diff options
Diffstat (limited to 'arch/parisc/kernel')
| -rw-r--r-- | arch/parisc/kernel/Makefile | 2 | ||||
| -rw-r--r-- | arch/parisc/kernel/entry.S | 32 | ||||
| -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/parisc_ksyms.c | 1 | ||||
| -rw-r--r-- | arch/parisc/kernel/pdc_cons.c | 1 | ||||
| -rw-r--r-- | arch/parisc/kernel/signal.c | 62 | ||||
| -rw-r--r-- | arch/parisc/kernel/signal32.c | 2 | ||||
| -rw-r--r-- | arch/parisc/kernel/smp.c | 33 | ||||
| -rw-r--r-- | arch/parisc/kernel/time.c | 1 | ||||
| -rw-r--r-- | arch/parisc/kernel/vmlinux.lds.S | 6 |
11 files changed, 70 insertions, 178 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..18670a078849 100644 --- a/arch/parisc/kernel/entry.S +++ b/arch/parisc/kernel/entry.S @@ -552,7 +552,7 @@ * entry (identifying the physical page) and %r23 up with * the from tlb entry (or nothing if only a to entry---for * clear_user_page_asm) */ - .macro do_alias spc,tmp,tmp1,va,pte,prot,fault + .macro do_alias spc,tmp,tmp1,va,pte,prot,fault,patype cmpib,COND(<>),n 0,\spc,\fault ldil L%(TMPALIAS_MAP_START),\tmp #if defined(CONFIG_64BIT) && (TMPALIAS_MAP_START >= 0x80000000) @@ -581,7 +581,15 @@ */ cmpiclr,= 0x01,\tmp,%r0 ldi (_PAGE_DIRTY|_PAGE_READ|_PAGE_WRITE),\prot +.ifc \patype,20 depd,z \prot,8,7,\prot +.else +.ifc \patype,11 + depw,z \prot,8,7,\prot +.else + .error "undefined PA type to do_alias" +.endif +.endif /* * OK, it is in the temp alias region, check whether "from" or "to". * Check "subtle" note in pacache.S re: r23/r26. @@ -916,7 +924,7 @@ intr_check_sig: /* As above */ mfctl %cr30,%r1 LDREG TI_FLAGS(%r1),%r19 - ldi (_TIF_SIGPENDING|_TIF_RESTORE_SIGMASK|_TIF_NOTIFY_RESUME), %r20 + ldi (_TIF_SIGPENDING|_TIF_NOTIFY_RESUME), %r20 and,COND(<>) %r19, %r20, %r0 b,n intr_restore /* skip past if we've nothing to do */ @@ -1185,7 +1193,7 @@ dtlb_miss_20w: nop dtlb_check_alias_20w: - do_alias spc,t0,t1,va,pte,prot,dtlb_fault + do_alias spc,t0,t1,va,pte,prot,dtlb_fault,20 idtlbt pte,prot @@ -1209,7 +1217,7 @@ nadtlb_miss_20w: nop nadtlb_check_alias_20w: - do_alias spc,t0,t1,va,pte,prot,nadtlb_emulate + do_alias spc,t0,t1,va,pte,prot,nadtlb_emulate,20 idtlbt pte,prot @@ -1241,7 +1249,7 @@ dtlb_miss_11: nop dtlb_check_alias_11: - do_alias spc,t0,t1,va,pte,prot,dtlb_fault + do_alias spc,t0,t1,va,pte,prot,dtlb_fault,11 idtlba pte,(va) idtlbp prot,(va) @@ -1273,7 +1281,7 @@ nadtlb_miss_11: nop nadtlb_check_alias_11: - do_alias spc,t0,t1,va,pte,prot,nadtlb_emulate + do_alias spc,t0,t1,va,pte,prot,nadtlb_emulate,11 idtlba pte,(va) idtlbp prot,(va) @@ -1300,7 +1308,7 @@ dtlb_miss_20: nop dtlb_check_alias_20: - do_alias spc,t0,t1,va,pte,prot,dtlb_fault + do_alias spc,t0,t1,va,pte,prot,dtlb_fault,20 idtlbt pte,prot @@ -1326,7 +1334,7 @@ nadtlb_miss_20: nop nadtlb_check_alias_20: - do_alias spc,t0,t1,va,pte,prot,nadtlb_emulate + do_alias spc,t0,t1,va,pte,prot,nadtlb_emulate,20 idtlbt pte,prot @@ -1453,7 +1461,7 @@ naitlb_miss_20w: nop naitlb_check_alias_20w: - do_alias spc,t0,t1,va,pte,prot,naitlb_fault + do_alias spc,t0,t1,va,pte,prot,naitlb_fault,20 iitlbt pte,prot @@ -1507,7 +1515,7 @@ naitlb_miss_11: nop naitlb_check_alias_11: - do_alias spc,t0,t1,va,pte,prot,itlb_fault + do_alias spc,t0,t1,va,pte,prot,itlb_fault,11 iitlba pte,(%sr0, va) iitlbp prot,(%sr0, va) @@ -1553,7 +1561,7 @@ naitlb_miss_20: nop naitlb_check_alias_20: - do_alias spc,t0,t1,va,pte,prot,naitlb_fault + do_alias spc,t0,t1,va,pte,prot,naitlb_fault,20 iitlbt pte,prot @@ -2024,7 +2032,7 @@ syscall_check_resched: .import do_signal,code syscall_check_sig: LDREG TI_FLAGS-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r19 - ldi (_TIF_SIGPENDING|_TIF_RESTORE_SIGMASK), %r26 + ldi (_TIF_SIGPENDING|_TIF_NOTIFY_RESUME), %r26 and,COND(<>) %r19, %r26, %r0 b,n syscall_restore /* skip past if we've nothing to do */ 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/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c index a7bb757a5497..ceec85de6290 100644 --- a/arch/parisc/kernel/parisc_ksyms.c +++ b/arch/parisc/kernel/parisc_ksyms.c @@ -44,7 +44,6 @@ EXPORT_SYMBOL(__cmpxchg_u64); #endif #include <asm/uaccess.h> -EXPORT_SYMBOL(lstrncpy_from_user); EXPORT_SYMBOL(lclear_user); EXPORT_SYMBOL(lstrnlen_user); 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..594459bde14e 100644 --- a/arch/parisc/kernel/signal.c +++ b/arch/parisc/kernel/signal.c @@ -48,9 +48,6 @@ #define DBG(LEVEL, ...) #endif - -#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) - /* gcc will complain if a pointer is cast to an integer of different * size. If you really need to do this (and we do for an ELF32 user * application in an ELF64 kernel) then you have to do a cast to an @@ -109,6 +106,7 @@ 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 *) @@ -130,11 +128,7 @@ sys_rt_sigreturn(struct pt_regs *regs, int in_syscall) goto give_sigsegv; } - 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 @@ -445,8 +439,9 @@ give_sigsegv: static long handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka, - sigset_t *oldset, struct pt_regs *regs, int in_syscall) + struct pt_regs *regs, int in_syscall) { + sigset_t *oldset = sigmask_to_save(); DBG(1,"handle_signal: sig=%ld, ka=%p, info=%p, oldset=%p, regs=%p\n", sig, ka, info, oldset, regs); @@ -454,17 +449,13 @@ 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); - - tracehook_signal_handler(sig, info, ka, regs, + signal_delivered(sig, info, ka, regs, test_thread_flag(TIF_SINGLESTEP) || test_thread_flag(TIF_BLOCKSTEP)); + DBG(1,KERN_DEBUG "do_signal: Exit (success), regs->gr[28] = %ld\n", + regs->gr[28]); + return 1; } @@ -474,8 +465,6 @@ 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; @@ -577,28 +566,17 @@ do_signal(struct pt_regs *regs, long in_syscall) siginfo_t info; struct k_sigaction ka; int signr; - sigset_t *oldset; - DBG(1,"\ndo_signal: oldset=0x%p, regs=0x%p, sr7 %#lx, in_syscall=%d\n", - oldset, regs, regs->sr[7], in_syscall); + DBG(1,"\ndo_signal: regs=0x%p, sr7 %#lx, in_syscall=%d\n", + regs, regs->sr[7], in_syscall); /* Everyone else checks to see if they are in kernel mode at this point and exits if that's the case. I'm not sure why we would be called in that case, but for some reason we are. */ - if (test_thread_flag(TIF_RESTORE_SIGMASK)) - oldset = ¤t->saved_sigmask; - else - oldset = ¤t->blocked; - - DBG(1,"do_signal: oldset %08lx / %08lx\n", - oldset->sig[0], oldset->sig[1]); - - /* May need to force signal if handle_signal failed to deliver */ while (1) { - signr = get_signal_to_deliver(&info, &ka, regs, NULL); DBG(3,"do_signal: signr = %d, regs->gr[28] = %ld\n", signr, regs->gr[28]); @@ -612,14 +590,8 @@ do_signal(struct pt_regs *regs, long in_syscall) /* Whee! Actually deliver the signal. If the delivery failed, we need to continue to iterate in this loop so we can deliver the SIGSEGV... */ - if (handle_signal(signr, &info, &ka, oldset, - regs, in_syscall)) { - DBG(1,KERN_DEBUG "do_signal: Exit (success), regs->gr[28] = %ld\n", - regs->gr[28]); - if (test_thread_flag(TIF_RESTORE_SIGMASK)) - clear_thread_flag(TIF_RESTORE_SIGMASK); + if (handle_signal(signr, &info, &ka, regs, in_syscall)) return; - } } /* end of while(1) looping forever if we can't force a signal */ @@ -630,24 +602,16 @@ do_signal(struct pt_regs *regs, long in_syscall) DBG(1,"do_signal: Exit (not delivered), regs->gr[28] = %ld\n", regs->gr[28]); - if (test_thread_flag(TIF_RESTORE_SIGMASK)) { - clear_thread_flag(TIF_RESTORE_SIGMASK); - sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL); - } - - return; + restore_saved_sigmask(); } void do_notify_resume(struct pt_regs *regs, long in_syscall) { - if (test_thread_flag(TIF_SIGPENDING) || - test_thread_flag(TIF_RESTORE_SIGMASK)) + if (test_thread_flag(TIF_SIGPENDING)) do_signal(regs, in_syscall); if (test_thread_flag(TIF_NOTIFY_RESUME)) { clear_thread_flag(TIF_NOTIFY_RESUME); tracehook_notify_resume(regs); - if (current->replacement_session_keyring) - key_replace_session_keyring(); } } diff --git a/arch/parisc/kernel/signal32.c b/arch/parisc/kernel/signal32.c index e14132430762..fd49aeda9eb8 100644 --- a/arch/parisc/kernel/signal32.c +++ b/arch/parisc/kernel/signal32.c @@ -47,8 +47,6 @@ #define DBG(LEVEL, ...) #endif -#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) - inline void sigset_32to64(sigset_t *s64, compat_sigset_t *s32) { 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> diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S index fa6f2b8163e0..64a999882e4f 100644 --- a/arch/parisc/kernel/vmlinux.lds.S +++ b/arch/parisc/kernel/vmlinux.lds.S @@ -50,8 +50,10 @@ SECTIONS . = KERNEL_BINARY_TEXT_START; _text = .; /* Text and read-only data */ - .text ALIGN(16) : { + .head ALIGN(16) : { HEAD_TEXT + } = 0 + .text ALIGN(16) : { TEXT_TEXT SCHED_TEXT LOCK_TEXT @@ -65,7 +67,7 @@ SECTIONS *(.fixup) *(.lock.text) /* out-of-line lock text */ *(.gnu.warning) - } = 0 + } /* End of text section */ _etext = .; |