diff options
Diffstat (limited to 'arch/sparc')
| -rw-r--r-- | arch/sparc/Kconfig | 12 | ||||
| -rw-r--r-- | arch/sparc/kernel/led.c | 8 | ||||
| -rw-r--r-- | arch/sparc/kernel/pci_msi.c | 4 | ||||
| -rw-r--r-- | arch/sparc/kernel/smp_64.c | 103 | ||||
| -rw-r--r-- | arch/sparc/kernel/syscalls/syscall.tbl | 1 | ||||
| -rw-r--r-- | arch/sparc/kernel/traps_32.c | 4 | ||||
| -rw-r--r-- | arch/sparc/kernel/traps_64.c | 4 | ||||
| -rw-r--r-- | arch/sparc/mm/fault_32.c | 16 | ||||
| -rw-r--r-- | arch/sparc/mm/fault_64.c | 16 |
9 files changed, 29 insertions, 139 deletions
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index 66fc08646be5..1cab1b284f1a 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -97,6 +97,9 @@ config SPARC64 select PCI_DOMAINS if PCI select ARCH_HAS_GIGANTIC_PAGE select HAVE_SOFTIRQ_ON_OWN_STACK + select HAVE_SETUP_PER_CPU_AREA + select NEED_PER_CPU_EMBED_FIRST_CHUNK + select NEED_PER_CPU_PAGE_FIRST_CHUNK config ARCH_PROC_KCORE_TEXT def_bool y @@ -123,15 +126,6 @@ config AUDIT_ARCH bool default y -config HAVE_SETUP_PER_CPU_AREA - def_bool y if SPARC64 - -config NEED_PER_CPU_EMBED_FIRST_CHUNK - def_bool y if SPARC64 - -config NEED_PER_CPU_PAGE_FIRST_CHUNK - def_bool y if SPARC64 - config MMU bool default y diff --git a/arch/sparc/kernel/led.c b/arch/sparc/kernel/led.c index 3a66e62eb2a0..ab657b359789 100644 --- a/arch/sparc/kernel/led.c +++ b/arch/sparc/kernel/led.c @@ -114,18 +114,16 @@ static const struct proc_ops led_proc_ops = { }; #endif -static struct proc_dir_entry *led; - #define LED_VERSION "0.1" static int __init led_init(void) { timer_setup(&led_blink_timer, led_blink, 0); - led = proc_create("led", 0, NULL, &led_proc_ops); - if (!led) +#ifdef CONFIG_PROC_FS + if (!proc_create("led", 0, NULL, &led_proc_ops)) return -ENOMEM; - +#endif printk(KERN_INFO "led: version %s, Lars Kotthoff <metalhead@metalhead.ws>\n", LED_VERSION); diff --git a/arch/sparc/kernel/pci_msi.c b/arch/sparc/kernel/pci_msi.c index fb5899cbfa51..9ed11985768e 100644 --- a/arch/sparc/kernel/pci_msi.c +++ b/arch/sparc/kernel/pci_msi.c @@ -146,13 +146,13 @@ static int sparc64_setup_msi_irq(unsigned int *irq_p, msiqid = pick_msiq(pbm); err = ops->msi_setup(pbm, msiqid, msi, - (entry->msi_attrib.is_64 ? 1 : 0)); + (entry->pci.msi_attrib.is_64 ? 1 : 0)); if (err) goto out_msi_free; pbm->msi_irq_table[msi - pbm->msi_first] = *irq_p; - if (entry->msi_attrib.is_64) { + if (entry->pci.msi_attrib.is_64) { msg.address_hi = pbm->msi64_start >> 32; msg.address_lo = pbm->msi64_start & 0xffffffff; } else { diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c index b98a7bbe6728..a1f78e9ddaf3 100644 --- a/arch/sparc/kernel/smp_64.c +++ b/arch/sparc/kernel/smp_64.c @@ -1526,50 +1526,6 @@ void smp_send_stop(void) smp_call_function(stop_this_cpu, NULL, 0); } -/** - * pcpu_alloc_bootmem - NUMA friendly alloc_bootmem wrapper for percpu - * @cpu: cpu to allocate for - * @size: size allocation in bytes - * @align: alignment - * - * Allocate @size