esp-idf/components/esp_rom/include/esp32s2/rom/cache.h

948 wiersze
32 KiB
C
Czysty Wina Historia

This file contains ambiguous Unicode characters!

This file contains ambiguous Unicode characters that may be confused with others in your current locale. If your use case is intentional and legitimate, you can safely ignore this warning. Use the Escape button to highlight these characters.

// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef _ROM_CACHE_H_
#define _ROM_CACHE_H_
#ifdef __cplusplus
extern "C" {
#endif
/** \defgroup cache_apis, cache operation related apis
* @brief cache apis
*/
/** @addtogroup cache_apis
* @{
*/
#define MIN_CACHE_SIZE 8192
#define MAX_CACHE_SIZE 16384
#define MIN_CACHE_WAYS 4
#define MAX_CACHE_WAYS 4
#define MIN_CACHE_LINE_SIZE 16
//normally should be (MAX_CACHE_SIZE / MIN_CACHE_WAYS / MIN_CACHE_LINE_SIZE), however, the items not all in one tag memory block.
#define MAX_TAG_BLOCK_ITEMS (MAX_CACHE_SIZE / 8 / MIN_CACHE_LINE_SIZE)
#define TAG_SIZE 4
#define MAX_TAG_BLOCK_SIZE (MAX_TAG_BLOCK_ITEMS * TAG_SIZE)
#define INVALID_PHY_PAGE 0xffff
#define ESP_CACHE_TEMP_ADDR DROM0_ADDRESS_LOW
#define CACHE_MAX_OPERATION_SIZE BUS_ADDR_SIZE
typedef enum {
CACHE_DCACHE = 0,
CACHE_ICACHE = 1,
} cache_t;
typedef enum {
CACHE_MEMORY_INVALID = 0,
CACHE_MEMORY_ICACHE_LOW = BIT(0),
CACHE_MEMORY_ICACHE_HIGH = BIT(1),
CACHE_MEMORY_DCACHE_LOW = BIT(2),
CACHE_MEMORY_DCACHE_HIGH = BIT(3),
} cache_layout_t;
#define CACHE_SIZE_8KB CACHE_SIZE_HALF
#define CACHE_SIZE_16KB CACHE_SIZE_FULL
typedef enum {
CACHE_SIZE_HALF = 0, /*!< 8KB for icache and dcache */
CACHE_SIZE_FULL = 1, /*!< 16KB for icache and dcache */
} cache_size_t;
typedef enum {
CACHE_4WAYS_ASSOC = 0, /*!< 4 way associated cache */
} cache_ways_t;
typedef enum {
CACHE_LINE_SIZE_16B = 0, /*!< 16 Byte cache line size */
CACHE_LINE_SIZE_32B = 1, /*!< 32 Byte cache line size */
} cache_line_size_t;
typedef enum {
CACHE_AUTOLOAD_POSITIVE = 0, /*!< cache autoload step is positive */
CACHE_AUTOLOAD_NEGATIVE = 1, /*!< cache autoload step is negative */
} cache_autoload_order_t;
#define CACHE_AUTOLOAD_STEP(i) ((i) - 1)
typedef enum {
CACHE_AUTOLOAD_MISS_TRIGGER = 0, /*!< autoload only triggered by cache miss */
CACHE_AUTOLOAD_HIT_TRIGGER = 1, /*!< autoload only triggered by cache hit */
CACHE_AUTOLOAD_BOTH_TRIGGER = 2, /*!< autoload triggered both by cache miss and hit */
} cache_autoload_trigger_t;
struct cache_mode {
uint32_t cache_size; /*!< cache size in byte */
uint16_t cache_line_size; /*!< cache line size in byte */
uint8_t cache_ways; /*!< cache ways, always 4 */
uint8_t icache; /*!< the cache index, 0 for dcache, 1 for icache */
};
struct tag_item {
uint32_t dirty:1; /*!< the cache line value is dirty or not */
uint32_t tag:14; /*!< the tag is the high part of the cache address, however is only 16MB range, and with out low part */
uint32_t valid:1; /*!< the tag item is valid or not */
uint32_t fifo_cnt:3; /*!< fifo cnt, 0 ~ 3 for 4 ways cache, 0 ~ 7 for 8 ways cache */
