The "*cmd" variable can be controlled by the user via debugfs. That means
"new_cam" can be as high as 255 while the size of the uc->updated[] array
is UCSI_MAX_ALTMODES (30).
The call tree is:
ucsi_cmd() // val comes from simple_attr_write_xsigned()
-> ucsi_send_command()
-> ucsi_send_command_common()
-> ucsi_run_command() // calls ucsi->ops->sync_control()
-> ucsi_ccg_sync_control()
Fixes: 170a6726d0 ("usb: typec: ucsi: add support for separate DP altmode devices")
Cc: stable <stable@kernel.org>
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/325102b3-eaa8-4918-a947-22aca1146586@stanley.mountain
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
If the device was already runtime suspended then during system suspend
we cannot access the device registers else it will crash.
Also we cannot access any registers after dwc3_core_exit() on some
platforms so move the dwc3_enable_susphy() call to the top.
Cc: stable@vger.kernel.org # v5.15+
Reported-by: William McVicker <willmcvicker@google.com>
Closes: https://lore.kernel.org/all/ZyVfcUuPq56R2m1Y@google.com
Fixes: 705e3ce37b ("usb: dwc3: core: Fix system suspend on TI AM62 platforms")
Signed-off-by: Roger Quadros <rogerq@kernel.org>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Tested-by: Will McVicker <willmcvicker@google.com>
Link: https://lore.kernel.org/r/20241104-am62-lpm-usb-fix-v1-1-e93df73a4f0d@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
If the read of USB_PDPHY_RX_ACKNOWLEDGE_REG failed, then hdr_len and
txbuf_len are uninitialized. This commit stops to print uninitialized
value and misleading/false data.
Cc: stable@vger.kernel.org
Fixes: a4422ff221 (" usb: typec: qcom: Add Qualcomm PMIC Type-C driver")
Signed-off-by: Rex Nie <rex.nie@jaguarmicro.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Acked-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Link: https://lore.kernel.org/r/20241030133632.2116-1-rex.nie@jaguarmicro.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The ESAI of i.MX8QM is the same as i.MX6ULL. So allow fsl,imx8qm-esai
fallback to fsl,imx6ull-esai.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20241028-esai_fix-v1-1-3c1432a5613c@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Add OF device ID entry for SM8750 sound card with its own model name,
used to load proper Audioreach topology file. The sound card is
compatible with SM8450 and newer family.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20241101165159.370619-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
On i.MX95, the MQS module in Always-on (AON) domain only can
be accessed by System Controller Management Interface (SCMI)
MISC Protocol. So define a specific regmap_config for the case.
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://patch.msgid.link/20241025062935.1071408-1-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Fix an issue detected by the Smatch tool:
sound/soc/bcm/bcm63xx-pcm-whistler.c:264 i2s_dma_isr()
error: uninitialized symbol 'val_1'.
sound/soc/bcm/bcm63xx-pcm-whistler.c:264 i2s_dma_isr()
error: uninitialized symbol 'val_2'.
These errors were triggered because the variables 'val_1' and 'val_2'
could remain uninitialized if 'offlevel' is zero, meaning the loop
that assigns values to them does not execute. In this case,
'dma_addr_next' would use uninitialized data, potentially leading
to undefined behavior.
To resolve this, a conditional update for 'dma_addr_next' is added,
ensuring it is assigned only when 'val_1' and 'val_2' are read.
A new boolean variable 'val_read' flags when the values have been
retrieved, setting 'dma_addr_next' only if valid data is available.
This solution prevents the use of uninitialized data, maintaining
defined behavior for 'dma_addr_next' in all cases, and aligns with
expected usage of I2S RX descriptor data.
Signed-off-by: Suraj Sonawane <surajsonawane0215@gmail.com>
Link: https://patch.msgid.link/20241102123630.25446-1-surajsonawane0215@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
An atomicity violation occurs when the validity of the variables
da7219->clk_src and da7219->mclk_rate is being assessed. Since the entire
assessment is not protected by a lock, the da7219 variable might still be
in flux during the assessment, rendering this check invalid.
To fix this issue, we recommend adding a lock before the block
if ((da7219->clk_src == clk_id) && (da7219->mclk_rate == freq)) so that
the legitimacy check for da7219->clk_src and da7219->mclk_rate is
protected by the lock, ensuring the validity of the check.
