if (rsrc->flags & IORESOURCE_MEM) + offset = hose->pci_mem_offset; +#endif - *start = rsrc->start + offset; - *end = rsrc->end + offset; + *start = rsrc->start - offset; + *end = rsrc->end - offset; } -void __init -pci_init_resource(struct resource *res, unsigned long start, unsigned long end, - int flags, char *name) +void __init pci_init_resource(struct resource *res, resource_size_t start, + resource_size_t end, int flags, char *name) { res->start = start; res->end = end; diff --git a/drivers/ps3/Makefile b/drivers/ps3/Makefile index b52d547b7a78..8433eb7562cb 100644 --- a/drivers/ps3/Makefile +++ b/drivers/ps3/Makefile @@ -1 +1,2 @@ obj-y += system-bus.o +obj-$(CONFIG_PS3_VUART) += vuart.o diff --git a/drivers/ps3/vuart.c b/drivers/ps3/vuart.c new file mode 100644 index 000000000000..6974f65bcda5 --- /dev/null +++ b/drivers/ps3/vuart.c @@ -0,0 +1,965 @@ +/* + * PS3 virtual uart + * + * Copyright (C) 2006 Sony Computer Entertainment Inc. + * Copyright 2006 Sony Corp. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/interrupt.h> +#include <asm/ps3.h> + +#include <asm/lv1call.h> +#include <asm/bitops.h> + +#include "vuart.h" + +MODULE_AUTHOR("Sony Corporation"); +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("ps3 vuart"); + +/** + * vuart - An inter-partition data link service. + * port 0: PS3 AV Settings. + * port 2: PS3 System Manager. + * + * The vuart provides a bi-directional byte stream data link between logical + * partitions. Its primary role is as a communications link between the guest + * OS and the system policy module. The current HV does not support any + * connections other than those listed. + */ + +enum {PORT_COUNT = 3,}; + +enum vuart_param { + PARAM_TX_TRIGGER = 0, + PARAM_RX_TRIGGER = 1, + PARAM_INTERRUPT_MASK = 2, + PARAM_RX_BUF_SIZE = 3, /* read only */ + PARAM_RX_BYTES = 4, /* read only */ + PARAM_TX_BUF_SIZE = 5, /* read only */ + PARAM_TX_BYTES = 6, /* read only */ + PARAM_INTERRUPT_STATUS = 7, /* read only */ +}; + +enum vuart_interrupt_bit { + INTERRUPT_BIT_TX = 0, + INTERRUPT_BIT_RX = 1, + INTERRUPT_BIT_DISCONNECT = 2, +}; + +enum vuart_interrupt_mask { + INTERRUPT_MASK_TX = 1, + INTERRUPT_MASK_RX = 2, + INTERRUPT_MASK_DISCONNECT = 4, +}; + +/** + * struct ports_bmp - bitmap indicating ports needing service. + * + * A 256 bit read only bitmap indicating ports needing service. Do not write + * to these bits. Must not cross a page boundary. + */ + +struct ports_bmp { + u64 status; + u64 unused[3]; +} __attribute__ ((aligned (32))); + +/* redefine dev_dbg to do a syntax check */ + +#if !defined(DEBUG) +#undef dev_dbg +static inline int __attribute__ ((format (printf, 2, 3))) dev_dbg( + const struct device *_dev, const char *fmt, ...) {return 0;} +#endif + +#define dump_ports_bmp(_b) _dump_ports_bmp(_b, __func__, __LINE__) +static void __attribute__ ((unused)) _dump_ports_bmp( + const struct ports_bmp* bmp, const char* func, int line) +{ + pr_debug("%s:%d: ports_bmp: %016lxh\n", func, line, bmp->status); +} + +static int ps3_vuart_match_id_to_port(enum ps3_match_id match_id, + unsigned int *port_number) +{ + switch(match_id) { + case PS3_MATCH_ID_AV_SETTINGS: + *port_number = 0; + return 0; + case PS3_MATCH_ID_SYSTEM_MANAGER: + *port_number = 2; + return 0; + default: + WARN_ON(1); + *port_number = UINT_MAX; + return -EINVAL; + }; +} + +#define dump_port_params(_b) _dump_port_params(_b, __func__, __LINE__) +static void __attribute__ ((unused)) _dump_port_params(unsigned int port_number, + const char* func, int line) +{ +#if defined(DEBUG) + static const char *strings[] = { + "tx_trigger ", + "rx_trigger ", + "interrupt_mask ", + "rx_buf_size ", + "rx_bytes ", + "tx_buf_size ", + "tx_bytes ", + "interrupt_status", + }; + int result; + unsigned int i; + u64 value; + + for (i = 0; i < ARRAY_SIZE(strings); i++) { + result = lv1_get_virtual_uart_param(port_number, i, &value); + + if (result) { + pr_debug("%s:%d: port_%u: %s failed: %s\n", func, line, + port_number, strings[i], ps3_result(result)); + continue; + } + pr_debug("%s:%d: port_%u: %s = %lxh\n", + func, line, port_number, strings[i], value); + } +#endif +} + +struct vuart_triggers { + unsigned long rx; + unsigned long tx; +}; + +int ps3_vuart_get_triggers(struct ps3_vuart_port_device *dev, + struct vuart_triggers *trig) +{ + int result; + unsigned long size; + unsigned long val; + + result = lv1_get_virtual_uart_param(dev->port_number, + PARAM_TX_TRIGGER, &trig->tx); + + if (result) { + dev_dbg(&dev->core, "%s:%d: tx_trigger failed: %s\n", + __func__, __LINE__, ps3_result(result)); + return result; + } + + result = lv1_get_virtual_uart_param(dev->port_number, + PARAM_RX_BUF_SIZE, &size); + + if (result) { + dev_dbg(&dev->core, "%s:%d: tx_buf_size failed: %s\n", + __func__, __LINE__, ps3_result(result)); + return result; + } + + result = lv1_get_virtual_uart_param(dev->port_number, + PARAM_RX_TRIGGER, &val); + + if (result) { + dev_dbg(&dev->core, "%s:%d: rx_trigger failed: %s\n", + __func__, __LINE__, ps3_result(result)); + return result; + } + + trig->rx = size - val; + + dev_dbg(&dev->core, "%s:%d: tx %lxh, rx %lxh\n", __func__, __LINE__, + trig->tx, trig->rx); + + return result; +} + +int ps3_vuart_set_triggers(struct ps3_vuart_port_device *dev, unsigned int tx, + unsigned int rx) +{ + int result; + unsigned long size; + + result = lv1_set_virtual_uart_param(dev->port_number, + PARAM_TX_TRIGGER, tx); + + if (result) { + dev_dbg(&dev->core, "%s:%d: tx_trigger failed: %s\n", + __func__, __LINE__, ps3_result(result)); + return result; + } + + result = lv1_get_virtual_uart_param(dev->port_number, + PARAM_RX_BUF_SIZE, &size); + + if (result) { + dev_dbg(&dev->core, "%s:%d: tx_buf_size failed: %s\n", + __func__, __LINE__, ps3_result(result)); + return