[PATCH 0/7] OpenSBI PMU improvements

[Anup Patel]

On Thu, Aug 25, 2022 at 10:22 AM Anup Patel <apatel at ventanamicro.com> wrote:
>
> This series aims to improve SBI PMU implementation in following ways:
> 1) Optimize memory usage by reducing global data to track per-HART firmware
>    counters (almost 80KB saved)
> 2) Allow platform to implement custom firmware counters and quirks related
>    to hardware counters (This will be useful for T-Head)
> 3) Few other fixes for better SBI spec compliance
>
> These patches can also be found in sbi_pmu_imp_v1 branch at:
> https://github.com/avpatel/opensbi.git
>
> Anup Patel (7):
>   lib: sbi_pmu: Remove "event_idx" member from struct sbi_pmu_fw_event
>   lib: sbi_pmu: Replace sbi_pmu_ctr_read() with sbi_pmu_ctr_fw_read()
>   lib: sbi_pmu: Firmware counters are always 64 bits wide
>   lib: sbi_pmu: Simplify FW counters to reduce memory usage
>   lib: sbi_pmu: Add custom PMU device operations
>   lib: sbi: Print platform PMU device at boot-time
>   include: sbi: Reduce includes in sbi_pmu.h

Applied this series to the riscv/opensbi repo.

Andrew (Drew) had already reviewed most of the patches
before it landed on OpenSBI mailing list so I have added
his Reviewed-by.

Thanks,
Anup

>
>  include/sbi/sbi_pmu.h   |  67 ++++++++++--
>  lib/sbi/sbi_ecall_pmu.c |   3 +-
>  lib/sbi/sbi_init.c      |   4 +
>  lib/sbi/sbi_pmu.c       | 218 +++++++++++++++++++++++-----------------
>  lib/sbi/sbi_trap.c      |   1 +
>  5 files changed, 190 insertions(+), 103 deletions(-)
>
> --
> 2.34.1
>