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2021-11-01virtio_ring: make virtqueue_add_indirect_packed prettierXuan Zhuo
Align the arguments of virtqueue_add_indirect_packed() to the open ( to make it look prettier. Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com> Acked-by: Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/20211020112323.67466-2-xuanzhuo@linux.alibaba.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-11-01hwrng: virtio - always add a pending requestLaurent Vivier
If we ensure we have already some data available by enqueuing again the buffer once data are exhausted, we can return what we have without waiting for the device answer. Signed-off-by: Laurent Vivier <lvivier@redhat.com> Link: https://lore.kernel.org/r/20211028101111.128049-5-lvivier@redhat.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-11-01hwrng: virtio - don't waste entropyLaurent Vivier
if we don't use all the entropy available in the buffer, keep it and use it later. Signed-off-by: Laurent Vivier <lvivier@redhat.com> Link: https://lore.kernel.org/r/20211028101111.128049-4-lvivier@redhat.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-11-01hwrng: virtio - don't wait on cleanupLaurent Vivier
When virtio-rng device was dropped by the hwrng core we were forced to wait the buffer to come back from the device to not have remaining ongoing operation that could spoil the buffer. But now, as the buffer is internal to the virtio-rng we can release the waiting loop immediately, the buffer will be retrieve and use when the virtio-rng driver will be selected again. This avoids to hang on an rng_current write command if the virtio-rng device is blocked by a lack of entropy. This allows to select another entropy source if the current one is empty. Signed-off-by: Laurent Vivier <lvivier@redhat.com> Link: https://lore.kernel.org/r/20211028101111.128049-3-lvivier@redhat.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-11-01hwrng: virtio - add an internal bufferLaurent Vivier
hwrng core uses two buffers that can be mixed in the virtio-rng queue. If the buffer is provided with wait=0 it is enqueued in the virtio-rng queue but unused by the caller. On the next call, core provides another buffer but the first one is filled instead and the new one queued. And the caller reads the data from the new one that is not updated, and the data in the first one are lost. To avoid this mix, virtio-rng needs to use its own unique internal buffer at a cost of a data copy to the caller buffer. Signed-off-by: Laurent Vivier <lvivier@redhat.com> Link: https://lore.kernel.org/r/20211028101111.128049-2-lvivier@redhat.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-11-01vdpa/mlx5: Propagate link status from device to vdpa driverEli Cohen
Add code to register to hardware asynchronous events. Use this mechanism to track link status events coming from the device and update the config struct. After doing link status change, call the vdpa callback to notify of the link status change. Signed-off-by: Eli Cohen <elic@nvidia.com> Link: https://lore.kernel.org/r/20210909123635.30884-4-elic@nvidia.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com>
2021-11-01vdpa/mlx5: Rename control VQ workqueue to vdpa wqEli Cohen
A subesequent patch will use the same workqueue for executing other work not related to control VQ. Rename the workqueue and the work queue entry used to convey information to the workqueue. Signed-off-by: Eli Cohen <elic@nvidia.com> Link: https://lore.kernel.org/r/20210909123635.30884-3-elic@nvidia.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com>
2021-11-01vdpa/mlx5: Remove mtu field from vdpa net deviceEli Cohen
No need to save the mtu int the net device struct. We can save it in the config struct which cannot be modified. Moreover, move the initialization to. mlx5_vdpa_set_features() callback is not the right place to put it. Signed-off-by: Eli Cohen <elic@nvidia.com> Link: https://lore.kernel.org/r/20210909123635.30884-2-elic@nvidia.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-11-01eni_vdpa: add vDPA driver for Alibaba ENIWu Zongyong
This patch adds a new vDPA driver for Alibaba ENI(Elastic Network Interface) which is build upon virtio 0.9.5 specification. And this driver is only enabled on X86 host currently. Link: https://lore.kernel.org/r/6a9f32c00609af16bbb2ea32e633b3beb1cbf84b.1635493219.git.wuzongyong@linux.alibaba.com Signed-off-by: Wu Zongyong <wuzongyong@linux.alibaba.com> Link: https://lore.kernel.org/r/20211026083214.3375383-1-arnd@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de> # fix Kconfig typo Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-11-01vdpa: add new attribute VDPA_ATTR_DEV_MIN_VQ_SIZEWu Zongyong
