diff options
Diffstat (limited to 'arch/frv')
-rw-r--r-- | arch/frv/kernel/Makefile | 2 | ||||
-rw-r--r-- | arch/frv/kernel/frv_ksyms.c | 1 | ||||
-rw-r--r-- | arch/frv/kernel/pm.c | 8 | ||||
-rw-r--r-- | arch/frv/kernel/semaphore.c | 155 | ||||
-rw-r--r-- | arch/frv/kernel/traps.c | 31 | ||||
-rw-r--r-- | arch/frv/mb93090-mb00/pci-frv.h | 2 | ||||
-rw-r--r-- | arch/frv/mb93090-mb00/pci-vdk.c | 53 | ||||
-rw-r--r-- | arch/frv/mm/highmem.c | 3 |
8 files changed, 17 insertions, 238 deletions
diff --git a/arch/frv/kernel/Makefile b/arch/frv/kernel/Makefile index e8f73ed28b52..c36f70b6699a 100644 --- a/arch/frv/kernel/Makefile +++ b/arch/frv/kernel/Makefile @@ -9,7 +9,7 @@ extra-y:= head.o init_task.o vmlinux.lds obj-y := $(heads-y) entry.o entry-table.o break.o switch_to.o kernel_thread.o \ kernel_execve.o process.o traps.o ptrace.o signal.o dma.o \ - sys_frv.o time.o semaphore.o setup.o frv_ksyms.o \ + sys_frv.o time.o setup.o frv_ksyms.o \ debug-stub.o irq.o sleep.o uaccess.o obj-$(CONFIG_GDBSTUB) += gdb-stub.o gdb-io.o diff --git a/arch/frv/kernel/frv_ksyms.c b/arch/frv/kernel/frv_ksyms.c index f772704b3d28..0316b3c50eff 100644 --- a/arch/frv/kernel/frv_ksyms.c +++ b/arch/frv/kernel/frv_ksyms.c @@ -12,7 +12,6 @@ #include <asm/pgalloc.h> #include <asm/irq.h> #include <asm/io.h> -#include <asm/semaphore.h> #include <asm/checksum.h> #include <asm/hardirq.h> #include <asm/cacheflush.h> diff --git a/arch/frv/kernel/pm.c b/arch/frv/kernel/pm.c index c57ce3f1f2e2..73f3aeefd203 100644 --- a/arch/frv/kernel/pm.c +++ b/arch/frv/kernel/pm.c @@ -163,14 +163,11 @@ static int sysctl_pm_do_suspend(ctl_table *ctl, int write, struct file *filp, if ((mode != 1) && (mode != 5)) return -EINVAL; - retval = pm_send_all(PM_SUSPEND, (void *)3); - if (retval == 0) { if (mode == 5) retval = pm_do_bus_sleep(); else retval = pm_do_suspend(); - pm_send_all(PM_RESUME, (void *)0); } return retval; @@ -183,9 +180,6 @@ static int try_set_cmode(int new_cmode) if (!(clock_cmodes_permitted & (1<<new_cmode))) return -EINVAL; - /* tell all the drivers we're suspending */ - pm_send_all(PM_SUSPEND, (void *)3); - /* now change cmode */ local_irq_disable(); frv_dma_pause_all(); @@ -201,8 +195,6 @@ static int try_set_cmode(int new_cmode) frv_dma_resume_all(); local_irq_enable(); - /* tell all the drivers we're resuming */ - pm_send_all(PM_RESUME, (void *)0); return 0; } diff --git a/arch/frv/kernel/semaphore.c b/arch/frv/kernel/semaphore.c deleted file mode 100644 index 7ee3a147b471..000000000000 --- a/arch/frv/kernel/semaphore.c +++ /dev/null @@ -1,155 +0,0 @@ -/* semaphore.c: FR-V semaphores - * - * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - Derived from lib/rwsem-spinlock.c - * - * 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/sched.h> -#include <linux/module.h> -#include <asm/semaphore.h> - -struct sem_waiter { - struct list_head list; - struct task_struct *task; -}; - -#ifdef CONFIG_DEBUG_SEMAPHORE -void semtrace(struct semaphore *sem, const char *str) -{ - if (sem->debug) - printk("[%d] %s({%d,%d})\n", - current->pid, - str, - sem->counter, - list_empty(&sem->wait_list) ? 