This possible bug is found by an experimental static analysis tool
developed by our team. This tool analyzes the locking APIs
to extract function pairs that can be concurrently executed, and then
analyzes the instructions in the paired functions to identify possible
concurrency bugs including data races and atomicity violations.
Fixes: 6d817c0e9f ("ASoC: codecs: Add da7219 codec driver")
Cc: stable@vger.kernel.org
Signed-off-by: Qiu-ji Chen <chenqiuji666@gmail.com>
Link: https://patch.msgid.link/20240930101216.23723-1-chenqiuji666@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Some Qualcomm X1E laptops have only two speakers. Regardless whether
this sound card driver is suitable for them (we could re-use one for
some older SoC), we should set reasonable channel map depending on the
number of channels, not always 4-speaker setup.
This change is necessary for bringing audio support on Lenovo Thinkpad
T14s with Qualcomm X1E78100 and only two speakers.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20241023124152.130706-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
i.MX6SL and i.MX6SX SPDIF blocks are compatible with i.MX35.
Document 'fsl,imx35-spdif' as a fallback compatible for these two
chip variants.
This fixes the following dt-schema warnings:
compatible: ['fsl,imx6sl-spdif', 'fsl,imx35-spdif'] is too long
compatible: ['fsl,imx6sx-spdif', 'fsl,imx35-spdif'] is too long
Signed-off-by: Fabio Estevam <festevam@denx.de>
Link: https://patch.msgid.link/20241028020749.36972-1-festevam@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Shared the regular buffered write iomap_ops with the page fault path
and just check for the IOMAP_FAULT flag to skip delalloc punching.
This keeps the delalloc punching checks in one place, and will make it
easier to convert iomap to an iter model where the begin and end
handlers are merged into a single callback.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
xfs_filemap_huge_fault only ever serves DAX faults, so hard code the
call to xfs_dax_read_fault and open code __xfs_filemap_fault in the
only remaining caller.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
Only two of the callers of __xfs_filemap_fault every handle read faults.
Split the write_fault handling out of __xfs_filemap_fault so that all
callers call that directly either conditionally or unconditionally and
only leave the read fault handling in __xfs_filemap_fault.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
Split the xfs_filemap_fault trace event into separate ones for read and
write faults and move them into the applicable locations.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
It's just read in from the superblock and used without doing any
validity checks at all on the value.
Fixes: fb4f2b4e5a ("xfs: add sparse inode chunk alignment superblock field")
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
xfs_zero_extent does some really odd gymnstics to calculate the block
layer sectors numbers passed to blkdev_issue_zeroout. This is because it
used to call sb_issue_zeroout and the calculations in that helper got
open coded here in the rather misleadingly named commit 3dc2916107
("dax: use sb_issue_zerout instead of calling dax_clear_sectors").
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
There are two invocations of xfs_alloc_log_agf in xfs_alloc_put_freelist.
The AGF does not change between the two calls. Although this does not pose
any practical problems, it seems like a small mistake. Therefore, fix it
by removing the first xfs_alloc_log_agf invocation.
Signed-off-by: Long Li <leo.lilong@huawei.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
When the driver is uninstalled and the VF is disabled concurrently, a
kernel crash occurs. The reason is that the two actions call function
pci_disable_sriov(). The num_VFs is checked to determine whether to
release the corresponding resources. During the second calling, num_VFs
is not 0 and the resource release function is called. However, the
corresponding resource has been released during the first invoking.
Therefore, the problem occurs:
[15277.839633][T50670] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000020
...
