Chuck Jordan 0ca24cedda arc: trap handler, used by irq_offload, now handles thread switch ... It was found that the test latency_measure, when compiled for microkernel, would fail on the ARC. This because the trap handler, used by irq_offload, wasn't supporting thread switching. This submission adds the code to do that, and the code size is bigger only when CONFIG_MICROKERNEL is defined. To keep code a bit smaller, there is a trick exploited here where the AE bit is cleared in the STATUS32 register and in AUX_IRQ_ACT, bit 1 is set, to make it appear as if the machine has interrupted at priority 1 level. It then can jump into some common interrupt exit code for regular interrupts and perform an RTIE instruction to switch into the new thread. test/latency_measure/microkernel now passes. Change-Id: I1872a80bb09a259814540567f51721203201679a Signed-off-by: Chuck Jordan <cjordan@synopsys.com>		2016-05-27 21:11:24 +00:00
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core	arc: trap handler, used by irq_offload, now handles thread switch	2016-05-27 21:11:24 +00:00
include
soc	build: Introduce concept of SoC specific build flags	2016-05-27 10:04:29 -05:00
defconfig
Kbuild
Kconfig
Makefile	build: Introduce concept of SoC specific build flags	2016-05-27 10:04:29 -05:00