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authorFrederic Weisbecker <frederic@kernel.org>2018-06-26 04:58:49 +0200
committerIngo Molnar <mingo@kernel.org>2018-06-26 09:07:54 +0200
commit8e983ff9ac02a8fb454ed09c2462bdb3617006a8 (patch)
tree6bbd44adebc46541388398b2fd6b69943d18331b /arch/xtensa
parent9a4903dde2c8633c5fcf887b98c4e047a6154a54 (diff)
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perf/hw_breakpoint: Pass arch breakpoint struct to arch_check_bp_in_kernelspace()
We can't pass the breakpoint directly on arch_check_bp_in_kernelspace() anymore because its architecture internal datas (struct arch_hw_breakpoint) are not yet filled by the time we call the function, and most implementation need this backend to be up to date. So arrange the function to take the probing struct instead. Signed-off-by: Frederic Weisbecker <frederic@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chris Zankel <chris@zankel.net> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Joel Fernandes <joel.opensrc@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rich Felker <dalias@libc.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will.deacon@arm.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Link: http://lkml.kernel.org/r/1529981939-8231-3-git-send-email-frederic@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/xtensa')
-rw-r--r--arch/xtensa/include/asm/hw_breakpoint.h2
-rw-r--r--arch/xtensa/kernel/hw_breakpoint.c7
2 files changed, 4 insertions, 5 deletions
diff --git a/arch/xtensa/include/asm/hw_breakpoint.h b/arch/xtensa/include/asm/hw_breakpoint.h
index dbe3053b284a..2525bf6816a6 100644
--- a/arch/xtensa/include/asm/hw_breakpoint.h
+++ b/arch/xtensa/include/asm/hw_breakpoint.h
@@ -35,7 +35,7 @@ struct pt_regs;
struct task_struct;
int hw_breakpoint_slots(int type);
-int arch_check_bp_in_kernelspace(struct perf_event *bp);
+int arch_check_bp_in_kernelspace(struct arch_hw_breakpoint *hw);
int arch_validate_hwbkpt_settings(struct perf_event *bp);
int hw_breakpoint_exceptions_notify(struct notifier_block *unused,
unsigned long val, void *data);
diff --git a/arch/xtensa/kernel/hw_breakpoint.c b/arch/xtensa/kernel/hw_breakpoint.c
index b35656ab7dbd..6e34c3848885 100644
--- a/arch/xtensa/kernel/hw_breakpoint.c
+++ b/arch/xtensa/kernel/hw_breakpoint.c
@@ -33,14 +33,13 @@ int hw_breakpoint_slots(int type)
}
}
-int arch_check_bp_in_kernelspace(struct perf_event *bp)
+int arch_check_bp_in_kernelspace(struct arch_hw_breakpoint *hw)
{
unsigned int len;
unsigned long va;
- struct arch_hw_breakpoint *info = counter_arch_bp(bp);
- va = info->address;
- len = bp->attr.bp_len;
+ va = hw->address;
+ len = hw->len;
return (va >= TASK_SIZE) && ((va + len - 1) >= TASK_SIZE);
}