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From: Robin Murphy <robin.murphy@arm.com>
To: will.deacon@arm.com, catalin.marinas@arm.com
Cc: mark.rutland@arm.com, linux-arm-kernel@lists.infradead.org,
	linux-nvdimm@lists.01.org
Subject: [PATCH 0/6] arm64 pmem support
Date: Tue, 25 Jul 2017 11:55:37 +0100	[thread overview]
Message-ID: <cover.1500397441.git.robin.murphy@arm.com> (raw)

Hi all,

With the latest updates to the pmem API, the arch code contribution
becomes very straightforward to wire up - I think there's about as
much code here to just cope with the existence of our new instruction
as there is to actually make use of it. I don't have access to any
NVDIMMs nor suitable hardware to put them in, so this is written purely
to spec - the extent of testing has been the feature detection on a
v8.2 Fast Model vs. v8.0 systems.

Patch #1 could go in as a fix ahead of the rest; it just needs to come
before patch #5 to prevent that blowing up the build.

Robin.

Robin Murphy (6):
  arm64: mm: Fix set_memory_valid() declaration
  arm64: Convert __inval_cache_range() to area-based
  arm64: Expose DC CVAP to userspace
  arm64: Handle trapped DC CVAP
  arm64: Implement pmem API support
  arm64: uaccess: Implement *_flushcache variants

 Documentation/arm64/cpu-feature-registers.txt |  2 ++
 arch/arm64/Kconfig                            | 12 +++++++
 arch/arm64/include/asm/assembler.h            |  6 ++++
 arch/arm64/include/asm/cacheflush.h           |  4 ++-
 arch/arm64/include/asm/cpucaps.h              |  3 +-
 arch/arm64/include/asm/esr.h                  |  3 +-
 arch/arm64/include/asm/string.h               |  4 +++
 arch/arm64/include/asm/sysreg.h               |  1 +
 arch/arm64/include/asm/uaccess.h              | 12 +++++++
 arch/arm64/include/uapi/asm/hwcap.h           |  1 +
 arch/arm64/kernel/cpufeature.c                | 13 ++++++++
 arch/arm64/kernel/cpuinfo.c                   |  1 +
 arch/arm64/kernel/head.S                      | 18 +++++-----
 arch/arm64/kernel/traps.c                     |  3 ++
 arch/arm64/lib/Makefile                       |  2 ++
 arch/arm64/lib/uaccess_flushcache.c           | 47 +++++++++++++++++++++++++++
 arch/arm64/mm/cache.S                         | 37 ++++++++++++++++-----
 arch/arm64/mm/pageattr.c                      | 18 ++++++++++
 18 files changed, 166 insertions(+), 21 deletions(-)
 create mode 100644 arch/arm64/lib/uaccess_flushcache.c

-- 
2.12.2.dirty

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WARNING: multiple messages have this Message-ID (diff)
From: robin.murphy@arm.com (Robin Murphy)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/6] arm64 pmem support
Date: Tue, 25 Jul 2017 11:55:37 +0100	[thread overview]
Message-ID: <cover.1500397441.git.robin.murphy@arm.com> (raw)

Hi all,

With the latest updates to the pmem API, the arch code contribution
becomes very straightforward to wire up - I think there's about as
much code here to just cope with the existence of our new instruction
as there is to actually make use of it. I don't have access to any
NVDIMMs nor suitable hardware to put them in, so this is written purely
to spec - the extent of testing has been the feature detection on a
v8.2 Fast Model vs. v8.0 systems.

Patch #1 could go in as a fix ahead of the rest; it just needs to come
before patch #5 to prevent that blowing up the build.

Robin.

