| Commit message (Collapse) | Author | Age | Files | Lines |
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
- one regression at vsp1 driver
- some last time changes for the upcoming request API logic and for
stateless codec support. As the stateless codec "cedrus" driver is at
staging, don't apply the MPEG controls as part of the main V4L2 API,
as those may not be ready for production yet.
* tag 'media/v4.20-5' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
media: Add a Kconfig option for the Request API
media: extended-controls.rst: add note to the MPEG2 state controls
media: mpeg2-ctrls.h: move MPEG2 state controls to non-public header
media: vicodec: set state resolution from raw format
media: vivid: drop v4l2_ctrl_request_complete() from start_streaming
media: vb2: don't unbind/put the object when going to state QUEUED
media: vb2: keep a reference to the request until dqbuf
media: vb2: skip request checks for VIDIOC_PREPARE_BUF
media: vb2: don't call __vb2_queue_cancel if vb2_start_streaming failed
media: cedrus: Fix a NULL vs IS_ERR() check
media: vsp1: Fix LIF buffer thresholds
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The MPEG2 state controls for the cedrus stateless MPEG2 driver are
not yet stable. Move them out of the public headers into media/mpeg2-ctrls.h.
Eventually, once this has stabilized, they will be moved back to the
public headers.
Unfortunately I had to cast the control type to a u32 in two switch
statements to prevent a compiler warning about a control type define
not being part of the enum.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID subsystem fixes from Jiri Kosina:
- two device-specific quirks from Hans de Goede and Nic Soudée
- reintroduction of (mistakenly remocved) ABS_RESERVED from Peter
Hutterer
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
Input: restore EV_ABS ABS_RESERVED
HID: quirks: fix RetroUSB.com devices
HID: ite: Add USB id match for another ITE based keyboard rfkill key quirk
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ABS_RESERVED was added in d9ca1c990a7 and accidentally removed as part of
ffe0e7cf290f5c9 when the high-resolution scrolling code was removed.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Martin Kepplinger <martin.kepplinger@ginzinger.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
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Pull networking fixes from David Miller:
"A decent batch of fixes here. I'd say about half are for problems that
have existed for a while, and half are for new regressions added in
the 4.20 merge window.
1) Fix 10G SFP phy module detection in mvpp2, from Baruch Siach.
2) Revert bogus emac driver change, from Benjamin Herrenschmidt.
3) Handle BPF exported data structure with pointers when building
32-bit userland, from Daniel Borkmann.
4) Memory leak fix in act_police, from Davide Caratti.
5) Check RX checksum offload in RX descriptors properly in aquantia
driver, from Dmitry Bogdanov.
6) SKB unlink fix in various spots, from Edward Cree.
7) ndo_dflt_fdb_dump() only works with ethernet, enforce this, from
Eric Dumazet.
8) Fix FID leak in mlxsw driver, from Ido Schimmel.
9) IOTLB locking fix in vhost, from Jean-Philippe Brucker.
10) Fix SKB truesize accounting in ipv4/ipv6/netfilter frag memory
limits otherwise namespace exit can hang. From Jiri Wiesner.
11) Address block parsing length fixes in x25 from Martin Schiller.
12) IRQ and ring accounting fixes in bnxt_en, from Michael Chan.
13) For tun interfaces, only iface delete works with rtnl ops, enforce
this by disallowing add. From Nicolas Dichtel.
14) Use after free in liquidio, from Pan Bian.
15) Fix SKB use after passing to netif_receive_skb(), from Prashant
Bhole.
16) Static key accounting and other fixes in XPS from Sabrina Dubroca.
17) Partially initialized flow key passed to ip6_route_output(), from
Shmulik Ladkani.
18) Fix RTNL deadlock during reset in ibmvnic driver, from Thomas
Falcon.
19) Several small TCP fixes (off-by-one on window probe abort, NULL
deref in tail loss probe, SNMP mis-estimations) from Yuchung
Cheng"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (93 commits)
net/sched: cls_flower: Reject duplicated rules also under skip_sw
bnxt_en: Fix _bnxt_get_max_rings() for 57500 chips.
bnxt_en: Fix NQ/CP rings accounting on the new 57500 chips.
bnxt_en: Keep track of reserved IRQs.
bnxt_en: Fix CNP CoS queue regression.
net/mlx4_core: Correctly set PFC param if global pause is turned off.
Revert "net/ibm/emac: wrong bit is used for STA control"
neighbour: Avoid writing before skb->head in neigh_hh_output()
ipv6: Check available headroom in ip6_xmit() even without options
tcp: lack of available data can also cause TSO defer
ipv6: sr: properly initialize flowi6 prior passing to ip6_route_output
mlxsw: spectrum_switchdev: Fix VLAN device deletion via ioctl
mlxsw: spectrum_router: Relax GRE decap matching check
mlxsw: spectrum_switchdev: Avoid leaking FID's reference count
mlxsw: spectrum_nve: Remove easily triggerable warnings
ipv4: ipv6: netfilter: Adjust the frag mem limit when truesize changes
sctp: frag_point sanity check
tcp: fix NULL ref in tail loss probe
tcp: Do not underestimate rwnd_limited
net: use skb_list_del_init() to remove from RX sublists
...
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Alexei Starovoitov says:
====================
pull-request: bpf 2018-12-05
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) fix bpf uapi pointers for 32-bit architectures, from Daniel.
2) improve verifer ability to handle progs with a lot of branches, from Alexei.
3) strict btf checks, from Yonghong.
4) bpf_sk_lookup api cleanup, from Joe.
5) other misc fixes
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Improve the wording around socket lookup for reuseport sockets, and
ensure that both bpf.h headers are in sync.
Signed-off-by: Joe Stringer <joe@wand.net.nz>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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David Ahern and Nicolas Dichtel report that the handling of the netns id
0 is incorrect for the BPF socket lookup helpers: rather than finding
the netns with id 0, it is resolving to the current netns. This renders
the netns_id 0 inaccessible.
To fix this, adjust the API for the netns to treat all negative s32
values as a lookup in the current netns (including u64 values which when
truncated to s32 become negative), while any values with a positive
value in the signed 32-bit integer space would result in a lookup for a
socket in the netns corresponding to that id. As before, if the netns
with that ID does not exist, no socket will be found. Any netns outside
of these ranges will fail to find a corresponding socket, as those
values are reserved for future usage.
