ARG_PTR_TO_UNINIT_MAP_VALUE argument is a pointer to a memory zone
used to save the value of a map. Basically the same as
ARG_PTR_TO_UNINIT_MEM, but the size has not be passed as an extra
argument.
This will be used in the following patch that implements some new
helpers that receive a pointer to be filled with a map value.
Signed-off-by: Mauricio Vasquez B <mauricio.vasquez@polito.it>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
In the following patches queue and stack maps (FIFO and LIFO
datastructures) will be implemented. In order to avoid confusion and
a possible name clash rename stack_map_ops to stack_trace_map_ops
Signed-off-by: Mauricio Vasquez B <mauricio.vasquez@polito.it>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This patch adds a mechanism for assigning each rproc dump segment with
a custom dump function and private data. The dump function is to be
called for each rproc segment during coredump if assigned.
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
[bjorn: reordred arguments to rproc_coredump_add_custom_segment()]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Introduce custom dump function and private data per remoteproc dump
segment. The dump function is responsible for filling the device memory
segment associated with coredump
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
net/sched/cls_api.c has overlapping changes to a call to
nlmsg_parse(), one (from 'net') added rtm_tca_policy instead of NULL
to the 5th argument, and another (from 'net-next') added cb->extack
instead of NULL to the 6th argument.
net/ipv4/ipmr_base.c is a case of a bug fix in 'net' being done to
code which moved (to mr_table_dump)) in 'net-next'. Thanks to David
Ahern for the heads up.
Signed-off-by: David S. Miller <davem@davemloft.net>
KVM/arm updates for 4.20
- Improved guest IPA space support (32 to 52 bits)
- RAS event delivery for 32bit
- PMU fixes
- Guest entry hardening
- Various cleanups
Kernel test robot reported [1] a 6% performance regression in a
concurrent unlink(2) workload on commit 60f7ed8c7c ("fsnotify: send
path type events to group with super block marks").
The performance test was run with no fsnotify marks at all on the
data set, so the only extra instructions added by the offending
commit are tests of the super_block fields s_fsnotify_{marks,mask}
and these tests happen on almost every single inode access.
When adding those fields to the super_block struct, we did not give much
thought of placing them on a hot cache lines (we just placed them at the
end of the struct).
Re-organize struct super_block to try and keep some frequently accessed
fields on the same cache line.
Move the frequently accessed fields s_fsnotify_{marks,mask} near the
frequently accessed fields s_fs_info,s_time_gran, while filling a 64bit
alignment hole after s_time_gran.
Move the seldom accessed fields s_id,s_uuid,s_max_links,s_mode near the
seldom accessed fields s_vfs_rename_mutex,s_subtype.
Rong Chen confirmed that this patch solved the reported problem.
[1] https://lkml.org/lkml/2018/9/30/206
Reported-by: kernel test robot <rong.a.chen@intel.com>
Tested-by: kernel test robot <rong.a.chen@intel.com>
Fixes: 1e6cb72399 ("fsnotify: add super block object type")
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This reverts commit e9837e55b0.
When talking to Maze and Chenbo, we agreed to keep this back by now
due to problems in the ruleset listing path with 32-bit arches.
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
/include/net/netfilter/nfnetlink_log.h file is empty.
so that it can be removed.
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
The regmap API had a noinc_read function added for instances where devices
supported returning data from an internal FIFO in a single read.
This commit adds the noinc_write variant to allow writing to a non
incrementing register, this is used in devices such as the sx1301 for
loading firmware.
Signed-off-by: Ben Whitten <ben.whitten@lairdtech.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
parameter net of nf_flow_table_cleanup() is not used.
So that it can be removed.
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Unfortunately, it appears our fix in:
commit b5d29843d8 ("drm/atomic_helper: Allow DPMS On<->Off changes
for unregistered connectors")
Which attempted to work around the problems introduced by:
commit 4d80273976 ("drm/atomic_helper: Disallow new modesets on
unregistered connectors")
Is still not the right solution, as modesets can still be triggered
outside of drm_atomic_set_crtc_for_connector().
