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-rw-r--r--arch/ia64/Kconfig13
-rw-r--r--arch/ia64/include/asm/gpio.h59
-rw-r--r--arch/ia64/include/asm/irq_remapping.h4
-rw-r--r--arch/ia64/include/asm/kvm_host.h3
-rw-r--r--arch/ia64/include/asm/kvm_para.h5
-rw-r--r--arch/ia64/include/asm/posix_types.h3
-rw-r--r--arch/ia64/include/asm/processor.h9
-rw-r--r--arch/ia64/include/asm/thread_info.h21
-rw-r--r--arch/ia64/include/asm/topology.h25
-rw-r--r--arch/ia64/kernel/fsys.S191
-rw-r--r--arch/ia64/kernel/perfmon.c10
-rw-r--r--arch/ia64/kernel/process.c22
-rw-r--r--arch/ia64/kernel/signal.c47
-rw-r--r--arch/ia64/kernel/smpboot.c63
-rw-r--r--arch/ia64/kernel/sys_ia64.c19
-rw-r--r--arch/ia64/kvm/kvm-ia64.c30
16 files changed, 78 insertions, 446 deletions
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index bd7266903bf..8186ec5ea15 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -33,6 +33,12 @@ config IA64
select ARCH_WANT_OPTIONAL_GPIOLIB
select ARCH_HAVE_NMI_SAFE_CMPXCHG
select GENERIC_IOMAP
+ select GENERIC_SMP_IDLE_THREAD
+ select ARCH_INIT_TASK
+ select ARCH_TASK_STRUCT_ALLOCATOR
+ select ARCH_THREAD_INFO_ALLOCATOR
+ select ARCH_CLOCKSOURCE_DATA
+ select GENERIC_TIME_VSYSCALL
default y
help
The Itanium Processor Family is Intel's 64-bit successor to
@@ -88,10 +94,6 @@ config GENERIC_CALIBRATE_DELAY
bool
default y
-config GENERIC_TIME_VSYSCALL
- bool
- default y
-
config HAVE_SETUP_PER_CPU_AREA
def_bool y
@@ -106,9 +108,6 @@ config EFI
bool
default y
-config ARCH_CLOCKSOURCE_DATA
- def_bool y
-
config SCHED_OMIT_FRAME_POINTER
bool
default y
diff --git a/arch/ia64/include/asm/gpio.h b/arch/ia64/include/asm/gpio.h
index 590a20debc4..b3799d88ffc 100644
--- a/arch/ia64/include/asm/gpio.h
+++ b/arch/ia64/include/asm/gpio.h
@@ -1,55 +1,4 @@
-/*
- * Generic GPIO API implementation for IA-64.
- *
- * A stright copy of that for PowerPC which was:
- *
- * Copyright (c) 2007-2008 MontaVista Software, Inc.
- *
- * Author: Anton Vorontsov <avorontsov@ru.mvista.com>
- *
- * 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.
- */
-
-#ifndef _ASM_IA64_GPIO_H
-#define _ASM_IA64_GPIO_H
-
-#include <linux/errno.h>
-#include <asm-generic/gpio.h>
-
-#ifdef CONFIG_GPIOLIB
-
-/*
- * We don't (yet) implement inlined/rapid versions for on-chip gpios.
- * Just call gpiolib.
