Try to mitigate potential future driver core api changes by adding a
padding to struct scsi_disk.
Based on a change made to the RHEL/CENTOS 8 kernel.
Bug: 151154716
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I1191c786cb341df43a40fa1a82789759b0f431cf
Try to mitigate potential future driver core api changes by adding a
padding to struct pci_sriov, struct pci_dev, struct pci_bus, and struct
pci_driver.
Based on a change made to the RHEL/CENTOS 8 kernel.
Bug: 151154716
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I236df60165b25a33b06fc81f76014162401ba742
Add symbols to use added features to rproc and rpmsg:
- Introduction of the rpmsg ctrl interface from upstream
- Introduction of rpmsg_rx_done
- Helpers to remove rproc_mem_entries from an rproc
Bug: 235577039
Change-Id: Ic04c7f911b88a58d44622ccacd4115541da7c17f
Signed-off-by: Chris Lew <quic_clew@quicinc.com>
The rproc_da_to_va() API is an exported function, so move its
declaration from the remoteproc local remoteproc_internal.h
to the public remoteproc.h file.
This will allow drivers outside of the remoteproc folder to be
able to use this API.
Bug: 235577039
Change-Id: Id0d79c782c240c83416009fa822b8872473fb580
(cherry picked from commit b65700d046)
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
[adjusted line numbers to apply]
Signed-off-by: Drew Fustini <dfustini@baylibre.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220308172515.29556-1-dfustini@baylibre.com
Add support into the rpmsg char driver to skip copying the data into an
skb if the endpoint supports rpmsg_rx_done. If the endpoint supports
the rx_done operation, allocate a zero sized skb and set the data to
the buffer returned in the rx callback. When the packet is read from
the character device, release the memory by calling rpmsg_rx_done().
Bug: 235577039
Link: https://lore.kernel.org/lkml/1654651005-15475-3-git-send-email-quic_clew@quicinc.com/
Change-Id: I5c94c560daebc4a48cee2ecfb6a44ea6c3087e8d
Signed-off-by: Chris Lew <quic_clew@quicinc.com>
In order to reduce the amount of copies in the rpmsg framework, it is
necessary for clients to take brief ownership of the receive buffer.
Add the capability for clients to notify the rpmsg framework and the
underlying transports when it is going to hold onto a buffer and also
notify when the client is done with the buffer.
In the .rx_cb of the rpmsg drivers, if they wish to use the received
buffer at a later point, they should return RPMSG_DEFER. Otherwise
returning RPMSG_HANDLED (0) will signal the framework that the client
is done with the resources and can continue with cleanup.
The clients should check if their rpmsg endpoint supports the rx_done
operation with the new state variable in the rpmsg_endpoint since not
all endpoints will have the ability to support this operation.
Bug: 235577039
Link: https://lore.kernel.org/lkml/1654651005-15475-2-git-send-email-quic_clew@quicinc.com/
Change-Id: I008ae73d54f9d8319e9dbcafd7d9c7007fa4f234
Signed-off-by: Chris Lew <quic_clew@quicinc.com>
Add ANDROID_OEM_DATA(1) in struct ufs_dev_info to support more
feature status.
Bug: 235673196
Signed-off-by: Chao Yu <chao@kernel.org>
Change-Id: I0d0264a2434a4cc645a065cf861055f22cc41c3b
Signed-off-by: Steve Muckle <smuckle@google.com>
Add ANDROID_OEM_DATA to struct rq, which is used to implement oem's
scheduler tuning.
Bug: 188899490
Change-Id: I1904b4fd83effc4b309bfb98811e9718398504f4
Signed-off-by: Liangliang Li <liliangliang@vivo.com>
The sensor driver which register through thermal_of interface doesn't
have an option to get thermal zone critical, hot trip violation
notification from thermal core.
Add support for these ops in thermal_of interface so that sensor
driver can use these ops.
Signed-off-by: Manaf Meethalavalappu Pallikunhi <quic_manafm@quicinc.com>
Bug: 226570053
Change-Id: I5e3d5a4b360d134ae70e9fcdb88ca2b4de0b79b2
Link: https://lore.kernel.org/all/20220601131400.24627-2-quic_manafm@quicinc.com/
Signed-off-by: Manaf Meethalavalappu Pallikunhi <quic_manafm@quicinc.com>
This reverts commit b982f17e13124214c38e9b3295d8180a152e85fe.
Reinstate patch for June 17 KMI update
Bug: 233781098
Change-Id: I46ebf0f8598acbc6976380b71f7a26812478bdf7
This reverts commit 443c11e0b16bb99f9f59e563184c86d9e7f10974.
Reinstate patch for June 17 KMI update
Bug: 233781098
Change-Id: I47ebbc6a1cecc363b97e35c10a5e44d7221caa01
Enable CONFIG_SCSI_UFS_HPB such that the UFS HPB (Host Performance
Booster) feature can be used.