So in order to fix this, while still being careful that we don't break
modesets that a driver may perform before being registered with
userspace, we replace connector->registered with a tristate member,
connector->registration_state. This allows us to keep track of whether
or not a connector is still initializing and hasn't been exposed to
userspace, is currently registered and exposed to userspace, or has been
legitimately removed from the system after having once been present.
Using this info, we can prevent userspace from performing new modesets
on unregistered connectors while still allowing the driver to perform
modesets on unregistered connectors before the driver has finished being
registered.
Changes since v1:
- Fix WARN_ON() in drm_connector_cleanup() that CI caught with this
patchset in igt@drv_module_reload@basic-reload-inject and
igt@drv_module_reload@basic-reload by checking if the connector is
registered instead of unregistered, as calling drm_connector_cleanup()
on a connector that hasn't been registered with userspace yet should
stay valid.
- Remove unregistered_connector_check(), and just go back to what we
were doing before in commit 4d80273976 ("drm/atomic_helper: Disallow
new modesets on unregistered connectors") except replacing
READ_ONCE(connector->registered) with drm_connector_is_unregistered().
This gets rid of the behavior of allowing DPMS On<->Off, but that should
be fine as it's more consistent with the UAPI we had before - danvet
- s/drm_connector_unregistered/drm_connector_is_unregistered/ - danvet
- Update documentation, fix some typos.
Fixes: b5d29843d8 ("drm/atomic_helper: Allow DPMS On<->Off changes for unregistered connectors")
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: stable@vger.kernel.org
Cc: David Airlie <airlied@linux.ie>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20181016203946.9601-1-lyude@redhat.com
(cherry picked from commit 39b50c6038)
Fixes: e96550956f ("drm/atomic_helper: Disallow new modesets on unregistered connectors")
Fixes: 34ca26a98a ("drm/atomic_helper: Allow DPMS On<->Off changes for unregistered connectors")
Cc: stable@vger.kernel.org
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
NAND core changes:
- Two batchs of cleanups of the NAND API, including:
* Deprecating a lot of interfaces (now replaced by ->exec_op()).
* Moving code in separate drivers (JEDEC, ONFI), in private files
(internals), in platform drivers, etc.
* Functions/structures reordering.
* Exclusive use of the nand_chip structure instead of the MTD one
all across the subsystem.
- Addition of the nand_wait_readrdy/rdy_op() helpers.
Raw NAND controllers drivers changes:
- Various coccinelle patches.
- Marvell:
* Use regmap_update_bits() for syscon access.
* More documentation.
* BCH failure path rework.
* More layouts to be supported.
* IRQ handler complete() condition fixed.
- Fsl_ifc:
* SRAM initialization fixed for newer controller versions.
- Denali:
* Fix licenses mismatch and use a SPDX tag.
* Set SPARE_AREA_SKIP_BYTES register to 8 if unset.
- Qualcomm:
* Do not include dma-direct.h.
- Docg4:
* Removed.
- Ams-delta:
* Use of a GPIO lookup table
* Internal machinery changes.
Raw NAND chip drivers changes:
- Toshiba:
* Add support for Toshiba memory BENAND
* Pass a single nand_chip object to the status helper.
- ESMT:
* New driver to retrieve the ECC requirements from the 5th ID byte.
David writes:
"Networking
1) Fix gro_cells leak in xfrm layer, from Li RongQing.
2) BPF selftests change RLIMIT_MEMLOCK blindly, don't do that. From
Eric Dumazet.
3) AF_XDP calls synchronize_net() under RCU lock, fix from Björn
Töpel.
4) Out of bounds packet access in _decode_session6(), from Alexei
Starovoitov.
5) Several ethtool bugs, where we copy a struct into the kernel twice
and our validations of the values in the first copy can be
invalidated by the second copy due to asynchronous updates to the
memory by the user. From Wenwen Wang.
6) Missing netlink attribute validation in cls_api, from Davide
Caratti.
7) LLC SAP sockets neet to be SOCK_RCU FREE, from Cong Wang.
