// 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_ */