[15278.131557][T50670] Call trace:
[15278.134686][T50670] klist_put+0x28/0x12c
[15278.138682][T50670] klist_del+0x14/0x20
[15278.142592][T50670] device_del+0xbc/0x3c0
[15278.146676][T50670] pci_remove_bus_device+0x84/0x120
[15278.151714][T50670] pci_stop_and_remove_bus_device+0x6c/0x80
[15278.157447][T50670] pci_iov_remove_virtfn+0xb4/0x12c
[15278.162485][T50670] sriov_disable+0x50/0x11c
[15278.166829][T50670] pci_disable_sriov+0x24/0x30
[15278.171433][T50670] hnae3_unregister_ae_algo_prepare+0x60/0x90 [hnae3]
[15278.178039][T50670] hclge_exit+0x28/0xd0 [hclge]
[15278.182730][T50670] __se_sys_delete_module.isra.0+0x164/0x230
[15278.188550][T50670] __arm64_sys_delete_module+0x1c/0x30
[15278.193848][T50670] invoke_syscall+0x50/0x11c
[15278.198278][T50670] el0_svc_common.constprop.0+0x158/0x164
[15278.203837][T50670] do_el0_svc+0x34/0xcc
[15278.207834][T50670] el0_svc+0x20/0x30
For details, see the following figure.
rmmod hclge disable VFs
----------------------------------------------------
hclge_exit() sriov_numvfs_store()
... device_lock()
pci_disable_sriov() hns3_pci_sriov_configure()
pci_disable_sriov()
sriov_disable()
sriov_disable() if !num_VFs :
if !num_VFs : return;
return; sriov_del_vfs()
sriov_del_vfs() ...
... klist_put()
klist_put() ...
... num_VFs = 0;
num_VFs = 0; device_unlock();
In this patch, when driver is removing, we get the device_lock()
to protect num_VFs, just like sriov_numvfs_store().
Fixes: 0dd8a25f35 ("net: hns3: disable sriov before unload hclge layer")
Signed-off-by: Peiyang Wang <wangpeiyang1@huawei.com>
Signed-off-by: Jijie Shao <shaojijie@huawei.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20241101091507.3644584-1-shaojijie@huawei.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
As this iommu driver now supports page faults for requests without
PASID, page requests should be drained when a domain is removed from
the RID2PASID entry.
This results in the intel_iommu_drain_pasid_prq() call being moved to
intel_pasid_tear_down_entry(). This indicates that when a translation
is removed from any PASID entry and the PRI has been enabled on the
device, page requests are drained in the domain detachment path.
The intel_iommu_drain_pasid_prq() helper has been modified to support
sending device TLB invalidation requests for both PASID and non-PASID
cases.
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Yi Liu <yi.l.liu@intel.com>
Link: https://lore.kernel.org/r/20241101045543.70086-1-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
PASID support within the IOMMU is not required to enable the Page
Request Queue, only the PRS capability.
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Joel Granados <joel.granados@kernel.org>
Link: https://lore.kernel.org/r/20241015-jag-iopfv8-v4-5-b696ca89ba29@kernel.org
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Add IOMMU_HWPT_FAULT_ID_VALID as part of the valid flags when doing an
iommufd_hwpt_alloc allowing the use of an iommu fault allocation
(iommu_fault_alloc) with the IOMMU_HWPT_ALLOC ioctl.
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Joel Granados <joel.granados@kernel.org>
Link: https://lore.kernel.org/r/20241015-jag-iopfv8-v4-4-b696ca89ba29@kernel.org
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Move IOMMU_IOPF from under INTEL_IOMMU_SVM into INTEL_IOMMU. This
certifies that the core intel iommu utilizes the IOPF library
functions, independent of the INTEL_IOMMU_SVM config.
Signed-off-by: Joel Granados <joel.granados@kernel.org>
Link: https://lore.kernel.org/r/20241015-jag-iopfv8-v4-3-b696ca89ba29@kernel.org
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
PASID is not strictly needed when handling a PRQ event; remove the check
for the pasid present bit in the request. This change was not included
in the creation of prq.c to emphasize the change in capability checks
when handing PRQ events.
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Joel Granados <joel.granados@kernel.org>
Link: https://lore.kernel.org/r/20241015-jag-iopfv8-v4-2-b696ca89ba29@kernel.org
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
IO page faults are no longer dependent on CONFIG_INTEL_IOMMU_SVM. Move
all Page Request Queue (PRQ) functions that handle prq events to a new
file in drivers/iommu/intel/prq.c. The page_req_des struct is now
declared in drivers/iommu/intel/prq.c.
No functional changes are intended. This is a preparation patch to
enable the use of IO page faults outside the SVM/PASID use cases.