8) rxrpc operates on wrong kvec, from Yue Haibing.
9) A regression was introduced by the disassosciation of route
neighbour references in rt6_probe(), causing probe for
neighbourless routes to not be properly rate limited. Fix from
Sabrina Dubroca.
10) Unsafe RCU locking in tipc, from Tung Nguyen.
11) Use after free in inet6_mc_check(), from Eric Dumazet.
12) PMTU from icmp packets should update the SCTP transport pathmtu,
from Xin Long.
13) Missing peer put on error in rxrpc, from David Howells.
14) Fix pedit in nfp driver, from Pieter Jansen van Vuuren.
15) Fix overflowing shift statement in qla3xxx driver, from Nathan
Chancellor.
16) Fix Spectre v1 in ptp code, from Gustavo A. R. Silva.
17) udp6_unicast_rcv_skb() interprets udpv6_queue_rcv_skb() return
value in an inverted manner, fix from Paolo Abeni.
18) Fix missed unresolved entries in ipmr dumps, from Nikolay
Aleksandrov.
19) Fix NAPI handling under high load, we can completely miss events
when NAPI has to loop more than one time in a cycle. From Heiner
Kallweit."
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (49 commits)
ip6_tunnel: Fix encapsulation layout
tipc: fix info leak from kernel tipc_event
net: socket: fix a missing-check bug
net: sched: Fix for duplicate class dump
r8169: fix NAPI handling under high load
net: ipmr: fix unresolved entry dumps
net: mscc: ocelot: Fix comment in ocelot_vlant_wait_for_completion()
sctp: fix the data size calculation in sctp_data_size
virtio_net: avoid using netif_tx_disable() for serializing tx routine
udp6: fix encap return code for resubmitting
mlxsw: core: Fix use-after-free when flashing firmware during init
sctp: not free the new asoc when sctp_wait_for_connect returns err
sctp: fix race on sctp_id2asoc
r8169: re-enable MSI-X on RTL8168g
net: bpfilter: use get_pid_task instead of pid_task
ptp: fix Spectre v1 vulnerability
net: qla3xxx: Remove overflowing shift statement
geneve, vxlan: Don't set exceptions if skb->len < mtu
geneve, vxlan: Don't check skb_dst() twice
sctp: get pr_assoc and pr_stream all status with SCTP_PR_SCTP_ALL instead
...
All architectures that support swiotlb also have a zone that backs up
these less than full addressing allocations (usually ZONE_DMA32).
Because of that it is rather pointless to fall back to the global swiotlb
buffer if the normal dma direct allocation failed - the only thing this
will do is to eat up bounce buffers that would be more useful to serve
streaming mappings.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Remove the comment about being unable to detect __builtin_unreachable.
__builtin_unreachable was implemented in the GCC 4.5 timeframe. The
kernel's minimum supported version of GCC is 4.6 since commit
cafa0010cd ("Raise the minimum required gcc version to 4.6"). Commit
cb984d101b ("compiler-gcc: integrate the various compiler-gcc[345].h
files") shows that unreachable() had different guards based on GCC
version.
Suggested-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Like all other dma mapping drivers just return an error code instead
of an actual memory buffer. The reason for the overflow buffer was
that at the time swiotlb was invented there was no way to check for
dma mapping errors, but this has long been fixed.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Dave writes:
"drm fixes for 4.19 final
Just a last set of misc core fixes for final.
