kernel.git/arch/arc/Kconfig, branch linux-4.10.y

ARC: module: Fix !CONFIG_ARC_DW2_UNWIND builds

2017-01-18T19:17:44Z

commit d65283f7b695b5 added mod->arch.secstr under CONFIG_ARC_DW2_UNWIND, but used it unconditionally which broke builds when the option was disabled. Fix that by adjusting the #ifdef guard. And while at it add a missing guard (for unwinder) in module.c as well Reported-by: Waldemar Brodkorb Cc: stable@vger.kernel.org #4.9 Fixes: d65283f7b695b5 ("ARC: module: elide loop to save reference to .eh_frame") Tested-by: Anton Kolesov Reviewed-by: Alexey Brodkin [abrodkin: provided fixlet to Kconfig per failure in allnoconfig build] Signed-off-by: Vineet Gupta

ARC: enable SG chaining

2016-12-19T02:45:32Z

Signed-off-by: Vladimir Kondratiev Signed-off-by: Vineet Gupta

clocksource: import ARC timer driver

2016-11-30T19:54:25Z

This adds support for - CONFIG_ARC_TIMERS : legacy 32-bit TIMER0 and TIMER1 which count UP from @CNT to @LIMIT, before optionally triggering an interrupt. These are programmed using ARC auxiliary register interface. These are present in all ARC cores (ARC700 and ARC HS38) TIMER0 serves as clockevent for all ARC linux builds. TIMER1 is used for clocksource in arc700 builds. - CONFIG_ARC_TIMERS_64BIT: 64-bit counters, RTC and GFRC found in ARC HS38 cores. These are independnet IP blocks with different programming model respectively. Link: http://lkml.kernel.org/r/20161111231132.GA4186@mai Acked-by: Daniel Lezcano Signed-off-by: Vineet Gupta

ARC: timer: gfrc, rtc: build under same option (64-bit timers)

2016-11-30T19:54:25Z

The original distinction was done as they were developed at different times and primarily because they are specific to UP (RTC) and SMP (GFRC). But given that driver handles that at runtime, (i.e. not allowing RTC as clocksource in SMP), we can simplify things a bit. Signed-off-by: Vineet Gupta

ARC: mm: retire ARC_DBG_TLB_MISS_COUNT...

2016-10-28T17:10:28Z

... given that we have perf counters abel to do the same thing non intrusively Signed-off-by: Vineet Gupta

ARC: [build] Support gz, lzma compressed uImage

2016-10-16T22:49:07Z

Add support for lzma compressed uImage. Support for gzip was already available but could not be enabled because we were missing CONFIG_HAVE_KERNEL_GZIP in arch/arc/Kconfig. Signed-off-by: Daniel Mentz Cc: linux-snps-arc@lists.infradead.org Cc: Vineet Gupta Signed-off-by: Vineet Gupta

ARCv2: intc: untangle SMP, MCIP and IDU

2016-10-16T22:49:07Z

The IDU intc is technically part of MCIP (Multi-core IP) hence historically was only available in a SMP hardware build (and thus only in a SMP kernel build). Now that hardware restriction has been lifted, so a UP kernel needs to support it. This requires breaking mcip.c into parts which are strictly SMP (inter-core interrupts) and IDU which in reality is just another intc and thus has no bearing on SMP. This change allows IDU in UP builds and with a suitable device tree, we can have the cascaded intc system ARCv2 core intc <---> ARCv2 IDU intc <---> periperals Signed-off-by: Vineet Gupta

ARC: CONFIG_NODES_SHIFT fix default values

2016-09-30T21:48:24Z

Seem like values assigned as absolute number and not and shift value, i.e. should be 0 for one node (2^0) and 1 for couple of nodes (2^1) Signed-off-by: Noam Camus Signed-off-by: Vineet Gupta

ARCv2: Implement atomic64 based on LLOCKD/SCONDD instructions

2016-09-30T21:48:17Z

ARCv2 ISA provides 64-bit exclusive load/stores so use them to implement the 64-bit atomics and elide the spinlock based generic 64-bit atomics boot tested with atomic64 self-test (and GOD bless the person who wrote them, I realized my inline assmebly is sloppy as hell) Cc: Peter Zijlstra Cc: Will Deacon Cc: linux-snps-arc@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Vineet Gupta

Revert "ARCv2: spinlock/rwlock/atomics: Delayed retry of failed SCOND with exponential backoff"

2016-06-02T05:29:23Z

This reverts commit e78fdfef84be13a5c2b8276e12203cdf24778596. The issue was fixed in hardware in HS2.1C release and there are no known external users of affected RTL so revert the whole delayed retry series ! Signed-off-by: Vineet Gupta