Signed-off-by: Joel Granados <joel.granados@kernel.org>
Link: https://lore.kernel.org/r/20241015-jag-iopfv8-v4-1-b696ca89ba29@kernel.org
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
There are some issues in pgtable_walk():
1. Super page is dumped as non-present page
2. dma_pte_superpage() should not check against leaf page table entries
3. Pointer pte is never NULL so checking it is meaningless
4. When an entry is not present, it still makes sense to dump the entry
content.
Fix 1,2 by checking dma_pte_superpage()'s returned value after level check.
Fix 3 by removing pte check.
Fix 4 by checking present bit after printing.
By this chance, change to print "page table not present" instead of "PTE
not present" to be clearer.
Fixes: 914ff7719e ("iommu/vt-d: Dump DMAR translation structure when DMA fault occurs")
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Link: https://lore.kernel.org/r/20241024092146.715063-3-zhenzhong.duan@intel.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
There are some issues in dmar_fault_dump_ptes():
1. return value of phys_to_virt() is used for checking if an entry is
present.
2. dump is confusing, e.g., "pasid table entry is not present", confusing
by unpresent pasid table vs. unpresent pasid table entry. Current code
means the former.
3. pgtable_walk() is called without checking if page table is present.
Fix 1 by checking present bit of an entry before dump a lower level entry.
Fix 2 by removing "entry" string, e.g., "pasid table is not present".
Fix 3 by checking page table present before walk.
Take issue 3 for example, before fix:
[ 442.240357] DMAR: pasid dir entry: 0x000000012c83e001
[ 442.246661] DMAR: pasid table entry[0]: 0x0000000000000000
[ 442.253429] DMAR: pasid table entry[1]: 0x0000000000000000
[ 442.260203] DMAR: pasid table entry[2]: 0x0000000000000000
[ 442.266969] DMAR: pasid table entry[3]: 0x0000000000000000
[ 442.273733] DMAR: pasid table entry[4]: 0x0000000000000000
[ 442.280479] DMAR: pasid table entry[5]: 0x0000000000000000
[ 442.287234] DMAR: pasid table entry[6]: 0x0000000000000000
[ 442.293989] DMAR: pasid table entry[7]: 0x0000000000000000
[ 442.300742] DMAR: PTE not present at level 2
After fix:
...
[ 357.241214] DMAR: pasid table entry[6]: 0x0000000000000000
[ 357.248022] DMAR: pasid table entry[7]: 0x0000000000000000
[ 357.254824] DMAR: scalable mode page table is not present
Fixes: 914ff7719e ("iommu/vt-d: Dump DMAR translation structure when DMA fault occurs")
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Link: https://lore.kernel.org/r/20241024092146.715063-2-zhenzhong.duan@intel.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
dmar_domian has stored the s1_cfg which includes the s1_pgtbl info, so
no need to store s1_pgtbl, hence drop it.
Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/20241025143339.2328991-1-yi.l.liu@intel.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
dmar_msi_read() has been unused since 2022 in
commit cf8e865810 ("arch: Remove Itanium (IA-64) architecture")
Remove it.
(dmar_msi_write still exists and is used once).
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Link: https://lore.kernel.org/r/20241022002702.302728-1-linux@treblig.org
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
GCC is not happy with the current code, e.g.:
.../iommu/intel/dmar.c:1063:9: note: ‘sprintf’ output between 6 and 15 bytes into a destination of size 13
1063 | sprintf(iommu->name, "dmar%d", iommu->seq_id);
When `make W=1` is supplied, this prevents kernel building. Fix it by
increasing the buffer size for device name and use sizeoF() instead of
hard coded constants.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20241014104529.4025937-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
The macro PCI_DEVID() can be used instead of compose it manually.
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20240829021011.4135618-1-ruanjinjie@huawei.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
The domain_alloc_user ops should always allocate a guest-compatible page
table unless specific allocation flags are specified.
Currently, IOMMU_HWPT_ALLOC_NEST_PARENT and IOMMU_HWPT_ALLOC_DIRTY_TRACKING
require special handling, as both require hardware support for scalable
mode and second-stage translation. In such cases, the driver should select
a second-stage page table for the paging domain.
Suggested-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20241021085125.192333-8-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
The first stage page table is compatible across host and guest kernels.
Therefore, this driver uses the first stage page table as the default for
paging domains.
