[PATCH v1 12/20] powerpc/32s: Inline flush_tlb_range() and flush_tlb_kernel_range()

From: Christophe Leroy
Date: Thu Oct 22 2020 - 02:30:28 EST


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@xxxxxxxxxx>
---
arch/powerpc/include/asm/book3s/32/tlbflush.h | 15 ++++++++--
arch/powerpc/mm/book3s32/tlb.c | 30 +++++--------------
2 files changed, 19 insertions(+), 26 deletions(-)

diff --git a/arch/powerpc/include/asm/book3s/32/tlbflush.h b/arch/powerpc/include/asm/book3s/32/tlbflush.h
index 542765944531..2f480d184526 100644
--- a/arch/powerpc/include/asm/book3s/32/tlbflush.h
+++ b/arch/powerpc/include/asm/book3s/32/tlbflush.h
@@ -8,9 +8,7 @@
*/
void hash__flush_tlb_mm(struct mm_struct *mm);
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,
- unsigned long end);
-extern void flush_tlb_kernel_range(unsigned long start, unsigned long end);
+void flush_range(struct mm_struct *mm, unsigned long start, unsigned long end);

#ifdef CONFIG_SMP
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);
}

+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,
unsigned long vmaddr)
{
diff --git a/arch/powerpc/mm/book3s32/tlb.c b/arch/powerpc/mm/book3s32/tlb.c
index 65389bfe2eb8..f9b8e1ce4371 100644
--- a/arch/powerpc/mm/book3s32/tlb.c
+++ b/arch/powerpc/mm/book3s32/tlb.c
@@ -71,8 +71,12 @@ void tlb_flush(struct mmu_gather *tlb)
* -- 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;
unsigned long pmd_end;
@@ -105,15 +109,7 @@ static void flush_range(struct mm_struct *mm, unsigned long start,
++pmd;
}
}
-
-/*
- * 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);
+EXPORT_SYMBOL(flush_range);

/*
* 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);

-/*
- * 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)
{
}
--
2.25.0