platform: generic: Introduce pmu_init() platform override

Add pmu_init() platform override, which will be used to register
PMU device and populate event mappings.

Signed-off-by: Yu Chien Peter Lin <peterlin@andestech.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Anup Patel <anup@brainfault.org>

diff --git a/platform/generic/include/platform_override.h b/platform/generic/include/platform_override.h
index bf4b11258773da6688ceeaf1b617b0b1cf029bbc..f2a4327ec2714eb5569acda3277ccc7572e5af12 100644 (file)
--- a/platform/generic/include/platform_override.h
+++ b/platform/generic/include/platform_override.h
@@ -27,6 +27,7 @@ struct platform_override {
        int (*fdt_fixup)(void *fdt, const struct fdt_match *match);
        int (*extensions_init)(const struct fdt_match *match,
                               struct sbi_hart_features *hfeatures);
+       int (*pmu_init)(const struct fdt_match *match);
        void (*fw_init)(void *fdt, const struct fdt_match *match);
        int (*vendor_ext_provider)(long funcid,
                                   const struct sbi_trap_regs *regs,

diff --git a/platform/generic/platform.c b/platform/generic/platform.c
index fa400b9e68ed9a8089c1211753fe231e185dbc21..f17e94ed35c2c1864f8b316f94118a650f1f9dd0 100644 (file)
--- a/platform/generic/platform.c
+++ b/platform/generic/platform.c
@@ -267,6 +267,12 @@ static int generic_pmu_init(void)
 {
        int rc;
 
+       if (generic_plat && generic_plat->pmu_init) {
+               rc = generic_plat->pmu_init(generic_plat_match);
+               if (rc)
+                       return rc;
+       }
+
        rc = fdt_pmu_setup(fdt_get_address());
        if (rc && rc != SBI_ENOENT)
                return rc;