Re: [PATCH v2 0/3] Miscellaneous fixes for PMU driver

From: Palmer Dabbelt
Date: Thu Jun 02 2022 - 01:58:27 EST


On Thu, 12 May 2022 18:55:19 PDT (-0700), Atish Patra wrote:
This series fixes issues PMU driver code.
PATCH 1 & 3 are fixes for rv32 while PATCH 2 fixes a redundant
user page update issue during counter start.

Changes from v1->v2:
1. Add proper compile time rv32 checks.

Atish Patra (3):
RISC-V: Fix counter restart during overflow for RV32
RISC-V: Update user page mapping only once during start
RISC-V: Fix SBI PMU calls for RV32

drivers/perf/riscv_pmu.c | 1 -
drivers/perf/riscv_pmu_sbi.c | 16 ++++++++++++++++
2 files changed, 16 insertions(+), 1 deletion(-)

+Will and Mark.

Will recently took some stuff for drivers/perf/riscv_* into his for-next/perf tree (which I didn't even know about until then, oops), but the previous stuff I took through the RISC-V tree. Always happy to get stuff out of my tree, just LMK what you want me to do here.

I did some minor cleanups to the commit text and put them over at palmer/riscv-pmu_fixes, it's all passing my tests. These generally look fine to me and they're all stable backports, so no big rush on the merge window (which I still have stuff for).