diff options
Diffstat (limited to 'arch/parisc')
| -rw-r--r-- | arch/parisc/Kconfig | 4 | ||||
| -rw-r--r-- | arch/parisc/hpux/fs.c | 30 | ||||
| -rw-r--r-- | arch/parisc/hpux/sys_hpux.c | 12 | ||||
| -rw-r--r-- | arch/parisc/kernel/binfmt_elf32.c | 2 | ||||
| -rw-r--r-- | arch/parisc/kernel/cache.c | 6 | ||||
| -rw-r--r-- | arch/parisc/kernel/module.c | 14 | ||||
| -rw-r--r-- | arch/parisc/kernel/perf.c | 4 | ||||
| -rw-r--r-- | arch/parisc/kernel/smp.c | 136 | ||||
| -rw-r--r-- | arch/parisc/kernel/sys_parisc32.c | 105 | ||||
| -rw-r--r-- | arch/parisc/kernel/syscall_table.S | 4 | ||||
| -rw-r--r-- | arch/parisc/kernel/vmlinux.lds.S | 1 | ||||
| -rw-r--r-- | arch/parisc/mm/init.c | 7 |
12 files changed, 75 insertions, 250 deletions
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig index bc7a19da6245..8313fccced5e 100644 --- a/arch/parisc/Kconfig +++ b/arch/parisc/Kconfig @@ -76,9 +76,6 @@ config IRQ_PER_CPU bool default y -config ARCH_SUPPORTS_AOUT - def_bool y - # unless you want to implement ACPI on PA-RISC ... ;-) config PM bool @@ -199,6 +196,7 @@ endchoice config SMP bool "Symmetric multi-processing support" + select USE_GENERIC_SMP_HELPERS ---help--- This enables support for systems with more than one CPU. If you have a system with only one CPU, like most personal computers, say N. If diff --git a/arch/parisc/hpux/fs.c b/arch/parisc/hpux/fs.c index 1263f00dc35d..12c04c5e558b 100644 --- a/arch/parisc/hpux/fs.c +++ b/arch/parisc/hpux/fs.c @@ -84,22 +84,28 @@ static int filldir(void * __buf, const char * name, int namlen, loff_t offset, if (reclen > buf->count) return -EINVAL; d_ino = ino; - if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) + if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) { + buf->error = -EOVERFLOW; return -EOVERFLOW; + } dirent = buf->previous; if (dirent) - put_user(offset, &dirent->d_off); + if (put_user(offset, &dirent->d_off)) + goto Efault; dirent = buf->current_dir; + if (put_user(d_ino, &dirent->d_ino) || + put_user(reclen, &dirent->d_reclen) || + put_user(namlen, &dirent->d_namlen) || + copy_to_user(dirent->d_name, name, namlen) || + put_user(0, dirent->d_name + namlen)) + goto Efault; buf->previous = dirent; - put_user(d_ino, &dirent->d_ino); - put_user(reclen, &dirent->d_reclen); - put_user(namlen, &dirent->d_namlen); - copy_to_user(dirent->d_name, name, namlen); - put_user(0, dirent->d_name + namlen); - dirent = (void __user *)dirent + reclen; - buf->current_dir = dirent; + buf->current_dir = (void __user *)dirent + reclen; buf->count -= reclen; return 0; +Efault: + buf->error = -EFAULT; + return -EFAULT; } #undef NAME_OFFSET @@ -126,8 +132,10 @@ int hpux_getdents(unsigned int fd, struct hpux_dirent __user *dirent, unsigned i error = buf.error; lastdirent = buf.previous; if (lastdirent) { - put_user(file->f_pos, &lastdirent->d_off); - error = count - buf.count; + if (put_user(file->f_pos, &lastdirent->d_off)) + error = -EFAULT; + else + error = count - buf.count; } out_putf: diff --git a/arch/parisc/hpux/sys_hpux.c b/arch/parisc/hpux/sys_hpux.c index 0c5b9dabb475..18072e03a019 100644 --- a/arch/parisc/hpux/sys_hpux.c +++ b/arch/parisc/hpux/sys_hpux.c @@ -210,19 +210,19 @@ static int vfs_statfs_hpux(struct dentry *dentry, struct hpux_statfs *buf) } /* hpux statfs */ -asmlinkage long hpux_statfs(const char __user *path, +asmlinkage long hpux_statfs(const char __user *pathname, struct hpux_statfs __user *buf) { - struct nameidata nd; + struct path path; int error; - error = user_path_walk(path, &nd); + error = user_path(pathname, &path); if (!error) { struct hpux_statfs tmp; - error = vfs_statfs_hpux(nd.path.dentry, &tmp); + error = vfs_statfs_hpux(path.dentry, &tmp); if (!error && copy_to_user(buf, &tmp, sizeof(tmp))) error = -EFAULT; - path_put(&nd.path); + path_put(&path); } return error; } @@ -448,7 +448,7 @@ int hpux_pipe(int *kstack_fildes) int error; lock_kernel(); - error = do_pipe(kstack_fildes); + error = do_pipe_flags(kstack_fildes, 0); unlock_kernel(); return error; } diff --git a/arch/parisc/kernel/binfmt_elf32.c b/arch/parisc/kernel/binfmt_elf32.c index ecb10a4f63c6..f61692d2b557 100644 --- a/arch/parisc/kernel/binfmt_elf32.c +++ b/arch/parisc/kernel/binfmt_elf32.c @@ -85,7 +85,7 @@ struct elf_prpsinfo32 * could set a processor dependent flag in the thread_struct. */ -#define SET_PERSONALITY(ex, ibcs2) \ +#define SET_PERSONALITY(ex) \ set_thread_flag(TIF_32BIT); \ current->thread.map_base = DEFAULT_MAP_BASE32; \ current->thread.task_size = DEFAULT_TASK_SIZE32 \ diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c index e10d25d2d9c9..5259d8c20676 100644 --- a/arch/parisc/kernel/cache.c +++ b/arch/parisc/kernel/cache.c @@ -51,12 +51,12 @@ static struct pdc_btlb_info btlb_info __read_mostly; void flush_data_cache(void) { - on_each_cpu(flush_data_cache_local, NULL, 1, 1); + on_each_cpu(flush_data_cache_local, NULL, 1); } void flush_instruction_cache(void) { - on_each_cpu(flush_instruction_cache_local, NULL, 1, 1); + on_each_cpu(flush_instruction_cache_local, NULL, 1); } #endif @@ -515,7 +515,7 @@ static void cacheflush_h_tmp_function(void *dummy) void flush_cache_all(void) { - on_each_cpu(cacheflush_h_tmp_function, NULL, 1, 1); + on_each_cpu(cacheflush_h_tmp_function, NULL, 1); } void flush_cache_mm(struct mm_struct *mm) diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c index fdacdd4341c9..44138c3e6ea7 100644 --- a/arch/parisc/kernel/module.c +++ b/arch/parisc/kernel/module.c @@ -47,7 +47,9 @@ #include <linux/string.h> #include <linux/kernel.h> #include <linux/bug.h> +#include <linux/uaccess.h> +#include <asm/sections.h> #include <asm/unwind.h> #if 0 @@ -860,3 +862,15 @@ void module_arch_cleanup(struct module *mod) deregister_unwind_table(mod); module_bug_cleanup(mod); } + +#ifdef CONFIG_64BIT +void *dereference_function_descriptor(void *ptr) +{ + Elf64_Fdesc *desc = ptr; + void *p; + + if (!probe_kernel_address(&desc->addr, p)) + ptr = p; + return ptr; +} +#endif diff --git a/arch/parisc/kernel/perf.c b/arch/parisc/kernel/perf.c index 89d6d5ad44b5..f696f57faa15 100644 --- a/arch/parisc/kernel/perf.c +++ b/arch/parisc/kernel/perf.c @@ -46,6 +46,7 @@ #include <linux/init.h> #include <linux/proc_fs.h> #include <linux/miscdevice.h> +#include <linux/smp_lock.h> #include <linux/spinlock.h> #include <asm/uaccess.h> @@ -260,13 +261,16 @@ printk("Preparing to start counters\n"); */ static int perf_open(struct inode *inode, struct file *file) { + lock_kernel(); spin_lock(&perf_lock); if (perf_enabled) { spin_unlock(&perf_lock); + unlock_kernel(); return -EBUSY; } perf_enabled = 1; spin_unlock(&perf_lock); + unlock_kernel(); return 0; } diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c index 85fc7754ec25..d47f3975c9c6 100644 --- a/arch/parisc/kernel/smp.c +++ b/arch/parisc/kernel/smp.c @@ -84,19 +84,11 @@ EXPORT_SYMBOL(cpu_possible_map); DEFINE_PER_CPU(spinlock_t, ipi_lock) = SPIN_LOCK_UNLOCKED; -struct smp_call_struct { - void (*func) (void *info); - void *info; - long wait; - atomic_t unstarted_count; - atomic_t unfinished_count; -}; -static volatile struct smp_call_struct *smp_call_function_data; - enum ipi_message_type { IPI_NOP=0, IPI_RESCHEDULE=1, IPI_CALL_FUNC, + IPI_CALL_FUNC_SINGLE, IPI_CPU_START, IPI_CPU_STOP, IPI_CPU_TEST @@ -187,33 +179,12 @@ ipi_interrupt(int irq, void *dev_id) case IPI_CALL_FUNC: smp_debug(100, KERN_DEBUG "CPU%d IPI_CALL_FUNC\n", this_cpu); - { - volatile struct smp_call_struct *data; - void (*func)(void *info); - void *info; - int wait; - - data = smp_call_function_data; - func = data->func; - info = data->info; - wait = data->wait; - - mb(); - atomic_dec ((atomic_t *)&data->unstarted_count); - - /* At this point, *data can't - * be relied upon. - */ - - (*func)(info); - - /* Notify the sending CPU that the - * task is done. - */ - mb(); - if (wait) - atomic_dec ((atomic_t *)&data->unfinished_count); - } + generic_smp_call_function_interrupt(); + break; + + case IPI_CALL_FUNC_SINGLE: + smp_debug(100, KERN_DEBUG "CPU%d IPI_CALL_FUNC_SINGLE\n", this_cpu); + generic_smp_call_function_single_interrupt(); break; case IPI_CPU_START: @@ -256,6 +227,14 @@ ipi_send(int cpu, enum ipi_message_type op) spin_unlock_irqrestore(lock, flags); } +static void +send_IPI_mask(cpumask_t mask, enum ipi_message_type op) +{ + int cpu; + + for_each_cpu_mask(cpu, mask) + ipi_send(cpu, op); +} static inline void send_IPI_single(int dest_cpu, enum ipi_message_type op) @@ -295,86 +274,15 @@ smp_send_all_nop(void) send_IPI_allbutself(IPI_NOP); } - -/** - * Run a function on all other CPUs. - * <func> The function to run. This must be fast and non-blocking. - * <info> An arbitrary pointer to pass to the function. - * <retry> If true, keep retrying until ready. - * <wait> If true, wait until function has completed on other CPUs. - * [RETURNS] 0 on success, else a negative status code. - * - * Does not return until remote CPUs are nearly ready to execute <func> - * or have executed. - */ - -int -smp_call_function (void (*func) (void *info), void *info, int retry, int wait) +void arch_send_call_function_ipi(cpumask_t mask) { - struct smp_call_struct data; - unsigned long timeout; - static DEFINE_SPINLOCK(lock); - int retries = 0; - - if (num_online_cpus() < 2) - return 0; - - /* Can deadlock when called with interrupts disabled */ - WARN_ON(irqs_disabled()); - - /* can also deadlock if IPIs are disabled */ - WARN_ON((get_eiem() & (1UL<<(CPU_IRQ_MAX - IPI_IRQ))) == 0); - - - data.func = func; - data.info = info; - data.wait = wait; - atomic_set(&data.unstarted_count, num_online_cpus() - 1); - atomic_set(&data.unfinished_count, num_online_cpus() - 1); - - if (retry) { - spin_lock (&lock); - while (smp_call_function_data != 0) - barrier(); - } - else { - spin_lock (&lock); - if (smp_call_function_data) { - spin_unlock (&lock); - return -EBUSY; - } - } - - smp_call_function_data = &data; - spin_unlock (&lock); - - /* Send a message to all other CPUs and wait for them to respond */ - send_IPI_allbutself(IPI_CALL_FUNC); - - retry: - /* Wait for response */ - timeout = jiffies + HZ; - while ( (atomic_read (&data.unstarted_count) > 0) && - time_before (jiffies, timeout) ) - barrier (); - - if (atomic_read (&data.unstarted_count) > 0) { - printk(KERN_CRIT "SMP CALL FUNCTION TIMED OUT! (cpu=%d), try %d\n", - smp_processor_id(), ++retries); - goto retry; - } - /* We either got one or timed out. Release the lock */ - - mb(); - smp_call_function_data = NULL; - - while (wait && atomic_read (&data.unfinished_count) > 0) - barrier (); - - return 0; + send_IPI_mask(mask, IPI_CALL_FUNC); } -EXPORT_SYMBOL(smp_call_function); +void arch_send_call_function_single_ipi(int cpu) +{ + send_IPI_single(cpu, IPI_CALL_FUNC_SINGLE); +} /* * Flush all other CPU's tlb and then mine. Do this with on_each_cpu() @@ -384,7 +292,7 @@ EXPORT_SYMBOL(smp_call_function); void smp_flush_tlb_all(void) { - on_each_cpu(flush_tlb_all_local, NULL, 1, 1); + on_each_cpu(flush_tlb_all_local, NULL, 1); } /* diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c index 71efd6a28e2a..0838155b7a88 100644 --- a/arch/parisc/kernel/sys_parisc32.c +++ b/arch/parisc/kernel/sys_parisc32.c @@ -179,111 +179,6 @@ asmlinkage long sys32_sched_rr_get_interval(pid_t pid, return ret; } -static int -put_compat_timeval(struct compat_timeval __user *u, struct timeval *t) -{ - struct compat_timeval t32; - t32.tv_sec = t->tv_sec; - t32.tv_usec = t->tv_usec; - return copy_to_user(u, &t32, sizeof t32); -} - -static inline long get_ts32(struct timespec *o, struct compat_timeval __user *i) -{ - long usec; - - if (__get_user(o->tv_sec, &i->tv_sec)) - return -EFAULT; - if (__get_user(usec, &i->tv_usec)) - return -EFAULT; - o->tv_nsec = usec * 1000; - return 0; -} - -asmlinkage int -sys32_gettimeofday(struct compat_timeval __user *tv, struct timezone __user *tz) -{ - extern void do_gettimeofday(struct timeval *tv); - - if (tv) { - struct timeval ktv; - do_gettimeofday(&ktv); - if (put_compat_timeval(tv, &ktv)) - return -EFAULT; - } - if (tz) { - extern struct timezone sys_tz; - if (copy_to_user(tz, &sys_tz, sizeof(sys_tz))) - return -EFAULT; - } - return 0; -} - -asmlinkage -int sys32_settimeofday(struct compat_timeval __user *tv, struct timezone __user *tz) -{ - struct timespec kts; - struct timezone ktz; - - if (tv) { - if (get_ts32(&kts, tv)) - return -EFAULT; - } - if (tz) { - if (copy_from_user(&ktz, tz, sizeof(ktz))) - return -EFAULT; - } - - return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL); -} - -int cp_compat_stat(struct kstat *stat, struct compat_stat __user *statbuf) -{ - compat_ino_t ino; - int err; - - if (stat->size > MAX_NON_LFS || !new_valid_dev(stat->dev) || - !new_valid_dev(stat->rdev)) - return -EOVERFLOW; - - ino = stat->ino; - if (sizeof(ino) < sizeof(stat->ino) && ino != stat->ino) - return -EOVERFLOW; - - err = put_user(new_encode_dev(stat->dev), &statbuf->st_dev); - err |= put_user(ino, &statbuf->st_ino); - err |= put_user(stat->mode, &statbuf->st_mode); - err |= put_user(stat->nlink, &statbuf->st_nlink); - err |= put_user(0, &statbuf->st_reserved1); - err |= put_user(0, &statbuf->st_reserved2); - err |= put_user(new_encode_dev(stat->rdev), &statbuf->st_rdev); - err |= put_user(stat->size, &statbuf->st_size); - err |= put_user(stat->atime.tv_sec, &statbuf->st_atime); - err |= put_user(stat->atime.tv_nsec, &statbuf->st_atime_nsec); - err |= put_user(stat->mtime.tv_sec, &statbuf->st_mtime); - err |= put_user(stat->mtime.tv_nsec, &statbuf->st_mtime_nsec); - err |= put_user(stat->ctime.tv_sec, &statbuf->st_ctime); - err |= put_user(stat->ctime.tv_nsec, &statbuf->st_ctime_nsec); - err |= put_user(stat->blksize, &statbuf->st_blksize); - err |= put_user(stat->blocks, &statbuf->st_blocks); - err |= put_user(0, &statbuf->__unused1); - err |= put_user(0, &statbuf->__unused2); - err |= put_user(0, &statbuf->__unused3); - err |= put_user(0, &statbuf->__unused4); - err |= put_user(0, &statbuf->__unused5); - err |= put_user(0, &statbuf->st_fstype); /* not avail */ - err |= put_user(0, &statbuf->st_realdev); /* not avail */ - err |= put_user(0, &statbuf->st_basemode); /* not avail */ - err |= put_user(0, &statbuf->st_spareshort); - err |= put_user(stat->uid, &statbuf->st_uid); - err |= put_user(stat->gid, &statbuf->st_gid); - err |= put_user(0, &statbuf->st_spare4[0]); - err |= put_user(0, &statbuf->st_spare4[1]); - err |= put_user(0, &statbuf->st_spare4[2]); - - return err; -} - /*** copied from mips64 ***/ /* * Ooo, nasty. We need here to frob 32-bit unsigned longs to diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S index 6b5ac38f5a99..c7e59f548817 100644 --- a/arch/parisc/kernel/syscall_table.S +++ b/arch/parisc/kernel/syscall_table.S @@ -149,8 +149,8 @@ ENTRY_COMP(getrlimit) ENTRY_COMP(getrusage) /* struct timeval and timezone are maybe?? consistent wide and narrow */ - ENTRY_DIFF(gettimeofday) - ENTRY_DIFF(settimeofday) + ENTRY_COMP(gettimeofday) + ENTRY_COMP(settimeofday) ENTRY_SAME(getgroups) /* 80 */ ENTRY_SAME(setgroups) /* struct socketaddr... */ diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S index 2e516b871752..1a3b6ccd3620 100644 --- a/arch/parisc/kernel/vmlinux.lds.S +++ b/arch/parisc/kernel/vmlinux.lds.S @@ -67,7 +67,6 @@ SECTIONS _etext = .; RODATA - BUG_TABLE /* writeable */ /* Make sure this is page aligned so diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c index ce0da689a89d..7c155c254e72 100644 --- a/arch/parisc/mm/init.c +++ b/arch/parisc/mm/init.c @@ -36,7 +36,6 @@ extern int data_start; #ifdef CONFIG_DISCONTIGMEM struct node_map_data node_data[MAX_NUMNODES] __read_mostly; -bootmem_data_t bmem_data[MAX_NUMNODES] __read_mostly; unsigned char pfnnid_map[PFNNID_MAP_MAX] __read_mostly; #endif @@ -262,7 +261,7 @@ static void __init setup_bootmem(void) #ifdef CONFIG_DISCONTIGMEM for (i = 0; i < MAX_PHYSMEM_RANGES; i++) { memset(NODE_DATA(i), 0, sizeof(pg_data_t)); - NODE_DATA(i)->bdata = &bmem_data[i]; + NODE_DATA(i)->bdata = &bootmem_node_data[i]; } memset(pfnnid_map, 0xff, sizeof(pfnnid_map)); @@ -888,7 +887,7 @@ void __init paging_init(void) } #endif - free_area_init_node(i, NODE_DATA(i), zones_size, + free_area_init_node(i, zones_size, pmem_ranges[i].start_pfn, NULL); } } @@ -1053,7 +1052,7 @@ void flush_tlb_all(void) do_recycle++; } spin_unlock(&sid_lock); - on_each_cpu(flush_tlb_all_local, NULL, 1, 1); + on_each_cpu(flush_tlb_all_local, NULL, 1); if (do_recycle) { spin_lock(&sid_lock); recycle_sids(recycle_ndirty,recycle_dirty_array); |