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'add-the-capability-to-consume-sram-for-hwfd-descriptor-queue-in-airoha_eth-driver'
Lorenzo Bianconi says:
====================
Add the capability to consume SRAM for hwfd descriptor queue in airoha_eth driver
In order to improve packet processing and packet forwarding
performances, EN7581 SoC supports consuming SRAM instead of DRAM for hw
forwarding descriptors queue. For downlink hw accelerated traffic
request to consume SRAM memory for hw forwarding descriptors queue.
Moreover, in some configurations QDMA blocks require a contiguous block
of system memory for hwfd buffers queue. Introduce the capability to
allocate hw buffers forwarding queue via the reserved-memory DTS
property instead of running dmam_alloc_coherent().
v2: https://lore.kernel.org/r/20250509-airopha-desc-sram-v2-0-9dc3d8076dfb@kernel.org
v1: https://lore.kernel.org/r/20250507-airopha-desc-sram-v1-0-d42037431bfa@kernel.org
====================
Link: https://patch.msgid.link/20250521-airopha-desc-sram-v3-0-a6e9b085b4f0@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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In order to improve packet processing and packet forwarding
performances, EN7581 SoC supports consuming SRAM instead of DRAM for
hw forwarding descriptors queue.
For downlink hw accelerated traffic request to consume SRAM memory
for hw forwarding descriptors queue.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250521-airopha-desc-sram-v3-4-a6e9b085b4f0@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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In some configurations QDMA blocks require a contiguous block of
system memory for hwfd buffers queue. Introduce the capability to allocate
hw buffers forwarding queue via the reserved-memory DTS property instead of
running dmam_alloc_coherent().
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250521-airopha-desc-sram-v3-3-a6e9b085b4f0@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Since hfwd descriptor and buffer queues are allocated via
dmam_alloc_coherent() we do not need to store their references
in airoha_qdma struct. This patch does not introduce any logical changes,
just code clean-up.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250521-airopha-desc-sram-v3-2-a6e9b085b4f0@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Introduce memory-region and memory-region-names properties for the
ethernet node available on EN7581 SoC in order to reserve system memory
for hw forwarding buffers queue used by the QDMA modules.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20250521-airopha-desc-sram-v3-1-a6e9b085b4f0@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Jiawen Wu says:
====================
Support phylink and link/gpio irqs for AML 25G/10G devices, and complete
PTP and SRIOV.
====================
Link: https://patch.msgid.link/
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Since .mac_link_up and .mac_link_down are changed for AML 25G/10G NICs,
the SR-IOV related function should be invoked in these new functions, to
bring VFs link up.
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Link: https://patch.msgid.link/BA8B302B7AAB6EA6+20250521064402.22348-10-jiawenwu@trustnetic.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Support PTP clock and 1PPS output signal for AML devices.
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Link: https://patch.msgid.link/F2F6E5E8899D2C20+20250521064402.22348-9-jiawenwu@trustnetic.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The new added mailbox commands require a new released firmware version.
Otherwise, a lot of logs "Unknown FW command" would be printed. And the
devices may not work properly. So add the test command in the probe
function.
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/18283F17BE0FA335+20250521064402.22348-8-jiawenwu@trustnetic.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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For AML 25G/10G devices, some of the information returned from
phylink_ethtool_ksettings_get() is not correct, since there is a
fixed-link mode. So add additional corrections.
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/C94BF867617C544D+20250521064402.22348-7-jiawenwu@trustnetic.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The driver needs to handle GPIO interrupts to identify SFP module and
configure PHY by sending mailbox messages to firmware.
Since the SFP module needs to wait for ready to get information when it
is inserted, workqueue is added to handle delayed tasks. And each SW-FW
interaction takes time to wait, so they are processed in the workqueue
instead of IRQ handler function.
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/399624AF221E8E28+20250521064402.22348-6-jiawenwu@trustnetic.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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There is a new PHY attached to AML 25G/10G NIC, which is different from
SP 10G/1G NIC. But the PHY configuration is handed over to firmware, and
also I2C is controlled by firmware. So the different PHYLINK fixed-link
mode is added for these devices.