0 : 1); -} -#else -#define semtrace(SEM,STR) do { } while(0) -#endif - -/* - * wait for a token to be granted from a semaphore - * - entered with lock held and interrupts disabled - */ -void __down(struct semaphore *sem, unsigned long flags) -{ - struct task_struct *tsk = current; - struct sem_waiter waiter; - - semtrace(sem, "Entering __down"); - - /* set up my own style of waitqueue */ - waiter.task = tsk; - get_task_struct(tsk); - - list_add_tail(&waiter.list, &sem->wait_list); - - /* we don't need to touch the semaphore struct anymore */ - spin_unlock_irqrestore(&sem->wait_lock, flags); - - /* wait to be given the semaphore */ - set_task_state(tsk, TASK_UNINTERRUPTIBLE); - - for (;;) { - if (list_empty(&waiter.list)) - break; - schedule(); - set_task_state(tsk, TASK_UNINTERRUPTIBLE); - } - - tsk->state = TASK_RUNNING; - semtrace(sem, "Leaving __down"); -} - -EXPORT_SYMBOL(__down); - -/* - * interruptibly wait for a token to be granted from a semaphore - * - entered with lock held and interrupts disabled - */ -int __down_interruptible(struct semaphore *sem, unsigned long flags) -{ - struct task_struct *tsk = current; - struct sem_waiter waiter; - int ret; - - semtrace(sem,"Entering __down_interruptible"); - - /* set up my own style of waitqueue */ - waiter.task = tsk; - get_task_struct(tsk); - - list_add_tail(&waiter.list, &sem->wait_list); - - /* we don't need to touch the semaphore struct anymore */ - set_task_state(tsk, TASK_INTERRUPTIBLE); - - spin_unlock_irqrestore(&sem->wait_lock, flags); - - /* wait to be given the semaphore */ - ret = 0; - for (;;) { - if (list_empty(&waiter.list)) - break; - if (unlikely(signal_pending(current))) - goto interrupted; - schedule(); - set_task_state(tsk, TASK_INTERRUPTIBLE); - } - - out: - tsk->state = TASK_RUNNING; - semtrace(sem, "Leaving __down_interruptible"); - return ret; - - interrupted: - spin_lock_irqsave(&sem->wait_lock, flags); - - if (!list_empty(&waiter.list)) { - list_del(&waiter.list); - ret = -EINTR; - } - - spin_unlock_irqrestore(&sem->wait_lock, flags); - if (ret == -EINTR) - put_task_struct(current); - goto out; -} - -EXPORT_SYMBOL(__down_interruptible); - -/* - * release a single token back to a semaphore - * - entered with lock held and interrupts disabled - */ -void __up(struct semaphore *sem) -{ - struct task_struct *tsk; - struct sem_waiter *waiter; - - semtrace(sem,"Entering __up"); - - /* grant the token to the process at the front of the queue */ - waiter = list_entry(sem->wait_list.next, struct sem_waiter, list); - - /* We must be careful not to touch 'waiter' after we set ->task = NULL. - * It is allocated on the waiter's stack and may become invalid at - * any time after that point (due to a wakeup from another source). - */ - list_del_init(&waiter->list); - tsk = waiter->task; - mb(); - waiter->task = NULL; - wake_up_process(tsk); - put_task_struct(tsk); - - semtrace(sem,"Leaving __up"); -} - -EXPORT_SYMBOL(__up); diff --git a/arch/frv/kernel/traps.c b/arch/frv/kernel/traps.c index 7089c2428b3f..a40df80b2ebd 100644 --- a/arch/frv/kernel/traps.c +++ b/arch/frv/kernel/traps.c @@ -49,7 +49,7 @@ asmlinkage void insn_access_error(unsigned long esfr1, unsigned long epcr0, unsi info.si_signo = SIGSEGV; info.si_code = SEGV_ACCERR; info.si_errno = 0; - info.si_addr = (void *) ((epcr0 & EPCR0_V) ? (epcr0 & EPCR0_PC) : __frame->pc); + info.si_addr = (void __user *) ((epcr0 & EPCR0_V) ? (epcr0 & EPCR0_PC) : __frame->pc); force_sig_info(info.si_signo, &info, current); } /* end insn_access_error() */ @@ -73,7 +73,7 @@ asmlinkage void illegal_instruction(unsigned long esfr1, unsigned long epcr0, un epcr0, esr0, esfr1); info.si_errno = 0; - info.si_addr = (void *) ((epcr0 & EPCR0_V) ? (epcr0 & EPCR0_PC) : __frame->pc); + info.si_addr = (void __user *) ((epcr0 & EPCR0_V) ? (epcr0 & EPCR0_PC) : __frame->pc); switch (__frame->tbr & TBR_TT) { case TBR_TT_ILLEGAL_INSTR: @@ -111,7 +111,8 @@ asmlinkage void atomic_operation(unsigned long esfr1, unsigned long epcr0, unsigned long esr0) { static DEFINE_SPINLOCK(atomic_op_lock); - unsigned long x, y, z, *p; + unsigned long x, y, z; + unsigned long __user *p; mm_segment_t oldfs; siginfo_t info; int ret; @@ -128,7 +129,7 @@ asmlinkage void atomic_operation(unsigned long esfr1, unsigned long epcr0, * u32 __atomic_user_cmpxchg32(u32 *ptr, u32 test, u32 new) */ case TBR_TT_ATOMIC_CMPXCHG32: - p = (unsigned long *) __frame->gr8; + p = (unsigned long __user *) __frame->gr8; x = __frame->gr9; y = __frame->gr10; @@ -158,7 +159,7 @@ asmlinkage void atomic_operation(unsigned long esfr1, unsigned long epcr0, * u32 __atomic_kernel_xchg32(void *v, u32 new) */ case TBR_TT_ATOMIC_XCHG32: - p = (unsigned long *) __frame->gr8; + p = (unsigned long __user *) __frame->gr8; y = __frame->gr9; for (;;) { @@ -181,7 +182,7 @@ asmlinkage void atomic_operation(unsigned long esfr1, unsigned long epcr0, * ulong __atomic_kernel_XOR_return(ulong i, ulong *v) */ case TBR_TT_ATOMIC_XOR: - p = (unsigned long *) __frame->gr8; + p = (unsigned long __user *) __frame->gr8; x = __frame->gr9; for (;;) { @@ -205,7 +206,7 @@ asmlinkage void atomic_operation(unsigned long esfr1, unsigned long epcr0, * ulong __atomic_kernel_OR_return(ulong i, ulong *v) */ case TBR_TT_ATOMIC_OR: - p = (unsigned long *) __frame->gr8; + p = (unsigned long __user *) __frame->gr8; x = __frame->gr9; for (;;) { @@ -229,7 +230,7 @@ asmlinkage void atomic_operation(unsigned long esfr1, unsigned long epcr0, * ulong __atomic_kernel_AND_return(ulong i, ulong *v) */ case TBR_TT_ATOMIC_AND: - p = (unsigned long *) __frame->gr8; + p = (unsigned long __user *) __frame->gr8; x = __frame->gr9; for (;;) { @@ -253,7 +254,7 @@ asmlinkage void atomic_operation(unsigned long esfr1, unsigned long epcr0, * int __atomic_user_sub_return(atomic_t *v, int i) */ case TBR_TT_ATOMIC_SUB: - p = (unsigned long *) __frame->gr8; + p = (unsigned long __user *) __frame->gr8; x = __frame->gr9; for (;;) { @@ -277,7 +278,7 @@ asmlinkage void atomic_operation(unsigned long esfr1, unsigned long epcr0, * int __atomic_user_add_return(atomic_t *v, int i) */ case TBR_TT_ATOMIC_ADD: - p = (unsigned long *) __frame->gr8; + p = (unsigned long __user *) __frame->gr8; x = __frame->gr9; for (;;) { @@ -322,7 +323,7 @@ error: info.si_signo = SIGSEGV; info.si_code = SEGV_ACCERR; info.si_errno = 0; - info.si_addr = (void *) __frame->pc; + info.si_addr = (void __user *) __frame->pc; force_sig_info(info.si_signo, &info, current); } @@ -343,7 +344,7 @@ asmlinkage void media_exception(unsigned long msr0, unsigned long msr1) info.si_signo = SIGFPE; info.si_code = FPE_MDAOVF; info.si_errno = 0; - info.si_addr = (void *) __frame->pc; + info.si_addr = (void __user *) __frame->pc; force_sig_info(info.si_signo, &info, current); } /* end media_exception() */ @@ -383,7 +384,7 @@ asmlinkage void memory_access_exception(unsigned long esr0, info.si_addr = NULL; if ((esr0 & (ESRx_VALID | ESR0_EAV)) == (ESRx_VALID | ESR0_EAV)) - info.si_addr = (void *) ear0; + info.si_addr = (void __user *) ear0; force_sig_info(info.si_signo, &info, current); @@ -412,7 +413,7 @@ asmlinkage void