[PATCH 0/7] ARM: NOMMU: MPU updates

[Vladimir Murzin]

Hi,

I know, we are in a middle of the merge window, but given that DMA fixes for
NOMMU have landed in Linus tree it'd be handy to have this patch set included
too:

"These MPU patches introduce a nice feature that it simplifies the bootloader:
do not need to setup the MPU, for example for coherent DMA region, which is
described in device-tree too." András Szemző

Thanks!
Vladimir

On 27/06/17 09:33, Vladimir Murzin wrote:
> Ping!
> 
> On 20/06/17 09:30, Vladimir Murzin wrote:
>> Gentle ping...
>>
>> On 13/06/17 10:05, Vladimir Murzin wrote:
>>> Hi,
>>>
>>> This is an update of the existent MPU code which consist set of
>>> clean-ups and enhancements. The most significant changes are in the way
>>> how MPU settings sync-up for secondaries (PATCH 3/7) and more flexible
>>> layout for memory (PATCH 7/7). Since there is no in-tree user of MPU,
>>> support for M-class has been added (PATCH 6/7).
>>>
>>> Thanks!
>>>
>>> Changelog:
>>>
>>>         RFC v2 -> v1
>>>              - dropped RFC tag
>>> 	       - Tested-by from András
>>> 	       - rebased on 4.12-rc5
>>>
>>>            RFC -> RFC v2
>>> 	       - fixed MPU enable for v7m (PATCH 6/7)
>>>
>>> Vladimir Murzin (7):
>>>   ARM: NOMMU: Move out MPU setup in separate module
>>>   ARM: NOMMU: Update MPU accessors to use cp15 helpers
>>>   ARM: NOMMU: Rework MPU to be mostly done in C
>>>   ARM: NOMMU: Disallow MPU for XIP
>>>   ARM: Kconfig: Kill CONFIG_VECTORS_BASE
>>>   ARM: V7M: Add support for MPU to M-class
>>>   ARM: NOMMU: Use more MPU regions to cover memory
>>>
>>>  arch/arm/Kconfig               |   9 -
>>>  arch/arm/Kconfig-nommu         |   4 +-
>>>  arch/arm/include/asm/cputype.h |  10 +
>>>  arch/arm/include/asm/mpu.h     |  23 ++-
>>>  arch/arm/include/asm/smp.h     |   2 +-
>>>  arch/arm/include/asm/v7m.h     |  10 +
>>>  arch/arm/kernel/asm-offsets.c  |  11 +
>>>  arch/arm/kernel/head-nommu.S   | 128 +++++++++---
>>>  arch/arm/kernel/smp.c          |   2 +-
>>>  arch/arm/mm/Makefile           |   1 +
>>>  arch/arm/mm/nommu.c            | 254 +----------------------
>>>  arch/arm/mm/pmsa-v7.c          | 445 +++++++++++++++++++++++++++++++++++++++++
>>>  12 files changed, 598 insertions(+), 301 deletions(-)
>>>  create mode 100644 arch/arm/mm/pmsa-v7.c
>>>
>>
>>
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