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/987B973A5929CD48+20250521064402.22348-5-jiawenwu@trustnetic.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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For the following patches to support PHYLINK for AML 25G devices,
separate MAC type wx_mac_aml40 to maintain the driver of 40G devices.
Because 40G devices will complete support later, not now.
And this patch makes the 25G devices use some PHYLINK interfaces, but it
is not yet create PHYLINK and cannot be used on its own. It is just
preparation for the next patches.
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/592B1A6920867D0C+20250521064402.22348-4-jiawenwu@trustnetic.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Most of the different code that requires MAC type in the common library
is due to NGBE only supports a few queues and pools, unlike TXGBE, which
supports 128 queues and 64 pools. This difference accounts for most of
the hardware configuration differences in the driver code. So add a flag
bit "WX_FLAG_MULTI_64_FUNC" for them to clean-up the driver code.
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/C731132E124D75E5+20250521064402.22348-3-jiawenwu@trustnetic.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Since AML devices are going to reuse some definitions, remove the "SP"
qualifier from these definitions.
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/8EF712EC14B8FF70+20250521064402.22348-2-jiawenwu@trustnetic.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull final writepage conversion from Christian Brauner:
"This converts vboxfs from ->writepage() to ->writepages().
This was the last user of the ->writepage() method. So remove
->writepage() completely and all references to it"
* tag 'vfs-6.16-rc1.writepage' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
fs: Remove aops->writepage
mm: Remove swap_writepage() and shmem_writepage()
ttm: Call shmem_writeout() from ttm_backup_backup_page()
i915: Use writeback_iter()
shmem: Add shmem_writeout()
writeback: Remove writeback_use_writepage()
migrate: Remove call to ->writepage
vboxsf: Convert to writepages
9p: Add a migrate_folio method
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The KSZ9477 switch driver uses the XPCS driver to operate its SGMII
port. However there are some hardware bugs in the KSZ9477 SGMII
module so workarounds are needed. There was a proposal to update the
XPCS driver to accommodate KSZ9477, but the new code is not generic
enough to be used by other vendors. It is better to do all these
workarounds inside the KSZ9477 driver instead of modifying the XPCS
driver.
There are 3 hardware issues. The first is the MII_ADVERTISE register
needs to be write once after reset for the correct code word to be
sent. The XPCS driver disables auto-negotiation first before
configuring the SGMII/1000BASE-X mode and then enables it back. The
KSZ9477 driver then writes the MII_ADVERTISE register before enabling
auto-negotiation. In 1000BASE-X mode the MII_ADVERTISE register will
be set, so KSZ9477 driver does not need to write it.
The second issue is the MII_BMCR register needs to set the exact speed
and duplex mode when running in SGMII mode. During link polling the
KSZ9477 will check the speed and duplex mode are different from
previous ones and update the MII_BMCR register accordingly.
The last issue is 1000BASE-X mode does not work with auto-negotiation
on. The cause is the local port hardware does not know the link is up
and so network traffic is not forwarded. The workaround is to write 2
additional bits when 1000BASE-X mode is configured.
Note the SGMII interrupt in the port cannot be masked. As that
interrupt is not handled in the KSZ9477 driver the SGMII interrupt bit
will not be set even when the XPCS driver sets it.
Signed-off-by: Tristram Ha <tristram.ha@microchip.com>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Tested-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://patch.msgid.link/20250520230720.23425-1-Tristram.Ha@microchip.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs directory lookup updates from Christian Brauner:
"This contains cleanups for the lookup_one*() family of helpers.
We expose a set of functions with names containing "lookup_one_len"
and others without the "_len". This difference has nothing to do with
"len". It's rater a historical accident that can be confusing.
The functions without "_len" take a "mnt_idmap" pointer. This is found
in the "vfsmount" and that is an important question when choosing
which to use: do you have a vfsmount, or are you "inside" the
filesystem. A related question is "is permission checking relevant
here?".
nfsd and cachefiles *do* have a vfsmount but *don't* use the non-_len
functions. They pass nop_mnt_idmap and refuse to work on filesystems
which have any other idmap.
This work changes nfsd and cachefile to use the lookup_one family of
functions and to explictily pass &nop_mnt_idmap which is consistent
with all other vfs interfaces used where &nop_mnt_idmap is explicitly
passed.
