Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0-or-later */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * OpenRISC Linux
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Linux architectural port borrowing liberally from similar works of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  * others.  All original copyrights apply as per the original source
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  * declaration.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  * OpenRISC implementation:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)  * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)  * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)  * et al.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #ifndef __ASM_OPENRISC_TLBFLUSH_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #define __ASM_OPENRISC_TLBFLUSH_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/mm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <asm/processor.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <asm/current.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/sched.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)  *  - flush_tlb() flushes the current mm struct TLBs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)  *  - flush_tlb_all() flushes all processes TLBs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)  *  - flush_tlb_mm(mm) flushes the specified mm context TLB's
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)  *  - flush_tlb_page(vma, vmaddr) flushes one page
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)  *  - flush_tlb_range(mm, start, end) flushes a range of pages
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) extern void local_flush_tlb_all(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) extern void local_flush_tlb_mm(struct mm_struct *mm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) extern void local_flush_tlb_page(struct vm_area_struct *vma,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 				 unsigned long addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) extern void local_flush_tlb_range(struct vm_area_struct *vma,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 				  unsigned long start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 				  unsigned long end);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #ifndef CONFIG_SMP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #define flush_tlb_all	local_flush_tlb_all
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define flush_tlb_mm	local_flush_tlb_mm
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #define flush_tlb_page	local_flush_tlb_page
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #define flush_tlb_range	local_flush_tlb_range
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) extern void flush_tlb_all(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) extern void flush_tlb_mm(struct mm_struct *mm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 			    unsigned long end);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) static inline void flush_tlb(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 	flush_tlb_mm(current->mm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) static inline void flush_tlb_kernel_range(unsigned long start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 					  unsigned long end)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 	flush_tlb_range(NULL, start, end);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) #endif /* __ASM_OPENRISC_TLBFLUSH_H */