result; + } + + result = lv1_set_virtual_uart_param(dev->port_number, + PARAM_RX_TRIGGER, size - rx); + + if (result) { + dev_dbg(&dev->core, "%s:%d: rx_trigger failed: %s\n", + __func__, __LINE__, ps3_result(result)); + return result; + } + + dev_dbg(&dev->core, "%s:%d: tx %xh, rx %xh\n", __func__, __LINE__, + tx, rx); + + return result; +} + +static int ps3_vuart_get_rx_bytes_waiting(struct ps3_vuart_port_device *dev, + unsigned long *bytes_waiting) +{ + int result = lv1_get_virtual_uart_param(dev->port_number, + PARAM_RX_BYTES, bytes_waiting); + + if (result) + dev_dbg(&dev->core, "%s:%d: rx_bytes failed: %s\n", + __func__, __LINE__, ps3_result(result)); + + dev_dbg(&dev->core, "%s:%d: %lxh\n", __func__, __LINE__, + *bytes_waiting); + return result; +} + +static int ps3_vuart_set_interrupt_mask(struct ps3_vuart_port_device *dev, + unsigned long mask) +{ + int result; + + dev_dbg(&dev->core, "%s:%d: %lxh\n", __func__, __LINE__, mask); + + dev->interrupt_mask = mask; + + result = lv1_set_virtual_uart_param(dev->port_number, + PARAM_INTERRUPT_MASK, dev->interrupt_mask); + + if (result) + dev_dbg(&dev->core, "%s:%d: interrupt_mask failed: %s\n", + __func__, __LINE__, ps3_result(result)); + + return result; +} + +static int ps3_vuart_get_interrupt_mask(struct ps3_vuart_port_device *dev, + unsigned long *status) +{ + int result = lv1_get_virtual_uart_param(dev->port_number, + PARAM_INTERRUPT_STATUS, status); + + if (result) + dev_dbg(&dev->core, "%s:%d: interrupt_status failed: %s\n", + __func__, __LINE__, ps3_result(result)); + + dev_dbg(&dev->core, "%s:%d: m %lxh, s %lxh, m&s %lxh\n", + __func__, __LINE__, dev->interrupt_mask, *status, + dev->interrupt_mask & *status); + + return result; +} + +int ps3_vuart_enable_interrupt_tx(struct ps3_vuart_port_device *dev) +{ + return (dev->interrupt_mask & INTERRUPT_MASK_TX) ? 0 + : ps3_vuart_set_interrupt_mask(dev, dev->interrupt_mask + | INTERRUPT_MASK_TX); +} + +int ps3_vuart_enable_interrupt_rx(struct ps3_vuart_port_device *dev) +{ + return (dev->interrupt_mask & INTERRUPT_MASK_RX) ? 0 + : ps3_vuart_set_interrupt_mask(dev, dev->interrupt_mask + | INTERRUPT_MASK_RX); +} + +int ps3_vuart_enable_interrupt_disconnect(struct ps3_vuart_port_device *dev) +{ + return (dev->interrupt_mask & INTERRUPT_MASK_DISCONNECT) ? 0 + : ps3_vuart_set_interrupt_mask(dev, dev->interrupt_mask + | INTERRUPT_MASK_DISCONNECT); +} + +int ps3_vuart_disable_interrupt_tx(struct ps3_vuart_port_device *dev) +{ + return (dev->interrupt_mask & INTERRUPT_MASK_TX) + ? ps3_vuart_set_interrupt_mask(dev, dev->interrupt_mask + & ~INTERRUPT_MASK_TX) : 0; +} + +int ps3_vuart_disable_interrupt_rx(struct ps3_vuart_port_device *dev) +{ + return (dev->interrupt_mask & INTERRUPT_MASK_RX) + ? ps3_vuart_set_interrupt_mask(dev, dev->interrupt_mask + & ~INTERRUPT_MASK_RX) : 0; +} + +int ps3_vuart_disable_interrupt_disconnect(struct ps3_vuart_port_device *dev) +{ + return (dev->interrupt_mask & INTERRUPT_MASK_DISCONNECT) + ? ps3_vuart_set_interrupt_mask(dev, dev->interrupt_mask + & ~INTERRUPT_MASK_DISCONNECT) : 0; +} + +/** + * ps3_vuart_raw_write - Low level write helper. + * + * Do not call ps3_vuart_raw_write directly, use ps3_vuart_write. + */ + +static int ps3_vuart_raw_write(struct ps3_vuart_port_device *dev, + const void* buf, unsigned int bytes, unsigned long *bytes_written) +{ + int result; + + dev_dbg(&dev->core, "%s:%d: %xh\n", __func__, __LINE__, bytes); + + result = lv1_write_virtual_uart(dev->port_number, + ps3_mm_phys_to_lpar(__pa(buf)), bytes, bytes_written); + + if (result) { + dev_dbg(&dev->core, "%s:%d: lv1_write_virtual_uart failed: " + "%s\n", __func__, __LINE__, ps3_result(result)); + return result; + } + + dev->stats.bytes_written += *bytes_written; + + dev_dbg(&dev->core, "%s:%d: wrote %lxh/%xh=>%lxh\n", __func__, + __LINE__, *bytes_written, bytes, dev->stats.bytes_written); + + return result; +} + +/** + * ps3_vuart_raw_read - Low level read helper. + * + * Do not call ps3_vuart_raw_read directly, use ps3_vuart_read. + */ + +static int ps3_vuart_raw_read(struct ps3_vuart_port_device *dev, void* buf, + unsigned int bytes, unsigned long *bytes_read) +{ + int result; + + dev_dbg(&dev->core, "%s:%d: %xh\n", __func__, __LINE__, bytes); + + result = lv1_read_virtual_uart(dev->port_number, + ps3_mm_phys_to_lpar(__pa(buf)), bytes, bytes_read); + + if (result) { + dev_dbg(&dev->core, "%s:%d: lv1_read_virtual_uart failed: %s\n", + __func__, __LINE__, ps3_result(result)); + return result; + } + + dev->stats.bytes_read += *bytes_read; + + dev_dbg(&dev->core, "%s:%d: read %lxh/%xh=>%lxh\n", __func__, __LINE__, + *bytes_read, bytes, dev->stats.bytes_read); + + return result; +} + +/** + * struct list_buffer - An element for a port device fifo buffer list. + */ + +struct list_buffer { + struct list_head link; + const unsigned char *head; + const unsigned char *tail; + unsigned long dbg_number; + unsigned char data[]; +}; + +/** + * ps3_vuart_write - the entry point for writing data to a port + * + * If the port is idle on entry as much of the incoming data is written to + * the port as the port will accept. Otherwise a list buffer is created + * and any remaning incoming data is copied to that buffer. The buffer is + * then enqueued for transmision via the transmit interrupt. + */ + +int ps3_vuart_write(struct ps3_vuart_port_device *dev, const void* buf, + unsigned int bytes) +{ + static unsigned long dbg_number; + int result; + unsigned long flags; + struct list_buffer *lb; + + dev_dbg(&dev->core, "%s:%d: %u(%xh) bytes\n", __func__, __LINE__, + bytes, bytes); + + spin_lock_irqsave(&dev->tx_list.lock, flags); + + if (list_empty(&dev->tx_list.head)) { + unsigned long bytes_written; + + result = ps3_vuart_raw_write(dev, buf, bytes, &bytes_written); + + spin_unlock_irqrestore(&dev->tx_list.lock, flags); + + if (result) { + dev_dbg(&dev->core, + "%s:%d: ps3_vuart_raw_write failed\n", + __func__, __LINE__); + return result; + } + + if (bytes_written == bytes) { + dev_dbg(&dev->core, "%s:%d: wrote %xh bytes\n", + __func__, __LINE__, bytes); + return 0; + } + + bytes -= bytes_written; + buf += bytes_written; + } else + spin_unlock_irqrestore(&dev->tx_list.lock, flags); + + lb = kmalloc(sizeof(struct list_buffer) + bytes, GFP_KERNEL); + + if (!lb) { + return -ENOMEM; + } + + memcpy(lb->data, buf, bytes); + lb->head = lb->data; + lb->tail = lb->data + bytes; + lb->dbg_number = ++dbg_number; + + spin_lock_irqsave(&dev->tx_list.lock, flags); + list_add_tail(&lb->link, &dev->tx_list.head); + ps3_vuart_enable_interrupt_tx(dev); + spin_unlock_irqrestore(&dev->tx_list.lock, flags); + + dev_dbg(&dev->core, "%s:%d: queued buf_%lu, %xh bytes\n", + __func__, __LINE__, lb->dbg_number, bytes); + + return 0; +} + +/** + * ps3_vuart_read - the entry point for reading data from a port + * + * If enough bytes to satisfy the request are held in the buffer list those + * bytes are dequeued and copied to the caller's buffer. Emptied list buffers + * are retiered. If the request cannot be statified by bytes held in the list + * buffers -EAGAIN is returned. + */ + +int ps3_vuart_read(struct ps3_vuart_port_device *dev, void* buf, + unsigned int bytes) +{ + unsigned long flags; + struct list_buffer *lb, *n; + unsigned long bytes_read; + + dev_dbg(&dev->core, "%s:%d: %u(%xh) bytes\n", __func__, __LINE__, + bytes, bytes); + + spin_lock_irqsave(&dev->rx_list.lock, flags); + + if (dev->rx_list.bytes_held < bytes) { + spin_unlock_irqrestore(&dev->rx_list.lock, flags); + dev_dbg(&dev->core, "%s:%d: starved for %lxh bytes\n", + __func__, __LINE__, bytes - dev->rx_list.bytes_held); + return -EAGAIN; + } + + list_for_each_entry_safe(lb, n, &dev->rx_list.head, link) { + bytes_read = min((unsigned int)(lb->tail - lb->head), bytes); + + memcpy(buf, lb->head, bytes_read); + buf += bytes_read; + bytes -= bytes_read; + dev->rx_list.bytes_held -= bytes_read; + + if (bytes_read < lb->tail - lb->head) { + lb->head += bytes_read; + spin_unlock_irqrestore(&dev->rx_list.lock, flags); + + dev_dbg(&dev->core, + "%s:%d: dequeued buf_%lu, %lxh bytes\n", + __func__, __LINE__, lb->dbg_number, bytes_read); + return 0; + } + + dev_dbg(&dev->core, "%s:%d free buf_%lu\n", __func__, __LINE__, + lb->dbg_number); + + list_del(&lb->link); + kfree(lb); + } + spin_unlock_irqrestore(&dev->rx_list.lock, flags); + + dev_dbg(&dev->core, "%s:%d: dequeued buf_%lu, %xh bytes\n", + __func__, __LINE__, lb->dbg_number, bytes); + + return 0; +} + +/** + * ps3_vuart_handle_interrupt_tx - third stage transmit interrupt handler + * + * Services the transmit interrupt for the port. Writes as much data from the + * buffer list as the port will accept. Retires any emptied list buffers and + * adjusts the final list buffer state for a partial write. + */ + +static int ps3_vuart_handle_interrupt_tx(struct ps3_vuart_port_device *dev) +{ + int result = 0; + unsigned long flags; + struct list_buffer *lb, *n; + unsigned long bytes_total = 0; + + dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); + + spin_lock_irqsave(&dev->tx_list.lock, flags); + + list_for_each_entry_safe(lb, n, &dev->tx_list.head, link) { + + unsigned long bytes_written; + + result = ps3_vuart_raw_write(dev, lb->head, lb->tail - lb->head, + &bytes_written); + + if (result) { + dev_dbg(&dev->core, + "%s:%d: ps3_vuart_raw_write failed\n", + __func__, __LINE__); + break; + } + + bytes_total += bytes_written; + + if (bytes_written < lb->tail - lb->head) { + lb->head += bytes_written; + dev_dbg(&dev->core, + "%s:%d cleared buf_%lu, %lxh bytes\n", + __func__, __LINE__, lb->dbg_number, + bytes_written); + goto port_full; + } + + dev_dbg(&dev->core, "%s:%d free buf_%lu\n", __func__, __LINE__, + lb->dbg_number); + + list_del(&lb->link); + kfree(lb); + } + + ps3_vuart_disable_interrupt_tx(dev); +port_full: + spin_unlock_irqrestore(&dev->tx_list.lock, flags); + dev_dbg(&dev->core, "%s:%d wrote %lxh bytes total\n", + __func__, __LINE__, bytes_total); + return result; +} + +/** + * ps3_vuart_handle_interrupt_rx - third stage receive interrupt handler + * + * Services the receive interrupt for the port. Creates a list buffer and + * copies all waiting port data to that buffer and enqueues the buffer in the + * buffer list. Buffer list data is dequeued via ps3_vuart_read. + */ + +static int ps3_vuart_handle_interrupt_rx(struct ps3_vuart_port_device *dev) +{ + static unsigned long dbg_number; + int result = 0; + unsigned long flags; + struct list_buffer *lb; + unsigned long bytes; + + dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); + + result = ps3_vuart_get_rx_bytes_waiting(dev, &bytes); + + if (result) + return -EIO; + + BUG_ON(!bytes); + + /* add some extra space for recently arrived data */ + + bytes += 128; + + lb = kmalloc(sizeof(struct list_buffer) + bytes, GFP_ATOMIC); + + if (!lb) + return -ENOMEM; + + ps3_vuart_raw_read(dev, lb->data, bytes, &bytes); + + lb->head = lb->data; + lb->tail = lb->data + bytes; + lb->dbg_number = ++dbg_number; + + spin_lock_irqsave(&dev->rx_list.lock, flags); + list_add_tail(&lb->link, &dev->rx_list.head); + dev->rx_list.bytes_held += bytes; + spin_unlock_irqrestore(&dev->rx_list.lock, flags); + + dev_dbg(&dev->core, "%s:%d: queued buf_%lu, %lxh bytes\n", + __func__, __LINE__, lb->dbg_number, bytes); + + return 0; +} + +static int ps3_vuart_handle_interrupt_disconnect( + struct ps3_vuart_port_device *dev) +{ + dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); + BUG_ON("no support"); + return -1; +} + +/** + * ps3_vuart_handle_port_interrupt - second stage