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2023-12-22lib/firmware_table: tables: Add CDAT table parsing supportDave Jiang
The CDAT table is very similar to ACPI tables when it comes to sub-table and entry structures. The helper functions can be also used to parse the CDAT table. Add support to the helper functions to deal with an external CDAT table, and also handle the endieness since CDAT can be processed by a BE host. Export a function cdat_table_parse() for CXL driver to parse a CDAT table. In order to minimize ACPICA code changes, __force is being utilized to deal with the case of a big endian (BE) host parsing a CDAT. All CDAT data structure variables are being force casted to __leX as appropriate. Cc: Rafael J. Wysocki <rafael@kernel.org> Cc: Len Brown <lenb@kernel.org> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Dave Jiang <dave.jiang@intel.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://lore.kernel.org/r/170319615131.2212653.10932785667981494238.stgit@djiang5-mobl3 Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2023-12-22tcp: Remove dead code and fields for bhash2.Kuniyuki Iwashima
Now all sockets including TIME_WAIT are linked to bhash2 using sock_common.skc_bind_node. We no longer use inet_bind2_bucket.deathrow, sock.sk_bind2_node, and inet_timewait_sock.tw_bind2_node. Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-12-22tcp: Link sk and twsk to tb2->owners using skc_bind_node.Kuniyuki Iwashima
Now we can use sk_bind_node/tw_bind_node for bhash2, which means we need not link TIME_WAIT sockets separately. The dead code and sk_bind2_node will be removed in the next patch. Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-12-22tcp: Unlink sk from bhash.Kuniyuki Iwashima
Now we do not use tb->owners and can unlink sockets from bhash. sk_bind_node/tw_bind_node are available for bhash2 and will be used in the following patch. Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-12-22tcp: Link bhash2 to bhash.Kuniyuki Iwashima
bhash2 added a new member sk_bind2_node in struct sock to link sockets to bhash2 in addition to bhash. bhash is still needed to search conflicting sockets efficiently from a port for the wildcard address. However, bhash itself need not have sockets. If we link each bhash2 bucket to the corresponding bhash bucket, we can iterate the same set of the sockets from bhash2 via bhash. This patch links bhash2 to bhash only, and the actual use will be in the later patches. Finally, we will remove sk_bind2_node. Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-12-22tcp: Save address type in inet_bind2_bucket.Kuniyuki Iwashima
inet_bind2_bucket_addr_match() and inet_bind2_bucket_match_addr_any() are called for each bhash2 bucket to check conflicts. Thus, we call ipv6_addr_any() and ipv6_addr_v4mapped() over and over during bind(). Let's avoid calling them by saving the address type in inet_bind2_bucket. Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-12-22tcp: Save v4 address as v4-mapped-v6 in inet_bind2_bucket.v6_rcv_saddr.Kuniyuki Iwashima
In bhash2, IPv4/IPv6 addresses are saved in two union members, which complicate address checks in inet_bind2_bucket_addr_match() and inet_bind2_bucket_match_addr_any() considering uninitialised memory and v4-mapped-v6 conflicts. Let's simplify that by saving IPv4 address as v4-mapped-v6 address and defining tb2.rcv_saddr as tb2.v6_rcv_saddr.s6_addr32[3]. Then, we can compare v6 address as is, and after checking v4-mapped-v6, we can compare v4 address easily. Also, we can remove tb2->family. Note these functions will be further refactored in the next patch. Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-12-22Bluetooth: Fix bogus check for re-auth no supported with non-sspLuiz Augusto von Dentz
This reverts 19f8def031bfa50c579149b200bfeeb919727b27 "Bluetooth: Fix auth_complete_evt for legacy units" which seems to be working around a bug on a broken controller rather then any limitation imposed by the Bluetooth spec, in fact if there ws not possible to re-auth the command shall fail not succeed. Fixes: 19f8def031bf ("Bluetooth: Fix auth_complete_evt for legacy units") Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2023-12-22Bluetooth: hci_core: Remove le_restart_scan workLuiz Augusto von Dentz