uint32_t lock:1; /*!< the cache line is locked or not */
uint32_t attr:3; /*!< the attribute of the external memory physical address */
uint32_t access:1; /*!< software accessable, used by hardware */
uint32_t reserved:8;
};
struct autoload_config {
uint8_t order; /*!< autoload step is positive or negative */
uint8_t trigger; /*!< autoload trigger */
uint8_t ena0; /*!< autoload region0 enable */
uint8_t ena1; /*!< autoload region1 enable */
uint32_t addr0; /*!< autoload region0 start address */
uint32_t size0; /*!< autoload region0 size */
uint32_t addr1; /*!< autoload region1 start address */
uint32_t size1; /*!< autoload region1 size */
};
struct tag_group_info {
struct cache_mode mode; /*!< cache and cache mode */
uint32_t filter_addr; /*!< the address that used to generate the struct */
uint32_t vaddr_offset; /*!< virtual address offset of the cache ways */
uint32_t tag_addr[MAX_CACHE_WAYS]; /*!< tag memory address, only [0~mode.ways-1] is valid to use */
uint32_t cache_memory_offset[MAX_CACHE_WAYS]; /*!< cache memory address, only [0~mode.ways-1] is valid to use */
};
struct lock_config {
uint32_t addr; /*!< manual lock address*/
uint16_t size; /*!< manual lock size*/
uint16_t group; /*!< manual lock group, 0 or 1*/
};
#define ESP_ROM_ERR_INVALID_ARG 1
#define MMU_SET_ADDR_ALIGNED_ERROR 2
#define MMU_SET_PASE_SIZE_ERROR 3
#define MMU_SET_VADDR_OUT_RANGE 4
/**
* @brief Initialise cache mmu, mark all entries as invalid.
* Please do not call this function in your SDK application.
*
* @param None
*
* @return None
*/
void Cache_MMU_Init(void);
/**
* @brief Set ICache mmu mapping.
* Please do not call this function in your SDK application.
*
* @param uint32_t ext_ram : DPORT_MMU_ACCESS_FLASH for flash, DPORT_MMU_ACCESS_SPIRAM for spiram, DPORT_MMU_INVALID for invalid.
*
* @param uint32_t vaddr : virtual address in CPU address space.
* Can be Iram0,Iram1,Irom0,Drom0 and AHB buses address.
* Should be aligned by psize.
*
* @param uint32_t paddr : physical address in external memory.
* Should be aligned by psize.
*
* @param uint32_t psize : page size of ICache, in kilobytes. Should be 64 here.
*
* @param uint32_t num : pages to be set.
*
* @param uint32_t fixed : 0 for physical pages grow with virtual pages, other for virtual pages map to same physical page.
*
* @return uint32_t: error status
* 0 : mmu set success
* 2 : vaddr or paddr is not aligned
* 3 : psize error
* 4 : vaddr is out of range
*/
int Cache_Ibus_MMU_Set(uint32_t ext_ram, uint32_t vaddr, uint32_t paddr, uint32_t psize, uint32_t num, uint32_t fixed);
/**
* @brief Set DCache mmu mapping.
* Please do not call this function in your SDK application.
*
* @param uint32_t ext_ram : DPORT_MMU_ACCESS_FLASH for flash, DPORT_MMU_ACCESS_SPIRAM for spiram, DPORT_MMU_INVALID for invalid.
*
* @param uint32_t vaddr : virtual address in CPU address space.
* Can be DRam0, DRam1, DRom0, DPort and AHB buses address.
* Should be aligned by psize.
