Mirrors/unleashed-firmware
2
0
Fork 0
mirror of https://github.com/DarkFlippers/unleashed-firmware synced 2024-11-10 06:54:19 +00:00
Code Issues Projects Releases Packages Wiki Activity

Core2, SRAM2: provide safety gap (#2754)

Browse source 
* Core2, SRAM2: use ob, provide safety gap
* thread: comment about critical section and scheduler state
This commit is contained in:
Sergey Gavrilov 2023-06-09 03:49:26 -07:00 committed by GitHub
parent bff5921266
commit 62939dd28b
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
2 changed files with 44 additions and 40 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

32
firmware/targets/f7/furi_hal/furi_hal_memory.c
View file

@ -4,6 +4,9 @@
#define TAG "FuriHalMemory" #define TAG "FuriHalMemory"
// STM(TM) Copro(TM) bug(TM) workaround size
#define RAM2B_COPRO_GAP_SIZE_KB 2
typedef enum { typedef enum {
SRAM_A, SRAM_A,
SRAM_B, SRAM_B,
@ -30,19 +33,17 @@ void furi_hal_memory_init() {
return; return;
} }
if(!ble_glue_wait_for_c2_start(FURI_HAL_BT_C2_START_TIMEOUT)) {
FURI_LOG_E(TAG, "C2 start timeout");
return;
}
FuriHalMemory* memory = malloc(sizeof(FuriHalMemory)); FuriHalMemory* memory = malloc(sizeof(FuriHalMemory));
const BleGlueC2Info* c2_ver = ble_glue_get_c2_info(); uint32_t sbrsa = (FLASH->SRRVR & FLASH_SRRVR_SBRSA_Msk) >> FLASH_SRRVR_SBRSA_Pos;
uint32_t snbrsa = (FLASH->SRRVR & FLASH_SRRVR_SNBRSA_Msk) >> FLASH_SRRVR_SNBRSA_Pos;
if(c2_ver->mode == BleGlueC2ModeStack) {
uint32_t sram2a_busy_size = (uint32_t)&__sram2a_free__ - (uint32_t)&__sram2a_start__; uint32_t sram2a_busy_size = (uint32_t)&__sram2a_free__ - (uint32_t)&__sram2a_start__;
uint32_t sram2a_unprotected_size = (32 - c2_ver->MemorySizeSram2A) * 1024; uint32_t sram2a_unprotected_size = (sbrsa)*1024;
uint32_t sram2b_unprotected_size = (32 - c2_ver->MemorySizeSram2B) * 1024; uint32_t sram2b_unprotected_size = (snbrsa)*1024;
// STM(TM) Copro(TM) bug(TM) workaround
sram2b_unprotected_size -= 1024 * RAM2B_COPRO_GAP_SIZE_KB;
memory->region[SRAM_A].start = (uint8_t*)&__sram2a_free__; memory->region[SRAM_A].start = (uint8_t*)&__sram2a_free__;
memory->region[SRAM_B].start = (uint8_t*)&__sram2b_start__; memory->region[SRAM_B].start = (uint8_t*)&__sram2b_start__;
@ -74,10 +75,6 @@ void furi_hal_memory_init() {
free(memory); free(memory);
FURI_LOG_E(TAG, "No SRAM2 available"); FURI_LOG_E(TAG, "No SRAM2 available");
} }
} else {
free(memory);
FURI_LOG_E(TAG, "No Core2 available");
}
} }
void* furi_hal_memory_alloc(size_t size) { void* furi_hal_memory_alloc(size_t size) {
@ -89,15 +86,20 @@ void* furi_hal_memory_alloc(size_t size) {
return NULL; return NULL;
} }
void* allocated_memory = NULL;
FURI_CRITICAL_ENTER();
for(int i = 0; i < SRAM_MAX; i++) { for(int i = 0; i < SRAM_MAX; i++) {
if(furi_hal_memory->region[i].size >= size) { if(furi_hal_memory->region[i].size >= size) {
void* ptr = furi_hal_memory->region[i].start; void* ptr = furi_hal_memory->region[i].start;
furi_hal_memory->region[i].start += size; furi_hal_memory->region[i].start += size;
furi_hal_memory->region[i].size -= size; furi_hal_memory->region[i].size -= size;
return ptr; allocated_memory = ptr;
break;
} }
} }
return NULL; FURI_CRITICAL_EXIT();
return allocated_memory;
} }
size_t furi_hal_memory_get_free() { size_t furi_hal_memory_get_free() {

2
furi/core/thread.c
View file

@ -56,6 +56,8 @@ static int32_t __furi_thread_stdout_flush(FuriThread* thread);
/** Catch threads that are trying to exit wrong way */ /** Catch threads that are trying to exit wrong way */
__attribute__((__noreturn__)) void furi_thread_catch() { //-V1082 __attribute__((__noreturn__)) void furi_thread_catch() { //-V1082
// If you're here it means you're probably doing something wrong
// with critical sections or with scheduler state
asm volatile("nop"); // extra magic asm volatile("nop"); // extra magic
furi_crash("You are doing it wrong"); //-V779 furi_crash("You are doing it wrong"); //-V779
__builtin_unreachable(); __builtin_unreachable();