| From: |
| Robin Murphy <robin.murphy-5wv7dgnIgG8-AT-public.gmane.org> |
| To: |
| will.deacon-5wv7dgnIgG8-AT-public.gmane.org, catalin.marinas-5wv7dgnIgG8-AT-public.gmane.org |
| Subject: |
| [PATCH 0/6] arm64 pmem support |
| Date: |
| Tue, 25 Jul 2017 11:55:37 +0100 |
| Message-ID: |
| <cover.1500397441.git.robin.murphy@arm.com> |
| Cc: |
| mark.rutland-5wv7dgnIgG8-AT-public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r-AT-public.gmane.org, linux-nvdimm-hn68Rpc1hR1g9hUCZPvPmw-AT-public.gmane.org |
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