*
* @param uint32_t paddr : physical address in external memory.
* Should be aligned by psize.
*
* @param uint32_t psize : page size of DCache, in kilobytes. Should be 64 here.
*
* @param uint32_t num : pages to be set.
* @param uint32_t fixed : 0 for physical pages grow with virtual pages, other for virtual pages map to same physical page.
*
* @return uint32_t: error status
* 0 : mmu set success
* 2 : vaddr or paddr is not aligned
* 3 : psize error
* 4 : vaddr is out of range
*/
int Cache_Dbus_MMU_Set(uint32_t ext_ram, uint32_t vaddr, uint32_t paddr, uint32_t psize, uint32_t num, uint32_t fixed);
/**
* @brief Count the pages in the bus room address which map to Flash.
* Please do not call this function in your SDK application.
*
* @param uint32_t bus : the bus to count with.
*
* @param uint32_t * page0_mapped : value should be initial by user, 0 for not mapped, other for mapped count.
*
* return uint32_t : the number of pages which map to Flash.
*/
uint32_t Cache_Count_Flash_Pages(uint32_t bus, uint32_t * page0_mapped);
/**
* @brief Copy Instruction or rodata from Flash to SPIRAM, and remap to SPIRAM.
* Please do not call this function in your SDK application.
*
* @param uint32_t bus : the bus which need to copy to SPIRAM.
*
* @param uint32_t bus_start_addr : the start virtual address for the bus.
*
* @param uint32_t start_page : the start (64KB) page number in SPIRAM.
*
* @param uint32_t * page0_page : the flash page0 in SPIRAM page number, 0xffff for invalid.
*
* return uint32_t : the next start page number for SPIRAM not mapped.
*/
uint32_t Cache_Flash_To_SPIRAM_Copy(uint32_t bus, uint32_t bus_start_addr, uint32_t start_page, uint32_t * page0_page);
/**
* @brief allocate memory to used by ICache and DCache.
* Please do not call this function in your SDK application.
*
* @param cache_layout_t sram0_layout : the usage of first 8KB internal memory block, can be CACHE_MEMORY_INVALID, CACHE_MEMORY_ICACHE_LOW, CACHE_MEMORY_ICACHE_HIGH, CACHE_MEMORY_DCACHE_LOW and CACHE_MEMORY_DCACHE_HIGH
*
* @param cache_layout_t sram1_layout : the usage of second 8KB internal memory block
*
* @param cache_layout_t sram2_layout : the usage of third 8KB internal memory block
*
* @param cache_layout_t sram3_layout : the usage of forth 8KB internal memory block
*
* return none
*/
void Cache_Allocate_SRAM(cache_layout_t sram0_layout, cache_layout_t sram1_layout, cache_layout_t sram2_layout, cache_layout_t sram3_layout);
/**
* @brief Get cache mode of ICache or DCache.
* Please do not call this function in your SDK application.
*
* @param struct cache_mode * mode : the pointer of cache mode struct, caller should set the icache field
*
* return none
*/
void Cache_Get_Mode(struct cache_mode * mode);
/**
* @brief set ICache modes: cache size, associate ways and cache line size.
* Please do not call this function in your SDK application.
*
* @param cache_size_t cache_size : the cache size, can be CACHE_SIZE_HALF and CACHE_SIZE_FULL
*
* @param cache_ways_t ways : the associate ways of cache, can only be CACHE_4WAYS_ASSOC
*
* @param cache_line_size_t cache_line_size : the cache line size, can be CACHE_LINE_SIZE_16B, CACHE_LINE_SIZE_32B
*
* return none
*/
void Cache_Set_ICache_Mode(cache_size_t cache_size, cache_ways_t ways, cache_line_size_t cache_line_size);
/**
* @brief set DCache modes: cache size, associate ways and cache line size.
* Please do not call this function in your SDK application.
