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Message-Id: <20190726194638.8068-1-atish.patra@wdc.com>
Date: Fri, 26 Jul 2019 12:46:35 -0700
From: Atish Patra <atish.patra@....com>
To: linux-kernel@...r.kernel.org
Cc: Atish Patra <atish.patra@....com>,
Alan Kao <alankao@...estech.com>,
Albert Ou <aou@...s.berkeley.edu>,
Allison Randal <allison@...utok.net>,
Anup Patel <anup.patel@....com>,
Daniel Lezcano <daniel.lezcano@...aro.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Johan Hovold <johan@...nel.org>,
linux-riscv@...ts.infradead.org,
Palmer Dabbelt <palmer@...ive.com>,
Paul Walmsley <paul.walmsley@...ive.com>,
Thomas Gleixner <tglx@...utronix.de>
Subject: [PATCH 1/4] RISC-V: Remove per cpu clocksource
There is only one clocksource in RISC-V. The boot cpu initializes
that clocksource. No need to keep a percpu data structure.
Signed-off-by: Atish Patra <atish.patra@....com>
---
drivers/clocksource/timer-riscv.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/clocksource/timer-riscv.c b/drivers/clocksource/timer-riscv.c
index 5e6038fbf115..09e031176bc6 100644
--- a/drivers/clocksource/timer-riscv.c
+++ b/drivers/clocksource/timer-riscv.c
@@ -55,7 +55,7 @@ static u64 riscv_sched_clock(void)
return get_cycles64();
}
-static DEFINE_PER_CPU(struct clocksource, riscv_clocksource) = {
+static struct clocksource riscv_clocksource = {
.name = "riscv_clocksource",
.rating = 300,
.mask = CLOCKSOURCE_MASK(64),
@@ -92,7 +92,6 @@ void riscv_timer_interrupt(void)
static int __init riscv_timer_init_dt(struct device_node *n)
{
int cpuid, hartid, error;
- struct clocksource *cs;
hartid = riscv_of_processor_hartid(n);
if (hartid < 0) {
@@ -112,8 +111,7 @@ static int __init riscv_timer_init_dt(struct device_node *n)
pr_info("%s: Registering clocksource cpuid [%d] hartid [%d]\n",
__func__, cpuid, hartid);
- cs = per_cpu_ptr(&riscv_clocksource, cpuid);
- error = clocksource_register_hz(cs, riscv_timebase);
+ error = clocksource_register_hz(&riscv_clocksource, riscv_timebase);
if (error) {
pr_err("RISCV timer register failed [%d] for cpu = [%d]\n",
error, cpuid);
--
2.21.0
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