diff options
Diffstat (limited to 'arch/alpha/kernel')
| -rw-r--r-- | arch/alpha/kernel/binfmt_loader.c | 4 | ||||
| -rw-r--r-- | arch/alpha/kernel/entry.S | 51 | ||||
| -rw-r--r-- | arch/alpha/kernel/osf_sys.c | 6 | ||||
| -rw-r--r-- | arch/alpha/kernel/pci.c | 12 | ||||
| -rw-r--r-- | arch/alpha/kernel/pci_iommu.c | 12 | ||||
| -rw-r--r-- | arch/alpha/kernel/process.c | 62 | ||||
| -rw-r--r-- | arch/alpha/kernel/signal.c | 26 | ||||
| -rw-r--r-- | arch/alpha/kernel/smp.c | 6 | ||||
| -rw-r--r-- | arch/alpha/kernel/srmcons.c | 5 | ||||
| -rw-r--r-- | arch/alpha/kernel/sys_titan.c | 2 | ||||
| -rw-r--r-- | arch/alpha/kernel/systbls.S | 6 |
11 files changed, 60 insertions, 132 deletions
diff --git a/arch/alpha/kernel/binfmt_loader.c b/arch/alpha/kernel/binfmt_loader.c index d1f474d..9525660 100644 --- a/arch/alpha/kernel/binfmt_loader.c +++ b/arch/alpha/kernel/binfmt_loader.c @@ -5,7 +5,7 @@ #include <linux/binfmts.h> #include <linux/a.out.h> -static int load_binary(struct linux_binprm *bprm, struct pt_regs *regs) +static int load_binary(struct linux_binprm *bprm) { struct exec *eh = (struct exec *)bprm->buf; unsigned long loader; @@ -37,7 +37,7 @@ static int load_binary(struct linux_binprm *bprm, struct pt_regs *regs) retval = prepare_binprm(bprm); if (retval < 0) return retval; - return search_binary_handler(bprm,regs); + return search_binary_handler(bprm); } static struct linux_binfmt loader_format = { diff --git a/arch/alpha/kernel/entry.S b/arch/alpha/kernel/entry.S index a760783..f62a994 100644 --- a/arch/alpha/kernel/entry.S +++ b/arch/alpha/kernel/entry.S @@ -612,47 +612,24 @@ ret_from_kernel_thread: * Special system calls. Most of these are special in that they either * have to play switch_stack games or in some way use the pt_regs struct. */ - .align 4 - .globl sys_fork - .ent sys_fork -sys_fork: - .prologue 0 - mov $sp, $21 - bsr $1, do_switch_stack - bis $31, SIGCHLD, $16 - mov $31, $17 - mov $31, $18 - mov $31, $19 - mov $31, $20 - jsr $26, alpha_clone - bsr $1, undo_switch_stack - ret -.end sys_fork +.macro fork_like name .align 4 - .globl sys_clone - .ent sys_clone -sys_clone: + .globl alpha_\name + .ent alpha_\name +alpha_\name: .prologue 0 - mov $sp, $21 bsr $1, do_switch_stack - /* $16, $17, $18, $19, $20 come from the user. */ - jsr $26, alpha_clone - bsr $1, undo_switch_stack + jsr $26, sys_\name + ldq $26, 56($sp) + lda $sp, SWITCH_STACK_SIZE($sp) ret -.end sys_clone +.end alpha_\name +.endm - .align 4 - .globl sys_vfork - .ent sys_vfork -sys_vfork: - .prologue 0 - mov $sp, $16 - bsr $1, do_switch_stack - jsr $26, alpha_vfork - bsr $1, undo_switch_stack - ret -.end sys_vfork +fork_like fork +fork_like vfork +fork_like clone .align 4 .globl sys_sigreturn @@ -661,8 +638,6 @@ sys_sigreturn: .prologue 0 lda $9, ret_from_straced cmpult $26, $9, $9 - mov $sp, $17 - lda $18, -SWITCH_STACK_SIZE($sp) lda $sp, -SWITCH_STACK_SIZE($sp) jsr $26, do_sigreturn bne $9, 1f @@ -678,8 +653,6 @@ sys_rt_sigreturn: .prologue 0 lda $9, ret_from_straced cmpult $26, $9, $9 - mov $sp, $17 - lda $18, -SWITCH_STACK_SIZE($sp) lda $sp, -SWITCH_STACK_SIZE($sp) jsr $26, do_rt_sigreturn bne $9, 1f diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c