From patchwork Mon Nov 9 18:17:16 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 7586051 Return-Path: X-Original-To: patchwork-linux-parisc@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 57D97C05C6 for ; Mon, 9 Nov 2015 18:22:30 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 2F6062070B for ; Mon, 9 Nov 2015 18:22:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C2335206F3 for ; Mon, 9 Nov 2015 18:22:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752796AbbKISW1 (ORCPT ); Mon, 9 Nov 2015 13:22:27 -0500 Received: from bombadil.infradead.org ([198.137.202.9]:58566 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752426AbbKISW0 (ORCPT ); Mon, 9 Nov 2015 13:22:26 -0500 Received: from [83.175.99.196] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.80.1 #2 (Red Hat Linux)) id 1Zvr58-0003dO-Dx; Mon, 09 Nov 2015 18:22:19 +0000 From: Christoph Hellwig To: Andrew Morton , Haavard Skinnemoen , Hans-Christian Egtvedt , Steven Miao , Ley Foon Tan , David Howells , Koichi Yasutake , Chris Metcalf , linux-snps-arc@lists.infraded.org, linux-c6x-dev@linux-c6x.org, linux-cris-kernel@axis.com, linux-parisc@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-metag@vger.kernel.org, sparclinux@vger.kernel.org, iommu@lists.linux-foundation.org Subject: [PATCH 11/16] m68k: convert to dma_map_ops Date: Mon, 9 Nov 2015 19:17:16 +0100 Message-Id: <1447093041-21832-12-git-send-email-hch@lst.de> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1447093041-21832-1-git-send-email-hch@lst.de> References: <1447093041-21832-1-git-send-email-hch@lst.de> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html Sender: linux-parisc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-parisc@vger.kernel.org X-Spam-Status: No, score=-7.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Christoph Hellwig --- arch/m68k/Kconfig | 1 + arch/m68k/include/asm/dma-mapping.h | 112 ++---------------------------------- arch/m68k/kernel/dma.c | 61 +++++++++----------- 3 files changed, 32 insertions(+), 142 deletions(-) diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig index 498b567..d5d75b3 100644 --- a/arch/m68k/Kconfig +++ b/arch/m68k/Kconfig @@ -23,6 +23,7 @@ config M68K select MODULES_USE_ELF_RELA select OLD_SIGSUSPEND3 select OLD_SIGACTION + select HAVE_DMA_ATTRS config RWSEM_GENERIC_SPINLOCK bool diff --git a/arch/m68k/include/asm/dma-mapping.h b/arch/m68k/include/asm/dma-mapping.h index 05aa535..2c082a6 100644 --- a/arch/m68k/include/asm/dma-mapping.h +++ b/arch/m68k/include/asm/dma-mapping.h @@ -1,123 +1,19 @@ #ifndef _M68K_DMA_MAPPING_H #define _M68K_DMA_MAPPING_H -#include +extern struct dma_map_ops m68k_dma_ops; -struct scatterlist; - -static inline int dma_supported(struct device *dev, u64 mask) -{ - return 1; -} - -static inline int dma_set_mask(struct device *dev, u64 mask) +static inline struct dma_map_ops *get_dma_ops(struct device *dev) { - return 0; + return &m68k_dma_ops; } -extern void *dma_alloc_coherent(struct device *, size_t, - dma_addr_t *, gfp_t); -extern void dma_free_coherent(struct device *, size_t, - void *, dma_addr_t); +#include -static inline void *dma_alloc_attrs(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag, - struct dma_attrs *attrs) -{ - /* attrs is not supported and ignored */ - return dma_alloc_coherent(dev, size, dma_handle, flag); -} - -static inline void dma_free_attrs(struct device *dev, size_t size, - void *cpu_addr, dma_addr_t dma_handle, - struct dma_attrs *attrs) -{ - /* attrs is not supported and ignored */ - dma_free_coherent(dev, size, cpu_addr, dma_handle); -} - -static inline void *dma_alloc_noncoherent(struct device *dev, size_t size, - dma_addr_t *handle, gfp_t flag) -{ - return dma_alloc_coherent(dev, size, handle, flag); -} -static inline void dma_free_noncoherent(struct device *dev, size_t size, - void *addr, dma_addr_t handle) -{ - dma_free_coherent(dev, size, addr, handle); -} static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size, enum dma_data_direction dir) { /* we use coherent allocation, so not much to do here. */ } -extern dma_addr_t dma_map_single(struct device *, void *, size_t, - enum dma_data_direction); -static inline void dma_unmap_single(struct device *dev, dma_addr_t addr, - size_t size, enum dma_data_direction dir) -{ -} - -extern dma_addr_t dma_map_page(struct device *, struct page *, - unsigned long, size_t size, - enum dma_data_direction); -static inline void dma_unmap_page(struct device *dev, dma_addr_t address, - size_t size, enum dma_data_direction dir) -{ -} - -extern int dma_map_sg(struct device *, struct scatterlist *, int, - enum dma_data_direction); -static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg, - int nhwentries, enum dma_data_direction dir) -{ -} - -extern void dma_sync_single_for_device(struct device *, dma_addr_t, size_t, - enum dma_data_direction); -extern void dma_sync_sg_for_device(struct device *, struct scatterlist *, int, - enum dma_data_direction); - -static inline void dma_sync_single_range_for_device(struct device *dev, - dma_addr_t dma_handle, unsigned long offset, size_t size, - enum