This attribute advertises the min value of virtqueue size. The value is 1 by default. Signed-off-by: Wu Zongyong <wuzongyong@linux.alibaba.com> Link: https://lore.kernel.org/r/2bbc417355c4d22298050b1ba887cecfbde3e85d.1635493219.git.wuzongyong@linux.alibaba.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-11-01virtio_vdpa: setup correct vq size with callbacks get_vq_num_{max,min}Wu Zongyong
For the devices which implement the get_vq_num_min callback, the driver should not negotiate with virtqueue size with the backend vdpa device if the value returned by get_vq_num_min equals to the value returned by get_vq_num_max. This is useful for vdpa devices based on legacy virtio specfication. Signed-off-by: Wu Zongyong <wuzongyong@linux.alibaba.com> Link: https://lore.kernel.org/r/bc0551cec6c3f3dd9424b678b7c22d882aebab3a.1635493219.git.wuzongyong@linux.alibaba.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-11-01vdpa: min vq num of vdpa device cannot be greater than max vq numWu Zongyong
Just failed to probe the vdpa device if the min virtqueue num returned by get_vq_num_min is greater than the max virtqueue num returned by get_vq_num_max. Signed-off-by: Wu Zongyong <wuzongyong@linux.alibaba.com> Acked-by: Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/21199b62cc10b2a9f2cf90eeb63ad080645d881f.1635493219.git.wuzongyong@linux.alibaba.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-11-01vp_vdpa: add vq irq offloading supportWu Zongyong
This patch implements the get_vq_irq() callback for virtio pci devices to allow irq offloading. Signed-off-by: Wu Zongyong <wuzongyong@linux.alibaba.com> Acked-by: Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/bb091e5505db704dd620f8854a7aebc921d2a752.1635493219.git.wuzongyong@linux.alibaba.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-11-01virtio-pci: introduce legacy device moduleWu Zongyong
Split common codes from virtio-pci-legacy so vDPA driver can reuse it later. Signed-off-by: Wu Zongyong <wuzongyong@linux.alibaba.com> Acked-by: Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/71605acde5e97fcb2760a6973e406279fb1bbd33.1635493219.git.wuzongyong@linux.alibaba.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-11-01virtio-blk: add num_request_queues module parameterMax Gurtovoy
Sometimes a user would like to control the amount of request queues to be created for a block device. For example, for limiting the memory footprint of virtio-blk devices. Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Max Gurtovoy <mgurtovoy@nvidia.com> Link: https://lore.kernel.org/r/20210902204622.54354-1-mgurtovoy@nvidia.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-11-01virtio-blk: avoid preallocating big SGL for dataMax Gurtovoy
No need to pre-allocate a big buffer for the IO SGL anymore. If a device has lots of deep queues, preallocation for the sg list can consume substantial amounts of memory. For HW virtio-blk device, nr_hw_queues can be 64 or 128 and each queue's depth might be 128. This means the resulting preallocation for the data SGLs is big. Switch to runtime allocation for SGL for lists longer than 2 entries. This is the approach used by NVMe drivers so it should be reasonable for virtio block as well. Runtime SGL allocation has always been the case for the legacy I/O path so this is nothing new. The preallocated small SGL depends on SG_CHAIN so if the ARCH doesn't support SG_CHAIN, use only runtime allocation for the SGL. Re-organize the setup of the IO request to fit the new sg chain mechanism. No performance degradation was seen (fio libaio engine with 16 jobs and 128 iodepth): IO size IOPs Rand Read (before/after) IOPs Rand Write (before/after) -------- --------------------------------- ---------------------------------- 512B 318K/316K 329K/325K 4KB 323K/321K 353K/349K 16KB 199K/208K 250K/275K 128KB 36K/36.1K 39.2K/41.7K Signed-off-by: Max Gurtovoy <mgurtovoy@nvidia.com> Reviewed-by: Israel Rukshin <israelr@nvidia.com> Link: https://lore.kernel.org/r/20210901131434.31158-1-mgurtovoy@nvidia.com Reviewed-by: Feng Li <lifeng1519@gmail.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Tested-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de> # kconfig fixups Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-11-01virtio_net: clarify tailroom logicMichael S. Tsirkin
