From 0102c8c7fdfc4bd700971daff2b94470f4eafae4 Mon Sep 17 00:00:00 2001 From: Dapeng Mi Date: Thu, 17 Sep 2026 09:52:33 +0800 Subject: perf/x86/intel: Rename DMR offcore_rsp attribute to offmodule_rsp DMR introduces Offmodule Response events in place of the legacy Offcore Response events, but it still exposes the inherited offcore_rsp PMU attribute for programming the corresponding MSR data. Rename the DMR PMU attribute to offmodule_rsp so the sysfs interface matches the underlying event name and avoids user & tooling confusion. Signed-off-by: Dapeng Mi Signed-off-by: Peter Zijlstra (Intel) Signed-off-by: Ingo Molnar Link: https://patch.msgid.link/20260917015234.981153-12-dapeng1.mi@linux.intel.com --- arch/arm/mach-shmobile/timer.c | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 arch/arm/mach-shmobile/timer.c (limited to 'arch/arm/mach-shmobile/timer.c') diff --git a/arch/arm/mach-shmobile/timer.c b/arch/arm/mach-shmobile/timer.c new file mode 100644 index 000000000..2335311b5 --- /dev/null +++ b/arch/arm/mach-shmobile/timer.c @@ -0,0 +1,41 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * SH-Mobile Timer + * + * Copyright (C) 2010 Magnus Damm + * Copyright (C) 2002 - 2009 Paul Mundt + */ +#include +#include +#include +#include + +#include "common.h" + +void __init shmobile_init_delay(void) +{ + struct device_node *np; + u32 max_freq = 0; + + for_each_of_cpu_node(np) { + u32 freq; + + if (!of_property_read_u32(np, "clock-frequency", &freq)) + max_freq = max(max_freq, freq); + } + + if (!max_freq) + return; + + /* + * Calculate a worst-case loops-per-jiffy value + * based on maximum cpu core hz setting and the + * __delay() implementation in arch/arm/lib/delay.S. + * + * This will result in a longer delay than expected + * when the cpu core runs on lower frequencies. + */ + + if (!preset_lpj) + preset_lpj = max_freq / HZ; +} -- cgit v1.3.1