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Add a struct to access logic efuse map, and fill data according to the map.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220307060457.56789-14-pkshih@realtek.com
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Read phycap data programmed in efuse, and store them into array.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220307060457.56789-13-pkshih@realtek.com
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DAV is an another efuse region that new chip, like 8852C, has this region.
Extend the code to read it, and convert the physical map to logical map
followed by original logical map.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220307060457.56789-12-pkshih@realtek.com
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These tables are used to configure hardware buffer size according to
operating mode.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220307060457.56789-11-pkshih@realtek.com
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These registers are used to configure and access page size of HCI.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220307060457.56789-10-pkshih@realtek.com
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This is a register-based H2C/C2H interface to exchange data with firmware.
Since the register addresses of 8852A and 8852C are different, add fields
to chip_info to support this.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220307060457.56789-9-pkshih@realtek.com
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The HCI_FUNC_EN address of 8852C is different from existing chipset, so
add a chip_info::hci_func_en_addr to fill the address individually.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220307060457.56789-8-pkshih@realtek.com
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New chipset uses individual power_{on/off} functions to replace old power
sequences, because it is hard to represent new complicated flow in a
sequence table.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220307060457.56789-7-pkshih@realtek.com
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Only 8852A may get wrong chip version if power isn't on, so it needs
additional actions to correct the version. Later chips don't need those.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220307060457.56789-6-pkshih@realtek.com
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We have had a struct rtw89_pci_ch_dma_addr to describe register address,
so use it as regular. Since the addresses should be changed dynamically
according to operating mode, I don't change it to be constant.
These changes don't affect the logic, so I put them in this separated
patch.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220307060457.56789-5-pkshih@realtek.com
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8852CE use V1 address, and flow is totally shared with 8852AE.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220307060457.56789-4-pkshih@realtek.com
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Use this struct to implement chip::ops related to PCI interface.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220307060457.56789-3-pkshih@realtek.com
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Add these files, and then I can add specific chip::ops or chip::info along
with the existing chip.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220307060457.56789-2-pkshih@realtek.com
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One of the key architectual tenets is to keep the parameters for
io-uring stable. After the call has been submitted, its value can
be changed. Unfortunaltely this is not the case for the current statx
implementation.
IO-Uring change:
This changes replaces the const char * filename pointer in the io_statx
structure with a struct filename *. In addition it also creates the
filename object during the prepare phase.
With this change, the opcode also needs to invoke cleanup, so the
filename object gets freed after processing the request.
fs change:
This replaces the const char* __user filename parameter in the two
functions do_statx and vfs_statx with a struct filename *. In addition
to be able to correctly construct a filename object a new helper
function getname_statx_lookup_flags is introduced. The function makes
sure that do_statx and vfs_statx is invoked with the correct lookup flags.
Signed-off-by: Stefan Roesch <shr@fb.com>
Link: https://lore.kernel.org/r/20220225185326.1373304-2-shr@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Specify devicetree bindings entry for mt76 driver.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/8cbfeceef642ede408b4922c363953cb243cd87f.1646766851.git.lorenzo@kernel.org
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Don't populate the read-only array pktflags on the stack but
instead make it static const. Also makes the object code a little
smaller.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220307223227.165963-1-colin.i.king@gmail.com
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The sqpoll thread can be used for performing the napi busy poll in a
similar way that it does io polling for file systems supporting direct
access bypassing the page cache.
The other way that io_uring can be used for napi busy poll is by
calling io_uring_enter() to get events.
If the user specify a timeout value, it is distributed between polling
and sleeping by using the systemwide setting
/proc/sys/net/core/busy_poll.
The changes have been tested with this program:
https://github.com/lano1106/io_uring_udp_ping
and the result is:
Without sqpoll:
NAPI busy loop disabled:
rtt min/avg/max/mdev = 40.631/42.050/58.667/1.547 us
NAPI busy loop enabled:
rtt min/avg/max/mdev = 30.619/31.753/61.433/1.456 us
With sqpoll:
NAPI busy loop disabled:
rtt min/avg/max/mdev = 42.087/44.438/59.508/1.533 us
NAPI busy loop enabled:
rtt min/avg/max/mdev = 35.779/37.347/52.201/0.924 us
Co-developed-by: Hao Xu <haoxu@linux.alibaba.com>
Signed-off-by: Hao Xu <haoxu@linux.alibaba.com>
Signed-off-by: Olivier Langlois <olivier@trillion01.com>
Link: https://lore.kernel.org/r/810bd9408ffc510ff08269e78dca9df4af0b9e4e.1646777484.git.olivier@trillion01.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Move up the block manipulating the sig variable to execute code
that may encounter an error and exit first before continuing
executing the rest of the function and avoid useless computations
Signed-off-by: Olivier Langlois <olivier@trillion01.com>
Link: https://lore.kernel.org/r/84513f7cc1b1fb31d8f4cb910aee033391d036b4.1646777484.git.olivier@trillion01.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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This function exists in phy_common.c as '_rtl92c_phy_set_rf_sleep'.
