| /* |
| * Copyright 2021 Intel Corporation |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| #ifndef ZEPHYR_INCLUDE_ARCH_XTENSA_CACHE_H_ |
| #define ZEPHYR_INCLUDE_ARCH_XTENSA_CACHE_H_ |
| |
| #include <xtensa/config/core-isa.h> |
| #include <zephyr/toolchain.h> |
| #include <zephyr/sys/util.h> |
| #include <zephyr/debug/sparse.h> |
| #include <xtensa/hal.h> |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #define Z_DCACHE_MAX (XCHAL_DCACHE_SIZE / XCHAL_DCACHE_WAYS) |
| |
| #if XCHAL_DCACHE_SIZE |
| BUILD_ASSERT(Z_IS_POW2(XCHAL_DCACHE_LINESIZE)); |
| BUILD_ASSERT(Z_IS_POW2(Z_DCACHE_MAX)); |
| #endif |
| |
| #if defined(CONFIG_DCACHE) |
| static ALWAYS_INLINE int arch_dcache_flush_range(void *addr, size_t bytes) |
| { |
| #if XCHAL_DCACHE_SIZE |
| size_t step = XCHAL_DCACHE_LINESIZE; |
| size_t first = ROUND_DOWN(addr, step); |
| size_t last = ROUND_UP(((long)addr) + bytes, step); |
| size_t line; |
| |
| for (line = first; bytes && line < last; line += step) { |
| __asm__ volatile("dhwb %0, 0" :: "r"(line)); |
| } |
| #endif |
| return 0; |
| } |
| |
| static ALWAYS_INLINE int arch_dcache_flush_and_invd_range(void *addr, size_t bytes) |
| { |
| #if XCHAL_DCACHE_SIZE |
| size_t step = XCHAL_DCACHE_LINESIZE; |
| size_t first = ROUND_DOWN(addr, step); |
| size_t last = ROUND_UP(((long)addr) + bytes, step); |
| size_t line; |
| |
| for (line = first; bytes && line < last; line += step) { |
| __asm__ volatile("dhwbi %0, 0" :: "r"(line)); |
| } |
| #endif |
| return 0; |
| } |
| |
| static ALWAYS_INLINE int arch_dcache_invd_range(void *addr, size_t bytes) |
| { |
| #if XCHAL_DCACHE_SIZE |
| size_t step = XCHAL_DCACHE_LINESIZE; |
| size_t first = ROUND_DOWN(addr, step); |
| size_t last = ROUND_UP(((long)addr) + bytes, step); |
| size_t line; |
| |
| for (line = first; bytes && line < last; line += step) { |
| __asm__ volatile("dhi %0, 0" :: "r"(line)); |
| } |
| #endif |
| return 0; |
| } |
| |
| static ALWAYS_INLINE int arch_dcache_invd_all(void) |
| { |
| #if XCHAL_DCACHE_SIZE |
| size_t step = XCHAL_DCACHE_LINESIZE; |
| size_t line; |
| |
| for (line = 0; line < XCHAL_DCACHE_SIZE; line += step) { |
| __asm__ volatile("dii %0, 0" :: "r"(line)); |
| } |
| #endif |
| return 0; |
| } |
| |
| static ALWAYS_INLINE int arch_dcache_flush_all(void) |
| { |
| #if XCHAL_DCACHE_SIZE |
| size_t step = XCHAL_DCACHE_LINESIZE; |
| size_t line; |
| |
| for (line = 0; line < XCHAL_DCACHE_SIZE; line += step) { |
| __asm__ volatile("diwb %0, 0" :: "r"(line)); |
| } |
| #endif |
| return 0; |
| } |
| |
| static ALWAYS_INLINE int arch_dcache_flush_and_invd_all(void) |
| { |
| #if XCHAL_DCACHE_SIZE |
| size_t step = XCHAL_DCACHE_LINESIZE; |
| size_t line; |
| |
| for (line = 0; line < XCHAL_DCACHE_SIZE; line += step) { |
| __asm__ volatile("diwbi %0, 0" :: "r"(line)); |
| } |
| #endif |
| return 0; |
| } |
| |
| static ALWAYS_INLINE void arch_dcache_enable(void) |
| { |
| /* nothing */ |
| } |
| |
| static ALWAYS_INLINE void arch_dcache_disable(void) |
| { |
| /* nothing */ |
| } |
| |
| #endif /* CONFIG_DCACHE */ |
| |
| #if defined(CONFIG_ICACHE) |
| |
| static size_t arch_icache_line_size_get(void) |
| { |
| return -ENOTSUP; |
| } |
| |
| static ALWAYS_INLINE int arch_icache_flush_all(void) |
| { |
| #if XCHAL_ICACHE_SIZE |
| xthal_icache_all_writeback(); |
| #endif |
| return 0; |
| } |
| |
| static ALWAYS_INLINE int arch_icache_invd_all(void) |
| { |
| #if XCHAL_ICACHE_SIZE |
| xthal_icache_all_invalidate(); |
| #endif |
| return 0; |
| } |
| |
| static ALWAYS_INLINE int arch_icache_flush_and_invd_all(void) |
| { |
| return -ENOTSUP; |
| } |
| |
| static ALWAYS_INLINE int arch_icache_flush_range(void *addr, size_t size) |
| { |
| return -ENOTSUP; |
| } |
| |
| static ALWAYS_INLINE int arch_icache_invd_range(void *addr, size_t size) |
| { |
| #if XCHAL_ICACHE_SIZE |
| xthal_icache_region_invalidate(addr, size); |
| #endif |
| return 0; |
| } |
| |
| static ALWAYS_INLINE int arch_icache_flush_and_invd_range(void *addr, size_t size) |
| { |
| return -ENOTSUP; |
| } |
| |
| static ALWAYS_INLINE void arch_icache_enable(void) |
| { |
| /* nothing */ |
| } |
| |
| static ALWAYS_INLINE vid arch_icache_disable(void) |
| { |
| /* nothing */ |
| } |
| |
| #endif /* CONFIG_ICACHE */ |
| |
| |
| |
| #ifdef __cplusplus |
| } /* extern "C" */ |
| #endif |
| |
| #endif /* ZEPHYR_INCLUDE_ARCH_XTENSA_CACHE_H_ */ |