REFACTOR: Moving code sections to platform (#14509)

* REFACTOR: Moving code sections to platform

* Correct build error (FAST_CODE_PREF redefined)

* Re-ordered

* Updated comment (as per @ledvinap)

src/main/target/common_post.h

@@ -49,41 +49,45 @@
 #define DEFAULT_AUX_CHANNEL_COUNT       6
 #endif
 
-#ifdef USE_ITCM_RAM
-#if defined(ITCM_RAM_OPTIMISATION) && !defined(DEBUG)
-#define FAST_CODE                   __attribute__((section(".tcm_code"))) __attribute__((optimize(ITCM_RAM_OPTIMISATION)))
-#else
-#define FAST_CODE                   __attribute__((section(".tcm_code")))
-#endif
-#ifndef FAST_CODE_PREF
-#define FAST_CODE_PREF              FAST_CODE
-// If a particular target is short of ITCM RAM, defining FAST_CODE_PREF in the target.h file will
-// cause functions decorated FAST_CODE_PREF to *not* go into ITCM RAM
-// but if FAST_CODE_PREF is not defined for the target, FAST_CODE_PREF is an alias to FAST_CODE, and
-// functions decorated with FAST_CODE_PREF *will* go into ITCM RAM.
-#endif
-
-#define FAST_CODE_NOINLINE          NOINLINE
-
-#else
+#ifndef FAST_CODE
 #define FAST_CODE
-#define FAST_CODE_PREF
-#define FAST_CODE_NOINLINE
-#endif // USE_ITCM_RAM
+#endif
 
-#ifdef USE_CCM_CODE
-#define CCM_CODE                    __attribute__((section(".ccm_code")))
-#else
+#ifndef FAST_CODE_PREF
+#define FAST_CODE_PREF  FAST_CODE
+#endif
+
+#ifndef FAST_CODE_NOINLINE
+#define FAST_CODE_NOINLINE
+#endif
+
+#ifndef CCM_CODE
 #define CCM_CODE
 #endif
 
-#ifdef USE_FAST_DATA
-#define FAST_DATA_ZERO_INIT         __attribute__ ((section(".fastram_bss"), aligned(4)))
-#define FAST_DATA                   __attribute__ ((section(".fastram_data"), aligned(4)))
-#else
-#define FAST_DATA_ZERO_INIT
+#ifndef FAST_DATA
 #define FAST_DATA
-#endif // USE_FAST_DATA
+#endif
+
+#ifndef FAST_DATA_ZERO_INIT
+#define FAST_DATA_ZERO_INIT
+#endif
+
+#ifndef MMFLASH_CODE
+#define MMFLASH_CODE
+#endif
+
+#ifndef MMFLASH_CODE_NOINLINE
+#define MMFLASH_CODE_NOINLINE
+#endif
+
+#ifndef MMFLASH_DATA
+#define MMFLASH_DATA
+#endif
+
+#ifndef MMFLASH_DATA_ZERO_INIT
+#define MMFLASH_DATA_ZERO_INIT
+#endif
 
 /*
     BEGIN HARDWARE INCLUSIONS
@@ -630,33 +634,6 @@ extern struct linker_symbol __config_start;   // configured via linker script wh
 extern struct linker_symbol __config_end;
 #endif
 
-#if defined(USE_EXST) && !defined(RAMBASED)
-#define USE_FLASH_BOOT_LOADER
-#endif
-
-#if defined(USE_FLASH_MEMORY_MAPPED)
-#if !defined(USE_RAM_CODE)
-#define USE_RAM_CODE
-#endif
-
-#define MMFLASH_CODE RAM_CODE
-#define MMFLASH_CODE_NOINLINE RAM_CODE NOINLINE
-
-#define MMFLASH_DATA FAST_DATA
-#define MMFLASH_DATA_ZERO_INIT FAST_DATA_ZERO_INIT
-#else
-#define MMFLASH_CODE
-#define MMFLASH_CODE_NOINLINE
-#define MMFLASH_DATA
-#define MMFLASH_DATA_ZERO_INIT
-#endif
-
-#ifdef USE_RAM_CODE
-// RAM_CODE for methods that need to be in RAM, but don't need to be in the fastest type of memory.
-// Note: if code is marked as RAM_CODE it *MUST* be in RAM, there is no alternative unlike functions marked with FAST_CODE/CCM_CODE
-#define RAM_CODE                   __attribute__((section(".ram_code")))
-#endif
-
 #ifndef USE_ITERM_RELAX
 #undef USE_ABSOLUTE_CONTROL
 #endif

