diff options
Diffstat (limited to 'arch/ia64/kernel')
| -rw-r--r-- | arch/ia64/kernel/acpi.c | 8 | ||||
| -rw-r--r-- | arch/ia64/kernel/efi.c | 2 | ||||
| -rw-r--r-- | arch/ia64/kernel/entry.S | 54 | ||||
| -rw-r--r-- | arch/ia64/kernel/head.S | 13 | ||||
| -rw-r--r-- | arch/ia64/kernel/iosapic.c | 19 | ||||
| -rw-r--r-- | arch/ia64/kernel/process.c | 161 | ||||
| -rw-r--r-- | arch/ia64/kernel/ptrace.c | 27 | ||||
| -rw-r--r-- | arch/ia64/kernel/smpboot.c | 16 | ||||
| -rw-r--r-- | arch/ia64/kernel/time.c | 25 | ||||
| -rw-r--r-- | arch/ia64/kernel/topology.c | 4 |
10 files changed, 113 insertions, 216 deletions
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c index 440578850ae5..335eb07480fe 100644 --- a/arch/ia64/kernel/acpi.c +++ b/arch/ia64/kernel/acpi.c @@ -422,7 +422,7 @@ static int __init acpi_parse_madt(struct acpi_table_header *table) #define PXM_FLAG_LEN ((MAX_PXM_DOMAINS + 1)/32) static int __initdata srat_num_cpus; /* number of cpus */ -static u32 __devinitdata pxm_flag[PXM_FLAG_LEN]; +static u32 pxm_flag[PXM_FLAG_LEN]; #define pxm_bit_set(bit) (set_bit(bit,(void *)pxm_flag)) #define pxm_bit_test(bit) (test_bit(bit,(void *)pxm_flag)) static struct acpi_table_slit __initdata *slit_table; @@ -633,6 +633,7 @@ int acpi_register_gsi(struct device *dev, u32 gsi, int triggering, int polarity) ACPI_EDGE_SENSITIVE) ? IOSAPIC_EDGE : IOSAPIC_LEVEL); } +EXPORT_SYMBOL_GPL(acpi_register_gsi); void acpi_unregister_gsi(u32 gsi) { @@ -644,6 +645,7 @@ void acpi_unregister_gsi(u32 gsi) iosapic_unregister_intr(gsi); } +EXPORT_SYMBOL_GPL(acpi_unregister_gsi); static int __init acpi_parse_fadt(struct acpi_table_header *table) { @@ -954,8 +956,8 @@ EXPORT_SYMBOL(acpi_unmap_lsapic); #endif /* CONFIG_ACPI_HOTPLUG_CPU */ #ifdef CONFIG_ACPI_NUMA -static acpi_status __devinit -acpi_map_iosapic(acpi_handle handle, u32 depth, void *context, void **ret) +static acpi_status acpi_map_iosapic(acpi_handle handle, u32 depth, + void *context, void **ret) { struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; union acpi_object *obj; diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c index d37bbd48637f..f034563aeae5 100644 --- a/arch/ia64/kernel/efi.c +++ b/arch/ia64/kernel/efi.c @@ -870,7 +870,7 @@ kern_mem_attribute (unsigned long phys_addr, unsigned long size) EXPORT_SYMBOL(kern_mem_attribute); int -valid_phys_addr_range (unsigned long phys_addr, unsigned long size) +valid_phys_addr_range (phys_addr_t phys_addr, unsigned long size) { u64 attr; diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S index 1ccbe12a4d84..6bfd8429ee0f 100644 --- a/arch/ia64/kernel/entry.S +++ b/arch/ia64/kernel/entry.S @@ -61,14 +61,13 @@ ENTRY(ia64_execve) * Allocate 8 input registers since ptrace() may clobber them */ .prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(8) - alloc loc1=ar.pfs,8,2,4,0 + alloc loc1=ar.pfs,8,2,3,0 mov loc0=rp .body mov out0=in0 // filename ;; // stop bit between alloc and call mov out1=in1 // argv mov out2=in2 // envp - add out3=16,sp // regs br.call.sptk.many rp=sys_execve .ret0: cmp4.ge p6,p7=r8,r0 @@ -76,7 +75,6 @@ ENTRY(ia64_execve) sxt4 r8=r8 // return 64-bit result ;; stf.spill [sp]=f0 -(p6) cmp.ne pKStk,pUStk=r0,r0 // a successful execve() lands us in user-mode... mov rp=loc0 (p6) mov ar.pfs=r0 // clear ar.pfs on success (p7) br.ret.sptk.many rp @@ -118,13 +116,12 @@ GLOBAL_ENTRY(sys_clone2) mov loc1=r16 // save ar.pfs across do_fork .body mov out1=in1 - mov out3=in2 + mov out2=in2 tbit.nz p6,p0=in0,CLONE_SETTLS_BIT - mov out4=in3 // parent_tidptr: valid only w/CLONE_PARENT_SETTID + mov out3=in3 // parent_tidptr: valid only w/CLONE_PARENT_SETTID ;; (p6) st8 [r2]=in5 // store TLS in r16 for copy_thread() - mov out5=in4 // child_tidptr: valid only w/CLONE_CHILD_SETTID or CLONE_CHILD_CLEARTID - adds out2=IA64_SWITCH_STACK_SIZE+16,sp // out2 = ®s + mov out4=in4 // child_tidptr: valid only w/CLONE_CHILD_SETTID or CLONE_CHILD_CLEARTID mov out0=in0 // out0 = clone_flags br.call.sptk.many rp=do_fork .ret1: .restore sp @@ -150,13 +147,12 @@ GLOBAL_ENTRY(sys_clone) mov loc1=r16 // save ar.pfs across do_fork .body mov out1=in1 - mov out3=16 // stacksize (compensates for 16-byte scratch area) + mov out2=16 // stacksize (compensates for 16-byte scratch area) tbit.nz p6,p0=in0,CLONE_SETTLS_BIT - mov out4=in2 // parent_tidptr: valid only w/CLONE_PARENT_SETTID + mov out3=in2 // parent_tidptr: valid only w/CLONE_PARENT_SETTID ;; (p6) st8 [r2]=in4 // store TLS in r13 (tp) - mov out5=in3 // child_tidptr: valid only w/CLONE_CHILD_SETTID or CLONE_CHILD_CLEARTID - adds out2=IA64_SWITCH_STACK_SIZE+16,sp // out2 = ®s + mov out4=in3 // child_tidptr: valid only w/CLONE_CHILD_SETTID or CLONE_CHILD_CLEARTID mov out0=in0 // out0 = clone_flags br.call.sptk.many rp=do_fork .ret2: .restore sp @@ -484,19 +480,6 @@ GLOBAL_ENTRY(prefetch_stack) br.ret.sptk.many rp END(prefetch_stack) -GLOBAL_ENTRY(kernel_execve) - rum psr.ac - mov r15=__NR_execve // put syscall number in place - break __BREAK_SYSCALL - br.ret.sptk.many rp -END(kernel_execve) - -GLOBAL_ENTRY(clone) - mov r15=__NR_clone // put syscall number in place - break __BREAK_SYSCALL - br.ret.sptk.many rp -END(clone) - /* * Invoke a system call, but do some tracing before and after the call. * We MUST preserve the current register frame throughout this routine @@ -600,6 +583,27 @@ GLOBAL_ENTRY(ia64_strace_leave_kernel) .ret4: br.cond.sptk ia64_leave_kernel END(ia64_strace_leave_kernel) +ENTRY(call_payload) + .prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(0) + /* call the kernel_thread payload; fn is in r4, arg - in r5 */ + alloc loc1=ar.pfs,0,3,1,0 + mov loc0=rp + mov loc2=gp + mov out0=r5 // arg + ld8 r14 = [r4], 8 // fn.address + ;; + mov b6 = r14 + ld8 gp = [r4] // fn.gp + ;; + br.call.sptk.many rp=b6 // fn(arg) +.ret12: mov gp=loc2 + mov rp=loc0 + mov ar.pfs=loc1 + /* ... and if it has returned, we are going to userland */ + cmp.ne pKStk,pUStk=r0,r0 + br.ret.sptk.many rp +END(call_payload) + GLOBAL_ENTRY(ia64_ret_from_clone) PT_REGS_UNWIND_INFO(0) { /* @@ -616,6 +620,7 @@ GLOBAL_ENTRY(ia64_ret_from_clone) br.call.sptk.many rp=ia64_invoke_schedule_tail } .ret8: +(pKStk) br.call.sptk.many rp=call_payload adds