Unverified Commit 89c12fec authored by Clément Léger's avatar Clément Léger Committed by Palmer Dabbelt
Browse files

riscv: report perf event for misaligned fault 



Add missing calls to account for misaligned fault event using
perf_sw_event().

Signed-off-by: default avatarClément Léger <cleger@rivosinc.com>
Reviewed-by: default avatarBjörn Töpel <bjorn@rivosinc.com>
Link: https://lore.kernel.org/r/20231004151405.521596-4-cleger@rivosinc.com


Signed-off-by: default avatarPalmer Dabbelt <palmer@rivosinc.com>
parent 7c832321

arch/riscv/kernel/traps_misaligned.c

+5 −0
Original line number Diff line number Diff line
@@ -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;