index 1e6956a..14db93e 100644 --- a/arch/alpha/kernel/osf_sys.c +++ b/arch/alpha/kernel/osf_sys.c @@ -445,7 +445,7 @@ struct procfs_args { * unhappy with OSF UFS. [CHECKME] */ static int -osf_ufs_mount(char *dirname, struct ufs_args __user *args, int flags) +osf_ufs_mount(const char *dirname, struct ufs_args __user *args, int flags) { int retval; struct cdfs_args tmp; @@ -465,7 +465,7 @@ osf_ufs_mount(char *dirname, struct ufs_args __user *args, int flags) } static int -osf_cdfs_mount(char *dirname, struct cdfs_args __user *args, int flags) +osf_cdfs_mount(const char *dirname, struct cdfs_args __user *args, int flags) { int retval; struct cdfs_args tmp; @@ -485,7 +485,7 @@ osf_cdfs_mount(char *dirname, struct cdfs_args __user *args, int flags) } static int -osf_procfs_mount(char *dirname, struct procfs_args __user *args, int flags) +osf_procfs_mount(const char *dirname, struct procfs_args __user *args, int flags) { struct procfs_args tmp; diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c index ef75714..edb4e00 100644 --- a/arch/alpha/kernel/pci.c +++ b/arch/alpha/kernel/pci.c @@ -59,13 +59,13 @@ struct pci_controller *pci_isa_hose; * Quirks. */ -static void __devinit quirk_isa_bridge(struct pci_dev *dev) +static void quirk_isa_bridge(struct pci_dev *dev) { dev->class = PCI_CLASS_BRIDGE_ISA << 8; } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82378, quirk_isa_bridge); -static void __devinit quirk_cypress(struct pci_dev *dev) +static void quirk_cypress(struct pci_dev *dev) { /* The Notorious Cy82C693 chip. */ @@ -104,7 +104,7 @@ static void __devinit quirk_cypress(struct pci_dev *dev) DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_CONTAQ, PCI_DEVICE_ID_CONTAQ_82C693, quirk_cypress); /* Called for each device after PCI setup is done. */ -static void __devinit pcibios_fixup_final(struct pci_dev *dev) +static void pcibios_fixup_final(struct pci_dev *dev) { unsigned int class = dev->class >> 8; @@ -198,8 +198,7 @@ subsys_initcall(pcibios_init); #ifdef ALPHA_RESTORE_SRM_SETUP static struct pdev_srm_saved_conf *srm_saved_configs; -void __devinit -pdev_save_srm_config(struct pci_dev *dev) +void pdev_save_srm_config(struct pci_dev *dev) { struct pdev_srm_saved_conf *tmp; static int printed = 0; @@ -241,8 +240,7 @@ pci_restore_srm_config(void) } #endif -void __devinit -pcibios_fixup_bus(struct pci_bus *bus) +void pcibios_fixup_bus(struct pci_bus *bus) { struct pci_dev *dev = bus->self; diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c index 3f844d2..a21d0ab 100644 --- a/arch/alpha/kernel/pci_iommu.c +++ b/arch/alpha/kernel/pci_iommu.c @@ -354,8 +354,7 @@ static dma_addr_t alpha_pci_map_page(struct device *dev, struct page *page, struct pci_dev *pdev = alpha_gendev_to_pci(dev); int dac_allowed; - if (dir == PCI_DMA_NONE) - BUG(); + BUG_ON(dir == PCI_DMA_NONE); dac_allowed = pdev ? pci_dac_dma_supported(pdev, pdev->dma_mask) : 0; return pci_map_single_1(pdev, (char *)page_address(page) + offset, @@ -378,8 +377,7 @@ static void alpha_pci_unmap_page(struct device *dev, dma_addr_t dma_addr, struct pci_iommu_arena *arena; long dma_ofs, npages; - if (dir == PCI_DMA_NONE) - BUG(); + BUG_ON(dir == PCI_DMA_NONE); if (dma_addr >= __direct_map_base && dma_addr < __direct_map_base + __direct_map_size) { @@ -662,8 +660,7 @@ static int alpha_pci_map_sg(struct device *dev, struct scatterlist *sg, dma_addr_t max_dma; int dac_allowed; - if (dir == PCI_DMA_NONE) - BUG(); + BUG_ON(dir == PCI_DMA_NONE); dac_allowed = dev ? pci_dac_dma_supported(pdev, pdev->dma_mask) : 0; @@ -742,8 +739,7 @@ static void alpha_pci_unmap_sg(struct device *dev, struct scatterlist *sg, dma_addr_t max_dma; dma_addr_t fbeg, fend; - if (dir == PCI_DMA_NONE) - BUG(); + BUG_ON(dir == PCI_DMA_NONE); if (! alpha_mv.mv_pci_tbi) return; diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c index 51987dc..b5d0d09 100644 --- a/arch/alpha/kernel/process.c +++ b/arch/alpha/kernel/process.c @@ -235,51 +235,28 @@ release_thread(struct task_struct *dead_task) } /* - * "alpha_clone()".. By the time we get here, the - * non-volatile registers have also been saved on the - * stack. We do some ugly pointer stuff here.. (see - * also copy_thread) - * - * Notice that "fork()" is implemented in terms of clone, - * with parameters (SIGCHLD, 0). - */ -int -alpha_clone(unsigned long clone_flags, unsigned long usp, - int __user *parent_tid, int __user *child_tid, - unsigned long tls_value, struct pt_regs *regs) -{ - if (!usp) - usp = rdusp(); - - return do_fork(clone_flags, usp, regs, 0, parent_tid, child_tid); -} - -int -alpha_vfork(struct pt_regs *regs) -{ - return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, rdusp(), - regs, 0, NULL, NULL); -} - -/* * Copy an alpha thread.. */ int copy_thread(unsigned long clone_flags, unsigned long usp, unsigned long arg, - struct task_struct * p, struct pt_regs * regs) + struct task_struct *p) { extern void ret_from_fork(void); extern void ret_from_kernel_thread(void); struct thread_info *childti = task_thread_info(p); struct pt_regs *childregs = task_pt_regs(p); + struct pt_regs *regs = current_pt_regs(); struct switch_stack *childstack, *stack; unsigned long settls; childstack = ((struct switch_stack *) childregs) - 1; - if (unlikely(!regs)) { + childti->pcb.ksp = (unsigned long) childstack; + childti->pcb.flags = 1; /* set FEN, clear everything else */ + + if (unlikely(p->flags & PF_KTHREAD)) { /* kernel thread */ memset(childstack, 0, sizeof(struct switch_stack) + sizeof(struct pt_regs)); @@ -288,12 +265,17 @@ copy_thread(unsigned long clone_flags, unsigned long usp, childstack->r10 = arg; childregs->hae = alpha_mv.hae_cache, childti->pcb.usp = 0; - childti->pcb.ksp = (unsigned long) childstack; - childti->pcb.flags = 1; /* set FEN, clear everything else */ return 0; } + /* Note: if CLONE_SETTLS is not set, then we must inherit the + value from the parent, which will have been set by the block + copy in dup_task_struct. This is non-intuitive, but is + required for proper operation in the case of a threaded + application calling fork. */ + if (clone_flags & CLONE_SETTLS) + childti->pcb.unique = regs->r20; + childti->pcb.usp = usp ?: rdusp(); *childregs = *regs; - settls = regs->r20; childregs->r0 = 0; childregs->r19 = 0; childregs->r20 = 1; /* OSF/1 has some strange fork() semantics. */ @@ -301,22 +283,6 @@ copy_thread(unsigned long clone_flags, unsigned long usp, stack = ((struct switch_stack *) regs) - 1; *childstack = *stack; childstack->r26 = (unsigned long) ret_from_fork; - childti->pcb.usp = usp; - childti->pcb.ksp = (unsigned long) childstack; - childti->pcb.flags = 1; /* set FEN, clear everything else */ - - /* Set a new TLS for the child thread? Peek back into the - syscall arguments that we saved on syscall entry. Oops, - except we'd have clobbered it with the parent/child set - of r20. Read the saved copy. */ - /* Note: if CLONE_SETTLS is not set, then we must inherit the - value from the parent, which will have been set by the block - copy in dup_task_struct. This is non-intuitive, but is - required for proper operation in the case of a threaded - application calling fork. */ - if (clone_flags & CLONE_SETTLS) - childti->pcb.unique = settls; - return 0; } diff --git a/arch/alpha/kernel/signal.c b/arch/alpha/kernel/signal.c index 32575f8..02d02c0 100644 --- a/arch/alpha/kernel/signal.c +++ b/arch/alpha/kernel/signal.c @@ -122,12 +122,6 @@ SYSCALL_DEFINE1(sigsuspend, old_sigset_t, mask) return sigsuspend(&blocked); } -asmlinkage int -sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss) -{ - return do_sigaltstack(uss, uoss, rdusp()); -} - /* * Do a signal return; undo the signal stack. */ @@ -160,10 +154,10 @@ extern char compile_time_assert #define INSN_CALLSYS 0x00000083 static long -restore_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs, - struct switch_stack *sw) +restore_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs) { unsigned long usp; + struct switch_stack *sw = (struct switch_stack *)regs - 1; long i, err = __get_user(regs->pc, &sc->sc_pc); current_thread_info()->restart_block.fn = do_no_restart_syscall; @@ -215,9 +209,9 @@ restore_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs, registers and transfer control from userland. */ asmlinkage void -do_sigreturn(struct sigcontext __user *sc, struct pt_regs *regs, - struct switch_stack *sw) +do_sigreturn(struct sigcontext __user *sc) { + struct pt_regs *regs = current_pt_regs(); sigset_t set; /* Verify that it's a good sigcontext before using it */ @@ -228,7 +222,7 @@ do_sigreturn(struct sigcontext __user *sc, struct pt_regs *regs, set_current_blocked(&set); - if (restore_sigcontext(sc, regs, sw)) + if (restore_sigcontext(sc, regs)) goto give_sigsegv; /* Send SIGTRAP if we're single-stepping: */ @@ -249,9 +243,9 @@ give_sigsegv: } asmlinkage void -do_rt_sigreturn(struct rt_sigframe __user *frame, struct pt_regs *regs, - struct switch_stack *sw) +do_rt_sigreturn(struct rt_sigframe __user *frame) { + struct pt_regs *regs = current_pt_regs(); sigset_t set; /* Verify that it's a good ucontext_t before using it */ @@ -262,7 +256,7 @@ do_rt_sigreturn(struct rt_sigframe __user *frame, struct pt_regs *regs, set_current_blocked(&set); - if (restore_sigcontext(&frame->uc.uc_mcontext, regs, sw)) + if (restore_sigcontext(&frame->uc.uc_mcontext, regs)) goto give_sigsegv; /* Send SIGTRAP if we're single-stepping: */ @@ -418,9 +412,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, err |= __put_user(0, &frame->uc.uc_flags); err |= __put_user(0, &frame->uc.uc_link); err |= __put_user(set->sig[0], &frame->uc.uc_osf_sigmask); - err |= __put_user(current->sas_ss_sp, &frame->uc.uc_stack.ss_sp); - err |= __put_user(sas_ss_flags(oldsp), &frame->uc.uc_stack.ss_flags); - err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size); + err |= __save_altstack(&frame->uc.uc_stack, oldsp); err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, set->sig[0], oldsp); err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)); diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c index a41ad90..9603bc2 100644 --- a/arch/alpha/kernel/smp.c +++ b/arch/alpha/kernel/smp.c @@ -68,7 +68,7 @@ enum ipi_message_type { }; /* Set to a secondary's cpuid when it comes online. */ -static int smp_secondary_alive __devinitdata = 0; +static int smp_secondary_alive = 0; int smp_num_probed; /* Internal processor count */ int smp_num_cpus = 1; /* Number that came online. */ @@ -172,7 +172,7 @@ smp_callin(void) } /* Wait until hwrpb->txrdy is clear for cpu. Return -1 on timeout. */ -static int __devinit +static int wait_for_txrdy (unsigned long cpumask) { unsigned long timeout; @@ -468,7 +468,7 @@ smp_prepare_cpus(unsigned int max_cpus) smp_num_cpus = smp_num_probed; } -void __devinit +void smp_prepare_boot_cpu(void) { } diff --git a/arch/alpha/kernel/srmcons.c b/arch/alpha/kernel/srmcons.c index 5d58652..59b7bba 100644 --- a/arch/alpha/kernel/srmcons.c +++ b/arch/alpha/kernel/srmcons.c @@ -205,7 +205,6 @@ static const struct tty_operations srmcons_ops = { static int __init srmcons_init(void) { - tty_port_init(&srmcons_singleton.port); setup_timer(&srmcons_singleton.timer, srmcons_receive_chars, (unsigned long)&srmcons_singleton); if (srm_is_registered_console) { @@ -215,6 +214,9 @@ srmcons_init(void) driver = alloc_tty_driver(MAX_SRM_CONSOLE_DEVICES); if (!driver) return -ENOMEM; + + tty_port_init(&srmcons_singleton.port); + driver->driver_name = "srm"; driver->name = "srm"; driver->major = 0; /* dynamic */ @@ -227,6 +229,7 @@ srmcons_init(void) err = tty_register_driver(driver); if (err) { put_tty_driver(driver); + tty_port_destroy(&srmcons_singleton.port); return err; } srmcons_driver = driver; diff --git a/arch/alpha/kernel/sys_titan.c b/arch/alpha/kernel/sys_titan.c index 2533db2..5cf4a48 100644 --- a/arch/alpha/kernel/sys_titan.c +++ b/arch/alpha/kernel/sys_titan.c @@ -303,7 +303,7 @@ titan_late_init(void) } -static int __devinit +static int titan_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { u8 intline; diff --git a/arch/alpha/kernel/systbls.S b/arch/alpha/kernel/systbls.S index 2ac6b45..4284ec7 100644 --- a/arch/alpha/kernel/systbls.S +++ b/arch/alpha/kernel/systbls.S @@ -12,7 +12,7 @@ sys_call_table: .quad alpha_ni_syscall /* 0 */ .quad sys_exit - .quad sys_fork + .quad alpha_fork .quad sys_read .quad sys_write .quad alpha_ni_syscall /* 5 */ @@ -76,7 +76,7 @@ sys_call_table: .quad sys_getpgrp .quad sys_getpagesize .quad alpha_ni_syscall /* 65 */ - .quad sys_vfork + .quad alpha_vfork .quad sys_newstat .quad sys_newlstat .quad alpha_ni_syscall @@ -330,7 +330,7 @@ sys_call_table: .quad sys_ni_syscall /* 309: old get_kernel_syms */ .quad sys_syslog /* 310 */ .quad sys_reboot - .quad sys_clone + .quad alpha_clone .quad sys_uselib .quad sys_mlock .quad sys_munlock /* 315 */ |