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Subject[PATCH] clocksource/drivers/riscv: Fix clocksource mask
Date
For all riscv architectures (RV32, RV64 and RV128), the clocksource
is a 64 bit incrementing counter.

Fix the clock source mask accordingly.

Tested on both 64bit and 32 bit virt machine in QEMU.

Signed-off-by: Atish Patra <atish.patra@wdc.com>
---
drivers/clocksource/timer-riscv.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/clocksource/timer-riscv.c b/drivers/clocksource/timer-riscv.c
index e8163693..5e6038fb 100644
--- a/drivers/clocksource/timer-riscv.c
+++ b/drivers/clocksource/timer-riscv.c
@@ -58,7 +58,7 @@ static u64 riscv_sched_clock(void)
static DEFINE_PER_CPU(struct clocksource, riscv_clocksource) = {
.name = "riscv_clocksource",
.rating = 300,
- .mask = CLOCKSOURCE_MASK(BITS_PER_LONG),
+ .mask = CLOCKSOURCE_MASK(64),
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
.read = riscv_clocksource_rdtime,
};
@@ -120,8 +120,7 @@ static int __init riscv_timer_init_dt(struct device_node *n)
return error;
}

- sched_clock_register(riscv_sched_clock,
- BITS_PER_LONG, riscv_timebase);
+ sched_clock_register(riscv_sched_clock, 64, riscv_timebase);

error = cpuhp_setup_state(CPUHP_AP_RISCV_TIMER_STARTING,
"clockevents/riscv/timer:starting",
--
2.21.0
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