linux-dev - Linux kernel development work

Age	Commit message (Collapse)	Author	Files	Lines
2019-02-07	xtensa: drop unused definitions	Max Filippov	2	-11/+0
	drop the following unused definitions: - TS_USEDFPU from arch/xtensa/include/asm/thread_info.h - current_set from arch/xtensa/kernel/process.c Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2019-02-07	xtensa: fix get_wchan	Max Filippov	1	-2/+2
	Stack unwinding is implemented incorrectly in xtensa get_wchan: instead of extracting a0 and a1 registers from the spill location under the stack pointer it extracts a word pointed to by the stack pointer and subtracts 4 or 3 from it. Cc: stable@vger.kernel.org Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2019-02-07	xtensa: use generic spinlock/rwlock implementation	Max Filippov	4	-194/+10
	Drop custom spinlock/rwlock code and use ones from asm-generic. This way there is less code duplication (atomic primitives are reused). Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2019-02-07	xtensa: provide xchg for sizes 1 and 2	Max Filippov	1	-4/+32
	This is required for generic queued spinlocks, implement it. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2019-02-07	xtensa: clean up arch/xtensa/kernel/time.c	Max Filippov	1	-28/+25
	- move all constant assignments from local_timer_setup to the definition of ccount_timer to make it mostly statically initialized; - drop local function declarations, reorder functions and variables that reference them. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2019-02-07	xtensa: SMP: rework IPI processing	Max Filippov	1	-15/+23
	Don't skip current CPU in send_ipi_message: callers of this function take care of it and it's harmless anyway. Don't clear IPI bits one by one, clear all that were read at once. Check IPI register in a loop in case new IPI was posted while previous was being handled. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>