Signed-off-by: Joe Stringer <joe@wand.net.nz>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Joey Pabalinas <joeypabalinas@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Currently, pointer offsets in three BPF context structures are
broken in two scenarios: i) 32 bit compiled applications running
on 64 bit kernels, and ii) LLVM compiled BPF programs running
on 32 bit kernels. The latter is due to BPF target machine being
strictly 64 bit. So in each of the cases the offsets will mismatch
in verifier when checking / rewriting context access. Fix this by
providing a helper macro __bpf_md_ptr() that will enforce padding
up to 64 bit and proper alignment, and for context access a macro
bpf_ctx_range_ptr() which will cover full 64 bit member range on
32 bit archs. For flow_keys, we additionally need to force the
size check to sizeof(__u64) as with other pointer types.
Fixes: d58e468b1112 ("flow_dissector: implements flow dissector BPF hook")
Fixes: 4f738adba30a ("bpf: create tcp_bpf_ulp allowing BPF to monitor socket TX/RX data")
Fixes: 2dbb9b9e6df6 ("bpf: Introduce BPF_PROG_TYPE_SK_REUSEPORT")
Reported-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: David S. Miller <davem@davemloft.net>
Tested-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic fix from Arnd Bergmann:
"Multiple people reported a bug I introduced in asm-generic/unistd.h in
4.20, this is the obvious bugfix to get glibc and others to correctly
build again on new architectures that no longer provide the old
fstatat64() family of system calls"
* tag 'asm-generic-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
asm-generic: unistd.h: fixup broken macro include.
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The broken macros make the glibc compile error. If there is no
__NR3264_fstat*, we should also removed related definitions.
Reported-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
Fixes: bf4b6a7d371e ("y2038: Remove stat64 family from default syscall set")
[arnd: Both Marcin and Guo provided this patch to fix up my clearly
broken commit, I applied the version with the better changelog.]
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Signed-off-by: Mao Han <han_mao@c-sky.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Add the PR_SPEC_INDIRECT_BRANCH option for the PR_GET_SPECULATION_CTRL and
PR_SET_SPECULATION_CTRL prctls to allow fine grained per task control of
indirect branch speculation via STIBP and IBPB.
Invocations:
Check indirect branch speculation status with
- prctl(PR_GET_SPECULATION_CTRL, PR_SPEC_INDIRECT_BRANCH, 0, 0, 0);
Enable indirect branch speculation with
- prctl(PR_SET_SPECULATION_CTRL, PR_SPEC_INDIRECT_BRANCH, PR_SPEC_ENABLE, 0, 0);
Disable indirect branch speculation with
- prctl(PR_SET_SPECULATION_CTRL, PR_SPEC_INDIRECT_BRANCH, PR_SPEC_DISABLE, 0, 0);
Force disable indirect branch speculation with
- prctl(PR_SET_SPECULATION_CTRL, PR_SPEC_INDIRECT_BRANCH, PR_SPEC_FORCE_DISABLE, 0, 0);
See Documentation/userspace-api/spec_ctrl.rst.
Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Casey Schaufler <casey.schaufler@intel.com>
Cc: Asit Mallick <asit.k.mallick@intel.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Jon Masters <jcm@redhat.com>
Cc: Waiman Long <longman9394@gmail.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: Dave Stewart <david.c.stewart@intel.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20181125185005.866780996@linutronix.de
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git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID fixes from Jiri Kosina:
- revert of the high-resolution scrolling feature, as it breaks certain
hardware due to incompatibilities between Logitech and Microsoft
worlds. Peter Hutterer is working on a fixed implementation. Until
that is finished, revert by Benjamin Tissoires.
- revert of incorrect strncpy->strlcpy conversion in uhid, from David
Herrmann
- fix for buggy sendfile() implementation on uhid device node, from
Eric Biggers
- a few assorted device-ID specific quirks
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
Revert "Input: Add the `REL_WHEEL_HI_RES` event code"
Revert "HID: input: Create a utility class for counting scroll events"
Revert "HID: logitech: Add function to enable HID++ 1.0 "scrolling acceleration""
Revert "HID: logitech: Enable high-resolution scrolling on Logitech mice"
Revert "HID: logitech: Use LDJ_DEVICE macro for existing Logitech mice"
Revert "HID: logitech: fix a used uninitialized GCC warning"
Revert "HID: input: simplify/fix high-res scroll event handling"
HID: Add quirk for Primax PIXART OEM mice
HID: i2c-hid: Disable runtime PM for LG touchscreen
HID: multitouch: Add pointstick support for Cirque Touchpad
HID: steam: remove input device when a hid client is running.
Revert "HID: uhid: use strlcpy() instead of strncpy()"
HID: uhid: forbid UHID_CREATE under KERNEL_DS or elevated privileges
HID: input: Ignore battery reported by Symbol DS4308
HID: Add quirk for Microsoft PIXART OEM mouse
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This reverts commit aaf9978c3c0291ef3beaa97610bc9c3084656a85.
Quoting Peter:
There is a HID feature report called "Resolution Multiplier"
Described in the "Enhanced Wheel Support in Windows" doc and
the "USB HID Usage Tables" page 30.
http://download.microsoft.com/download/b/d/1/bd1f7ef4-7d72-419e-bc5c-9f79ad7bb66e/wheel.docx
https://www.usb.org/sites/default/files/documents/hut1_12v2.pdf
This was new for Windows Vista, so we're only a decade behind here. I only
accidentally found this a few days ago while debugging a stuck button on a
Microsoft mouse.
The docs above describe it like this: a wheel control by default sends
value 1 per notch. If the resolution multiplier is active, the wheel is
expected to send a value of $multiplier per notch (e.g. MS Sculpt mouse) or
just send events more often, i.e. for less physical motion (e.g. MS Comfort
mouse).
For the latter, you need the right HW of course. The Sculpt mouse has
tactile wheel clicks, so nothing really changes. The Comfort mouse has
continuous motion with no tactile clicks. Similar to the free-wheeling
Logitech mice but without any inertia.
Note that the doc also says that Vista and onwards *always* enable this
feature where available.
An example HID definition looks like this:
Usage Page Generic Desktop (0x01)
Usage Resolution Multiplier (0x48)
Logical Minimum 0
Logical Maximum 1
Physical Minimum 1
Physical Maximum 16
Report Size 2 # in bits
Report Count 1
Feature (Data, Var, Abs)
So the actual bits have values 0 or 1 and that reflects real values 1 or 16.