r2=TI_FLAGS+IA64_TASK_SIZE,r13 ;; ld4 r2=[r2] @@ -1780,6 +1785,7 @@ sys_call_table: data8 sys_process_vm_readv data8 sys_process_vm_writev data8 sys_accept4 + data8 sys_finit_module // 1335 .org sys_call_table + 8*NR_syscalls // guard against failures to increase NR_syscalls #endif /* __IA64_ASM_PARAVIRTUALIZED_NATIVE */ diff --git a/arch/ia64/kernel/head.S b/arch/ia64/kernel/head.S index 629a250f7c19..4738ff7bd66a 100644 --- a/arch/ia64/kernel/head.S +++ b/arch/ia64/kernel/head.S @@ -1093,19 +1093,6 @@ GLOBAL_ENTRY(cycle_to_cputime) END(cycle_to_cputime) #endif /* CONFIG_VIRT_CPU_ACCOUNTING */ -GLOBAL_ENTRY(start_kernel_thread) - .prologue - .save rp, r0 // this is the end of the call-chain - .body - alloc r2 = ar.pfs, 0, 0, 2, 0 - mov out0 = r9 - mov out1 = r11;; - br.call.sptk.many rp = kernel_thread_helper;; - mov out0 = r8 - br.call.sptk.many rp = sys_exit;; -1: br.sptk.few 1b // not reached -END(start_kernel_thread) - #ifdef CONFIG_IA64_BRL_EMU /* diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c index ef4b5d877cf2..ee33c3aaa2fc 100644 --- a/arch/ia64/kernel/iosapic.c +++ b/arch/ia64/kernel/iosapic.c @@ -147,7 +147,7 @@ static struct iosapic_intr_info { unsigned char trigger : 1; /* trigger mode (see iosapic.h) */ } iosapic_intr_info[NR_IRQS]; -static unsigned char pcat_compat __devinitdata; /* 8259 compatibility flag */ +static unsigned char pcat_compat; /* 8259 compatibility flag */ static inline void iosapic_write(struct iosapic *iosapic, unsigned int reg, u32 val) @@ -914,10 +914,8 @@ iosapic_register_platform_intr (u32 int_type, unsigned int gsi, /* * ACPI calls this when it finds an entry for a legacy ISA IRQ override. */ -void __devinit -iosapic_override_isa_irq (unsigned int isa_irq, unsigned int gsi, - unsigned long polarity, - unsigned long trigger) +void iosapic_override_isa_irq(unsigned int isa_irq, unsigned int gsi, + unsigned long polarity, unsigned long trigger) { int vector, irq; unsigned int dest = cpu_physical_id(smp_processor_id()); @@ -1012,8 +1010,7 @@ iosapic_check_gsi_range (unsigned int gsi_base, unsigned int ver) return 0; } -int __devinit -iosapic_init (unsigned long phys_addr, unsigned int gsi_base) +int iosapic_init(unsigned long phys_addr, unsigned int gsi_base) { int num_rte, err, index; unsigned int isa_irq, ver; @@ -1070,9 +1067,7 @@ iosapic_init (unsigned long phys_addr, unsigned int gsi_base) return 0; } -#ifdef CONFIG_HOTPLUG -int -iosapic_remove (unsigned int gsi_base) +int iosapic_remove(unsigned int gsi_base) { int index, err = 0; unsigned long flags; @@ -1098,11 +1093,9 @@ iosapic_remove (unsigned int gsi_base) spin_unlock_irqrestore(&iosapic_lock, flags); return err; } -#endif /* CONFIG_HOTPLUG */ #ifdef CONFIG_NUMA -void __devinit -map_iosapic_to_node(unsigned int gsi_base, int node) +void map_iosapic_to_node(unsigned int gsi_base, int node) { int index; diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c index 35e106f2ed13..31360cbbd5f8 100644 --- a/arch/ia64/kernel/process.c +++ b/arch/ia64/kernel/process.c @@ -393,72 +393,24 @@ ia64_load_extra (struct task_struct *task) int copy_thread(unsigned long clone_flags, unsigned long user_stack_base, unsigned long user_stack_size, - struct task_struct *p, struct pt_regs *regs) + struct task_struct *p) { extern char ia64_ret_from_clone; struct switch_stack *child_stack, *stack; unsigned long rbs, child_rbs, rbs_size; struct pt_regs *child_ptregs; + struct pt_regs *regs = current_pt_regs(); int retval = 0; -#ifdef CONFIG_SMP - /* - * For SMP idle threads, fork_by_hand() calls do_fork with - * NULL regs. - */ - if (!regs) - return 0; -#endif - - stack = ((struct switch_stack *) regs) - 1; - child_ptregs = (struct pt_regs *) ((unsigned long) p + IA64_STK_OFFSET) - 1; child_stack = (struct switch_stack *) child_ptregs - 1; - /* copy parent's switch_stack & pt_regs to child: */ - memcpy(child_stack, stack, sizeof(*child_ptregs) + sizeof(*child_stack)); - rbs = (unsigned long) current + IA64_RBS_OFFSET; child_rbs = (unsigned long) p + IA64_RBS_OFFSET; - rbs_size = stack->ar_bspstore - rbs; - - /* copy the parent's register backing store to the child: */ - memcpy((void *) child_rbs, (void *) rbs, rbs_size); - - if (likely(user_mode(child_ptregs))) { - if (clone_flags & CLONE_SETTLS) - child_ptregs->r13 = regs->r16; /* see sys_clone2() in entry.S */ - if (user_stack_base) { - child_ptregs->r12 = user_stack_base + user_stack_size - 16; - child_ptregs->ar_bspstore = user_stack_base; - child_ptregs->ar_rnat = 0; - child_ptregs->loadrs = 0; - } - } else { - /* - * Note: we simply preserve the relative position of - * the stack pointer here. There is no need to - * allocate a scratch area here, since that will have - * been taken care of by the caller of sys_clone() - * already. - */ - child_ptregs->r12 = (unsigned long) child_ptregs - 16; /* kernel sp */ - child_ptregs->r13 = (unsigned long) p; /* set `current' pointer */ - } - child_stack->ar_bspstore = child_rbs + rbs_size; - child_stack->b0 = (unsigned long) &ia64_ret_from_clone; /* copy parts of thread_struct: */ p->thread.ksp = (unsigned long) child_stack - 16; - /* stop some PSR bits from being inherited. - * the psr.up/psr.pp bits must be cleared on fork but inherited on execve() - * therefore we must specify them explicitly here and not include them in - * IA64_PSR_BITS_TO_CLEAR. - */ - child_ptregs->cr_ipsr = ((child_ptregs->cr_ipsr | IA64_PSR_BITS_TO_SET) - & ~(IA64_PSR_BITS_TO_CLEAR | IA64_PSR_PP | IA64_PSR_UP)); - /* * NOTE: The calling convention considers all floating point * registers in the high partition (fph) to be scratch. Since @@ -480,8 +432,66 @@ copy_thread(unsigned long clone_flags, # define THREAD_FLAGS_TO_SET 0 p->thread.flags = ((current->thread.flags & ~THREAD_FLAGS_TO_CLEAR) | THREAD_FLAGS_TO_SET); + ia64_drop_fpu(p); /* don't pick up stale state from a CPU's fph */ + if (unlikely(p->flags & PF_KTHREAD)) { + if (unlikely(!user_stack_base)) { + /* fork_idle() called us */ + return 0; + } + memset(child_stack, 0, sizeof(*child_ptregs) + sizeof(*child_stack)); + child_stack->r4 = user_stack_base; /* payload */ + child_stack->r5 = user_stack_size; /* argument */ + /* + * Preserve PSR