Bug: 235167182
Change-Id: I1aab63c83445e243be190396c452a4203e93dbc1
Signed-off-by: Bart Van Assche <bvanassche@google.com>
The sensor driver which register through thermal_of interface doesn't
have an option to get thermal zone mode change notification from
thermal core.
Add support for change_mode ops in thermal_of interface so that sensor
driver can use this ops for mode change notification.
Signed-off-by: Manaf Meethalavalappu Pallikunhi <quic_manafm@quicinc.com>
Link: https://lore.kernel.org/r/1646767586-31908-1-git-send-email-quic_manafm@quicinc.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Bug: 234115106
(cherry picked from commit bf70c57751
https: //git.kernel.org/pub/scm/linux/kernel/git/thermal/linux.git
thermal-v5.19-rc1)
Change-Id: I24bafb16ebc1d33c7ca71aa88bd964eb71973b4d
Signed-off-by: Manaf Meethalavalappu Pallikunhi <quic_manafm@quicinc.com>
Reserve ANDROID_OEM_DATA in struct mutex/rw_semaphore for recoreding
informaition about the lock, which helps to do oem specific lock
optimization.
Bug: 188869548
Change-Id: I33f767a1823f854a8deb8ba9078079aa6a9d76ea
Signed-off-by: Liangliang Li <liliangliang@vivo.com>
(cherry picked from commit 372b24bad2)
Some vendors want to add a field when a 'sruct sock' is added so give a
hook to handle this. Any memory allocated when
trace_android_rvh_sk_alloc() is called needs to be freed when
trace_android_rvh_sk_free() is called.
Note, if trace_android_rvh_sk_alloc() fails, be sure to be able to
handle this in trace_android_rvh_sk_free(), but that should not be an
issue as that needs to be addressed in vendor code that runs for 'struct
sock' objects that have been created before the vendor code is loaded no
matter what.
Bug: 171013716
Signed-off-by: Vignesh Saravanaperumal <vignesh1.s@samsung.com>
Change-Id: I108a2f31d2dcc228f46159816deee6235afafbbd
Some vendors want to add a field when a 'sruct nf_conn' is added so give a
hook to handle this. Any memory allocated when
trace_android_rvh_nf_conn_alloc() is called needs to be freed when
trace_android_rvh_nf_conn_free() is called.
Note, if trace_android_rvh_nf_conn_alloc() fails, be sure to be able to
handle this in trace_android_rvh_nf_conn_free(), but that should not be
an issue as that needs to be addressed in vendor code that runs for
'struct nf_conn' objects that have been created before the vendor code
is loaded no matter what.
Bug: 171013716
Signed-off-by: Vignesh Saravanaperumal <vignesh1.s@samsung.com>
Change-Id: I4d2b025196a3df7ba4adec313c90483811cac728
Some vendors want to add things to 'struct sock', so give them a u64
where they can then have a pointer off to their private data and they
can do whatever they want to do without breaking or changing any abi for
anyone else.
Note, usually an android trace hook is also needed to use this properly,
so be aware that this will be required as well.
Bug: 171013716
Signed-off-by: Vignesh Saravanaperumal <vignesh1.s@samsung.com>
Change-Id: Iab0b5570753d4a9722ecf9ca9eeb9b9887e2a9d9
Some vendors want to add things to 'struct nf_conn', so give them a u64
where they can then have a pointer off to their private data and they
can do whatever they want to do without breaking or changing any abi for
anyone else.
Note, usually an android trace hook is also needed to use this properly,
so be aware that this will be required as well.
Bug: 171013716
Signed-off-by: Vignesh Saravanaperumal <vignesh1.s@samsung.com>
Change-Id: I245c162ee3fb083e3f39cf7bec3bd78cb624e005
Recently, we noticed an issue where a process went into direct reclaim
while holding the kernfs rw semaphore for sysfs in write (exclusive)
mode. This caused processes who were doing DMA-BUF exports and releases
to go into uninterruptible sleep since they needed to acquire the same
semaphore for the DMA-BUF sysfs entry creation/deletion. In order to avoid
blocking DMA-BUF export for an indeterminate amount of time while
another process is holding the sysfs rw semaphore in exclusive mode,
this patch moves the per-buffer sysfs file creation to the default work
queue. Note that this can lead to a short-term inaccuracy in the dmabuf
sysfs statistics, but this is a tradeoff to prevent the hot path from
being blocked. A work_struct is added to dma_buf to achieve this, but as
it is unioned with the kobject in the sysfs_entry, dma_buf does not
increase in size.
