[PATCH v2 28/44] cpuidle,mwait: Make noinstr clean
From: Peter Zijlstra <peterz@infradead.org>
Date: 2022-09-19 10:20:44
Also in:
linux-acpi, linux-alpha, linux-arch, linux-arm-msm, linux-clk, linux-m68k, linux-mips, linux-omap, linux-perf-users, linux-pm, linux-riscv, linux-s390, linux-sh, linux-tegra, linux-um, lkml, loongarch, sparclinux, virtualization
vmlinux.o: warning: objtool: intel_idle_s2idle+0x6e: call to __monitor.constprop.0() leaves .noinstr.text section vmlinux.o: warning: objtool: intel_idle_irq+0x8c: call to __monitor.constprop.0() leaves .noinstr.text section vmlinux.o: warning: objtool: intel_idle+0x73: call to __monitor.constprop.0() leaves .noinstr.text section vmlinux.o: warning: objtool: mwait_idle+0x88: call to clflush() leaves .noinstr.text section Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> --- arch/x86/include/asm/mwait.h | 12 ++++++------ arch/x86/include/asm/special_insns.h | 2 +- 2 files changed, 7 insertions(+), 7 deletions(-)
--- a/arch/x86/include/asm/mwait.h
+++ b/arch/x86/include/asm/mwait.h@@ -25,7 +25,7 @@ #define TPAUSE_C01_STATE 1 #define TPAUSE_C02_STATE 0 -static inline void __monitor(const void *eax, unsigned long ecx, +static __always_inline void __monitor(const void *eax, unsigned long ecx, unsigned long edx) { /* "monitor %eax, %ecx, %edx;" */
@@ -33,7 +33,7 @@ static inline void __monitor(const void :: "a" (eax), "c" (ecx), "d"(edx)); } -static inline void __monitorx(const void *eax, unsigned long ecx, +static __always_inline void __monitorx(const void *eax, unsigned long ecx, unsigned long edx) { /* "monitorx %eax, %ecx, %edx;" */
@@ -41,7 +41,7 @@ static inline void __monitorx(const void :: "a" (eax), "c" (ecx), "d"(edx)); } -static inline void __mwait(unsigned long eax, unsigned long ecx) +static __always_inline void __mwait(unsigned long eax, unsigned long ecx) { mds_idle_clear_cpu_buffers();
@@ -76,8 +76,8 @@ static inline void __mwait(unsigned long * EAX (logical) address to monitor * ECX #GP if not zero */ -static inline void __mwaitx(unsigned long eax, unsigned long ebx, - unsigned long ecx) +static __always_inline void __mwaitx(unsigned long eax, unsigned long ebx, + unsigned long ecx) { /* No MDS buffer clear as this is AMD/HYGON only */
@@ -86,7 +86,7 @@ static inline void __mwaitx(unsigned lon :: "a" (eax), "b" (ebx), "c" (ecx)); } -static inline void __sti_mwait(unsigned long eax, unsigned long ecx) +static __always_inline void __sti_mwait(unsigned long eax, unsigned long ecx) { mds_idle_clear_cpu_buffers(); /* "mwait %eax, %ecx;" */ --- a/arch/x86/include/asm/special_insns.h +++ b/arch/x86/include/asm/special_insns.h
@@ -196,7 +196,7 @@ static inline void load_gs_index(unsigne #endif /* CONFIG_PARAVIRT_XXL */ -static inline void clflush(volatile void *__p) +static __always_inline void clflush(volatile void *__p) { asm volatile("clflush %0" : "+m" (*(volatile char __force *)__p)); }