*
* @param cache_size_t cache_size : the cache size, can be CACHE_SIZE_HALF and CACHE_SIZE_FULL
*
* @param cache_ways_t ways : the associate ways of cache, can only be CACHE_4WAYS_ASSOC
*
* @param cache_line_size_t cache_line_size : the cache line size, can be CACHE_LINE_SIZE_16B, CACHE_LINE_SIZE_32B
*
* return none
*/
void Cache_Set_DCache_Mode(cache_size_t cache_size, cache_ways_t ways, cache_line_size_t cache_line_size);
/**
* @brief check if the address is accessed through ICache.
* Please do not call this function in your SDK application.
*
* @param uint32_t addr : the address to check.
*
* @return 1 if the address is accessed through ICache, 0 if not.
*/
uint32_t Cache_Address_Through_ICache(uint32_t addr);
/**
* @brief check if the address is accessed through DCache.
* Please do not call this function in your SDK application.
*
* @param uint32_t addr : the address to check.
*
* @return 1 if the address is accessed through DCache, 0 if not.
*/
uint32_t Cache_Address_Through_DCache(uint32_t addr);
/**
* @brief Invalidate the cache items for ICache.
* Operation will be done CACHE_LINE_SIZE aligned.
* If the region is not in ICache addr room, nothing will be done.
* Please do not call this function in your SDK application.
*
* @param uint32_t addr: start address to invalidate
*
* @param uint32_t items: cache lines to invalidate, items * cache_line_size should not exceed the bus address size(4MB)
*
* @return None
*/
void Cache_Invalidate_ICache_Items(uint32_t addr, uint32_t items);
/**
* @brief Invalidate the cache items for DCache.
* Operation will be done CACHE_LINE_SIZE aligned.
* If the region is not in DCache addr room, nothing will be done.
* Please do not call this function in your SDK application.
*
* @param uint32_t addr: start address to invalidate
*
* @param uint32_t items: cache lines to invalidate, items * cache_line_size should not exceed the bus address size(4MB)
*
* @return None
*/
void Cache_Invalidate_DCache_Items(uint32_t addr, uint32_t items);
/**
* @brief Clean the dirty bit of cache Items of DCache.
* Operation will be done CACHE_LINE_SIZE aligned.
* If the region is not in DCache addr room, nothing will be done.
* Please do not call this function in your SDK application.
*
* @param uint32_t addr: start address to Clean
*
* @param uint32_t items: cache lines to invalidate, items * cache_line_size should not exceed the bus address size(4MB)
*
* @return None
*/
void Cache_Clean_Items(uint32_t addr, uint32_t items);
/**
* @brief Write back the cache items of DCache.
* Operation will be done CACHE_LINE_SIZE aligned.
* If the region is not in DCache addr room, nothing will be done.
* Please do not call this function in your SDK application.
*
* @param uint32_t addr: start address to write back
*
* @param uint32_t items: cache lines to invalidate, items * cache_line_size should not exceed the bus address size(4MB)
*
* @return None
*/
void Cache_WriteBack_Items(uint32_t addr, uint32_t items);
/**
* @brief Invalidate the Cache items in the region from ICache or DCache.
* If the region is not in Cache addr room, nothing will be done.
* Please do not call this function in your SDK application.
*
* @param uint32_t addr : invalidated region start address.
*
* @param uint32_t size : invalidated region size.
*
* @return 0 for success
* 1 for invalid argument
*/
int Cache_Invalidate_Addr(uint32_t addr, uint32_t size);
/**
* @brief Clean the dirty bit of Cache items in the region from DCache.
* If the region is not in DCache addr room, nothing will be done.
* Please do not call this function in your SDK application.
*
* @param uint32_t addr : cleaned region start address.
*
* @param uint32_t size : cleaned region size.
*
* @return 0 for success
* 1 for invalid argument
*/
int Cache_Clean_Addr(uint32_t addr, uint32_t size);
/**
* @brief Writeback the Cache items(also clean the dirty bit) in the region from DCache.
