From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756584Ab3A0Kff (ORCPT ); Sun, 27 Jan 2013 05:35:35 -0500 Received: from gerard.telenet-ops.be ([195.130.132.48]:59695 "EHLO gerard.telenet-ops.be" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756413Ab3A0Kdd (ORCPT ); Sun, 27 Jan 2013 05:33:33 -0500 From: Geert Uytterhoeven To: linux-arch@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Geert Uytterhoeven , Marek Szyprowski , linux-c6x-dev@linux-c6x.org Subject: [PATCH v2 3/9] c6x: Provide dummy dma_mmap_coherent() and dma_get_sgtable() Date: Sun, 27 Jan 2013 11:33:22 +0100 Message-Id: <1359282808-31398-4-git-send-email-geert@linux-m68k.org> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1359282808-31398-1-git-send-email-geert@linux-m68k.org> References: <1359282808-31398-1-git-send-email-geert@linux-m68k.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org c6x/allmodconfig (assumed): drivers/media/v4l2-core/videobuf2-dma-contig.c: In function ‘vb2_dc_mmap’: drivers/media/v4l2-core/videobuf2-dma-contig.c:204: error: implicit declaration of function ‘dma_mmap_coherent’ drivers/media/v4l2-core/videobuf2-dma-contig.c: In function ‘vb2_dc_get_base_sgt’: drivers/media/v4l2-core/videobuf2-dma-contig.c:387: error: implicit declaration of function ‘dma_get_sgtable’ For architectures using dma_map_ops, dma_mmap_coherent() and dma_get_sgtable() are provided in . C6x does not use dma_map_ops, hence it should implement them itself. For now, use dummy implementations that just return -EINVAL, until the API has been finalized. Signed-off-by: Geert Uytterhoeven Cc: Marek Szyprowski Cc: linux-c6x-dev@linux-c6x.org --- v2: Dummy implementations that just return -EINVAL Not compile-tested due to lack of cross-compiler --- arch/c6x/include/asm/dma-mapping.h | 15 +++++++++++++++ 1 files changed, 15 insertions(+), 0 deletions(-) diff --git a/arch/c6x/include/asm/dma-mapping.h b/arch/c6x/include/asm/dma-mapping.h index 3c69406..88bd0d8 100644 --- a/arch/c6x/include/asm/dma-mapping.h +++ b/arch/c6x/include/asm/dma-mapping.h @@ -89,4 +89,19 @@ extern void dma_free_coherent(struct device *, size_t, void *, dma_addr_t); #define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent((d), (s), (h), (f)) #define dma_free_noncoherent(d, s, v, h) dma_free_coherent((d), (s), (v), (h)) +/* Not supported for now */ +static inline int dma_mmap_coherent(struct device *dev, + struct vm_area_struct *vma, void *cpu_addr, + dma_addr_t dma_addr, size_t size) +{ + return -EINVAL; +} + +static inline int dma_get_sgtable(struct device *dev, struct sg_table *sgt, + void *cpu_addr, dma_addr_t dma_addr, + size_t size) +{ + return -EINVAL; +} + #endif /* _ASM_C6X_DMA_MAPPING_H */ -- 1.7.0.4