diff options
Diffstat (limited to 'arch/parisc/kernel')
| -rw-r--r-- | arch/parisc/kernel/Makefile | 2 | ||||
| -rw-r--r-- | arch/parisc/kernel/entry.S | 4 | ||||
| -rw-r--r-- | arch/parisc/kernel/init_task.c | 70 | ||||
| -rw-r--r-- | arch/parisc/kernel/pacache.S | 38 | ||||
| -rw-r--r-- | arch/parisc/kernel/pdc_cons.c | 1 | ||||
| -rw-r--r-- | arch/parisc/kernel/signal.c | 15 | ||||
| -rw-r--r-- | arch/parisc/kernel/smp.c | 33 | ||||
| -rw-r--r-- | arch/parisc/kernel/time.c | 1 |
8 files changed, 40 insertions, 124 deletions
diff --git a/arch/parisc/kernel/Makefile b/arch/parisc/kernel/Makefile index 67db0722e6ca..66ee3f12df58 100644 --- a/arch/parisc/kernel/Makefile +++ b/arch/parisc/kernel/Makefile @@ -2,7 +2,7 @@ # Makefile for arch/parisc/kernel # -extra-y := init_task.o head.o vmlinux.lds +extra-y := head.o vmlinux.lds obj-y := cache.o pacache.o setup.o traps.o time.o irq.o \ pa7300lc.o syscall.o entry.o sys_parisc.o firmware.o \ diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S index 6f0594439143..535034217021 100644 --- a/arch/parisc/kernel/entry.S +++ b/arch/parisc/kernel/entry.S @@ -581,7 +581,11 @@ */ cmpiclr,= 0x01,\tmp,%r0 ldi (_PAGE_DIRTY|_PAGE_READ|_PAGE_WRITE),\prot +#ifdef CONFIG_64BIT depd,z \prot,8,7,\prot +#else + depw,z \prot,8,7,\prot +#endif /* * OK, it is in the temp alias region, check whether "from" or "to". * Check "subtle" note in pacache.S re: r23/r26. diff --git a/arch/parisc/kernel/init_task.c b/arch/parisc/kernel/init_task.c deleted file mode 100644 index 4a91e433416f..000000000000 --- a/arch/parisc/kernel/init_task.c +++ /dev/null @@ -1,70 +0,0 @@ -/* - * Static declaration of "init" task data structure. - * - * Copyright (C) 2000 Paul Bame <bame at parisc-linux.org> - * Copyright (C) 2000-2001 John Marvin <jsm at parisc-linux.org> - * Copyright (C) 2001 Helge Deller <deller @ parisc-linux.org> - * Copyright (C) 2002 Matthew Wilcox <willy with parisc-linux.org> - * - * - * 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 - */ - -#include <linux/mm.h> -#include <linux/fs.h> -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/init.h> -#include <linux/init_task.h> -#include <linux/mqueue.h> - -#include <asm/uaccess.h> -#include <asm/pgtable.h> -#include <asm/pgalloc.h> - -static struct signal_struct init_signals = INIT_SIGNALS(init_signals); -static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); -/* - * Initial task structure. - * - * We need to make sure that this is 16384-byte aligned due to the - * way process stacks are handled. This is done by having a special - * "init_task" linker map entry.. - */ -union thread_union init_thread_union __init_task_data - __attribute__((aligned(128))) = - { INIT_THREAD_INFO(init_task) }; - -#if PT_NLEVELS == 3 -/* NOTE: This layout exactly conforms to the hybrid L2/L3 page table layout - * with the first pmd adjacent to the pgd and below it. gcc doesn't actually - * guarantee that global objects will be laid out in memory in the same order - * as the order of declaration, so put these in different sections and use - * the linker script to order them. */ -pmd_t pmd0[PTRS_PER_PMD] __attribute__ ((__section__ (".data..vm0.pmd"), aligned(PAGE_SIZE))); -#endif - -pgd_t swapper_pg_dir[PTRS_PER_PGD] __attribute__ ((__section__ (".data..vm0.pgd"), aligned(PAGE_SIZE))); -pte_t pg0[PT_INITIAL * PTRS_PER_PTE] __attribute__ ((__section__ (".data..vm0.pte"), aligned(PAGE_SIZE))); - -/* - * Initial task structure. - * - * All other task structs will be allocated on slabs in fork.c - */ -EXPORT_SYMBOL(init_task); - -__asm__(".data"); -struct task_struct init_task = INIT_TASK(init_task); diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S index 93ff3d90edd1..5d7218ad885c 100644 --- a/arch/parisc/kernel/pacache.S +++ b/arch/parisc/kernel/pacache.S @@ -692,7 +692,7 @@ ENTRY(flush_icache_page_asm) /* Purge any old translation */ - pitlb (%sr0,%r28) + pitlb (%sr4,%r28) ldil L%icache_stride, %r1 ldw R%icache_stride(%r1), %r1 @@ -706,27 +706,29 @@ ENTRY(flush_icache_page_asm) sub %r25, %r1, %r25 -1: fic,m %r1(%r28) - fic,m %r1(%r28) - fic,m %r1(%r28) - fic,m %r1(%r28) - fic,m %r1(%r28) - fic,m %r1(%r28) - fic,m %r1(%r28) - fic,m %r1(%r28) - fic,m %r1(%r28) - fic,m %r1(%r28) - fic,m %r1(%r28) - fic,m %r1(%r28) - fic,m %r1(%r28) - fic,m %r1(%r28) - fic,m %r1(%r28) + /* fic only has the type 26 form on PA1.1, requiring an + * explicit space specification, so use %sr4 */ +1: fic,m %r1(%sr4,%r28) + fic,m %r1(%sr4,%r28) + fic,m %r1(%sr4,%r28) + fic,m %r1(%sr4,%r28) + fic,m %r1(%sr4,%r28) + fic,m %r1(%sr4,%r28) + fic,m %r1(%sr4,%r28) + fic,m %r1(%sr4,%r28) + fic,m %r1(%sr4,%r28) + fic,m %r1(%sr4,%r28) + fic,m %r1(%sr4,%r28) + fic,m %r1(%sr4,%r28) + fic,m %r1(%sr4,%r28) + fic,m %r1(%sr4,%r28) + fic,m %r1(%sr4,%r28) cmpb,COND(<<) %r28, %r25,1b - fic,m %r1(%r28) + fic,m %r1(%sr4,%r28) sync bv %r0(%r2) - pitlb (%sr0,%r25) + pitlb (%sr4,%r25) .exit .procend diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c index 0b3393381a81..47341aa208f2 100644 --- a/arch/parisc/kernel/pdc_cons.c +++ b/arch/parisc/kernel/pdc_cons.c @@ -50,6 +50,7 @@ #include <linux/init.h> #include <linux/major.h> #include <linux/tty.h> +#include <asm/page.h> /* for PAGE0 */ #include <asm/pdc.h> /* for iodc_call() proto and friends */ static DEFINE_SPINLOCK(pdc_console_lock); diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c index 12c1ed33dc18..4b9cb0d546d1 100644 --- a/arch/parisc/kernel/signal.c +++ b/arch/parisc/kernel/signal.c @@ -109,6 +109,7 @@ sys_rt_sigreturn(struct pt_regs *regs, int in_syscall) sigframe_size = PARISC_RT_SIGFRAME_SIZE32; #endif + current_thread_info()->restart_block.fn = do_no_restart_syscall; /* Unwind the user stack to get the rt_sigframe structure. */ frame = (struct rt_sigframe __user *) @@ -131,10 +132,7 @@ sys_rt_sigreturn(struct pt_regs *regs, int in_syscall) } sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&set); /* Good thing we saved the old gr[30], eh? */ #ifdef CONFIG_64BIT @@ -454,12 +452,7 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka, if (!setup_rt_frame(sig, ka, info, oldset, regs, in_syscall)) return 0; - spin_lock_irq(¤t->sighand->siglock); - sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); - if (!(ka->sa.sa_flags & SA_NODEFER)) - sigaddset(¤t->blocked,sig); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + block_sigmask(ka, sig); tracehook_signal_handler(sig, info, ka, regs, test_thread_flag(TIF_SINGLESTEP) || @@ -474,8 +467,6 @@ syscall_restart(struct pt_regs *regs, struct k_sigaction *ka) /* Check the return code */ switch (regs->gr[28]) { case -ERESTART_RESTARTBLOCK: - current_thread_info()->restart_block.fn = - do_no_restart_syscall; case -ERESTARTNOHAND: DBG(1,"ERESTARTNOHAND: returning -EINTR\n"); regs->gr[28] = -EINTR; diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c index 0bb1d63907f8..a47828d31fe6 100644 --- a/arch/parisc/kernel/smp.c +++ b/arch/parisc/kernel/smp.c @@ -31,6 +31,7 @@ #include <linux/delay.h> #include <linux/bitops.h> #include <linux/ftrace.h> +#include <linux/cpu.h> #include <linux/atomic.h> #include <asm/current.h> @@ -295,8 +296,13 @@ smp_cpu_init(int cpunum) printk(KERN_CRIT "CPU#%d already initialized!\n", cpunum); machine_halt(); - } + } + + notify_cpu_starting(cpunum); + + ipi_call_lock(); set_cpu_online(cpunum, true); + ipi_call_unlock(); /* Initialise the idle task for this CPU */ atomic_inc(&init_mm.mm_count); @@ -334,26 +340,11 @@ void __init smp_callin(void) /* * Bring one cpu online. */ -int __cpuinit smp_boot_one_cpu(int cpuid) +int __cpuinit smp_boot_one_cpu(int cpuid, struct task_struct *idle) { const struct cpuinfo_parisc *p = &per_cpu(cpu_data, cpuid); - struct task_struct *idle; long timeout; - /* - * Create an idle task for this CPU. Note the address wed* give - * to kernel_thread is irrelevant -- it's going to start - * where OS_BOOT_RENDEVZ vector in SAL says to start. But - * this gets all the other task-y sort of data structures set - * up like we wish. We need to pull the just created idle task - * off the run queue and stuff it into the init_tasks[] array. - * Sheesh . . . - */ - - idle = fork_idle(cpuid); - if (IS_ERR(idle)) - panic("SMP: fork failed for CPU:%d", cpuid); - task_thread_info(idle)->cpu = cpuid; /* Let _start know what logical CPU we're booting @@ -397,10 +388,6 @@ int __cpuinit smp_boot_one_cpu(int cpuid) udelay(100); barrier(); } - - put_task_struct(idle); - idle = NULL; - printk(KERN_CRIT "SMP: CPU:%d is stuck.\n", cpuid); return -1; @@ -449,10 +436,10 @@ void smp_cpus_done(unsigned int cpu_max) } -int __cpuinit __cpu_up(unsigned int cpu) +int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *tidle) { if (cpu != 0 && cpu < parisc_max_cpus) - smp_boot_one_cpu(cpu); + smp_boot_one_cpu(cpu, tidle); return cpu_online(cpu) ? 0 : -ENOSYS; } diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c index 7c0774397b89..70e105d62423 100644 --- a/arch/parisc/kernel/time.c +++ b/arch/parisc/kernel/time.c @@ -29,6 +29,7 @@ #include <asm/uaccess.h> #include <asm/io.h> #include <asm/irq.h> +#include <asm/page.h> #include <asm/param.h> #include <asm/pdc.h> #include <asm/led.h> |