Robin Murphy (6):
  arm64: mm: Fix set_memory_valid() declaration
  arm64: Convert __inval_cache_range() to area-based
  arm64: Expose DC CVAP to userspace
  arm64: Handle trapped DC CVAP
  arm64: Implement pmem API support
  arm64: uaccess: Implement *_flushcache variants

 Documentation/arm64/cpu-feature-registers.txt |  2 ++
 arch/arm64/Kconfig                            | 12 +++++++
 arch/arm64/include/asm/assembler.h            |  6 ++++
 arch/arm64/include/asm/cacheflush.h           |  4 ++-
 arch/arm64/include/asm/cpucaps.h              |  3 +-
 arch/arm64/include/asm/esr.h                  |  3 +-
 arch/arm64/include/asm/string.h               |  4 +++
 arch/arm64/include/asm/sysreg.h               |  1 +
 arch/arm64/include/asm/uaccess.h              | 12 +++++++
 arch/arm64/include/uapi/asm/hwcap.h           |  1 +
 arch/arm64/kernel/cpufeature.c                | 13 ++++++++
 arch/arm64/kernel/cpuinfo.c                   |  1 +
 arch/arm64/kernel/head.S                      | 18 +++++-----
 arch/arm64/kernel/traps.c                     |  3 ++
 arch/arm64/lib/Makefile                       |  2 ++
 arch/arm64/lib/uaccess_flushcache.c           | 47 +++++++++++++++++++++++++++
 arch/arm64/mm/cache.S                         | 37 ++++++++++++++++-----
 arch/arm64/mm/pageattr.c                      | 18 ++++++++++
 18 files changed, 166 insertions(+), 21 deletions(-)
 create mode 100644 arch/arm64/lib/uaccess_flushcache.c

-- 
2.12.2.dirty

             reply	other threads:[~2017-07-25 10:54 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-25 10:55 Robin Murphy [this message]
2017-07-25 10:55 ` [PATCH 0/6] arm64 pmem support Robin Murphy
2017-07-25 10:55 ` [PATCH 1/6] arm64: mm: Fix set_memory_valid() declaration Robin Murphy
2017-07-25 10:55   ` Robin Murphy
2017-07-25 10:55 ` [PATCH 2/6] arm64: Convert __inval_cache_range() to area-based Robin Murphy
2017-07-25 10:55   ` Robin Murphy
2017-07-25 10:55 ` [PATCH 3/6] arm64: Expose DC CVAP to userspace Robin Murphy
2017-07-25 10:55   ` Robin Murphy
2017-07-25 10:55 ` [PATCH 4/6] arm64: Handle trapped DC CVAP Robin Murphy
2017-07-25 10:55   ` Robin Murphy
2017-07-25 10:55 ` [PATCH 5/6] arm64: Implement pmem API support Robin Murphy
2017-07-25 10:55   ` Robin Murphy
2017-08-04 15:25   ` Catalin Marinas
2017-08-04 15:25     ` Catalin Marinas
2017-08-04 17:43     ` Robin Murphy
2017-08-04 17:43       ` Robin Murphy
2017-08-04 18:09       ` Dan Williams
2017-08-04 18:09         ` Dan Williams
2017-08-04 18:35         ` Robin Murphy
2017-08-04 18:35           ` Robin Murphy
2017-08-04 19:36           ` Dan Williams
2017-08-04 19:36             ` Dan Williams
2017-08-07 18:33     ` Will Deacon
2017-08-07 18:33       ` Will Deacon
2017-07-25 10:55 ` [PATCH 6/6] arm64: uaccess: Implement *_flushcache variants Robin Murphy
2017-07-25 10:55   ` Robin Murphy
2017-08-07 18:32   ` Will Deacon
2017-08-07 18:32     ` Will Deacon
2017-08-10 10:58   ` Arnd Bergmann
2017-08-10 10:58     ` Arnd Bergmann
2017-08-10 14:12     ` Catalin Marinas
2017-08-10 14:12       ` Catalin Marinas
2017-08-07 18:34 ` [PATCH 0/6] arm64 pmem support Will Deacon
2017-08-07 18:34   ` Will Deacon

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