diff options
Diffstat (limited to 'arch/arm64/include/asm/processor.h')
| -rw-r--r-- | arch/arm64/include/asm/processor.h | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h index 1bf1a3b16e88..e30c4c8e3a7a 100644 --- a/arch/arm64/include/asm/processor.h +++ b/arch/arm64/include/asm/processor.h @@ -23,7 +23,9 @@ #define MTE_CTRL_TCF_ASYNC (1UL << 17) #define MTE_CTRL_TCF_ASYMM (1UL << 18) -#ifndef __ASSEMBLY__ +#define MTE_CTRL_STORE_ONLY (1UL << 19) + +#ifndef __ASSEMBLER__ #include <linux/build_bug.h> #include <linux/cache.h> @@ -170,7 +172,12 @@ struct thread_struct { unsigned long fault_code; /* ESR_EL1 value */ struct debug_info debug; /* debugging */ - struct user_fpsimd_state kernel_fpsimd_state; + /* + * Set [cleared] by kernel_neon_begin() [kernel_neon_end()] to the + * address of a caller provided buffer that will be used to preserve a + * task's kernel mode FPSIMD state while it is scheduled out. + */ + struct user_fpsimd_state *kernel_fpsimd_state; unsigned int kernel_fpsimd_cpu; #ifdef CONFIG_ARM64_PTR_AUTH struct ptrauth_keys_user keys_user; @@ -435,5 +442,5 @@ int set_tsc_mode(unsigned int val); #define GET_TSC_CTL(adr) get_tsc_mode((adr)) #define SET_TSC_CTL(val) set_tsc_mode((val)) -#endif /* __ASSEMBLY__ */ +#endif /* __ASSEMBLER__ */ #endif /* __ASM_PROCESSOR_H */ |