diff options
| author | Jiaxun Yang <jiaxun.yang@flygoat.com> | 2025-01-25 18:51:33 +0800 |
|---|---|---|
| committer | Huacai Chen <chenhuacai@loongson.cn> | 2025-01-25 18:51:33 +0800 |
| commit | 98e720f77dba6bb702a57f3d8479e6445e34f38c (patch) | |
| tree | 09e72d98a3a749f0400e88f5f3949f1c4d514d61 /arch/loongarch/kernel/time.c | |
| parent | 341cf992d331a34d764bf943e4e177daff94fc92 (diff) | |
LoongArch: Derive timer max_delta from PRCFG1's timer_bits
As per arch spec, maximum timer bits is configurable and should not be
hardcoded in any way.
Probe timer bits from PRCFG1 and use that to determine the clockevent's
max_delta to be conformance.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Diffstat (limited to 'arch/loongarch/kernel/time.c')
| -rw-r--r-- | arch/loongarch/kernel/time.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/loongarch/kernel/time.c b/arch/loongarch/kernel/time.c index a07d7eff4dc5..e2d3bfeb6366 100644 --- a/arch/loongarch/kernel/time.c +++ b/arch/loongarch/kernel/time.c @@ -132,7 +132,7 @@ int constant_clockevent_init(void) #else unsigned long min_delta = 1000; #endif - unsigned long max_delta = (1UL << 48) - 1; + unsigned long max_delta = GENMASK_ULL(boot_cpu_data.timerbits, 0); struct clock_event_device *cd; static int irq = 0, timer_irq_installed = 0; |