The helper first_level_by_default() determines the feasibility of using
the first stage page table based on a global policy. This policy requires
consistency in scalable mode and first stage translation capability among
all iommu units. However, this is unnecessary as domain allocation,
attachment, and removal operations are performed on a per-device basis.
The domain type (IOMMU_DOMAIN_DMA vs. IOMMU_DOMAIN_UNMANAGED) should not
be a factor in determining the first stage page table usage. Both types
are for paging domains, and there's no fundamental difference between them.
The driver should not be aware of this distinction unless the core
specifies allocation flags that require special handling.
Convert first_level_by_default() from global to per-iommu and remove the
'type' input.
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20241021085125.192333-7-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
The requirement for consistent super page support across all the IOMMU
hardware in the system has been removed. In the past, if a new IOMMU
was hot-added and lacked consistent super page capability, the hot-add
process would be aborted. However, with the updated attachment semantics,
it is now permissible for the super page capability to vary among
different IOMMU hardware units.
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20241021085125.192333-6-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
The attributes of a paging domain are initialized during the allocation
process, and any attempt to attach a domain that is not compatible will
result in a failure. Therefore, there is no need to update the domain
attributes at the time of domain attachment.
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20241021085125.192333-5-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
The driver now supports domain_alloc_paging, ensuring that a valid device
pointer is provided whenever a paging domain is allocated. Additionally,
the dmar_domain attributes are set up at the time of allocation.
Consistent with the established semantics in the IOMMU core, if a domain is
attached to a device and found to be incompatible with the IOMMU hardware
capabilities, the operation will return an -EINVAL error. This implicitly
advises the caller to allocate a new domain for the device and attempt the
domain attachment again.
Rename prepare_domain_attach_device() to a more meaningful name.
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20241021085125.192333-4-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
With domain_alloc_paging callback supported, the legacy domain_alloc
callback will never be used anymore. Remove it to avoid dead code.
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20241021085125.192333-3-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Add the domain_alloc_paging callback for domain allocation using the
iommu_paging_domain_alloc() interface.
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20241021085125.192333-2-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Commit 6ed05c68cb ("usb: musb: sunxi: Explicitly release USB PHY on
exit") will cause that usb phy @glue->xceiv is accessed after released.
1) register platform driver @sunxi_musb_driver
// get the usb phy @glue->xceiv
sunxi_musb_probe() -> devm_usb_get_phy().
2) register and unregister platform driver @musb_driver
musb_probe() -> sunxi_musb_init()
use the phy here
//the phy is released here
musb_remove() -> sunxi_musb_exit() -> devm_usb_put_phy()
3) register @musb_driver again
musb_probe() -> sunxi_musb_init()
use the phy here but the phy has been released at 2).
...
Fixed by reverting the commit, namely, removing devm_usb_put_phy()
from sunxi_musb_exit().
Fixes: 6ed05c68cb ("usb: musb: sunxi: Explicitly release USB PHY on exit")
Cc: stable@vger.kernel.org
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Link: https://lore.kernel.org/r/20241029-sunxi_fix-v1-1-9431ed2ab826@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Daniel Machon says:
====================
net: lan969x: add VCAP functionality
== Description:
This series is the third of a multi-part series, that prepares and adds
support for the new lan969x switch driver.
The upstreaming efforts is split into multiple series (might change a
bit as we go along):
1) Prepare the Sparx5 driver for lan969x (merged)
2) Add support for lan969x (same basic features as Sparx5
provides excl. FDMA and VCAP, merged).
--> 3) Add lan969x VCAP functionality.
4) Add RGMII and FDMA functionality.
== VCAP support:
The Versatile Content-Aware Processor (VCAP) is a content-aware packet
processor that allows wirespeed packet inspection for rich
implementation of, for example, advanced VLAN and QoS classification and
manipulations, IP source guarding, longest prefix matching for Layer-3
routing, and security features for wireline and wireless applications.
This is all achieved by programming rules into the VCAP.
When a VCAP is enabled, every frame passing through the switch is
analyzed and multiple keys are created based on the contents of the
frame. The frame is examined to determine the frame type (for example,
IPv4 TCP frame), so that the frame information is extracted according to
the frame type, port-specific configuration, and classification results
from the basic classification. Keys are applied to the VCAP and when
there is a match between a key and a rule in the VCAP, the rule is then
applied to the frame from which the key was extracted.