data_access_error(unsigned long esfr1, unsigned long esr15, unsi info.si_signo = SIGSEGV; info.si_code = SEGV_ACCERR; info.si_errno = 0; - info.si_addr = (void *) + info.si_addr = (void __user *) (((esr15 & (ESRx_VALID|ESR15_EAV)) == (ESRx_VALID|ESR15_EAV)) ? ear15 : 0); force_sig_info(info.si_signo, &info, current); @@ -446,7 +447,7 @@ asmlinkage void division_exception(unsigned long esfr1, unsigned long esr0, unsi info.si_signo = SIGFPE; info.si_code = FPE_INTDIV; info.si_errno = 0; - info.si_addr = (void *) __frame->pc; + info.si_addr = (void __user *) __frame->pc; force_sig_info(info.si_signo, &info, current); } /* end division_exception() */ diff --git a/arch/frv/mb93090-mb00/pci-frv.h b/arch/frv/mb93090-mb00/pci-frv.h index 7481797ab382..0c7bf39dc729 100644 --- a/arch/frv/mb93090-mb00/pci-frv.h +++ b/arch/frv/mb93090-mb00/pci-frv.h @@ -17,8 +17,6 @@ #define PCI_PROBE_BIOS 0x0001 #define PCI_PROBE_CONF1 0x0002 #define PCI_PROBE_CONF2 0x0004 -#define PCI_NO_SORT 0x0100 -#define PCI_BIOS_SORT 0x0200 #define PCI_NO_CHECKS 0x0400 #define PCI_ASSIGN_ROMS 0x1000 #define PCI_BIOS_IRQ_SCAN 0x2000 diff --git a/arch/frv/mb93090-mb00/pci-vdk.c b/arch/frv/mb93090-mb00/pci-vdk.c index 6d51f133fb23..f003cfa68b7a 100644 --- a/arch/frv/mb93090-mb00/pci-vdk.c +++ b/arch/frv/mb93090-mb00/pci-vdk.c @@ -199,58 +199,6 @@ static struct pci_ops * __init pci_check_direct(void) } /* - * Several buggy motherboards address only 16 devices and mirror - * them to next 16 IDs. We try to detect this `feature' on all - * primary buses (those containing host bridges as they are - * expected to be unique) and remove the ghost devices. - */ - -static void __init pcibios_fixup_ghosts(struct pci_bus *b) -{ - struct list_head *ln, *mn; - struct pci_dev *d, *e; - int mirror = PCI_DEVFN(16,0); - int seen_host_bridge = 0; - int i; - - for (ln=b->devices.next; ln != &b->devices; ln=ln->next) { - d = pci_dev_b(ln); - if ((d->class >> 8) == PCI_CLASS_BRIDGE_HOST) - seen_host_bridge++; - for (mn=ln->next; mn != &b->devices; mn=mn->next) { - e = pci_dev_b(mn); - if (e->devfn != d->devfn + mirror || - e->vendor != d->vendor || - e->device != d->device || - e->class != d->class) - continue; - for(i=0; i<PCI_NUM_RESOURCES; i++) - if (e->resource[i].start != d->resource[i].start || - e->resource[i].end != d->resource[i].end || - e->resource[i].flags != d->resource[i].flags) - continue; - break; - } - if (mn == &b->devices) - return; - } - if (!seen_host_bridge) - return; - printk("PCI: Ignoring ghost devices on bus %02x\n", b->number); - - ln = &b->devices; - while (ln->next != &b->devices) { - d = pci_dev_b(ln->next); - if (d->devfn >= mirror) { - list_del(&d->global_list); - list_del(&d->bus_list); - kfree(d); - } else - ln = ln->next; - } -} - -/* * Discover remaining PCI buses in case there are peer host bridges. * We use the number of last PCI bus provided by the PCI BIOS. */ @@ -356,7 +304,6 @@ void __init pcibios_fixup_bus(struct pci_bus *bus) #if 0 printk("### PCIBIOS_FIXUP_BUS(%d)\n",bus->number); #endif - pcibios_fixup_ghosts(bus); pci_read_bridge_bases(bus); if (bus->number == 0) { diff --git a/arch/frv/mm/highmem.c b/arch/frv/mm/highmem.c index 7f77db7fabc7..eadd07658075 100644 --- a/arch/frv/mm/highmem.c +++ b/arch/frv/mm/highmem.c @@ -36,6 +36,3 @@ struct page *kmap_atomic_to_page(void *ptr) { return virt_to_page(ptr); } - - -EXPORT_SYMBOL(kmap_atomic_to_page); |