bits, except for bits 32-34 and 37-45, + * which we can't read. + */ + child_ptregs->cr_ipsr = ia64_getreg(_IA64_REG_PSR) | IA64_PSR_BN; + /* mark as valid, empty frame */ + child_ptregs->cr_ifs = 1UL << 63; + child_stack->ar_fpsr = child_ptregs->ar_fpsr + = ia64_getreg(_IA64_REG_AR_FPSR); + child_stack->pr = (1 << PRED_KERNEL_STACK); + child_stack->ar_bspstore = child_rbs; + child_stack->b0 = (unsigned long) &ia64_ret_from_clone; + + /* stop some PSR bits from being inherited. + * the psr.up/psr.pp bits must be cleared on fork but inherited on execve() + * therefore we must specify them explicitly here and not include them in + * IA64_PSR_BITS_TO_CLEAR. + */ + child_ptregs->cr_ipsr = ((child_ptregs->cr_ipsr | IA64_PSR_BITS_TO_SET) + & ~(IA64_PSR_BITS_TO_CLEAR | IA64_PSR_PP | IA64_PSR_UP)); + + return 0; + } + stack = ((struct switch_stack *) regs) - 1; + /* copy parent's switch_stack & pt_regs to child: */ + memcpy(child_stack, stack, sizeof(*child_ptregs) + sizeof(*child_stack)); + + /* copy the parent's register backing store to the child: */ + rbs_size = stack->ar_bspstore - rbs; + memcpy((void *) child_rbs, (void *) rbs, rbs_size); + if (clone_flags & CLONE_SETTLS) + child_ptregs->r13 = regs->r16; /* see sys_clone2() in entry.S */ + if (user_stack_base) { + child_ptregs->r12 = user_stack_base + user_stack_size - 16; + child_ptregs->ar_bspstore = user_stack_base; + child_ptregs->ar_rnat = 0; + child_ptregs->loadrs = 0; + } + child_stack->ar_bspstore = child_rbs + rbs_size; + child_stack->b0 = (unsigned long) &ia64_ret_from_clone; + + /* stop some PSR bits from being inherited. + * the psr.up/psr.pp bits must be cleared on fork but inherited on execve() + * therefore we must specify them explicitly here and not include them in + * IA64_PSR_BITS_TO_CLEAR. + */ + child_ptregs->cr_ipsr = ((child_ptregs->cr_ipsr | IA64_PSR_BITS_TO_SET) + & ~(IA64_PSR_BITS_TO_CLEAR | IA64_PSR_PP | IA64_PSR_UP)); + #ifdef CONFIG_PERFMON if (current->thread.pfm_context) pfm_inherit(p, child_ptregs); @@ -608,57 +618,6 @@ dump_fpu (struct pt_regs *pt, elf_fpregset_t dst) return 1; /* f0-f31 are always valid so we always return 1 */ } -long -sys_execve (const char __user *filename, - const char __user *const __user *argv, - const char __user *const __user *envp, - struct pt_regs *regs) -{ - struct filename *fname; - int error; - - fname = getname(filename); - error = PTR_ERR(fname); - if (IS_ERR(fname)) - goto out; - error = do_execve(fname->name, argv, envp, regs); - putname(fname); -out: - return error; -} - -pid_t -kernel_thread (int (*fn)(void *), void *arg, unsigned long flags) -{ - extern void start_kernel_thread (void); - unsigned long *helper_fptr = (unsigned long *) &start_kernel_thread; - struct { - struct switch_stack sw; - struct pt_regs pt; - } regs; - - memset(®s, 0, sizeof(regs)); - regs.pt.cr_iip = helper_fptr[0]; /* set entry point (IP) */ - regs.pt.r1 = helper_fptr[1]; /* set GP */ - regs.pt.r9 = (unsigned long) fn; /* 1st argument */ - regs.pt.r11 = (unsigned long) arg; /* 2nd argument */ - /* Preserve PSR bits, except for bits 32-34 and 