Release 4.14 arch/powerpc/include/asm/book3s/64/tlbflush-hash.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_POWERPC_BOOK3S_64_TLBFLUSH_HASH_H

#define _ASM_POWERPC_BOOK3S_64_TLBFLUSH_HASH_H

/*
 * TLB flushing for 64-bit hash-MMU CPUs
 */

#include <linux/percpu.h>
#include <asm/page.h>


#define PPC64_TLB_BATCH_NR 192


struct ppc64_tlb_batch {
	
int			active;
	
unsigned long		index;
	
struct mm_struct	*mm;
	
real_pte_t		pte[PPC64_TLB_BATCH_NR];
	
unsigned long		vpn[PPC64_TLB_BATCH_NR];
	
unsigned int		psize;
	
int			ssize;
};
DECLARE_PER_CPU(struct ppc64_tlb_batch, ppc64_tlb_batch);

extern void __flush_tlb_pending(struct ppc64_tlb_batch *batch);


#define __HAVE_ARCH_ENTER_LAZY_MMU_MODE



static inline void arch_enter_lazy_mmu_mode(void)
{
	struct ppc64_tlb_batch *batch;

	if (radix_enabled())
		return;
	batch = this_cpu_ptr(&ppc64_tlb_batch);
	batch->active = 1;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Aneesh Kumar K.V
34
100.00%
2
100.00%
Total
34
100.00%
2
100.00%



static inline void arch_leave_lazy_mmu_mode(void)
{
	struct ppc64_tlb_batch *batch;

	if (radix_enabled())
		return;
	batch = this_cpu_ptr(&ppc64_tlb_batch);

	if (batch->index)
		__flush_tlb_pending(batch);
	batch->active = 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Aneesh Kumar K.V
45
100.00%
2
100.00%
Total
45
100.00%
2
100.00%


#define arch_flush_lazy_mmu_mode()      do {} while (0)


extern void flush_hash_page(unsigned long vpn, real_pte_t pte, int psize,
			    int ssize, unsigned long flags);
extern void flush_hash_range(unsigned long number, int local);
extern void flush_hash_hugepage(unsigned long vsid, unsigned long addr,
				pmd_t *pmdp, unsigned int psize, int ssize,
				unsigned long flags);


static inline void hash__local_flush_tlb_mm(struct mm_struct *mm)
{
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Aneesh Kumar K.V
11
100.00%
2
100.00%
Total
11
100.00%
2
100.00%



static inline void hash__flush_tlb_mm(struct mm_struct *mm)
{
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Aneesh Kumar K.V
11
100.00%
2
100.00%
Total
11
100.00%
2
100.00%



static inline void hash__local_flush_tlb_page(struct vm_area_struct *vma,
					  unsigned long vmaddr)
{
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Aneesh Kumar K.V
15
100.00%
2
100.00%
Total
15
100.00%
2
100.00%



static inline void hash__flush_tlb_page(struct vm_area_struct *vma,
				    unsigned long vmaddr)
{
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Aneesh Kumar K.V
15
100.00%
2
100.00%
Total
15
100.00%
2
100.00%



static inline void hash__flush_tlb_range(struct vm_area_struct *vma,
				     unsigned long start, unsigned long end)
{
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Aneesh Kumar K.V
19
100.00%
2
100.00%
Total
19
100.00%
2
100.00%



static inline void hash__flush_tlb_kernel_range(unsigned long start,
					    unsigned long end)
{
}


Contributors
Person
Tokens
Prop
Commits
CommitProp
Aneesh Kumar K.V
14
100.00%
2
100.00%
Total
14
100.00%
2
100.00%

struct mmu_gather;
extern void hash__tlb_flush(struct mmu_gather *tlb);
/* Private function for use by PCI IO mapping code */
extern void __flush_hash_table_range(struct mm_struct *mm, unsigned long start,
				     unsigned long end);
extern void flush_tlb_pmd_range(struct mm_struct *mm, pmd_t *pmd,
				unsigned long addr);
#endif /*  _ASM_POWERPC_BOOK3S_64_TLBFLUSH_HASH_H */
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Aneesh Kumar K.V
359
99.72%
3
75.00%
Greg Kroah-Hartman
1
0.28%
1
25.00%
Total
360
100.00%
4
100.00%
Directory: arch/powerpc/include/asm/book3s/64

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.