4 fixes, one use after free, one fb integration fix, one EDID fix,
and one laptop panel quirk,"
* tag 'drm-fixes-2018-10-19' of git://anongit.freedesktop.org/drm/drm:
drm/edid: VSDB yCBCr420 Deep Color mode bit definitions
drm: fix use of freed memory in drm_mode_setcrtc
drm: fb-helper: Reject all pixel format changing requests
drm/edid: Add 6 bpc quirk for BOE panel in HP Pavilion 15-n233sl
- Nvidia Tegra clk driver MBIST workaround fix
- clk_bulk_get_all() API and friends to get all the clks for a device
* clk-tegra:
clk: tegra210: Include size.h for compilation ease
clk: tegra: Fixes for MBIST work around
clk: tegra: probe deferral error reporting
* clk-bulk-get-all:
clk: add managed version of clk_bulk_get_all
clk: add new APIs to operate on all available clocks
clk: bulk: add of_clk_bulk_get()
- Hisilicon 3670 SoC support
* clk-samsung:
dt-bindings: clock: samsung: Add SPDX license identifiers
clk: samsung: Use clk_hw API for calling clk framework from clk notifiers
clk: samsung: exynos5420: Enable PERIS clocks for suspend
clk: samsung: exynos5420: Define CLK_SECKEY gate clock only or Exynos5420
clk: samsung: exynos5433: Keep sclk_uart clocks enabled in suspend
clk: samsung: Remove obsolete code for Exynos4412 ISP clocks
clk: samsung: exynos5433: Add suspend state for TOP, CPIF & PERIC CMUs
clk: samsung: Use NOIRQ stage for Exynos5433 clocks suspend/resume
clk: samsung: exynos5420: Use generic helper for handling suspend/resume
clk: samsung: exynos4: Use generic helper for handling suspend/resume
clk: samsung: Add support for setting registers state before suspend
clk: samsung: exynos5250: Use generic helper for handling suspend/resume
clk: samsung: s5pv210: Use generic helper for handling suspend/resume
clk: samsung: s3c64xx: Use generic helper for handling suspend/resume
clk: samsung: s3c2443: Use generic helper for handling suspend/resume
clk: samsung: s3c2412: Use generic helper for handling suspend/resume
clk: samsung: s3c2410: Use generic helper for handling suspend/resume
clk: samsung: Remove excessive include
* clk-hisi3670:
clk: hisilicon: Add clock driver for Hi3670 SoC
dt-bindings: clk: hisilicon: Add bindings for Hi3670 clk
* clk-at91-div-0:
clk: at91: Fix division by zero in PLL recalc_rate()
* clk-ti:
clk: ti: Prepare for remove of OF node name
clk: Clean up suspend/resume coding style
clk: ti: Add functions to save/restore clk context
clk: clk: Add clk_gate_restore_context function
clk: Add functions to save/restore clock context en-masse
clk: ti: dra7: add new clkctrl data
clk: ti: dra7xx: rename existing clkctrl data as compat data
clk: ti: am43xx: add new clkctrl data for am43xx
clk: ti: am43xx: rename existing clkctrl data as compat data
clk: ti: am33xx: add new clkctrl data for am33xx
clk: ti: am33xx: rename existing clkctrl data as compat data
clk: ti: clkctrl: replace dashes from clkdm name with underscore
clk: ti: clkctrl: support multiple clkctrl nodes under a cm node
dt-bindings: clock: dra7xx: add clkctrl indices for new data layout
dt-bindings: clock: am43xx: add clkctrl indices for new data layout
dt-bindings: clock: am33xx: add clkctrl indices for new data layout
- S2RAM support for Marvell mvebu periph clks
* clk-mvebu-periph-pm:
clk: mvebu: armada-37xx-periph: add suspend/resume support
clk: mvebu: armada-37xx-periph: save the IP base address in the driver data
* clk-meson:
clk: meson: meson8b: use the regmap in the internal reset controller
clk: meson: meson8b: register the clock controller early
clk: meson-axg: pcie: drop the mpll3 clock parent
clk: meson: axg: round audio system master clocks down
clk: meson: clk-pll: drop hard-coded rates from pll tables
clk: meson: clk-pll: remove od parameters
clk: meson: clk-pll: drop CLK_GET_RATE_NOCACHE where unnecessary
clk: meson: clk-pll: add enable bit
* clk-allwinner:
