5 Commits

Author	SHA1	Message	Date
M Hightower	8b662ed3b3	PoC cache configuration control (#7060) ... * PoC cache configuration control Expaned boards.txt.py to allow new MMU options and create revised .ld's Updated eboot to pass 48K IRAM segments. Added Cache_Read_Enable intercept to modify call for 16K ICACHE Update platform.txt to pass new mmu options through to compiler and linker preprocessor. Added quick example: esp8266/MMU48K * Style corrections Added MMU_ qualifier to new defines. Moved changes into their own file. Don't know how to fix platformio issue. * Added detailed description for Cache_Read_Enable. Updated tools/sizes.py to report correct IRAM size and indicate ICACHE size. Merged in earlephilhower's work on unaligned exception. Refactored and added support for store operations and changed the name to be more closely aligned with its function. Improved crash reporting path. * Style and MMU_SEC_HEAP corrections. * Improved asm register usage. Added some inline functions to aid in byte and short access to iRAM. * only byte read has been tested Updated .ld file to work better with platform.io; however, I am still missing some steps, so platformio will still fail. * Interesting glitch in boards.txt after github merge. A new board in master was missing new additions added by boards.txt.py in the PR. Which the CI flags when it rebuilds boards.txt. * Support for 2nd Heap, excess IRAM, through umm_malloc. Adapted changes to umm_malloc, Esp.cpp, StackThunk.cpp, WiFiClientSecureBearSSL.cpp, and virtualmem.ino to irammem.ino from @earlephilhower PR #6994. Reworked umm_malloc to use context pointers instead of copy context. umm_malloc now supports allocations from IRAM. Added class HeapSelectIram, ... to aid in selecting alternate heaps, modeled after class InterruptLock. Restrict alloc request from ISRs to DRAM. Never ending improvements to debug printing. Sec Heap option now pulls in free IRAM left over in the 1st 32K block. Managed through umm_malloc with HeapSelectIram. Updated examples. * Post push CI cleanup. * Cleanup part II * Cleanup part III * Updates to support platformio, maybe. * Added exception C wrapper replacement. * CI Cleanup * CI Cleanup II Don't know what to do with platformio it doesn't like my .S file. ifdef out USE_ISR_SAFE_EXC_WRAPPER to block the new assemlby module from building on platformio only. * Changes to exc-c-wrapper-handler.S to assemble under platformio. * For platformio, Correction to toolchain-xtensa include path. @mcspr, Thankyou! * Temporarily added --print-memory-usage to ld parameters for cross-checking IRAM size. * undo change to platform.txt * correct merge conflict. take 1 * Fixed #if... for building umm_get_oom_count. It was not building when UMM_STATS_FULL was used. * Commented out XMC support. Compatibility issues with PoC when using 16K ICACHE. * Corrected size.py, DRAM bracketing changed to not include ICACHE with DRAM total. * Added additional _context for support of use of UMM_INLINE_METRICS. Corrected some UMM_POSION missed edits. * Changes to clear errors and warnings from toolchain 10.1 Several fixes and improvements to example MMU48K. With the improved optimization in toolchain 10.1 The example divide by 0 exception was failing with a HWDT event instead of its exception handler. The compiler saw the obscured divide by 0 and replaced it with a break point. * Isolated incompatable definitions related to _xtos_set_exception_handler. GDBSTUB definitions are different from the BootROM's. * Update tools/platformio-build.py Co-authored-by: Max Prokhorov <prokhorov.max@outlook.com> * Requested changes Changed mmu related usages of ETS_... defines to DBG_MMU_... Cleanup in example MMU48K.ino. Removed stale memory reference macro and mmu_status print statement. Cleanup printf '\n' to be '\r\n'. Improved issolation of development debug prints from the rest of the debug prints. * Corrected comment. And added missing include. * Improve comment. * style and comment correction * Added draft mmu.rst file and updated index. Updated example HeapMetric.ino to also illustrate use of IRAM Improved comments in exc-c-wrapper-handler.S. Added insurance IRQ disable. * Updated mmu.rst Improved function name uniqueness for is_iram, is_dram, and