| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | #ifndef __UM_PROCESSOR_H |
| 3 | #define __UM_PROCESSOR_H |
| 4 | |
| 5 | /* include faultinfo structure */ |
| 6 | #include <sysdep/faultinfo.h> |
| 7 | |
| 8 | #ifdef CONFIG_X86_32 |
| 9 | # include "processor_32.h" |
| 10 | #else |
| 11 | # include "processor_64.h" |
| 12 | #endif |
| 13 | |
| 14 | #define KSTK_EIP(tsk) KSTK_REG(tsk, HOST_IP) |
| 15 | #define KSTK_ESP(tsk) KSTK_REG(tsk, HOST_SP) |
| 16 | #define KSTK_EBP(tsk) KSTK_REG(tsk, HOST_BP) |
| 17 | |
| 18 | #define ARCH_IS_STACKGROW(address) \ |
| 19 | (address + 65536 + 32 * sizeof(unsigned long) >= UPT_SP(¤t->thread.regs.regs)) |
| 20 | |
| 21 | #include <asm/user.h> |
| 22 | |
| 23 | /* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */ |
| 24 | static inline void rep_nop(void) |
| 25 | { |
| 26 | __asm__ __volatile__("rep;nop": : :"memory"); |
| 27 | } |
| 28 | |
| 29 | #define cpu_relax() rep_nop() |
| 30 | |
| 31 | #define task_pt_regs(t) (&(t)->thread.regs) |
| 32 | |
| 33 | #include <asm/processor-generic.h> |
| 34 | |
| 35 | #endif |