Max Filippov 839769c354 xtensa: fix a7 clobbering in coprocessor context load/store ...

Fast coprocessor exception handler saves a3..a6, but coprocessor context
load/store code uses a4..a7 as temporaries, potentially clobbering a7.
'Potentially' because coprocessor state load/store macros may not use
all four temporary registers (and neither FPU nor HiFi macros do).
Use a3..a6 as intended.

Cc: stable@vger.kernel.org
Fixes: c658eac628 ("[XTENSA] Add support for configurable registers and coprocessors")
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>

2022-04-15 18:44:02 -07:00

..

boot

xtensa: fix DTC warning unit_address_format

2022-03-17 02:55:47 -07:00

configs

rcu: Fix undefined Kconfig macros

2021-09-13 16:32:46 -07:00

include

Merge tag 'tty-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

2022-03-28 13:00:51 -07:00

kernel

xtensa: fix a7 clobbering in coprocessor context load/store

2022-04-15 18:44:02 -07:00

lib

xtensa: add helpers for division, remainder and shifts

2022-03-09 14:02:40 -08:00

mm

xtensa: define update_mmu_tlb function

2022-03-22 09:45:09 -07:00

platforms

arch: xtensa: platforms: Fix deadlock in rs_close()

2022-04-13 03:36:34 -07:00

variants

xtensa: add test_kc705_be variant

2018-08-20 12:34:45 -07:00

Kbuild

xtensa: move core-y in arch/xtensa/Makefile to arch/xtensa/Kbuild

2021-08-11 11:37:13 -07:00

Kconfig

Merge tag 'dma-mapping-5.18' of git://git.infradead.org/users/hch/dma-mapping

2022-03-29 08:50:14 -07:00

Kconfig.debug

xtensa: make stack dump size configurable

2019-11-26 11:33:39 -08:00

Makefile

xtensa: add kernel ABI selection to Kconfig

2022-03-09 14:16:35 -08:00