diff options
Diffstat (limited to 'arch/powerpc/kernel')
| -rw-r--r-- | arch/powerpc/kernel/Makefile | 2 | ||||
| -rw-r--r-- | arch/powerpc/kernel/pci-common.c | 34 | ||||
| -rw-r--r-- | arch/powerpc/kernel/ppc32.h | 2 | ||||
| -rw-r--r-- | arch/powerpc/kernel/ppc_ksyms.c | 1 | ||||
| -rw-r--r-- | arch/powerpc/kernel/ptrace32.c | 27 | ||||
| -rw-r--r-- | arch/powerpc/kernel/rtas.c | 1 | ||||
| -rw-r--r-- | arch/powerpc/kernel/semaphore.c | 135 | ||||
| -rw-r--r-- | arch/powerpc/kernel/setup_32.c | 8 | ||||
| -rw-r--r-- | arch/powerpc/kernel/sys_ppc32.c | 1 | ||||
| -rw-r--r-- | arch/powerpc/kernel/syscalls.c | 1 |
10 files changed, 2 insertions, 210 deletions
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile index 5183a9012a08..ce1e8d24e747 100644 --- a/arch/powerpc/kernel/Makefile +++ b/arch/powerpc/kernel/Makefile @@ -12,7 +12,7 @@ CFLAGS_prom_init.o += -fPIC CFLAGS_btext.o += -fPIC endif -obj-y := semaphore.o cputable.o ptrace.o syscalls.o \ +obj-y := cputable.o ptrace.o syscalls.o \ irq.o align.o signal_32.o pmc.o vdso.o \ init_task.o process.o systbl.o idle.o \ signal.o diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index 89c83ccb85c1..063cdd413049 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -1161,41 +1161,9 @@ EXPORT_SYMBOL_GPL(pcibios_claim_one_bus); int pcibios_enable_device(struct pci_dev *dev, int mask) { - u16 cmd, old_cmd; - int idx; - struct resource *r; - if (ppc_md.pcibios_enable_device_hook) if (ppc_md.pcibios_enable_device_hook(dev)) return -EINVAL; - pci_read_config_word(dev, PCI_COMMAND, &cmd); - old_cmd = cmd; - for (idx = 0; idx < PCI_NUM_RESOURCES; idx++) { - /* Only set up the requested stuff */ - if (!(mask & (1 << idx))) - continue; - r = &dev->resource[idx]; - if (!(r->flags & (IORESOURCE_IO | IORESOURCE_MEM))) - continue; - if ((idx == PCI_ROM_RESOURCE) && - (!(r->flags & IORESOURCE_ROM_ENABLE))) - continue; - if (r->parent == NULL) { - printk(KERN_ERR "PCI: Device %s not available because" - " of resource collisions\n", pci_name(dev)); - return -EINVAL; - } - if (r->flags & IORESOURCE_IO) - cmd |= PCI_COMMAND_IO; - if (r->flags & IORESOURCE_MEM) - cmd |= PCI_COMMAND_MEMORY; - } - if (cmd != old_cmd) { - printk("PCI: Enabling device %s (%04x -> %04x)\n", - pci_name(dev), old_cmd, cmd); - pci_write_config_word(dev, PCI_COMMAND, cmd); - } - return 0; + return pci_enable_resources(dev, mask); } - diff --git a/arch/powerpc/kernel/ppc32.h b/arch/powerpc/kernel/ppc32.h index fda05e2211d6..90e562771791 100644 --- a/arch/powerpc/kernel/ppc32.h +++ b/arch/powerpc/kernel/ppc32.h @@ -135,6 +135,4 @@ struct ucontext32 { struct mcontext32 uc_mcontext; }; -extern int copy_siginfo_to_user32(struct compat_siginfo __user *d, siginfo_t *s); - #endif /* _PPC64_PPC32_H */ diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c index b9b765c7d1a7..09fcb50c45ae 100644 --- a/arch/powerpc/kernel/ppc_ksyms.c +++ b/arch/powerpc/kernel/ppc_ksyms.c @@ -15,7 +15,6 @@ #include <linux/bitops.h> #include <asm/page.h> -#include <asm/semaphore.h> #include <asm/processor.h> #include <asm/cacheflush.h> #include <asm/uaccess.h> diff --git a/arch/powerpc/kernel/ptrace32.c b/arch/powerpc/kernel/ptrace32.c index 9d30e10970ac..4c1de6af4c09 100644 --- a/arch/powerpc/kernel/ptrace32.c +++ b/arch/powerpc/kernel/ptrace32.c @@ -29,15 +29,12 @@ #include <linux/security.h> #include <linux/signal.h> #include <linux/compat.h> -#include <linux/elf.h> #include <asm/uaccess.h> #include <asm/page.h> #include <asm/pgtable.h> #include <asm/system.h> -#include "ppc32.h" - /* * does not yet catch signals sent when the child dies. * in exit.c or in signal.c. @@ -67,27 +64,6 @@ static long compat_ptrace_old(struct task_struct *child, long request, return -EPERM; } -static int compat_ptrace_getsiginfo(struct task_struct *child, compat_siginfo_t __user *data) -{ - siginfo_t lastinfo; - int error = -ESRCH; - - read_lock(&tasklist_lock); - if (likely(child->sighand != NULL)) { - error = -EINVAL; - spin_lock_irq(&child->sighand->siglock); - if (likely(child->last_siginfo != NULL)) { - lastinfo = *child->last_siginfo; - error = 0; - } - spin_unlock_irq(&child->sighand->siglock); - } - read_unlock(&tasklist_lock); - if (!error) - return copy_siginfo_to_user32(data, &lastinfo); - return error; -} - long compat_arch_ptrace(struct task_struct *child, compat_long_t request, compat_ulong_t caddr, compat_ulong_t cdata) { @@ -306,9 +282,6 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request, 0, PT_REGS_COUNT * sizeof(compat_long_t), compat_ptr(data)); - case PTRACE_GETSIGINFO: - return compat_ptrace_getsiginfo(child, compat_ptr(data)); - case PTRACE_GETFPREGS: case PTRACE_SETFPREGS: case PTRACE_GETVRREGS: diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c index eb3beea4536e..34843c318419 100644 --- a/arch/powerpc/kernel/rtas.c +++ b/arch/powerpc/kernel/rtas.c @@ -27,7 +27,6 @@ #include <asm/prom.h> #include <asm/rtas.h> #include <asm/hvcall.h> -#include <asm/semaphore.h> #include <asm/machdep.h> #include <asm/firmware.h> #include <asm/page.h> diff --git a/arch/powerpc/kernel/semaphore.c b/arch/powerpc/kernel/semaphore.c deleted file mode 100644 index 2f8c3c951394..000000000000 --- a/arch/powerpc/kernel/semaphore.c +++ /dev/null @@ -1,135 +0,0 @@ -/* - * PowerPC-specific semaphore code. - * - * Copyright (C) 1999 Cort Dougan <cort@cs.nmt.edu> - * - * 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. - * - * April 2001 - Reworked by Paul Mackerras <paulus@samba.org> - * to eliminate the SMP races in the old version between the updates - * of `count' and `waking'. Now we use negative `count' values to - * indicate that some process(es) are waiting for the semaphore. - */ - -#include <linux/sched.h> -#include <linux/init.h> -#include <linux/module.h> - -#include <asm/atomic.h> -#include <asm/semaphore.h> -#include <asm/errno.h> - -/* - * Atomically update sem->count. - * This does the equivalent of the following: - * - * old_count = sem->count; - * tmp = MAX(old_count, 0) + incr; - * sem->count = tmp; - * return old_count; - */ -static inline int __sem_update_count(struct semaphore *sem, int incr) -{ - int old_count, tmp; - - __asm__ __volatile__("\n" -"1: lwarx %0,0,%3\n" -" srawi %1,%0,31\n" -" andc %1,%0,%1\n" -" add %1,%1,%4\n" - PPC405_ERR77(0,%3) -" stwcx. %1,0,%3\n" -" bne 1b" - : "=&r" (old_count), "=&r" (tmp), "=m" (sem->count) - : "r" (&sem->count), "r" (incr), "m" (sem->count) - : "cc"); - - return old_count; -} - -void __up(struct semaphore *sem) -{ - /* - * Note that we incremented count in up() before we came here, - * but that was ineffective since the result was <= 0, and - * any negative value of count is equivalent to 0. - * This ends up setting count to 1, unless count is now > 0 - * (i.e. because some other cpu has called up() in the meantime), - * in which case we just increment count. - */ - __sem_update_count(sem, 1); - wake_up(&sem->wait); -} -EXPORT_SYMBOL(__up); - -/* - * Note