We've only seen single-bits so far, so there's low-res and hi-res, but
nothing in between.
The multiplier is available for HID usages "Wheel" and "AC Pan" (horiz wheel).
Microsoft suggests that
> Vendors should ship their devices with smooth scrolling disabled and allow
> Windows to enable it. This ensures that the device works like a regular HID
> device on legacy operating systems that do not support smooth scrolling.
(see the wheel doc linked above)
The mice that we tested so far do reset on unplug.
Device Support looks to be all (?) Microsoft mice but nothing else
Not supported:
- Logitech G500s, G303
- Roccat Kone XTD
- all the cheap Lenovo, HP, Dell, Logitech USB mice that come with a
workstation that I could find don't have it.
- Etekcity something something
- Razer Imperator
Supported:
- Microsoft Comfort Optical Mouse 3000 - yes, physical: 1:4
- Microsoft Sculpt Ergonomic Mouse - yes, physical: 1:12
- Microsoft Surface mouse - yes, physical: 1:4
So again, I think this is really just available on Microsoft mice, but
probably all decent MS mice released over the last decade.
Looking at the hardware itself:
- no noticeable notches in the weel
- low-res: 18 events per 360deg rotation (click angle 20 deg)
- high-res: 72 events per 360deg → matches multiplier of 4
- I can feel the notches during wheel turns
- low-res: 24 events per 360 deg rotation (click angle 15 deg)
- horiz wheel is tilt-based, continuous output value 1
- high-res: 24 events per 360deg with value 12 → matches multiplier of 12
- horiz wheel output rate doubles/triples?, values is 3
- It's a touch strip, not a wheel so no notches
- high-res: events have value 4 instead of 1
a bit strange given that it doesn't actually have notches.
Ok, why is this an issue for the current API? First, because the logitech
multiplier used in Harry's patches looks suspiciously like the Resolution
Multiplier so I think we should assume it's the same thing. Nestor, can you
shed some light on that?
- `REL_WHEEL` is defined as the number of notches, emulated where needed.
- `REL_WHEEL_HI_RES` is the movement of the user's finger in microns.
- `WM_MOUSEWHEEL` (Windows) is is a multiple of 120, defined as "the threshold
for action to be taken and one such action"
https://docs.microsoft.com/en-us/windows/desktop/inputdev/wm-mousewheel
If the multiplier is set to M, this means we need an accumulated value of M
until we can claim there was a wheel click. So after enabling the multiplier
and setting it to the maximum (like Windows):
- M units are 15deg rotation → 1 unit is 2620/M micron (see below). This is
the `REL_WHEEL_HI_RES` value.
- wheel diameter 20mm: 15 deg rotation is 2.62mm, 2620 micron (pi * 20mm /
(360deg/15deg))
- For every M units accumulated, send one `REL_WHEEL` event
The problem here is that we've now hardcoded 20mm/15 deg into the kernel and
we have no way of getting the size of the wheel or the click angle into the
kernel.
In userspace we now have to undo the kernel's calculation. If our click angle
is e.g. 20 degree we have to undo the (lossy) calculation from the kernel and
calculate the correct angle instead. This also means the 15 is a hardcoded
option forever and cannot be changed.
In hid-logitech-hidpp.c, the microns per unit is hardcoded per device.
Harry, did you measure those by hand? We'd need to update the kernel for
every device and there are 10 years worth of devices from MS alone.
The multiplier default is 8 which is in the right ballpark, so I'm pretty
sure this is the same as the Resolution Multiplier, just in HID++ lingo. And
given that the 120 magic factor is what Windows uses in the end, I can't
imagine Logitech rolling their own thing here. Nestor?
And we're already fairly inaccurate with the microns anyway. The MX Anywhere
2S has a click angle of 20 degrees (18 stops) and a 17mm wheel, so a wheel
notch is approximately 2.67mm, one event at multiplier 8 (1/8 of a notch)
would be 334 micron. That's only 80% of the fallback value of 406 in the
kernel. Multiplier 6 gives us 445micron (10% off). I'm assuming multiplier 7
doesn't exist because it's not a factor of 120.
Summary:
Best option may be to simply do what Windows is doing, all the HW manufacturers
have to use that approach after all. Switch `REL_WHEEL_HI_RES` to report in
fractions of 120, with 120 being one notch and divide that by the multiplier
for the actual events. So e.g. the Logitech multiplier 8 would send value 15
for each event in hi-res mode. This can be converted in userspace to
whatever userspace needs (combined with a hwdb there that tells you wheel
size/click angle/...).
Conflicts:
include/uapi/linux/input-event-codes.h -> I kept the new
reserved event in the code, so I had to adapt the revert
slightly
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Harry Cutts <hcutts@chromium.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
- add a missing include at v4l2-controls uAPI header
- minor kAPI update for the request API
- some fixes at CEC core
- use a lower minimum height for the virtual codec driver
- cleanup a gcc warning due to the lack of a fall though markup
- tc358743: Remove unnecessary self assignment
- fix the V4L event subscription logic
- docs: Document metadata format in struct v4l2_format
- omap3isp and ipu3-cio2: fix unbinding logic
* tag 'media/v4.20-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
media: ipu3-cio2: Use cio2_queues_exit
media: ipu3-cio2: Unregister device nodes first, then release resources
media: omap3isp: Unregister media device as first
media: docs: Document metadata format in struct v4l2_format
media: v4l: event: Add subscription to list before calling "add" operation
media: dm365_ipipeif: better annotate a fall though
media: Rename vb2_m2m_request_queue -> v4l2_m2m_request_queue
media: cec: increase debug level for 'queue full'
media: cec: check for non-OK/NACK conditions while claiming a LA
media: vicodec: lower minimum height to 360
media: tc358743: Remove unnecessary self assignment
media: v4l: fix uapi mpeg slice params definition
v4l2-controls: add a missing include
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Linux 4.20-rc1
* tag 'v4.20-rc1': (836 commits)
Linux 4.20-rc1
sched/topology: Fix off by one bug
memory_hotplug: cond_resched in __remove_pages
bfs: add sanity check at bfs_fill_super()
kernel/sysctl.c: remove duplicated include
kernel/kexec_file.c: remove some duplicated includes
mm, thp: consolidate THP gfp handling into alloc_hugepage_direct_gfpmask
ocfs2: fix clusters leak in ocfs2_defrag_extent()
ocfs2: dlmglue: clean up timestamp handling
ocfs2: don't put and assigning null to bh allocated outside
ocfs2: fix a misuse a of brelse after failing ocfs2_check_dir_entry
ocfs2: don't use iocb when EIOCBQUEUED returns
ocfs2: without quota support, avoid calling quota recovery
ocfs2: remove ocfs2_is_o2cb_active()
mm: thp: relax __GFP_THISNODE for MADV_HUGEPAGE mappings
include/linux/notifier.h: SRCU: fix ctags
mm: handle no memcg case in memcg_kmem_charge() properly
ARM: dts: stm32: update HASH1 dmas property on stm32mp157c
ARM: orion: avoid VLA in orion_mpp_conf
iov_iter: Fix 9p virtio breakage
...
