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powerpc/32s: Inline flush_tlb_range() and flush_tlb_kernel_range() 

flush_tlb_range() and flush_tlb_kernel_range() are trivial calls to
flush_range().

Make flush_range() global and inline flush_tlb_range()
and flush_tlb_kernel_range().

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/c7029a78e78709ad9272d7a44260e06b649169b2.1603348103.git.christophe.leroy@csgroup.eu
This commit is contained in:
Christophe Leroy 2020-10-22 06:29:37 +00:00 committed by Michael Ellerman
parent fd1b4b7f51
commit 1e83396f29
2 changed files with 19 additions and 26 deletions
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15
arch/powerpc/include/asm/book3s/32/tlbflush.h
View File

@ -8,9 +8,7 @@
*/ */
void hash__flush_tlb_mm(struct mm_struct *mm); void hash__flush_tlb_mm(struct mm_struct *mm);
void hash__flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr); void hash__flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, void flush_range(struct mm_struct *mm, unsigned long start, unsigned long end);
unsigned long end);
extern void flush_tlb_kernel_range(unsigned long start, unsigned long end);
#ifdef CONFIG_SMP #ifdef CONFIG_SMP
void _tlbie(unsigned long address); void _tlbie(unsigned long address);
@ -38,6 +36,17 @@ static inline void flush_tlb_page(struct vm_area_struct *vma, unsigned long vmad
_tlbie(vmaddr); _tlbie(vmaddr);
} }
static inline void
flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end)
{
flush_range(vma->vm_mm, start, end);
}
static inline void flush_tlb_kernel_range(unsigned long start, unsigned long end)
{
flush_range(&init_mm, start, end);
}
static inline void local_flush_tlb_page(struct vm_area_struct *vma, static inline void local_flush_tlb_page(struct vm_area_struct *vma,
unsigned long vmaddr) unsigned long vmaddr)
{ {

30
arch/powerpc/mm/book3s32/tlb.c
View File

@ -71,8 +71,12 @@ void tlb_flush(struct mmu_gather *tlb)
* -- Cort * -- Cort
*/ */
static void flush_range(struct mm_struct *mm, unsigned long start, /*
unsigned long end) * For each address in the range, find the pte for the address
* and check _PAGE_HASHPTE bit; if it is set, find and destroy
* the corresponding HPTE.
*/
void flush_range(struct mm_struct *mm, unsigned long start, unsigned long end)
{ {
pmd_t *pmd; pmd_t *pmd;
unsigned long pmd_end; unsigned long pmd_end;
@ -105,15 +109,7 @@ static void flush_range(struct mm_struct *mm, unsigned long start,
++pmd; ++pmd;
} }
} }
EXPORT_SYMBOL(flush_range);
/*
* Flush kernel TLB entries in the given range
*/
void flush_tlb_kernel_range(unsigned long start, unsigned long end)
{
flush_range(&init_mm, start, end);
}
EXPORT_SYMBOL(flush_tlb_kernel_range);
/* /*
* Flush all the (user) entries for the address space described by mm. * Flush all the (user) entries for the address space described by mm.
@ -145,18 +141,6 @@ void hash__flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr)
} }
EXPORT_SYMBOL(hash__flush_tlb_page); EXPORT_SYMBOL(hash__flush_tlb_page);
/*
* For each address in the range, find the pte for the address
* and check _PAGE_HASHPTE bit; if it is set, find and destroy
* the corresponding HPTE.
*/
void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
unsigned long end)
{
flush_range(vma->vm_mm, start, end);
}
EXPORT_SYMBOL(flush_tlb_range);
void __init early_init_mmu(void) void __init early_init_mmu(void)
{ {
} }