dma_data_direction direction) -{ - /* just sync everything for now */ - dma_sync_single_for_device(dev, dma_handle, offset + size, direction); -} - -static inline void dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle, - size_t size, enum dma_data_direction dir) -{ -} - -static inline void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, - int nents, enum dma_data_direction dir) -{ -} - -static inline void dma_sync_single_range_for_cpu(struct device *dev, - dma_addr_t dma_handle, unsigned long offset, size_t size, - enum dma_data_direction direction) -{ - /* just sync everything for now */ - dma_sync_single_for_cpu(dev, dma_handle, offset + size, direction); -} - -static inline int dma_mapping_error(struct device *dev, dma_addr_t handle) -{ - return 0; -} - -/* drivers/base/dma-mapping.c */ -extern int dma_common_mmap(struct device *dev, struct vm_area_struct *vma, - void *cpu_addr, dma_addr_t dma_addr, size_t size); -extern int dma_common_get_sgtable(struct device *dev, struct sg_table *sgt, - void *cpu_addr, dma_addr_t dma_addr, - size_t size); - -#define dma_mmap_coherent(d, v, c, h, s) dma_common_mmap(d, v, c, h, s) -#define dma_get_sgtable(d, t, v, h, s) dma_common_get_sgtable(d, t, v, h, s) - #endif /* _M68K_DMA_MAPPING_H */ diff --git a/arch/m68k/kernel/dma.c b/arch/m68k/kernel/dma.c index 564665f..cbc78b4 100644 --- a/arch/m68k/kernel/dma.c +++ b/arch/m68k/kernel/dma.c @@ -18,8 +18,8 @@ #if defined(CONFIG_MMU) && !defined(CONFIG_COLDFIRE) -void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *handle, gfp_t flag) +static void *m68k_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle, + gfp_t flag, struct dma_attrs *attrs) { struct page *page, **map; pgprot_t pgprot; @@ -61,8 +61,8 @@ void *dma_alloc_coherent(struct device *dev, size_t size, return addr; } -void dma_free_coherent(struct device *dev, size_t size, - void *addr, dma_addr_t handle) +static void m68k_dma_free(struct device *dev, size_t size, void *addr, + dma_addr_t handle, struct dma_attrs *attrs) { pr_debug("dma_free_coherent: %p, %x\n", addr, handle); vfree(addr); @@ -72,8 +72,8 @@ void dma_free_coherent(struct device *dev, size_t size, #include -void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t gfp) +static void *m68k_dma_alloc(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t gfp, struct dma_attrs *attrs) { void *ret; /* ignore region specifiers */ @@ -90,19 +90,16 @@ void *dma_alloc_coherent(struct device *dev, size_t size, return ret; } -void dma_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle) +static void m68k_dma_free(struct device *dev, size_t size, void *vaddr, + dma_addr_t dma_handle, struct dma_attrs *attrs) { free_pages((unsigned long)vaddr, get_order(size)); } #endif /* CONFIG_MMU && !CONFIG_COLDFIRE */ -EXPORT_SYMBOL(dma_alloc_coherent); -EXPORT_SYMBOL(dma_free_coherent); - -void dma_sync_single_for_device(struct device *dev, dma_addr_t handle, - size_t size, enum dma_data_direction dir) +static void m68k_dma_sync_single_for_device(struct device *dev, + dma_addr_t handle, size_t size, enum dma_data_direction dir) { switch (dir) { case DMA_BIDIRECTIONAL: @@ -118,10 +115,9 @@ void dma_sync_single_for_device(struct device *dev, dma_addr_t handle, break; } } -EXPORT_SYMBOL(dma_sync_single_for_device); -void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sglist, - int nents, enum dma_data_direction dir) +static void m68k_dma_sync_sg_for_device(struct device *dev, + struct scatterlist *sglist, int nents, enum dma_data_direction dir) { int i; struct scatterlist *sg; @@ -131,31 +127,19 @@ void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sglist, dir); } } -EXPORT_SYMBOL(dma_sync_sg_for_device); - -dma_addr_t dma_map_single(struct device *dev, void *addr, size_t size, - enum dma_data_direction dir) -{ - dma_addr_t handle = virt_to_bus(addr); - - dma_sync_single_for_device(dev, handle, size, dir); - return handle; -} -EXPORT_SYMBOL(dma_map_single); -dma_addr_t dma_map_page(struct device *dev, struct page *page, - unsigned long offset, size_t size, - enum dma_data_direction dir) +static dma_addr_t m68k_dma_map_page(struct device *dev, struct page *page, + unsigned long offset, size_t size, enum dma_data_direction dir, + struct dma_attrs *attrs) { dma_addr_t handle = page_to_phys(page) + offset; dma_sync_single_for_device(dev, handle, size, dir); return handle; } -EXPORT_SYMBOL(dma_map_page); -int dma_map_sg(struct device *dev, struct scatterlist *sglist, int nents, - enum dma_data_direction dir) +static int m68k_dma_map_sg(struct device *dev, struct scatterlist *sglist, + int nents, enum dma_data_direction dir, struct dma_attrs *attrs) { int i; struct scatterlist *sg; @@ -167,4 +151,13 @@ int dma_map_sg(struct device *dev, struct scatterlist *sglist, int nents, } return nents; } -EXPORT_SYMBOL(dma_map_sg); + +struct dma_map_ops m68k_dma_ops = { + .alloc = m68k_dma_alloc, + .free = m68k_dma_free, + .map_page = m68k_dma_map_page, + .map_sg = m68k_dma_map_sg, + .sync_single_for_device = m68k_dma_sync_single_for_device, + .sync_sg_for_device = m68k_dma_sync_sg_for_device, +}; +EXPORT_SYMBOL(m68k_dma_ops);