- */
-static inline int gpio_get_value(unsigned int gpio)
-{
- return __gpio_get_value(gpio);
-}
-
-static inline void gpio_set_value(unsigned int gpio, int value)
-{
- __gpio_set_value(gpio, value);
-}
-
-static inline int gpio_cansleep(unsigned int gpio)
-{
- return __gpio_cansleep(gpio);
-}
-
-static inline int gpio_to_irq(unsigned int gpio)
-{
- return __gpio_to_irq(gpio);
-}
-
-static inline int irq_to_gpio(unsigned int irq)
-{
- return -EINVAL;
-}
-
-#endif /* CONFIG_GPIOLIB */
-
-#endif /* _ASM_IA64_GPIO_H */
+#ifndef __LINUX_GPIO_H
+#warning Include linux/gpio.h instead of asm/gpio.h
+#include <linux/gpio.h>
+#endif
diff --git a/arch/ia64/include/asm/irq_remapping.h b/arch/ia64/include/asm/irq_remapping.h
new file mode 100644
index 00000000000..a8687b1d890
--- /dev/null
+++ b/arch/ia64/include/asm/irq_remapping.h
@@ -0,0 +1,4 @@
+#ifndef __IA64_INTR_REMAPPING_H
+#define __IA64_INTR_REMAPPING_H
+#define irq_remapping_enabled 0
+#endif
diff --git a/arch/ia64/include/asm/kvm_host.h b/arch/ia64/include/asm/kvm_host.h
index e35b3a84a40..6d6a5ac48d8 100644
--- a/arch/ia64/include/asm/kvm_host.h
+++ b/arch/ia64/include/asm/kvm_host.h
@@ -365,6 +365,7 @@ struct thash_cb {
};
struct kvm_vcpu_stat {
+ u32 halt_wakeup;
};
struct kvm_vcpu_arch {
@@ -448,6 +449,8 @@ struct kvm_vcpu_arch {
char log_buf[VMM_LOG_LEN];
union context host;
union context guest;
+
+ char mmio_data[8];
};
struct kvm_vm_stat {
diff --git a/arch/ia64/include/asm/kvm_para.h b/arch/ia64/include/asm/kvm_para.h
index 1588aee781a..2019cb99335 100644
--- a/arch/ia64/include/asm/kvm_para.h
+++ b/arch/ia64/include/asm/kvm_para.h
@@ -26,6 +26,11 @@ static inline unsigned int kvm_arch_para_features(void)
return 0;
}
+static inline bool kvm_check_and_clear_guest_paused(void)
+{
+ return false;
+}
+
#endif
#endif
diff --git a/arch/ia64/include/asm/posix_types.h b/arch/ia64/include/asm/posix_types.h
index 7323ab9467e..99ee1d6510c 100644
--- a/arch/ia64/include/asm/posix_types.h
+++ b/arch/ia64/include/asm/posix_types.h
@@ -1,9 +1,6 @@
#ifndef _ASM_IA64_POSIX_TYPES_H
#define _ASM_IA64_POSIX_TYPES_H
-typedef unsigned int __kernel_nlink_t;
-#define __kernel_nlink_t __kernel_nlink_t
-
typedef unsigned long __kernel_sigset_t; /* at least 32 bits */
#include <asm-generic/posix_types.h>
diff --git a/arch/ia64/include/asm/processor.h b/arch/ia64/include/asm/processor.h
index 483f6c6a423..832dd3789e9 100644
--- a/arch/ia64/include/asm/processor.h
+++ b/arch/ia64/include/asm/processor.h
@@ -34,8 +34,7 @@
* each (assuming 8KB page size), for a total of 8TB of user virtual
* address space.
*/
-#define TASK_SIZE_OF(tsk) ((tsk)->thread.task_size)
-#define TASK_SIZE TASK_SIZE_OF(current)
+#define TASK_SIZE DEFAULT_TASK_SIZE
/*
* This decides where the kernel will search for a free chunk of vm
@@ -280,7 +279,6 @@ struct thread_struct {
__u8 pad[3];
__u64 ksp; /* kernel stack pointer */
__u64 map_base; /* base address for get_unmapped_area() */
- __u64 task_size; /* limit for task size */
__u64 rbs_bot; /* the base address for the RBS */
int last_fph_cpu; /* CPU that may hold the contents of f32-f127 */
@@ -303,7 +301,6 @@ struct thread_struct {
.ksp = 0, \
.map_base = DEFAULT_MAP_BASE, \
.rbs_bot = STACK_TOP - DEFAULT_USER_STACK_SIZE, \
- .task_size = DEFAULT_TASK_SIZE, \
.last_fph_cpu = -1, \
INIT_THREAD_PM \
.dbr = {0, }, \
@@ -343,9 +340,6 @@ struct task_struct;
*/
#define release_thread(dead_task)
-/* Prepare to copy thread state - unlazy all lazy status */
-#define prepare_to_copy(tsk) do { } while (0)
-
/*
* This is the mechanism for creating a new kernel thread.
