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/boot/bitops.h | 44 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 arch/x86/boot/bitops.h (limited to 'arch/x86/boot/bitops.h') diff --git a/arch/x86/boot/bitops.h b/arch/x86/boot/bitops.h new file mode 100644 index 000000000..79e159715 --- /dev/null +++ b/arch/x86/boot/bitops.h @@ -0,0 +1,44 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* -*- linux-c -*- ------------------------------------------------------- * + * + * Copyright (C) 1991, 1992 Linus Torvalds + * Copyright 2007 rPath, Inc. - All Rights Reserved + * + * ----------------------------------------------------------------------- */ + +/* + * Very simple bitops for the boot code. + */ + +#ifndef BOOT_BITOPS_H +#define BOOT_BITOPS_H +#define _LINUX_BITOPS_H /* Inhibit inclusion of */ + +#include +#include + +static inline bool constant_test_bit(int nr, const void *addr) +{ + const u32 *p = addr; + return ((1UL << (nr & 31)) & (p[nr >> 5])) != 0; +} +static inline bool variable_test_bit(int nr, const void *addr) +{ + bool v; + const u32 *p = addr; + + asm("btl %2,%1" : "=@ccc" (v) : "m" (*p), "Ir" (nr)); + return v; +} + +#define test_bit(nr,addr) \ +(__builtin_constant_p(nr) ? \ + constant_test_bit((nr),(addr)) : \ + variable_test_bit((nr),(addr))) + +static inline void set_bit(int nr, void *addr) +{ + asm("btsl %1,%0" : "+m" (*(u32 *)addr) : "Ir" (nr)); +} + +#endif /* BOOT_BITOPS_H */ -- cgit v1.3.1