The remaining uses of the "_one" functions do not require permission
checks so these are renamed to be "_noperm" and the permission
checking is removed.
This series also changes these lookup function to take a qstr instead
of separate name and len. In many cases this simplifies the call"
* tag 'vfs-6.16-rc1.async.dir' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
VFS: change lookup_one_common and lookup_noperm_common to take a qstr
Use try_lookup_noperm() instead of d_hash_and_lookup() outside of VFS
VFS: rename lookup_one_len family to lookup_noperm and remove permission check
cachefiles: Use lookup_one() rather than lookup_one_len()
nfsd: Use lookup_one() rather than lookup_one_len()
VFS: improve interface for lookup_one functions
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Syzkaller, courtesy of syzbot, identified an error (see report [1]) in
aqc111 driver, caused by incomplete sanitation of usb read calls'
results. This problem is quite similar to the one fixed in commit
920a9fa27e78 ("net: asix: add proper error handling of usb read errors").
For instance, usbnet_read_cmd() may read fewer than 'size' bytes,
even if the caller expected the full amount, and aqc111_read_cmd()
will not check its result properly. As [1] shows, this may lead
to MAC address in aqc111_bind() being only partly initialized,
triggering KMSAN warnings.
Fix the issue by verifying that the number of bytes read is
as expected and not less.
[1] Partial syzbot report:
BUG: KMSAN: uninit-value in is_valid_ether_addr include/linux/etherdevice.h:208 [inline]
BUG: KMSAN: uninit-value in usbnet_probe+0x2e57/0x4390 drivers/net/usb/usbnet.c:1830
is_valid_ether_addr include/linux/etherdevice.h:208 [inline]
usbnet_probe+0x2e57/0x4390 drivers/net/usb/usbnet.c:1830
usb_probe_interface+0xd01/0x1310 drivers/usb/core/driver.c:396
call_driver_probe drivers/base/dd.c:-1 [inline]
really_probe+0x4d1/0xd90 drivers/base/dd.c:658
__driver_probe_device+0x268/0x380 drivers/base/dd.c:800
...
Uninit was stored to memory at:
dev_addr_mod+0xb0/0x550 net/core/dev_addr_lists.c:582
__dev_addr_set include/linux/netdevice.h:4874 [inline]
eth_hw_addr_set include/linux/etherdevice.h:325 [inline]
aqc111_bind+0x35f/0x1150 drivers/net/usb/aqc111.c:717
usbnet_probe+0xbe6/0x4390 drivers/net/usb/usbnet.c:1772
usb_probe_interface+0xd01/0x1310 drivers/usb/core/driver.c:396
...
Uninit was stored to memory at:
ether_addr_copy include/linux/etherdevice.h:305 [inline]
aqc111_read_perm_mac drivers/net/usb/aqc111.c:663 [inline]
aqc111_bind+0x794/0x1150 drivers/net/usb/aqc111.c:713
usbnet_probe+0xbe6/0x4390 drivers/net/usb/usbnet.c:1772
usb_probe_interface+0xd01/0x1310 drivers/usb/core/driver.c:396
call_driver_probe drivers/base/dd.c:-1 [inline]
...
Local variable buf.i created at:
aqc111_read_perm_mac drivers/net/usb/aqc111.c:656 [inline]
aqc111_bind+0x221/0x1150 drivers/net/usb/aqc111.c:713
usbnet_probe+0xbe6/0x4390 drivers/net/usb/usbnet.c:1772
Reported-by: syzbot+3b6b9ff7b80430020c7b@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=3b6b9ff7b80430020c7b
Tested-by: syzbot+3b6b9ff7b80430020c7b@syzkaller.appspotmail.com
Fixes: df2d59a2ab6c ("net: usb: aqc111: Add support for getting and setting of MAC address")
Signed-off-by: Nikita Zhandarovich <n.zhandarovich@fintech.ru>
Link: https://patch.msgid.link/20250520113240.2369438-1-n.zhandarovich@fintech.ru
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Prevent drivers from using this directly.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Simona Vetter <simona.vetter@ffwll.ch>
Link: https://lore.kernel.org/r/20240723121750.2086-8-christian.koenig@amd.com
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This reverts commit 24dc64c1ba5c3ef0463d59fef6df09336754188d.