Make tailroom math follow same logic as everything else, subtracing values in the order in which things are laid out in the buffer. Tested-by: Corentin Noël <corentin.noel@collabora.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-10-31Merge branches 'apple/dart', 'arm/mediatek', 'arm/renesas', 'arm/smmu', ↵Joerg Roedel
'arm/tegra', 'iommu/fixes', 'x86/amd', 'x86/vt-d' and 'core' into next
2021-10-31Merge tag 'kvmarm-5.16' of ↵Paolo Bonzini
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm64 updates for Linux 5.16 - More progress on the protected VM front, now with the full fixed feature set as well as the limitation of some hypercalls after initialisation. - Cleanup of the RAZ/WI sysreg handling, which was pointlessly complicated - Fixes for the vgic placement in the IPA space, together with a bunch of selftests - More memcg accounting of the memory allocated on behalf of a guest - Timer and vgic selftests - Workarounds for the Apple M1 broken vgic implementation - KConfig cleanups - New kvmarm.mode=none option, for those who really dislike us
2021-10-30Merge tag 'scsi-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Three small fixes, all in drivers, and one sizeable update to the UFS driver to remove the HPB 2.0 feature that has been objected to by Jens and Christoph. Although the UFS patch is large and last minute, it's essentially the least intrusive way of resolving the objections in time for the 5.15 release" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: ufs: ufshpb: Remove HPB2.0 flows scsi: mpt3sas: Fix reference tag handling for WRITE_INSERT scsi: ufs: ufs-exynos: Correct timeout value setting registers scsi: ibmvfc: Fix up duplicate response detection
2021-10-30Merge tag 'clk-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk fix from Stephen Boyd: "One fix for the composite clk that broke when we changed this clk type to use the determine_rate instead of round_rate clk op by default. This caused lots of problems on Rockchip SoCs because they heavily use the composite clk code to model the clk tree" * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk: composite: Also consider .determine_rate for rate + mux composites
2021-10-30scsi: ufs: ufshpb: Remove HPB2.0 flowsAvri Altman
The Host Performance Buffer feature allows UFS read commands to carry the physical media addresses along with the LBAs, thus allowing less internal L2P-table switches in the device. HPB1.0 allowed a single LBA, while HPB2.0 increases this capacity up to 255 blocks. Carrying more than a single record, the read operation is no longer purely of type "read" but a "hybrid" command: Writing the physical address to the device in one operation and reading back the required payload in another. The JEDEC HPB spec defines two commands for this operation: HPB-WRITE-BUFFER (0x2) to write the physical addresses to device, and HPB-READ to read the payload. With the current HPB design the UFS driver has no alternative but to divide the READ request into 2 separate commands: HPB-WRITE-BUFFER and HPB-READ. This causes a great deal of aggravation to the block layer guys who demanded that we completely revert the entire HPB driver regardless of the huge amount of corporate effort already invested in it. As a compromise, remove only the pieces that implement the 2.0 specification. This is done as a matter of urgency for the final 5.15 release. Link: https://lore.kernel.org/r/20211030062301.248-1-avri.altman@wdc.com Tested-by: Avri Altman <avri.altman@wdc.com> Tested-by: Bean Huo <beanhuo@micron.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Bean Huo <beanhuo@micron.com> Co-developed-by: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Avri Altman <avri.altman@wdc.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-30staging: r8188eu: hal: remove goto statement and local variableSaurav Girepunje
Remove the goto statement from FillH2CCmd_88E(). In this function goto can be replace by return statement. As on goto label exit, function only return it is not performing any cleanup. Avoiding goto will improve the function readability. After replacing the goto statement local variable ret is also not needed. So remove the ret local variable. Signed-off-by: Saurav Girepunje <saurav.girepunje@gmail.com> Link: https://lore.kernel.org/r/YXjXsChOpaTThkxT@Sauravs-Air.domain.name Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-10-30staging: rtl8723bs: hal remove the assignment to itselfSaurav Girepunje