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We get a headers_check warning about the newly defined ioctl command
structures:
./usr/include/linux/v4l2-controls.h:1105: found __[us]{8,16,32,64} type without #include <linux/types.h>
This is resolved by including linux/types.h, as suggested by the
warning, but there is another problem: Three of the four structures
have an odd number of __u8 headers, but are aligned to 32 bit in the
v4l2_ctrl_mpeg2_slice_params, so we get an implicit padding byte
for each one. To solve that, let's add explicit padding that can
be set to zero and verified in the kernel.
Fixes: c27bb30e7b6d ("media: v4l: Add definitions for MPEG-2 slice format and metadata")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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As warned by "make headers_check", the definition for the linux-specific
integer types is missing:
./usr/include/linux/v4l2-controls.h:1105: found __[us]{8,16,32,64} type without #include <linux/types.h>
Fixes: c27bb30e7b6d ("media: v4l: Add definitions for MPEG-2 slice format and metadata")
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Pull drm fixes from Dave Airlie:
"drm: i915, amdgpu, sun4i, exynos and etnaviv fixes:
- amdgpu has some display fixes, KFD ioctl fixes and a Vega20 bios
interaction fix.
- sun4i has some NULL checks added
- i915 has a 32-bit system fix, LPE audio oops, and HDMI2.0 clock
fixes.
- Exynos has a 3 regression fixes (one frame counter, fbdev missing,
dsi->panel check)
- Etnaviv has a single fencing fix for GPU recovery"
* tag 'drm-fixes-2018-11-11' of git://anongit.freedesktop.org/drm/drm: (39 commits)
drm/amd/amdgpu/dm: Fix dm_dp_create_fake_mst_encoder()
drm/amd/display: Drop reusing drm connector for MST
drm/amd/display: Cleanup MST non-atomic code workaround
drm/amd/powerplay: always use fast UCLK switching when UCLK DPM enabled
drm/amd/powerplay: set a default fclk/gfxclk ratio
drm/amdgpu/display/dce11: only enable FBC when selected
drm/amdgpu/display/dm: handle FBC dc feature parameter
drm/amdgpu/display/dc: add FBC to dc_config
drm/amdgpu: add DC feature mask module parameter
drm/amdgpu/display: check if fbc is available in set_static_screen_control (v2)
drm/amdgpu/vega20: add CLK base offset
drm/amd/display: Stop leaking planes
drm/amd/display: Fix misleading buffer information
Revert "drm/amd/display: set backlight level limit to 1"
drm/amd: Update atom_smu_info_v3_3 structure
drm/i915: Fix ilk+ watermarks when disabling pipes
drm/sun4i: tcon: prevent tcon->panel dereference if NULL
drm/sun4i: tcon: fix check of tcon->panel null pointer
drm/i915: Don't oops during modeset shutdown after lpe audio deinit
drm/i915: Mark pin flags as u64
...
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Consistently use types provided by <linux/types.h> via <drm/drm.h>
to fix struct kfd_ioctl_get_queue_wave_state_args userspace compilation errors.
Fixes: 5df099e8bc83f ("drm/amdkfd: Add wavefront context save state retrieval ioctl")
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Consistently use types provided by <linux/types.h> via <drm/drm.h>
to fix the following linux/kfd_ioctl.h userspace compilation errors:
/usr/include/linux/kfd_ioctl.h:250:2: error: unknown type name 'uint32_t'
uint32_t reset_type;
/usr/include/linux/kfd_ioctl.h:251:2: error: unknown type name 'uint32_t'
uint32_t reset_cause;
/usr/include/linux/kfd_ioctl.h:252:2: error: unknown type name 'uint32_t'
uint32_t memory_lost;
/usr/include/linux/kfd_ioctl.h:253:2: error: unknown type name 'uint32_t'
uint32_t gpu_id;
Fixes: 0c119abad7f0d ("drm/amd: Add kfd ioctl defines for hw_exception event")
Cc: <stable@vger.kernel.org> # v4.19
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Pull networking fixes from David Miller:
1) Handle errors mid-stream of an all dump, from Alexey Kodanev.
2) Fix build of openvswitch with certain combinations of netfilter
options, from Arnd Bergmann.
3) Fix interactions between GSO and BQL, from Eric Dumazet.
4) Don't put a '/' in RTL8201F's sysfs file name, from Holger
Hoffstätte.
5) S390 qeth driver fixes from Julian Wiedmann.
6) Allow ipv6 link local addresses for netconsole when both source and
destination are link local, from Matwey V. Kornilov.
7) Fix the BPF program address seen in /proc/kallsyms, from Song Liu.
8) Initialize mutex before use in dsa microchip driver, from Tristram
Ha.
9) Out-of-bounds access in hns3, from Yunsheng Lin.
10) Various netfilter fixes from Stefano Brivio, Jozsef Kadlecsik, Jiri
Slaby, Florian Westphal, Eric Westbrook, Andrey Ryabinin, and Pablo
Neira Ayuso.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (50 commits)
net: alx: make alx_drv_name static
net: bpfilter: fix iptables failure if bpfilter_umh is disabled
sock_diag: fix autoloading of the raw_diag module
net: core: netpoll: Enable netconsole IPv6 link local address
ipv6: properly check return value in inet6_dump_all()
rtnetlink: restore handling of dumpit return value in rtnl_dump_all()
net/ipv6: Move anycast init/cleanup functions out of CONFIG_PROC_FS
bonding/802.3ad: fix link_failure_count tracking
net: phy: realtek: fix RTL8201F sysfs name
sctp: define SCTP_SS_DEFAULT for Stream schedulers
sctp: fix strchange_flags name for Stream Change Event
mlxsw: spectrum: Fix IP2ME CPU policer configuration
openvswitch: fix linking without CONFIG_NF_CONNTRACK_LABELS
qed: fix link config error handling
net: hns3: Fix for out-of-bounds access when setting pfc back pressure
net/mlx4_en: use __netdev_tx_sent_queue()
net: do not abort bulk send on BQL status
net: bql: add __netdev_tx_sent_queue()
s390/qeth: report 25Gbit link speed
s390/qeth: sanitize ARP requests
...