* If the region is not in DCache addr room, nothing will be done.
* Please do not call this function in your SDK application.
*
* @param uint32_t addr : writeback region start address.
*
* @param uint32_t size : writeback region size.
*
* @return 0 for success
* 1 for invalid argument
*/
int Cache_WriteBack_Addr(uint32_t addr, uint32_t size);
/**
* @brief Invalidate all cache items in ICache.
* Please do not call this function in your SDK application.
*
* @param None
*
* @return None
*/
void Cache_Invalidate_ICache_All(void);
/**
* @brief Invalidate all cache items in DCache.
* Please do not call this function in your SDK application.
*
* @param None
*
* @return None
*/
void Cache_Invalidate_DCache_All(void);
/**
* @brief Clean the dirty bit of all cache items in DCache.
* Please do not call this function in your SDK application.
*
* @param None
*
* @return None
*/
void Cache_Clean_All(void);
/**
* @brief WriteBack all cache items in DCache.
* Please do not call this function in your SDK application.
*
* @param None
*
* @return None
*/
void Cache_WriteBack_All(void);
/**
* @brief Mask all buses through ICache and DCache.
* Please do not call this function in your SDK application.
*
* @param None
*
* @return None
*/
void Cache_Mask_All(void);
/**
* @brief UnMask DRom0 bus through ICache.
* Please do not call this function in your SDK application.
*
* @param None
*
* @return None
*/
void Cache_UnMask_Drom0(void);
/**
* @brief Suspend ICache auto preload operation, then you can resume it after some ICache operations.
* Please do not call this function in your SDK application.
*
* @param None
*
* @return uint32_t : 0 for ICache not auto preload before suspend.
*/
uint32_t Cache_Suspend_ICache_Autoload(void);
/**
* @brief Resume ICache auto preload operation after some ICache operations.
* Please do not call this function in your SDK application.
*
* @param uint32_t autoload : 0 for ICache not auto preload before suspend.
*
* @return None.
*/
void Cache_Resume_ICache_Autoload(uint32_t autoload);
/**
* @brief Suspend DCache auto preload operation, then you can resume it after some DCache operations.
* Please do not call this function in your SDK application.
*
* @param None
*
* @return uint32_t : 0 for DCache not auto preload before suspend.
*/
uint32_t Cache_Suspend_DCache_Autoload(void);
/**
* @brief Resume DCache auto preload operation after some DCache operations.
* Please do not call this function in your SDK application.
*
* @param uint32_t autoload : 0 for DCache not auto preload before suspend.
*
* @return None.
*/
void Cache_Resume_DCache_Autoload(uint32_t autoload);
/**
* @brief Start an ICache manual preload, will suspend auto preload of ICache.
* Please do not call this function in your SDK application.
*
* @param uint32_t addr : start address of the preload region.
*
* @param uint32_t size : size of the preload region, should not exceed the size of ICache.
*
* @param uint32_t order : the preload order, 0 for positive, other for negative
*
* @return uint32_t : 0 for ICache not auto preload before manual preload.
*/
uint32_t Cache_Start_ICache_Preload(uint32_t addr, uint32_t size, uint32_t order);
/**
* @brief Return if the ICache manual preload done.
* Please do not call this function in your SDK application.
*
* @param None
*
* @return uint32_t : 0 for ICache manual preload not done.
*/
uint32_t Cache_ICache_Preload_Done(void);
/**
* @brief End the ICache manual preload to resume auto preload of ICache.
* Please do not call this function in your SDK application.
*
* @param uint32_t autoload : 0 for ICache not auto preload before manual preload.
*
* @return None
*/
void Cache_End_ICache_Preload(uint32_t autoload);
/**
* @brief Start an DCache manual preload, will suspend auto preload of DCache.
* Please do not call this function in your SDK application.
*
* @param uint32_t addr : start address of the preload region.