Switch to the one in common file.
Signed-off-by: Lu Jicong <jiconglu58@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220306090846.28523-1-jiconglu58@gmail.com
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There are two identical assignments of chip->owner to the same value,
the second assignment is redundant and can be removed.
Cleans up cppcheck warning:
drivers/bcma/driver_gpio.c:184:15: style: Variable 'chip->owner' is
reassigned a value before the old one has been used. [redundantAssignment]
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220303085841.1124766-1-colin.i.king@gmail.com
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Use the helper function time_is_{before,after}_jiffies() to improve
code readability.
Signed-off-by: Wang Qing <wangqing@vivo.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/1646018060-61275-1-git-send-email-wangqing@vivo.com
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This adds support for IORING_OP_MSG_RING, which allows an SQE to signal
another ring. That allows either waking up someone waiting on the ring,
or even passing a 64-bit value via the user_data field in the CQE.
sqe->fd must contain the fd of a ring that should receive the CQE.
sqe->off will be propagated to the cqe->user_data on the target ring,
and sqe->len will be propagated to cqe->res. The results CQE will have
IORING_CQE_F_MSG set in its flags, to indicate that this CQE was generated
from a messaging request rather than a SQE issued locally on that ring.
This effectively allows passing a 64-bit and a 32-bit quantify between
the two rings.
This request type has the following request specific error cases:
- -EBADFD. Set if the sqe->fd doesn't point to a file descriptor that is
of the io_uring type.
- -EOVERFLOW. Set if we were not able to deliver a request to the target
ring.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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These email addresses no longer work, so remove them from MAINTAINERS.
Signed-off-by: Double Lo <Double.Lo@infineon.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220222015947.169224-1-double.lo@infineon.com
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There has been repeated discussion on removing a.out support, the most
recent was[1]. Having read through a bunch of the discussion it looks
like no one has see any reason why we need to keep a.out support.
The m68k maintainer has even come out in favor of removing a.out
support[2].
At a practical level with only two rarely used architectures building
a.out support, it gets increasingly hard to test and to care about.
Which means the code will almost certainly bit-rot.
Let's see if anyone cares about a.out support on the last two
architectures that build it, by disabling the build of the support in
Kconfig. If anyone cares, this can be easily reverted, and we can then
have a discussion about what it is going to take to support a.out
binaries in the long term.
[1] https://lkml.kernel.org/r/20220113160115.5375-1-bp@alien8.de
[2] https://lkml.kernel.org/r/CAMuHMdUbTNNr16YY1TFe=-uRLjg6yGzgw_RqtAFpyhnOMM5Pvw@mail.gmail.com
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: linux-alpha@vger.kernel.org
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux-m68k@lists.linux-m68k.org
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/87ilsmdhb5.fsf_-_@email.froward.int.ebiederm.org
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/lkml/CAMuHMdVLyu6LNONJa1QcMGv__bWSCRvVq9haD7=fOm1k5O3Pnw@mail.gmail.com
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driver keeps the same survey_info struct for its lifetime around.
This is used because while firmware does help by providing accounting
information of the current channel, it doesn't keep track on the
remaining channels.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/9b9a059b384f49587f4384ba47f01d3fb2115b22.1646250537.git.chunkeey@gmail.com
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the mem_bitmap is kept around for the lifetime of the
driver device. This is a perfect candidate for devm.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/0a79221aa5477501c3def032e95ef8018973a514.1646250537.git.chunkeey@gmail.com
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devres will take care of freeing the input_device once
it is no longer needed.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/f81a6ff3b02116c6a448c42eecb546ea5d46c108.1646250537.git.chunkeey@gmail.com
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devres will take care of freeing the hwrng once it is no longer needed.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/d1c16490462a9371ab3cc16a018ef5e08382a35e.1646250537.git.chunkeey@gmail.com
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Running yamllint is effectively required for binding schemas, so print a
warning if not found rather than silently skipping running it.
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20220303221417.2486268-1-robh@kernel.org
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Since ~2010, the driver is allowed to sleep in the ampdu_action
callback thanks to:
commit 85ad181ea788 ("mac80211: allow drivers to sleep in ampdu_action")
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/0036538d0933626a1a5eb2c2c3935cf173028926.1646250537.git.chunkeey@gmail.com
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The device_node pointer is returned by of_parse_phandle() with refcount
incremented. We should use of_node_put() on it when done.