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Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains the first batch of Netfilter fixes for
your net tree:
1) Fix splat with IPv6 defragmenting locally generated fragments,
from Florian Westphal.
2) Fix Incorrect check for missing attribute in nft_osf.
3) Missing INT_MIN & INT_MAX definition for netfilter bridge uapi
header, from Jiri Slaby.
4) Revert map lookup in nft_numgen, this is already possible with
the existing infrastructure without this extension.
5) Fix wrong listing of set reference counter, make counter
synchronous again, from Stefano Brivio.
6) Fix CIDR 0 in hash:net,port,net, from Eric Westbrook.
7) Fix allocation failure with large set, use kvcalloc().
From Andrey Ryabinin.
8) No need to disable BH when fetch ip set comment, patch from
Jozsef Kadlecsik.
9) Sanity check for valid sysfs entry in xt_IDLETIMER, from
Taehee Yoo.
10) Fix suspicious rcu usage via ip_set() macro at netlink dump,
from Jozsef Kadlecsik.
11) Fix setting default timeout via nfnetlink_cttimeout, this
comes with preparation patch to add nf_{tcp,udp,...}_pernet()
helper.
12) Allow ebtables table nat to be of filter type via nft_compat.
From Florian Westphal.
13) Incorrect calculation of next bucket in early_drop, do no bump
hash value, update bucket counter instead. From Vasily Khoruzhick.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Laura found a better way to do this from userspace without requiring
kernel infrastructure, revert this.
Fixes: 978d8f9055c3 ("netfilter: nft_numgen: add map lookups for numgen random operations")
Signed-off-by: Laura Garcia Liebana <nevola@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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With 4.19, programs like ebtables fail to build when they include
"linux/netfilter_bridge.h". It is caused by commit 94276fa8a2a4 which
added a use of INT_MIN and INT_MAX to the header:
: In file included from /usr/include/linux/netfilter_bridge/ebtables.h:18,
: from include/ebtables_u.h:28,
: from communication.c:23:
: /usr/include/linux/netfilter_bridge.h:30:20: error: 'INT_MIN' undeclared here (not in a function)
: NF_BR_PRI_FIRST = INT_MIN,
: ^~~~~~~
Define these constants by including "limits.h" when !__KERNEL__ (the
same way as for other netfilter_* headers).
Fixes: 94276fa8a2a4 ("netfilter: bridge: Expose nf_tables bridge hook priorities through uapi")
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: Máté Eckl <ecklm94@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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According to rfc8260#section-4.3.2, SCTP_SS_DEFAULT is required to
defined as SCTP_SS_FCFS or SCTP_SS_RR.
SCTP_SS_FCFS is used for SCTP_SS_DEFAULT's value in this patch.
Fixes: 5bbbbe32a431 ("sctp: introduce stream scheduler foundations")
Reported-by: Jianwen Ji <jiji@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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As defined in rfc6525#section-6.1.3, SCTP_STREAM_CHANGE_DENIED
and SCTP_STREAM_CHANGE_FAILED should be used instead of
SCTP_ASSOC_CHANGE_DENIED and SCTP_ASSOC_CHANGE_FAILED.
To keep the compatibility, fix it by adding two macros.
Fixes: b444153fb5a6 ("sctp: add support for generating add stream change event notification")
Reported-by: Jianwen Ji <jiji@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates and fixes from Ingo Molnar:
"These are almost all tooling updates: 'perf top', 'perf trace' and
'perf script' fixes and updates, an UAPI header sync with the merge
window versions, license marker updates, much improved Sparc support
from David Miller, and a number of fixes"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (66 commits)
perf intel-pt/bts: Calculate cpumode for synthesized samples
perf intel-pt: Insert callchain context into synthesized callchains
perf tools: Don't clone maps from parent when synthesizing forks
perf top: Start display thread earlier
tools headers uapi: Update linux/if_link.h header copy
tools headers uapi: Update linux/netlink.h header copy
tools headers: Sync the various kvm.h header copies
tools include uapi: Update linux/mmap.h copy
perf trace beauty: Use the mmap flags table generated from headers
perf beauty: Wire up the mmap flags table generator to the Makefile
perf beauty: Add a generator for MAP_ mmap's flag constants
tools include uapi: Update asound.h copy
tools arch uapi: Update asm-generic/unistd.h and arm64 unistd.h copies
tools include uapi: Update linux/fs.h copy
perf callchain: Honour the ordering of PERF_CONTEXT_{USER,KERNEL,etc}
perf cs-etm: Correct CPU mode for samples
perf unwind: Take pgoff into account when reporting elf to libdwfl
perf top: Do not use overwrite mode by default
perf top: Allow disabling the overwrite mode
perf trace: Beautify mount's first pathname arg
...
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When synthesizing FORK events, we are trying to create thread objects
for the already running tasks on the machine.
Normally, for a kernel FORK event, we want to clone the parent's maps
because that is what the kernel just did.
But when synthesizing, this should not be done. If we do, we end up
with overlapping maps as we process the sythesized MMAP2 events that
get delivered shortly thereafter.
Use the FORK event misc flags in an internal way to signal this
situation, so we can elide the map clone when appropriate.
Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Link: http://lkml.kernel.org/r/20181030.222404.2085088822877051075.davem@davemloft.net
[ Added comment about flag use in machine__process_fork_event(),
use ternary op in thread__clone_map_groups() as suggested by Jiri ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull keys updates from James Morris:
"Provide five new operations in the key_type struct that can be used to
provide access to asymmetric key operations. These will be implemented
for the asymmetric key type in a later patch and may refer to a key
retained in RAM by the kernel or a key retained in crypto hardware.
int (*asym_query)(const struct kernel_pkey_params *params,
struct kernel_pkey_query *info);
int (*asym_eds_op)(struct kernel_pkey_params *params,
const void *in, void *out);
int (*asym_verify_signature)(struct kernel_pkey_params *params,
const void *in, const void *in2);
Since encrypt, decrypt and sign are identical in their interfaces,
they're rolled together in the asym_eds_op() operation and there's an
operation ID in the params argument to distinguish them.