is_icache by adding prefix mmu_. Also, made them available outside of a debug build. Made pointer precision width more specific. Made some of the static inline functions in mmu_irm.h safe for ISRs by setting then for always inline. * Add a default MMU_IRAM_SIZE value for a new CI test to pass. Extended use 'umm_heap_context_t *_context' argument in ..._core functions and expanded its usage to reduce unnecessary repeated calls to umm_info(NULL, false), also removed recursion from umm_info(NULL, true). Fixed stack buffer length in umm_info_safe_printf_P and heap.cpp. Added example for creating an IRAM reserve section. Updated mmu.rst. Grammar and spelling corrections. * CI appeasement * CI appeasement with comment correction. * Ensure SYS always runs with DRAM Heap selected. * Add/move heap stack overflow/underflow check to Esp.cpp where the event was discarded. * Improved comment clarity of purpose for IramReserve.ino. Clean up MMU48K.ino * Added missing #include * Corrected usage of warning * CI appeasement and use #message not #pragma message * Updated git version of eboot.elf to match build version. Good test catch. * Remove conditional build option USE_ISR_SAFE_EXC_WRAPPER, always install. Use the replacement wrapper on non32xfer_exception_handler install. Added comments to code describing some exception handling issues. * Updated mmu.rst * Expanded and clarified comments. Limited access to some detailed typdefs/prototypes to .cpp modules, to avoid future build conflicts. Completed TODO for verifing that the "C" structure struct __exception_frame matches the ASM version. Fixed some typo's, code rot, and added some more cases in examaple irammem.ino. Refactored a little and reordered printing to ease comparison between methods. Corrected `#ifdef __cplusplus` coverage area. Cleaned up `extern "C" ...` usage. Fixes issues with including mmu_iram.h or esp8266_undocumented.h in .c files. * Style fixes and more cleanup * Style fix * Remove unnessasary IRAM_ATTR from install_non32xfer_exception_handler Some comment tuning. In the context of _xtos_set_exception_handler and the functions it registers, changed to type int for exception cause type. This is also the type used by gdbstub and some other Xtensa files I found.	2020-12-06 14:15:42 +01:00
Earle F. Philhower, III	418b00f7c0	Re-add deprecated _SPIFFS_xxx linker symbols (#6543) ... In order to give user libs a change to update to the new symbols, re-add the _SPIFFS_XX symbols to the linker file with a comment that they are deprecated. Also add back spiffs_hal_xxx functions, also marked as deprecated. Fixes #6542	2019-09-26 21:28:07 +02:00
Earle F. Philhower, III	69f3e81fb9	Restore EEPROM address to prior released location (#6537) ... When the FS_END was adjusted to end on a full block (i.e. rounded down) to avoid filesystem issues, but _FS_end was changed. The EEPROM library used _FS_end to implicitly calculate the start of the EEPROM data, so this means after the _FS_end fix, EEPROM data written with prior releases would "disappear." Avoid the issue by explicitly calculating the EEPROM start location in the linker, using the same formula as prior release. Fixes #6531	2019-09-20 08:24:10 -07:00
Earle F. Philhower, III	a389a995fb	Add LittleFS as an optional filesystem, API compatible w/SPIFFS (but not on-flash-format compatible) (#5511) ... * Add LittleFS as internal flash filesystem Adds a LittleFS object which uses the ARMmbed littlefs embedded filesystem, https://github.com/ARMmbed/littlefs, to enable a new filesystem for onboard flash utilizing the exact same API as the existing SPIFFS filesystem. LittleFS is built for low memory systems that are subject to random power losses, is actively supported by the ARMmbed community, supports directories, and seems to be much faster in the large-ish read-mostly applications I use. LittleFS, however, has a larger minimum file allocation unit and does not do static wear levelling. This means that for systems that need many little files (<4K), have small SPIFFS areas (64K), or which have a large static set of files covering the majority of flash coupled with a frequently updated set of other files, it may not perform as well. Simply replace SPIFFS.begin() with LittleFS.begin() in