This removes le_restart_scan work and instead just disables controller duplicate filtering when discovery result_filtering is enabled and HCI_QUIRK_STRICT_DUPLICATE_FILTER is set. Link: https://github.com/bluez/bluez/issues/573 Link: https://github.com/bluez/bluez/issues/572 Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2023-12-22Bluetooth: ISO: Reassociate a socket with an active BISIulia Tanasescu
For ISO Broadcast, all BISes from a BIG have the same lifespan - they cannot be created or terminated independently from each other. This links together all BIS hcons that are part of the same BIG, so all hcons are kept alive as long as the BIG is active. If multiple BIS sockets are opened for a BIG handle, and only part of them are closed at some point, the associated hcons will be marked as open. If new sockets will later be opened for the same BIG, they will be reassociated with the open BIS hcons. All BIS hcons will be cleaned up and the BIG will be terminated when the last BIS socket is closed from userspace. Signed-off-by: Iulia Tanasescu <iulia.tanasescu@nxp.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2023-12-22Merge tag '9p-for-6.7-rc7' of https://github.com/martinetd/linuxLinus Torvalds
Pull 9p fixes from Dominique Martinet: "Two small fixes scheduled for stable trees: A tracepoint fix that's been reading past the end of messages forever, but semi-recently also went over the end of the buffer. And a potential incorrectly freeing garbage in pdu parsing error path" * tag '9p-for-6.7-rc7' of https://github.com/martinetd/linux: net: 9p: avoid freeing uninit memory in p9pdu_vreadf 9p: prevent read overrun in protocol dump tracepoint
2023-12-22block: skip start/end time stamping for passthrough IOKundan Kumar
commit 41fa722239b4 ("blk-mq: do not include passthrough requests in I/O accounting")' disables I/O accounting for passthrough requests. Since tools like 'iostat' do not show anything useful for passthrough I/O, it's wasteful to do start/end time-stamping. So do away with that. Avoiding the time-stamping improves the I/O performance by ~7% Signed-off-by: Kundan Kumar <kundan.kumar@samsung.com> Signed-off-by: Kanchan Joshi <joshi.k@samsung.com> Link: https://lore.kernel.org/r/20231222101707.6921-1-kundan.kumar@samsung.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-12-22Merge branch '1GbE' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue Tony Nguyen says: ==================== intel: use bitfield operations Jesse Brandeburg says: After repeatedly getting review comments on new patches, and sporadic patches to fix parts of our drivers, we should just convert the Intel code to use FIELD_PREP() and FIELD_GET(). It's then "common" in the code and hopefully future change-sets will see the context and do-the-right-thing. This conversion was done with a coccinelle script which is mentioned in the commit messages. Generally there were only a couple conversions that were "undone" after the automatic changes because they tried to convert a non-contiguous mask. Patch 1 is required at the beginning of this series to fix a "forever" issue in the e1000e driver that fails the compilation test after conversion because the shift / mask was out of range. The second patch just adds all the new #includes in one go. The patch titled: "ice: fix pre-shifted bit usage" is needed to allow the use of the FIELD_* macros and fix up the unexpected "shifts included" defines found while creating this series. The rest are the conversion to use FIELD_PREP()/FIELD_GET(), and the occasional leXX_{get,set,encode}_bits() call, as suggested by Alex. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2023-12-22Merge tag 'nand/for-6.8' into mtd/nextMiquel Raynal
* Raw NAND The most meaningful change being the conversion of the brcmnand driver to the ->exec_op() API, this series brought additional changes to the core in order to help controller drivers to handle themselves the WP pin during destructive operations when relevant. As always, there is as well a whole bunch of miscellaneous W=1 fixes, together with a few runtime fixes (double free, timeout value, OOB layout, missing register initialization) and the usual load of remove callbacks turned into void (which led to switch the txx9ndfmc driver to use module_platform_driver()).
