diff options
Diffstat (limited to 'drivers/clocksource')
| -rw-r--r-- | drivers/clocksource/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/clocksource/riscv_timer.c | 9 |
2 files changed, 10 insertions, 1 deletions
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig index c57b156f49a2..a4ae339e0101 100644 --- a/drivers/clocksource/Kconfig +++ b/drivers/clocksource/Kconfig @@ -599,7 +599,7 @@ config ATCPIT100_TIMER config RISCV_TIMER bool "Timer for the RISC-V platform" - depends on RISCV + depends on GENERIC_SCHED_CLOCK && RISCV default y select TIMER_PROBE select TIMER_OF diff --git a/drivers/clocksource/riscv_timer.c b/drivers/clocksource/riscv_timer.c index 084e97dc10ed..431892200a08 100644 --- a/drivers/clocksource/riscv_timer.c +++ b/drivers/clocksource/riscv_timer.c @@ -8,6 +8,7 @@ #include <linux/cpu.h> #include <linux/delay.h> #include <linux/irq.h> +#include <linux/sched_clock.h> #include <asm/smp.h> #include <asm/sbi.h> @@ -49,6 +50,11 @@ static unsigned long long riscv_clocksource_rdtime(struct clocksource *cs) return get_cycles64(); } +static u64 riscv_sched_clock(void) +{ + return get_cycles64(); +} + static DEFINE_PER_CPU(struct clocksource, riscv_clocksource) = { .name = "riscv_clocksource", .rating = 300, @@ -97,6 +103,9 @@ static int __init riscv_timer_init_dt(struct device_node *n) cs = per_cpu_ptr(&riscv_clocksource, cpuid); clocksource_register_hz(cs, riscv_timebase); + sched_clock_register(riscv_sched_clock, + BITS_PER_LONG, riscv_timebase); + error = cpuhp_setup_state(CPUHP_AP_RISCV_TIMER_STARTING, "clockevents/riscv/timer:starting", riscv_timer_starting_cpu, riscv_timer_dying_cpu); |