Remove the assignment of variable to itself. Assigning the variable to itself not make any difference on value. Signed-off-by: Saurav Girepunje <saurav.girepunje@gmail.com> Link: https://lore.kernel.org/r/YXoq2ViLxPVwAgLq@Sauravs-MacBook-Air.local Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-10-30staging: rtl8723bs: fix unmet dependency on CRYPTO for CRYPTO_LIB_ARC4Julian Braha
When RTL8723BS is selected, and CRYPTO is not selected, Kbuild gives the following warning: WARNING: unmet direct dependencies detected for CRYPTO_LIB_ARC4 Depends on [n]: CRYPTO [=n] Selected by [m]: - RTL8723BS [=m] && STAGING [=y] && WLAN [=y] && MMC [=y] && CFG80211 [=y] && m && MODULES [=y] - RTLLIB_CRYPTO_WEP [=m] && STAGING [=y] && RTLLIB [=m] This is because RTL8723BS selects CRYPTO_LIB_ARC4 without selecting CRYPTO, despite CRYPTO_LIB_ARC4 depending on CRYPTO. This unmet dependency bug was detected by Kismet, a static analysis tool for Kconfig. Please advise if this is not the appropriate solution. Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Julian Braha <julianbraha@gmail.com> Link: https://lore.kernel.org/r/20211029214244.17341-1-julianbraha@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-10-30staging: vchiq_core: get rid of typedefGaston Gonzalez
The typedef BITSET_T is acting as a synonym of u32. However, using the type u32 directly makes the code more readable. Furthermore, typedef should only be used in some cases, [1]. Hence, get rid of it. [1] Documentation/process/coding-style.rst Signed-off-by: Gaston Gonzalez <gascoar@gmail.com> Link: https://lore.kernel.org/r/20211029200012.45986-1-gascoar@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-10-30staging: fieldbus: anybus: reframe comment to avoid warningAjith P V
host.c file comment produce warning with checkpatch as below: WARNING: Possible repeated word: 'interrupt' Reframe the comment into bullet points or steps avoid this warning. Signed-off-by: Ajith P V <ajithpv.linux@gmail.com> Link: https://lore.kernel.org/r/20211029132700.8552-1-ajithpv.linux@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-10-30staging: r8188eu: fix missing unlock in rtw_resume()Yang Yingliang
Add the missing unlock before return from rtw_resume(). Fixes: 2b42bd58b321 ("staging: r8188eu: introduce new os_dep dir for RTL8188eu driver") Reported-by: Hulk Robot <hulkci@huawei.com> Acked-by: Fabio M. De Francesco <fmdefrancesco@gmail.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Link: https://lore.kernel.org/r/20211028094038.2877341-1-yangyingliang@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-10-30serial: cpm_uart: Protect udbg definitions by CONFIG_SERIAL_CPM_CONSOLEGeert Uytterhoeven
If CONFIG_CONSOLE_POLL=y, and CONFIG_SERIAL_CPM=m (hence CONFIG_SERIAL_CPM_CONSOLE=n): drivers/tty/serial/cpm_uart/cpm_uart_core.c:1109:12: warning: ‘udbg_cpm_getc’ defined but not used [-Wunused-function] 1109 | static int udbg_cpm_getc(void) | ^~~~~~~~~~~~~ drivers/tty/serial/cpm_uart/cpm_uart_core.c:1095:13: warning: ‘udbg_cpm_putc’ defined but not used [-Wunused-function] 1095 | static void udbg_cpm_putc(char c) | ^~~~~~~~~~~~~ Fix this by making the udbg definitions depend on CONFIG_SERIAL_CPM_CONSOLE, in addition to CONFIG_CONSOLE_POLL. Fixes: a60526097f42eb98 ("tty: serial: cpm_uart: Add udbg support for enabling xmon") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Link: https://lore.kernel.org/r/20211027075326.3270785-1-geert@linux-m68k.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-10-30usb: gadget: Mark USB_FSL_QE broken on 64-bitGeert Uytterhoeven
On 64-bit: drivers/usb/gadget/udc/fsl_qe_udc.c: In function ‘qe_ep0_rx’: drivers/usb/gadget/udc/fsl_qe_udc.c:842:13: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast] 842 | vaddr = (u32)phys_to_virt(in_be32(&bd->buf)); | ^ In file included from drivers/usb/gadget/udc/fsl_qe_udc.c:41: drivers/usb/gadget/udc/fsl_qe_udc.c:843:28: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast] 843 | frame_set_data(pframe, (u8 *)vaddr); | ^ The driver assumes physical and virtual addresses are 32-bit, hence it cannot work on 64-bit platforms. Acked-by: Li Yang <leoyang.li@nxp.com> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Link: https://lore.kernel.org/r/20211027080849.3276289-1-geert@linux-m68k.org Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-10-30usb: gadget: f_mass_storage: Disable eps during disconnectWesley Cheng
