diff options
Diffstat (limited to 'arch/arm64/include/asm/fpsimd.h')
| -rw-r--r-- | arch/arm64/include/asm/fpsimd.h | 34 |
1 files changed, 6 insertions, 28 deletions
diff --git a/arch/arm64/include/asm/fpsimd.h b/arch/arm64/include/asm/fpsimd.h index 8857a0f0d0f7..aa7162ae93e3 100644 --- a/arch/arm64/include/asm/fpsimd.h +++ b/arch/arm64/include/asm/fpsimd.h @@ -22,33 +22,9 @@ #ifndef __ASSEMBLY__ #include <linux/cache.h> +#include <linux/init.h> #include <linux/stddef.h> -/* - * FP/SIMD storage area has: - * - FPSR and FPCR - * - 32 128-bit data registers - * - * Note that user_fpsimd forms a prefix of this structure, which is - * relied upon in the ptrace FP/SIMD accessors. - */ -struct fpsimd_state { - union { - struct user_fpsimd_state user_fpsimd; - struct { - __uint128_t vregs[32]; - u32 fpsr; - u32 fpcr; - /* - * For ptrace compatibility, pad to next 128-bit - * boundary here if extending this struct. - */ - }; - }; - /* the id of the last cpu to have restored this state */ - unsigned int cpu; -}; - #if defined(__KERNEL__) && defined(CONFIG_COMPAT) /* Masks for extracting the FPSR and FPCR from the FPSCR */ #define VFP_FPSCR_STAT_MASK 0xf800009f @@ -62,8 +38,8 @@ struct fpsimd_state { struct task_struct; -extern void fpsimd_save_state(struct fpsimd_state *state); -extern void fpsimd_load_state(struct fpsimd_state *state); +extern void fpsimd_save_state(struct user_fpsimd_state *state); +extern void fpsimd_load_state(struct user_fpsimd_state *state); extern void fpsimd_thread_switch(struct task_struct *next); extern void fpsimd_flush_thread(void); @@ -83,7 +59,9 @@ extern void sve_save_state(void *state, u32 *pfpsr); extern void sve_load_state(void const *state, u32 const *pfpsr, unsigned long vq_minus_1); extern unsigned int sve_get_vl(void); -extern int sve_kernel_enable(void *); + +struct arm64_cpu_capabilities; +extern void sve_kernel_enable(const struct arm64_cpu_capabilities *__unused); extern int __ro_after_init sve_max_vl; |