Verify is different in that we supply the data and the signature
instead and get an error value (or 0) as the only result on the
expectation that this may well be how a hardware crypto device may
work"
* 'next-keys2' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (22 commits)
KEYS: asym_tpm: Add support for the sign operation [ver #2]
KEYS: asym_tpm: Implement tpm_sign [ver #2]
KEYS: asym_tpm: Implement signature verification [ver #2]
KEYS: asym_tpm: Implement the decrypt operation [ver #2]
KEYS: asym_tpm: Implement tpm_unbind [ver #2]
KEYS: asym_tpm: Add loadkey2 and flushspecific [ver #2]
KEYS: Move trusted.h to include/keys [ver #2]
KEYS: trusted: Expose common functionality [ver #2]
KEYS: asym_tpm: Implement encryption operation [ver #2]
KEYS: asym_tpm: Implement pkey_query [ver #2]
KEYS: Add parser for TPM-based keys [ver #2]
KEYS: asym_tpm: extract key size & public key [ver #2]
KEYS: asym_tpm: add skeleton for asym_tpm [ver #2]
crypto: rsa-pkcs1pad: Allow hash to be optional [ver #2]
KEYS: Implement PKCS#8 RSA Private Key parser [ver #2]
KEYS: Implement encrypt, decrypt and sign for software asymmetric key [ver #2]
KEYS: Allow the public_key struct to hold a private key [ver #2]
KEYS: Provide software public key query function [ver #2]
KEYS: Make the X.509 and PKCS7 parsers supply the sig encoding type [ver #2]
KEYS: Provide missing asymmetric key subops for new key type ops [ver #2]
...
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Provide five keyctl functions that permit userspace to make use of the new
key type ops for accessing and driving asymmetric keys.
(*) Query an asymmetric key.
long keyctl(KEYCTL_PKEY_QUERY,
key_serial_t key, unsigned long reserved,
struct keyctl_pkey_query *info);
Get information about an asymmetric key. The information is returned
in the keyctl_pkey_query struct:
__u32 supported_ops;
A bit mask of flags indicating which ops are supported. This is
constructed from a bitwise-OR of:
KEYCTL_SUPPORTS_{ENCRYPT,DECRYPT,SIGN,VERIFY}
__u32 key_size;
The size in bits of the key.
__u16 max_data_size;
__u16 max_sig_size;
__u16 max_enc_size;
__u16 max_dec_size;
The maximum sizes in bytes of a blob of data to be signed, a signature
blob, a blob to be encrypted and a blob to be decrypted.
reserved must be set to 0. This is intended for future use to hand
over one or more passphrases needed unlock a key.
If successful, 0 is returned. If the key is not an asymmetric key,
EOPNOTSUPP is returned.
(*) Encrypt, decrypt, sign or verify a blob using an asymmetric key.
long keyctl(KEYCTL_PKEY_ENCRYPT,
const struct keyctl_pkey_params *params,
const char *info,
const void *in,
void *out);
long keyctl(KEYCTL_PKEY_DECRYPT,
const struct keyctl_pkey_params *params,
const char *info,
const void *in,
void *out);
long keyctl(KEYCTL_PKEY_SIGN,
const struct keyctl_pkey_params *params,
const char *info,
const void *in,
void *out);
long keyctl(KEYCTL_PKEY_VERIFY,
const struct keyctl_pkey_params *params,
const char *info,
const void *in,
const void *in2);
Use an asymmetric key to perform a public-key cryptographic operation
a blob of data.
The parameter block pointed to by params contains a number of integer
values:
__s32 key_id;
__u32 in_len;
__u32 out_len;
__u32 in2_len;
For a given operation, the in and out buffers are used as follows:
Operation ID in,in_len out,out_len in2,in2_len
======================= =============== =============== ===========
KEYCTL_PKEY_ENCRYPT Raw data Encrypted data -
KEYCTL_PKEY_DECRYPT Encrypted data Raw data -
KEYCTL_PKEY_SIGN Raw data Signature -
KEYCTL_PKEY_VERIFY Raw data - Signature
info is a string of key=value pairs that supply supplementary
information.
The __spare space in the parameter block must be set to 0. This is
intended, amongst other things, to allow the passing of passphrases
required to unlock a key.
If successful, encrypt, decrypt and sign all return the amount of data
written into the output buffer. Verification returns 0 on success.
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Marcel Holtmann <marcel@holtmann.org>
Reviewed-by: Marcel Holtmann <marcel@holtmann.org>
Reviewed-by: Denis Kenzior <denkenz@gmail.com>
Tested-by: Denis Kenzior <denkenz@gmail.com>
Signed-off-by: James Morris <james.morris@microsoft.com>
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Provide five new operations in the key_type struct that can be used to
provide access to asymmetric key operations. These will be implemented for
the asymmetric key type in a later patch and may refer to a key retained in
RAM by the kernel or a key retained in crypto hardware.
int (*asym_query)(const struct kernel_pkey_params *params,
struct kernel_pkey_query *info);
int (*asym_eds_op)(struct kernel_pkey_params *params,
const void *in, void *out);
int (*asym_verify_signature)(struct kernel_pkey_params *params,
const void *in, const void *in2);
Since encrypt, decrypt and sign are identical in their interfaces, they're
rolled together in the asym_eds_op() operation and there's an operation ID
in the params argument to distinguish them.
Verify is different in that we supply the data and the signature instead
and get an error value (or 0) as the only result on the expectation that
this may well be how a hardware crypto device may work.