*
* @param uint32_t size : size of the preload region, should not exceed the size of DCache.
*
* @param uint32_t order : the preload order, 0 for positive, other for negative
*
* @return uint32_t : 0 for DCache not auto preload before manual preload.
*/
uint32_t Cache_Start_DCache_Preload(uint32_t addr, uint32_t size, uint32_t order);
/**
* @brief Return if the DCache manual preload done.
* Please do not call this function in your SDK application.
*
* @param None
*
* @return uint32_t : 0 for DCache manual preload not done.
*/
uint32_t Cache_DCache_Preload_Done(void);
/**
* @brief End the DCache manual preload to resume auto preload of DCache.
* Please do not call this function in your SDK application.
*
* @param uint32_t autoload : 0 for DCache not auto preload before manual preload.
*
* @return None
*/
void Cache_End_DCache_Preload(uint32_t autoload);
/**
* @brief Config autoload parameters of ICache.
* Please do not call this function in your SDK application.
*
* @param struct autoload_config * config : autoload parameters.
*
* @return None
*/
void Cache_Config_ICache_Autoload(const struct autoload_config * config);
/**
* @brief Enable auto preload for ICache.
* Please do not call this function in your SDK application.
*
* @param None
*
* @return None
*/
void Cache_Enable_ICache_Autoload(void);
/**
* @brief Disable auto preload for ICache.
* Please do not call this function in your SDK application.
*
* @param None
*
* @return None
*/
void Cache_Disable_ICache_Autoload(void);
/**
* @brief Config autoload parameters of DCache.
* Please do not call this function in your SDK application.
*
* @param struct autoload_config * config : autoload parameters.
*
* @return None
*/
void Cache_Config_DCache_Autoload(const struct autoload_config * config);
/**
* @brief Enable auto preload for DCache.
* Please do not call this function in your SDK application.
*
* @param None
*
* @return None
*/
void Cache_Enable_DCache_Autoload(void);
/**
* @brief Disable auto preload for DCache.
* Please do not call this function in your SDK application.
*
* @param None
*
* @return None
*/
void Cache_Disable_DCache_Autoload(void);
/**
* @brief Config a group of prelock parameters of ICache.
* Please do not call this function in your SDK application.
*
* @param struct lock_config * config : a group of lock parameters.
*
* @return None
*/
void Cache_Enable_ICache_PreLock(const struct lock_config *config);
/**
* @brief Disable a group of prelock parameters for ICache.
* However, the locked data will not be released.
* Please do not call this function in your SDK application.
*
* @param uint16_t group : 0 for group0, 1 for group1.
*
* @return None
*/
void Cache_Disable_ICache_PreLock(uint16_t group);
/**
* @brief Lock the cache items for ICache.
* Operation will be done CACHE_LINE_SIZE aligned.
* If the region is not in ICache addr room, nothing will be done.
* Please do not call this function in your SDK application.
*
* @param uint32_t addr: start address to lock
*
* @param uint32_t items: cache lines to lock, items * cache_line_size should not exceed the bus address size(4MB)
*
* @return None
*/
void Cache_Lock_ICache_Items(uint32_t addr, uint32_t items);
/**
* @brief Unlock the cache items for ICache.
* Operation will be done CACHE_LINE_SIZE aligned.
* If the region is not in ICache addr room, nothing will be done.
* Please do not call this function in your SDK application.
*
* @param uint32_t addr: start address to unlock
*
* @param uint32_t items: cache lines to unlock, items * cache_line_size should not exceed the bus address size(4MB)
*
* @return None
*/
void Cache_Unlock_ICache_Items(uint32_t addr, uint32_t items);
/**
* @brief Config a group of prelock parameters of DCache.
* Please do not call this function in your SDK application.
*
* @param struct lock_config * config : a group of lock parameters.
*
* @return None
*/
void Cache_Enable_DCache_PreLock(const struct lock_config *config);
/**
* @brief Disable a group of prelock parameters for DCache.
