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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/include/linux/amba/pl330.h
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/* linux/include/linux/amba/pl330.h

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 *

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 * Copyright (C) 2010 Samsung Electronics Co. Ltd.

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 *	Jaswinder Singh <[email protected]>

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 *

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 * This program is free software; you can redistribute it and/or modify

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 * it under the terms of the GNU General Public License as published by

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 * the Free Software Foundation; either version 2 of the License, or

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 * (at your option) any later version.

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 */

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#ifndef	__AMBA_PL330_H_

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#define	__AMBA_PL330_H_

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#include <asm/hardware/pl330.h>

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struct dma_pl330_peri {

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	/*

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	 * Peri_Req i/f of the DMAC that is

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	 * peripheral could be reached from.

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	 */

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	u8 peri_id; /* {0, 31} */

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	enum pl330_reqtype rqtype;

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	/* For M->D and D->M Channels */

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	int burst_sz; /* in power of 2 */

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	dma_addr_t fifo_addr;

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};

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struct dma_pl330_platdata {

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	/*

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	 * Number of valid peripherals connected to DMAC.

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	 * This may be different from the value read from

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	 * CR0, as the PL330 implementation might have 'holes'

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	 * in the peri list or the peri could also be reached

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	 * from another DMAC which the platform prefers.

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	 */

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	u8 nr_valid_peri;

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	/* Array of valid peripherals */

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	struct dma_pl330_peri *peri;

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	/* Bytes to allocate for MC buffer */

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	unsigned mcbuf_sz;

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};

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#endif	/* __AMBA_PL330_H_ */

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