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Marcel Holtmann <marcel@holtmann.org>
Reviewed-by: Marcel Holtmann <marcel@holtmann.org>
Reviewed-by: Denis Kenzior <denkenz@gmail.com>
Tested-by: Denis Kenzior <denkenz@gmail.com>
Signed-off-by: James Morris <james.morris@microsoft.com>
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Pull virtio/vhost updates from Michael Tsirkin:
"Fixes and tweaks:
- virtio balloon page hinting support
- vhost scsi control queue
- misc fixes"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
MAINTAINERS: remove reference to bogus vsock file
vhost/scsi: Use common handling code in request queue handler
vhost/scsi: Extract common handling code from control queue handler
vhost/scsi: Respond to control queue operations
vhost/scsi: truncate T10 PI iov_iter to prot_bytes
virtio-balloon: VIRTIO_BALLOON_F_PAGE_POISON
mm/page_poison: expose page_poisoning_enabled to kernel modules
virtio-balloon: VIRTIO_BALLOON_F_FREE_PAGE_HINT
kvm_config: add CONFIG_VIRTIO_MENU
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The VIRTIO_BALLOON_F_PAGE_POISON feature bit is used to indicate if the
guest is using page poisoning. Guest writes to the poison_val config
field to tell host about the page poisoning value that is in use.
Suggested-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Wei Wang <wei.w.wang@intel.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Negotiation of the VIRTIO_BALLOON_F_FREE_PAGE_HINT feature indicates the
support of reporting hints of guest free pages to host via virtio-balloon.
Currenlty, only free page blocks of MAX_ORDER - 1 are reported. They are
obtained one by one from the mm free list via the regular allocation
function.
Host requests the guest to report free page hints by sending a new cmd id
to the guest via the free_page_report_cmd_id configuration register. When
the guest starts to report, it first sends a start cmd to host via the
free page vq, which acks to host the cmd id received. When the guest
finishes reporting free pages, a stop cmd is sent to host via the vq.
Host may also send a stop cmd id to the guest to stop the reporting.
VIRTIO_BALLOON_CMD_ID_STOP: Host sends this cmd to stop the guest
reporting.
VIRTIO_BALLOON_CMD_ID_DONE: Host sends this cmd to tell the guest that
the reported pages are ready to be freed.
Why does the guest free the reported pages when host tells it is ready to
free?
This is because freeing pages appears to be expensive for live migration.
free_pages() dirties memory very quickly and makes the live migraion not
converge in some cases. So it is good to delay the free_page operation
when the migration is done, and host sends a command to guest about that.
Why do we need the new VIRTIO_BALLOON_CMD_ID_DONE, instead of reusing
VIRTIO_BALLOON_CMD_ID_STOP?
This is because live migration is usually done in several rounds. At the
end of each round, host needs to send a VIRTIO_BALLOON_CMD_ID_STOP cmd to
the guest to stop (or say pause) the reporting. The guest resumes the
reporting when it receives a new command id at the beginning of the next
round. So we need a new cmd id to distinguish between "stop reporting" and
"ready to free the reported pages".
TODO:
- Add a batch page allocation API to amortize the allocation overhead.
Signed-off-by: Wei Wang <wei.w.wang@intel.com>
Signed-off-by: Liang Li <liang.z.li@intel.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux
Pull more RISC-V updates from Palmer Dabbelt:
"This contains the follow-on patches I'd like to target for the 4.20
merge window. I'm being somewhat conservative here, as while there are
a few patches on the mailing list that were posted early in the merge
window I'd like to let those bake for another round -- this was a
fairly big release as far as RISC-V is concerened, and we need to walk
before we can run.
As far as the patches that made it go:
- A patch to ignore offline CPUs when calculating AT_HWCAP. This
should fix GDB on the HiFive unleashed, which has an embedded core
for hart 0 which is exposed to Linux as an offline CPU.
- A move of EM_RISCV to elf-em.h, which is where it should have been
to begin with.
- I've also removed the 64-bit divide routines. I know I'm not really
playing by my own rules here because I posted the patches this
morning, but since they shouldn't be in the kernel I think it's
better to err on the side of going too fast here.
I don't anticipate any more patch sets for the merge window"
* tag 'riscv-for-linus-4.20-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux:
Move EM_RISCV into elf-em.h
RISC-V: properly determine hardware caps
Revert "lib: Add umoddi3 and udivmoddi4 of GCC library routines"
Revert "RISC-V: Select GENERIC_LIB_UMODDI3 on RV32"
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This should never have been inside our arch port to begin with, it's
just a relic from when we were maintaining out of tree patches.
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Paul Walmsley <paul.walmsley@sifive.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: David Abdurachmanov <david.abdurachmanov@gmail.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse updates from Miklos Szeredi:
"As well as the usual bug fixes, this adds the following new features:
- cached readdir and readlink
- max I/O size increased from 128k to 1M
- improved performance and scalability of request queues
- copy_file_range support
The only non-fuse bits are trivial cleanups of macros in
<linux/bitops.h>"
* tag 'fuse-update-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: (31 commits)
fuse: enable caching of symlinks
fuse: only invalidate atime in direct read
fuse: don't need GETATTR after every READ
fuse: allow fine grained attr cache invaldation
bitops: protect variables in bit_clear_unless() macro
bitops: protect variables in set_mask_bits() macro
fuse: realloc page array
fuse: add max_pages to init_out
fuse: allocate page array more efficiently
fuse: reduce size of struct fuse_inode
fuse: use iversion for readdir cache verification
fuse: use mtime for readdir cache verification
fuse: add readdir cache version
fuse: allow using readdir cache
fuse: allow caching readdir
fuse: extract fuse_emit() helper
fuse: add FOPEN_CACHE_DIR
fuse: split out readdir.c
fuse: Use hash table to link processing request
fuse: kill req->intr_unique
...
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FUSE file reads are cached in the page cache, but symlink reads are
not. This patch enables FUSE READLINK operations to be cached which
can improve performance of some FUSE workloads.
In particular, I'm working on a FUSE filesystem for access to source
code and discovered that about a 10% improvement to build times is
achieved with this patch (there are a lot of symlinks in the source
tree).
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
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Replace FUSE_MAX_PAGES_PER_REQ with the configurable parameter max_pages to
improve performance.
Old RFC with detailed description of the problem and many fixes by Mitsuo
Hayasaka (mitsuo.hayasaka.hu@hitachi.com):
- https://lkml.org/lkml/2012/7/5/136
We've encountered performance degradation and fixed it on a big and complex
virtual environment.
Environment to reproduce degradation and improvement:
1. Add lag to user mode FUSE
Add nanosleep(&(struct timespec){ 0, 1000 }, NULL); to xmp_write_buf in
passthrough_fh.c
2. patch UM fuse with configurable max_pages parameter. The patch will be
provided latter.
