[PATCH v3 8/8] powerpc: Remove get_tb_or_rtc()

From: Christophe Leroy
Date: Tue Sep 29 2020 - 02:48:54 EST


601 is gone, get_tb_or_rtc() is equivalent to get_tb().

Replace the former by the later.

Signed-off-by: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
---
arch/powerpc/include/asm/time.h | 5 -----
arch/powerpc/kernel/irq.c | 2 +-
arch/powerpc/kernel/time.c | 6 +++---
3 files changed, 4 insertions(+), 9 deletions(-)

diff --git a/arch/powerpc/include/asm/time.h b/arch/powerpc/include/asm/time.h
index caf68a4bc19e..410ed72eef1c 100644
--- a/arch/powerpc/include/asm/time.h
+++ b/arch/powerpc/include/asm/time.h
@@ -85,11 +85,6 @@ static inline u64 get_tb(void)
}
#endif /* !CONFIG_PPC64 */

-static inline u64 get_tb_or_rtc(void)
-{
- return get_tb();
-}
-
static inline void set_tb(unsigned int upper, unsigned int lower)
{
mtspr(SPRN_TBWL, 0);
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index bf21ebd36190..2d188f81ebdb 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -104,7 +104,7 @@ static inline notrace unsigned long get_irq_happened(void)

static inline notrace int decrementer_check_overflow(void)
{
- u64 now = get_tb_or_rtc();
+ u64 now = get_tb();
u64 *next_tb = this_cpu_ptr(&decrementers_next_tb);

return now >= *next_tb;
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 13c820c15d37..760ea359a7f7 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -595,7 +595,7 @@ void timer_interrupt(struct pt_regs *regs)
irq_work_run();
}

- now = get_tb_or_rtc();
+ now = get_tb();
if (now >= *next_tb) {
*next_tb = ~(u64)0;
if (evt->event_handler)
@@ -937,7 +937,7 @@ static void __init clocksource_init(void)
static int decrementer_set_next_event(unsigned long evt,
struct clock_event_device *dev)
{
- __this_cpu_write(decrementers_next_tb, get_tb_or_rtc() + evt);
+ __this_cpu_write(decrementers_next_tb, get_tb() + evt);
set_dec(evt);

/* We may have raced with new irq work */
@@ -1071,7 +1071,7 @@ void __init time_init(void)
tb_to_ns_scale = scale;
tb_to_ns_shift = shift;
/* Save the current timebase to pretty up CONFIG_PRINTK_TIME */
- boot_tb = get_tb_or_rtc();
+ boot_tb = get_tb();

/* If platform provided a timezone (pmac), we correct the time */
if (timezone_offset) {
--
2.25.0