*
@@ -723,7 +717,6 @@ extern unsigned long boot_option_idle_override;
enum idle_boot_override {IDLE_NO_OVERRIDE=0, IDLE_HALT, IDLE_FORCE_MWAIT,
IDLE_NOMWAIT, IDLE_POLL};
-void cpu_idle_wait(void);
void default_idle(void);
#define ia64_platform_is(x) (strcmp(x, platform_name) == 0)
diff --git a/arch/ia64/include/asm/thread_info.h b/arch/ia64/include/asm/thread_info.h
index e054bcc4273..f7ee8537831 100644
--- a/arch/ia64/include/asm/thread_info.h
+++ b/arch/ia64/include/asm/thread_info.h
@@ -54,8 +54,6 @@ struct thread_info {
}, \
}
-#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR
-
#ifndef ASM_OFFSETS_C
/* how to get the thread information struct from C */
#define current_thread_info() ((struct thread_info *) ((char *) current + IA64_TASK_SIZE))
@@ -84,7 +82,6 @@ struct thread_info {
#endif
#define end_of_stack(p) (unsigned long *)((void *)(p) + IA64_RBS_OFFSET)
-#define __HAVE_ARCH_TASK_STRUCT_ALLOCATOR
#define alloc_task_struct_node(node) \
({ \
struct page *page = alloc_pages_node(node, GFP_KERNEL | __GFP_COMP, \
@@ -144,7 +141,23 @@ static inline void set_restore_sigmask(void)
{
struct thread_info *ti = current_thread_info();
ti->status |= TS_RESTORE_SIGMASK;
- set_bit(TIF_SIGPENDING, &ti->flags);
+ WARN_ON(!test_bit(TIF_SIGPENDING, &ti->flags));
+}
+static inline void clear_restore_sigmask(void)
+{
+ current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
+}
+static inline bool test_restore_sigmask(void)
+{
+ return current_thread_info()->status & TS_RESTORE_SIGMASK;
+}
+static inline bool test_and_clear_restore_sigmask(void)
+{
+ struct thread_info *ti = current_thread_info();
+ if (!(ti->status & TS_RESTORE_SIGMASK))
+ return false;
+ ti->status &= ~TS_RESTORE_SIGMASK;
+ return true;
}
#endif /* !__ASSEMBLY__ */
diff --git a/arch/ia64/include/asm/topology.h b/arch/ia64/include/asm/topology.h
index 09f646753d1..a2496e449b7 100644
--- a/arch/ia64/include/asm/topology.h
+++ b/arch/ia64/include/asm/topology.h
@@ -70,31 +70,6 @@ void build_cpu_to_node_map(void);
.nr_balance_failed = 0, \
}
-/* sched_domains SD_NODE_INIT for IA64 NUMA machines */
-#define SD_NODE_INIT (struct sched_domain) { \
- .parent = NULL, \
- .child = NULL, \
- .groups = NULL, \
- .min_interval = 8, \
- .max_interval = 8*(min(num_online_cpus(), 32U)), \
- .busy_factor = 64, \
- .imbalance_pct = 125, \
- .cache_nice_tries = 2, \
- .busy_idx = 3, \
- .idle_idx = 2, \
- .newidle_idx = 0, \
- .wake_idx = 0, \
- .forkexec_idx = 0, \
- .flags = SD_LOAD_BALANCE \
- | SD_BALANCE_NEWIDLE \
- | SD_BALANCE_EXEC \
- | SD_BALANCE_FORK \
- | SD_SERIALIZE, \
- .last_balance = jiffies, \
- .balance_interval = 64, \
- .nr_balance_failed = 0, \
-}
-
#endif /* CONFIG_NUMA */
#ifdef CONFIG_SMP
diff --git a/arch/ia64/kernel/fsys.S b/arch/ia64/kernel/fsys.S
index cc26edac0ec..e662f178b99 100644
--- a/arch/ia64/kernel/fsys.S
+++ b/arch/ia64/kernel/fsys.S
@@ -372,175 +372,6 @@ ENTRY(fsys_clock_gettime)
END(fsys_clock_gettime)
/*
- * long fsys_rt_sigprocmask (int how, sigset_t *set, sigset_t *oset, size_t sigsetsize).
- */
-#if _NSIG_WORDS != 1
-# error Sorry, fsys_rt_sigprocmask() needs to be updated for _NSIG_WORDS != 1.
-#endif
-ENTRY(fsys_rt_sigprocmask)
- .prologue
- .altrp b6
- .body
-
- add r2=IA64_TASK_BLOCKED_OFFSET,r16
- add r9=TI_FLAGS+IA64_TASK_SIZE,r16
- cmp4.ltu p6,p0=SIG_SETMASK,r32
-
- cmp.ne p15,p0=r0,r34 // oset != NULL?
- tnat.nz p8,p0=r34
- add r31=IA64_TASK_SIGHAND_OFFSET,r16
- ;;
- ld8 r3=[r2] // read/prefetch current->blocked
- ld4 r9=[r9]
- tnat.nz.or p6,p0=r35
-
- cmp.ne.or p6,p0=_NSIG_WORDS*8,r35
- tnat.nz.or p6,p0=r32
-(p6) br.spnt.few .fail_einval // fail with EINVAL
- ;;
-#ifdef CONFIG_SMP
- ld8 r31=[r31] // r31 <- current->sighand
-#endif
- and r9=TIF_ALLWORK_MASK,r9
- tnat.nz.or p8,p0=r33
- ;;
- cmp.ne p7,p0=0,r9
- cmp.eq p6,p0=r0,r33 // set == NULL?
