threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
77 lines
2.0 KiB
C
77 lines
2.0 KiB
C
/*
|
|
* 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
|
|
|
|
#endif
|