| Commit message (Collapse) | Author | Age | Files | Lines |
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git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic updates from Arnd Bergmann:
"This has three changes for asm-generic that did not really fit into
any other branch as normal asm-generic changes do. One is a fix for a
build warning, the other two are more interesting:
* A patch from Mark Brown to allow using the common clock
infrastructure on all architectures, so we can use the clock API in
architecture independent device drivers.
* The UAPI split patches from David Howells for the asm-generic
files. There are other architecture specific series that are going
through the arch maintainer tree and that depend on this one.
There may be a few small merge conflicts between Mark's patch and the
following arch header file split patches. In each case the solution
will be to keep the new "generic-y += clkdev.h" line, even if it ends
up being the only line in the Kbuild file."
* tag 'asm-generic' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
UAPI: (Scripted) Disintegrate include/asm-generic
asm-generic: Add default clkdev.h
asm-generic: xor: mark static functions as __maybe_unused
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git://git.infradead.org/users/dhowells/linux-headers into asm-generic
Patches from David Howells <dhowells@redhat.com>:
This is to complete part of the UAPI disintegration for which the
preparatory patches were pulled recently.
Note that there are some fixup patches which are at the base of the
branch aimed at you, plus all arches get the asm-generic branch merged in too.
* 'disintegrate-asm-generic' of git://git.infradead.org/users/dhowells/linux-headers:
UAPI: (Scripted) Disintegrate include/asm-generic
UAPI: Fix conditional header installation handling (notably kvm_para.h on m68k)
c6x: remove c6x signal.h
UAPI: Split compound conditionals containing __KERNEL__ in Arm64
UAPI: Fix the guards on various asm/unistd.h files
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Ease the deployment of clkdev by providing a default asm/clkdev.h for
use if the arch does not have an include/asm/clkdev.h.
Due to limitations in Kbuild we manually add clkdev.h to all
architectures that don't have one rather than having the header appear
by default.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Reviewed-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Pull sparc changes from David S Miller:
"There is an attempt to fix a bad interaction between syscall tracing
and force_successful_syscall() from Al Viro, but it needs to be redone
as it introduced regressions and thus had to be reverted for now.
Al is working on an updated version.
But what we do have here are some significant bzero/memset
improvements for Niagara-4. An 8K page can be cleared in around 600
cycles, because we essentially have a store that behaves like
powerpc's dcbz that we can actually make real use of."
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
Revert strace hiccups fix.
sparc64: Niagara-4 bzero/memset, plus use MRU stores in page copy.
sparc64: Fix strace hiccups when force_successful_syscall() triggers.
sparc64: Rearrange thread info to cheaply clear syscall noerror state.
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This reverts commit 40138249c3b7a0762155216b963ec7fd4d09b5b4 and
ffa9009c9828db3f74178e459cfbca6e77ff5dd9.
There are problems with how the flag bytes were rearranged, in
particular we really can't move values down into the lowest
16 bits since those are used for individual state bits.
Signed-off-by: David S. Miller <davem@davemloft.net>
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This adds optimized memset/bzero/page-clear routines for Niagara-4.
We basically can do what powerpc has been able to do for a decade (via
the "dcbz" instruction), which is use cache line clearing stores for
bzero and memsets with a 'c' argument of zero.
As long as we make the cache initializing store to each 32-byte
subblock of the L2 cache line, it works.
As with other Niagara-4 optimized routines, the key is to make sure to
avoid any usage of the %asi register, as reads and writes to it cost
at least 50 cycles.
For the user clear cases, we don't use these new routines, we use the
Niagara-1 variants instead. Those have to use %asi in an unavoidable
way.
A Niagara-4 8K page clear costs just under 600 cycles.
Add definitions of the MRU variants of the cache initializing store
ASIs. By default, cache initializing stores install the line as Least
Recently Used. If we know we're going to use the data immediately
(which is true for page copies and clears) we can use the Most
Recently Used variant, to decrease the likelyhood of the lines being
evicted before they get used.
Signed-off-by: David S. Miller <davem@davemloft.net>
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When force_successful_syscall() triggers, the syscall return status
reported the ptrace applications gets garbled.
Fix this by reordering the events and tests in the ret_sys_call path.