2023-12-22Merge tag 'qcom-arm64-for-6.8' of ↵Arnd Bergmann
https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into soc/dt Qualcomm ARM64 updates for v6.8 Support is added for the new Snapdragon 8 Gen 3 mobile platform, with support for the MTP and QRD development devices, the new Snapdragon X Elite compute platform with QCP and CRD development/references devices, the QCS6590/QCM6490 platform with support for the IDP development device and the Robotics RB3gen2 board, the Huawei Honor 5X/GR5 handset built on MSM8939, and Xiaomi Pad 6 on SM8250. On IPQ5018 and IPQ6018 platform support for CPUfreq, USB, and one additional QUP SPI controller is added. CPU OPP tables are selectively enabled based on fuses, for both IPQ5332 and IPQ6018. IPQ6018 gains description of a few more SPI and UART nodes. Common elements of the IPQ9574 RDP boards are refactored into a common include file. IPQ9574 also gains description of its LEDs and WPS busttons. MSM8916 finally gets the DSP-based audio described, and this is enabled for a variety of boards. Acer Iconia Talk S and Loncheer L8910 gains notification LED, battery and charger support is added to Loncheer L8150, and GPU is enabled for Samsung Galaxy Tab A. Similariy DSP-based audio is added on MSM8939, the BAM-DMUX support is enabled as well. The Longcheer L9100 gains RGB notification LED support, and the wireless subsystem is enabled. Missing SPI controllers are described on MSM8953. On MSM8996 the MPM is enabled, to allow using wakeup interrupts. Interconnect providers, MPM and display are added to QCM2290. UFS, remoteprocs and WiFi is enabled for Fairphone FP5. On Fairphone FP3 audio, WiFi and Bluetooth are enabled. On the Robotics RB1, HDMI and the CAN bus controller are added. On Robotics RB2 Bluetooth, the modem remoteproc and WiFi are enabled. Bluetooth is enabled on the Robotics RB5. On SA8775P tsens and thermal is added, as well as the random number generator. Sound and RTC support is added for the Acer Aspire 1. On SC7280 DeviceTree is refactored, in order to allow non-Chrome devices to inherit the base dtsi. Support for UFS, crypto, TrustZone based remoteprocs, the Camera Control Interface (CCI) and random number generator support are added. Additionally a variety of smaller fixes are introduced. A variety of fixes are introduced for SC8180X, in particular missing power-domains and interconnects. On SC8280XP the camera clock controller is added, and a number of smaller fixes are introduced. The display subsystem in SDM670 is described. On SDX75 interconnect providers are added, as is USB3 and the related PHY, which is then enabled on the IDP device. On SM6115 interconnect providers are added and existing clients are wired up. A UART controller is added as well. The MPM is added, to provide wakeup interrutps, on SM6375. The modem subsystem, and WiFi are enabled on Sony Xperia 10 IV, a few regulator supplies are corrected. On SM8150 the DisplayPort controller is added, for USB Type-C output, which together with the addition of HDMI is described on the HDK board. GPU and random number generator support are added to SM8450, and enabled on the HDK board. On SM8550 GPU, IPA, random number generator, missing SoundWire ports are added, and enabled on both MTP and QRD devices. Additionally a large number of smaller functional and DeviceTree binding validation issues are corrected across a variety of platforms. * tag 'qcom-arm64-for-6.8' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: (288 commits) arm64: dts: qcom: sc8180x-primus: Allow UFS regulators load/mode setting arm64: dts: qcom: sc8180x: Describe the GIC redistributor arm64: dts: qcom: sc8180x: Add interconnects to UFS arm64: dts: qcom: sc8180x: Add missing MDP clocks arm64: dts: qcom: sc8180x: Add UFS GDSC arm64: dts: qcom: sc7280*: move MPSS and WPSS memory to dtsi arm64: dts: qcom: sc7280: Rename reserved-memory nodes arm64: dts: qcom: sc7280: Remove unused second MPSS reg arm64: dts: qcom: sdm670: add display subsystem arm64: dts: qcom: sm8150-hdk: enable DisplayPort and USB-C altmode arm64: dts: qcom: sm8150: add USB-C ports to the OTG USB host arm64: dts: qcom: sm8150: add USB-C ports to the USB+DP QMP PHY arm64: dts: qcom: sm8150: add DisplayPort controller arm64: dts: qcom: sm8150-hdk: fix SS USB regulators arm64: dts: qcom: sm8150-hdk: enable HDMI output arm64: dts: qcom: sm8150: make dispcc cast minimal vote on MMCX arm64: dts: qcom: sm8650: add fastrpc-compute-cb nodes arm64: dts: qcom: sm8550-qrd: add PM8010 regulators arm64: dts: qcom: sm8550-mtp: Add pm8010 regulators arm64: dts: qcom: qcm2290: Hook up MPM ... Link: https://lore.kernel.org/r/20231219145402.874161-1-andersson@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2023-12-22mtd: rawnand: Prevent crossing LUN boundaries during sequential readsMiquel Raynal
The ONFI specification states that devices do not need to support sequential reads across LUN boundaries. In order to prevent such event from happening and possibly failing, let's introduce the concept of "pause" in the sequential read to handle these cases. The first/last pages remain the same but any time we cross a LUN boundary we will end and restart (if relevant) the sequential read operation. Cc: stable@vger.kernel.org Fixes: 003fe4b9545b ("mtd: rawnand: Support for sequential cache reads") Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Tested-by: Martin Hundebøll <martin@geanix.com> Link: https://lore.kernel.org/linux-mtd/20231215123208.516590-2-miquel.raynal@bootlin.com
2023-12-22Merge tag 'reset-for-v6.8' of git://git.pengutronix.de/pza/linux into ↵Arnd Bergmann
soc/drivers Reset controller updates for v6.8 Make use of devm_platform_get_and_ioremap_resource() and device_get_match_data() in several drivers, support the Amlogic C3 reset controller, and improve various device tree binding documents. * tag 'reset-for-v6.8' of git://git.pengutronix.de/pza/linux: dt-bindings: reset: hisilicon,hi3660-reset: Drop providers and consumers from example dt-bindings: reset: imx-src: Simplify compatible schema and drop unneeded quotes dt-bindings: reset: qcom: drop unneeded quotes dt-bindings: reset: renesas,rzg2l-usbphy-ctrl: Document RZ/Five SoC reset: Use device_get_match_data() reset: reset-meson: add support for Amlogic C3 SoC Reset Controller dt-bindings: reset: Add compatible and DT bindings for Amlogic C3 Reset Controller reset: uniphier-glue: Use devm_platform_get_and_ioremap_resource() reset: sunplus: Use devm_platform_get_and_ioremap_resource() reset: simple: Convert to devm_platform_get_and_ioremap_resource() reset: qcom: Convert to devm_platform_ioremap_resource() reset: qcom-aoss: Convert to devm_platform_ioremap_resource() reset: meson-audio-arb: Convert to devm_platform_ioremap_resource() reset: brcmstb: Use devm_platform_get_and_ioremap_resource() Link: https://lore.kernel.org/r/20231213153313.278867-1-p.zabel@pengutronix.de Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2023-12-22Merge tag 'memory-controller-drv-6.8' of ↵Arnd Bergmann
https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl into soc/drivers Memory controller drivers for v6.8 Few improvements for Tegra Memory Controller: Override the SID programming in the device, if firmware or bootloader left it in bypass mode, e.g. after resuming from suspend. Skip prorgamming the SID, if given Memory Controller client does not support it. * tag 'memory-controller-drv-6.8' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl: memory: tegra: Protect SID override call under CONFIG_IOMMU_API memory: tegra: Skip SID programming if SID registers aren't set memory: tegra: Add SID override programming for MC clients Link: https://lore.kernel.org/r/20231213061523.4803-1-krzysztof.kozlowski@linaro.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2023-12-22Merge tag 'riscv-soc-drivers-for-v6.8' of ↵Arnd Bergmann
