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✏️ /usr/src/linux-headers-6.8.0-124/arch/powerpc/include/asm/nohash/tlbflush.h

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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_POWERPC_NOHASH_TLBFLUSH_H
#define _ASM_POWERPC_NOHASH_TLBFLUSH_H

/*
 * TLB flushing:
 *
 *  - flush_tlb_mm(mm) flushes the specified mm context TLB's
 *  - flush_tlb_page(vma, vmaddr) flushes one page
 *  - local_flush_tlb_mm(mm, full) flushes the specified mm context on
 *                           the local processor
 *  - local_flush_tlb_page(vma, vmaddr) flushes one page on the local processor
 *  - flush_tlb_range(vma, start, end) flushes a range of pages
 *  - flush_tlb_kernel_range(start, end) flushes a range of kernel pages
 *
 */

/*
 * TLB flushing for software loaded TLB chips
 *
 * TODO: (CONFIG_PPC_85xx) determine if flush_tlb_range &
 * flush_tlb_kernel_range are best implemented as tlbia vs
 * specific tlbie's
 */

struct vm_area_struct;
struct mm_struct;

#define MMU_NO_CONTEXT      	((unsigned int)-1)

extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
			    unsigned long end);

#ifdef CONFIG_PPC_8xx
static inline void local_flush_tlb_mm(struct mm_struct *mm)
{
	unsigned int pid = READ_ONCE(mm->context.id);

if (pid != MMU_NO_CONTEXT)
		asm volatile ("sync; tlbia; isync" : : : "memory");
}

static inline void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr)
{
	asm volatile ("tlbie %0; sync" : : "r" (vmaddr) : "memory");
}

static inline void local_flush_tlb_page_psize(struct mm_struct *mm,
					      unsigned long vmaddr, int psize)
{
	asm volatile ("tlbie %0; sync" : : "r" (vmaddr) : "memory");
}

static inline void flush_tlb_kernel_range(unsigned long start, unsigned long end)
{
	start &= PAGE_MASK;

if (end - start <= PAGE_SIZE)
		asm volatile ("tlbie %0; sync" : : "r" (start) : "memory");
	else
		asm volatile ("sync; tlbia; isync" : : : "memory");
}
#else
extern void flush_tlb_kernel_range(unsigned long start, unsigned long end);
extern void local_flush_tlb_mm(struct mm_struct *mm);
extern void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
void local_flush_tlb_page_psize(struct mm_struct *mm, unsigned long vmaddr, int psize);

extern void __local_flush_tlb_page(struct mm_struct *mm, unsigned long vmaddr,
				   int tsize, int ind);
#endif

#ifdef CONFIG_SMP
extern void flush_tlb_mm(struct mm_struct *mm);
extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
extern void __flush_tlb_page(struct mm_struct *mm, unsigned long vmaddr,
			     int tsize, int ind);
#else
#define flush_tlb_mm(mm)		local_flush_tlb_mm(mm)
#define flush_tlb_page(vma,addr)	local_flush_tlb_page(vma,addr)
#define __flush_tlb_page(mm,addr,p,i)	__local_flush_tlb_page(mm,addr,p,i)
#endif

#endif /* _ASM_POWERPC_NOHASH_TLBFLUSH_H */

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Nama	Tipe	Ukuran	Diubah	Perm	Aksi
📁 32	dir	—	15/06/26 13:45	0755	📂
📁 64	dir	—	15/06/26 13:45	0755	📂
📄 hugetlb-e500.h	h	1.2 KB	10/03/24 20:38	0644	✏️ ⬇
📄 kup-booke.h	h	2.3 KB	10/03/24 20:38	0644	✏️ ⬇
📄 mmu-e500.h	h	9.6 KB	26/05/26 09:55	0644	✏️ ⬇
📄 mmu.h	h	599 B	10/03/24 20:38	0644	✏️ ⬇
📄 pgalloc.h	h	1.8 KB	10/03/24 20:38	0644	✏️ ⬇
📄 pgtable.h	h	9.9 KB	10/03/24 20:38	0644	✏️ ⬇
📄 pte-e500.h	h	3.4 KB	10/03/24 20:38	0644	✏️ ⬇
📄 tlbflush.h	h	2.7 KB	10/03/24 20:38	0644	✏️ ⬇

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