Shouldn't be needed by drivers any more.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Danilo Krummrich <dakr@kernel.org>
Reviewed-by: Simona Vetter <simona.vetter@ffwll.ch>
Link: https://lore.kernel.org/r/20240723121750.2086-6-christian.koenig@amd.com
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The function max14577_reg_get_current_limit() calls the function
max14577_read_reg(), but does not check its return value. A proper
implementation can be found in max14577_get_online().
Add a error check for the max14577_read_reg() and return error code
if the function fails.
Fixes: b0902bbeb768 ("regulator: max14577: Add regulator driver for Maxim 14577")
Cc: stable@vger.kernel.org # v3.14
Signed-off-by: Wentao Liang <vulab@iscas.ac.cn>
Link: https://patch.msgid.link/20250526025627.407-1-vulab@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
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'struct thermal_zone_device_ops' could be left unmodified in this driver.
Constifying this structure moves some data to a read-only section, so
increases overall security, especially when the structure holds some
function pointers.
While at it, also constify a struct thermal_zone_params.
On a x86_64, with allmodconfig:
Before:
======
text data bss dec hex filename
26422 12584 512 39518 9a5e drivers/platform/x86/acerhdf.o
After:
=====
text data bss dec hex filename
26646 12360 512 39518 9a5e drivers/platform/x86/acerhdf.o
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/e502fadf2c6b24fc4ec3a7880533f7ca68429720.1748177235.git.christophe.jaillet@wanadoo.fr
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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xfstests generic/482 tests the file system consistency after each
FUA operation. It fails when run on exfat.
exFAT clears the volume dirty flag with a FUA operation during sync.
Since s_lock is not held when data is being written to a file, sync
can be executed at the same time. When data is being written to a
file, the FAT chain is updated first, and then the file size is
updated. If sync is executed between updating them, the length of the
FAT chain may be inconsistent with the file size.
To avoid the situation where the file system is inconsistent but the
volume dirty flag is cleared, this commit moves the clearing of the
volume dirty flag from exfat_fs_sync() to exfat_put_super(), so that
the volume dirty flag is not cleared until unmounting. After the
move, there is no additional action during sync, so exfat_fs_sync()
can be deleted.
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
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The double free could happen in the following path.
exfat_create_upcase_table()
exfat_create_upcase_table() : return error
exfat_free_upcase_table() : free ->vol_utbl
exfat_load_default_upcase_table : return error
exfat_kill_sb()
delayed_free()
exfat_free_upcase_table() <--------- double free
This patch set ->vol_util as NULL after freeing it.
Reported-by: Jianzhou Zhao <xnxc22xnxc22@qq.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
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Adjust the enabling/disabling steps of the DP audio SDP splitting
according to a recent Bspec update. This moves the enabling to the audio
codec enable sequence after the transcoder is enabled and disables SDP
splitting explicitly during the audio disable sequence.
Bspec requires waiting for a vblank event after the transcoder is
enabled and before SDP splitting is enabled. There is no need for an
explicit wait for this, since after the transcoder is enabled this
vblank event is guaranteed to have happened via a flip done wait (see
intel_atomic_commit_tail() -> drm_atomic_helper_wait_for_flip_done()).
The bspec update is for LNL+ only, but the HW team clarified that this
has been always the intended sequence on all platforms and bspec will be
updated everywhere accordingly.
The way SDP splitting was originally enabled matched the version of
bspec at that time. Adding here the Fixes: line still, since this
change fixes a FIFO underrun on PTL during output enabling when DSC is
enabled.
Bspec: 49283, 68943
Fixes: 8853750dbad8 ("drm/i915: Enable SDP split for DP2.0")
Cc: Vinod Govindapillai <vinod.govindapillai@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://lore.kernel.org/r/20250520142219.1688401-1-imre.deak@intel.com
(cherry picked from commit 56764c845aa5be14cd53702fc9f2da23e25857de)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
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The doctest example uses a function only available for CONFIG_OF and so
the build with doc tests fails when it isn't enabled.
error[E0599]: no function or associated item named `from_of_cpumask`
found for struct `rust_doctest_kernel_alloc_kbox_rs_4::kernel::opp::Table`
in the current scope
Fix this by making the doctest depend on CONFIG_OF.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202505260856.ZQWHW2xT-lkp@intel.com/
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://patch.msgid.link/a80bfedcb4d94531dc27d3b48062db5042078e88.1748237646.git.viresh.kumar@linaro.org
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm
Merge operating performance points (OPP) updates for 6.16 from Viresh
Kumar:
"- OPP: Add dev_pm_opp_set_level() (Praveen Talari).