https://git.kernel.org/pub/scm/linux/kernel/git/conor/linux into soc/drivers RISC-V SoC drivers for v6.8 There's only one set of changes here, the addition of "Auto Update" support for PolarFire SoC. Auto Update is one of the ways that the FPGA bitstream can be updated, and the only one suitable for use from Linux as it does not immediately initiate a reboot when started. The driver was not accepted in the FPGA manager subsystem as the update only occurs after a reboot and makes no use of the FPGA manager framework. Signed-off-by: Conor Dooley <conor.dooley@microchip.com> * tag 'riscv-soc-drivers-for-v6.8' of https://git.kernel.org/pub/scm/linux/kernel/git/conor/linux: MAINTAINERS: add auto-update driver to mpfs entry firmware: microchip: Replace of_device.h with explicit include firmware: microchip: add PolarFire SoC Auto Update support soc: microchip: mpfs: add auto-update subdev to system controller soc: microchip: mpfs: print service status in warning message soc: microchip: mpfs: enable access to the system controller's flash dt-bindings: soc: microchip: add a property for system controller flash firmware_loader: Expand Firmware upload error codes with firmware invalid error Link: https://lore.kernel.org/r/20231221-droop-unblock-81e4fe14acee@spud Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2023-12-22Merge tag 'samsung-drivers-6.8' of ↵Arnd Bergmann
https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into soc/drivers Samsung SoC driver changes for v6.8 1. Add support for Google GS101 SoC to different drivers: clock controller, serial and watchdog. The clock driver changes depend on few bindings headers, which I put in a topic branch with the bindings refactoring and GS101 support, therefore this this pull request includes that bindings topic branch. The rest of the bindings topic branch is not necessary here, however keeping everything together makes it easier to share between branches. The bindings topic branch is mostly refactoring all the compatibles to add SoC-specific compatible followed by fallback. 2. Exynos ChipID: recognize ExynosAutov920. * tag 'samsung-drivers-6.8' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: (40 commits) dt-bindings: clock: google,gs101: rename CMU_TOP gate defines watchdog: s3c2410_wdt: Add support for Google gs101 SoC watchdog: s3c2410_wdt: Update QUIRK macros to use BIT macro watchdog: s3c2410_wdt: Add support for WTCON register DBGACK_MASK bit tty: serial: samsung: Add gs101 compatible and common fifoszdt_serial_drv_data clk: samsung: clk-gs101: Add cmu_top, cmu_misc and cmu_apm support clk: samsung: clk-pll: Add support for pll_{0516,0517,518} dt-bindings: clock: google,gs101: fix incorrect numbering and DGB suffix dt-bindings: soc: samsung: usi: add google,gs101-usi compatible dt-bindings: serial: samsung: Make samsung,uart-fifosize a required property dt-bindings: serial: samsung: Add google-gs101-uart compatible dt-bindings: watchdog: Document Google gs101 watchdog bindings dt-bindings: samsung: exynos-sysreg: combine exynosautov920 with other enum dt-bindings: soc: google: exynos-sysreg: add dedicated SYSREG compatibles to GS101 dt-bindings: clock: Add Google gs101 clock management unit bindings dt-bindings: soc: samsung: exynos-pmu: Add gs101 compatible dt-bindings: watchdog: samsung: add specific compatible for Tesla FSD dt-bindings: samsung: exynos-pmu: add specific compatible for Tesla FSD dt-bindings: serial: samsung: add specific compatible for Tesla FSD dt-bindings: pwm: samsung: add specific compatible for Tesla FSD ... Link: https://lore.kernel.org/r/20231220084722.22149-1-krzysztof.kozlowski@linaro.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2023-12-22Merge tag 'qcom-drivers-for-6.8' of ↵Arnd Bergmann
https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into soc/drivers Qualcomm driver updates for v6.8 Support for SM8650 and X1E is added to the LLCC driver, the LLCC_TRP_ATTR2_CFGn register stride is corrected, and a bug where for each iteration looping over slices previous settings for dis_cap_alloc and retain_on_pc are overwritten. A quirk is introduced in UCSI, for implementations that does not handle UCSI_GET_PDOS for non-PD partners. With this, USCI support is enabled by default in pmic_glink. It is later reverted for SC8280XP due reported errors. A few memory leaks in error paths of qseecom are taken care of. A