* However, the locked data will not be released.
* Please do not call this function in your SDK application.
*
* @param uint16_t group : 0 for group0, 1 for group1.
*
* @return None
*/
void Cache_Disable_DCache_PreLock(uint16_t group);
/**
* @brief Lock the cache items for DCache.
* Operation will be done CACHE_LINE_SIZE aligned.
* If the region is not in DCache addr room, nothing will be done.
* Please do not call this function in your SDK application.
*
* @param uint32_t addr: start address to lock
*
* @param uint32_t items: cache lines to lock, items * cache_line_size should not exceed the bus address size(4MB)
*
* @return None
*/
void Cache_Lock_DCache_Items(uint32_t addr, uint32_t items);
/**
* @brief Unlock the cache items for DCache.
* Operation will be done CACHE_LINE_SIZE aligned.
* If the region is not in DCache addr room, nothing will be done.
* Please do not call this function in your SDK application.
*
* @param uint32_t addr: start address to unlock
*
* @param uint32_t items: cache lines to unlock, items * cache_line_size should not exceed the bus address size(4MB)
*
* @return None
*/
void Cache_Unlock_DCache_Items(uint32_t addr, uint32_t items);
/**
* @brief Lock the cache items in tag memory for ICache or DCache.
* Please do not call this function in your SDK application.
*
* @param uint32_t addr : start address of lock region.
*
* @param uint32_t size : size of lock region.
*
* @return 0 for success
* 1 for invalid argument
*/
int Cache_Lock_Addr(uint32_t addr, uint32_t size);
/**
* @brief Unlock the cache items in tag memory for ICache or DCache.
* Please do not call this function in your SDK application.
*
* @param uint32_t addr : start address of unlock region.
*
* @param uint32_t size : size of unlock region.
*
* @return 0 for success
* 1 for invalid argument
*/
int Cache_Unlock_Addr(uint32_t addr, uint32_t size);
/**
* @brief Disable ICache access for the cpu.
* This operation will make all ICache tag memory invalid, CPU can't access ICache, ICache will keep idle.
* Please do not call this function in your SDK application.
*
* @return uint32_t : auto preload enabled before
*/
uint32_t Cache_Disable_ICache(void);
/**
* @brief Enable ICache access for the cpu.
* Please do not call this function in your SDK application.
*
* @param uint32_t autoload : ICache will preload then.
*
* @return None
*/
void Cache_Enable_ICache(uint32_t autoload);
/**
* @brief Disable DCache access for the cpu.
* This operation will make all DCache tag memory invalid, CPU can't access DCache, DCache will keep idle
* Please do not call this function in your SDK application.
*
* @return uint32_t : auto preload enabled before
*/
uint32_t Cache_Disable_DCache(void);
/**
* @brief Enable DCache access for the cpu.
* Please do not call this function in your SDK application.
*
* @param uint32_t autoload : DCache will preload then.
*
* @return None
*/
void Cache_Enable_DCache(uint32_t autoload);
/**
* @brief Suspend ICache access for the cpu.
* The ICache tag memory is still there, CPU can't access ICache, ICache will keep idle.
* Please do not change MMU, cache mode or tag memory(tag memory can be changed in some special case).
* Please do not call this function in your SDK application.
*
* @param None
*
* @return uint32_t : auto preload enabled before
*/
uint32_t Cache_Suspend_ICache(void);
/**
* @brief Resume ICache access for the cpu.
* Please do not call this function in your SDK application.
*
* @param uint32_t autoload : ICache will preload then.
*
* @return None
*/
void Cache_Resume_ICache(uint32_t autoload);
/**
* @brief Suspend DCache access for the cpu.
* The ICache tag memory is still there, CPU can't access DCache, DCache will keep idle.
× Please do not change MMU, cache mode or tag memory(tag memory can be changed in some special case).
