diff options
| author | Jiri Gaisler <jiri@gaisler.se> | 2019-01-18 18:00:47 +0100 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2019-01-22 12:50:08 +0100 |
| commit | 9b2b389e8d6c9a871a3d5de882fc48b13bc9f1ac (patch) | |
| tree | 813132b05c576d8327ae012439feb7207289f8c6 /cpukit/score/cpu/riscv | |
| parent | grlib: use rtems_interrupt_handler_install() (diff) | |
| download | rtems-9b2b389e8d6c9a871a3d5de882fc48b13bc9f1ac.tar.bz2 | |
grlib: use cpu-independent routines for uncached access
Update #3678.
Diffstat (limited to 'cpukit/score/cpu/riscv')
| -rw-r--r-- | cpukit/score/cpu/riscv/headers.am | 2 | ||||
| -rw-r--r-- | cpukit/score/cpu/riscv/include/libcpu/access.h | 50 | ||||
| -rw-r--r-- | cpukit/score/cpu/riscv/include/libcpu/byteorder.h | 31 |
3 files changed, 83 insertions, 0 deletions
diff --git a/cpukit/score/cpu/riscv/headers.am b/cpukit/score/cpu/riscv/headers.am index 415075ce46..abb8a42f78 100644 --- a/cpukit/score/cpu/riscv/headers.am +++ b/cpukit/score/cpu/riscv/headers.am @@ -1,4 +1,6 @@ ## This file was generated by "./boostrap -H". +include_libcpu_HEADERS += score/cpu/riscv/include/libcpu/access.h +include_libcpu_HEADERS += score/cpu/riscv/include/libcpu/byteorder.h include_rtems_HEADERS += score/cpu/riscv/include/rtems/asm.h include_rtems_score_HEADERS += score/cpu/riscv/include/rtems/score/cpu.h include_rtems_score_HEADERS += score/cpu/riscv/include/rtems/score/cpu_asm.h diff --git a/cpukit/score/cpu/riscv/include/libcpu/access.h b/cpukit/score/cpu/riscv/include/libcpu/access.h new file mode 100644 index 0000000000..cdf6b77122 --- /dev/null +++ b/cpukit/score/cpu/riscv/include/libcpu/access.h @@ -0,0 +1,50 @@ +/* + * access.h - access routines for SPARC. SPARC is big endian only. + * + * COPYRIGHT (c) 2011 + * Aeroflex Gaisler. + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + */ + +#ifndef _LIBCPU_ACCESS_H +#define _LIBCPU_ACCESS_H + +#include <rtems/system.h> +#include <rtems/score/cpu.h> + +#ifdef __cplusplus +extern "C" { +#endif + +/* "Raw" access */ +extern uint8_t _ld8(uint8_t *addr); +extern void _st8(uint8_t *addr, uint8_t val); +extern uint16_t _ld16(uint16_t *addr); +extern void _st16(uint16_t *addr, uint16_t val); +extern uint32_t _ld32(uint32_t *addr); +extern void _st32(uint32_t *addr, uint32_t val); +extern uint64_t _ld64(uint64_t *addr); +extern void _st64(uint64_t *addr, uint64_t val); + +/* Aliases for Big Endian */ +extern uint16_t _ld_be16(uint16_t *addr); +extern void _st_be16(uint16_t *addr, uint16_t val); +extern uint32_t _ld_be32(uint32_t *addr); +extern void _st_be32(uint32_t *addr, uint32_t val); +extern uint64_t _ld_be64(uint64_t *addr); +extern void _st_be64(uint64_t *addr, uint64_t val); + +/* Little endian */ +extern uint16_t _ld_le16(uint16_t *addr); +extern void _st_le16(uint16_t *addr, uint16_t val); +extern uint32_t _ld_le32(uint32_t *addr); +extern void _st_le32(uint32_t *addr, uint32_t val); + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/cpukit/score/cpu/riscv/include/libcpu/byteorder.h b/cpukit/score/cpu/riscv/include/libcpu/byteorder.h new file mode 100644 index 0000000000..939e51fe84 --- /dev/null +++ b/cpukit/score/cpu/riscv/include/libcpu/byteorder.h @@ -0,0 +1,31 @@ +/* + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + */ + +#ifndef _LIBCPU_BYTEORDER_H +#define _LIBCPU_BYTEORDER_H + +static inline void st_le32(volatile uint32_t *addr, uint32_t value) +{ + *(addr)=value ; +} + +static inline uint32_t ld_le32(volatile uint32_t *addr) +{ + return(*addr); +} + +static inline void st_le16(volatile uint16_t *addr, uint16_t value) +{ + *(addr)=value ; +} + +static inline uint16_t ld_le16(volatile uint16_t *addr) +{ + return(*addr); +} + + +#endif |