bytes aligned at @align for cpu @cpu. This wrapper - * does the right thing for NUMA regardless of the current - * configuration. - * - * RETURNS: - * Pointer to the allocated area on success, NULL on failure. - */ -static void * __init pcpu_alloc_bootmem(unsigned int cpu, size_t size, - size_t align) -{ - const unsigned long goal = __pa(MAX_DMA_ADDRESS); -#ifdef CONFIG_NUMA - int node = cpu_to_node(cpu); - void *ptr; - - if (!node_online(node) || !NODE_DATA(node)) { - ptr = memblock_alloc_from(size, align, goal); - pr_info("cpu %d has no node %d or node-local memory\n", - cpu, node); - pr_debug("per cpu data for cpu%d %lu bytes at %016lx\n", - cpu, size, __pa(ptr)); - } else { - ptr = memblock_alloc_try_nid(size, align, goal, - MEMBLOCK_ALLOC_ACCESSIBLE, node); - pr_debug("per cpu data for cpu%d %lu bytes on node%d at " - "%016lx\n", cpu, size, node, __pa(ptr)); - } - return ptr; -#else - return memblock_alloc_from(size, align, goal); -#endif -} - -static void __init pcpu_free_bootmem(void *ptr, size_t size) -{ - memblock_free(ptr, size); -} - static int __init pcpu_cpu_distance(unsigned int from, unsigned int to) { if (cpu_to_node(from) == cpu_to_node(to)) @@ -1578,57 +1534,9 @@ static int __init pcpu_cpu_distance(unsigned int from, unsigned int to) return REMOTE_DISTANCE; } -static void __init pcpu_populate_pte(unsigned long addr) +static int __init pcpu_cpu_to_node(int cpu) { - pgd_t *pgd = pgd_offset_k(addr); - p4d_t *p4d; - pud_t *pud; - pmd_t *pmd; - - if (pgd_none(*pgd)) { - pud_t *new; - - new = memblock_alloc_from(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE); - if (!new) - goto err_alloc; - pgd_populate(&init_mm, pgd, new); - } - - p4d = p4d_offset(pgd, addr); - if (p4d_none(*p4d)) { - pud_t *new; - - new = memblock_alloc_from(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE); - if (!new) - goto err_alloc; - p4d_populate(&init_mm, p4d, new); - } - - pud = pud_offset(p4d, addr); - if (pud_none(*pud)) { - pmd_t *new; - - new = memblock_alloc_from(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE); - if (!new) - goto err_alloc; - pud_populate(&init_mm, pud, new); - } - - pmd = pmd_offset(pud, addr); - if (!pmd_present(*pmd)) { - pte_t *new; - - new = memblock_alloc_from(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE); - if (!new) - goto err_alloc; - pmd_populate_kernel(&init_mm, pmd, new); - } - - return; - -err_alloc: - panic("%s: Failed to allocate %lu bytes align=%lx from=%lx\n", - __func__, PAGE_SIZE, PAGE_SIZE, PAGE_SIZE); + return cpu_to_node(cpu); } void __init setup_per_cpu_areas(void) @@ -1641,8 +1549,7 @@ void __init setup_per_cpu_areas(void) rc = pcpu_embed_first_chunk(PERCPU_MODULE_RESERVE, PERCPU_DYNAMIC_RESERVE, 4 << 20, pcpu_cpu_distance, - pcpu_alloc_bootmem, - pcpu_free_bootmem); + pcpu_cpu_to_node); if (rc) pr_warn("PERCPU: %s allocator failed (%d), " "falling back to page size\n", @@ -1650,9 +1557,7 @@ void __init setup_per_cpu_areas(void) } if (rc < 0) rc = pcpu_page_first_chunk(PERCPU_MODULE_RESERVE, - pcpu_alloc_bootmem, - pcpu_free_bootmem, - pcpu_populate_pte); + pcpu_cpu_to_node); if (rc < 0) panic("cannot initialize percpu area (err=%d)", rc); diff --git a/arch/sparc/kernel/syscalls/syscall.tbl b/arch/sparc/kernel/syscalls/syscall.tbl index 46adabcb1720..4398cc6fb68d 100644 --- a/arch/sparc/kernel/syscalls/syscall.tbl +++ b/arch/sparc/kernel/syscalls/syscall.tbl @@ -495,3 +495,4 @@ # 447 reserved for memfd_secret 448 common process_mrelease sys_process_mrelease 449 common futex_waitv sys_futex_waitv +450 common set_mempolicy_home_node sys_set_mempolicy_home_node diff --git a/arch/sparc/kernel/traps_32.c b/arch/sparc/kernel/traps_32.c index 5630e5a395e0..179aabfa712e 100644 --- a/arch/sparc/kernel/traps_32.c +++ b/arch/sparc/kernel/traps_32.c @@ -86,9 +86,7 @@ void __noreturn die_if_kernel(char *str, struct pt_regs *regs) } printk("Instruction DUMP:"); instruction_dump ((unsigned long *) regs->pc); - if(regs->psr & PSR_PS) - do_exit(SIGKILL); - do_exit(SIGSEGV); + make_task_dead((regs->psr & PSR_PS) ? SIGKILL : SIGSEGV); } void do_hw_interrupt(struct pt_regs *regs, unsigned long type) diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c index 6863025ed56d..21077821f427 100644 --- a/arch/sparc/kernel/traps_64.c +++ b/arch/sparc/kernel/traps_64.c @@ -2559,9 +2559,7 @@ void __noreturn die_if_kernel(char *str, struct pt_regs *regs) } if (panic_on_oops) panic("Fatal exception"); - if (regs->tstate & TSTATE_PRIV) - do_exit(SIGKILL); - do_exit(SIGSEGV); + make_task_dead((regs->tstate & TSTATE_PRIV)? SIGKILL : SIGSEGV); } EXPORT_SYMBOL(die_if_kernel); diff --git a/arch/sparc/mm/fault_32.c b/arch/sparc/mm/fault_32.c index 90dc4ae315c8..ad569d9bd124 100644 --- a/arch/sparc/mm/fault_32.c +++ b/arch/sparc/mm/fault_32.c @@ -200,17 +200,15 @@ good_area: BUG(); } - if (flags & FAULT_FLAG_ALLOW_RETRY) { - if (fault & VM_FAULT_RETRY) { - flags |= FAULT_FLAG_TRIED; + if (fault & VM_FAULT_RETRY) { + flags |= FAULT_FLAG_TRIED; - /* No need to mmap_read_unlock(mm) as we would - * have already released it in __lock_page_or_retry - * in mm/filemap.c. - */ + /* No need to mmap_read_unlock(mm) as we would + * have already released it in __lock_page_or_retry + * in mm/filemap.c. + */ - goto retry; - } + goto retry; } mmap_read_unlock(mm); diff --git a/arch/sparc/mm/fault_64.c b/arch/sparc/mm/fault_64.c index 9a9652a15fed..253e07043298 100644 --- a/arch/sparc/mm/fault_64.c +++ b/arch/sparc/mm/fault_64.c @@ -437,17 +437,15 @@ good_area: BUG(); } - if (flags & FAULT_FLAG_ALLOW_RETRY) { - if (fault & VM_FAULT_RETRY) { - flags |= FAULT_FLAG_TRIED; + if (fault & VM_FAULT_RETRY) { + flags |= FAULT_FLAG_TRIED; - /* No need to mmap_read_unlock(mm) as we would - * have already released it in __lock_page_or_retry - * in mm/filemap.c. - */ + /* No need to mmap_read_unlock(mm) as we would + * have already released it in __lock_page_or_retry + * in mm/filemap.c. + */ - goto retry; - } + goto retry; } mmap_read_unlock(mm); |