small driver to expose the ADSP PDCharger ULOG debug log is introduced, to aid debugging issues with pmic_glink. The identiy of SM8650, PM8937 and a few DSPs are added to the Qualcomm socinfo driver. The Qualcomm sleep stats driver is extended to allow getting detailed statistics about usage of various DDR states. Unfortunately this ABI does not seem to be stable across platforms, so this addition is dropped again while the reported problems are investigated further. Andy is moved from MAINTAINERS to CREDITS. Thank you, Andy. * tag 'qcom-drivers-for-6.8' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: (34 commits) soc: qcom: llcc: Fix LLCC_TRP_ATTR2_CFGn offset firmware: qcom: qseecom: fix memory leaks in error paths soc: qcom: llcc: Fix typo in kernel-doc dt-bindings: soc: qcom,aoss-qmp: document the X1E80100 Always-On Subsystem side channel MAINTAINERS: qcom: move Andy Gross to credits soc: qcom: pmic_glink: drop stray semicolons soc: qcom: pmic_glink: disable UCSI on sc8280xp soc: qcom: llcc: Fix dis_cap_alloc and retain_on_pc configuration soc: qcom: pmic_pdcharger_ulog: Fix hypothetical ulog request message endianess soc: qcom: pmic_pdcharger_ulog: Move TRACE_SYSTEM out of #if protection soc: qcom: pmic_pdcharger_ulog: Search current directory for headers soc: qcom: socinfo: Add few DSPs to get their image details soc: qcom: llcc: Add missing description for members in slice config Revert "soc: qcom: stats: Add DDR sleep stats" dt-bindings: firmware: qcom,scm: Allow interconnect for everyone dt-bindings: firmware: qcom,scm: document SCM on X1E80100 SoCs soc: qcom: socinfo: Add PM8937 Power IC soc: qcom: llcc: Add configuration data for X1E80100 dt-bindings: cache: qcom,llcc: Add X1E80100 compatible soc: qcom: pmic_glink_altmode: fix port sanity check ... Link: https://lore.kernel.org/r/20231219041855.732578-1-andersson@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2023-12-22Merge tag 'mtk-soc-for-v6.8' of ↵Arnd Bergmann
https://git.kernel.org/pub/scm/linux/kernel/git/mediatek/linux into soc/drivers MediaTek soc driver updates for v6.8 This adds a refactoring of the MediaTek Smart Voltage Scaling (SVS) driver and the addition of support for MT8186 and MT8195 in it, and adds support for the MT8188 VDOSYS and resets in the MMSYS driver. * tag 'mtk-soc-for-v6.8' of https://git.kernel.org/pub/scm/linux/kernel/git/mediatek/linux: (24 commits) soc: mediatek: mtk-svs: Constify runtime-immutable members of svs_bank soc: mediatek: mtk-svs: Use ULONG_MAX to compare floor frequency soc: mediatek: mtk-svs: Check if SVS mode is available in the beginning soc: mediatek: mtk-svs: Cleanup of svs_probe() function soc: mediatek: mtk-svs: Compress of_device_id entries soc: mediatek: mtk-svs: Remove redundant print in svs_get_efuse_data soc: mediatek: mtk-svs: Commonize MT8192 probe function for MT8186 soc: mediatek: mtk-svs: Drop supplementary svs per-bank pointer soc: mediatek: mtk-svs: Commonize efuse parse function for most SoCs soc: mediatek: mtk-svs: Move t-calibration-data retrieval to svs_probe() soc: mediatek: mtk-svs: Add SVS-Thermal coefficient to SoC platform data soc: mediatek: mtk-svs: Add a map to retrieve fused values soc: mediatek: mtk-svs: Change the thermal sensor device name soc: mediatek: mtk-svs: Reduce memory footprint of struct svs_bank soc: mediatek: mtk-svs: Build bank name string dynamically soc: mediatek: mtk-svs: Convert sw_id and type to enumerations soc: mediatek: mtk-svs: Subtract offset from regs_v2 to avoid conflict soc: mediatek: Add MT8188 VDOSYS reset bit map soc: mediatek: Support reset bit mapping in mmsys driver soc: mediatek: Support MT8188 VDOSYS1 Padding in mtk-mmsys ... Link: https://lore.kernel.org/r/20231212114515.121695-2-angelogioacchino.delregno@collabora.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2023-12-22netfilter: flowtable: reorder nf_flowtable struct membersFlorian Westphal
