/* * Copyright (C) 2012 ARM Ltd. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ #ifndef __ASM_FP_H #define __ASM_FP_H #include <asm/ptrace.h> #ifndef __ASSEMBLY__ /* * 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; }; }; /* 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 #define VFP_FPSCR_CTRL_MASK 0x07f79f00 /* * The VFP state has 32x64-bit registers and a single 32-bit * control/status register. */ #define VFP_STATE_SIZE ((32 * 8) + 4) #endif struct task_struct; extern void fpsimd_save_state(struct fpsimd_state *state); extern void fpsimd_load_state(struct fpsimd_state *state); extern void fpsimd_thread_switch(struct task_struct *next); extern void fpsimd_flush_thread(void); extern void fpsimd_preserve_current_state(void); extern void fpsimd_restore_current_state(void); extern void fpsimd_update_current_state(struct fpsimd_state *state); extern void fpsimd_flush_task_state(struct task_struct *target); /* For use by EFI runtime services calls only */ extern void __efi_fpsimd_begin(void); extern void __efi_fpsimd_end(void); #endif #endifOverall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Catalin Marinas | 113 | 67.26% | 1 | 20.00% |
| Ard Biesheuvel | 39 | 23.21% | 2 | 40.00% |
| Dave P Martin | 15 | 8.93% | 1 | 20.00% |
| Will Deacon | 1 | 0.60% | 1 | 20.00% |
| Total | 168 | 100.00% | 5 | 100.00% |