| Message ID | 20231004151405.521596-4-cleger@rivosinc.com (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | 89c12fecdc4d46c1f08a81dab5d305304cc626eb |
| Headers | show |
| Series | Add support to handle misaligned accesses in S-mode | expand |
Clément Léger <cleger@rivosinc.com> writes: > Add missing calls to account for misaligned fault event using > perf_sw_event(). > > Signed-off-by: Clément Léger <cleger@rivosinc.com> Reviewed-by: Björn Töpel <bjorn@rivosinc.com>
diff --git a/arch/riscv/kernel/traps_misaligned.c b/arch/riscv/kernel/traps_misaligned.c index 9daed7d756ae..804f6c5e0e44 100644 --- a/arch/riscv/kernel/traps_misaligned.c +++ b/arch/riscv/kernel/traps_misaligned.c @@ -6,6 +6,7 @@ #include <linux/init.h> #include <linux/mm.h> #include <linux/module.h> +#include <linux/perf_event.h> #include <linux/irq.h> #include <linux/stringify.h> @@ -294,6 +295,8 @@ int handle_misaligned_load(struct pt_regs *regs) unsigned long addr = regs->badaddr; int i, fp = 0, shift = 0, len = 0; + perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS, 1, regs, addr); + if (get_insn(regs, epc, &insn)) return -1; @@ -382,6 +385,8 @@ int handle_misaligned_store(struct pt_regs *regs) unsigned long addr = regs->badaddr; int i, len = 0; + perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS, 1, regs, addr); + if (get_insn(regs, epc, &insn)) return -1;
Add missing calls to account for misaligned fault event using perf_sw_event(). Signed-off-by: Clément Léger <cleger@rivosinc.com> --- arch/riscv/kernel/traps_misaligned.c | 5 +++++ 1 file changed, 5 insertions(+)