dt-bindings: clock: sun50i-a64-ccu: Add PLL_VIDEO0 macro
clk: sunxi-ng: a64: Add max. rate constraint to video PLLs
clk: sunxi-ng: a64: Add minimal rate for video PLLs
clk: sunxi-ng: sun50i: h6: Add 2x fixed post-divider to MMC module clocks
clk: sunxi-ng: a83t: Add max. rate constraint to video PLLs
clk: sunxi-ng: nkmp: Add constraint for maximum rate
clk: sunxi-ng: r40: Add max. rate constraint to video PLLs
clk: sunxi-ng: h3/h5: Add max. rate constraint to pll-video
clk: sunxi-ng: Add maximum rate constraint to NM PLLs
clk: sunxi-ng: h6: fix PWM gate/reset offset
clk: sunxi-ng: h6: fix bus clocks' divider position
* clk-mvebu-dup:
clk: mvebu: ap806: Remove superfluous of_clk_add_provider
* clk-davinci:
clk: davinci: kill davinci_clk_reset_assert/deassert()
- Tag various drivers with SPDX license tags
- Support dynamic frequency switching (DFS) on qcom SDM845 GCC
- Only use s2mps11 dt-binding defines instead of redefining them in the driver
- Add some more missing clks to qcom MSM8996 GCC
- Quad SPI clks on qcom SDM845
* clk-spdx:
clk: mvebu: use SPDX-License-Identifier
clk: renesas: Convert to SPDX identifiers
clk: renesas: use SPDX identifier for Renesas drivers
clk: s2mps11,s3c64xx: Add SPDX license identifiers
clk: max77686: Add SPDX license identifiers
* clk-qcom-dfs:
clk: qcom: Allocate space for NULL terimation in DFS table
clk: qcom: gcc: Register QUPv3 RCGs for DFS on SDM845
clk: qcom: Add support for RCG to register for DFS
* clk-smp2s11-include:
clk: s2mps11: Use existing defines from bindings for clock IDs
* clk-qcom-8996-missing:
clk: qcom: Add some missing gcc clks for msm8996
* clk-qcom-qspi:
clk: qcom: Add qspi (Quad SPI) clocks for sdm845
clk: qcom: Add qspi (Quad SPI) clock defines for sdm845 to header
NFS RDMA client updates for Linux 4.20
Stable bugfixes:
- Reset credit grant properly after a disconnect
Other bugfixes and cleanups:
- xprt_release_rqst_cong is called outside of transport_lock
- Create more MRs at a time and toss out old ones during recovery
- Various improvements to the RDMA connection and disconnection code:
- Improve naming of trace events, functions, and variables
- Add documenting comments
- Fix metrics and stats reporting
- Fix a tracepoint sparse warning
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Added "Per lane raw errors" capability bit in
Ports Capabilities Mask (PCAM) enhanced features
layout.
This bit determines if the fields "phy_raw_errors_laneX"
in "Physical Layer statistical" counters group are supported.
Signed-off-by: Shay Agroskin <shayag@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Added FEC related fields to PPLM layout.
These fields are needed to set and query FEC policy
for different link speeds.
Signed-off-by: Shay Agroskin <shayag@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Take struct mlx5_frag_buf out of mlx5_frag_buf_ctrl, as it is not
needed to manage and control the datapath of the fragmented buffers API.
struct mlx5_frag_buf contains control info to manage the allocation
and de-allocation of the fragmented buffer.
Its fields are not relevant for datapath, so here I take them out of the
struct mlx5_frag_buf_ctrl, except for the fragments array itself.
In addition, modified mlx5_fill_fbc to initialise the frags pointers
as well. This implies that the buffer must be allocated before the
function is called.
A set of type-specific *_get_byte_size() functions are replaced by
a generic one.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Now it's confusing that asoc sndbuf_used is doing memory accounting with
SCTP_DATA_SNDSIZE(chunk) + sizeof(sk_buff) + sizeof(sctp_chunk) while sk
sk_wmem_alloc is doing that with skb->truesize + sizeof(sctp_chunk).
It also causes sctp_prsctp_prune to count with a wrong freed memory when
sndbuf_policy is not set.