When receiving a disconnect event from the UDC, the mass storage function driver currently runs the handle_exception() routine asynchronously. For UDCs that support runtime PM, there is a possibility the UDC is already suspended by the time the do_set_interface() is executed. This can lead to HW register access while the UDC is already suspended. Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com> Link: https://lore.kernel.org/r/1635365407-31337-3-git-send-email-quic_wcheng@quicinc.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-10-30usb: gadget: udc: core: Revise comments for USB ep enable/disableWesley Cheng
The usb_ep_disable() and usb_ep_enable() routines are being widely used in atomic/interrupt context by function drivers. Hence, the statement about it being able to only run in process context may not be true. Add an explicit comment mentioning that it can be used in atomic context. Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com> Link: https://lore.kernel.org/r/1635365407-31337-2-git-send-email-quic_wcheng@quicinc.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-10-30comedi: dt9812: fix DMA buffers on stackJohan Hovold
USB transfer buffers are typically mapped for DMA and must not be allocated on the stack or transfers will fail. Allocate proper transfer buffers in the various command helpers and return an error on short transfers instead of acting on random stack data. Note that this also fixes a stack info leak on systems where DMA is not used as 32 bytes are always sent to the device regardless of how short the command is. Fixes: 63274cd7d38a ("Staging: comedi: add usb dt9812 driver") Cc: stable@vger.kernel.org # 2.6.29 Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20211027093529.30896-3-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-10-30comedi: ni_usb6501: fix NULL-deref in command pathsJohan Hovold
The driver uses endpoint-sized USB transfer buffers but had no sanity checks on the sizes. This can lead to zero-size-pointer dereferences or overflowed transfer buffers in ni6501_port_command() and ni6501_counter_command() if a (malicious) device has smaller max-packet sizes than expected (or when doing descriptor fuzz testing). Add the missing sanity checks to probe(). Fixes: a03bb00e50ab ("staging: comedi: add NI USB-6501 support") Cc: stable@vger.kernel.org # 3.18 Cc: Luca Ellero <luca.ellero@brickedbrain.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20211027093529.30896-2-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-10-30Merge tag 'coresight-next-v5.16.v3' of ↵Greg Kroah-Hartman
gitolite.kernel.org:pub/scm/linux/kernel/git/coresight/linux into char-misc-next Mathieu writes: Coresight changes for v5.16 - A new option to make coresight cpu-debug capabilities available as early as possible in the kernel boot process. - Make trace sessions more enduring by coping with scenarios where events are scheduled on CPUs that can't reach the selected sink. - A set of improvement to make the TMC-ETR driver more efficient. - Enhancements to the TRBE driver to correct several errata. - An enhancement to make the AXI burts size configurable for TMC devices that can't work with the default value. - A fix in the CTI module to use the correct device when calling pm_runtime_put() - The addition of the Kryo-5xx device to the list of support ETMs. Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> * tag 'coresight-next-v5.16.v3' of gitolite.kernel.org:pub/scm/linux/kernel/git/coresight/linux: (39 commits) arm64: errata: Enable TRBE workaround for write to out-of-range address arm64: errata: Enable workaround for TRBE overwrite in FILL mode coresight: trbe: Work around write to out of range coresight: trbe: Make sure we have enough space coresight: trbe: Add a helper to determine the minimum buffer size coresight: trbe: Workaround TRBE errata overwrite in FILL mode coresight: trbe: Add infrastructure for Errata handling coresight: trbe: Allow driver to choose a different alignment coresight: trbe: Decouple buffer base from the hardware base coresight: trbe: Add a helper to pad a given buffer area coresight: trbe: Add a helper to calculate the trace generated coresight: trbe: Defer the probe on offline CPUs coresight: trbe: Fix incorrect access of the sink specific data coresight: etm4x: Add ETM PID for Kryo-5XX coresight: trbe: Prohibit trace before disabling TRBE coresight: trbe: End the AUX handle on truncation coresight: trbe: Do not truncate buffer on IRQ coresight: trbe: Fix handling of spurious interrupts coresight: trbe: irq handler: Do not disable TRBE if no action is needed coresight: trbe: Unify the enabling sequence ...
