u-boot-brain/arch/nds32/include/asm/dma-mapping.h

/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * Copyright (C) 2013 Andes Technology Corporation
 * Ken Kuo, Andes Technology Corporation <ken_kuo@andestech.com>
 */
#ifndef __ASM_NDS_DMA_MAPPING_H
#define __ASM_NDS_DMA_MAPPING_H

#include <common.h>
#include <asm/cache.h>
#include <cpu_func.h>
#include <linux/dma-direction.h>
#include <linux/types.h>
#include <malloc.h>

static void *dma_alloc_coherent(size_t len, unsigned long *handle)
{
	*handle = (unsigned long)memalign(ARCH_DMA_MINALIGN, len);
	return (void *)*handle;
}

#endif /* __ASM_NDS_DMA_MAPPING_H */
SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com> 2018-05-07 06:58:06 +09:00			`/* SPDX-License-Identifier: GPL-2.0+ */`
nds32: introduce DMA allocation API U-Boot does not compile for the adp-ag101 boards since commit a8f9cd1893bef05b92f63242228607b45821c4a7 (net: update FTGMAC100 for MMU/D-cache support) The driver assumes that the DMA allocation API are provided by all architectures. This is not the case for nds32 and it causes a build error. This patch adds DMA allocation API to avoid the errors. Signed-off-by: Kuan-Yu Kuo <ken.kuoky@gmail.com> Cc: Macpaul Lin <macpaul@gmail.com> Cc: Andes <uboot@andestech.com> Signed-off-by: Andes <uboot@andestech.com> 2013-08-06 02:00:53 +09:00			`/*`
			`* Copyright (C) 2013 Andes Technology Corporation`
			`* Ken Kuo, Andes Technology Corporation <ken_kuo@andestech.com>`
			`*/`
			`#ifndef __ASM_NDS_DMA_MAPPING_H`
			`#define __ASM_NDS_DMA_MAPPING_H`

asm: dma-mapping.h: Fix dma mapping functions Subsystems such as USB expect dma_map_single() and dma_unmap_single() to do dcache flush/invalidate operations as required. For example, see see drivers/usb/gadget/udc/udc-core.c::usb_gadget_map_request(). Currently drivers do this locally, (see drivers/usb/dwc3/ep0.c, drivers/mtd/nand/raw/denali.c etc..) Update arch specific dma_map_single() and dma_unmap_single() APIs to do cache flush/invalidate operations, so that drivers need not implement them locally. Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Rick Chen <rick@andestech.com> 2020-01-16 17:53:45 +09:00			`#include <common.h>`
			`#include <asm/cache.h>`
			`#include <cpu_func.h>`
dma: import linux/dma-direction.h to consolidate enum dma_data_direction Import include/linux/dma-direction.h from Linux 4.13-rc7 and delete duplicated definitions of enum dma_data_direction. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> 2017-08-26 00:50:17 +09:00			`#include <linux/dma-direction.h>`
dma-mapping: fix the prototype of dma_map_single() Make dma_map_single() return the dma address, and remove the pointless volatile. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> 2020-02-14 16:40:17 +09:00			`#include <linux/types.h>`
asm: dma-mapping.h: Fix dma mapping functions Subsystems such as USB expect dma_map_single() and dma_unmap_single() to do dcache flush/invalidate operations as required. For example, see see drivers/usb/gadget/udc/udc-core.c::usb_gadget_map_request(). Currently drivers do this locally, (see drivers/usb/dwc3/ep0.c, drivers/mtd/nand/raw/denali.c etc..) Update arch specific dma_map_single() and dma_unmap_single() APIs to do cache flush/invalidate operations, so that drivers need not implement them locally. Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Rick Chen <rick@andestech.com> 2020-01-16 17:53:45 +09:00			`#include <malloc.h>`
nds32: introduce DMA allocation API U-Boot does not compile for the adp-ag101 boards since commit a8f9cd1893bef05b92f63242228607b45821c4a7 (net: update FTGMAC100 for MMU/D-cache support) The driver assumes that the DMA allocation API are provided by all architectures. This is not the case for nds32 and it causes a build error. This patch adds DMA allocation API to avoid the errors. Signed-off-by: Kuan-Yu Kuo <ken.kuoky@gmail.com> Cc: Macpaul Lin <macpaul@gmail.com> Cc: Andes <uboot@andestech.com> Signed-off-by: Andes <uboot@andestech.com> 2013-08-06 02:00:53 +09:00
			`static void dma_alloc_coherent(size_t len, unsigned long handle)`
			`{`
			`*handle = (unsigned long)memalign(ARCH_DMA_MINALIGN, len);`
			`return (void )handle;`
			`}`

			`#endif /* __ASM_NDS_DMA_MAPPING_H */`