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cache/mmu: implememnt cache and mmu hal APIs in bootloader

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This commit is contained in:
Armando
2022-02-11 15:30:54 +08:00
parent 8b902739ac
commit c1cbd7bbf6
70 changed files with 2314 additions and 466 deletions
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103
components/hal/esp32c2/include/hal/cache_ll.h Normal file
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/*
* SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
// The LL layer for Cache register operations
#pragma once
#include "soc/extmem_reg.h"
#include "soc/ext_mem_defs.h"
#include "hal/cache_types.h"
#include "hal/assert.h"
#ifdef __cplusplus
extern "C" {
#endif
#define CACHE_LL_DEFAULT_IBUS_MASK CACHE_BUS_IBUS0
#define CACHE_LL_DEFAULT_DBUS_MASK CACHE_BUS_DBUS0
/**
* @brief Get the buses of a particular cache that are mapped to a virtual address range
*
* External virtual address can only be accessed when the involved cache buses are enabled.
* This API is to get the cache buses where the memory region (from `vaddr_start` to `vaddr_start + len`) reside.
*
* @param cache_id cache ID (when l1 cache is per core)
* @param vaddr_start virtual address start
* @param len vaddr length
*/
#if !BOOTLOADER_BUILD
__attribute__((always_inline))
#endif
static inline cache_bus_mask_t cache_ll_l1_get_bus(uint32_t cache_id, uint32_t vaddr_start, uint32_t len)
{
HAL_ASSERT(cache_id == 0);
cache_bus_mask_t mask = 0;
uint32_t vaddr_end = vaddr_start + len;
if (vaddr_start >= IRAM0_CACHE_ADDRESS_LOW && vaddr_end <= IRAM0_CACHE_ADDRESS_HIGH) {
mask |= CACHE_BUS_IBUS0;
} else if (vaddr_start >= DRAM0_CACHE_ADDRESS_LOW && vaddr_end <= DRAM0_CACHE_ADDRESS_HIGH) {
mask |= CACHE_BUS_DBUS0;
} else {
HAL_ASSERT(0); //Out of region
}
return mask;
}
/**
* Enable the Cache Buses
*
* @param cache_id cache ID (when l1 cache is per core)
* @param mask To know which buses should be enabled
*/
#if !BOOTLOADER_BUILD
__attribute__((always_inline))
#endif
static inline void cache_ll_l1_enable_bus(uint32_t cache_id, cache_bus_mask_t mask)
{
HAL_ASSERT(cache_id == 0);
//On esp32c2, only `CACHE_BUS_IBUS0` and `CACHE_BUS_DBUS0` are supported. Use `cache_ll_l1_get_bus()` to get your bus first
HAL_ASSERT((mask & (CACHE_BUS_IBUS1 | CACHE_BUS_IBUS2| CACHE_BUS_DBUS1 | CACHE_BUS_DBUS2)) == 0);
uint32_t ibus_mask = 0;
ibus_mask |= (mask & CACHE_BUS_IBUS0) ? EXTMEM_ICACHE_SHUT_IBUS : 0;
REG_CLR_BIT(EXTMEM_ICACHE_CTRL1_REG, ibus_mask);
uint32_t dbus_mask = 0;
dbus_mask |= (mask & CACHE_BUS_DBUS0) ? EXTMEM_ICACHE_SHUT_DBUS : 0;
REG_CLR_BIT(EXTMEM_ICACHE_CTRL1_REG, dbus_mask);
}
/**
* Disable the Cache Buses
*
* @param cache_id cache ID (when l1 cache is per core)
* @param mask To know which buses should be disabled
*/
__attribute__((always_inline))
static inline void cache_ll_l1_disable_bus(uint32_t cache_id, cache_bus_mask_t mask)
{
HAL_ASSERT(cache_id == 0);
//On esp32c2, only `CACHE_BUS_IBUS0` and `CACHE_BUS_DBUS0` are supported. Use `cache_ll_l1_get_bus()` to get your bus first
HAL_ASSERT((mask & (CACHE_BUS_IBUS1 | CACHE_BUS_IBUS2| CACHE_BUS_DBUS1 | CACHE_BUS_DBUS2)) == 0);
uint32_t ibus_mask = 0;
ibus_mask |= (mask & CACHE_BUS_IBUS0) ? EXTMEM_ICACHE_SHUT_IBUS : 0;
REG_SET_BIT(EXTMEM_ICACHE_CTRL1_REG, ibus_mask);
uint32_t dbus_mask = 0;
dbus_mask |= (mask & CACHE_BUS_DBUS0) ? EXTMEM_ICACHE_SHUT_DBUS : 0;
REG_SET_BIT(EXTMEM_ICACHE_CTRL1_REG, dbus_mask);
}
#ifdef __cplusplus
}
#endif