- add r31=IA64_SIGHAND_SIGLOCK_OFFSET,r31 // r31 <- current->sighand->siglock
-(p8) br.spnt.few .fail_efault // fail with EFAULT
-(p7) br.spnt.many fsys_fallback_syscall // got pending kernel work...
-(p6) br.dpnt.many .store_mask // -> short-circuit to just reading the signal mask
-
- /* Argh, we actually have to do some work and _update_ the signal mask: */
-
-EX(.fail_efault, probe.r.fault r33, 3) // verify user has read-access to *set
-EX(.fail_efault, ld8 r14=[r33]) // r14 <- *set
- mov r17=(1 << (SIGKILL - 1)) | (1 << (SIGSTOP - 1))
- ;;
-
- RSM_PSR_I(p0, r18, r19) // mask interrupt delivery
- andcm r14=r14,r17 // filter out SIGKILL & SIGSTOP
- mov r8=EINVAL // default to EINVAL
-
-#ifdef CONFIG_SMP
- // __ticket_spin_trylock(r31)
- ld4 r17=[r31]
- ;;
- mov.m ar.ccv=r17
- extr.u r9=r17,17,15
- adds r19=1,r17
- extr.u r18=r17,0,15
- ;;
- cmp.eq p6,p7=r9,r18
- ;;
-(p6) cmpxchg4.acq r9=[r31],r19,ar.ccv
-(p6) dep.z r20=r19,1,15 // next serving ticket for unlock
-(p7) br.cond.spnt.many .lock_contention
- ;;
- cmp4.eq p0,p7=r9,r17
- adds r31=2,r31
-(p7) br.cond.spnt.many .lock_contention
- ld8 r3=[r2] // re-read current->blocked now that we hold the lock
- ;;
-#else
- ld8 r3=[r2] // re-read current->blocked now that we hold the lock
-#endif
- add r18=IA64_TASK_PENDING_OFFSET+IA64_SIGPENDING_SIGNAL_OFFSET,r16
- add r19=IA64_TASK_SIGNAL_OFFSET,r16
- cmp4.eq p6,p0=SIG_BLOCK,r32
- ;;
- ld8 r19=[r19] // r19 <- current->signal
- cmp4.eq p7,p0=SIG_UNBLOCK,r32
- cmp4.eq p8,p0=SIG_SETMASK,r32
- ;;
- ld8 r18=[r18] // r18 <- current->pending.signal
- .pred.rel.mutex p6,p7,p8
-(p6) or r14=r3,r14 // SIG_BLOCK
-(p7) andcm r14=r3,r14 // SIG_UNBLOCK
-
-(p8) mov r14=r14 // SIG_SETMASK
-(p6) mov r8=0 // clear error code
- // recalc_sigpending()
- add r17=IA64_SIGNAL_GROUP_STOP_COUNT_OFFSET,r19
-
- add r19=IA64_SIGNAL_SHARED_PENDING_OFFSET+IA64_SIGPENDING_SIGNAL_OFFSET,r19
- ;;
- ld4 r17=[r17] // r17 <- current->signal->group_stop_count
-(p7) mov r8=0 // clear error code
-
- ld8 r19=[r19] // r19 <- current->signal->shared_pending
- ;;
- cmp4.gt p6,p7=r17,r0 // p6/p7 <- (current->signal->group_stop_count > 0)?
-(p8) mov r8=0 // clear error code
-
- or r18=r18,r19 // r18 <- current->pending | current->signal->shared_pending
- ;;
- // r18 <- (current->pending | current->signal->shared_pending) & ~current->blocked:
- andcm r18=r18,r14
- add r9=TI_FLAGS+IA64_TASK_SIZE,r16
- ;;
-
-(p7) cmp.ne.or.andcm p6,p7=r18,r0 // p6/p7 <- signal pending
- mov r19=0 // i must not leak kernel bits...
-(p6) br.cond.dpnt.many .sig_pending
- ;;
-
-1: ld4 r17=[r9] // r17 <- current->thread_info->flags
- ;;
- mov ar.ccv=r17
- and r18=~_TIF_SIGPENDING,r17 // r18 <- r17 & ~(1 << TIF_SIGPENDING)
- ;;
-
- st8 [r2]=r14 // update current->blocked with new mask
- cmpxchg4.acq r8=[r9],r18,ar.ccv // current->thread_info->flags <- r18
- ;;
- cmp.ne p6,p0=r17,r8 // update failed?
-(p6) br.cond.spnt.few 1b // yes -> retry
-
-#ifdef CONFIG_SMP
- // __ticket_spin_unlock(r31)
- st2.rel [r31]=r20
- mov r20=0 // i must not leak kernel bits...
-#endif
- SSM_PSR_I(p0, p9, r31)
- ;;
-
- srlz.d // ensure psr.i is set again
- mov r18=0 // i must not leak kernel bits...