This function only calls of_node_put() in the regular path.
And it will cause refcount leak in error path.
Fixes: 727fec790ead ("ath10k: Setup the msa resources before qmi init")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220308070238.19295-1-linmq006@gmail.com
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All work currently pending will be done first by calling destroy_workqueue,
so there is no need to flush it explicitly.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Lv Ruyi (CGEL ZTE) <lv.ruyi@zte.com.cn>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220301013246.2052570-1-lv.ruyi@zte.com.cn
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This device with a male Mini-B USB connector is part of Panasonic TVs.
Signed-off-by: André Apitzsch <git@apitzsch.eu>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220302211436.8746-1-git@apitzsch.eu
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The calls to devm_gpiod_get_optional() have the -gpios at the end of the
name but the GPIO core code is already adding the suffix during the lookup.
This means the PCIe driver is not finding the necessary reset or power
lines to allow initialisation of the PCIe.
Drop the redundant '-gpios' when we look up GPIOs from the DT.
This bug has not been noticed because if U-Boot has setup the GPIO lines
for the hardware when it does the PCIe initialisation (either by booting
from PCIe or user command to access PCIe) then the PCIe will work in Linux.
The U-Boot as supplied by SiFive does not by default initialise any PCIe
component.
Link: https://lore.kernel.org/r/20220221210347.1335004-1-ben.dooks@codethink.co.uk
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Use helper macro __ATTR_RW to define HYPERVISOR_ATTR_RW to make code more clear.
Minor readability improvement.
Remove extra whitespace [boris: added this comment]
Signed-off-by: zhanglianjie <zhanglianjie@uniontech.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20220305133823.158961-1-zhanglianjie@uniontech.com
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
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Fix the following W=1 kernel warnings:
arch/x86/xen/setup.c:725: warning: expecting prototype for
machine_specific_memory_setup(). Prototype was for xen_memory_setup()
instead.
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20220307062554.8334-1-jiapeng.chong@linux.alibaba.com
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
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The sched_clock() can be used very early since commit 857baa87b642
("sched/clock: Enable sched clock early"). In addition, with commit
38669ba205d1 ("x86/xen/time: Output xen sched_clock time from 0"), kdump
kernel in Xen HVM guest may panic at very early stage when accessing
&__this_cpu_read(xen_vcpu)->time as in below:
setup_arch()
-> init_hypervisor_platform()
-> x86_init.hyper.init_platform = xen_hvm_guest_init()
-> xen_hvm_init_time_ops()
-> xen_clocksource_read()
-> src = &__this_cpu_read(xen_vcpu)->time;
This is because Xen HVM supports at most MAX_VIRT_CPUS=32 'vcpu_info'
embedded inside 'shared_info' during early stage until xen_vcpu_setup() is
used to allocate/relocate 'vcpu_info' for boot cpu at arbitrary address.
However, when Xen HVM guest panic on vcpu >= 32, since
xen_vcpu_info_reset(0) would set per_cpu(xen_vcpu, cpu) = NULL when
vcpu >= 32, xen_clocksource_read() on vcpu >= 32 would panic.
This patch calls xen_hvm_init_time_ops() again later in
xen_hvm_smp_prepare_boot_cpu() after the 'vcpu_info' for boot vcpu is
registered when the boot vcpu is >= 32.
This issue can be reproduced on purpose via below command at the guest
side when kdump/kexec is enabled:
"taskset -c 33 echo c > /proc/sysrq-trigger"
The bugfix for PVM is not implemented due to the lack of testing
environment.
[boris: xen_hvm_init_time_ops() returns on errors instead of jumping to end]
Cc: Joe Jin <joe.jin@oracle.com>
Signed-off-by: Dongli Zhang <dongli.zhang@oracle.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20220302164032.14569-3-dongli.zhang@oracle.com
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
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Use the helper function time_is_{before,after}_jiffies() to improve
code readability.
Signed-off-by: Wang Qing <wangqing@vivo.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/1646018104-61415-1-git-send-email-wangqing@vivo.com
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
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It is allocated with kvmalloc(), the corresponding release function
should not be kfree(), use kvfree() instead.