2021-10-29Merge branch '1GbE' of ↵Jakub Kicinski
git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue Tony Nguyen says: ==================== 1GbE Intel Wired LAN Driver Updates 2021-10-29 This series contains updates to igc driver only. Sasha removes an unnecessary media type check, adds a new device ID, and changes a device reset to a port reset command. ==================== Link: https://lore.kernel.org/r/20211029174101.2970935-1-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-10-29bnxt_en: Remove not used other ULP defineLeon Romanovsky
There is only one bnxt ULP in the upstream kernel and definition for other ULP can be safely removed. Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Reviewed-by: Michael Chan <michael.chan@broadcom.com> Link: https://lore.kernel.org/r/3a8ea720b28ec4574648012d2a00208f1144eff5.1635527693.git.leonro@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-10-29Merge branch '40GbE' of ↵Jakub Kicinski
git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue Tony Nguyen says: ==================== 40GbE Intel Wired LAN Driver Updates 2021-10-29 This series contains updates to i40e, ice, igb, and ixgbevf drivers. Yang Li simplifies return statements of bool values for i40e and ice. Jan Kundrát corrects problems with I2C bit-banging for igb. Colin Ian King removes unneeded variable initialization for ixgbevf. ==================== Link: https://lore.kernel.org/r/20211029164641.2714265-1-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-10-29netdevsim: remove max_vfs dentryJakub Kicinski
Commit d395381909a3 ("netdevsim: Add max_vfs to bus_dev") added this file and saved the dentry for no apparent reason. Link: https://lore.kernel.org/r/20211028211753.22612-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-10-29mailbox: imx: support i.MX8ULP S4 MUPeng Fan
Like i.MX8 SCU, i.MX8ULP S4 also has vendor specific protocol. - bind SCU/S4 MU part to share one tx/rx/init API to make code simple. - S4 msg max size is very large, so alloc the space at driver probe, not use local on stack variable. - S4 MU has 8 TR and 4 RR which is different with i.MX8 MU, so adapt code to reflect this. Tested on i.MX8MP, i.MX8ULP Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2021-10-29mailbox: pcc: Move bulk of PCCT parsing into pcc_mbox_probeSudeep Holla
Move the PCCT subspace parsing and allocation into pcc_mbox_probe so that we can get rid of global PCC channel and mailbox controller data. It also helps to make use of devm_* APIs for all the allocations. Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2021-10-29mailbox: pcc: Add support for PCCT extended PCC subspaces(type 3/4)Sudeep Holla
With all the plumbing in place to avoid accessing PCCT type and other fields directly from the PCCT table all the time, let us now add the support for extended PCC subspaces(type 3 and 4). Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2021-10-29mailbox: pcc: Drop handling invalid bit-width in {read,write}_registerSudeep Holla
pcc_chan_reg_init now checks if the register bit width is within the list [8, 16, 32, 64] and flags error if that is not the case. Therefore there is no need to handling invalid bit-width in both read_register and write_register. We can drop that along with the return values for these 2 functions. Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2021-10-29mailbox: pcc: Avoid accessing PCCT table in pcc_send_data and pcc_mbox_irqSudeep Holla
Now that the con_priv is availvale solely for PCC mailbox controller driver, let us use the same to save the channel specific information in it so that we can it whenever required instead of parsing the PCCT table entries every time in both pcc_send_data and pcc_mbox_irq. We can now use the newly introduces PCC register bundle to simplify both saving of channel specific information and accessing them without repeated checks for the subspace type. Reviewed-by: Cristian Marussi <cristian.marussi@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2021-10-29mailbox: pcc: Add PCC register bundle and associated accessor functionsSudeep Holla
