Stephane Eranian <[EMAIL PROTECTED]> writes: > @@ -557,6 +561,10 @@ static inline void __switch_to_xtra(stru > */ > memset(tss->io_bitmap, 0xff, prev->io_bitmap_max); > } > + > + if (test_tsk_thread_flag(next_p, TIF_PERFMON_CTXSW) > + || test_tsk_thread_flag(prev_p, TIF_PERFMON_CTXSW)) > + pfm_ctxsw(prev_p, next_p); > }
I thought we had agreed earlier to put this into single "all uncommon bits" check first? > > /* > @@ -661,7 +669,7 @@ __switch_to(struct task_struct *prev_p, > * Now maybe reload the debug registers and handle I/O bitmaps > */ > if (unlikely((task_thread_info(next_p)->flags & _TIF_WORK_CTXSW)) > - || test_tsk_thread_flag(prev_p, TIF_IO_BITMAP)) > + || (task_thread_info(prev_p)->flags & _TIF_WORK_CTXSW)) Similar. > __switch_to_xtra(prev_p, next_p, tss); > > /* If the task has used fpu the last 5 timeslices, just do a full > diff --exclude=.git -urp linux-2.6.22.base/arch/x86_64/kernel/setup64.c > linux-2.6.22/arch/x86_64/kernel/setup64.c > --- linux-2.6.22.base/arch/x86_64/kernel/setup64.c 2007-05-29 > 03:17:16.000000000 -0700 > +++ linux-2.6.22/arch/x86_64/kernel/setup64.c 2007-05-29 03:24:14.000000000 > -0700 > @@ -11,6 +11,7 @@ > #include <linux/bootmem.h> > #include <linux/bitops.h> > #include <linux/module.h> > +#include <linux/perfmon.h> > #include <asm/bootsetup.h> > #include <asm/pda.h> > #include <asm/pgtable.h> > @@ -283,4 +284,6 @@ void __cpuinit cpu_init (void) > fpu_init(); > > raw_local_save_flags(kernel_eflags); > + > + pfm_init_percpu(); Just use a cpu notifier instead. No need to add everybody's per cpu init code here. > } > diff --exclude=.git -urp linux-2.6.22.base/arch/x86_64/kernel/signal.c > linux-2.6.22/arch/x86_64/kernel/signal.c > --- linux-2.6.22.base/arch/x86_64/kernel/signal.c 2007-05-29 > 03:17:16.000000000 -0700 > +++ linux-2.6.22/arch/x86_64/kernel/signal.c 2007-05-29 03:24:14.000000000 > -0700 > @@ -21,6 +21,7 @@ > #include <linux/stddef.h> > #include <linux/personality.h> > #include <linux/compiler.h> > +#include <linux/perfmon.h> > #include <asm/ucontext.h> > #include <asm/uaccess.h> > #include <asm/i387.h> > @@ -472,6 +473,10 @@ do_notify_resume(struct pt_regs *regs, v > clear_thread_flag(TIF_SINGLESTEP); > } > > + /* process perfmon asynchronous work (e.g. block thread or reset) */ > + if (thread_info_flags & _TIF_PERFMON_WORK) > + pfm_handle_work(regs); > + > /* deal with pending signal delivery */ > if (thread_info_flags & (_TIF_SIGPENDING|_TIF_RESTORE_SIGMASK)) > do_signal(regs); > diff --exclude=.git -urp linux-2.6.22.base/arch/x86_64/kernel/smpboot.c > linux-2.6.22/arch/x86_64/kernel/smpboot.c > --- linux-2.6.22.base/arch/x86_64/kernel/smpboot.c 2007-05-29 > 03:17:16.000000000 -0700 > +++ linux-2.6.22/arch/x86_64/kernel/smpboot.c 2007-05-29 03:24:14.000000000 > -0700 > @@ -49,6 +49,7 @@ > #include <linux/mc146818rtc.h> > #include <linux/smp.h> > #include <linux/kdebug.h> > +#include <linux/perfmon.h> > > #include <asm/mtrr.h> > #include <asm/pgalloc.h> > @@ -1043,6 +1044,7 @@ int __cpu_disable(void) > spin_unlock(&vector_lock); > remove_cpu_from_maps(); > fixup_irqs(cpu_online_map); > + pfm_cpu_disable(); Also cpu notifier. No compat syscalls? -Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
