diff options
| author | Ravi Bangoria <ravi.bangoria@linux.ibm.com> | 2020-05-14 16:47:31 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-05-19 00:11:04 +1000 |
| commit | 4a8a9379f2af4c9928529b3959bc2d8f7023c6bc (patch) | |
| tree | 4d7d53dff1e83ad503e760c54f99a797c9bce236 /arch/powerpc/kernel/hw_breakpoint.c | |
| parent | a18b834625d345bfa89c4e2754dd6cbb0133c4d7 (diff) | |
| download | linux-4a8a9379f2af4c9928529b3959bc2d8f7023c6bc.tar.gz linux-4a8a9379f2af4c9928529b3959bc2d8f7023c6bc.tar.bz2 linux-4a8a9379f2af4c9928529b3959bc2d8f7023c6bc.zip | |
powerpc/watchpoint: Provide DAWR number to __set_breakpoint
Introduce new parameter 'nr' to __set_breakpoint() which indicates
which DAWR should be programed. Also convert current_brk variable
to an array.
Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: Michael Neuling <mikey@neuling.org>
Link: https://lore.kernel.org/r/20200514111741.97993-7-ravi.bangoria@linux.ibm.com
Diffstat (limited to 'arch/powerpc/kernel/hw_breakpoint.c')
| -rw-r--r-- | arch/powerpc/kernel/hw_breakpoint.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/powerpc/kernel/hw_breakpoint.c b/arch/powerpc/kernel/hw_breakpoint.c index 01f07d91df70..f5472402c06d 100644 --- a/arch/powerpc/kernel/hw_breakpoint.c +++ b/arch/powerpc/kernel/hw_breakpoint.c @@ -64,7 +64,7 @@ int arch_install_hw_breakpoint(struct perf_event *bp) * If so, DABR will be populated in single_step_dabr_instruction(). */ if (current->thread.last_hit_ubp != bp) - __set_breakpoint(info); + __set_breakpoint(0, info); return 0; } @@ -222,7 +222,7 @@ void thread_change_pc(struct task_struct *tsk, struct pt_regs *regs) info = counter_arch_bp(tsk->thread.last_hit_ubp); regs->msr &= ~MSR_SE; - __set_breakpoint(info); + __set_breakpoint(0, info); tsk->thread.last_hit_ubp = NULL; } @@ -347,7 +347,7 @@ int hw_breakpoint_handler(struct die_args *args) if (!(info->type & HW_BRK_TYPE_EXTRANEOUS_IRQ)) perf_bp_event(bp, regs); - __set_breakpoint(info); + __set_breakpoint(0, info); out: rcu_read_unlock(); return rc; @@ -380,7 +380,7 @@ static int single_step_dabr_instruction(struct die_args *args) if (!(info->type & HW_BRK_TYPE_EXTRANEOUS_IRQ)) perf_bp_event(bp, regs); - __set_breakpoint(info); + __set_breakpoint(0, info); current->thread.last_hit_ubp = NULL; /* |