From patchwork Wed Aug 11 00:42:44 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vineet Gupta X-Patchwork-Id: 1515528 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=lists.infradead.org (client-ip=2607:7c80:54:e::133; helo=bombadil.infradead.org; envelope-from=linux-snps-arc-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org; receiver=) Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; secure) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=AzLbQ68k; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=i9E0moRA; dkim-atps=neutral Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4Gkrf42vT7z9sX3 for ; Wed, 11 Aug 2021 10:43:23 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=6VRxNyXNAuwUghs5AFFY/AIHWZvsWGZ0CdLmF7u4Hnw=; b=AzLbQ68kX4nh3F 0cqParj36SfcxI7CFZ0A8aWcBMWK+7yYyB4bFziqzvqTVyERCTjQYlNp/9KLCQbMANThtMQgS0RvC 6cNyO35pNsW1jjlo/nF6R1fw/UD06UJB5WywuQ6lJUCg/UNlXemAlKpwrwqPkXAl+KBRR/60ZGKgg m9tTRShXq8344nP5pY33/RRbok3O45JNQyN7BBQjl2P6/pMvsuHxBlTCh7bLRCTb2xQP4JrxYqH/8 uoinqBWQXWydh49Ym6dpg6Nloq6jwo4rUnQBZzug1zVQTVM/IkjKuE0qSkzHhIQyr90F7kzIC/Dfm c+9lkR3gxpQ/xcAsRCiA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mDcL3-0056fQ-IS; Wed, 11 Aug 2021 00:43:21 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mDcL0-0056cK-DJ for linux-snps-arc@lists.infradead.org; Wed, 11 Aug 2021 00:43:19 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id D498960EFF; Wed, 11 Aug 2021 00:43:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1628642598; bh=o68pQKOkoMjqGvslTv9+5NhBcfzvevarzmfnV2WjK38=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=i9E0moRAtyOyw9Sx7Ur777jymu/dOGX06mLGlJiV9J7UjMcNqnZWnrasSe3jnphZJ m+oAeup8cQVGK1bf56LRFIkx8Afv89ZYjAcP+0kpXROVmnN3s7OvB6IHo18pefNK/r xqrqgkMNIo/2uXAZMXCbo4FTNMGFWtrVIwuY3cLhAzJFHNFFX4bqFzm6uNgosWyKrL v8phW7+OpxKLP1YbUgtaCcUGwQDdZc7EJhMrrDN0UpaM8kwi3aZ9n9iEj68R/2sVMI +3zBgBaR0tjm1iv+IVAFceG3SkGbmKRRzSnLN8WcfL6xIs+dWiE0ZyoSB+RmCE4a4o d9YpYBgglc12A== From: Vineet Gupta To: linux-snps-arc@lists.infradead.org Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, Anshuman Khandual , Mike Rapoport , Vineet Gupta Subject: [PATCH 04/18] ARC: mm: remove pgd_offset_fast Date: Tue, 10 Aug 2021 17:42:44 -0700 Message-Id: <20210811004258.138075-5-vgupta@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210811004258.138075-1-vgupta@kernel.org> References: <20210811004258.138075-1-vgupta@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210810_174318_506304_04A51B43 X-CRM114-Status: UNSURE ( 8.59 ) X-CRM114-Notice: Please train this message. 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Content preview: Signed-off-by: Vineet Gupta --- arch/arc/include/asm/pgtable.h | 23 arch/arc/mm/fault.c | 2 +- 2 files changed, 1 insertion(+), 24 deletions(-) diff --git a/arch/arc/include/asm/pgtable.h b/arch/arc/include/asm/pgtable.h index 0c3e220bd2b4..80b57c14b430 100644 --- a/arch/arc/include/asm/pgtable.h +++ b/arch/arc/include/asm/pgtable.h @@ -284,2 [...] Content analysis details: (-5.4 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [198.145.29.99 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.2 DKIMWL_WL_HIGH DKIMwl.org - High trust sender X-BeenThere: linux-snps-arc@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux on Synopsys ARC Processors List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-snps-arc" Errors-To: linux-snps-arc-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org Signed-off-by: Vineet Gupta --- arch/arc/include/asm/pgtable.h | 23 ----------------------- arch/arc/mm/fault.c | 2 +- 2 files changed, 1 insertion(+), 24 deletions(-) diff --git a/arch/arc/include/asm/pgtable.h b/arch/arc/include/asm/pgtable.h index 0c3e220bd2b4..80b57c14b430 100644 --- a/arch/arc/include/asm/pgtable.h +++ b/arch/arc/include/asm/pgtable.h @@ -284,29 +284,6 @@ static inline void set_pte_at(struct mm_struct *mm, unsigned long addr, set_pte(ptep, pteval); } -/* - * Macro to quickly access the PGD entry, utlising the fact that some - * arch may cache the pointer to Page Directory of "current" task - * in a MMU register - * - * Thus task->mm->pgd (3 pointer dereferences, cache misses etc simply - * becomes read a register - * - * ********CAUTION*******: - * Kernel code might be dealing with some mm_struct of NON "current" - * Thus use this macro only when you are certain that "current" is current - * e.g. when dealing with signal frame setup code etc - */ -#ifdef ARC_USE_SCRATCH_REG -#define pgd_offset_fast(mm, addr) \ -({ \ - pgd_t *pgd_base = (pgd_t *) read_aux_reg(ARC_REG_SCRATCH_DATA0); \ - pgd_base + pgd_index(addr); \ -}) -#else -#define pgd_offset_fast(mm, addr) pgd_offset(mm, addr) -#endif - extern pgd_t swapper_pg_dir[] __aligned(PAGE_SIZE); void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *ptep); diff --git a/arch/arc/mm/fault.c b/arch/arc/mm/fault.c index f5657cb68e4f..41f154320964 100644 --- a/arch/arc/mm/fault.c +++ b/arch/arc/mm/fault.c @@ -33,7 +33,7 @@ noinline static int handle_kernel_vaddr_fault(unsigned long address) pud_t *pud, *pud_k; pmd_t *pmd, *pmd_k; - pgd = pgd_offset_fast(current->active_mm, address); + pgd = pgd_offset(current->active_mm, address); pgd_k = pgd_offset_k(address); if (!pgd_present(*pgd_k))