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Message-Id: <1358073890-3610-8-git-send-email-geert@linux-m68k.org>
Date: Sun, 13 Jan 2013 11:44:49 +0100
From: Geert Uytterhoeven <geert@...ux-m68k.org>
To: linux-arch@...r.kernel.org
Cc: linux-kernel@...r.kernel.org,
Geert Uytterhoeven <geert@...ux-m68k.org>,
Marek Szyprowski <m.szyprowski@...sung.com>,
linux-parisc@...r.kernel.org
Subject: [PATCH 8/9] parisc: Provide dma_mmap_coherent() and dma_get_sgtable()
parisc/allmodconfig:
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 <asm-generic/dma-mapping-common.h>.
Parisc does not use dma_map_ops, hence it should implement them as inline
stubs using dma_common_mmap() and dma_common_get_sgtable().
Signed-off-by: Geert Uytterhoeven <geert@...ux-m68k.org>
Cc: Marek Szyprowski <m.szyprowski@...sung.com>
Cc: linux-parisc@...r.kernel.org
---
arch/parisc/include/asm/dma-mapping.h | 10 ++++++++++
1 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
index 467bbd5..1fac0bf 100644
--- a/arch/parisc/include/asm/dma-mapping.h
+++ b/arch/parisc/include/asm/dma-mapping.h
@@ -238,4 +238,14 @@ void * sba_get_iommu(struct parisc_device *dev);
/* At the moment, we panic on error for IOMMU resource exaustion */
#define dma_mapping_error(dev, x) 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
--
1.7.0.4
--
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