From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 84E39CFA466 for ; Mon, 24 Nov 2025 13:23:02 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id DF9866B0029; Mon, 24 Nov 2025 08:23:01 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id DA9A36B002B; Mon, 24 Nov 2025 08:23:01 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id C98B26B002C; Mon, 24 Nov 2025 08:23:01 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0015.hostedemail.com [216.40.44.15]) by kanga.kvack.org (Postfix) with ESMTP id B2E9F6B0029 for ; Mon, 24 Nov 2025 08:23:01 -0500 (EST) Received: from smtpin13.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay06.hostedemail.com (Postfix) with ESMTP id 86B3013032D for ; Mon, 24 Nov 2025 13:23:01 +0000 (UTC) X-FDA: 84145566162.13.D272D48 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by imf11.hostedemail.com (Postfix) with ESMTP id DCFF34000E for ; Mon, 24 Nov 2025 13:22:59 +0000 (UTC) Authentication-Results: imf11.hostedemail.com; dkim=none; dmarc=pass (policy=none) header.from=arm.com; spf=pass (imf11.hostedemail.com: domain of kevin.brodsky@arm.com designates 217.140.110.172 as permitted sender) smtp.mailfrom=kevin.brodsky@arm.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1763990580; a=rsa-sha256; cv=none; b=1CXQZS/NrI5QZAAJ15R09aoNvMjTybeN/5kYT7hEp3Ux14wfXIiX9yL2bOuJOLf2wknh/a 5u8zW8kYzUeyZ9WvE/JpjU/3bbWGDICBqe68u4EmmDt3pLGOJ10oxNzr63/6zmDgnfqvav PlgUNuPeURcYd47cNGvsweBzYJMIoMo= ARC-Authentication-Results: i=1; imf11.hostedemail.com; dkim=none; dmarc=pass (policy=none) header.from=arm.com; spf=pass (imf11.hostedemail.com: domain of kevin.brodsky@arm.com designates 217.140.110.172 as permitted sender) smtp.mailfrom=kevin.brodsky@arm.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1763990580; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=WVgyfR//D2q7JroeMxNIl2TxTXsGcGIa5UzeM8XuVb4=; b=FP+SCkk3wh9EQ6fyhg+gXhm0UJYR6vFDc0+6fStr+CgE2zdbb93kOLB70lrJrSdEsJT/QI 7M3N8CuiRvyeF6Vg1Z4jMPYatrJN4iS4lGvgAFstQ7ExvWEYnrSQGv+Gl2h6L0C0wqq0Gl APDQbNvdSAHlOsyTmO+n3MmDdPDpF10= Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id A86B71516; Mon, 24 Nov 2025 05:22:51 -0800 (PST) Received: from e123572-lin.arm.com (e123572-lin.cambridge.arm.com [10.1.194.54]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 0518D3F73B; Mon, 24 Nov 2025 05:22:53 -0800 (PST) From: Kevin Brodsky To: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org, Kevin Brodsky , Alexander Gordeev , Andreas Larsson , Andrew Morton , Boris Ostrovsky , Borislav Petkov , Catalin Marinas , Christophe Leroy , Dave Hansen , David Hildenbrand , "David S. Miller" , David Woodhouse , "H. Peter Anvin" , Ingo Molnar , Jann Horn , Juergen Gross , "Liam R. Howlett" , Lorenzo Stoakes , Madhavan Srinivasan , Michael Ellerman , Michal Hocko , Mike Rapoport , Nicholas Piggin , Peter Zijlstra , "Ritesh Harjani (IBM)" , Ryan Roberts , Suren Baghdasaryan , Thomas Gleixner , Venkat Rao Bagalkote , Vlastimil Babka , Will Deacon , Yeoreum Yun , linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, sparclinux@vger.kernel.org, xen-devel@lists.xenproject.org, x86@kernel.org Subject: [PATCH v5 03/12] powerpc/mm: implement arch_flush_lazy_mmu_mode() Date: Mon, 24 Nov 2025 13:22:19 +0000 Message-ID: <20251124132228.622678-4-kevin.brodsky@arm.com> X-Mailer: git-send-email 2.51.2 In-Reply-To: <20251124132228.622678-1-kevin.brodsky@arm.com> References: <20251124132228.622678-1-kevin.brodsky@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: DCFF34000E X-Stat-Signature: ixiy11dxinnij1hq5649tyc6uojhzu51 X-Rspam-User: X-HE-Tag: 1763990579-862570 X-HE-Meta: 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 R+GQELFs PhzSHJTFVW66mYrRH8qEZ/flv8YA9MsWK5MdbsngheJHQxx7v3YVJp26nEWCkRK04KZy8TCtSIeznc+Skmfld5IycqMXXZewj3ocRRuOo6P9BUp2DzGqksmKo5cDfhfmXfIPEO5SkbSaZiMlAVmkBvFWLVm6/OZuTs2SwBe4JKJVzNz27IBNMHGg/thoq+Kvo04vmnOO/f1XtgQPCn+LkGCtjTrCEcci5OrvMb1Ptywyxz4eiiJd695pvM91u7YkK8VFOBToHMBtNhAwsdU2MNcPxkN9i73AmsgZY7bFoES7XWen+hzB1XV+vXcIeIHEz3IYQlWPTr4dV0nU= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Upcoming changes to the lazy_mmu API will cause arch_flush_lazy_mmu_mode() to be called when leaving a nested lazy_mmu section. Move the relevant logic from arch_leave_lazy_mmu_mode() to arch_flush_lazy_mmu_mode() and have the former call the latter. The radix_enabled() check is required in both as arch_flush_lazy_mmu_mode() will be called directly from the generic layer in a subsequent patch. Note: the additional this_cpu_ptr() and radix_enabled() calls on the arch_leave_lazy_mmu_mode() path will be removed in a subsequent patch. Acked-by: David Hildenbrand Signed-off-by: Kevin Brodsky --- .../powerpc/include/asm/book3s/64/tlbflush-hash.h | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/include/asm/book3s/64/tlbflush-hash.h b/arch/powerpc/include/asm/book3s/64/tlbflush-hash.h index 146287d9580f..2d45f57df169 100644 --- a/arch/powerpc/include/asm/book3s/64/tlbflush-hash.h +++ b/arch/powerpc/include/asm/book3s/64/tlbflush-hash.h @@ -41,7 +41,7 @@ static inline void arch_enter_lazy_mmu_mode(void) batch->active = 1; } -static inline void arch_leave_lazy_mmu_mode(void) +static inline void arch_flush_lazy_mmu_mode(void) { struct ppc64_tlb_batch *batch; @@ -51,12 +51,21 @@ static inline void arch_leave_lazy_mmu_mode(void) if (batch->index) __flush_tlb_pending(batch); +} + +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); + + arch_flush_lazy_mmu_mode(); batch->active = 0; preempt_enable(); } -#define arch_flush_lazy_mmu_mode() do {} while (0) - extern void hash__tlbiel_all(unsigned int action); extern void flush_hash_page(unsigned long vpn, real_pte_t pte, int psize, -- 2.51.2