Re: [PATCH v2] ARC: Force disable IOC if we don't want to use it

2018-01-19 Thread Alexey Brodkin
Hi Vineet, On Fri, 2018-01-19 at 11:17 -0800, Vineet Gupta wrote: > On 12/18/2017 07:29 AM, Alexey Brodkin wrote: > > If software that was executed before Linux kernel [like boot-ROM or > > bootloader] enabled IOC but we'd like to not use it [mostly for > > debugging of weird DMA issues] we essent

Re: [PATCH v2] ARC: Force disable IOC if we don't want to use it

2018-01-19 Thread Vineet Gupta
On 12/18/2017 07:29 AM, Alexey Brodkin wrote: If software that was executed before Linux kernel [like boot-ROM or bootloader] enabled IOC but we'd like to not use it [mostly for debugging of weird DMA issues] we essentially need to disable IOC. So we do here. Note we will only disable IOC if "io

[PATCH v2] ARC: Force disable IOC if we don't want to use it

2017-12-18 Thread Alexey Brodkin
If software that was executed before Linux kernel [like boot-ROM or bootloader] enabled IOC but we'd like to not use it [mostly for debugging of weird DMA issues] we essentially need to disable IOC. So we do here. Note we will only disable IOC if "ioc_enable" variable is force set to 0. As of toda