* Please do not call this function in your SDK application.
*
* @param None
*
* @return uint32_t : auto preload enabled before
*/
uint32_t Cache_Suspend_DCache(void);
/**
* @brief Resume DCache access for the cpu.
* Please do not call this function in your SDK application.
*
* @param uint32_t autoload : DCache will preload then.
*
* @return None
*/
void Cache_Resume_DCache(uint32_t autoload);
/**
* @brief Get ICache cache line size
*
* @param None
*
* @return uint32_t: 16, 32 Byte
*/
uint32_t Cache_Get_ICache_Line_Size(void);
/**
* @brief Get DCache cache line size
*
* @param None
*
* @return uint32_t: 16, 32 Byte
*/
uint32_t Cache_Get_DCache_Line_Size(void);
/**
* @brief Set default mode from boot, 8KB ICache, 16Byte cache line size.
*
* @param None
*
* @return None
*/
void Cache_Set_Default_Mode(void);
/**
* @brief Set default mode from boot, 8KB DCache, 16Byte cache line size.
*
* @param None
*
* @return None
*/
void Cache_Enable_Defalut_DCache_Mode(void);
/**
* @brief Travel tag memory to run a call back function.
* ICache and DCache are suspend when doing this.
* The callback will get the parameter tag_group_info, which will include a group of tag memory addresses and cache memory addresses.
* Please do not call this function in your SDK application.
*
* @param struct cache_mode * mode : the cache to check and the cache mode.
*
* @param uint32_t filter_addr : only the cache lines which may include the filter_address will be returned to the call back function.
* 0 for do not filter, all cache lines will be returned.
*
* @param void (* process)(struct tag_group_info *) : call back function, which may be called many times, a group(the addresses in the group are in the same position in the cache ways) a time.
*
* @return None
*/
void Cache_Travel_Tag_Memory(struct cache_mode * mode, uint32_t filter_addr, void (* process)(struct tag_group_info *));
/**
* @brief Get the virtual address from cache mode, cache tag and the virtual address offset of cache ways.
* Please do not call this function in your SDK application.
*
* @param struct cache_mode * mode : the cache to calculate the virtual address and the cache mode.
*
* @param uint32_t tag : the tag part fo a tag item, 12-14 bits.
*
* @param uint32_t addr_offset : the virtual address offset of the cache ways.
*
* @return uint32_t : the virtual address.
*/
uint32_t Cache_Get_Virtual_Addr(struct cache_mode *mode, uint32_t tag, uint32_t vaddr_offset);
/**
* @brief Get cache memory block base address.
* Please do not call this function in your SDK application.
*
* @param uint32_t icache : 0 for dcache, other for icache.
*
* @param uint32_t high : 0 for low part block, 1 for high part block.
*
* @return uint32_t : the cache memory block base address, 0 if the block not used.
*/
uint32_t Cache_Get_Memory_BaseAddr(uint32_t icache, uint32_t high);
/**
* @brief Get the cache memory address from cache mode, cache memory offset and the virtual address offset of cache ways.
* Please do not call this function in your SDK application.
*
* @param struct cache_mode * mode : the cache to calculate the virtual address and the cache mode.
*
* @param uint32_t cache_memory_offset : the cache memory offset of the whole cache (ICache or DCache) for the cache line.
*
* @param uint32_t addr_offset : the virtual address offset of the cache ways.
*
* @return uint32_t : the virtual address.
*/
uint32_t Cache_Get_Memory_Addr(struct cache_mode *mode, uint32_t cache_memory_offset, uint32_t vaddr_offset);
/**
* @brief Get the cache memory value by DRAM address.
* Please do not call this function in your SDK application.
*
* @param uint32_t cache_memory_addr : DRAM address for the cache memory.
*
* @return uint32_t : the word value of the address.
*/
uint32_t Cache_Get_Memory_value(uint32_t cache_memory_addr);
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* _ROM_CACHE_H_ */