diff options
Diffstat (limited to 'arch/parisc')
| -rw-r--r-- | arch/parisc/Kconfig | 4 | ||||
| -rw-r--r-- | arch/parisc/Makefile | 10 | ||||
| -rw-r--r-- | arch/parisc/hpux/gate.S | 2 | ||||
| -rw-r--r-- | arch/parisc/hpux/wrappers.S | 2 | ||||
| -rw-r--r-- | arch/parisc/kernel/entry.S | 2 | ||||
| -rw-r--r-- | arch/parisc/kernel/head.S | 2 | ||||
| -rw-r--r-- | arch/parisc/kernel/process.c | 2 | ||||
| -rw-r--r-- | arch/parisc/kernel/ptrace.c | 2 | ||||
| -rw-r--r-- | arch/parisc/kernel/signal.c | 2 | ||||
| -rw-r--r-- | arch/parisc/kernel/syscall.S | 2 | ||||
| -rw-r--r-- | arch/parisc/kernel/time.c | 5 | ||||
| -rw-r--r-- | arch/parisc/lib/Makefile | 2 | ||||
| -rw-r--r-- | arch/parisc/lib/bitops.c | 4 | ||||
| -rw-r--r-- | arch/parisc/lib/debuglocks.c | 277 | ||||
| -rw-r--r-- | arch/parisc/lib/fixup.S | 2 |
15 files changed, 17 insertions, 303 deletions
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig index 1c2d87435233..0b07922a2ac6 100644 --- a/arch/parisc/Kconfig +++ b/arch/parisc/Kconfig @@ -49,6 +49,10 @@ config ISA_DMA_API bool default y +config ARCH_MAY_HAVE_PC_FDC + bool + default y + source "init/Kconfig" diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile index 0403d2fcb85e..3b339b1cce13 100644 --- a/arch/parisc/Makefile +++ b/arch/parisc/Makefile @@ -100,15 +100,7 @@ kernel_install: vmlinux install: kernel_install modules_install -prepare: include/asm-parisc/offsets.h - -arch/parisc/kernel/asm-offsets.s: include/asm include/linux/version.h \ - include/config/MARKER - -include/asm-parisc/offsets.h: arch/parisc/kernel/asm-offsets.s - $(call filechk,gen-asm-offsets) - -CLEAN_FILES += lifimage include/asm-parisc/offsets.h +CLEAN_FILES += lifimage MRPROPER_FILES += palo.conf define archhelp diff --git a/arch/parisc/hpux/gate.S b/arch/parisc/hpux/gate.S index 2680a1c0fa77..aaaf3306c05a 100644 --- a/arch/parisc/hpux/gate.S +++ b/arch/parisc/hpux/gate.S @@ -9,7 +9,7 @@ */ #include <asm/assembly.h> -#include <asm/offsets.h> +#include <asm/asm-offsets.h> #include <asm/unistd.h> #include <asm/errno.h> diff --git a/arch/parisc/hpux/wrappers.S b/arch/parisc/hpux/wrappers.S index 1aa936dfe147..0b0c3a66b1be 100644 --- a/arch/parisc/hpux/wrappers.S +++ b/arch/parisc/hpux/wrappers.S @@ -24,7 +24,7 @@ #warning PA64 support needs more work...did first cut #endif -#include <asm/offsets.h> +#include <asm/asm-offsets.h> #include <asm/assembly.h> #include <asm/signal.h> diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S index ee58d37dbb27..be0f07f2fa58 100644 --- a/arch/parisc/kernel/entry.S +++ b/arch/parisc/kernel/entry.S @@ -23,7 +23,7 @@ */ #include <linux/config.h> -#include <asm/offsets.h> +#include <asm/asm-offsets.h> /* we have the following possibilities to act on an interruption: * - handle in assembly and use shadowed registers only diff --git a/arch/parisc/kernel/head.S b/arch/parisc/kernel/head.S index ddf7e914f15e..28405edf8448 100644 --- a/arch/parisc/kernel/head.S +++ b/arch/parisc/kernel/head.S @@ -14,7 +14,7 @@ #include <linux/autoconf.h> /* for CONFIG_SMP */ -#include <asm/offsets.h> +#include <asm/asm-offsets.h> #include <asm/psw.h> #include <asm/pdc.h> diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c index 4fc04501d5e5..46b759385115 100644 --- a/arch/parisc/kernel/process.c +++ b/arch/parisc/kernel/process.c @@ -47,7 +47,7 @@ #include <linux/kallsyms.h> #include <asm/io.h> -#include <asm/offsets.h> +#include <asm/asm-offsets.h> #include <asm/pdc.h> #include <asm/pdc_chassis.h> #include <asm/pgalloc.h> diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c index c07db9dff7cd..f3428e5e86fb 100644 --- a/arch/parisc/kernel/ptrace.c +++ b/arch/parisc/kernel/ptrace.c @@ -23,7 +23,7 @@ #include <asm/pgtable.h> #include <asm/system.h> #include <asm/processor.h> -#include <asm/offsets.h> +#include <asm/asm-offsets.h> /* PSW bits we allow the debugger to modify */ #define USER_PSW_BITS (PSW_N | PSW_V | PSW_CB) diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c index 55d71c15e1f7..0224651fd8f1 100644 --- a/arch/parisc/kernel/signal.c +++ b/arch/parisc/kernel/signal.c @@ -32,7 +32,7 @@ #include <asm/uaccess.h> #include <asm/pgalloc.h> #include <asm/cacheflush.h> -#include <asm/offsets.h> +#include <asm/asm-offsets.h> #ifdef CONFIG_COMPAT #include <linux/compat.h> diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S index 32ea701f4d20..8c7a7185cd3b 100644 --- a/arch/parisc/kernel/syscall.S +++ b/arch/parisc/kernel/syscall.S @@ -7,7 +7,7 @@ * sorry about the wall, puffin.. */ -#include <asm/offsets.h> +#include <asm/asm-offsets.h> #include <asm/unistd.h> #include <asm/errno.h> #include <asm/psw.h> diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c index 6cf7407344ba..7ff67f8e9f8c 100644 --- a/arch/parisc/kernel/time.c +++ b/arch/parisc/kernel/time.c @@ -188,10 +188,7 @@ do_settimeofday (struct timespec *tv) set_normalized_timespec(&xtime, sec, nsec); set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec); - time_adjust = 0; /* stop active adjtime() */ - time_status |= STA_UNSYNC; - time_maxerror = NTP_PHASE_LIMIT; - time_esterror = NTP_PHASE_LIMIT; + ntp_clear(); } write_sequnlock_irq(&xtime_lock); clock_was_set(); diff --git a/arch/parisc/lib/Makefile b/arch/parisc/lib/Makefile index 7bf705676297..5f2e6904d14a 100644 --- a/arch/parisc/lib/Makefile +++ b/arch/parisc/lib/Makefile @@ -5,5 +5,3 @@ lib-y := lusercopy.o bitops.o checksum.o io.o memset.o fixup.o memcpy.o obj-y := iomap.o - -lib-$(CONFIG_SMP) += debuglocks.o diff --git a/arch/parisc/lib/bitops.c b/arch/parisc/lib/bitops.c index 2de182f6fe8a..90f400b10282 100644 --- a/arch/parisc/lib/bitops.c +++ b/arch/parisc/lib/bitops.c @@ -13,8 +13,8 @@ #include <asm/atomic.h> #ifdef CONFIG_SMP -spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned = { - [0 ... (ATOMIC_HASH_SIZE-1)] = SPIN_LOCK_UNLOCKED +raw_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned = { + [0 ... (ATOMIC_HASH_SIZE-1)] = __RAW_SPIN_LOCK_UNLOCKED }; #endif diff --git a/arch/parisc/lib/debuglocks.c b/arch/parisc/lib/debuglocks.c deleted file mode 100644 index 1b33fe6e5b7a..000000000000 --- a/arch/parisc/lib/debuglocks.c +++ /dev/null @@ -1,277 +0,0 @@ -/* - * Debugging versions of SMP locking primitives. - * - * Copyright (C) 2004 Thibaut VARENE <varenet@parisc-linux.org> - * - * Some code stollen from alpha & sparc64 ;) - * - * 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. - * - * 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 - * - * We use pdc_printf() throughout the file for all output messages, to avoid - * losing messages because of disabled interrupts. Since we're using these - * messages for debugging purposes, it makes sense not to send them to the - * linux console. - */ - - -#include <linux/config.h> -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/spinlock.h> -#include <linux/hardirq.h> /* in_interrupt() */ -#include <asm/system.h> -#include <asm/hardirq.h> /* in_interrupt() */ -#include <asm/pdc.h> - -#undef INIT_STUCK -#define INIT_STUCK 1L << 30 - -#ifdef CONFIG_DEBUG_SPINLOCK - - -void _dbg_spin_lock(spinlock_t * lock, const char *base_file, int line_no) -{ - volatile unsigned int *a; - long stuck = INIT_STUCK; - void *inline_pc = __builtin_return_address(0); - unsigned long started = jiffies; - int printed = 0; - int cpu = smp_processor_id(); - -try_again: - - /* Do the actual locking */ - /* <T-Bone> ggg: we can't get stuck on the outter loop? - * <ggg> T-Bone: We can hit the outer loop - * alot if multiple CPUs are constantly racing for a lock - * and the backplane is NOT fair about which CPU sees - * the update first. But it won't hang since every failed - * attempt will drop us back into the inner loop and - * decrement `stuck'. - * <ggg> K-class and some of the others are NOT fair in the HW - * implementation so we could see false positives. - * But fixing the lock contention is easier than - * fixing the HW to be fair. - * <tausq> __ldcw() returns 1 if we get the lock; otherwise we - * spin until the value of the lock changes, or we time out. - */ - mb(); - a = __ldcw_align(lock); - while (stuck && (__ldcw(a) == 0)) - while ((*a == 0) && --stuck); - mb(); - - if (unlikely(stuck <= 0)) { - pdc_printf( - "%s:%d: spin_lock(%s/%p) stuck in %s at %p(%d)" - " owned by %s:%d in %s at %p(%d)\n", - base_file, line_no, lock->module, lock, - current->comm, inline_pc, cpu, - lock->bfile, lock->bline, lock->task->comm, - lock->previous, lock->oncpu); - stuck = INIT_STUCK; - printed = 1; - goto try_again; - } - - /* Exiting. Got the lock. */ - lock->oncpu = cpu; - lock->previous = inline_pc; - lock->task = current; - lock->bfile = (char *)base_file; - lock->bline = line_no; - - if (unlikely(printed)) { - pdc_printf( - "%s:%d: spin_lock grabbed in %s at %p(%d) %ld ticks\n", - base_file, line_no, current->comm, inline_pc, - cpu, jiffies - started); - } -} - -void _dbg_spin_unlock(spinlock_t * lock, const char *base_file, int line_no) -{ - CHECK_LOCK(lock); - volatile unsigned int *a; - mb(); - a = __ldcw_align(lock); - if (unlikely((*a != 0) && lock->babble)) { - lock->babble--; - pdc_printf( - "%s:%d: spin_unlock(%s:%p) not locked\n", - base_file, line_no, lock->module, lock); - } - *a = 1; - mb(); -} - -int _dbg_spin_trylock(spinlock_t * lock, const char *base_file, int line_no) -{ - int ret; - volatile unsigned int *a; - mb(); - a = __ldcw_align(lock); - ret = (__ldcw(a) != 0); - mb(); - if (ret) { - lock->oncpu = smp_processor_id(); - lock->previous = __builtin_return_address(0); - lock->task = current; - } else { - lock->bfile = (char *)base_file; - lock->bline = line_no; - } - return ret; -} - -#endif /* CONFIG_DEBUG_SPINLOCK */ - -#ifdef CONFIG_DEBUG_RWLOCK - -/* Interrupts trouble detailed explanation, thx Grant: - * - * o writer (wants to modify data) attempts to acquire the rwlock - * o He gets the write lock. - * o Interupts are still enabled, we take an interrupt with the - * write still holding the lock. - * o interrupt handler tries to acquire the rwlock for read. - * o deadlock since the writer can't release it at this point. - * - * In general, any use of spinlocks that competes between "base" - * level and interrupt level code will risk deadlock. Interrupts - * need to be disabled in the base level routines to avoid it. - * Or more precisely, only the IRQ the base level routine - * is competing with for the lock. But it's more efficient/faster - * to just disable all