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Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kXNGn-0005Ee-Ek; Tue, 27 Oct 2020 11:36:05 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kXNCL-00031H-3D; Tue, 27 Oct 2020 11:31:37 +0000 Received: from aquarius.haifa.ibm.com (nesher1.haifa.il.ibm.com [195.110.40.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id BD87122281; Tue, 27 Oct 2020 11:31:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603798287; bh=C96/Yri0OpcfVOV1K/D1OQZYc09J0deYEZYDY/R242k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RO9w86ZlWcBO3seuK5eFu0P2uHFkfcLlrAbPpLsunaUHodYQ3Drj7EioUxxYpgdfn p3JtpqO0uBUP1PRzqijnlt/zHUT0wz4w2dKzUEzVBfQz9BTODh6dEaA1JnbOgeD4lN VIdUhU32rcODYbCtB1hDzAnX2L1R5dhx9g6xBprY= From: Mike Rapoport To: Andrew Morton Subject: [PATCH 12/13] m68k/mm: enable use of generic memory_model.h for !DISCONTIGMEM Date: Tue, 27 Oct 2020 13:29:54 +0200 Message-Id: <20201027112955.14157-13-rppt@kernel.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201027112955.14157-1-rppt@kernel.org> References: <20201027112955.14157-1-rppt@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201027_073129_403418_5E5AC989 X-CRM114-Status: GOOD ( 14.18 ) X-Spam-Score: -5.2 (-----) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-5.2 points) 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_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.0 DKIMWL_WL_HIGH DKIMwl.org - High trust sender X-BeenThere: linux-snps-arc@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on Synopsys ARC Processors List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-ia64@vger.kernel.org, linux-doc@vger.kernel.org, Catalin Marinas , linux-mm@kvack.org, Will Deacon , Greg Ungerer , Jonathan Corbet , Meelis Roos , Russell King , Mike Rapoport , Geert Uytterhoeven , Matt Turner , linux-snps-arc@lists.infradead.org, Alexey Dobriyan , linux-m68k@lists.linux-m68k.org, John Paul Adrian Glaubitz , linux-arm-kernel@lists.infradead.org, Michael Schmitz , Tony Luck , Vineet Gupta , linux-kernel@vger.kernel.org, linux-alpha@vger.kernel.org, linux-fsdevel@vger.kernel.org, Mike Rapoport Sender: "linux-snps-arc" Errors-To: linux-snps-arc-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org From: Mike Rapoport The pg_data_map and pg_data_table arrays as well as page_to_pfn() and pfn_to_page() are required only for DISCONTIGMEM. Other memory models can use the generic definitions in asm-generic/memory_model.h. Signed-off-by: Mike Rapoport --- arch/m68k/include/asm/page.h | 2 ++ arch/m68k/include/asm/page_mm.h | 5 +++++ arch/m68k/include/asm/virtconvert.h | 2 +- arch/m68k/mm/init.c | 6 +++--- 4 files changed, 11 insertions(+), 4 deletions(-) diff --git a/arch/m68k/include/asm/page.h b/arch/m68k/include/asm/page.h index 2614a1206f2f..6116d7094292 100644 --- a/arch/m68k/include/asm/page.h +++ b/arch/m68k/include/asm/page.h @@ -62,8 +62,10 @@ extern unsigned long _ramend; #include #endif +#ifdef CONFIG_DISCONTIGMEM #define __phys_to_pfn(paddr) ((unsigned long)((paddr) >> PAGE_SHIFT)) #define __pfn_to_phys(pfn) PFN_PHYS(pfn) +#endif #include diff --git a/arch/m68k/include/asm/page_mm.h b/arch/m68k/include/asm/page_mm.h index 0e794051d3bb..7f5912af2a52 100644 --- a/arch/m68k/include/asm/page_mm.h +++ b/arch/m68k/include/asm/page_mm.h @@ -153,6 +153,7 @@ static inline __attribute_const__ int __virt_to_node_shift(void) pfn_to_virt(page_to_pfn(page)); \ }) +#ifdef CONFIG_DISCONTIGMEM #define pfn_to_page(pfn) ({ \ unsigned long __pfn = (pfn); \ struct pglist_data *pgdat; \ @@ -165,6 +166,10 @@ static inline __attribute_const__ int __virt_to_node_shift(void) pgdat = &pg_data_map[page_to_nid(__p)]; \ ((__p) - pgdat->node_mem_map) + pgdat->node_start_pfn; \ }) +#else +#define ARCH_PFN_OFFSET (m68k_memory[0].addr) +#include +#endif #define virt_addr_valid(kaddr) ((void *)(kaddr) >= (void *)PAGE_OFFSET && (void *)(kaddr) < high_memory) #define pfn_valid(pfn) virt_addr_valid(pfn_to_virt(pfn)) diff --git a/arch/m68k/include/asm/virtconvert.h b/arch/m68k/include/asm/virtconvert.h index dfe43083b579..751bb6f4aaf6 100644 --- a/arch/m68k/include/asm/virtconvert.h +++ b/arch/m68k/include/asm/virtconvert.h @@ -31,7 +31,7 @@ static inline void *phys_to_virt(unsigned long address) /* Permanent address of a page. */ #if defined(CONFIG_MMU) && defined(CONFIG_SINGLE_MEMORY_CHUNK) #define page_to_phys(page) \ - __pa(PAGE_OFFSET + (((page) - pg_data_map[0].node_mem_map) << PAGE_SHIFT)) + __pa(PAGE_OFFSET + (((page) - mem_map) << PAGE_SHIFT)) #else #define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) #endif diff --git a/arch/m68k/mm/init.c b/arch/m68k/mm/init.c index 4b46ceace3d3..14c1e541451c 100644 --- a/arch/m68k/mm/init.c +++ b/arch/m68k/mm/init.c @@ -42,12 +42,12 @@ EXPORT_SYMBOL(empty_zero_page); #ifdef CONFIG_MMU -pg_data_t pg_data_map[MAX_NUMNODES]; -EXPORT_SYMBOL(pg_data_map); - int m68k_virt_to_node_shift; #ifdef CONFIG_DISCONTIGMEM +pg_data_t pg_data_map[MAX_NUMNODES]; +EXPORT_SYMBOL(pg_data_map); + pg_data_t *pg_data_table[65]; EXPORT_SYMBOL(pg_data_table); #endif