Generated by: scripts/coccinelle/api/kfree_mismatch.cocci
Fixes: b530e9e1063e ("bpf: Add "live packet" mode for XDP in BPF_PROG_RUN")
Signed-off-by: Yihao Han <hanyihao@vivo.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://lore.kernel.org/bpf/20220310092828.13405-1-hanyihao@vivo.com
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The kernel test robot pointed out that the newly added
bpf_test_run_xdp_live() runner doesn't set the retval in the caller (by
design), which means that the variable can be passed unitialised to
bpf_test_finish(). Fix this by initialising the variable properly.
Fixes: b530e9e1063e ("bpf: Add "live packet" mode for XDP in BPF_PROG_RUN")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20220310110228.161869-1-toke@redhat.com
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Commit 1a56c18e6c2e4e74 ("bpftool: Stop supporting BPF offload-enabled
feature probing") removed the support to probe for BPF offload features.
This is still something that is useful for NFP NIC that can support
offloading of BPF programs.
The reason for the dropped support was that libbpf starting with v1.0
would drop support for passing the ifindex to the BPF prog/map/helper
feature probing APIs. In order to keep this useful feature for NFP
restore the functionality by moving it directly into bpftool.
The code restored is a simplified version of the code that existed in
libbpf which supposed passing the ifindex. The simplification is that it
only targets the cases where ifindex is given and call into libbpf for
the cases where it's not.
Before restoring support for probing offload features:
# bpftool feature probe dev ens4np0
Scanning system call availability...
bpf() syscall is available
Scanning eBPF program types...
Scanning eBPF map types...
Scanning eBPF helper functions...
eBPF helpers supported for program type sched_cls:
eBPF helpers supported for program type xdp:
Scanning miscellaneous eBPF features...
Large program size limit is NOT available
Bounded loop support is NOT available
ISA extension v2 is NOT available
ISA extension v3 is NOT available
With support for probing offload features restored:
# bpftool feature probe dev ens4np0
Scanning system call availability...
bpf() syscall is available
Scanning eBPF program types...
eBPF program_type sched_cls is available
eBPF program_type xdp is available
Scanning eBPF map types...
eBPF map_type hash is available
eBPF map_type array is available
Scanning eBPF helper functions...
eBPF helpers supported for program type sched_cls:
- bpf_map_lookup_elem
- bpf_get_prandom_u32
- bpf_perf_event_output
eBPF helpers supported for program type xdp:
- bpf_map_lookup_elem
- bpf_get_prandom_u32
- bpf_perf_event_output
- bpf_xdp_adjust_head
- bpf_xdp_adjust_tail
Scanning miscellaneous eBPF features...
Large program size limit is NOT available
Bounded loop support is NOT available
ISA extension v2 is NOT available
ISA extension v3 is NOT available
Signed-off-by: Niklas Söderlund <niklas.soderlund@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Quentin Monnet <quentin@isovalent.com>
Link: https://lore.kernel.org/bpf/20220310121846.921256-1-niklas.soderlund@corigine.com
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Rename the PIPECONF refresh rate select bits to be
less cryptic. Also nothing eDP specific about these as they
also select between FP0 vs. FP1 for the DPLL and thus can be
used to change the refresh rate on other output types as well.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220310004802.16310-9-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
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Make the DRRS refresh rate enum less magical.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220310004802.16310-8-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
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Make the drrs type enum less convoluted.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220310004802.16310-7-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
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Grab the DRRS MSA timing delay value from the VBT
and program things accordingly. Only ilk/snb/ivb have
this so presumably on hsw+ we don't need it.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220310004802.16310-6-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
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VBT hsa a field for the MSA timing delay, which supposedly
should be used with DRRS. Extract the data from the VBT.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220310004802.16310-5-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
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Use the standard [CONNECTOR:%d:%s] format in the DRRS debugs.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220310004802.16310-4-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
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Pass the fixed_mode as const to intel_drrs_init() since it's
not supposed to mutate the mode.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220310004802.16310-3-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
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Only seamless DRRS needs the frontbuffer tracking, so check for that.
Also use != consistently instead of randomly picking < as the comparison
operator.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220310004802.16310-2-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
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Add tests to verify that s390 kretprobes maintain a correct stack
chain and ensure their proper function.
Reviewed-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Tobias Huschle <huschle@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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Ping-Ke Shih
Stefan Roesch
Lorenzo Bianconi
Colin Ian King
Olivier Langlois
Lu Jicong
Wang Qing
Jens Axboe
Double Lo
Eric W. Biederman
Christian Lamparter
Rob Herring
Miaoqian Lin
Lv Ruyi (CGEL ZTE)
André Apitzsch
Ben Dooks
zhanglianjie
Jiapeng Chong
Dongli Zhang
Yihao Han
Toke Høiland-Jørgensen
Niklas Söderlund
Ville Syrjälä
Tobias Huschle