PoC cache configuration control by mhightower83 · Pull Request #7060

PoC cache configuration control by mhightower83 · Pull Request #7060 · esp8266/Arduino

added 6 commits

February 3, 2020 22:13

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

Added MMU_ qualifier to new defines.
Moved changes into their own file.
Don't know how to fix platformio issue.

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.

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.

master was missing new additions added by boards.txt.py in the PR.
Which the CI flags when it rebuilds boards.txt.

Adapted changes to umm_malloc, Esp.cpp, StackThunk.cpp,
WiFiClientSecureBearSSL.cpp, and virtualmem.ino to irammem.ino from
@earlephilhower PR esp8266#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.

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.

resolved conflicts in boards.txt.py and platform.txt

Resolved boards.txt conflict.

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.

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.

jjsuwa-sys3175 added a commit to jjsuwa-sys3175/Arduino that referenced this pull request

Dec 11, 2020

* add double-quotes to `compiler.S.flags`

* fix windows-specific processes (`recipe.hooks.linking.prelink.[12].pattern.windows`)

* rewrite processing of "mkdir" and "cp" in python because of platform-independence

earlephilhower pushed a commit that referenced this pull request

Dec 14, 2020

* Fix: cannot build after #7060 on Win64

* add double-quotes to `compiler.S.flags`

* fix windows-specific processes (`recipe.hooks.linking.prelink.[12].pattern.windows`)

* rewrite processing of "mkdir" and "cp" in python because of platform-independence

* make consistent with the use of quotation marks in other *.py files

davisonja added a commit to davisonja/Arduino that referenced this pull request

Dec 28, 2020

…lash

* upstream/master: (72 commits)
  Typo error in ESP8266WiFiGeneric.h (esp8266#7797)
  lwip2: use pvPortXalloc/vPortFree and "-free -fipa-pta" (esp8266#7793)
  Use smarter cache key, cache Arduino IDE (esp8266#7791)
  Update to SdFat 2.0.2, speed SD access (esp8266#7779)
  BREAKING - Upgrade to upstream newlib 4.0.0 release (esp8266#7708)
  mock: +hexdump() from debug.cpp (esp8266#7789)
  more lwIP physical interfaces (esp8266#6680)
  Rationalize File timestamp callback (esp8266#7785)
  Update to LittleFS v2.3 (esp8266#7787)
  WiFiServerSecure: Cache SSL sessions (esp8266#7774)
  platform.txt: instruct GCC to perform more aggressive optimization (esp8266#7770)
  LEAmDNS fixes (esp8266#7786)
  Move uzlib to master branch (esp8266#7782)
  Update to latest uzlib upstream (esp8266#7776)
  EspSoftwareSerial bug fix release 6.10.1: preciseDelay() could delay() for extremely long time, if period duration was exceeded on entry. (esp8266#7771)
  Fixed OOM double count in umm_realloc. (esp8266#7768)
  Added missing check for failure on umm_push_heap calls in Esp.cpp (esp8266#7767)
  Fix: cannot build after esp8266#7060 on Win64 (esp8266#7754)
  Add the missing 'rename' method wrapper in SD library. (esp8266#7766)
  i2s: adds i2s_rxtxdrive_begin(enableRx, enableTx, driveRxClocks, driveTxClocks) (esp8266#7748)
  ...

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Mar 4, 2021

mcspr mentioned this pull request

Oct 8, 2021