Commit Graph

469991 Commits

Author SHA1 Message Date
Max Filippov be603092cc xtensa: nommu: add MMU dependency to DEBUG_TLB_SANITY
TLB sanity checking code depends on full MMU presence and may not be
built in noMMU confgiuration.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2014-10-21 13:28:51 +04:00
Max Filippov b6cee17b7d xtensa: nommu: don't build most of the cache flushing code
Most cache flushing code is only relevant for MMU. Don't build it for
nommu configuration.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2014-10-21 13:28:50 +04:00
Max Filippov d10fa7cf3d xtensa: nommu: don't provide arch_get_unmapped_area
Nommu unconditionally provides arch_get_unmapped_area that always
returns -ENOMEM.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2014-10-21 13:28:48 +04:00
Max Filippov f6891ddbc7 xtensa: nommu: provide MAP_UNINITIALIZED definition
Add MAP_UNINITIALIZED to xtensa version of mman.h to keep mm/nommu.c
happy.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2014-10-21 13:28:47 +04:00
Max Filippov 972c55bf70 xtensa: nommu: provide _PAGE_CHG_MASK definition
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2014-10-21 13:28:46 +04:00
Max Filippov 4d5ea70246 xtensa: nommu: provide __invalidate_dcache_page_alias stub
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2014-10-21 13:28:45 +04:00
Max Filippov c9d09bbec4 xtensa: nommu: move init_mmu stub to nommu_context.h
mmu_context.h is not used in nommu configuration, nommu_context.h is
used instead.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2014-10-21 13:28:44 +04:00
Max Filippov 3ce2ce1c0d xtensa: xtfpga: add lx200 SMP DTS and defconfig
This config allows running SMP-enabled bitstream on LX200 board.
NFS or FLASH rootfs, minimal debug, up to 4 cores.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2014-10-21 13:28:43 +04:00
Max Filippov 8c0b1ce28d xtensa: xtfpga: add generic KC705 board config
This config enables most important features, NFS or FLASH rootfs and
minimal debug.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2014-10-21 13:28:42 +04:00
Max Filippov 2651cc6974 xtensa: re-wire umount syscall to sys_oldumount
Userspace actually passes single parameter (path name) to the umount
syscall, so new umount just fails. Fix it by requesting old umount
syscall implementation and re-wiring umount to it.

Cc: stable@vger.kernel.org
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2014-10-21 13:28:41 +04:00
Max Filippov 61e47e9b53 xtensa: xtfpga: only select ethoc when ethernet is available
Otherwise we get the following build warning:
    (XTENSA_PLATFORM_XTFPGA) selects ETHOC which has unmet direct
    dependencies (NETDEVICES && ETHERNET && HAS_IOMEM && HAS_DMA)

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2014-10-06 03:23:53 +04:00
Max Filippov bb550fd5c3 xtensa: add seccomp, getrandom, and memfd_create syscalls
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2014-10-06 03:23:52 +04:00
Max Filippov 7a0684cdbd xtensa: ISS: add BLOCK dependency to BLK_DEV_SIMDISK
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2014-10-06 03:23:51 +04:00
Max Filippov a211276a8e xtensa: implement pgprot_noncached
The default pgprot_noncached doesn't do anything. This leads to issues
when drivers rely on it to disable caching in userspace mappings.
Implement pgprot_noncached properly so that caching of userspace mappings
could be controlled.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2014-10-06 03:23:50 +04:00
Linus Torvalds bfe01a5ba2 Linux 3.17 2014-10-05 12:23:04 -07:00
Linus Torvalds ef0a59924a Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
 "This is a set of two small fixes, both to code which went in during
  the merge window: cxgb4i has a scheduling in atomic bug in its new
  ipv6 code and uas fails to work properly with the new scsi-mq code"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  [SCSI] uas: disable use of blk-mq I/O path
  [SCSI] cxgb4i: avoid holding mutex in interrupt context
2014-10-05 10:16:11 -07:00
Linus Torvalds 7b6ea43d3f Merge tag 'tiny/kconfig-for-3.17' of https://git.kernel.org/pub/scm/linux/kernel/git/josh/linux
Pull kconfig fixes for tiny setups from Josh Triplett:
 "Two Kconfig bugfixes for 3.17 related to tinification.  These fixes
  make the Kconfig "General Setup" menu much more usable"

* tag 'tiny/kconfig-for-3.17' of https://git.kernel.org/pub/scm/linux/kernel/git/josh/linux:
  init/Kconfig: Fix HAVE_FUTEX_CMPXCHG to not break up the EXPERT menu
  init/Kconfig: Hide printk log config if CONFIG_PRINTK=n
2014-10-04 09:32:47 -07:00
Josh Triplett 62b4d20411 init/Kconfig: Fix HAVE_FUTEX_CMPXCHG to not break up the EXPERT menu
commit 03b8c7b623 ("futex: Allow
architectures to skip futex_atomic_cmpxchg_inatomic() test") added the
HAVE_FUTEX_CMPXCHG symbol right below FUTEX.  This placed it right in
the middle of the options for the EXPERT menu.  However,
HAVE_FUTEX_CMPXCHG does not depend on EXPERT or FUTEX, so Kconfig stops
placing items in the EXPERT menu, and displays the remaining several
EXPERT items (starting with EPOLL) directly in the General Setup menu.