interrupts on that CPU to guarantee - * once it gets the lock it can release it quickly too. - */ - -void _dbg_write_lock(rwlock_t *rw, const char *bfile, int bline) -{ - void *inline_pc = __builtin_return_address(0); - unsigned long started = jiffies; - long stuck = INIT_STUCK; - int printed = 0; - int cpu = smp_processor_id(); - - if(unlikely(in_interrupt())) { /* acquiring write lock in interrupt context, bad idea */ - pdc_printf("write_lock caller: %s:%d, IRQs enabled,\n", bfile, bline); - BUG(); - } - - /* Note: if interrupts are disabled (which is most likely), the printk - will never show on the console. We might need a polling method to flush - the dmesg buffer anyhow. */ - -retry: - _raw_spin_lock(&rw->lock); - - if(rw->counter != 0) { - /* this basically never happens */ - _raw_spin_unlock(&rw->lock); - - stuck--; - if ((unlikely(stuck <= 0)) && (rw->counter < 0)) { - pdc_printf( - "%s:%d: write_lock stuck on writer" - " in %s at %p(%d) %ld ticks\n", - bfile, bline, current->comm, inline_pc, - cpu, jiffies - started); - stuck = INIT_STUCK; - printed = 1; - } - else if (unlikely(stuck <= 0)) { - pdc_printf( - "%s:%d: write_lock stuck on reader" - " in %s at %p(%d) %ld ticks\n", - bfile, bline, current->comm, inline_pc, - cpu, jiffies - started); - stuck = INIT_STUCK; - printed = 1; - } - - while(rw->counter != 0); - - goto retry; - } - - /* got it. now leave without unlocking */ - rw->counter = -1; /* remember we are locked */ - - if (unlikely(printed)) { - pdc_printf( - "%s:%d: write_lock grabbed in %s at %p(%d) %ld ticks\n", - bfile, bline, current->comm, inline_pc, - cpu, jiffies - started); - } -} - -int _dbg_write_trylock(rwlock_t *rw, const char *bfile, int bline) -{ -#if 0 - void *inline_pc = __builtin_return_address(0); - int cpu = smp_processor_id(); -#endif - - if(unlikely(in_interrupt())) { /* acquiring write lock in interrupt context, bad idea */ - pdc_printf("write_lock caller: %s:%d, IRQs enabled,\n", bfile, bline); - BUG(); - } - - /* Note: if interrupts are disabled (which is most likely), the printk - will never show on the console. We might need a polling method to flush - the dmesg buffer anyhow. */ - - _raw_spin_lock(&rw->lock); - - if(rw->counter != 0) { - /* this basically never happens */ - _raw_spin_unlock(&rw->lock); - return 0; - } - - /* got it. now leave without unlocking */ - rw->counter = -1; /* remember we are locked */ -#if 0 - pdc_printf("%s:%d: try write_lock grabbed in %s at %p(%d)\n", - bfile, bline, current->comm, inline_pc, cpu); -#endif - return 1; -} - -void _dbg_read_lock(rwlock_t * rw, const char *bfile, int bline) -{ -#if 0 - void *inline_pc = __builtin_return_address(0); - unsigned long started = jiffies; - int cpu = smp_processor_id(); -#endif - unsigned long flags; - - local_irq_save(flags); - _raw_spin_lock(&rw->lock); - - rw->counter++; -#if 0 - pdc_printf( - "%s:%d: read_lock grabbed in %s at %p(%d) %ld ticks\n", - bfile, bline, current->comm, inline_pc, - cpu, jiffies - started); -#endif - _raw_spin_unlock(&rw->lock); - local_irq_restore(flags); -} - -#endif /* CONFIG_DEBUG_RWLOCK */ diff --git a/arch/parisc/lib/fixup.S b/arch/parisc/lib/fixup.S index 134f0cd240f5..1b91612ed964 100644 --- a/arch/parisc/lib/fixup.S +++ b/arch/parisc/lib/fixup.S @@ -20,7 +20,7 @@ * Fixup routines for kernel exception handling. */ #include <linux/config.h> -#include <asm/offsets.h> +#include <asm/asm-offsets.h> #include <asm/assembly.h> #include <asm/errno.h> |
