Re: [PATCH 2/3] of/fdt: introduce of_scan_flat_dt_subnodes and of_get_flat_dt_phandle

On Thu, 6 Apr 2017 09:09:41 -0500 Rob Herring wrote: > On Wed, Apr 5, 2017 at 7:38 PM, Nicholas Piggin wrote: > > Given that it's quite a small addition to of/fdt code, hopefully > > that gives you a reasonable justification to accept it. > > > > If you

Re: [PATCH V4 3/7] cxl: Keep track of mm struct associated with a context

On 08/04/17 00:11, Christophe Lombard wrote: The mm_struct corresponding to the current task is acquired each time an interrupt is raised. So to simplify the code, we only get the mm_struct when attaching an AFU context to the process. The mm_count reference is increased to ensure that the

Re: [v8] powerpc/powernv: add 'firmware/exports' attributes to sysfs

On Thu, Apr 6, 2017 at 4:37 PM, Oliver O'Halloran wrote: > On Thu, Mar 30, 2017 at 10:28 AM, Matt Brown > wrote: >> The HDAT data area is consumed by skiboot and turned into a device-tree. In >> some cases we would like to look directly at the HDAT.

Re: [PATCH V4 2/7] cxl: Remove unused values in bare-metal environment.

On 08/04/17 00:11, Christophe Lombard wrote: The two previously fields pid and tid, located in the structure cxl_irq_info, are only used in the guest environment. To avoid confusion, it's not necessary to fill the fields in the bare-metal environment. Pid_tid is now renamed to 'reserved' to

[PATCH] powerpc/powernv: Fix powernv Kconfig dependencies

The patch to introduce address translation services for Nvlink2 uses MMU notifiers. However usage of MMU notifiers requires a Kconfig option which is not selected by default on powerpc so add it to the powernv Kconfig. Signed-off-by: Alistair Popple ---

Re: [PATCH] powerpc/mm: Dump hash table

On 10/04/17 14:02, Anshuman Khandual wrote: On 04/10/2017 07:34 AM, Rashmica Gupta wrote: Current behaviour assumes that memory in RAM is contiguous and iterates from the start of RAM to (start + size of memory). When the memory isn't physically contiguous, this approach doesn't work. In dis

Re: [PATCH 1/5] powerpc/pseries: do not use msgsndp doorbells on POWER9 guests

On Mon, 10 Apr 2017 14:07:38 +1000 Benjamin Herrenschmidt wrote: > On Mon, 2017-04-10 at 13:22 +1000, Nicholas Piggin wrote: > > On Sun, 09 Apr 2017 18:03:35 +1000 > > > Benjamin Herrenschmidt wrote: > > > > > On Fri, 2017-04-07 at

Re: [PATCH 1/5] powerpc/pseries: do not use msgsndp doorbells on POWER9 guests

On Mon, 2017-04-10 at 13:22 +1000, Nicholas Piggin wrote: > On Sun, 09 Apr 2017 18:03:35 +1000 > > Benjamin Herrenschmidt wrote: > > > On Fri, 2017-04-07 at 22:55 +1000, Nicholas Piggin wrote: > > > POWER9 hypervisors will not necessarily run guest threads together on >

Re: [PATCH] powerpc/mm: Dump hash table

On 04/10/2017 07:34 AM, Rashmica Gupta wrote: > Current behaviour assumes that memory in RAM is contiguous and > iterates from the start of RAM to (start + size of memory). When the > memory isn't physically contiguous, this approach doesn't work. In dis contiguous platform, we just finish up

Re: [PATCH V4 1/7] cxl: Read vsec perst load image

Reviewed-by: Andrew Donnellan On 08/04/17 00:11, Christophe Lombard wrote: This bit is used to cause a flash image load for programmable CAIA-compliant implementation. If this bit is set to ‘0’, a power cycle of the adapter is required to load a programmable

Re: kselftest:lost_exception_test failure with 4.11.0-rc5

On Friday 07 April 2017 06:06 PM, Michael Ellerman wrote: Sachin Sant writes: I have run into few instances where the lost_exception_test from powerpc kselftest fails with SIGABRT. Following o/p is against 4.11.0-rc5. The failure is intermittent. What hardware

Re: [PATCH 1/5] powerpc/pseries: do not use msgsndp doorbells on POWER9 guests

On Sun, 09 Apr 2017 18:03:35 +1000 Benjamin Herrenschmidt wrote: > On Fri, 2017-04-07 at 22:55 +1000, Nicholas Piggin wrote: > > POWER9 hypervisors will not necessarily run guest threads together on > > the same core at the same time, so msgsndp should not be used. >

Re: [PATCH 1/2] powerpc/mm/radix: Don't do page walk cache flush when doing full mm flush

On Sat, 1 Apr 2017 20:11:47 +0530 "Aneesh Kumar K.V" wrote: > For fullmm tlb flush, we do a flush with RIC_FLUSH_ALL which will > invalidate all related caches (radix__tlb_flush()). Hence the pwc > flush is not needed. Thanks Aneesh. I see a 3x improvement in

Re: [PATCH 2/2] powerpc/mm/radix: Remove unnecessary ptesync

On Sat, 1 Apr 2017 20:11:48 +0530 "Aneesh Kumar K.V" wrote: > For a tlbiel with pid, we need to issue tlbiel with set number > encoded. We don't need to do ptesync for each of those. Instead we > need one for the entire tlbiel pid operation. > > Signed-off-by:

[PATCH] scsi: ibmvfc: don't check for failure from mempool_alloc()

mempool_alloc() cannot fail when passed GFP_NOIO or any other gfp setting that is permitted to sleep. So remove this pointless code. Signed-off-by: NeilBrown --- drivers/scsi/ibmvscsi/ibmvfc.c | 6 -- 1 file changed, 6 deletions(-) diff --git

[PATCH] powerpc/mm: Dump hash table

Current behaviour assumes that memory in RAM is contiguous and iterates from the start of RAM to (start + size of memory). When the memory isn't physically contiguous, this approach doesn't work. If memory exists at 0-5 GB and 6-10 GB then the current approach will check if entries exist in the

Re: Linux 4.11: Reported regressions as of Sunday, 2017-04-09

On Sun, Apr 09, 2017 at 07:15:49PM +0200, Thorsten Leemhuis wrote: > Desc: i915 gpu hangs under load > Repo: 2017-03-22 > https://www.mail-archive.com/intel-gfx@lists.freedesktop.org/msg116227.html > https://bugs.freedesktop.org/show_bug.cgi?id=100181 >

Linux 4.11: Reported regressions as of Sunday, 2017-04-09

Hi! Find below my third regression report for Linux 4.11. It lists 15 regressions I'm currently aware of. 5 regressions mentioned in last weeks report got fixed. As always: Are you aware of any other regressions? Then please let me know (simply CC regressi...@leemhuis.info). And please tell me if

Re: [PATCH 1/5] powerpc/pseries: do not use msgsndp doorbells on POWER9 guests

On Fri, 2017-04-07 at 22:55 +1000, Nicholas Piggin wrote: > POWER9 hypervisors will not necessarily run guest threads together on > the same core at the same time, so msgsndp should not be used. Maybe we shouldn't advertise doorbells at all ? > Signed-off-by: Nicholas Piggin