interrupt handler + * + * Services any pending interrupt types for the port. Passes control to the + * third stage type specific interrupt handler. Returns control to the first + * stage handler after one iteration. + */ + +static int ps3_vuart_handle_port_interrupt(struct ps3_vuart_port_device *dev) +{ + int result; + unsigned long status; + + result = ps3_vuart_get_interrupt_mask(dev, &status); + + if (result) + return result; + + dev_dbg(&dev->core, "%s:%d: status: %lxh\n", __func__, __LINE__, + status); + + if (status & INTERRUPT_MASK_DISCONNECT) { + dev->stats.disconnect_interrupts++; + result = ps3_vuart_handle_interrupt_disconnect(dev); + if (result) + ps3_vuart_disable_interrupt_disconnect(dev); + } + + if (status & INTERRUPT_MASK_TX) { + dev->stats.tx_interrupts++; + result = ps3_vuart_handle_interrupt_tx(dev); + if (result) + ps3_vuart_disable_interrupt_tx(dev); + } + + if (status & INTERRUPT_MASK_RX) { + dev->stats.rx_interrupts++; + result = ps3_vuart_handle_interrupt_rx(dev); + if (result) + ps3_vuart_disable_interrupt_rx(dev); + } + + return 0; +} + +struct vuart_private { + unsigned int in_use; + unsigned int virq; + struct ps3_vuart_port_device *devices[PORT_COUNT]; + const struct ports_bmp bmp; +}; + +/** + * ps3_vuart_irq_handler - first stage interrupt handler + * + * Loops finding any interrupting port and its associated instance data. + * Passes control to the second stage port specific interrupt handler. Loops + * until all outstanding interrupts are serviced. + */ + +static irqreturn_t ps3_vuart_irq_handler(int irq, void *_private) +{ + struct vuart_private *private; + + BUG_ON(!_private); + private = (struct vuart_private *)_private; + + while (1) { + unsigned int port; + + dump_ports_bmp(&private->bmp); + + port = (BITS_PER_LONG - 1) - __ilog2(private->bmp.status); + + if (port == BITS_PER_LONG) + break; + + BUG_ON(port >= PORT_COUNT); + BUG_ON(!private->devices[port]); + + ps3_vuart_handle_port_interrupt(private->devices[port]); + } + + return IRQ_HANDLED; +} + +static int ps3_vuart_match(struct device *_dev, struct device_driver *_drv) +{ + int result; + struct ps3_vuart_port_driver *drv = to_ps3_vuart_port_driver(_drv); + struct ps3_vuart_port_device *dev = to_ps3_vuart_port_device(_dev); + + result = dev->match_id == drv->match_id; + + dev_info(&dev->core, "%s:%d: dev=%u(%s), drv=%u(%s): %s\n", __func__, + __LINE__, dev->match_id, dev->core.bus_id, drv->match_id, + drv->core.name, (result ? "match" : "miss")); + + return result; +} + +static struct vuart_private vuart_private; + +static int ps3_vuart_probe(struct device *_dev) +{ + int result; + unsigned long tmp; + struct ps3_vuart_port_device *dev = to_ps3_vuart_port_device(_dev); + struct ps3_vuart_port_driver *drv = + to_ps3_vuart_port_driver(_dev->driver); + + dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); + + BUG_ON(!drv); + + result = ps3_vuart_match_id_to_port(dev->match_id, &dev->port_number); + + if (result) { + dev_dbg(&dev->core, "%s:%d: unknown match_id (%d)\n", + __func__, __LINE__, dev->match_id); + result = -EINVAL; + goto fail_match; + } + + if (vuart_private.devices[dev->port_number]) { + dev_dbg(&dev->core, "%s:%d: port busy (%d)\n", __func__, + __LINE__, dev->port_number); + result = -EBUSY; + goto fail_match; + } + + vuart_private.devices[dev->port_number] = dev; + + INIT_LIST_HEAD(&dev->tx_list.head); + spin_lock_init(&dev->tx_list.lock); + INIT_LIST_HEAD(&dev->rx_list.head); + spin_lock_init(&dev->rx_list.lock); + + vuart_private.in_use++; + if (vuart_private.in_use == 1) { + result = ps3_alloc_vuart_irq((void*)&vuart_private.bmp.status, + &vuart_private.virq); + + if (result) { + dev_dbg(&dev->core, + "%s:%d: ps3_alloc_vuart_irq failed (%d)\n", + __func__, __LINE__, result); + result = -EPERM; + goto fail_alloc_irq; + } + + result = request_irq(vuart_private.virq, ps3_vuart_irq_handler, + IRQF_DISABLED, "vuart", &vuart_private); + + if (result) { + dev_info(&dev->core, "%s:%d: request_irq failed (%d)\n", + __func__, __LINE__, result); + goto fail_request_irq; + } + } + + ps3_vuart_set_interrupt_mask(dev, INTERRUPT_MASK_RX); + + /* clear stale pending interrupts */ + ps3_vuart_get_interrupt_mask(dev, &tmp); + + ps3_vuart_set_triggers(dev, 1, 1); + + if (drv->probe) + result = drv->probe(dev); + else { + result = 0; + dev_info(&dev->core, "%s:%d: no probe method\n", __func__, + __LINE__); + } + + if (result) { + dev_dbg(&dev->core, "%s:%d: drv->probe failed\n", + __func__, __LINE__); + goto fail_probe; + } + + return result; + +fail_probe: +fail_request_irq: + vuart_private.in_use--; + if (!vuart_private.in_use) { + ps3_free_vuart_irq(vuart_private.virq); + vuart_private.virq = NO_IRQ; + } +fail_alloc_irq: +fail_match: + dev_dbg(&dev->core, "%s:%d failed\n", __func__, __LINE__); + return result; +} + +static int ps3_vuart_remove(struct device *_dev) +{ + struct ps3_vuart_port_device *dev = to_ps3_vuart_port_device(_dev); + struct ps3_vuart_port_driver *drv = + to_ps3_vuart_port_driver(_dev->driver); + + dev_dbg(&dev->core, "%s:%d: %s\n", __func__, __LINE__, + dev->core.bus_id); + + BUG_ON(vuart_private.in_use < 1); + + if (drv->remove) + drv->remove(dev); + else + dev_dbg(&dev->core, "%s:%d: %s no remove method\n", __func__, + __LINE__, dev->core.bus_id); + + vuart_private.in_use--; + + if (!vuart_private.in_use) { + free_irq(vuart_private.virq, &vuart_private); + ps3_free_vuart_irq(vuart_private.virq); + vuart_private.virq = NO_IRQ; + } + return 0; +} + +/** + * ps3_vuart - The vuart instance. + * + * The vuart is managed as a bus that port devices connect to. + */ + +struct bus_type ps3_vuart = { + .name = "ps3_vuart", + .match = ps3_vuart_match, + .probe = ps3_vuart_probe, + .remove = ps3_vuart_remove, +}; + +int __init