Signed-off-by: David S. Miller <davem@davemloft.net>
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After fixing a couple of brainos, it even seems to work. What's done here
is move of ->syscall_noerror right before FPDEPTH byte in ->flags and
using sth to [%g6 + TI_SYS_NOERROR] instead of stb to [%g6 + TI_FPDEPTH] in
both branches of etrap_save. AFAICS, that ought to be solid. Again,
deciding what to do with now unused delay slot of branch on ->syscall_noerror
and dealing with the order of tests in ret_from_sys is a separate question,
but at least that way we don't have to clean ->syscall_noerror in there at
all. AFAICS, it ought to be a clear win - sth is not going to cost more than
stb on etrap_64.S side of things, and we are losing write on syscalls.S one.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This is a preparatory patch for the introduction of NT_SIGINFO elf note.
Make the location of compat_siginfo_t uniform across eight architectures
which have it. Now it can be pulled in by including asm/compat.h or
linux/compat.h.
Most of the copies are verbatim. compat_uid[32]_t had to be replaced by
__compat_uid[32]_t. compat_uptr_t had to be moved up before
compat_siginfo_t in asm/compat.h on a several architectures (tile already
had it moved up). compat_sigval_t had to be relocated from linux/compat.h
to asm/compat.h.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Amerigo Wang <amwang@redhat.com>
Cc: "Jonathan M. Foote" <jmfoote@cert.org>
Cc: Roland McGrath <roland@hack.frob.com>
Cc: Pedro Alves <palves@redhat.com>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Historically, the top three bytes of personality have been used for
things such as ADDR_NO_RANDOMIZE, which made sense only for specific
architectures.
We now however have a flag there that is general no matter the
architecture (UNAME26); generally we have to be careful to preserve the
personality flags across exec().
This patch tries to fix all architectures that forcefully overwrite
personality flags during exec() (ppc32 and s390 have been fixed recently
by commits f9783ec862ea ("[S390] Do not clobber personality flags on
exec") and 59e4c3a2fe9c ("powerpc/32: Don't clobber personality flags on
exec") in a similar way already).
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Mark Salter <msalter@redhat.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Chen Liqin <liqin.chen@sunplusct.com>
Cc: Lennox Wu <lennox.wu@gmail.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Chris Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.infradead.org/users/dhowells/linux-headers
Pull preparatory patches for user API disintegration from David Howells:
"The patches herein prepare for the extraction of the Userspace API
bits from the various header files named in the Kbuild files.
New subdirectories are created under either include/uapi/ or
arch/x/include/uapi/ that correspond to the subdirectory containing
that file under include/ or arch/x/include/.
The new subdirs under the uapi/ directory are populated with Kbuild
files that mostly do nothing at this time. Further patches will
disintegrate the headers in each original directory and fill in the
Kbuild files as they do it.
These patches also:
(1) fix up #inclusions of "foo.h" rather than <foo.h>.
(2) Remove some redundant #includes from the DRM code.
(3) Make the kernel build infrastructure handle Kbuild files both in
the old places and the new UAPI place that both specify headers
to be exported.
(4) Fix some kernel tools that #include kernel headers during their
build.
I have compile tested this with allyesconfig against x86_64,
allmodconfig against i386 and a scattering of additional defconfigs of
other arches. Prepared for main script
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Dave Jones <davej@redhat.com>
Acked-by: H. Peter Anvin <hpa@zytor.com>"
* tag 'uapi-prep-20121002' of git://git.infradead.org/users/dhowells/linux-headers:
UAPI: Plumb the UAPI Kbuilds into the user header installation and checking
UAPI: x86: Differentiate the generated UAPI and internal headers
UAPI: Remove the objhdr-y export list
UAPI: Move linux/version.h
UAPI: Set up uapi/asm/Kbuild.asm
UAPI: x86: Fix insn_sanity build failure after UAPI split
UAPI: x86: Fix the test_get_len tool
UAPI: (Scripted) Set up UAPI Kbuild files
UAPI: Partition the header include path sets and add uapi/ header directories
UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers
UAPI: (Scripted) Convert #include "..." to #include <path/...> in drivers/gpu/
UAPI: (Scripted) Remove redundant DRM UAPI header #inclusions from drivers/gpu/.
UAPI: Refer to the DRM UAPI headers with <...> and from certain headers only
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Set up empty UAPI Kbuild files to be populated by the header splitter.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Dave Jones <davej@redhat.com>
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Pull sparc fixes from David Miller:
"Some quick fixes after today's merge-window pull"
1) Add missing dependency on Sparc DES driver, oops. From Dave Jones.
2) Tell GCC that prom_printf() is printf-like and fix the few
resultiing warnings. From Akinobu Mita.
