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Diffstat (limited to 'include/asm-sh/addrspace.h')
| -rw-r--r-- | include/asm-sh/addrspace.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/include/asm-sh/addrspace.h b/include/asm-sh/addrspace.h new file mode 100644 index 00000000000..dbb05d1a26d --- /dev/null +++ b/include/asm-sh/addrspace.h @@ -0,0 +1,38 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 1999 by Kaz Kojima + * + * Defitions for the address spaces of the SH CPUs. + */ +#ifndef __ASM_SH_ADDRSPACE_H +#define __ASM_SH_ADDRSPACE_H +#ifdef __KERNEL__ + +#include <asm/cpu/addrspace.h> + +/* Memory segments (32bit Priviledged mode addresses) */ +#define P0SEG 0x00000000 +#define P1SEG 0x80000000 +#define P2SEG 0xa0000000 +#define P3SEG 0xc0000000 +#define P4SEG 0xe0000000 + +/* Returns the privileged segment base of a given address */ +#define PXSEG(a) (((unsigned long)(a)) & 0xe0000000) + +/* Returns the physical address of a PnSEG (n=1,2) address */ +#define PHYSADDR(a) (((unsigned long)(a)) & 0x1fffffff) + +/* + * Map an address to a certain privileged segment + */ +#define P1SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P1SEG)) +#define P2SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P2SEG)) +#define P3SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P3SEG)) +#define P4SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P4SEG)) + +#endif /* __KERNEL__ */ +#endif /* __ASM_SH_ADDRSPACE_H */ |