Since both users of HAVE_FUTEX_CMPXCHG only select it "if FUTEX", make
HAVE_FUTEX_CMPXCHG itself depend on FUTEX.  With this change, the
subsequent items display as part of the EXPERT menu again; the EMBEDDED
menu now appears as the next top-level item in the General Setup menu,
which makes General Setup much shorter and more usable.

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Cc: stable <stable@vger.kernel.org>
2014-10-03 16:49:43 -07:00
Josh Triplett 361e9dfbaa init/Kconfig: Hide printk log config if CONFIG_PRINTK=n
The buffers sized by CONFIG_LOG_BUF_SHIFT and
CONFIG_LOG_CPU_MAX_BUF_SHIFT do not exist if CONFIG_PRINTK=n, so don't
ask about their size at all.

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Cc: stable <stable@vger.kernel.org>
2014-10-03 16:49:38 -07:00
Linus Torvalds 126d4576cb Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
 "Two i2c driver bugfixes"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: qup: Fix order of runtime pm initialization
  i2c: rk3x: fix 0 length write transfers
2014-10-03 14:20:44 -07:00
Linus Torvalds 039001972a Merge tag 'trace-fixes-v3.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull trace ring buffer iterator fix from Steven Rostedt:
 "While testing some new changes for 3.18, I kept hitting a bug every so
  often in the ring buffer.  At first I thought it had to do with some
  of the changes I was working on, but then testing something else I
  realized that the bug was in 3.17 itself.  I ran several bisects as
  the bug was not very reproducible, and finally came up with the commit
  that I could reproduce easily within a few minutes, and without the
  change I could run the tests over an hour without issue.  The change
  fit the bug and I figured out a fix.  That bad commit was:

    Commit 651e22f270 "ring-buffer: Always reset iterator to reader page"

  This commit fixed a bug, but in the process created another one.  It
  used the wrong value as the cached value that is used to see if things
  changed while an iterator was in use.  This made it look like a change
  always happened, and could cause the iterator to go into an infinite
  loop"

* tag 'trace-fixes-v3.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  ring-buffer: Fix infinite spin in reading buffer
2014-10-03 13:31:57 -07:00
Linus Torvalds 7d1419f30c Merge branch 'for-linus' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs/smb3 fixes from Steve French:
 "Fix for CIFS/SMB3 oops on reconnect during readpages (3.17 regression)
  and for incorrectly closing file handle in symlink error cases"

* 'for-linus' of git://git.samba.org/sfrench/cifs-2.6:
  CIFS: Fix readpages retrying on reconnects
  Fix problem recognizing symlinks
2014-10-03 13:09:57 -07:00
Linus Torvalds ee042ec880 Merge tag 'md/3.17-final-fix' of git://neil.brown.name/md
Pull raid5 discard fix from Neil Brown:
 "One fix for raid5 discard issue"

* tag 'md/3.17-final-fix' of git://neil.brown.name/md:
  md/raid5: disable 'DISCARD' by default due to safety concerns.
2014-10-03 08:40:37 -07:00
Linus Torvalds 80ad99da8b Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
 "Nothing too major or scary.

  One i915 regression fix, nouveau has a tmds regression fix, along with
  a regression fix for the runtime pm code for optimus laptops not
  restoring the display hw correctly"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/nouveau: make sure display hardware is reinitialised on runtime resume
  drm/nouveau: punt fbcon resume out to a workqueue
  drm/nouveau: fix regression on original nv50 board
  drm/nv50/disp: fix dpms regression on certain boards
  drm/i915: Flush the PTEs after updating them before suspend
2014-10-03 08:31:14 -07:00
Christoph Hellwig 2c2d831c81 [SCSI] uas: disable use of blk-mq I/O path
The uas driver uses the block layer tag for USB3 stream IDs.  With
blk-mq we can get larger tag numbers that the queue depth, which breaks
this assumption.  A fix is under way for 3.18, but sits on top of
large changes so can't easily be backported.   Set the disable_blk_mq
path so that a uas device can't easily crash the system when using
blk-mq for SCSI.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-10-03 05:27:58 -04:00