3) Niagara-2 memcpy doesn't provide it's return value correctly in some
circumstances.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc: fix format string argument for prom_printf()
crypto: Build SPARC DES algorithms on SPARC only.
sparc64: Fix return value of Niagara-2 memcpy.
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prom_printf() takes printf style arguments. Specifing GCC's format
attribute reveals that there are several wrong usages of prom_printf().
This fixes those wrong format strings and arguments, and also leaves
format attributes in order to detect similar mistakes at compile time.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: sparclinux@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
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There's a Niagara 2 memcpy fix in this tree and I have
a Kconfig fix from Dave Jones which requires the sparc-next
changes which went upstream yesterday.
Signed-off-by: David S. Miller <davem@davemloft.net>
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It gets clobbered by the kernel's VISEntryHalf, so we have to save it
in a different register than the set clobbered by that macro.
The instance in glibc is OK and doesn't have this problem.
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs update from Al Viro:
- big one - consolidation of descriptor-related logics; almost all of
that is moved to fs/file.c
(BTW, I'm seriously tempted to rename the result to fd.c. As it is,
we have a situation when file_table.c is about handling of struct
file and file.c is about handling of descriptor tables; the reasons
are historical - file_table.c used to be about a static array of
struct file we used to have way back).
A lot of stray ends got cleaned up and converted to saner primitives,
disgusting mess in android/binder.c is still disgusting, but at least
doesn't poke so much in descriptor table guts anymore. A bunch of
relatively minor races got fixed in process, plus an ext4 struct file
leak.
- related thing - fget_light() partially unuglified; see fdget() in
there (and yes, it generates the code as good as we used to have).
- also related - bits of Cyrill's procfs stuff that got entangled into
that work; _not_ all of it, just the initial move to fs/proc/fd.c and
switch of fdinfo to seq_file.
- Alex's fs/coredump.c spiltoff - the same story, had been easier to
take that commit than mess with conflicts. The rest is a separate
pile, this was just a mechanical code movement.
- a few misc patches all over the place. Not all for this cycle,
there'll be more (and quite a few currently sit in akpm's tree)."
Fix up trivial conflicts in the android binder driver, and some fairly
simple conflicts due to two different changes to the sock_alloc_file()
interface ("take descriptor handling from sock_alloc_file() to callers"
vs "net: Providing protocol type via system.sockprotoname xattr of
/proc/PID/fd entries" adding a dentry name to the socket)
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (72 commits)
MAX_LFS_FILESIZE should be a loff_t
compat: fs: Generic compat_sys_sendfile implementation
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
btrfs: reada_extent doesn't need kref for refcount
coredump: move core dump functionality into its own file
coredump: prevent double-free on an error path in core dumper
usb/gadget: fix misannotations
fcntl: fix misannotations
ceph: don't abuse d_delete() on failure exits
hypfs: ->d_parent is never NULL or negative
vfs: delete surplus inode NULL check
switch simple cases of fget_light to fdget
new helpers: fdget()/fdput()
switch o2hb_region_dev_write() to fget_light()
proc_map_files_readdir(): don't bother with grabbing files
make get_file() return its argument
vhost_set_vring(): turn pollstart/pollstop into bool
switch prctl_set_mm_exe_file() to fget_light()
switch xfs_find_handle() to fget_light()
switch xfs_swapext() to fget_light()
...
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This function is used by sparc, powerpc and arm64 for compat support.
The patch adds a generic implementation which calls do_sendfile()
directly and avoids set_fs().
The sparc architecture has wrappers for the sign extensions while
powerpc relies on the compiler to do the this. The patch adds wrappers
for powerpc to handle the u32->int type conversion.
compat_sys_sendfile64() can be replaced by a sys_sendfile() call since
compat_loff_t has the same size as off_t on a 64-bit system.
On powerpc, the patch also changes the 64-bit sendfile call from
sys_sendile64 to sys_sendfile.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Pull networking changes from David Miller:
1) GRE now works over ipv6, from Dmitry Kozlov.
2) Make SCTP more network namespace aware, from Eric Biederman.
3) TEAM driver now works with non-ethernet devices, from Jiri Pirko.
4) Make openvswitch network namespace aware, from Pravin B Shelar.
5) IPV6 NAT implementation, from Patrick McHardy.
6) Server side support for TCP Fast Open, from Jerry Chu and others.
7) Packet BPF filter supports MOD and XOR, from Eric Dumazet and Daniel
Borkmann.
