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 D3BC1CFA466 for ; Mon, 24 Nov 2025 13:23:07 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 40DFE6B0011; Mon, 24 Nov 2025 08:23:07 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 3983A6B002B; Mon, 24 Nov 2025 08:23:07 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 25FB46B002C; Mon, 24 Nov 2025 08:23:07 -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 157206B0011 for ; Mon, 24 Nov 2025 08:23:07 -0500 (EST) Received: from smtpin20.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay06.hostedemail.com (Postfix) with ESMTP id D7765130326 for ; Mon, 24 Nov 2025 13:23:06 +0000 (UTC) X-FDA: 84145566372.20.AD091F9 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by imf02.hostedemail.com (Postfix) with ESMTP id 5A4EF8000D for ; Mon, 24 Nov 2025 13:23:05 +0000 (UTC) Authentication-Results: imf02.hostedemail.com; dkim=none; dmarc=pass (policy=none) header.from=arm.com; spf=pass (imf02.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=1763990585; 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=wxflffJTh0pyYZvyWMeVPJtd+lYqkq24w2n0H8YxAm8=; b=CI4QeFJEmPs7SqyGnEQdhsqmmsv6vT0r7wMW3qyhCzeeJyNbvLOQHW9rrzcVsqt6Ddg6QJ n8y5MFJLexRsr7ZwhRf09fOeGjYx647QKzXYX7YZZXO/KaIzOn4cVy6zun2qoue7FAL5X7 xu3i7/InhJUvS03QBb6yp9fJiCeFTO0= ARC-Authentication-Results: i=1; imf02.hostedemail.com; dkim=none; dmarc=pass (policy=none) header.from=arm.com; spf=pass (imf02.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=1763990585; a=rsa-sha256; cv=none; b=qTw1JA2/+mFySO+hlhM+LF1nq+xLrsqnDplDYpFSDCOWz1r819YJUFu4VjVLcdYG0Nn+lx ha764npJOeuuxOLzkil+CumqO8a/7/Pn0xPbzaZExWDa8R+stta37MIpP4Ooxpsi1RAcWv 3zzpjUp0PV/zWR9mjQ18v3fZl2YRlQw= 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 282AA1595; Mon, 24 Nov 2025 05:22:57 -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 787003F73B; Mon, 24 Nov 2025 05:22:59 -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 04/12] sparc/mm: implement arch_flush_lazy_mmu_mode() Date: Mon, 24 Nov 2025 13:22:20 +0000 Message-ID: <20251124132228.622678-5-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-Queue-Id: 5A4EF8000D X-Stat-Signature: 46i9dsuuyoqct55gd166fouqnad13ish X-Rspamd-Server: rspam02 X-Rspam-User: X-HE-Tag: 1763990585-860471 X-HE-Meta: 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 Dqw== 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. Note: the additional this_cpu_ptr() call on the arch_leave_lazy_mmu_mode() path will be removed in a subsequent patch. Acked-by: David Hildenbrand Signed-off-by: Kevin Brodsky --- arch/sparc/include/asm/tlbflush_64.h | 2 +- arch/sparc/mm/tlb.c | 9 ++++++++- 2 files changed, 9 insertions(+), 2 deletions(-) diff --git a/arch/sparc/include/asm/tlbflush_64.h b/arch/sparc/include/asm/tlbflush_64.h index 8b8cdaa69272..925bb5d7a4e1 100644 --- a/arch/sparc/include/asm/tlbflush_64.h +++ b/arch/sparc/include/asm/tlbflush_64.h @@ -43,8 +43,8 @@ void flush_tlb_kernel_range(unsigned long start, unsigned long end); void flush_tlb_pending(void); void arch_enter_lazy_mmu_mode(void); +void arch_flush_lazy_mmu_mode(void); void arch_leave_lazy_mmu_mode(void); -#define arch_flush_lazy_mmu_mode() do {} while (0) /* Local cpu only. */ void __flush_tlb_all(void); diff --git a/arch/sparc/mm/tlb.c b/arch/sparc/mm/tlb.c index a35ddcca5e76..7b5dfcdb1243 100644 --- a/arch/sparc/mm/tlb.c +++ b/arch/sparc/mm/tlb.c @@ -59,12 +59,19 @@ void arch_enter_lazy_mmu_mode(void) tb->active = 1; } -void arch_leave_lazy_mmu_mode(void) +void arch_flush_lazy_mmu_mode(void) { struct tlb_batch *tb = this_cpu_ptr(&tlb_batch); if (tb->tlb_nr) flush_tlb_pending(); +} + +void arch_leave_lazy_mmu_mode(void) +{ + struct tlb_batch *tb = this_cpu_ptr(&tlb_batch); + + arch_flush_lazy_mmu_mode(); tb->active = 0; preempt_enable(); } -- 2.51.2