- Introduce scope-based cleanup headers and mutex locking guards in OPP
core (Viresh Kumar).
- switch to use kmemdup_array() (Zhang Enpei)."
* tag 'opp-updates-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm:
OPP: switch to use kmemdup_array()
OPP: Add dev_pm_opp_set_level()
OPP: Use mutex locking guards
OPP: Define and use scope-based cleanup helpers
OPP: Use scope-based OF cleanup helpers
OPP: Return opp_table from dev_pm_opp_get_opp_table_ref()
OPP: Return opp from dev_pm_opp_get()
OPP: Remove _get_opp_table_kref()
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KASAN reported out of bounds access - cs_dsp_ctl_cache_init_multiple_offsets().
The code uses mock_coeff_template.length_bytes (4 bytes) for register value
allocations. But later, this length is set to 8 bytes which causes
test code failures.
As fix, just remove the lenght override, keeping the original value 4
for all operations.
Cc: Simon Trimmer <simont@opensource.cirrus.com>
Cc: Charles Keepax <ckeepax@opensource.cirrus.com>
Cc: Richard Fitzgerald <rf@opensource.cirrus.com>
Cc: patches@opensource.cirrus.com
Cc: stable@vger.kernel.org
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Reviewed-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://patch.msgid.link/20250523154151.1252585-1-perex@perex.cz
Signed-off-by: Mark Brown <broonie@kernel.org>
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KASAN reported out of bounds access - cs_dsp_mock_wmfw_add_info(),
because the source string length was rounded up to the allocation size.
Cc: Simon Trimmer <simont@opensource.cirrus.com>
Cc: Charles Keepax <ckeepax@opensource.cirrus.com>
Cc: Richard Fitzgerald <rf@opensource.cirrus.com>
Cc: patches@opensource.cirrus.com
Cc: stable@vger.kernel.org
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Reviewed-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://patch.msgid.link/20250523155814.1256762-1-perex@perex.cz
Signed-off-by: Mark Brown <broonie@kernel.org>
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In memory bound systems, a large number of warnings for failing this
allocation repeatedly may mask any real issues in the system
during memory pressure being reported in dmesg. Change this to
warning only once.
Signed-off-by: Usama Arif <usamaarif642@gmail.com>
Reported-by: Vlad Poenaru <vlad.wing@gmail.com>
Closes: https://lore.kernel.org/all/17fab2d6-5a74-4573-bcc3-b75951508f0a@gmail.com/
Reviewed-by: Shakeel Butt <shakeel.butt@linux.dev>
Reviewed-by: SeongJae Park <sj@kernel.org>
Acked-by: Harry Yoo <harry.yoo@oracle.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
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Lower the I2C2 bus clock frequency on the RZ/G3E SMARC SoM from 1MHz to
400kHz to improve compatibility with a wider range of I2C peripherals.
As the GreenPAK device is programmed to operate at 400kHz, the previous
1MHz setting was too aggressive, causing it to experience timing issues.
Fixes: f7a98e256ee3 ("arm64: dts: renesas: rzg3e-smarc-som: Add I2C2 device pincontrol")
Signed-off-by: John Madieu <john.madieu.xa@bp.renesas.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20250518220812.1480696-1-john.madieu.xa@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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Commit 3c8260ce7663 ("mtd: rawnand: brcmnand: exec_op implementation")
removed legacy interface functions, breaking < v5.0 controllers support.
In order to fix older controllers we need to add an alternative exec_op
implementation which doesn't rely on low level registers.