8) Increate the loopback default MTU to 64K, from Eric Dumazet.
9) Use a per-task rather than per-socket page fragment allocator for
outgoing networking traffic. This benefits processes that have very
many mostly idle sockets, which is quite common.
From Eric Dumazet.
10) Use up to 32K for page fragment allocations, with fallbacks to
smaller sizes when higher order page allocations fail. Benefits are
a) less segments for driver to process b) less calls to page
allocator c) less waste of space.
From Eric Dumazet.
11) Allow GRO to be used on GRE tunnels, from Eric Dumazet.
12) VXLAN device driver, one way to handle VLAN issues such as the
limitation of 4096 VLAN IDs yet still have some level of isolation.
From Stephen Hemminger.
13) As usual there is a large boatload of driver changes, with the scale
perhaps tilted towards the wireless side this time around.
Fix up various fairly trivial conflicts, mostly caused by the user
namespace changes.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1012 commits)
hyperv: Add buffer for extended info after the RNDIS response message.
hyperv: Report actual status in receive completion packet
hyperv: Remove extra allocated space for recv_pkt_list elements
hyperv: Fix page buffer handling in rndis_filter_send_request()
hyperv: Fix the missing return value in rndis_filter_set_packet_filter()
hyperv: Fix the max_xfer_size in RNDIS initialization
vxlan: put UDP socket in correct namespace
vxlan: Depend on CONFIG_INET
sfc: Fix the reported priorities of different filter types
sfc: Remove EFX_FILTER_FLAG_RX_OVERRIDE_IP
sfc: Fix loopback self-test with separate_tx_channels=1
sfc: Fix MCDI structure field lookup
sfc: Add parentheses around use of bitfield macro arguments
sfc: Fix null function pointer in efx_sriov_channel_type
vxlan: virtual extensible lan
igmp: export symbol ip_mc_leave_group
netlink: add attributes to fdb interface
tg3: unconditionally select HWMON support when tg3 is enabled.
Revert "net: ti cpsw ethernet: allow reading phy interface mode from DT"
gre: fix sparse warning
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Conflicts:
drivers/net/team/team.c
drivers/net/usb/qmi_wwan.c
net/batman-adv/bat_iv_ogm.c
net/ipv4/fib_frontend.c
net/ipv4/route.c
net/l2tp/l2tp_netlink.c
The team, fib_frontend, route, and l2tp_netlink conflicts were simply
overlapping changes.
qmi_wwan and bat_iv_ogm were of the "use HEAD" variety.
With help from Antonio Quartulli.
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch is a follow-up for patch "filter: add XOR instruction for use
with X/K" that implements BPF SPARC JIT parts for the BPF XOR operation.
Signed-off-by: Daniel Borkmann <daniel.borkmann@tik.ee.ethz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull sparc updates from David Miller:
"Largely this is simply adding support for the Niagara 4 cpu.
Major areas are perf events (chip now supports 4 counters and can
monitor any event on each counter), crypto (opcodes are availble for
sha1, sha256, sha512, md5, crc32c, AES, DES, CAMELLIA, and Kasumi
although the last is unsupported since we lack a generic crypto layer
Kasumi implementation), and an optimized memcpy.
Finally some cleanups by Peter Senna Tschudin."
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next: (47 commits)
sparc64: Fix trailing whitespace in NG4 memcpy.
sparc64: Fix comment type in NG4 copy from user.
sparc64: Add SPARC-T4 optimized memcpy.
drivers/sbus/char: removes unnecessary semicolon
arch/sparc/kernel/pci_sun4v.c: removes unnecessary semicolon
sparc64: Fix function argument comment in camellia_sparc64_key_expand asm.
sparc64: Fix IV handling bug in des_sparc64_cbc_decrypt
sparc64: Add auto-loading mechanism to crypto-opcode drivers.
sparc64: Add missing pr_fmt define to crypto opcode drivers.
sparc64: Adjust crypto priorities.
sparc64: Use cpu_pgsz_mask for linear kernel mapping config.
sparc64: Probe cpu page size support more portably.
sparc64: Support 2GB and 16GB page sizes for kernel linear mappings.
sparc64: Fix bugs in unrolled 256-bit loops.
sparc64: Avoid code duplication in crypto assembler.
sparc64: Unroll CTR crypt loops in AES driver.
sparc64: Unroll ECB decryption loops in AES driver.
sparc64: Unroll ECB encryption loops in AES driver.
sparc64: Add ctr mode support to AES driver.
sparc64: Move AES driver over to a methods based implementation.