To make this right and also keep consistent between asoc sndbuf_used, sk
sk_wmem_alloc and sk_wmem_queued, use skb->truesize + sizeof(sctp_chunk)
for them.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This fixes a general protection fault, caused by accessing the contents
of a flip_done completion object that has already been freed. It occurs
due to the preemption of a non-blocking commit worker thread W by
another commit thread X. X continues to clear its atomic state at the
end, destroying the CRTC commit object that W still needs. Switching
back to W and accessing the commit objects then leads to bad results.
Worker W becomes preemptable when waiting for flip_done to complete. At
this point, a frequently occurring commit thread X can take over. Here's
an example where W is a worker thread that flips on both CRTCs, and X
does a legacy cursor update on both CRTCs:
...
1. W does flip work
2. W runs commit_hw_done()
3. W waits for flip_done on CRTC 1
4. > flip_done for CRTC 1 completes
5. W finishes waiting for CRTC 1
6. W waits for flip_done on CRTC 2
7. > Preempted by X
8. > flip_done for CRTC 2 completes
9. X atomic_check: hw_done and flip_done are complete on all CRTCs
10. X updates cursor on both CRTCs
11. X destroys atomic state
12. X done
13. > Switch back to W
14. W waits for flip_done on CRTC 2
15. W raises general protection fault
The error looks like so:
general protection fault: 0000 [#1] PREEMPT SMP PTI
**snip**
Call Trace:
lock_acquire+0xa2/0x1b0
_raw_spin_lock_irq+0x39/0x70
wait_for_completion_timeout+0x31/0x130
drm_atomic_helper_wait_for_flip_done+0x64/0x90 [drm_kms_helper]
amdgpu_dm_atomic_commit_tail+0xcae/0xdd0 [amdgpu]
commit_tail+0x3d/0x70 [drm_kms_helper]
process_one_work+0x212/0x650
worker_thread+0x49/0x420
kthread+0xfb/0x130
ret_from_fork+0x3a/0x50
Modules linked in: x86_pkg_temp_thermal amdgpu(O) chash(O)
gpu_sched(O) drm_kms_helper(O) syscopyarea sysfillrect sysimgblt
fb_sys_fops ttm(O) drm(O)
Note that i915 has this issue masked, since hw_done is signaled after
waiting for flip_done. Doing so will block the cursor update from
happening until hw_done is signaled, preventing the cursor commit from
destroying the state.
v2: The reference on the commit object needs to be obtained before
hw_done() is signaled, since that's the point where another commit
is allowed to modify the state. Assuming that the
new_crtc_state->commit object still exists within flip_done() is
incorrect.
Fix by getting a reference in setup_commit(), and releasing it
during default_clear().
Signed-off-by: Leo Li <sunpeng.li@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1539611200-6184-1-git-send-email-sunpeng.li@amd.com
mlx5-updates-2018-10-17
========================================================================
From Or Gerlitz <ogerlitz@mellanox.com>:
This series from Paul adds support to mlx5 e-switch tc offloading of multiple priorities and chains.
This is made of four building blocks (along with few minor driver refactors):
[1] Split FDB fast path prio to multiple namespaces
Currently the FDB name-space contains two priorities, fast path (p0) and slow path (p1).
The slow path contains the per representor SQ send-to-vport TX rule and the match-all
RX miss rule. As a pre-step to support multi-chains and priorities, we split the FDB fast path
to multiple namespaces (sub namespaces), each with multiple priorities.
[2] E-Switch chains and priorities
A chain is a group of priorities. We use the fdb parallel sub-namespaces to implement chains,
and a flow table for each priority in them.
Because these namespaces are parallel and in series to the slow path
fdb, the chains aren't connected to each other (but to the slow path),
and one must use a explicit goto action to reach a different chain.
Flow tables for the priorities are created on demand and destroyed
once not used.
[3] Add a no-append flow insertion mode, use it for TC offloads
Enhance the driver fs core, such that if a no-append flag is set by the caller,
we add a new FTE, instead of appending the actions of the inserted rule when
the same match already exists.