Fixes: 3c8260ce7663 ("mtd: rawnand: brcmnand: exec_op implementation")
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: David Regan <dregan@broadcom.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: William Zhang <william.zhang@broadcom.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
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sunxi_nfc_hw_ecc_write_chunk
The function sunxi_nfc_hw_ecc_write_chunk() calls the
sunxi_nfc_hw_ecc_write_chunk(), but does not call the configuration
function sunxi_nfc_randomizer_config(). Consequently, the randomization
might not conduct correctly, which will affect the lifespan of NAND flash.
A proper implementation can be found in sunxi_nfc_hw_ecc_write_page_dma().
Add the sunxi_nfc_randomizer_config() to config randomizer.
Fixes: 4be4e03efc7f ("mtd: nand: sunxi: add randomizer support")
Cc: stable@vger.kernel.org # v4.6
Signed-off-by: Wentao Liang <vulab@iscas.ac.cn>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
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neigh_connected_output()
Replace kfree_skb() used in neigh_resolve_output() and
neigh_connected_output() with kfree_skb_reason().
Following new skb drop reason is added:
/* failed to fill the device hard header */
SKB_DROP_REASON_NEIGH_HH_FILLFAIL
Signed-off-by: Qiu Yutan <qiu.yutan@zte.com.cn>
Signed-off-by: Jiang Kun <jiang.kun2@zte.com.cn>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Xu Xin <xu.xin16@zte.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use prime 3 for length to make offset slowly drift away.
Signed-off-by: Stanislav Fomichev <stfomichev@gmail.com>
Acked-by: Mina Almasry <almasrymina@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add new -z argument to specify max IOV size. By default, use
single large IOV.
Signed-off-by: Stanislav Fomichev <stfomichev@gmail.com>
Reviewed-by: Mina Almasry <almasrymina@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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sendmsg() with a single iov becomes ITER_UBUF, sendmsg() with multiple
iovs becomes ITER_IOVEC. iter_iov_len does not return correct
value for UBUF, so teach to treat UBUF differently.
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Pavel Begunkov <asml.silence@gmail.com>
Cc: Mina Almasry <almasrymina@google.com>
Fixes: bd61848900bf ("net: devmem: Implement TX path")
Signed-off-by: Stanislav Fomichev <stfomichev@gmail.com>
Acked-by: Mina Almasry <almasrymina@google.com>
Reviewed-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Do not schedule vblank worker for LUT update if the registers are
double buffered
v2: Do not schedule the worker at all (Ville)
Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Link: https://lore.kernel.org/r/20250523062041.166468-12-chaitanya.kumar.borah@intel.com
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Since Double Buffered LUT registers can be written in active region
no need to preload them.
Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Link: https://lore.kernel.org/r/20250523062041.166468-11-chaitanya.kumar.borah@intel.com
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Double Buffered LUT registers can be programmed in the active region.
This patch implements the MMIO path for it. Program the registers after
evading vblank. The HW latches on to the registers after delayed vblank.
It takes around 1024 cdclk cycles(~one scanline) for this.
Following assumptions have been made while making this change
- Current vblank evasion time is sufficient for programming
the LUT registers.
- Current guardband calculation would be sufficient for the HW
to latch on to the new values
v2: move loading LUTs to commit_pipe_post_planes() since a vblank
evasion failure for this is probably less drastic than
for plane programming. (Ville)
Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Link: https://lore.kernel.org/r/20250523062041.166468-10-chaitanya.kumar.borah@intel.com
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With addition of double buffered GAMMA registers in PTL, we can now
program them in the active region. Use GOSUB instruction of DSB to
program them.
It is done in the following steps:
1. intel_color_prepare_commit()
- If the platform supports, prepare a dsb instance (dsb_color)
hooked to DSB0.
- Add all the register write instructions to dsb_color through
the load_lut() hook
- Do not add the vrr_send_push() logic to the buffer as it
should be taken care by dsb_commit instance of DSB0
- Finish preparation of the buffer by aligning it to 64 bit
2. intel_atomic_dsb_finish()
- Add the gosub instruction into the dsb_commit instance of DSB0
using intel_dsb_gosub()
- If needed, add the vrr_send_push() logic to dsb_commit after it
v2: Refactor code to simplify commit completion flow.