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Signed-off-by: David S. Miller <davem@davemloft.net>
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Noticed by Greg Onufer.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Before After
-------------- --------------
bw_tcp: 1288.53 MB/sec 1637.77 MB/sec
bw_pipe: 1517.18 MB/sec 2107.61 MB/sec
bw_unix: 1838.38 MB/sec 2640.91 MB/sec
make -s -j128
allmodconfig 5min 49sec 5min 31sec
Signed-off-by: David S. Miller <davem@davemloft.net>
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removes unnecessary semicolon
Found by Coccinelle: http://coccinelle.lip6.fr/
Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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The IV wasn't being propagated properly past the first loop
iteration.
This bug lived only because the crypto layer tests for
cbc(des) do not have any cases that go more than one loop.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Just simply provide a device table containing an entry for sun4v cpus,
the capability mask checks in the drivers themselves will take care of
the rest.
This makes the bootup logs on pre-T4 cpus slightly more verbose, with
each driver indicating lack of support for the associated opcode(s).
But this isn't too much of a real problem.
I toyed with the idea of using explicit entries with compatability
fields of "SPARC-T4", "SPARC-T5", etc. but all future cpus will have
some subset of these opcodes available and this would just be one more
pointless thing to do as each new cpu is released with a new string.
Signed-off-by: David S. Miller <davem@davemloft.net>
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The hashes and crc32c had it, only the AES/DES/CAMELLIA drivers were
missing it.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Make the crypto opcode implementations have a higher priority than
those provides by the ring buffer based Niagara crypto device.
Also, several crypto opcode hashes were not setting the priority value
at all.
Signed-off-by: David S. Miller <davem@davemloft.net>
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This required a little bit of reordering of how we set up the memory
management early on.
We now only know the final values of kern_linear_pte_xor[] after we
take over the trap table and start processing TLB misses ourselves.
So once we fill those values in we re-clear the kernel's 4M TSB and
flush the TLBs. That way if we find we support larger than 4M pages
we won't have any stale smaller page size entries in the TSB.
SUN4U Panther support for larger page sizes should now be extremely
trivial but I have no hardware on which to test it and I believe
that some of the sun4u TLB miss assembler needs to be audited first
to make sure it really can handle larger than 4M PTEs properly.
Signed-off-by: David S. Miller <davem@davemloft.net>
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On sun4v, interrogate the machine description. This code is extremely
defensive in nature, and a lot of the checks can probably be removed.
On sun4u things are a lot simpler. There are the page sizes all chips
support, and then Panther adds 32MB and 256MB pages.
Report the probed value in /proc/cpuinfo
Signed-off-by: David S. Miller <davem@davemloft.net>
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SPARC-T4 supports 2GB pages.
So convert kpte_linear_bitmap into an array of 2-bit values which
index into kern_linear_pte_xor.
Now kern_linear_pte_xor is used for 4 page size aligned regions,
4MB, 256MB, 2GB, and 16GB respectively.
Enabling 2GB pages is currently hardcoded using a check against
sun4v_chip_type. In the future this will be done more cleanly
by interrogating the machine description which is the correct
way to determine this kind of thing.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Some dm-crypt testing revealed several bugs in the 256-bit unrolled
loops.
The DECRYPT_256_2() macro had two errors:
1) Missing reload of KEY registers %f60 and %f62
2) Missing "\" in penultimate line of definition.
In aes_sparc64_ecb_decrypt_256, we were storing the second half of the
encryption result from the wrong source registers.
