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| author | Atish Patra <atish.patra@wdc.com> | 2021-07-10 19:18:11 +0300 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2021-07-11 07:53:18 +0300 |
| commit | 13d40f21d588e17a31624ed415f114987b6bd3d0 (patch) | |
| tree | e54dd0463d90fbbc28b90e56b45a01539a981115 /lib/sbi/sbi_init.c | |
| parent | e7cc7a3ab2770b9f40569a84c417afdad59531bc (diff) | |
| download | opensbi-13d40f21d588e17a31624ed415f114987b6bd3d0.tar.xz | |
lib: sbi: Add PMU support
RISC-V SBI v0.3 specification defined a PMU extension to configure/start/stop
the hardware/firmware pmu events.
Implement PMU support in OpenSBI library. The implementation is agnostic of
event to counter mapping & mhpmevent value configuration. That means, it
expects platform hooks will be used to set up the mapping and provide
the mhpmevent value at runtime.
Reviewed-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Diffstat (limited to 'lib/sbi/sbi_init.c')
| -rw-r--r-- | lib/sbi/sbi_init.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/sbi/sbi_init.c b/lib/sbi/sbi_init.c index 3074777..6ef8742 100644 --- a/lib/sbi/sbi_init.c +++ b/lib/sbi/sbi_init.c @@ -19,6 +19,7 @@ #include <sbi/sbi_hsm.h> #include <sbi/sbi_ipi.h> #include <sbi/sbi_platform.h> +#include <sbi/sbi_pmu.h> #include <sbi/sbi_system.h> #include <sbi/sbi_string.h> #include <sbi/sbi_timer.h> @@ -251,6 +252,10 @@ static void __noreturn init_coldboot(struct sbi_scratch *scratch, u32 hartid) if (rc) sbi_hart_hang(); + rc = sbi_pmu_init(scratch, TRUE); + if (rc) + sbi_hart_hang(); + sbi_boot_print_banner(scratch); rc = sbi_platform_irqchip_init(plat, TRUE); @@ -352,6 +357,10 @@ static void init_warm_startup(struct sbi_scratch *scratch, u32 hartid) if (rc) sbi_hart_hang(); + rc = sbi_pmu_init(scratch, FALSE); + if (rc) + sbi_hart_hang(); + rc = sbi_platform_irqchip_init(plat, FALSE); if (rc) sbi_hart_hang(); @@ -515,6 +524,8 @@ void __noreturn sbi_exit(struct sbi_scratch *scratch) sbi_platform_early_exit(plat); + sbi_pmu_exit(scratch); + sbi_timer_exit(scratch); sbi_ipi_exit(scratch); |