Vineet Gupta 3dea30ca5b ARCv2: Elide sending new cross core intr if receiver didn't ack prev ... ARConnect/MCIP IPI sending has a retry-wait loop in case caller had not seen a previous such interrupt. Turns out that it is not needed at all. Linux cross core calling allows coalescing multiple IPIs to same receiver - it is fine as long as there is one. This logic is built into upper layer already, at a higher level of abstraction. ipi_send_msg_one() sets the actual msg payload, but it only calls MCIP IPI sending if msg holder was empty (using atomic-set-new-and-get-old construct). Thus it is unlikely that the retry-wait looping was ever getting exercised at all. Cc: Chuck Jordan <cjordan@synopsys.com> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>		2016-02-24 11:07:31 +05:30
..
.gitignore	ARC: Add some .gitignore entries	2013-08-26 09:40:24 +05:30
arc_hostlink.c	ARC: Hostlink Pseudo-Driver for Metaware Debugger	2013-02-15 23:16:10 +05:30
arcksyms.c
asm-offsets.c	ARCv2: [vdk] dts files and defconfig for HS38 VDK	2015-06-25 06:00:21 +05:30
clk.c	ARC: fix typo with clock speed	2013-05-07 13:43:54 +05:30
ctx_sw.c	ARC: remove SYNC from __switch_to()	2015-11-17 22:05:30 +05:30
ctx_sw_asm.S	ARC: remove SYNC from __switch_to()	2015-11-17 22:05:30 +05:30
devtree.c	ARCv2: [axs103] Support ARC SDP FPGA platform for HS38x cores	2015-06-25 06:00:20 +05:30
disasm.c	ARC: rename kconfig option for unaligned emulation	2014-10-13 14:46:15 +05:30
entry-arcv2.S	ARCv2: SMP: Emulate IPI to self using software triggered interrupt	2016-02-24 11:07:28 +05:30
entry-compact.S	ARC: [arcompact] Handle bus error from userspace as Interrupt not exception	2015-11-14 13:12:20 +05:30
entry.S	ARC: [arcompact] Handle bus error from userspace as Interrupt not exception	2015-11-14 13:12:20 +05:30
fpu.c	ARC: Process-creation/scheduling/idle-loop	2013-02-11 20:00:38 +05:30
head.S	ARC: boot: Non Master cpus only need to call EARLY_CPU_SETUP once	2015-10-28 16:13:42 +05:30
intc-arcv2.c	ARCv2: intc: Allow interruption by lowest priority interrupt	2016-02-10 06:38:50 +05:30
intc-compact.c	ARC: [intc-compact] Remove IPI setup from ARCompact port	2016-02-24 11:07:31 +05:30
irq.c	ARC: smp: Rename platform hook @init_cpu_smp -> @init_per_cpu	2015-12-17 12:56:56 +05:30
kgdb.c	ARC: kgdb: generic kgdb_arch_pc() suffices	2014-10-22 16:14:04 -06:00
kprobes.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2013-11-15 16:47:22 -08:00
Makefile	ARCv2: SMP: Support ARConnect (MCIP) for Inter-Core-Interrupts et al	2015-06-22 14:06:56 +05:30
mcip.c	ARCv2: Elide sending new cross core intr if receiver didn't ack prev	2016-02-24 11:07:31 +05:30
module.c	ARC: Fix coding style issues	2013-04-09 12:21:14 +05:30
perf_event.c	ARCv2: perf: Ensure perf intr gets enabled on all cores	2015-12-12 16:03:59 +05:30
process.c	ARC: Abstract out ISA specific SLEEP args	2015-11-16 14:17:02 +05:30
ptrace.c	ARCv2: Support for ARCv2 ISA and HS38x cores	2015-06-22 14:06:55 +05:30
reset.c	arc: export symbol for pm_power_off in reset.c	2013-11-06 10:41:44 +05:30
setup.c	ARCv2: boot report CCMs (Closely Coupled Memories)	2016-02-18 17:30:18 +05:30
signal.c	ARCv2: Support for ARCv2 ISA and HS38x cores	2015-06-22 14:06:55 +05:30
smp.c	ARC: smp: Rename platform hook @init_cpu_smp -> @init_per_cpu	2015-12-17 12:56:56 +05:30
stacktrace.c	ARC: stack unwinder to bail if PC is not kernel mode	2015-06-19 18:09:29 +05:30
sys.c	ARC: ABIv3: fork/vfork wrappers not needed in "no-legacy-syscall" ABI	2013-03-11 19:01:10 +05:30
time.c	ARCv2: clocksource: Rename GRTC -> GFRC ...	2016-01-29 16:51:02 +05:30
traps.c	ARC: rename unhandled exception handler	2015-04-13 15:14:57 +05:30
troubleshoot.c	ARC: fix unused var wanring	2015-07-06 11:09:01 +05:30
unaligned.c	ARC: change some branchs to jumps to resolve linkage errors	2015-08-20 18:53:15 +05:30
unwind.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching	2016-01-14 16:38:02 -08:00
vmlinux.lds.S	ARC: boot: Support Halt-on-reset and Run-on-reset SMP booting modes	2015-10-28 16:08:17 +05:30