Add some helpers along the way (Ville)
v3: s/doubled/double and add display to commit message prefix (Uma)
Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Link: https://lore.kernel.org/r/20250523062041.166468-9-chaitanya.kumar.borah@intel.com
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With double buffer gamma registers in the mix, we need not wait for
vblank to execute gamma writes through dsb. Before we implement
that s/dsb_color_vblank/dsb_color.
Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Link: https://lore.kernel.org/r/20250523062041.166468-8-chaitanya.kumar.borah@intel.com
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DSB raises an interrupt when there is a nested GOSUB command or
illegal Head/Tail. Add support to log such errors in the DSB
interrupt handler.
v2: Enable support only in platforms that support this (Ville)
Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Link: https://lore.kernel.org/r/20250523062041.166468-7-chaitanya.kumar.borah@intel.com
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A DSB buffer which will be used for GOSUB execution does not need
the DEWAKE mechanism but still need to be 64 bit aligned. Add helper
to finish preparation of a dsb buffer to be executed with GOSUB
instruction.
v2: Add a cacheline of noops at the end of GOSUB buffer (Ville)
Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Link: https://lore.kernel.org/r/20250523062041.166468-6-chaitanya.kumar.borah@intel.com
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Add support for the new GOSUB DSB instruction (available on ptl+),
which instructs the DSB to jump to a different buffer, execute
the commands there, and then return execution to the next
instruction in the original buffer.
There are a few alignment related workarounds that need to
be dealt with when emitting GOSUB instruction.
v2: Right shift head and tail pointer passed to gosub command (chaitanya)
v3: Add macro for right shifting head/tail pointers (Animesh)
v4: Fix typo in commit message (Uma)
Add comments explaining why right shifting htp is needed (Animesh)
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Reviewed-by: Animesh Manna <animesh.manna@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Link: https://lore.kernel.org/r/20250523062041.166468-5-chaitanya.kumar.borah@intel.com
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Extract the code that calculates the DSB_HEAD/TAIL register
values into small helpers. We already have two copies of this,
and soon there will be a third.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Reviewed-by: Animesh Manna <animesh.manna@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Link: https://lore.kernel.org/r/20250523062041.166468-4-chaitanya.kumar.borah@intel.com
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Extract the DSB tail alignment checks into helper. We already
have two uses of this, and soon we'll get a third.
v2: s/soo/soon in commit message (Animesh)
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Reviewed-by: Animesh Manna <animesh.manna@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Link: https://lore.kernel.org/r/20250523062041.166468-3-chaitanya.kumar.borah@intel.com
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Extract the code that alings the next instruction to the next
QW boundary into a small helper. I'll have some more uses for
this later.
Also explain why we don't have to zero out the extra DW.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Reviewed-by: Animesh Manna <animesh.manna@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Link: https://lore.kernel.org/r/20250523062041.166468-2-chaitanya.kumar.borah@intel.com
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Signal vt subsystem to redraw console when switching to dummycon
with deferred takeover enabled. Makes the console switch to fbcon
and displays the available output.
With deferred takeover enabled, dummycon acts as the placeholder
until the first output to the console happens. At that point, fbcon
takes over. If the output happens while dummycon is not active, it
cannot inform fbcon. This is the case if the vt subsystem runs in
graphics mode.
A typical graphical boot starts plymouth, a display manager and a
compositor; all while leaving out dummycon. Switching to a text-mode
console leaves the console with dummycon even if a getty terminal
has been started.
Returning true from dummycon's con_switch helper signals the vt
subsystem to redraw the screen. If there's output available dummycon's
con_putc{s} helpers trigger deferred takeover of fbcon, which sets a
display mode and displays the output. If no output is available,
dummycon remains active.
v2:
- make the comment slightly more verbose (Javier)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reported-by: Andrei Borzenkov <arvidjaar@gmail.com>
Closes: https://bugzilla.suse.com/show_bug.cgi?id=1242191
Tested-by: Andrei Borzenkov <arvidjaar@gmail.com>
Acked-by: Javier Martinez Canillas <javierm@redhat.com>
Fixes: 83d83bebf401 ("console/fbcon: Add support for deferred console takeover")
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: <stable@vger.kernel.org> # v4.19+
Link: https://lore.kernel.org/r/20250520071418.8462-1-tzimmermann@suse.de
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