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/x86/lib/cpu.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 arch/x86/lib/cpu.c (limited to 'arch/x86/lib/cpu.c') diff --git a/arch/x86/lib/cpu.c b/arch/x86/lib/cpu.c new file mode 100644 index 000000000..d39fba72f --- /dev/null +++ b/arch/x86/lib/cpu.c @@ -0,0 +1,51 @@ +// SPDX-License-Identifier: GPL-2.0-only +#include +#include + +#include +#include + +static unsigned int __x86_family(unsigned int base_fam, unsigned int ext_fam) +{ + if (base_fam == 0xf) + base_fam += ext_fam; + + return base_fam; +} + +static unsigned int __x86_model(unsigned int family, unsigned int base_model, + unsigned int ext_model) +{ + if (family >= 0x6) + base_model |= ext_model << 4; + + return base_model; +} + +unsigned int x86_family(unsigned int sig) +{ + return __x86_family((sig >> 8) & 0xf, (sig >> 20) & 0xff); +} +EXPORT_SYMBOL_GPL(x86_family); + +unsigned int x86_model(unsigned int sig) +{ + return __x86_model(x86_family(sig), (sig >> 4) & 0xf, (sig >> 16) & 0xf); +} +EXPORT_SYMBOL_GPL(x86_model); + +unsigned int x86_stepping(unsigned int sig) +{ + return sig & 0xf; +} +EXPORT_SYMBOL_GPL(x86_stepping); + +unsigned int cpuid_family(const struct leaf_0x1_0 *l) +{ + return __x86_family(l->base_family_id, l->ext_family); +} + +unsigned int cpuid_model(const struct leaf_0x1_0 *l) +{ + return __x86_model(cpuid_family(l), l->base_model, l->ext_model); +} -- cgit v1.3.1