For encap rules, we defer the HW offloading till we have a valid neighbor. This can
result in the packet hitting a lower priority rule in the HW DP. Use the no-append API
to push these packets to the slow path FDB table, so they go to the TC kernel DP as done
before priorities where supported.
[4] Offloading tc priorities and chains for eswitch flows
Using [1], [2] and [3] above we add the support for offloading both chains
and priorities. To get to a new chain, use the tc goto action. We support
a fixed prio range 1-16, and chains 0-3.
=============================================================================
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch is for VK_KHR_timeline_semaphore extension, semaphore is called syncobj in kernel side:
This extension introduces a new type of syncobj that has an integer payload
identifying a point in a timeline. Such timeline syncobjs support the
following operations:
* CPU query - A host operation that allows querying the payload of the
timeline syncobj.
* CPU wait - A host operation that allows a blocking wait for a
timeline syncobj to reach a specified value.
* Device wait - A device operation that allows waiting for a
timeline syncobj to reach a specified value.
* Device signal - A device operation that allows advancing the
timeline syncobj to a specified value.
v1:
Since it's a timeline, that means the front time point(PT) always is signaled before the late PT.
a. signal PT design:
Signal PT fence N depends on PT[N-1] fence and signal opertion fence, when PT[N] fence is signaled,
the timeline will increase to value of PT[N].
b. wait PT design:
Wait PT fence is signaled by reaching timeline point value, when timeline is increasing, will compare
wait PTs value with new timeline value, if PT value is lower than timeline value, then wait PT will be
signaled, otherwise keep in list. syncobj wait operation can wait on any point of timeline,
so need a RB tree to order them. And wait PT could ahead of signal PT, we need a sumission fence to
perform that.
v2:
1. remove unused DRM_SYNCOBJ_CREATE_TYPE_NORMAL. (Christian)
2. move unexposed denitions to .c file. (Daniel Vetter)
3. split up the change to drm_syncobj_find_fence() in a separate patch. (Christian)
4. split up the change to drm_syncobj_replace_fence() in a separate patch.
5. drop the submission_fence implementation and instead use wait_event() for that. (Christian)
6. WARN_ON(point != 0) for NORMAL type syncobj case. (Daniel Vetter)
v3:
1. replace normal syncobj with timeline implemenation. (Vetter and Christian)
a. normal syncobj signal op will create a signal PT to tail of signal pt list.
b. normal syncobj wait op will create a wait pt with last signal point, and this wait PT is only signaled by related signal point PT.
2. many bug fix and clean up
3. stub fence moving is moved to other patch.
v4：
1. fix RB tree loop with while(node=rb_first(...)). (Christian)
2. fix syncobj lifecycle. (Christian)
3. only enable_signaling when there is wait_pt. (Christian)
4. fix timeline path issues.
5. write a timeline test in libdrm
v5: (Christian)
1. semaphore is called syncobj in kernel side.
2. don't need 'timeline' characters in some function name.
3. keep syncobj cb.
v6: (Christian)
1. merge syncobj_timeline to syncobj structure.
2. simplify some check sentences.
3. some misc change.
4. fix CTS failed issue.
v7: (Christian)
1. error handling when creating signal pt.
2. remove timeline naming in func.
3. export flags in find_fence.
4. allow reset timeline.