37-45, which we can't read. */ - regs.pt.cr_ipsr = ia64_getreg(_IA64_REG_PSR) | IA64_PSR_BN; - regs.pt.cr_ifs = 1UL << 63; /* mark as valid, empty frame */ - regs.sw.ar_fpsr = regs.pt.ar_fpsr = ia64_getreg(_IA64_REG_AR_FPSR); - regs.sw.ar_bspstore = (unsigned long) current + IA64_RBS_OFFSET; - regs.sw.pr = (1 << PRED_KERNEL_STACK); - return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0, ®s.pt, 0, NULL, NULL); -} -EXPORT_SYMBOL(kernel_thread); - -/* This gets called from kernel_thread() via ia64_invoke_thread_helper(). */ -int -kernel_thread_helper (int (*fn)(void *), void *arg) -{ - return (*fn)(arg); -} - /* * Flush thread state. This is called when a thread does an execve(). */ diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c index 4265ff64219b..b7a5fffe0924 100644 --- a/arch/ia64/kernel/ptrace.c +++ b/arch/ia64/kernel/ptrace.c @@ -672,33 +672,6 @@ ptrace_attach_sync_user_rbs (struct task_struct *child) read_unlock(&tasklist_lock); } -static inline int -thread_matches (struct task_struct *thread, unsigned long addr) -{ - unsigned long thread_rbs_end; - struct pt_regs *thread_regs; - - if (ptrace_check_attach(thread, 0) < 0) - /* - * If the thread is not in an attachable state, we'll - * ignore it. The net effect is that if ADDR happens - * to overlap with the portion of the thread's - * register backing store that is currently residing - * on the thread's kernel stack, then ptrace() may end - * up accessing a stale value. But if the thread - * isn't stopped, that's a problem anyhow, so we're - * doing as well as we can... - */ - return 0; - - thread_regs = task_pt_regs(thread); - thread_rbs_end = ia64_get_user_rbs_end(thread, thread_regs, NULL); - if (!on_kernel_rbs(addr, thread_regs->ar_bspstore, thread_rbs_end)) - return 0; - - return 1; /* looks like we've got a winner */ -} - /* * Write f32-f127 back to task->thread.fph if it has been modified. */ diff --git a/arch/ia64/kernel/smpboot.c b/arch/ia64/kernel/smpboot.c index 963d2db53bfa..500f1e4d9f9d 100644 --- a/arch/ia64/kernel/smpboot.c +++ b/arch/ia64/kernel/smpboot.c @@ -347,8 +347,7 @@ ia64_sync_itc (unsigned int master) /* * Ideally sets up per-cpu profiling hooks. Doesn't do much now... */ -static inline void __devinit -smp_setup_percpu_timer (void) +static inline void smp_setup_percpu_timer(void) { } @@ -460,11 +459,6 @@ start_secondary (void *unused) return 0; } -struct pt_regs * __cpuinit idle_regs(struct pt_regs *regs) -{ - return NULL; -} - static int __cpuinit do_boot_cpu (int sapicid, int cpu, struct task_struct *idle) { @@ -568,7 +562,7 @@ smp_prepare_cpus (unsigned int max_cpus) } } -void __devinit smp_prepare_boot_cpu(void) +void smp_prepare_boot_cpu(void) { set_cpu_online(smp_processor_id(), true); cpu_set(smp_processor_id(), cpu_callin_map); @@ -718,8 +712,7 @@ smp_cpus_done (unsigned int dummy) (int)num_online_cpus(), bogosum/(500000/HZ), (bogosum/(5000/HZ))%100); } -static inline void __devinit -set_cpu_sibling_map(int cpu) +static inline void set_cpu_sibling_map(int cpu) { int i; @@ -798,8 +791,7 @@ init_smp_config(void) * identify_siblings(cpu) gets