ps3_vuart_init(void) +{ + int result; + + pr_debug("%s:%d:\n", __func__, __LINE__); + result = bus_register(&ps3_vuart); + BUG_ON(result); + return result; +} + +void __exit ps3_vuart_exit(void) +{ + pr_debug("%s:%d:\n", __func__, __LINE__); + bus_unregister(&ps3_vuart); +} + +core_initcall(ps3_vuart_init); +module_exit(ps3_vuart_exit); + +/** + * ps3_vuart_port_release_device - Remove a vuart port device. + */ + +static void ps3_vuart_port_release_device(struct device *_dev) +{ + struct ps3_vuart_port_device *dev = to_ps3_vuart_port_device(_dev); +#if defined(DEBUG) + memset(dev, 0xad, sizeof(struct ps3_vuart_port_device)); +#endif + kfree(dev); +} + +/** + * ps3_vuart_port_device_register - Add a vuart port device. + */ + +int ps3_vuart_port_device_register(struct ps3_vuart_port_device *dev) +{ + int result; + static unsigned int dev_count = 1; + + dev->core.parent = NULL; + dev->core.bus = &ps3_vuart; + dev->core.release = ps3_vuart_port_release_device; + + snprintf(dev->core.bus_id, sizeof(dev->core.bus_id), "vuart_%02x", + dev_count++); + + dev_dbg(&dev->core, "%s:%d register\n", __func__, __LINE__); + + result = device_register(&dev->core); + + return result; +} + +EXPORT_SYMBOL_GPL(ps3_vuart_port_device_register); + +/** + * ps3_vuart_port_driver_register - Add a vuart port device driver. + */ + +int ps3_vuart_port_driver_register(struct ps3_vuart_port_driver *drv) +{ + int result; + + pr_debug("%s:%d: (%s)\n", __func__, __LINE__, drv->core.name); + drv->core.bus = &ps3_vuart; + result = driver_register(&drv->core); + return result; +} + +EXPORT_SYMBOL_GPL(ps3_vuart_port_driver_register); + +/** + * ps3_vuart_port_driver_unregister - Remove a vuart port device driver. + */ + +void ps3_vuart_port_driver_unregister(struct ps3_vuart_port_driver *drv) +{ + driver_unregister(&drv->core); +} + +EXPORT_SYMBOL_GPL(ps3_vuart_port_driver_unregister); diff --git a/drivers/ps3/vuart.h b/drivers/ps3/vuart.h new file mode 100644 index 000000000000..28fd89f0c8aa --- /dev/null +++ b/drivers/ps3/vuart.h @@ -0,0 +1,94 @@ +/* + * PS3 virtual uart + * + * Copyright (C) 2006 Sony Computer Entertainment Inc. + * Copyright 2006 Sony Corp. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#if !defined(_PS3_VUART_H) +#define _PS3_VUART_H + +struct ps3_vuart_stats { + unsigned long bytes_written; + unsigned long bytes_read; + unsigned long tx_interrupts; + unsigned long rx_interrupts; + unsigned long disconnect_interrupts; +}; + +/** + * struct ps3_vuart_port_device - a device on a vuart port + */ + +struct ps3_vuart_port_device { + enum ps3_match_id match_id; + struct device core; + + /* private driver variables */ + unsigned int port_number; + unsigned long interrupt_mask; + struct { + spinlock_t lock; + struct list_head head; + } tx_list; + struct { + unsigned long bytes_held; + spinlock_t lock; + struct list_head head; + } rx_list; + struct ps3_vuart_stats stats; +}; + +/** + * struct ps3_vuart_port_driver - a driver for a device on a vuart port + */ + +struct ps3_vuart_port_driver { + enum ps3_match_id match_id; + struct device_driver core; + int (*probe)(struct ps3_vuart_port_device *); + int (*remove)(struct ps3_vuart_port_device *); + int (*tx_event)(struct ps3_vuart_port_device *dev); + int (*rx_event)(struct ps3_vuart_port_device *dev); + int (*disconnect_event)(struct ps3_vuart_port_device *dev); + /* int (*suspend)(struct ps3_vuart_port_device *, pm_message_t); */ + /* int (*resume)(struct ps3_vuart_port_device *); */ +}; + +int ps3_vuart_port_device_register(struct ps3_vuart_port_device *dev); +int ps3_vuart_port_driver_register(struct ps3_vuart_port_driver *drv); +void ps3_vuart_port_driver_unregister(struct ps3_vuart_port_driver *drv); +int ps3_vuart_write(struct ps3_vuart_port_device *dev, + const void* buf, unsigned int bytes); +int ps3_vuart_read(struct ps3_vuart_port_device *dev, void* buf, + unsigned int bytes); +static inline struct ps3_vuart_port_driver *to_ps3_vuart_port_driver( + struct device_driver *_drv) +{ + return container_of(_drv, struct ps3_vuart_port_driver, core); +} +static inline struct ps3_vuart_port_device *to_ps3_vuart_port_device( + struct device *_dev) +{ + return container_of(_dev, struct ps3_vuart_port_device, core); +} + +int ps3_vuart_write(struct ps3_vuart_port_device *dev, const void* buf, + unsigned int bytes); +int ps3_vuart_read(struct ps3_vuart_port_device *dev, void* buf, + unsigned int bytes); + +#endif diff --git a/include/asm-powerpc/Kbuild b/include/asm-powerpc/Kbuild index 1e637381c118..703970fb0ec0 100644 --- a/include/asm-powerpc/Kbuild +++ b/include/asm-powerpc/Kbuild @@ -17,7 +17,6 @@ header-y += ipc.h header-y += poll.h header-y += shmparam.h header-y += sockios.h -header-y += spu_info.h header-y += ucontext.h header-y += ioctl.h header-y += linkage.h @@ -37,6 +36,7 @@ unifdef-y += posix_types.h unifdef-y += ptrace.h unifdef-y += seccomp.h unifdef-y += signal.h +unifdef-y += spu_info.h unifdef-y += termios.h unifdef-y += types.h unifdef-y += unistd.h diff --git a/include/asm-powerpc/bug.h b/include/asm-powerpc/bug.h index 978b2c7e84ea..709568879f73 100644 --- a/include/asm-powerpc/bug.h +++ b/include/asm-powerpc/bug.h @@ -13,36 +13,39 @@ #ifndef __ASSEMBLY__ -struct bug_entry { - unsigned long bug_addr; - long line; - const char *file; - const char *function; -}; - -struct bug_entry *find_bug(unsigned long bugaddr); - -/* - * If this bit is set in the line number it means that the trap - * is for WARN_ON rather than BUG or BUG_ON. - */ -#define BUG_WARNING_TRAP 0x1000000 - #ifdef CONFIG_BUG +/* _EMIT_BUG_ENTRY expects args %0,%1,%2,%3 to be FILE, LINE, flags and + sizeof(struct bug_entry), respectively */ +#ifdef CONFIG_DEBUG_BUGVERBOSE +#define _EMIT_BUG_ENTRY \ + ".section __bug_table,\"a\"\n" \ + "2:\t" PPC_LONG "1b, %0\n" \ + "\t.short %1, %2\n" \ + ".org 2b+%3\n" \ + ".previous\n" +#else +#define _EMIT_BUG_ENTRY \ + ".section __bug_table,\"a\"\n" \ + "2:\t" PPC_LONG "1b\n" \ + "\t.short %2\n" \ + ".org 2b+%3\n" \ + ".previous\n" +#endif + /* * BUG_ON() and WARN_ON() do their best to cooperate with compile-time * optimisations. However depending on the complexity of the condition * some compiler versions may not produce optimal results. */ -#define BUG() do { \ - __asm__ __volatile__( \ - "1: twi 31,0,0\n" \ - ".section __bug_table,\"a\"\n" \ - "\t"PPC_LONG" 1b,%0,%1,%2\n" \ - ".previous" \ - : : "i" (__LINE__), "i" (__FILE__), "i" (__FUNCTION__)); \ +#define BUG() do { \ + __asm__ __volatile__( \ + "1: twi 31,0,0\n" \ + _EMIT_BUG_ENTRY \ + : : "i" (__FILE__), "i" (__LINE__), \ + "i" (0), "i" (sizeof(struct bug_entry))); \ + for(;;) ; \ } while (0) #define BUG_ON(x) do { \ @@ -51,23 +54,21 @@ struct bug_entry *find_bug(unsigned long bugaddr); BUG(); \ } else { \ __asm__ __volatile__( \ - "1: "PPC_TLNEI" %0,0\n" \ - ".section __bug_table,\"a\"\n" \ - "\t"PPC_LONG" 1b,%1,%2,%3\n" \ - ".previous" \ - : : "r" ((long)(x)), "i" (__LINE__), \ - "i" (__FILE__), "i" (__FUNCTION__)); \ + "1: "PPC_TLNEI" %4,0\n" \ + _EMIT_BUG_ENTRY \ + : : "i" (__FILE__), "i" (__LINE__), "i" (0), \ + "i" (sizeof(struct bug_entry)), \ + "r" ((long)(x))); \ } \ } while (0) #define __WARN() do { \ __asm__ __volatile__( \ "1: twi 31,0,0\n" \ - ".section __bug_table,\"a\"\n" \ - "\t"PPC_LONG" 1b,%0,%1,%2\n" \ - ".previous" \ - : : "i" (__LINE__ + BUG_WARNING_TRAP), \ - "i" (__FILE__), "i" (__FUNCTION__)); \ + _EMIT_BUG_ENTRY \ + : : "i" (__FILE__), "i" (__LINE__), \ + "i" (BUGFLAG_WARNING), \ + "i" (sizeof(struct bug_entry))); \ } while (0) #define WARN_ON(x) ({ \ @@ -77,13 +78,12 @@ struct bug_entry *find_bug(unsigned long bugaddr); __WARN(); \ } else { \ __asm__ __volatile__( \ - "1: "PPC_TLNEI" %0,0\n" \ - ".section __bug_table,\"a\"\n" \ - "\t"PPC_LONG" 1b,%1,%2,%3\n" \ - ".previous" \ - : : "r" (__ret_warn_on), \ - "i" (__LINE__ + BUG_WARNING_TRAP), \ - "i" (__FILE__), "i" (__FUNCTION__)); \ + "1: "PPC_TLNEI" %4,0\n" \ + _EMIT_BUG_ENTRY \ + : : "i" (__FILE__), "i" (__LINE__), \ + "i" (BUGFLAG_WARNING), \ + "i" (sizeof(struct bug_entry)), \ + "r" (__ret_warn_on)); \ } \ unlikely(__ret_warn_on); \ }) diff --git a/include/asm-powerpc/cputable.h b/include/asm-powerpc/cputable.h index 6fe5c9d4ca3b..7384b8086b75 100644 --- a/include/asm-powerpc/cputable.h +++ b/include/asm-powerpc/cputable.h @@ -126,6 +126,7 @@ extern void do_feature_fixups(unsigned long value, void *fixup_start, #define CPU_FTR_NODSISRALIGN ASM_CONST(0x0000000000100000) #define CPU_FTR_PPC_LE ASM_CONST(0x0000000000200000) #define CPU_FTR_REAL_LE ASM_CONST(0x0000000000400000) +#define CPU_FTR_FPU_UNAVAILABLE ASM_CONST(0x0000000000800000) /* * Add the 64-bit processor unique features in the top half of the word; @@ -152,6 +153,7 @@ extern void do_feature_fixups(unsigned long value, void *fixup_start, #define CPU_FTR_PURR LONG_ASM_CONST(0x0000400000000000) #define CPU_FTR_CELL_TB_BUG LONG_ASM_CONST(0x0000800000000000) #define CPU_FTR_SPURR LONG_ASM_CONST(0x0001000000000000) +#define CPU_FTR_DSCR LONG_ASM_CONST(0x0002000000000000) #ifndef __ASSEMBLY__ @@ -295,6 +297,9 @@ extern void do_feature_fixups(unsigned long value, void *fixup_start, #define CPU_FTRS_E300 (CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_MAYBE_CAN_DOZE | \ CPU_FTR_USE_TB | CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_HAS_HIGH_BATS | \ CPU_FTR_COMMON) +#define CPU_FTRS_E300C2 (CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_MAYBE_CAN_DOZE | \ + CPU_FTR_USE_TB | CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_HAS_HIGH_BATS | \ + CPU_FTR_COMMON | CPU_FTR_FPU_UNAVAILABLE) #define CPU_FTRS_CLASSIC32 (CPU_FTR_COMMON | CPU_FTR_SPLIT_ID_CACHE | \ CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE) #define CPU_FTRS_8XX (CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB) @@ -330,13 +335,14 @@ extern void do_feature_fixups(unsigned long value, void *fixup_start, CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \ CPU_FTR_MMCRA | CPU_FTR_SMT | \ CPU_FTR_COHERENT_ICACHE | CPU_FTR_LOCKLESS_TLBIE | \ - CPU_FTR_PURR | CPU_FTR_SPURR | CPU_FTR_REAL_LE) + CPU_FTR_PURR | CPU_FTR_SPURR | CPU_FTR_REAL_LE | \ + CPU_FTR_DSCR) #define CPU_FTRS_POWER6X (CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB | \ CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \ CPU_FTR_MMCRA | CPU_FTR_SMT | \ CPU_FTR_COHERENT_ICACHE | CPU_FTR_LOCKLESS_TLBIE | \ CPU_FTR_PURR | CPU_FTR_CI_LARGE_PAGE | \ - CPU_FTR_SPURR | CPU_FTR_REAL_LE) + CPU_FTR_SPURR | CPU_FTR_REAL_LE | CPU_FTR_DSCR) #define CPU_FTRS_CELL (CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB | \ CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \ CPU_FTR_ALTIVEC_COMP | CPU_FTR_MMCRA | CPU_FTR_SMT | \ @@ -364,7 +370,8 @@ enum { CPU_FTRS_7450_21 | CPU_FTRS_7450_23 | CPU_FTRS_7455_1 | CPU_FTRS_7455_20 | CPU_FTRS_7455 | CPU_FTRS_7447_10 | CPU_FTRS_7447 | CPU_FTRS_7447A | CPU_FTRS_82XX | - CPU_FTRS_G2_LE | CPU_FTRS_E300 | CPU_FTRS_CLASSIC32 | + CPU_FTRS_G2_LE | CPU_FTRS_E300 | CPU_FTRS_E300C2 | + CPU_FTRS_CLASSIC32 | #else CPU_FTRS_GENERIC_32 | #endif @@ -403,7 +410,8 @@ enum { CPU_FTRS_7450_21 & CPU_FTRS_7450_23 & CPU_FTRS_7455_1 & CPU_FTRS_7455_20 & CPU_FTRS_7455 & CPU_FTRS_7447_10 & CPU_FTRS_7447 & CPU_FTRS_7447A & CPU_FTRS_82XX & - CPU_FTRS_G2_LE & CPU_FTRS_E300 & CPU_FTRS_CLASSIC32 & + CPU_FTRS_G2_LE & CPU_FTRS_E300 & CPU_FTRS_E300C2 & + CPU_FTRS_CLASSIC32 & #else CPU_FTRS_GENERIC_32 & #endif diff --git a/include/asm-powerpc/dcr-native.h b/include/asm-powerpc/dcr-native.h index fd4a5f5e33d1..d7a1bc1551c6 100644 --- a/include/asm-powerpc/dcr-native.h +++ b/include/asm-powerpc/dcr-native.h @@ -20,8 +20,7 @@ #ifndef _ASM_POWERPC_DCR_NATIVE_H #define _ASM_POWERPC_DCR_NATIVE_H #ifdef __KERNEL__ - -#include <asm/reg.h> +#ifndef __ASSEMBLY__ typedef struct {} dcr_host_t; @@ -32,7 +31,41 @@ typedef struct {} dcr_host_t; #define dcr_read(host, dcr_n) mfdcr(dcr_n) #define dcr_write(host, dcr_n, value) mtdcr(dcr_n, value) +/* Device Control Registers */ +void __mtdcr(int reg, unsigned int val); +unsigned int __mfdcr(int reg); +#define mfdcr(rn) \ + ({unsigned int rval; \ + if (__builtin_constant_p(rn)) \ + asm volatile("mfdcr %0," __stringify(rn) \ + : "=r" (rval)); \ + else \ + rval = __mfdcr(rn); \ + rval;}) + +#define mtdcr(rn, v) \ +do { \ + if (__builtin_constant_p(rn)) \ + asm volatile("mtdcr " __stringify(rn) ",%0" \ + : : "r" (v)); \ + else \ + __mtdcr(rn, v); \ +} while (0) + +/* R/W of indirect DCRs make use of standard naming conventions for DCRs */ +#define mfdcri(base, reg) \ +({ \ + mtdcr(base ## _CFGADDR, base ## _ ## reg); \ + mfdcr(base ## _CFGDATA); \ +}) + +#define mtdcri(base, reg, data) \ +do { \ + mtdcr(base ## _CFGADDR, base ## _ ## reg); \ + mtdcr(base ## _CFGDATA, data); \ +} while (0) +#endif /* __ASSEMBLY__ */ #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_DCR_NATIVE_H */ diff --git a/include/asm-powerpc/dcr.h b/include/asm-powerpc/dcr.h index 473f2c7fd892..b66c5e6941f0 100644 --- a/include/asm-powerpc/dcr.h +++ b/include/asm-powerpc/dcr.h @@ -20,6 +20,7 @@ #ifndef _ASM_POWERPC_DCR_H #define _ASM_POWERPC_DCR_H #ifdef __KERNEL__ +#ifdef CONFIG_PPC_DCR #ifdef CONFIG_PPC_DCR_NATIVE #include <asm/dcr-native.h> @@ -38,5 +39,6 @@ extern unsigned int dcr_resource_len(struct device_node *np, unsigned int index); #endif /* CONFIG_PPC_MERGE */ +#endif /* CONFIG_PPC_DCR */ #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_DCR_H */ diff --git a/include/asm-powerpc/hw_irq.h b/include/asm-powerpc/hw_irq.h index d604863d72fb..9e4dd98eb220 100644 --- a/include/asm-powerpc/hw_irq.h +++ b/include/asm-powerpc/hw_irq.h @@ -107,25 +107,6 @@ static inline void local_irq_save_ptr(unsigned long *flags) #endif /* CONFIG_PPC64 */ -#define mask_irq(irq) \ - ({ \ - irq_desc_t *desc = get_irq_desc(irq); \ - if (desc->chip && desc->chip->disable) \ - desc->chip->disable(irq); \ - }) -#define unmask_irq(irq) \ - ({ \ - irq_desc_t *desc = get_irq_desc(irq); \ - if (desc->chip && desc->chip->enable) \ - desc->chip->enable(irq); \ - }) -#define ack_irq(irq) \ - ({ \ - irq_desc_t *desc = get_irq_desc(irq); \ - if (desc->chip && desc->chip->ack) \ - desc->chip->ack(irq); \ - }) - /* * interrupt-retrigger: should we handle this via lost interrupts and IPIs * or should we not care like we do now ? --BenH. diff --git a/include/asm-powerpc/module.h b/include/asm-powerpc/module.h index 584fabfb4f08..e5f14b13ccf0 100644 --- a/include/asm-powerpc/module.h +++ b/include/asm-powerpc/module.h @@ -46,8 +46,6 @@ struct mod_arch_specific { unsigned int num_bugs; }; -extern struct bug_entry *module_find_bug(unsigned long bugaddr); - /* * Select ELF headers. * Make empty section for module_frob_arch_sections to expand. diff --git a/include/asm-powerpc/pci-bridge.h b/include/asm-powerpc/pci-bridge.h index 7bb7f9009806..cb02c9d1ef93 100644 --- a/include/asm-powerpc/pci-bridge.h +++ b/include/asm-powerpc/pci-bridge.h @@ -31,12 +31,12 @@ struct pci_controller { int last_busno; void __iomem *io_base_virt; - unsigned long io_base_phys; + resource_size_t io_base_phys; /* Some machines have a non 1:1 mapping of * the PCI memory space in the CPU bus space */ - unsigned long pci_mem_offset; + resource_size_t pci_mem_offset; unsigned long pci_io_size; struct pci_ops *ops; diff --git a/include/asm-powerpc/pci.h b/include/asm-powerpc/pci.h index 16f13319c769..ac656ee6bb19 100644 --- a/include/asm-powerpc/pci.h +++ b/include/asm-powerpc/pci.h @@ -143,8 +143,13 @@ int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma, /* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */ #define HAVE_PCI_MMAP 1 -#ifdef CONFIG_PPC64 -/* pci_unmap_{single,page} is not a nop, thus... */ +#if defined(CONFIG_PPC64) || defined(CONFIG_NOT_COHERENT_CACHE) +/* + * For 64-bit kernels, pci_unmap_{single,page} is not a nop. + * For 32-bit non-coherent kernels, pci_dma_sync_single_for_cpu() and + * so on are not nops. + * and thus... + */ #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \ dma_addr_t ADDR_NAME; #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \ @@ -158,6 +163,20 @@ int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma, #define pci_unmap_len_set(PTR, LEN_NAME, VAL) \ (((PTR)->LEN_NAME) = (VAL)) +#else /* 32-bit && coherent */ + +/* pci_unmap_{page,single} is a nop so... */ +#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) +#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) +#define pci_unmap_addr(PTR, ADDR_NAME) (0) +#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0) +#define pci_unmap_len(PTR, LEN_NAME) (0) +#define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0) + +#endif /* CONFIG_PPC64 || CONFIG_NOT_COHERENT_CACHE */ + +#ifdef CONFIG_PPC64 + /* The PCI address space does not equal the physical memory address * space (we have an IOMMU). The IDE and SCSI device layers use * this boolean for bounce buffer decisions. @@ -172,16 +191,8 @@ int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma, */ #define PCI_DMA_BUS_IS_PHYS (1) -/* pci_unmap_{page,single} is a nop so... */ -#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) -#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) -#define pci_unmap_addr(PTR, ADDR_NAME) (0) -#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0) -#define pci_unmap_len(PTR, LEN_NAME) (0) -#define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0) - #endif /* CONFIG_PPC64 */ - + extern void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region, struct resource *res); diff --git a/include/asm-powerpc/reg.h b/include/asm-powerpc/reg.h index 6faae7b14d55..a3631b15754c 100644 --- a/include/asm-powerpc/reg.h +++ b/include/asm-powerpc/reg.h @@ -143,6 +143,7 @@ /* Special Purpose Registers (SPRNs)*/ #define SPRN_CTR 0x009 /* Count Register */ +#define SPRN_DSCR 0x11 #define SPRN_CTRLF 0x088 #define SPRN_CTRLT 0x098 #define CTRL_CT 0xc0000000 /* current thread */ @@ -163,6 +164,7 @@ #define SPRN_TBRU 0x10D /* Time Base Read Upper Register (user, R/O) */ #define SPRN_TBWL 0x11C /* Time Base Lower Register (super, R/W) */ #define SPRN_TBWU 0x11D /* Time Base Upper Register (super, R/W) */ +#define SPRN_SPURR 0x134 /* Scaled PURR */ #define SPRN_HIOR 0x137 /* 970 Hypervisor interrupt offset */ #define SPRN_DBAT0L 0x219 /* Data BAT 0 Lower Register */ #define SPRN_DBAT0U 0x218 /* Data BAT 0 Upper Register */ diff --git a/include/asm-powerpc/rtas.h b/include/asm-powerpc/rtas.h index 5a0c136c0416..8eaa7b28d9d0 100644 --- a/include/asm-powerpc/rtas.h +++ b/include/asm-powerpc/rtas.h @@ -159,6 +159,7 @@ extern struct rtas_t rtas; extern void enter_rtas(unsigned long); extern int rtas_token(const char *service); +extern int rtas_service_present(const char *service); extern int rtas_call(int token, int, int, int *, ...); extern void rtas_restart(char *cmd); extern void rtas_power_off(void); @@ -221,8 +222,6 @@ extern int rtas_get_error_log_max(void); extern spinlock_t rtas_data_buf_lock; extern char rtas_data_buf[RTAS_DATA_BUF_SIZE]; -extern void rtas_stop_self(void); - /* RMO buffer reserved for user-space RTAS use */ extern unsigned long rtas_rmo_buf; diff --git a/include/asm-ppc/pci-bridge.h b/include/asm-ppc/pci-bridge.h index 6c955d0c1ef0..4d35b844bc58 100644 --- a/include/asm-ppc/pci-bridge.h +++ b/include/asm-ppc/pci-bridge.h @@ -20,8 +20,8 @@ extern unsigned long pci_bus_mem_base_phys(unsigned int bus); extern struct pci_controller* pcibios_alloc_controller(void); /* Helper function for setting up resources */ -extern void pci_init_resource(struct resource *res, unsigned long start, - unsigned long end, int flags, char *name); +extern void pci_init_resource(struct resource *res, resource_size_t start, + resource_size_t end, int flags, char *name); /* Get the PCI host controller for a bus */ extern struct pci_controller* pci_bus_to_hose(int bus); @@ -50,12 +50,12 @@ struct pci_controller { int bus_offset; void __iomem *io_base_virt; - unsigned long io_base_phys; + resource_size_t io_base_phys; /* Some machines (PReP) have a non 1:1 mapping of * the PCI memory space in the CPU bus space */ - unsigned long pci_mem_offset; + resource_size_t pci_mem_offset; struct pci_ops *ops; volatile unsigned int __iomem *cfg_addr; diff --git a/include/asm-ppc/pci.h b/include/asm-ppc/pci.h index 11ffaaa5da16..9d162028dab9 100644 --- a/include/asm-ppc/pci.h +++ b/include/asm-ppc/pci.h @@ -61,6 +61,27 @@ extern unsigned long pci_bus_to_phys(unsigned int ba, int busnr); */ #define PCI_DMA_BUS_IS_PHYS (1) +#ifdef CONFIG_NOT_COHERENT_CACHE +/* + * pci_unmap_{page,single} are NOPs but pci_dma_sync_single_for_cpu() + * and so on are not, so... + */ + +#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \ + dma_addr_t ADDR_NAME; +#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \ + __u32 LEN_NAME; +#define pci_unmap_addr(PTR, ADDR_NAME) \ + ((PTR)->ADDR_NAME) +#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \ + (((PTR)->ADDR_NAME) = (VAL)) +#define pci_unmap_len(PTR, LEN_NAME) \ + ((PTR)->LEN_NAME) +#define pci_unmap_len_set(PTR, LEN_NAME, VAL) \ + (((PTR)->LEN_NAME) = (VAL)) + +#else /* coherent */ + /* pci_unmap_{page,single} is a nop so... */ #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) @@ -69,6 +90,8 @@ extern unsigned long pci_bus_to_phys(unsigned int ba, int busnr); #define pci_unmap_len(PTR, LEN_NAME) (0) #define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0) +#endif /* CONFIG_NOT_COHERENT_CACHE */ + #ifdef CONFIG_PCI static inline void pci_dma_burst_advice(struct pci_dev *pdev, enum pci_dma_burst_strategy *strat, diff --git a/include/asm-ppc/reg_booke.h b/include/asm-ppc/reg_booke.h index 602fbadeaf48..a263fc1e65c4 100644 --- a/include/asm-ppc/reg_booke.h +++ b/include/asm-ppc/reg_booke.h @@ -9,41 +9,9 @@ #ifndef __ASM_PPC_REG_BOOKE_H__ #define __ASM_PPC_REG_BOOKE_H__ -#ifndef __ASSEMBLY__ -/* Device Control Registers */ -void __mtdcr(int reg, unsigned int val); -unsigned int __mfdcr(int reg); -#define mfdcr(rn) \ - ({unsigned int rval; \ - if (__builtin_constant_p(rn)) \ - asm volatile("mfdcr %0," __stringify(rn) \ - : "=r" (rval)); \ - else \ - rval = __mfdcr(rn); \ - rval;}) - -#define mtdcr(rn, v) \ -do { \ - if (__builtin_constant_p(rn)) \ - asm volatile("mtdcr " __stringify(rn) ",%0" \ - : : "r" (v)); \ - else \ - __mtdcr(rn, v); \ -} while (0) - -/* R/W of indirect DCRs make use of standard naming conventions for DCRs */ -#define mfdcri(base, reg) \ -({ \ - mtdcr(base ## _CFGADDR, base ## _ ## reg); \ - mfdcr(base ## _CFGDATA); \ -}) - -#define mtdcri(base, reg, data) \ -do { \ - mtdcr(base ## _CFGADDR, base ## _ ## reg); \ - mtdcr(base ## _CFGDATA, data); \ -} while (0) +#include <asm/dcr.h> +#ifndef __ASSEMBLY__ /* Performance Monitor Registers */ #define mfpmr(rn) ({unsigned int rval; \ asm volatile("mfpmr %0," __stringify(rn) \ diff --git a/include/linux/fsl_devices.h b/include/linux/fsl_devices.h index 3da29e2d524a..abb64c437f6f 100644 --- a/include/linux/fsl_devices.h +++ b/include/linux/fsl_devices.h @@ -19,6 +19,7 @@ #define _FSL_DEVICE_H_ #include <linux/types.h> +#include <linux/phy.h> /* * Some conventions on how we handle peripherals on Freescale chips |