src/platform/APM32/include/platform/platform.h

@@ -212,3 +212,8 @@
 
 #define DMA_STCH_STRING    "Stream"
 #endif
+
+#ifdef USE_FAST_DATA
+#define FAST_DATA_ZERO_INIT         __attribute__ ((section(".fastram_bss"), aligned(4)))
+#define FAST_DATA                   __attribute__ ((section(".fastram_data"), aligned(4)))
+#endif // USE_FAST_DATA

src/platform/STM32/include/platform/platform.h

@@ -471,3 +471,49 @@ extern uint8_t _dmaram_end__;
 #if defined(STM32F4) || defined(STM32F7) || defined(STM32H7)
 #define DMA_STCH_STRING    "Stream"
 #endif
+
+#ifdef USE_ITCM_RAM
+#if defined(ITCM_RAM_OPTIMISATION) && !defined(DEBUG)
+#define FAST_CODE                   __attribute__((section(".tcm_code"))) __attribute__((optimize(ITCM_RAM_OPTIMISATION)))
+#else
+#define FAST_CODE                   __attribute__((section(".tcm_code")))
+#endif
+// If a particular target is short of ITCM RAM, defining FAST_CODE_PREF in the target.h file will
+// cause functions decorated FAST_CODE_PREF to *not* go into ITCM RAM but if FAST_CODE_PREF is not
+// defined for the target, FAST_CODE_PREF will become an alias to FAST_CODE (in the common post
+// header file), and functions decorated with FAST_CODE_PREF *will* go into ITCM RAM.
+
+#define FAST_CODE_NOINLINE          NOINLINE
+#endif // USE_ITCM_RAM
+
+// noting this is not used anywhere in the codebase at the moment
+#ifdef USE_CCM_CODE
+#define CCM_CODE                    __attribute__((section(".ccm_code")))
+#endif
+
+#ifdef USE_FAST_DATA
+#define FAST_DATA_ZERO_INIT         __attribute__ ((section(".fastram_bss"), aligned(4)))
+#define FAST_DATA                   __attribute__ ((section(".fastram_data"), aligned(4)))
+#endif // USE_FAST_DATA
+
+#if defined(USE_EXST) && !defined(RAMBASED)
+#define USE_FLASH_BOOT_LOADER
+#endif
+
+#if defined(USE_FLASH_MEMORY_MAPPED)
+#if !defined(USE_RAM_CODE)
+#define USE_RAM_CODE
+#endif
+
+#define MMFLASH_CODE RAM_CODE
+#define MMFLASH_CODE_NOINLINE RAM_CODE NOINLINE
+
+#define MMFLASH_DATA FAST_DATA
+#define MMFLASH_DATA_ZERO_INIT FAST_DATA_ZERO_INIT
+#endif
+
+#ifdef USE_RAM_CODE
+// RAM_CODE for methods that need to be in RAM, but don't need to be in the fastest type of memory.
+// Note: if code is marked as RAM_CODE it *MUST* be in RAM, there is no alternative unlike functions marked with FAST_CODE/CCM_CODE
+#define RAM_CODE                   __attribute__((section(".ram_code")))
+#endif

src/platform/STM32/target/STM32F7X2/target.h

@@ -77,6 +77,6 @@
 #define FLASH_PAGE_SIZE ((uint32_t)0x4000) // 16K sectors
 
 // ITCM is in short supply for this target.
-// For this target, functions decorated FAST_CODE_PREF will not be put into ITCM RAM; 
+// For this target, functions decorated FAST_CODE_PREF will not be put into ITCM RAM;
 // on other targets, the same function *will* go into ITCM RAM
 #define FAST_CODE_PREF