After this series is applied, the lan969x driver will support the same
VCAP functionality as Sparx5.
== Patch breakdown:
Patch #1 exposes some VCAP symbols for lan969x.
Patch #2 replaces VCAP uses of SPX5_PORTS with n_ports from the match
data.
Patch #3 adds new VCAP constants to match data
Patch #4 removes the is_sparx5() check to now initialize the VCAP API on
lan969x.
Patch #5 adds the auto-generated VCAP data for lan969x.
Patch #6 adds the VCAP configuration data for lan969x.
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
====================
Link: https://patch.msgid.link/20241101-sparx5-lan969x-switch-driver-3-v1-0-3c76f22f4bfa@microchip.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Add configuration data (for consumption by the VCAP API) for the four
VCAP's that we are going to support. The following VCAP's will be
supported:
- VCAP CLM: (also known as IS0) is part of the analyzer and enables
frame classification using VCAP functionality.
- VCAP IS2: is part of ANA_ACL and enables access control lists, using
VCAP functionality.
- VCAP ES0: is part of the rewriter and enables rewriting of frames
using VCAP functionality.
- VCAP ES2: is part of EACL and enables egress access control lists
using VCAP functionality
The two VCAP's: CLM and IS2 use shared resources from the SUPER VCAP.
The SUPER VCAP is a shared pool of 6 blocks that can be distributed
freely among CLM and IS2. Each block in the pool has 3,072 addresses
with entries, actions, and counters. ES0 and ES2 does not use shared
resources.
In the configuration data for lan969x CLM uses blocks 2-4 with a total
of 6 lookups. IS2 uses blocks 0-1 with a total of 4 lookups.
Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com>
Reviewed-by: Jens Emil Schulz Østergaard <jensemil.schulzostergaard@microchip.com>
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Platform VCAP data for each VCAP instance is auto-generated using an
internal Microchip tool. The generated VCAP data contains information
about keyfields, keyfield sets, actionfields, actionfield sets and
typegroups, which in combination are used to encode and decode rules in
the VCAP.
Add the auto-generated VCAP file lan969x_vcap_ag_api.c and assign the
two structs: lan969x_vcaps and lan969x_vcap_stats to the match data.
Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com>
Reviewed-by: Jens Emil Schulz Østergaard <jensemil.schulzostergaard@microchip.com>
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
The is_sparx5() check was introduced in an earlier series, to make sure
the sparx5_vcap_init() was not executed on lan969x, as it was not
implemented there yet. Now that it is, remove that check.
Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com>
Reviewed-by: Jens Emil Schulz Østergaard <jensemil.schulzostergaard@microchip.com>
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
In preparation for lan969x VCAP support, add the following three new
VCAP constants to match data:
- vcaps_cfg (contains configuration data for each VCAP).
- vcaps (contains auto-generated information about VCAP keys and
actions).
- vcap_stats: (contains auto-generated string names of all the keys
and actions)
Add these constants to the Sparx5 match data constants and use them to
initialize the VCAP's in sparx5_vcap_init().
Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com>
Reviewed-by: Jens Emil Schulz Østergaard <jensemil.schulzostergaard@microchip.com>
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
The Sparx5 VCAP implementation uses the SPX5_PORTS symbol to iterate over
the 65 front ports of Sparx5. Replace the use with the n_ports constant
from the match data, which translates to 65 of Sparx5 and 30 on lan969x.
Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com>
Reviewed-by: Jens Emil Schulz Østergaard <jensemil.schulzostergaard@microchip.com>
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
In preparation for lan969x VCAP support, expose the following symbols for
use by the lan969x VCAP implementation:
- The symbols SPARX5_*_LOOKUPS defines the number of lookups in each
VCAP instance. These are the same for lan969x. Move them to the
header file.
- The struct sparx5_vcap_inst encapsulates information about a single
VCAP instance. Move this struct to the header file and declare the
sparx5_vcap_inst_cfg as extern.
Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com>
Reviewed-by: Jens Emil Schulz Østergaard <jensemil.schulzostergaard@microchip.com>
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
