Commit a1ff82a9 authored by Peng Ma's avatar Peng Ma Committed by Vinod Koul
Browse files

dmaengine: fsldma: Adding macro FSL_DMA_IN/OUT implement for ARM platform 



This patch add the macro FSL_DMA_IN/OUT implement for ARM platform.

Signed-off-by: default avatarWen He <wen.he_1@nxp.com>
Signed-off-by: default avatarPeng Ma <peng.ma@nxp.com>
Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent a7359e76

drivers/dma/fsldma.h

+42 −19
Original line number Diff line number Diff line
@@ -196,39 +196,62 @@ struct fsldma_chan { 
#define to_fsl_desc(lh) container_of(lh, struct fsl_desc_sw, node)

#define tx_to_fsl_desc(tx) container_of(tx, struct fsl_desc_sw, async_tx)



#ifdef	CONFIG_PPC

#define fsl_ioread32(p)		in_le32(p)

#define fsl_ioread32be(p)	in_be32(p)

#define fsl_iowrite32(v, p)	out_le32(p, v)

#define fsl_iowrite32be(v, p)	out_be32(p, v)



#ifndef __powerpc64__

static u64 in_be64(const u64 __iomem *addr)

static u64 fsl_ioread64(const u64 __iomem *addr)

{

	return ((u64)in_be32((u32 __iomem *)addr) << 32) |

		(in_be32((u32 __iomem *)addr + 1));

	u32 fsl_addr = lower_32_bits(addr);

	u64 fsl_addr_hi = (u64)in_le32((u32 *)(fsl_addr + 1)) << 32;



	return fsl_addr_hi | in_le32((u32 *)fsl_addr);

}



static void out_be64(u64 __iomem *addr, u64 val)

static void fsl_iowrite64(u64 val, u64 __iomem *addr)

{

	out_be32((u32 __iomem *)addr, val >> 32);

	out_be32((u32 __iomem *)addr + 1, (u32)val);

	out_le32((u32 __iomem *)addr + 1, val >> 32);

	out_le32((u32 __iomem *)addr, (u32)val);

}



/* There is no asm instructions for 64 bits reverse loads and stores */

static u64 in_le64(const u64 __iomem *addr)

static u64 fsl_ioread64be(const u64 __iomem *addr)

{

	return ((u64)in_le32((u32 __iomem *)addr + 1) << 32) |

		(in_le32((u32 __iomem *)addr));

	u32 fsl_addr = lower_32_bits(addr);

	u64 fsl_addr_hi = (u64)in_be32((u32 *)fsl_addr) << 32;



	return fsl_addr_hi | in_be32((u32 *)(fsl_addr + 1));

}



static void out_le64(u64 __iomem *addr, u64 val)

static void fsl_iowrite64be(u64 val, u64 __iomem *addr)

{

	out_le32((u32 __iomem *)addr + 1, val >> 32);

	out_le32((u32 __iomem *)addr, (u32)val);

	out_be32((u32 __iomem *)addr, val >> 32);

	out_be32((u32 __iomem *)addr + 1, (u32)val);

}

#endif

#endif



#define FSL_DMA_IN(fsl_chan, addr, width)				\

		(((fsl_chan)->feature & FSL_DMA_BIG_ENDIAN) ?		\

			in_be##width(addr) : in_le##width(addr))

#define FSL_DMA_OUT(fsl_chan, addr, val, width)			\

		(((fsl_chan)->feature & FSL_DMA_BIG_ENDIAN) ?		\

			out_be##width(addr, val) : out_le##width(addr, val))

#if defined(CONFIG_ARM64) || defined(CONFIG_ARM)

#define fsl_ioread32(p)		ioread32(p)

#define fsl_ioread32be(p)	ioread32be(p)

#define fsl_iowrite32(v, p)	iowrite32(v, p)

#define fsl_iowrite32be(v, p)	iowrite32be(v, p)

#define fsl_ioread64(p)		ioread64(p)

#define fsl_ioread64be(p)	ioread64be(p)

#define fsl_iowrite64(v, p)	iowrite64(v, p)

#define fsl_iowrite64be(v, p)	iowrite64be(v, p)

#endif



#define FSL_DMA_IN(fsl_dma, addr, width)			\

		(((fsl_dma)->feature & FSL_DMA_BIG_ENDIAN) ?	\

			fsl_ioread##width##be(addr) : fsl_ioread##width(addr))



#define FSL_DMA_OUT(fsl_dma, addr, val, width)			\

		(((fsl_dma)->feature & FSL_DMA_BIG_ENDIAN) ?	\

			fsl_iowrite##width##be(val, addr) : fsl_iowrite	\

		##width(val, addr))



#define DMA_TO_CPU(fsl_chan, d, width)					\

		(((fsl_chan)->feature & FSL_DMA_BIG_ENDIAN) ?		\