diff options
Diffstat (limited to 'c/src/lib/libcpu/powerpc/mpc8xx/include/mmu.h')
-rw-r--r-- | c/src/lib/libcpu/powerpc/mpc8xx/include/mmu.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/c/src/lib/libcpu/powerpc/mpc8xx/include/mmu.h b/c/src/lib/libcpu/powerpc/mpc8xx/include/mmu.h new file mode 100644 index 0000000000..7370e0cf5a --- /dev/null +++ b/c/src/lib/libcpu/powerpc/mpc8xx/include/mmu.h @@ -0,0 +1,49 @@ +/* + * mmu.h + * + * This include file contains definitions pertaining + * to the MMU on the MPC8xx. + * + * Copyright (c) 1999, National Research Council of Canada + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.OARcorp.com/rtems/license.html. + */ + +#ifndef __M8xx_MMU_h +#define __M8xx_MMU_h + +#ifdef __cplusplus +extern "C" { +#endif + +#include <bsp.h> + +/* + * The MMU_TLB_table is used to statically initialize the Table Lookaside + * Buffers in the MMU of an MPC8xx. + */ +typedef struct { + unsigned32 mmu_epn; /* Effective Page Number */ + unsigned32 mmu_twc; /* Tablewalk Control Register */ + unsigned32 mmu_rpn; /* Real Page Number */ +} MMU_TLB_table_t; + +/* + * The MMU_TLB_table and its size, MMU_N_TLB_Table_Entries, must be + * supplied by the BSP. + */ +extern MMU_TLB_table_t MMU_TLB_table[]; /* MMU TLB table supplied by BSP */ +extern int MMU_N_TLB_Table_Entries; /* Number of entries in MMU TLB table */ + +/* Functions */ + +void mmu_init( void ); + +#ifdef __cplusplus +} +#endif + +#endif +/* end of include file */ |