APPLIED: [SRU][Bionic] Pull Request: Fixes for lp:1772991

[Khaled Elmously]

Applied to Bionic

On 2018-05-24 14:31:56 , Joseph Salisbury wrote:
> == SRU Justification ==
> 12 kernel patches have been identified as needed to support Nvidia Volta 
> on bare metal. All are accepted upstream in 4.17. Three of those are 
> already in bionic, leaving a total of 9 remaining commits needed in bionic.
> This pull request is for those other 9 commits.
> 
> == Regression Potential ==
> All of the commits are specific to powerpc.
> 
> == Test Case ==
> A test kernel was built with these patches and tested by IBM.
> 
> 
> 
> The following changes since commit 9a195475b7d155b24360cede80901d4f6d1f03f4:
> 
>   UBUNTU: Ubuntu-4.15.0-22.24 (2018-05-16 13:55:54 +0200)
> 
> are available in the Git repository at:
> 
>   kernel.ubuntu.com:/srv/kernel.ubuntu.com/git/jsalisbury/bugs/lp1772991/ubuntu-bionic.git 
> 
> for you to fetch changes up to e5d809f41b15ed462f842de42a6f742fa6f00957:
> 
>   powerpc/mce: Fix a bug where mce loops on memory UE. (2018-05-23 17:47:30 -0400)
> 
> ----------------------------------------------------------------
> Alistair Popple (4):
>       powerpc/powernv/npu: Fix deadlock in mmio_invalidate()
>       powerpc/powernv/npu: Add lock to prevent race in concurrent context init/destroy
>       powerpc/powernv/npu: Prevent overwriting of pnv_npu2_init_contex() callback parameters
>       powerpc/powernv/npu: Do a PID GPU TLB flush when invalidating a large address range
> 
> Balbir Singh (3):
>       powerpc/powernv/mce: Don't silently restart the machine
>       powerpc/mm: Flush cache on memory hot(un)plug
>       powerpc/powernv/memtrace: Let the arch hotunplug code flush cache
> 
> Mahesh Salgaonkar (1):
>       powerpc/mce: Fix a bug where mce loops on memory UE.
> 
> Mark Hairgrove (1):
>       powerpc/npu-dma.c: Fix crash after __mmu_notifier_register failure
> 
>  arch/powerpc/include/asm/powernv.h        |   2 +-
>  arch/powerpc/kernel/mce_power.c           |   7 +-
>  arch/powerpc/mm/mem.c                     |   2 +
>  arch/powerpc/platforms/powernv/memtrace.c |  17 --
>  arch/powerpc/platforms/powernv/npu-dma.c  | 347 ++++++++++++++++++++----------
>  arch/powerpc/platforms/powernv/opal.c     |   5 +-
>  6 files changed, 243 insertions(+), 137 deletions(-)
> 
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