-
-.store_mask:
-EX(.fail_efault, (p15) probe.w.fault r34, 3) // verify user has write-access to *oset
-EX(.fail_efault, (p15) st8 [r34]=r3)
- mov r2=0 // i must not leak kernel bits...
- mov r3=0 // i must not leak kernel bits...
- mov r8=0 // return 0
- mov r9=0 // i must not leak kernel bits...
- mov r14=0 // i must not leak kernel bits...
- mov r17=0 // i must not leak kernel bits...
- mov r31=0 // i must not leak kernel bits...
- FSYS_RETURN
-
-.sig_pending:
-#ifdef CONFIG_SMP
- // __ticket_spin_unlock(r31)
- st2.rel [r31]=r20 // release the lock
-#endif
- SSM_PSR_I(p0, p9, r17)
- ;;
- srlz.d
- br.sptk.many fsys_fallback_syscall // with signal pending, do the heavy-weight syscall
-
-#ifdef CONFIG_SMP
-.lock_contention:
- /* Rather than spinning here, fall back on doing a heavy-weight syscall. */
- SSM_PSR_I(p0, p9, r17)
- ;;
- srlz.d
- br.sptk.many fsys_fallback_syscall
-#endif
-END(fsys_rt_sigprocmask)
-
-/*
* fsys_getcpu doesn't use the third parameter in this implementation. It reads
* current_thread_info()->cpu and corresponding node in cpu_to_node_map.
*/
@@ -559,11 +390,15 @@ ENTRY(fsys_getcpu)
;;
tnat.nz p7,p0 = r33 // I guard against NaT argument
(p7) br.cond.spnt.few .fail_einval // B
+ ;;
+ cmp.ne p6,p0=r32,r0
+ cmp.ne p7,p0=r33,r0
+ ;;
#ifdef CONFIG_NUMA
movl r17=cpu_to_node_map
;;
-EX(.fail_efault, probe.w.fault r32, 3) // M This takes 5 cycles
-EX(.fail_efault, probe.w.fault r33, 3) // M This takes 5 cycles
+EX(.fail_efault, (p6) probe.w.fault r32, 3) // M This takes 5 cycles
+EX(.fail_efault, (p7) probe.w.fault r33, 3) // M This takes 5 cycles
shladd r18=r3,1,r17
;;
ld2 r20=[r18] // r20 = cpu_to_node_map[cpu]
@@ -573,20 +408,20 @@ EX(.fail_efault, probe.w.fault r33, 3) // M This takes 5 cycles
(p8) br.spnt.many fsys_fallback_syscall
;;
;;
-EX(.fail_efault, st4 [r32] = r3)
-EX(.fail_efault, st2 [r33] = r20)
+EX(.fail_efault, (p6) st4 [r32] = r3)
+EX(.fail_efault, (p7) st2 [r33] = r20)
mov r8=0
;;
#else
-EX(.fail_efault, probe.w.fault r32, 3) // M This takes 5 cycles
-EX(.fail_efault, probe.w.fault r33, 3) // M This takes 5 cycles
+EX(.fail_efault, (p6) probe.w.fault r32, 3) // M This takes 5 cycles
+EX(.fail_efault, (p7) probe.w.fault r33, 3) // M This takes 5 cycles
and r2 = TIF_ALLWORK_MASK,r2
;;
cmp.ne p8,p0=0,r2
(p8) br.spnt.many fsys_fallback_syscall
;;
-EX(.fail_efault, st4 [r32] = r3)
-EX(.fail_efault, st2 [r33] = r0)
+EX(.fail_efault, (p6) st4 [r32] = r3)
+EX(.fail_efault, (p7) st2 [r33] = r0)
mov r8=0
;;
#endif
@@ -916,7 +751,7 @@ paravirt_fsyscall_table:
data8 0 // sigaltstack
data8 0 // rt_sigaction
data8 0 // rt_sigpending
- data8 fsys_rt_sigprocmask // rt_sigprocmask
+ data8 0 // rt_sigprocmask
data8 0 // rt_sigqueueinfo // 1180
data8 0 // rt_sigreturn
data8 0 // rt_sigsuspend
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index f00ba025375..d7f558c1e71 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -604,12 +604,6 @@ pfm_unprotect_ctx_ctxsw(pfm_context_t *x, unsigned long f)
spin_unlock(&(x)->ctx_lock);
}
-static inline unsigned long
-pfm_get_unmapped_area(struct file *file, unsigned long addr, unsigned long len, unsigned long pgoff, unsigned long flags, unsigned long exec)
-{
- return get_unmapped_area(file, addr, len, pgoff, flags);
-}
-
/* forward declaration */
static const struct dentry_operations pfmfs_dentry_operations;
