mbox series

[0/4] xtensa: add load/store exception handler

Message ID 20230614045212.2534746-1-jcmvbkbc@gmail.com
Headers
Series xtensa: add load/store exception handler |

Message

Max Filippov June 14, 2023, 4:52 a.m. UTC 
  Hello,

this series rearranges unaligned exception handler and adds load/store
exception handler that allows transparent 1- and 2-byte wide reads from
memory attached to an instruction bus of an xtensa core.

Max Filippov (4):
  xtensa: move early_trap_init from kasan_early_init to init_arch
  xtensa: always install slow handler for unaligned access exception
  xtensa: rearrange unaligned exception handler
  xtensa: add load/store exception handler

 arch/xtensa/Kconfig             |  12 ++
 arch/xtensa/include/asm/traps.h |   7 +
 arch/xtensa/kernel/align.S      | 256 ++++++++++++++++++++++----------
 arch/xtensa/kernel/setup.c      |   7 +
 arch/xtensa/kernel/traps.c      |  27 +++-
 arch/xtensa/mm/kasan_init.c     |   2 -
 6 files changed, 221 insertions(+), 90 deletions(-)