that when we come in to __down or __down_interruptible, - * we have already decremented count, but that decrement was - * ineffective since the result was < 0, and any negative value - * of count is equivalent to 0. - * Thus it is only when we decrement count from some value > 0 - * that we have actually got the semaphore. - */ -void __sched __down(struct semaphore *sem) -{ - struct task_struct *tsk = current; - DECLARE_WAITQUEUE(wait, tsk); - - __set_task_state(tsk, TASK_UNINTERRUPTIBLE); - add_wait_queue_exclusive(&sem->wait, &wait); - - /* - * Try to get the semaphore. If the count is > 0, then we've - * got the semaphore; we decrement count and exit the loop. - * If the count is 0 or negative, we set it to -1, indicating - * that we are asleep, and then sleep. - */ - while (__sem_update_count(sem, -1) <= 0) { - schedule(); - set_task_state(tsk, TASK_UNINTERRUPTIBLE); - } - remove_wait_queue(&sem->wait, &wait); - __set_task_state(tsk, TASK_RUNNING); - - /* - * If there are any more sleepers, wake one of them up so - * that it can either get the semaphore, or set count to -1 - * indicating that there are still processes sleeping. - */ - wake_up(&sem->wait); -} -EXPORT_SYMBOL(__down); - -int __sched __down_interruptible(struct semaphore * sem) -{ - int retval = 0; - struct task_struct *tsk = current; - DECLARE_WAITQUEUE(wait, tsk); - - __set_task_state(tsk, TASK_INTERRUPTIBLE); - add_wait_queue_exclusive(&sem->wait, &wait); - - while (__sem_update_count(sem, -1) <= 0) { - if (signal_pending(current)) { - /* - * A signal is pending - give up trying. - * Set sem->count to 0 if it is negative, - * since we are no longer sleeping. - */ - __sem_update_count(sem, 0); - retval = -EINTR; - break; - } - schedule(); - set_task_state(tsk, TASK_INTERRUPTIBLE); - } - remove_wait_queue(&sem->wait, &wait); - __set_task_state(tsk, TASK_RUNNING); - - wake_up(&sem->wait); - return retval; -} -EXPORT_SYMBOL(__down_interruptible); diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c index d813c394f0ff..36f6779c88d4 100644 --- a/arch/powerpc/kernel/setup_32.c +++ b/arch/powerpc/kernel/setup_32.c @@ -10,9 +10,6 @@ #include <linux/reboot.h> #include <linux/delay.h> #include <linux/initrd.h> -#if defined(CONFIG_IDE) || defined(CONFIG_IDE_MODULE) -#include <linux/ide.h> -#endif #include <linux/tty.h> #include <linux/bootmem.h> #include <linux/seq_file.h> @@ -51,11 +48,6 @@ extern void bootx_init(unsigned long r4, unsigned long phys); -#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE) -struct ide_machdep_calls ppc_ide_md; -EXPORT_SYMBOL(ppc_ide_md); -#endif - int boot_cpuid; EXPORT_SYMBOL_GPL(boot_cpuid); int boot_cpuid_phys; diff --git a/arch/powerpc/kernel/sys_ppc32.c b/arch/powerpc/kernel/sys_ppc32.c index 9c3371e6958e..709f8cb8bfca 100644 --- a/arch/powerpc/kernel/sys_ppc32.c +++ b/arch/powerpc/kernel/sys_ppc32.c @@ -47,7 +47,6 @@ #include <asm/types.h> #include <asm/uaccess.h> #include <asm/unistd.h> -#include <asm/semaphore.h> #include <asm/time.h> #include <asm/mmu_context.h> #include <asm/ppc-pci.h> diff --git a/arch/powerpc/kernel/syscalls.c b/arch/powerpc/kernel/syscalls.c index 3b1d5dd65643..e722a4eeb5d0 100644 --- a/arch/powerpc/kernel/syscalls.c +++ b/arch/powerpc/kernel/syscalls.c @@ -38,7 +38,6 @@ #include <linux/personality.h> #include <asm/uaccess.h> -#include <asm/semaphore.h> #include <asm/syscalls.h> #include <asm/time.h> #include <asm/unistd.h> |