@@ -2333,8 +2327,8 @@ pfm_smpl_buffer_alloc(struct task_struct *task, struct file *filp, pfm_context_t
down_write(&task->mm->mmap_sem);
/* find some free area in address space, must have mmap sem held */
- vma->vm_start = pfm_get_unmapped_area(NULL, 0, size, 0, MAP_PRIVATE|MAP_ANONYMOUS, 0);
- if (vma->vm_start == 0UL) {
+ vma->vm_start = get_unmapped_area(NULL, 0, size, 0, MAP_PRIVATE|MAP_ANONYMOUS);
+ if (IS_ERR_VALUE(vma->vm_start)) {
DPRINT(("Cannot find unmapped area for size %ld\n", size));
up_write(&task->mm->mmap_sem);
goto error;
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index ce74e143aea..dd6fc144974 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -199,8 +199,6 @@ do_notify_resume_user(sigset_t *unused, struct sigscratch *scr, long in_syscall)
if (test_thread_flag(TIF_NOTIFY_RESUME)) {
clear_thread_flag(TIF_NOTIFY_RESUME);
tracehook_notify_resume(&scr->pt);
- if (current->replacement_session_keyring)
- key_replace_session_keyring();
}
/* copy user rbs to kernel rbs */
@@ -273,26 +271,6 @@ static inline void play_dead(void)
}
#endif /* CONFIG_HOTPLUG_CPU */
-static void do_nothing(void *unused)
-{
-}
-
-/*
- * cpu_idle_wait - Used to ensure that all the CPUs discard old value of
- * pm_idle and update to new pm_idle value. Required while changing pm_idle
- * handler on SMP systems.
- *
- * Caller must have changed pm_idle to the new value before the call. Old
- * pm_idle value will not be used by any CPU after the return of this function.
- */
-void cpu_idle_wait(void)
-{
- smp_mb();
- /* kick all the CPUs so that they exit out of pm_idle */
- smp_call_function(do_nothing, NULL, 1);
-}
-EXPORT_SYMBOL_GPL(cpu_idle_wait);
-
void __attribute__((noreturn))
cpu_idle (void)
{
diff --git a/arch/ia64/kernel/signal.c b/arch/ia64/kernel/signal.c
index 7bdafc8788b..a199be1fe61 100644
--- a/arch/ia64/kernel/signal.c
+++ b/arch/ia64/kernel/signal.c
@@ -30,7 +30,6 @@
#define DEBUG_SIG 0
#define STACK_ALIGN 16 /* minimal alignment for stack pointer */
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
#if _NSIG_WORDS > 1
# define PUT_SIGSET(k,u) __copy_to_user((u)->sig, (k)->sig, sizeof(sigset_t))
@@ -200,14 +199,7 @@ ia64_rt_sigreturn (struct sigscratch *scr)
if (GET_SIGSET(&set, &sc->sc_mask))
goto give_sigsegv;
- sigdelsetmask(&set, ~_BLOCKABLE);
-
- spin_lock_irq(&current->sighand->siglock);
- {
- current->blocked = set;
- recalc_sigpending();
- }
- spin_unlock_irq(&current->sighand->siglock);
+ set_current_blocked(&set);
if (restore_sigcontext(sc, scr))
goto give_sigsegv;
@@ -421,23 +413,13 @@ setup_frame (int sig, struct k_sigaction *ka, siginfo_t *info, sigset_t *set,
}
static long
-handle_signal (unsigned long sig, struct k_sigaction *ka, siginfo_t *info, sigset_t *oldset,
+handle_signal (unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
struct sigscratch *scr)
{
- if (!setup_frame(sig, ka, info, oldset, scr))
+ if (!setup_frame(sig, ka, info, sigmask_to_save(), scr))
return 0;
- spin_lock_irq(&current->sighand->siglock);
- sigorsets(&current->blocked, &current->blocked, &ka->sa.sa_mask);
- if (!(ka->sa.sa_flags & SA_NODEFER))
- sigaddset(&current->blocked, sig);
- recalc_sigpending();
- spin_unlock_irq(&current->sighand->siglock);
-
- /*
- * Let tracing know that we've done the handler setup.