2
components/hal/esp32c2/include/hal/memprot_ll.h
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@@ -7,7 +7,7 @@
#pragma once
#include "soc/sensitive_reg.h"
#include "soc/cache_memory.h"
#include "soc/ext_mem_defs.h"
#include "hal/assert.h"
#ifdef __cplusplus

153
components/hal/esp32c2/include/hal/mmu_ll.h Normal file
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/*
* SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
// The LL layer for MMU register operations
#pragma once
#include "soc/extmem_reg.h"
#include "soc/ext_mem_defs.h"
#include "hal/assert.h"
#include "hal/mmu_types.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* Get MMU page size
*
* @param mmu_id MMU ID
*
* @return MMU page size code
*/
__attribute__((always_inline))
static inline mmu_page_size_t mmu_ll_get_page_size(uint32_t mmu_id)
{
(void)mmu_id;
uint32_t page_size_code = REG_GET_FIELD(EXTMEM_CACHE_CONF_MISC_REG, EXTMEM_CACHE_MMU_PAGE_SIZE);
return (page_size_code == 0) ? MMU_PAGE_16KB : (page_size_code == 1) ? MMU_PAGE_32KB : MMU_PAGE_64KB;
}
/**
* Set MMU page size
*
* @param size See `mmu_page_size_t`
*/
__attribute__((always_inline))
static inline void mmu_ll_set_page_size(uint32_t mmu_id, mmu_page_size_t size)
{
uint8_t reg_val = (size == MMU_PAGE_16KB) ? 0 : (size == MMU_PAGE_32KB) ? 1 : 2;
REG_SET_FIELD(EXTMEM_CACHE_CONF_MISC_REG, EXTMEM_CACHE_MMU_PAGE_SIZE, reg_val);
}
/**
* Check if the external memory vaddr region is valid
*
* @param mmu_id MMU ID
* @param vaddr_start start of the virtual address
* @param len length, in bytes
*
* @return
* True for valid
*/
__attribute__((always_inline))
static inline bool mmu_ll_check_valid_ext_vaddr_region(uint32_t mmu_id, uint32_t vaddr_start, uint32_t len)
{
(void)mmu_id;
uint32_t vaddr_end = vaddr_start + len;
return (ADDRESS_IN_IRAM0_CACHE(vaddr_start) && ADDRESS_IN_IRAM0_CACHE(vaddr_end)) || (ADDRESS_IN_DRAM0_CACHE(vaddr_start) && ADDRESS_IN_DRAM0_CACHE(vaddr_end));
}
/**
* To get the MMU table entry id to be mapped
*
* @param mmu_id MMU ID
* @param vaddr virtual address to be mapped
*
* @return
* MMU table entry id
*/
__attribute__((always_inline))
static inline uint32_t mmu_ll_get_entry_id(uint32_t mmu_id, uint32_t vaddr)
{
(void)mmu_id;
mmu_page_size_t page_size = mmu_ll_get_page_size(mmu_id);
uint32_t shift_code = 0;
switch (page_size) {
case MMU_PAGE_64KB:
shift_code = 16;
break;
case MMU_PAGE_32KB:
shift_code = 15;
break;
case MMU_PAGE_16KB:
shift_code = 14;
break;
default:
HAL_ASSERT(shift_code);
}
return ((vaddr & MMU_VADDR_MASK) >> shift_code);
}
/**
* Format the paddr to be mappable
*
* @param mmu_id MMU ID
* @param paddr physical address to be mapped
*
* @return
* mmu_val - paddr in MMU table supported format
*/
__attribute__((always_inline))
static inline uint32_t mmu_ll_format_paddr(uint32_t mmu_id, uint32_t paddr)
{
(void)mmu_id;
mmu_page_size_t page_size = mmu_ll_get_page_size(mmu_id);
uint32_t shift_code = 0;
switch (page_size) {
case MMU_PAGE_64KB:
shift_code = 16;
break;
case MMU_PAGE_32KB:
shift_code = 15;
break;
case MMU_PAGE_16KB:
shift_code = 14;
break;
default:
HAL_ASSERT(shift_code);
}
return paddr >> shift_code;
}
/**
* Write to the MMU table to map the virtual memory and the physical memory
*
* @param mmu_id MMU ID
* @param entry_id MMU entry ID
* @param mmu_val Value to be set into an MMU entry, for physical address
* @param target MMU target physical memory.
*/
__attribute__((always_inline))
static inline void mmu_ll_write_entry(uint32_t mmu_id, uint32_t entry_id, uint32_t mmu_val, mmu_target_t target)
{
(void)mmu_id;
HAL_ASSERT(target == MMU_TARGET_FLASH0);
HAL_ASSERT(entry_id < MMU_MAX_ENTRY_NUM);
*(uint32_t *)(DR_REG_MMU_TABLE + entry_id * 4) = mmu_val | MMU_ACCESS_FLASH | MMU_VALID;
}
#ifdef __cplusplus
}
#endif