Extended PCC subspaces introduces more registers into the PCCT. In order to consolidate access to these registers and to keep all the details contained in one place, let us introduce PCC register bundle that holds the ACPI Generic Address Structure as well as the virtual address for the same if it is mapped in the OS. It also contains the various masks used to access the register and the associated read, write and read-modify-write accessors. We can also clean up the initialisations by having a helper function for the same. Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2021-10-29mailbox: pcc: Rename doorbell ack to platform interrupt ack registerSudeep Holla
The specification refers this register and associated bitmask as platform interrupt acknowledge register. Let us rename it so that it is easier to map and understand. Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2021-10-29mailbox: pcc: Use PCC mailbox channel pointer instead of standardSudeep Holla
Now that we have all the shared memory region information populated in the pcc_mbox_chan, let us propagate the pointer to the same as the return value to pcc_mbox_request channel. This eliminates the need for the individual users of PCC mailbox to parse the PCCT subspace entries and fetch the shmem information. This also eliminates the need for PCC mailbox controller to set con_priv to PCCT subspace entries. This is required as con_priv is private to the controller driver to attach private data associated with the channel and not meant to be used by the mailbox client/users. Let us convert all the users of pcc_mbox_{request,free}_channel to use new interface. Cc: Jean Delvare <jdelvare@suse.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Acked-by: Wolfram Sang <wsa@kernel.org> Acked-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2021-10-29mailbox: pcc: Add pcc_mbox_chan structure to hold shared memory region infoSudeep Holla
Currently PCC mailbox controller sets con_priv in each channel to hold the pointer to pcct subspace entry it corresponds to. The mailbox user will then fetch this pointer from the channel descriptor they get when they request for the channel. Using that pointer they then parse the pcct entry again to fetch all the information about shared memory region. In order to remove individual users of PCC mailbox parsing the PCCT subspace entries to fetch same information, let us consolidate the same in pcc mailbox controller by parsing all the shared memory region information into a structure that can also hold the mbox_chan pointer it represent. This can then be used as main PCC mailbox channel pointer that we can return as part of pcc_mbox_request_channel instead of standard mailbox channel pointer. Reviewed-by: Cristian Marussi <cristian.marussi@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2021-10-29mailbox: pcc: Consolidate subspace doorbell register parsingSudeep Holla
Extended PCC subspaces(Type 3 and 4) differ from generic(Type 0) and HW-Reduced Communication(Type 1 and 2) subspace structures. However some fields share same offsets and same type of structure can be use to extract the fields. In order to simplify that, let us move all the doorbell register parsing into pcc_parse_subspace_db_reg and consolidate there. It will be easier to extend it if required within the same. Reviewed-by: Cristian Marussi <cristian.marussi@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2021-10-29mailbox: pcc: Consolidate subspace interrupt information parsingSudeep Holla
Extended PCC subspaces(Type 3 and 4) differ from generic(Type 0) and HW-Reduced Communication(Type 1 and 2) subspace structures. However some fields share same offsets and same type of structure can be use to extract the fields. In order to simplify that, let us move all the IRQ related information parsing into pcc_parse_subspace_irq and consolidate there. It will be easier to extend it if required within the same. Reviewed-by: Cristian Marussi <cristian.marussi@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
generated by cgit (git 2.34.1) at 2025-09-13 20:18:05 +0000