- */
- tracehook_signal_handler(sig, info, ka, &scr->pt,
+ signal_delivered(sig, info, ka, &scr->pt,
test_thread_flag(TIF_SINGLESTEP));
return 1;
@@ -451,7 +433,6 @@ void
ia64_do_signal (struct sigscratch *scr, long in_syscall)
{
struct k_sigaction ka;
- sigset_t *oldset;
siginfo_t info;
long restart = in_syscall;
long errno = scr->pt.r8;
@@ -464,11 +445,6 @@ ia64_do_signal (struct sigscratch *scr, long in_syscall)
if (!user_mode(&scr->pt))
return;
- if (current_thread_info()->status & TS_RESTORE_SIGMASK)
- oldset = &current->saved_sigmask;
- else
- oldset = &current->blocked;
-
/*
* This only loops in the rare cases of handle_signal() failing, in which case we
* need to push through a forced SIGSEGV.
@@ -518,16 +494,8 @@ ia64_do_signal (struct sigscratch *scr, 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, &ka, &info, oldset, scr)) {
- /*
- * A signal was successfully delivered; the saved
- * sigmask will have been stored in the signal frame,
- * and will be restored by sigreturn, so we can simply
- * clear the TS_RESTORE_SIGMASK flag.
- */
- current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
+ if (handle_signal(signr, &ka, &info, scr))
return;
- }
}
/* Did we come from a system call? */
@@ -549,8 +517,5 @@ ia64_do_signal (struct sigscratch *scr, long in_syscall)
/* if there's no signal to deliver, we just put the saved sigmask
* back */
- if (current_thread_info()->status & TS_RESTORE_SIGMASK) {
- current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
- sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
- }
+ restore_saved_sigmask();
}
diff --git a/arch/ia64/kernel/smpboot.c b/arch/ia64/kernel/smpboot.c
index 796f6a5b966..1113b8aba07 100644
--- a/arch/ia64/kernel/smpboot.c
+++ b/arch/ia64/kernel/smpboot.c
@@ -75,13 +75,6 @@
#endif
/*
- * Store all idle threads, this can be reused instead of creating
- * a new thread. Also avoids complicated thread destroy functionality
- * for idle threads.
- */
-struct task_struct *idle_thread_array[NR_CPUS];
-
-/*
* Global array allocated for NR_CPUS at boot time
*/
struct sal_to_os_boot sal_boot_rendez_state[NR_CPUS];
@@ -94,13 +87,7 @@ struct sal_to_os_boot *sal_state_for_booting_cpu = &sal_boot_rendez_state[0];
#define set_brendez_area(x) (sal_state_for_booting_cpu = &sal_boot_rendez_state[(x)]);
-#define get_idle_for_cpu(x) (idle_thread_array[(x)])
-#define set_idle_for_cpu(x,p) (idle_thread_array[(x)] = (p))
-
#else
-
-#define get_idle_for_cpu(x) (NULL)
-#define set_idle_for_cpu(x,p)
#define set_brendez_area(x)
#endif
@@ -480,54 +467,12 @@ struct pt_regs * __cpuinit idle_regs(struct pt_regs *regs)
return NULL;
}
-struct create_idle {
- struct work_struct work;
- struct task_struct *idle;
- struct completion done;
- int cpu;
-};
-
-void __cpuinit
-do_fork_idle(struct work_struct *work)
-{
- struct create_idle *c_idle =
- container_of(work, struct create_idle, work);
-
- c_idle->idle = fork_idle(c_idle->cpu);
- complete(&c_idle->done);
-}
-
static int __cpuinit
-do_boot_cpu (int sapicid, int cpu)
+do_boot_cpu (int sapicid, int cpu, struct task_struct *idle)
{
int timeout;
- struct create_idle c_idle = {
- .work = __WORK_INITIALIZER(c_idle.work, do_fork_idle),
- .cpu = cpu,
- .done = COMPLETION_INITIALIZER(c_idle.done),
- };
-
- /*
- * We can't use kernel_thread since we must avoid to
- * reschedule the child.