In aes_sparc64_ctr_crypt_256 we have to be careful when we fall out of
the 32-byte-at-a-time loop and handle a trailing 16-byte chunk. In
that case we've clobbered the final key holding registers and have to
restore them before executing the ENCRYPT_256() macro. Inside of the
32-byte-at-a-time loop things are OK, because we do this key register
restoring during the first few rounds of the ENCRYPT_256_2() macro.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Put the opcode macros in a common header
Signed-off-by: David S. Miller <davem@davemloft.net>
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Before:
testing speed of ctr(aes) encryption
test 0 (128 bit key, 16 byte blocks): 1 operation in 206 cycles (16 bytes)
test 1 (128 bit key, 64 byte blocks): 1 operation in 244 cycles (64 bytes)
test 2 (128 bit key, 256 byte blocks): 1 operation in 360 cycles (256 bytes)
test 3 (128 bit key, 1024 byte blocks): 1 operation in 814 cycles (1024 bytes)
test 4 (128 bit key, 8192 byte blocks): 1 operation in 5021 cycles (8192 bytes)
test 5 (192 bit key, 16 byte blocks): 1 operation in 206 cycles (16 bytes)
test 6 (192 bit key, 64 byte blocks): 1 operation in 240 cycles (64 bytes)
test 7 (192 bit key, 256 byte blocks): 1 operation in 378 cycles (256 bytes)
test 8 (192 bit key, 1024 byte blocks): 1 operation in 939 cycles (1024 bytes)
test 9 (192 bit key, 8192 byte blocks): 1 operation in 6395 cycles (8192 bytes)
test 10 (256 bit key, 16 byte blocks): 1 operation in 209 cycles (16 bytes)
test 11 (256 bit key, 64 byte blocks): 1 operation in 249 cycles (64 bytes)
test 12 (256 bit key, 256 byte blocks): 1 operation in 414 cycles (256 bytes)
test 13 (256 bit key, 1024 byte blocks): 1 operation in 1073 cycles (1024 bytes)
test 14 (256 bit key, 8192 byte blocks): 1 operation in 7110 cycles (8192 bytes)
testing speed of ctr(aes) decryption
test 0 (128 bit key, 16 byte blocks): 1 operation in 225 cycles (16 bytes)
test 1 (128 bit key, 64 byte blocks): 1 operation in 233 cycles (64 bytes)
test 2 (128 bit key, 256 byte blocks): 1 operation in 344 cycles (256 bytes)
test 3 (128 bit key, 1024 byte blocks): 1 operation in 810 cycles (1024 bytes)
test 4 (128 bit key, 8192 byte blocks): 1 operation in 5021 cycles (8192 bytes)
test 5 (192 bit key, 16 byte blocks): 1 operation in 206 cycles (16 bytes)
test 6 (192 bit key, 64 byte blocks): 1 operation in 240 cycles (64 bytes)
test 7 (192 bit key, 256 byte blocks): 1 operation in 376 cycles (256 bytes)
test 8 (192 bit key, 1024 byte blocks): 1 operation in 938 cycles (1024 bytes)
test 9 (192 bit key, 8192 byte blocks): 1 operation in 6380 cycles (8192 bytes)
test 10 (256 bit key, 16 byte blocks): 1 operation in 214 cycles (16 bytes)
test 11 (256 bit key, 64 byte blocks): 1 operation in 251 cycles (64 bytes)
test 12 (256 bit key, 256 byte blocks): 1 operation in 411 cycles (256 bytes)
test 13 (256 bit key, 1024 byte blocks): 1 operation in 1070 cycles (1024 bytes)
test 14 (256 bit key, 8192 byte blocks): 1 operation in 7114 cycles (8192 bytes)
After:
testing speed of ctr(aes) encryption
test 0 (128 bit key, 16 byte blocks): 1 operation in 211 cycles (16 bytes)
test 1 (128 bit key, 64 byte blocks): 1 operation in 246 cycles (64 bytes)
test 2 (128 bit key, 256 byte blocks): 1 operation in 344 cycles (256 bytes)
test 3 (128 bit key, 1024 byte blocks): 1 operation in 799 cycles (1024 bytes)
test 4 (128 bit key, 8192 byte blocks): 1 operation in 4975 cycles (8192 bytes)
test 5 (192 bit key, 16 byte blocks): 1 operation in 210 cycles (16 bytes)
test 6 (192 bit key, 64 byte blocks): 1 operation in 236 cycles (64 bytes)
test 7 (192 bit key, 256 byte blocks): 1 operation in 365 cycles (256 bytes)
test 8 (192 bit key, 1024 byte blocks): 1 operation in 888 cycles (1024 bytes)
test 9 (192 bit key, 8192 byte blocks): 1 operation in 6055 cycles (8192 bytes)
test 10 (256 bit key, 16 byte blocks): 1 operation in 209 cycles (16 bytes)
test 11 (256 bit key, 64 byte blocks): 1 operation in 255 cycles (64 bytes)
test 12 (256 bit key, 256 byte blocks): 1 operation in 404 cycles (256 bytes)