your sketch, use LittleFS.open in place of SPIFFS.open to open files, and everything else just works thanks to the magic of @igrr's File base class. **LITTLEFS FLASH LAYOUT IS INCOMPATIBLE WITH SPIFFS** Since it is a completely different filesystem, you will need to reformat your flash (and lose any data therein) to use it. Tools to build the flash filesystem and upload are at https://github.com/earlephilhower/arduino-esp8266littlefs-plugin and https://github.com/earlephilhower/mklittlefs/ . The mklittlefs tool is installed as part of the Arduino platform installation, automatically. The included example shows a contrived read-mostly example and demonstrates how the same calls work on either SPIFFS.* or LittleFS.* Host tests are also included as part of CI. Directories are fully supported in LittleFS. This means that LittleFS will have a slight difference vs. SPIFFS when you use LittleFS.openDir()/Dir.next(). On SPIFFS dir.next() will return all filesystem entries, including ones in "subdirs" (because in SPIFFS there are no subdirs and "/" is the same as any other character in a filename). On LittleFS, dir.next() will only return entries in the directory specified, not subdirs. So to list files in "/subdir/..." you need to actually openDir("/subdir") and use Dir.next() to parse through just those elements. The returned filenames also only have the filename returned, not full paths. So on a FS with "/a/1", "/a/2" when you do openDir("/a"); dir.next().getName(); you get "1" and "2" and not "/a/1" and "/a/2" like in SPIFFS. This is consistent with POSIX ideas about reading directories and more natural for a FS. Most code will not be affected by this, but if you depend on openDir/Dir.next() you need to be aware of it. Corresponding ::mkdir, ::rmdir, ::isDirectory, ::isFile, ::openNextFile, and ::rewind methods added to Filesystem objects. Documentation has been updated with this and other LittleFS information. Subdirectories are made silently when they do not exist when you try and create a file in a subdir. They are silently removed when the last file in them is deleted. This is consistent with what SPIFFS does but is obviously not normal POSIX behavior. Since there has never been a "FS.mkdir()" method this is the only way to be compatible with legacy SPIFFS code. SPIFFS code has been refactored to pull out common flash_hal_* ops and placed in its own namespace, like LittleFS. * Fix up merge blank line issue * Merge in the FSConfig changs from SDFS PR Enable setConfig for LittleFS as well plys merge the SPIFFS changes done in the SDFS PR. * Fix merge errors * Update to use v2-alpha branch The V2-alpha branch supports small file optimizations which can help increase the utilization of flash when small files are prevalent. It also adds support for metadata, which means we can start adding things like file creation times, if desired (not yet). * V2 of littlefs is now in upstream/master * Update test to support non-creation-ordered files In a directory, the order in which "readNextFile()" will return a name is undefined. SPIFFS may return it in order, but LittleFS does not as of V2. Update the test to look for files by name when doing readNextFile() testing. * Fix LittleFS.truncate implementation * Fix SDFS tests SDFS, SPIFFS, and LittleFS now all share the same common set of tests, greatly increasing the SDFS test coverage. * Update to point to mklittlefs v2 Upgrade mklittlefs to V2 format support * Remove extra FS::write(const char *s) method This was removed in #5861 and erroneously re-introduced here. * Minimize spurious differences from master * Dramatically reduce memory usage Reduce the program and read chunk sizes which impacts performance minimally but reduces per-file RAM usage of 16KB to <1KB. * Add @d-a-v's host emulation for LittleFS * Fix SW Serial library version * Fix free space reporting Thanks to @TD-er for discovering the issue * Update littlefs to latest upstream * Remove sdfat version included by accident * Update SDFAT to include MOCK changes required * Update to include SD.h test of file append	2019-05-25 09:53:24 +02:00
apicquot	4b16fa0a33	Added 2M generic boards (#5404) ... * added generic boards 2M (SPIFFS 128K) 2M (SPIFFS 256K)	2018-12-01 14:10:17 -08:00