Commit Graph

11 Commits

Author SHA1 Message Date
Yoshihisa Morizumi
d2db639853 xpmem: support large page
1. try to use as large page as possible on attach
2. pre-map resident remote pages on attach

Change-Id: I5580682a4199e94085a9bad9ce3958a0f14cdcea
2021-03-03 05:07:49 +00:00
Masamichi Takagi
3aaa5350f0 xpmem: replace mcs_rwlock with ihk_rwspinlock
Change-Id: I2d29f37f590f55db009f522395ede4c6494f8c89
2021-03-03 05:07:49 +00:00
Masamichi Takagi
6332903f0d Revert "xpmem: Support large page attachment"
This reverts commit a8696d811d.

Conflicts:
	kernel/include/process.h
	kernel/syscall.c
	kernel/xpmem.c

Change-Id: I726e74450f6228d3fc78fc62dda15b2067732a53
2020-06-16 13:25:57 +09:00
Masamichi Takagi
e774e1b984 Revert "xpmem: fix mapping of attachment and segment"
This reverts commit a5fcc91656.

Change-Id: If29415369d724391b291939ecce76482138e82f5
2020-06-16 11:28:02 +09:00
Masamichi Takagi
a5fcc91656 xpmem: fix mapping of attachment and segment
* Mapping attached part of segment is done at attach time instead of
  make time to work with runtimes (e.g. OpenMPI) xpmem_make-ing the
  entire user-space
* Mapping attached part of segment at attach time can be turned off by
  specifying xpmem_remote_on_demand in kernel argument
* Mapping attachment chooses appropriate page-sizes, i.e., largest
  allowed by memory range and segment page boundary

Fixes: a8696d8 "xpmem: Support large page attachment"
Change-Id: I44663865204036520e5f62fe22b9134ee4629f9b
2020-06-15 10:11:29 +09:00
Masamichi Takagi
a8696d811d xpmem: Support large page attachment
Change-Id: I4d672eee1c905160ece204d278f0afd9b6d7dc01
Refs: #1259
2019-12-06 09:30:51 +09:00
Masamichi Takagi
04c11f35e9 xpmem: Add xpmem_openat
In arm64, glibc-open of /dev/xpmem is hooked in sys_openat. This
commit adds xpmem_openat which is called by sys_openat.
This commit silently applies copy_from_user fix to sys_open as well.

Change-Id: I3b4f7bf0e152c359250bb2b56910db9192390cb1
Fujitsu: POSTK_DEBUG_ARCH_DEP_46, POSTK_DEBUG_ARCH_DEP_62
2018-11-21 07:39:56 +00:00
Masamichi Takagi
c5d71c325d Modify copyright of files related to XPMEM 2017-09-20 15:11:57 +09:00
Takayuki Okamoto
9989f41fd3 add arm64 support
- add arm64 dependent codes with GICv3 and SVE support
- fix bugs based on architecture separation requests
2017-09-05 15:06:27 +09:00
Yoichi Umezawa
c38d536aaa xpmem: porting xpmem v2.6.3
implement xpmem_get, xpmem_release, xpmem_attach, xpmem_detach
2017-03-29 18:20:53 +09:00
Yoichi Umezawa
f410af1cfc xpmem: porting xpmem v2.6.3
implement xpmem_make, xpmem_remove
2016-12-16 17:00:09 +09:00