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Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile

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Pull arch/tile updates from Chris Metcalf:
 "These are mostly nohz_full changes, plus a smattering of minor fixes
  (notably a couple for ftrace)"

* git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  tile: nohz: warn if nohz_full uses hypervisor shared cores
  tile: ftrace: fix function_graph tracer issues
  tile: map data region shadow of kernel as R/W
  tile: support CONTEXT_TRACKING and thus NOHZ_FULL
  tile: support arch_irq_work_raise
  arch: tile: fix null pointer dereference on pt_regs pointer
  tile/elf: reorganize notify_exec()
  tile: use si_int instead of si_ptr for compat_siginfo
This commit is contained in:
Linus Torvalds
2015-04-17 16:03:05 -04:00
parent bfaf245022 128f3cb939
commit 6b6e177d63
21 changed files with 201 additions and 66 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
arch/tile/include/asm/Kbuild
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@@ -16,7 +16,6 @@ generic-y += ioctl.h
generic-y += ioctls.h
generic-y += ipcbuf.h
generic-y += irq_regs.h
generic-y += irq_work.h
generic-y += local.h
generic-y += local64.h
generic-y += mcs_spinlock.h

2
arch/tile/include/asm/ftrace.h
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@@ -23,6 +23,8 @@
#ifndef __ASSEMBLY__
extern void __mcount(void);
#define ARCH_SUPPORTS_FTRACE_OPS 1
#ifdef CONFIG_DYNAMIC_FTRACE
static inline unsigned long ftrace_call_adjust(unsigned long addr)
{

14
arch/tile/include/asm/irq_work.h Normal file
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@@ -0,0 +1,14 @@
#ifndef __ASM_IRQ_WORK_H
#define __ASM_IRQ_WORK_H
static inline bool arch_irq_work_has_interrupt(void)
{
#ifdef CONFIG_SMP
extern bool self_interrupt_ok;
return self_interrupt_ok;
#else
return false;
#endif
}
#endif /* __ASM_IRQ_WORK_H */

1
arch/tile/include/asm/smp.h
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@@ -69,6 +69,7 @@ static inline int xy_to_cpu(int x, int y)
#define MSG_TAG_STOP_CPU 2
#define MSG_TAG_CALL_FUNCTION_MANY 3
#define MSG_TAG_CALL_FUNCTION_SINGLE 4
#define MSG_TAG_IRQ_WORK 5
/* Hook for the generic smp_call_function_many() routine. */
static inline void arch_send_call_function_ipi_mask(struct cpumask *mask)

9
arch/tile/include/asm/thread_info.h
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@@ -124,6 +124,7 @@ extern void _cpu_idle(void);
#define TIF_NOTIFY_RESUME 8 /* callback before returning to user */
#define TIF_SYSCALL_TRACEPOINT 9 /* syscall tracepoint instrumentation */
#define TIF_POLLING_NRFLAG 10 /* idle is polling for TIF_NEED_RESCHED */
#define TIF_NOHZ 11 /* in adaptive nohz mode */
#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
@@ -136,14 +137,16 @@ extern void _cpu_idle(void);
#define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME)
#define _TIF_SYSCALL_TRACEPOINT (1<<TIF_SYSCALL_TRACEPOINT)
#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
#define _TIF_NOHZ (1<<TIF_NOHZ)
/* Work to do on any return to user space. */
#define _TIF_ALLWORK_MASK \
(_TIF_SIGPENDING|_TIF_NEED_RESCHED|_TIF_SINGLESTEP|\
_TIF_ASYNC_TLB|_TIF_NOTIFY_RESUME)
(_TIF_SIGPENDING | _TIF_NEED_RESCHED | _TIF_SINGLESTEP | \
_TIF_ASYNC_TLB | _TIF_NOTIFY_RESUME | _TIF_NOHZ)
/* Work to do at syscall entry. */
#define _TIF_SYSCALL_ENTRY_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_TRACEPOINT)
#define _TIF_SYSCALL_ENTRY_WORK \
(_TIF_SYSCALL_TRACE | _TIF_SYSCALL_TRACEPOINT | _TIF_NOHZ)
/* Work to do at syscall exit. */
#define _TIF_SYSCALL_EXIT_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_TRACEPOINT)