From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3tRxL54yq6zDvhR for ; Mon, 28 Nov 2016 17:17:33 +1100 (AEDT) Received: from pps.filterd (m0098393.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.17/8.16.0.17) with SMTP id uAS6Dhur101697 for ; Mon, 28 Nov 2016 01:17:31 -0500 Received: from e33.co.us.ibm.com (e33.co.us.ibm.com [32.97.110.151]) by mx0a-001b2d01.pphosted.com with ESMTP id 26yx0bgr1j-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Mon, 28 Nov 2016 01:17:31 -0500 Received: from localhost by e33.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Sun, 27 Nov 2016 23:17:30 -0700 From: "Aneesh Kumar K.V" To: benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au Cc: linuxppc-dev@lists.ozlabs.org, "Aneesh Kumar K.V" Subject: [PATCH v7 6/7] powerpc/mm: update radix__pte_update to not do full mm tlb flush Date: Mon, 28 Nov 2016 11:47:03 +0530 In-Reply-To: <20161128061704.4914-1-aneesh.kumar@linux.vnet.ibm.com> References: <20161128061704.4914-1-aneesh.kumar@linux.vnet.ibm.com> Message-Id: <20161128061704.4914-7-aneesh.kumar@linux.vnet.ibm.com> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , When we are updating a pte, we just need to flush the tlb mapping that pte. Right now we do a full mm flush because we don't track page size. Now that we have page size details in pte use that to do the optimized flush Signed-off-by: Aneesh Kumar K.V --- arch/powerpc/include/asm/book3s/64/radix.h | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) diff --git a/arch/powerpc/include/asm/book3s/64/radix.h b/arch/powerpc/include/asm/book3s/64/radix.h index 7f31de4fb454..4e88178cf03b 100644 --- a/arch/powerpc/include/asm/book3s/64/radix.h +++ b/arch/powerpc/include/asm/book3s/64/radix.h @@ -145,13 +145,7 @@ static inline unsigned long radix__pte_update(struct mm_struct *mm, * new value of pte */ new_pte = (old_pte | set) & ~clr; - - /* - * For now let's do heavy pid flush - * radix__flush_tlb_page_psize(mm, addr, mmu_virtual_psize); - */ - radix__flush_tlb_mm(mm); - + radix__flush_tlb_pte(old_pte, mm, addr); __radix_pte_update(ptep, 0, new_pte); } else old_pte = __radix_pte_update(ptep, clr, set); -- 2.10.2