linux-kernel - [PATCH v2 3/5] riscv: Add update_mmu_tlb

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Message-Id: <20240506155120.83105-4-libang.li@antgroup.com>
Date: Mon, 06 May 2024 23:51:18 +0800
From: "Bang Li" <libang.li@...group.com>
To: akpm@...ux-foundation.org,
	chenhuacai@...nel.org,
	tsbogend@...ha.franken.de,
	paul.walmsley@...ive.com,
	palmer@...belt.com,
	chris@...kel.net,
	jcmvbkbc@...il.com
Cc:  <linux-kernel@...r.kernel.org>,
   <linux-mm@...ck.org>,
   <loongarch@...ts.linux.dev>,
   <linux-riscv@...ts.infradead.org>,
   <david@...hat.com>,
   <ryan.roberts@....com>,
   <ioworker0@...il.com>,
   <libang.linux@...il.com>,
  "Bang Li" <libang.li@...group.com>
Subject: [PATCH v2 3/5] riscv: Add update_mmu_tlb_range()

Added update_mmu_tlb_range function, we can batch update tlb of an
address range.

Signed-off-by: Bang Li <libang.li@...group.com>
---
 arch/riscv/include/asm/pgtable.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h
index 661b2b4fe758..f784c6dd2c66 100644
--- a/arch/riscv/include/asm/pgtable.h
+++ b/arch/riscv/include/asm/pgtable.h
@@ -489,6 +489,10 @@ static inline void update_mmu_cache_range(struct vm_fault *vmf,
 #define __HAVE_ARCH_UPDATE_MMU_TLB
 #define update_mmu_tlb update_mmu_cache
 
+#define __HAVE_ARCH_UPDATE_MMU_TLB_RANGE
+#define update_mmu_tlb_range(vma, addr, ptep, nr) \
+	update_mmu_cache_range(NULL, vma, addr, ptep, nr)
+
 static inline void update_mmu_cache_pmd(struct vm_area_struct *vma,
 		unsigned long address, pmd_t *pmdp)
 {
-- 
2.19.1.6.gb485710b