Fixes: bdb8d06dfe ("dmabuf: Add the capability to expose DMA-BUF stats in sysfs")
Originally-by: Hridya Valsaraju <hridya@google.com>
Signed-off-by: T.J. Mercier <tjmercier@google.com>
Bug: 206979019
Link: https://lore.kernel.org/lkml/CABdmKX2dNYhgOYdrrJU6-jt6F=LjCidbKhR6t4F7yaa0SPr+-A@mail.gmail.com/T/
Change-Id: Ic0386849b6b248b0a72215633fc1a50782455bac
The associated vendor hooks/data are used for implementing dynamic memory.low protection based on memcgv2.
Bug: 232723420
Test: build pass
Change-Id: I2e92bdc2840af1eaaa08ee6427d2a82d78390005
Signed-off-by: zhaoyang.huang <zhaoyang.huang@unisoc.com>
This adds a ->execute_hs400_tuning() host callback to enable optional
support for host specific tuning for eMMC HS400 mode. Additionally, share
mmc_get_ext_csd() through the public host headerfile, to allow it to be
used by the host drivers, which is needed to support the HS400 tuning.
Signed-off-by: Wenbin Mei <wenbin.mei@mediatek.com>
Link: https://lore.kernel.org/r/20210917124803.22871-3-wenbin.mei@mediatek.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Bug: 234554003
Signed-off-by: Peng Zhou <Peng.Zhou@mediatek.com>
Change-Id: Idf4f95d2505ef68bb444e3c46c2f2e1e0924140e
(cherry picked from commit f614fb60a1)
According to JEDEC Spec, there is no need to do tuning under HS400 mode
since the Rx signal is aligned with the DS signal. However, MediaTek's IC
need set its "DS delay" internally to ensure it can latch Rx signal
correctly.
In previous version, We provide an "hs400-ds-delay" in device tree to cover
different chipset/PCB design, and it works fine in most cases. But, with
the development of process technology and the big VCore voltage scale
range(may have 0.7V/0.6V/0.55V), it is difficult to find a suitable
"hs400-ds-delay" to cover all of IC corner cases(SSSS/TTTT/FFFF). So that
We must have the ability to do hs400 online tuning.
Signed-off-by: Wenbin Mei <wenbin.mei@mediatek.com>
Reviewed-by: Chaotian Jing <chaotian.jing@mediatek.com>
Link: https://lore.kernel.org/r/20210917124803.22871-4-wenbin.mei@mediatek.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Bug: 234554003
Signed-off-by: Peng Zhou <Peng.Zhou@mediatek.com>
Change-Id: I02670c5e3277b4095a4f3fd89ea6724f8416601d
(cherry picked from commit c4ac38c653)
Use vma->file_ref_count to protect vma->vm_file from destruction during
speculative page fault handling.
Bug: 234527424
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I0ebebcafe5f50444e582ec5835eb6005fa85f5b1
Use vma->file_ref_count to protect vma->vm_file from destruction during
speculative page fault handling.
Bug: 234527424
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: Icdd558532872095869f9106cc7e4b7e07dc46748
Use vma->file_ref_count to protect vma->vm_file from destruction during
speculative page fault handling.
Bug: 234527424
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I4c826fd5ef45576566e1eb8f8f23d17e620e7fc9
In order to prevent destruction of vma->vm_file while it's being used
during speculative page fault handling, introduce an atomic refcounter.
Bug: 234527424
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I0e971156f3e76feb45136bac1582a7eaab8c75df
We've recently added a .data section for the hypervisor, which kmemleak
is eager to parse. This clearly doesn't go well, so add the section to
kmemleak's block list.
Bug: 232768943
Bug: 235903024
Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: I29d81cb1246c590bd5203d560ea369e5f29d59b0
Single memory zone feature will remove ZONE_DMA32 and ZONE_DMA and
cause pgtable PA size larger than 32bit.
Since Mediatek IOMMU hardware support at most 35bit PA in pgtable,
so add a quirk to allow the PA of pgtables support up to bit35.
Signed-off-by: Ning Li <ning.li@mediatek.com>
Link: https://lore.kernel.org/linux-mediatek/20220616120713.12728-2-yf.wang@mediatek.com/
Bug: 235767992
Signed-off-by: Yunfei Wang <yf.wang@mediatek.com>
Change-Id: I5dd226507bfbbbe85cb00aa27d03cd3592740055
Add vendor hook to get signal for vendor-specific tuning.
Conflicts:
drivers/android/vendor_hooks.c
Bug: 184898838
Signed-off-by: Zhuguangqing <zhuguangqing@xiaomi.com>
Change-Id: I83a28b0a6eb413976f4c57f2314d008ad792fa0d
(cherry picked from commit d623f1ff72)
Export is_ashmem_file function which will be used
by the minidump module to get ashmem info.
Bug: 193397560
Change-Id: I5b7816ad4775e5cf2c4f41c28b1c8dacc2c85b7e
Signed-off-by: liuhailong <liuhailong@oppo.com>
Signed-off-by: Liujie Xie <xieliujie@oppo.com>
(cherry picked from commit 7bcfde2601)