v8:
1. use wait_event_interruptible without timeout
2. rename _TYPE_INDIVIDUAL to _TYPE_BINARY
v9:
1. rename signal_pt->base to signal_pt->fence_array to avoid misleading
2. improve kerneldoc
individual syncobj is tested by ./deqp-vk -n dEQP-VK*semaphore*
timeline syncobj is tested by ./amdgpu_test -s 9
Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Cc: Christian Konig <christian.koenig@amd.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Daniel Rakos <Daniel.Rakos@amd.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Cc: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Christian König <christian.koenig@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/257258/
* acpi-init:
ACPI: probe ECDT before loading AML tables regardless of module-level code flag
* acpi-osl:
ACPI / OSL: Use 'jiffies' as the time bassis for acpi_os_get_timer()
* acpi-bus:
ACPI / glue: Split dev_is_platform() out of module for wide use
* acpi-tables:
ACPI/PPTT: Handle architecturally unknown cache types
drivers: base: cacheinfo: Do not populate sysfs for unknown cache types
* acpi-misc:
ACPI: remove redundant 'default n' from Kconfig
ACPI: custom_method: remove meaningless null check before debugfs_remove()
* pm-devfreq:
PM / devfreq: remove redundant null pointer check before kfree
PM / devfreq: stopping the governor before device_unregister()
PM / devfreq: Convert to using %pOFn instead of device_node.name
PM / devfreq: Make update_devfreq() public
PM / devfreq: Don't adjust to user limits in governors
PM / devfreq: Fix handling of min/max_freq == 0
PM / devfreq: Drop custom MIN/MAX macros
PM / devfreq: Fix devfreq_add_device() when drivers are built as modules.
* pm-tools:
PM / tools: sleepgraph and bootgraph: upgrade to v5.2
PM / tools: sleepgraph: first batch of v5.2 changes
cpupower: Fix coredump on VMWare
cpupower: Fix AMD Family 0x17 msr_pstate size
cpupower: remove stringop-truncation waring
* pm-opp:
PM / OPP: _of_add_opp_table_v2(): increment count only if OPP is added
cpufreq: dt: Try freeing static OPPs only if we have added them
OPP: Return error on error from dev_pm_opp_get_opp_count()
OPP: Improve error handling in dev_pm_opp_of_cpumask_add_table()
OPP: Pass OPP table to _of_add_opp_table_v{1|2}()
OPP: Prevent creating multiple OPP tables for devices sharing OPP nodes
OPP: Use a single mechanism to free the OPP table
OPP: Don't remove dynamic OPPs from _dev_pm_opp_remove_table()
cpufreq: mvebu: Remove OPPs using dev_pm_opp_remove()
OPP: Create separate kref for static OPPs list
OPP: Don't take OPP table's kref for static OPPs
OPP: Parse OPP table's DT properties from _of_init_opp_table()
OPP: Pass index to _of_init_opp_table()
OPP: Protect dev_list with opp_table lock
OPP: Don't try to remove all OPP tables on failure
OPP: Free OPP table properly on performance state irregularities
* powercap:
powercap: RAPL: Get rid of custom RAPL_CPU() macro
* pm-cpufreq:
cpufreq: tegra186: don't pass GFP_DMA32 to dma_alloc_coherent()
cpufreq: conservative: Take limits changes into account properly
Documentation: intel_pstate: Add base_frequency information
cpufreq: intel_pstate: Add base_frequency attribute
ACPI / CPPC: Add support for guaranteed performance
cpufreq: imx6q: read OCOTP through nvmem for imx6ul/imx6ull
cpufreq: dt-platdev: allow RK3399 to have separate tunables per cluster
cpufreq / CPPC: Mark acpi_ids as used
cpufreq: dt: Add support for r8a7744
cpufreq: Convert to using %pOFn instead of device_node.name
cpufreq: remove unnecessary unlikely()
* pm-cpuidle:
cpuidle: menu: Avoid computations when result will be discarded
cpuidle: menu: Drop redundant comparison
cpuidle: menu: Simplify checks related to the polling state
cpuidle: poll_state: Revise loop termination condition
cpuidle: menu: Move the latency_req == 0 special case check
cpuidle: menu: Avoid computations for very close timers
cpuidle: menu: Do not update last_state_idx in menu_select()
cpuidle: menu: Get rid of first_idx from menu_select()
cpuidle: menu: Compute first_idx when latency_req is known
cpuidle: menu: Fix wakeup statistics updates for polling state
cpuidle: menu: Replace data->predicted_us with local variable
cpuidle: enter_state: Don't needlessly calculate diff time
cpuidle: Remove unnecessary wrapper cpuidle_get_last_residency()
intel_idle: Get rid of custom ICPU() macro
The current documented description of the GENPD_FLAG_* flags, are too
simplified, so let's extend them.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
