Re: [PATCH 1/3] ARC: mcip: halt GFRC together with ARC cores

On 02/21/2018 12:31 PM, Vineet Gupta wrote: Hi Eugeniy, Starting from ARC HS v3.0 From the STAR fix, it seem this was fixed in HS 2.1c, so you should be able to test it on HSDK, which was my next question: where and how did you test this and verify that it works as we think it does. I trie

Re: [PATCH] bug.h: Work around GCC PR82365 in BUG()

On 02/07/2018 05:20 PM, Vineet Gupta wrote: Didn't do ;) Is Arnd's patch good to merge or do we need a fixup? From: Arnd Bergmann Subject: bug.h: work around GCC PR82365 in BUG() Looking at functions with large stack frames across all architectures led me discovering that BUG() suffers fro

Re: [PATCH 1/3] ARC: mcip: halt GFRC together with ARC cores

Hi Eugeniy, On 02/21/2018 01:40 AM, Eugeniy Paltsev wrote: Currently GFRC is running regardless state of ARC cores in the SMP cluster. That means even if ARC cores are halted when doing JTAG debugging GFRC [our source of wall-time] continues to run giving us unexpected warnings once we allow ARC

Re: [PATCH] mmc: dw_mmc: Fix the DTO timeout overflow calculation for 32-bit systems

On Wed, Feb 21, 2018 at 7:57 PM, Evgeniy Didin wrote: > In commit 9d9491a7da2a ("mmc: dw_mmc: Fix the DTO timeout calculation") have > been made > changes which can cause multiply overflow for 32-bit systems. It was caught > on arc/hsdk board > when "drto_ms" should be 671, but it was 70 and tha

Re: [PATCH] mmc: dw_mmc: Fix the DTO timeout overflow calculation for 32-bit systems

Hi Evgeniy On 02/21/2018 09:57 AM, Evgeniy Didin wrote: In commit 9d9491a7da2a ("mmc: dw_mmc: Fix the DTO timeout calculation") have been made changes which can cause multiply overflow for 32-bit systems. Awesome, thx for quickly narrowing it down. I tried the fix and it cures my issue. It

[PATCH] clocksource: arc_timer: update some comments

TIMER0 interrupt ACK is different for ARC700 and HS3x cores. This came to light in some internal discussions and it is nice to have this documented rather than digging up the PRM (Prog Ref Manual) again Signed-off-by: Vineet Gupta --- drivers/clocksource/arc_timer.c | 11 --- 1 file cha

[PATCH] mmc: dw_mmc: Fix the DTO timeout overflow calculation for 32-bit systems

In commit 9d9491a7da2a ("mmc: dw_mmc: Fix the DTO timeout calculation") have been made changes which can cause multiply overflow for 32-bit systems. It was caught on arc/hsdk board when "drto_ms" should be 671, but it was 70 and that caused a flow of stack-traces just copying file from mmc. Let

[PATCH 1/3] ARC: mcip: halt GFRC together with ARC cores

Currently GFRC is running regardless state of ARC cores in the SMP cluster. That means even if ARC cores are halted when doing JTAG debugging GFRC [our source of wall-time] continues to run giving us unexpected warnings once we allow ARC cores to run due to some tasks being stuck for too long. Sta

[PATCH 2/3] ARC: mcip: setup MCIP debug mask according to cpu possible mask

Setup MCIP debug mask according cpu possible mask instead of use hardcoded one. Signed-off-by: Eugeniy Paltsev --- arch/arc/kernel/mcip.c | 13 +++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/arch/arc/kernel/mcip.c b/arch/arc/kernel/mcip.c index e87a4ea..da73258 1006

[PATCH 3/3] ARC: setup cpu possible mask according to possible-cpus dts property

As we have option in u-boot to set CPU mask for running linux, we want to pass information to kernel about CPU cores should be brought up. So we patch kernel dtb in u-boot to set possible-cpus property. This also allows us to have correctly setuped MCIP debug mask. Signed-off-by: Eugeniy Paltsev