diff options
Diffstat (limited to 'arch/sh/include/cpu-sh4/cpu/sq.h')
| -rw-r--r-- | arch/sh/include/cpu-sh4/cpu/sq.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/sh/include/cpu-sh4/cpu/sq.h b/arch/sh/include/cpu-sh4/cpu/sq.h new file mode 100644 index 000000000..81966e41f --- /dev/null +++ b/arch/sh/include/cpu-sh4/cpu/sq.h @@ -0,0 +1,33 @@ +/* SPDX-License-Identifier: GPL-2.0 + * + * include/asm-sh/cpu-sh4/sq.h + * + * Copyright (C) 2001, 2002, 2003 Paul Mundt + * Copyright (C) 2001, 2002 M. R. Brown + */ +#ifndef __ASM_CPU_SH4_SQ_H +#define __ASM_CPU_SH4_SQ_H + +#include <asm/addrspace.h> +#include <asm/page.h> + +/* + * Store queues range from e0000000-e3fffffc, allowing approx. 64MB to be + * mapped to any physical address space. Since data is written (and aligned) + * to 32-byte boundaries, we need to be sure that all allocations are aligned. + */ +#define SQ_SIZE 32 +#define SQ_ALIGN_MASK (~(SQ_SIZE - 1)) +#define SQ_ALIGN(addr) (((addr)+SQ_SIZE-1) & SQ_ALIGN_MASK) + +#define SQ_QACR0 (P4SEG_REG_BASE + 0x38) +#define SQ_QACR1 (P4SEG_REG_BASE + 0x3c) +#define SQ_ADDRMAX (P4SEG_STORE_QUE + 0x04000000) + +/* arch/sh/kernel/cpu/sh4/sq.c */ +unsigned long sq_remap(unsigned long phys, unsigned int size, + const char *name, pgprot_t prot); +void sq_unmap(unsigned long vaddr); +void sq_flush_range(unsigned long start, unsigned int len); + +#endif /* __ASM_CPU_SH4_SQ_H */ |