test 13 (256 bit key, 1024 byte blocks): 1 operation in 1010 cycles (1024 bytes)
test 14 (256 bit key, 8192 byte blocks): 1 operation in 6669 cycles (8192 bytes)
testing speed of ctr(aes) decryption
test 0 (128 bit key, 16 byte blocks): 1 operation in 210 cycles (16 bytes)
test 1 (128 bit key, 64 byte blocks): 1 operation in 233 cycles (64 bytes)
test 2 (128 bit key, 256 byte blocks): 1 operation in 340 cycles (256 bytes)
test 3 (128 bit key, 1024 byte blocks): 1 operation in 818 cycles (1024 bytes)
test 4 (128 bit key, 8192 byte blocks): 1 operation in 4956 cycles (8192 bytes)
test 5 (192 bit key, 16 byte blocks): 1 operation in 206 cycles (16 bytes)
test 6 (192 bit key, 64 byte blocks): 1 operation in 239 cycles (64 bytes)
test 7 (192 bit key, 256 byte blocks): 1 operation in 361 cycles (256 bytes)
test 8 (192 bit key, 1024 byte blocks): 1 operation in 888 cycles (1024 bytes)
test 9 (192 bit key, 8192 byte blocks): 1 operation in 5996 cycles (8192 bytes)
test 10 (256 bit key, 16 byte blocks): 1 operation in 214 cycles (16 bytes)
test 11 (256 bit key, 64 byte blocks): 1 operation in 248 cycles (64 bytes)
test 12 (256 bit key, 256 byte blocks): 1 operation in 395 cycles (256 bytes)
test 13 (256 bit key, 1024 byte blocks): 1 operation in 1010 cycles (1024 bytes)
test 14 (256 bit key, 8192 byte blocks): 1 operation in 6664 cycles (8192 bytes)
Signed-off-by: David S. Miller <davem@davemloft.net>
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Before:
testing speed of ecb(aes) decryption
test 0 (128 bit key, 16 byte blocks): 1 operation in 223 cycles (16 bytes)
test 1 (128 bit key, 64 byte blocks): 1 operation in 230 cycles (64 bytes)
test 2 (128 bit key, 256 byte blocks): 1 operation in 325 cycles (256 bytes)
test 3 (128 bit key, 1024 byte blocks): 1 operation in 719 cycles (1024 bytes)
test 4 (128 bit key, 8192 byte blocks): 1 operation in 4266 cycles (8192 bytes)
test 5 (192 bit key, 16 byte blocks): 1 operation in 211 cycles (16 bytes)
test 6 (192 bit key, 64 byte blocks): 1 operation in 234 cycles (64 bytes)
test 7 (192 bit key, 256 byte blocks): 1 operation in 353 cycles (256 bytes)
test 8 (192 bit key, 1024 byte blocks): 1 operation in 808 cycles (1024 bytes)
test 9 (192 bit key, 8192 byte blocks): 1 operation in 5344 cycles (8192 bytes)
test 10 (256 bit key, 16 byte blocks): 1 operation in 214 cycles (16 bytes)
test 11 (256 bit key, 64 byte blocks): 1 operation in 243 cycles (64 bytes)
test 12 (256 bit key, 256 byte blocks): 1 operation in 393 cycles (256 bytes)
test 13 (256 bit key, 1024 byte blocks): 1 operation in 939 cycles (1024 bytes)
test 14 (256 bit key, 8192 byte blocks): 1 operation in 6039 cycles (8192 bytes)
After:
testing speed of ecb(aes) decryption
test 0 (128 bit key, 16 byte blocks): 1 operation in 226 cycles (16 bytes)
test 1 (128 bit key, 64 byte blocks): 1 operation in 231 cycles (64 bytes)
test 2 (128 bit key, 256 byte blocks): 1 operation in 313 cycles (256 bytes)
test 3 (128 bit key, 1024 byte blocks): 1 operation in 681 cycles (1024 bytes)
test 4 (128 bit key, 8192 byte blocks): 1 operation in 3964 cycles (8192 bytes)
test 5 (192 bit key, 16 byte blocks): 1 operation in 205 cycles (16 bytes)
test 6 (192 bit key, 64 byte blocks): 1 operation in 240 cycles (64 bytes)
test 7 (192 bit key, 256 byte blocks): 1 operation in 341 cycles (256 bytes)
test 8 (192 bit key, 1024 byte blocks): 1 operation in 770 cycles (1024 bytes)
test 9 (192 bit key, 8192 byte blocks): 1 operation in 5050 cycles (8192 bytes)
test 10 (256 bit key, 16 byte blocks): 1 operation in 216 cycles (16 bytes)
test 11 (256 bit key, 64 byte blocks): 1 operation in 250 cycles (64 bytes)
test 12 (256 bit key, 256 byte blocks): 1 operation in 371 cycles (256 bytes)
test 13 (256 bit key, 1024 byte blocks): 1 operation in 869 cycles (1024 bytes)
test 14 (256 bit key, 8192 byte blocks): 1 operation in 5494 cycles (8192 bytes)
Signed-off-by: David S. Miller <davem@davemloft.net>
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The AES opcodes have a 3 cycle latency, so by doing 32-bytes at a
time we avoid a pipeline bubble in between every round.
