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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/sh/include/cpu-sh4/cpu/sq.h
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/*

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 * include/asm-sh/cpu-sh4/sq.h

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 *

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 * Copyright (C) 2001, 2002, 2003  Paul Mundt

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 * Copyright (C) 2001, 2002  M. R. Brown

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 *

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 * This file is subject to the terms and conditions of the GNU General Public

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 * License.  See the file "COPYING" in the main directory of this archive

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 * for more details.

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 */

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#ifndef __ASM_CPU_SH4_SQ_H

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#define __ASM_CPU_SH4_SQ_H

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#include <asm/addrspace.h>

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#include <asm/page.h>

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/*

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 * Store queues range from e0000000-e3fffffc, allowing approx. 64MB to be

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 * mapped to any physical address space. Since data is written (and aligned)

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 * to 32-byte boundaries, we need to be sure that all allocations are aligned.

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 */

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#define SQ_SIZE                 32

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#define SQ_ALIGN_MASK           (~(SQ_SIZE - 1))

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#define SQ_ALIGN(addr)          (((addr)+SQ_SIZE-1) & SQ_ALIGN_MASK)

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#define SQ_QACR0		(P4SEG_REG_BASE  + 0x38)

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#define SQ_QACR1		(P4SEG_REG_BASE  + 0x3c)

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#define SQ_ADDRMAX              (P4SEG_STORE_QUE + 0x04000000)

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/* arch/sh/kernel/cpu/sh4/sq.c */

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unsigned long sq_remap(unsigned long phys, unsigned int size,

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		       const char *name, pgprot_t prot);

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void sq_unmap(unsigned long vaddr);

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void sq_flush_range(unsigned long start, unsigned int len);

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#endif /* __ASM_CPU_SH4_SQ_H */

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