3. run test script and perform test on tmpfs
fuse_test()
{
cd /tmp
mkdir -p fusemnt
passthrough_fh -o max_pages=$1 /tmp/fusemnt
grep fuse /proc/self/mounts
dd conv=fdatasync oflag=dsync if=/dev/zero of=fusemnt/tmp/tmp \
count=1K bs=1M 2>&1 | grep -v records
rm fusemnt/tmp/tmp
killall passthrough_fh
}
Test results:
passthrough_fh /tmp/fusemnt fuse.passthrough_fh \
rw,nosuid,nodev,relatime,user_id=0,group_id=0 0 0
1073741824 bytes (1.1 GB) copied, 1.73867 s, 618 MB/s
passthrough_fh /tmp/fusemnt fuse.passthrough_fh \
rw,nosuid,nodev,relatime,user_id=0,group_id=0,max_pages=256 0 0
1073741824 bytes (1.1 GB) copied, 1.15643 s, 928 MB/s
Obviously with bigger lag the difference between 'before' and 'after'
will be more significant.
Mitsuo Hayasaka, in 2012 (https://lkml.org/lkml/2012/7/5/136),
observed improvement from 400-550 to 520-740.
Signed-off-by: Constantine Shulyupin <const@MakeLinux.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
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Add flag returned by OPENDIR request to allow kernel to cache directory
contents in page cache. The effect of FOPEN_CACHE_DIR is twofold:
a) if not already cached, it writes entries into the cache
b) if already cached, it allows reading entries from the cache
The FOPEN_KEEP_CACHE has the same effect as on regular files: unless this
flag is given the cache is cleared upon completion of open.
So FOPEN_KEEP_CACHE and FOPEN_KEEP_CACHE flags should be used together to
make use of the directory caching facility introduced in the following
patches.
The FUSE_AUTO_INVAL_DATA flag returned in INIT reply also has the same
affect on the directory cache as it has on data cache for regular files.
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
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There are several FUSE filesystems that can implement server-side copy
or other efficient copy/duplication/clone methods. The copy_file_range()
syscall is the standard interface that users have access to while not
depending on external libraries that bypass FUSE.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
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Pull VFIO updates from Alex Williamson:
- EDID interfaces for vfio devices supporting display extensions (Gerd
Hoffmann)
- Generically select Type-1 IOMMU model support on ARM/ARM64 (Geert
Uytterhoeven)
- Quirk for VFs reporting INTx pin (Alex Williamson)
- Fix error path memory leak in MSI support (Li Qiang)
* tag 'vfio-v4.20-rc1.v2' of git://github.com/awilliam/linux-vfio:
vfio: add edid support to mbochs sample driver
vfio: add edid api for display (vgpu) devices.
drivers/vfio: Allow type-1 IOMMU instantiation with all ARM/ARM64 IOMMUs
vfio/pci: Mask buggy SR-IOV VF INTx support
vfio/pci: Fix potential memory leak in vfio_msi_cap_len
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This allows to set EDID monitor information for the vgpu display, for a
more flexible display configuration, using a special vfio region. Check
the comment describing struct vfio_region_gfx_edid for more details.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull new experimental media request API from Mauro Carvalho Chehab:
"A new media request API
This API is needed to support device drivers that can dynamically
change their parameters for each new frame. The latest versions of
Google camera and codec HAL depends on such feature.
At this stage, it supports only stateless codecs.
It has been discussed for a long time (at least over the last 3-4
years), and we finally reached to something that seem to work.
This series contain both the API and core changes required to support
it and a new m2m decoder driver (cedrus).
As the current API is still experimental, the only real driver using
it (cedrus) was added at staging[1]. We intend to keep it there for a
while, in order to test the API. Only when we're sure that this API
works for other cases (like encoders), we'll move this driver out of
staging and set the API into a stone.
[1] We added support for the vivid virtual driver (used only for
testing) to it too, as it makes easier to test the API for the ones
that don't have the cedrus hardware"
* tag 'media/v4.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (53 commits)
media: dt-bindings: Document the Rockchip VPU bindings
media: platform: Add Cedrus VPU decoder driver
media: dt-bindings: media: Document bindings for the Cedrus VPU driver
media: v4l: Add definition for the Sunxi tiled NV12 format
media: v4l: Add definitions for MPEG-2 slice format and metadata
media: videobuf2-core: Rework and rename helper for request buffer count
media: v4l2-ctrls.c: initialize an error return code with zero
media: v4l2-compat-ioctl32.c: add missing documentation for a field
media: media-request: update documentation
media: media-request: EPERM -> EACCES/EBUSY
media: v4l2-ctrls: improve media_request_(un)lock_for_update
media: v4l2-ctrls: use media_request_(un)lock_for_access
media: media-request: add media_request_(un)lock_for_access
media: vb2: set reqbufs/create_bufs capabilities
media: videodev2.h: add new capabilities for buffer types
media: buffer.rst: only set V4L2_BUF_FLAG_REQUEST_FD for QBUF
media: v4l2-ctrls: return -EACCES if request wasn't completed
media: media-request: return -EINVAL for invalid request_fds
media: vivid: add request support
media: vivid: add mc
...
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This introduces support for the Sunxi tiled NV12 format, where each
component of the YUV frame is divided into macroblocks. Hence, the size
of each plane requires specific alignment. The pixels inside each
macroblock are coded in linear order (line after line from top to
bottom).
This tiled NV12 format is used by the video engine on Allwinner
platforms: it is the default format for decoded frames (and the only
one available in the oldest supported platforms).
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Stateless video decoding engines require both the MPEG-2 slices and
associated metadata from the video stream in order to decode frames.
This introduces definitions for a new pixel format, describing buffers
with MPEG-2 slice data, as well as control structure sfor passing the
frame metadata to drivers.
This is based on work from both Florent Revest and Hugues Fruchet.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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VIDIOC_REQBUFS and VIDIOC_CREATE_BUFFERS will return capabilities
telling userspace what the given buffer type is capable of.
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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When queuing buffers allow for passing the request that should
be associated with this buffer.
If V4L2_BUF_FLAG_REQUEST_FD is set, then request_fd is used as
the file descriptor.
If a buffer is stored in a request, but not yet queued to the
driver, then V4L2_BUF_FLAG_IN_REQUEST is set.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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If 'which' is V4L2_CTRL_WHICH_REQUEST_VAL, then the 'request_fd' field
can be used to specify a request for the G/S/TRY_EXT_CTRLS ioctls.
Signed-off-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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