Andy Ross a3848cb861 soc/xtensa/intel_adsp: Add arch_printk_char_out hook ... Add a printk default hook that works in very early boot and doesn't depend on the logging subsystem (which can still be used if desired, of course). It speaks the same protocol, is somewhat smaller (MUCH smaller if the app doesn't otherwise need the logging and ring buffer dependencies), and more efficiently uses the output slot space by doing line buffering and flushing only when needed. Most importantly this one is MP-safe via both locking and cache coherence management, and can work reliably when SMP is enabled. (Note that "reliable" means that all output appears without corruption -- simulateous logging by two CPUs can still interleave bytes, of course). Longer term, if we keep this protocol it would be good to unify the two backends to reduce duplicated code. Signed-off-by: Andy Ross <andrew.j.ross@intel.com>		2020-10-21 06:38:53 -04:00
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arc
arm	boards: mm_swiftio: remove spi default pinmux	2020-10-20 12:02:41 -05:00
common
nios2
posix
riscv
shields
x86
xtensa	soc/xtensa/intel_adsp: Add arch_printk_char_out hook	2020-10-21 06:38:53 -04:00
CMakeLists.txt
deprecated.cmake
index.rst
Kconfig