- */
- c_idle.idle = get_idle_for_cpu(cpu);
- if (c_idle.idle) {
- init_idle(c_idle.idle, cpu);
- goto do_rest;
- }
-
- schedule_work(&c_idle.work);
- wait_for_completion(&c_idle.done);
-
- if (IS_ERR(c_idle.idle))
- panic("failed fork for CPU %d", cpu);
-
- set_idle_for_cpu(cpu, c_idle.idle);
-
-do_rest:
- task_for_booting_cpu = c_idle.idle;
+ task_for_booting_cpu = idle;
Dprintk("Sending wakeup vector %lu to AP 0x%x/0x%x.\n", ap_wakeup_vector, cpu, sapicid);
set_brendez_area(cpu);
@@ -793,7 +738,7 @@ set_cpu_sibling_map(int cpu)
}
int __cpuinit
-__cpu_up (unsigned int cpu)
+__cpu_up(unsigned int cpu, struct task_struct *tidle)
{
int ret;
int sapicid;
@@ -811,7 +756,7 @@ __cpu_up (unsigned int cpu)
per_cpu(cpu_state, cpu) = CPU_UP_PREPARE;
/* Processor goes to start_secondary(), sets online flag */
- ret = do_boot_cpu(sapicid, cpu);
+ ret = do_boot_cpu(sapicid, cpu, tidle);
if (ret < 0)
return ret;
diff --git a/arch/ia64/kernel/sys_ia64.c b/arch/ia64/kernel/sys_ia64.c
index 609d50056a6..d9439ef2f66 100644
--- a/arch/ia64/kernel/sys_ia64.c
+++ b/arch/ia64/kernel/sys_ia64.c
@@ -171,22 +171,9 @@ asmlinkage unsigned long
ia64_mremap (unsigned long addr, unsigned long old_len, unsigned long new_len, unsigned long flags,
unsigned long new_addr)
{
- extern unsigned long do_mremap (unsigned long addr,
- unsigned long old_len,
- unsigned long new_len,
- unsigned long flags,
- unsigned long new_addr);
-
- down_write(&current->mm->mmap_sem);
- {
- addr = do_mremap(addr, old_len, new_len, flags, new_addr);
- }
- up_write(&current->mm->mmap_sem);
-
- if (IS_ERR((void *) addr))
- return addr;
-
- force_successful_syscall_return();
+ addr = sys_mremap(addr, old_len, new_len, flags, new_addr);
+ if (!IS_ERR((void *) addr))
+ force_successful_syscall_return();
return addr;
}
diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c
index 463fb3bbe11..bd77cb507c1 100644
--- a/arch/ia64/kvm/kvm-ia64.c
+++ b/arch/ia64/kvm/kvm-ia64.c
@@ -232,12 +232,12 @@ static int handle_mmio(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
if ((p->addr & PAGE_MASK) == IOAPIC_DEFAULT_BASE_ADDRESS)
goto mmio;
vcpu->mmio_needed = 1;
- vcpu->mmio_phys_addr = kvm_run->mmio.phys_addr = p->addr;
- vcpu->mmio_size = kvm_run->mmio.len = p->size;
+ vcpu->mmio_fragments[0].gpa = kvm_run->mmio.phys_addr = p->addr;
+ vcpu->mmio_fragments[0].len = kvm_run->mmio.len = p->size;
vcpu->mmio_is_write = kvm_run->mmio.is_write = !p->dir;
if (vcpu->mmio_is_write)
- memcpy(vcpu->mmio_data, &p->data, p->size);
+ memcpy(vcpu->arch.mmio_data, &p->data, p->size);
memcpy(kvm_run->mmio.data, &p->data, p->size);
kvm_run->exit_reason = KVM_EXIT_MMIO;
return 0;
@@ -719,7 +719,7 @@ static void kvm_set_mmio_data(struct kvm_vcpu *vcpu)
struct kvm_mmio_req *p = kvm_get_vcpu_ioreq(vcpu);
if (!vcpu->mmio_is_write)
- memcpy(&p->data, vcpu->mmio_data, 8);
+ memcpy(&p->data, vcpu->arch.mmio_data, 8);
p->state = STATE_IORESP_READY;
}
@@ -739,7 +739,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
}
if (vcpu->mmio_needed) {
- memcpy(vcpu->mmio_data, kvm_run->mmio.data, 8);
+ memcpy(vcpu->arch.mmio_data, kvm_run->mmio.data, 8);
kvm_set_mmio_data(vcpu);
vcpu->mmio_read_completed = 1;
vcpu->mmio_needed = 0;
@@ -1872,21 +1872,6 @@ void kvm_arch_hardware_unsetup(void)
{
}
-void kvm_vcpu_kick(struct kvm_vcpu *vcpu)
-{
- int me;
- int cpu = vcpu->cpu;
-
- if (waitqueue_active(&vcpu->wq))
- wake_up_interruptible(&vcpu->wq);
-
- me = get_cpu();
- if (cpu != me && (unsigned) cpu < nr_cpu_ids && cpu_online(cpu))
- if (!test_and_set_bit(KVM_REQ_KICK, &vcpu->requests))
- smp_send_reschedule(cpu);
- put_cpu();
-}
-
int kvm_apic_set_irq(struct kvm_vcpu *vcpu, struct kvm_lapic_irq *irq)
{
return __apic_accept_irq(vcpu, irq->vector);
@@ -1956,6 +1941,11 @@ int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu)
(kvm_highest_pending_irq(vcpu) != -1);
}
+int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu)
+{
+ return (!test_and_set_bit(KVM_REQ_KICK, &vcpu->requests));
+}
+
int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu,
struct kvm_mp_state *mp_state)
{