For the 256-bit key case, it looks like we're doing more work in
order to reload the KEY registers during the loop to make space
for scarce temporaries. But the load dual issues with the AES
operations so we get the KEY reloads essentially for free.
Before:
testing speed of ecb(aes) encryption
test 0 (128 bit key, 16 byte blocks): 1 operation in 264 cycles (16 bytes)
test 1 (128 bit key, 64 byte blocks): 1 operation in 231 cycles (64 bytes)
test 2 (128 bit key, 256 byte blocks): 1 operation in 329 cycles (256 bytes)
test 3 (128 bit key, 1024 byte blocks): 1 operation in 715 cycles (1024 bytes)
test 4 (128 bit key, 8192 byte blocks): 1 operation in 4248 cycles (8192 bytes)
test 5 (192 bit key, 16 byte blocks): 1 operation in 221 cycles (16 bytes)
test 6 (192 bit key, 64 byte blocks): 1 operation in 234 cycles (64 bytes)
test 7 (192 bit key, 256 byte blocks): 1 operation in 359 cycles (256 bytes)
test 8 (192 bit key, 1024 byte blocks): 1 operation in 803 cycles (1024 bytes)
test 9 (192 bit key, 8192 byte blocks): 1 operation in 5366 cycles (8192 bytes)
test 10 (256 bit key, 16 byte blocks): 1 operation in 209 cycles (16 bytes)
test 11 (256 bit key, 64 byte blocks): 1 operation in 255 cycles (64 bytes)
test 12 (256 bit key, 256 byte blocks): 1 operation in 379 cycles (256 bytes)
test 13 (256 bit key, 1024 byte blocks): 1 operation in 938 cycles (1024 bytes)
test 14 (256 bit key, 8192 byte blocks): 1 operation in 6041 cycles (8192 bytes)
After:
testing speed of ecb(aes) encryption
test 0 (128 bit key, 16 byte blocks): 1 operation in 266 cycles (16 bytes)
test 1 (128 bit key, 64 byte blocks): 1 operation in 256 cycles (64 bytes)
test 2 (128 bit key, 256 byte blocks): 1 operation in 305 cycles (256 bytes)
test 3 (128 bit key, 1024 byte blocks): 1 operation in 676 cycles (1024 bytes)
test 4 (128 bit key, 8192 byte blocks): 1 operation in 3981 cycles (8192 bytes)
test 5 (192 bit key, 16 byte blocks): 1 operation in 210 cycles (16 bytes)
test 6 (192 bit key, 64 byte blocks): 1 operation in 233 cycles (64 bytes)
test 7 (192 bit key, 256 byte blocks): 1 operation in 340 cycles (256 bytes)
test 8 (192 bit key, 1024 byte blocks): 1 operation in 766 cycles (1024 bytes)
test 9 (192 bit key, 8192 byte blocks): 1 operation in 5136 cycles (8192 bytes)
test 10 (256 bit key, 16 byte blocks): 1 operation in 206 cycles (16 bytes)
test 11 (256 bit key, 64 byte blocks): 1 operation in 268 cycles (64 bytes)
test 12 (256 bit key, 256 byte blocks): 1 operation in 368 cycles (256 bytes)
test 13 (256 bit key, 1024 byte blocks): 1 operation in 890 cycles (1024 bytes)
test 14 (256 bit key, 8192 byte blocks): 1 operation in 5718 cycles (8192 bytes)
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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Instead of testing and branching off of the key size on every
encrypt/decrypt call, use method ops assigned at key set time.
Reverse the order of float registers used for decryption to make
future changes easier.
Align all assembler routines on a 32-byte boundary.
Signed-off-by: David S. Miller <davem@davemloft.net>
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On SPARC-T4 fsrc2 has 1 cycle of latency, whereas fsrc1 has 11 cycles.
True story.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
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Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
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Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
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Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
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