called from identify_cpu. This populates the * information related to logical execution units in per_cpu_data structure. */ -void __devinit -identify_siblings(struct cpuinfo_ia64 *c) +void identify_siblings(struct cpuinfo_ia64 *c) { long status; u16 pltid; diff --git a/arch/ia64/kernel/time.c b/arch/ia64/kernel/time.c index f6388216080d..88a794536bc0 100644 --- a/arch/ia64/kernel/time.c +++ b/arch/ia64/kernel/time.c @@ -83,7 +83,7 @@ static struct clocksource *itc_clocksource; extern cputime_t cycle_to_cputime(u64 cyc); -static void vtime_account_user(struct task_struct *tsk) +void vtime_account_user(struct task_struct *tsk) { cputime_t delta_utime; struct thread_info *ti = task_thread_info(tsk); @@ -100,18 +100,11 @@ static void vtime_account_user(struct task_struct *tsk) * accumulated times to the current process, and to prepare accounting on * the next process. */ -void vtime_task_switch(struct task_struct *prev) +void arch_vtime_task_switch(struct task_struct *prev) { struct thread_info *pi = task_thread_info(prev); struct thread_info *ni = task_thread_info(current); - if (idle_task(smp_processor_id()) != prev) - vtime_account_system(prev); - else - vtime_account_idle(prev); - - vtime_account_user(prev); - pi->ac_stamp = ni->ac_stamp; ni->ac_stime = ni->ac_utime = 0; } @@ -126,6 +119,8 @@ static cputime_t vtime_delta(struct task_struct *tsk) cputime_t delta_stime; __u64 now; + WARN_ON_ONCE(!irqs_disabled()); + now = ia64_get_itc(); delta_stime = cycle_to_cputime(ti->ac_stime + (now - ti->ac_stamp)); @@ -147,15 +142,6 @@ void vtime_account_idle(struct task_struct *tsk) account_idle_time(vtime_delta(tsk)); } -/* - * Called from the timer interrupt handler to charge accumulated user time - * to the current process. Must be called with interrupts disabled. - */ -void account_process_tick(struct task_struct *p, int user_tick) -{ - vtime_account_user(p); -} - #endif /* CONFIG_VIRT_CPU_ACCOUNTING */ static irqreturn_t @@ -257,8 +243,7 @@ static int __init nojitter_setup(char *str) __setup("nojitter", nojitter_setup); -void __devinit -ia64_init_itm (void) +void ia64_init_itm(void) { unsigned long platform_base_freq, itc_freq; struct pal_freq_ratio itc_ratio, proc_ratio; diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c index c64460b9c704..dc00b2c1b42a 100644 --- a/arch/ia64/kernel/topology.c +++ b/arch/ia64/kernel/topology.c @@ -275,7 +275,7 @@ static struct attribute * cache_default_attrs[] = { #define to_object(k) container_of(k, struct cache_info, kobj) #define to_attr(a) container_of(a, struct cache_attr, attr) -static ssize_t cache_show(struct kobject * kobj, struct attribute * attr, char * buf) +static ssize_t ia64_cache_show(struct kobject * kobj, struct attribute * attr, char * buf) { struct cache_attr *fattr = to_attr(attr); struct cache_info *this_leaf = to_object(kobj); @@ -286,7 +286,7 @@ static ssize_t cache_show(struct kobject * kobj, struct attribute * attr, char * } static const struct sysfs_ops cache_sysfs_ops = { - .show = cache_show + .show = ia64_cache_show }; static struct kobj_type cache_ktype = { |