Place the read-mostly parts accessed by the datapath first. In particular, we do access ->flags member (to see if HW offload is enabled) for every single packet, but this is placed in the 5th cacheline. priority could stay where it is, but move it too to cover a hole. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2023-12-22Merge tag 'fsl_qmc_tsa_v6.8' of https://github.com//hcodina/linux into ↵Arnd Bergmann
soc/drivers PowerQUICC QMC and TSA drivers updates for v6.8 This pull request contains updates to prepare the support for the QMC HDLC driver. - Perform some fixes - Add support for child devices - Add QMC dynamic timeslot support Signed-off-by: Herve Codina <herve.codina@bootlin.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2023-12-22Merge tag 'system-thread-for-v6.8' of ↵Arnd Bergmann
https://git.linaro.org/people/jens.wiklander/linux-tee into soc/drivers OP-TEE add reserved system thread Add support for a reserved system thread in the SMC-ABI of the OP-TEE driver. SCMI with OP-TEE transport uses this to guarantee that it will always have a thread available in the secure world. * tag 'system-thread-for-v6.8' of https://git.linaro.org/people/jens.wiklander/linux-tee: firmware: arm_scmi: optee: use optee system invocation tee: optee: support tracking system threads tee: system session tee: optee: system thread call property Link: https://lore.kernel.org/r/20231211102600.GA571787@rayden Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2023-12-22Merge tag 'drm-habanalabs-next-2023-12-19' of ↵Dave Airlie
https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux into drm-next This tag contains habanalabs driver changes for v6.8. The notable changes are: - uAPI changes: - Add sysfs entry to allow users to identify a device minor id with its debugfs path - Add sysfs entry to expose the device's module id as given to us from the f/w - Add signed device information retrieval through the INFO ioctl - New features and improvements: - Update documentation of debugfs paths - Add support for Gaudi2C device (new PCI revision number) - Add pcie reset prepare/done hooks - Firmware related fixes and changes: - Print three instances version numbers of Infineon second stage - Assume hard-reset is done by f/w upon PCIe AXI drain - Bug fixes and code cleanups: - Fix information leak in sec_attest_info() - Avoid overriding existing undefined opcode data in Gaudi2 - Multiple Queue Manager (QMAN) fixes for Gaudi2 - Set hard reset flag if graceful reset is skipped - Remove 'get temperature' debug print - Fix the new Event Queue heartbeat mechanism Signed-off-by: Dave Airlie <airlied@redhat.com> From: Oded Gabbay <ogabbay@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/ZYFpihZscr/fsRRd@ogabbay-vm-u22.habana-labs.com
2023-12-22Merge tag 'drm-misc-next-fixes-2023-12-21' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-misc into drm-next More fixes for the new imagination drier, a DT node refcount fix for the new aux bridge driver and a missing header fix for the LUT management code. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maxime Ripard <mripard@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/42dw6ok2g5kz5xljrw7t6lzrgafhwslgw3j4rbaaivluv24vkj@k4smx5r3y2gh
2023-12-22Merge tag 'drm-xe-next-2023-12-21-pr1-1' of ↵Dave Airlie
https://gitlab.freedesktop.org/drm/xe/kernel into drm-next Introduce a new DRM driver for Intel GPUs Xe, is a new driver for Intel GPUs that supports both integrated and discrete platforms. The experimental support starts with Tiger Lake. i915 will continue be the main production driver for the platforms up to Meteor Lake and Alchemist. Then the goal is to make this Intel Xe driver the primary driver for Lunar Lake and newer platforms. It uses most, if not all, of the key drm concepts, in special: TTM, drm-scheduler, drm-exec, drm-gpuvm/gpuva and others. Signed-off-by: Dave Airlie <airlied@redhat.com> [airlied: add an extra X86 check, fix a typo, fix drm_exec_init interface change]. From: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/ZYSwLgXZUZ57qGPQ@intel.com
2023-12-21entry: Move syscall_enter_from_user_mode() to header fileSven Schnelle
To allow inlining of syscall_enter_from_user_mode(), move it to entry-common.h. Signed-off-by: Sven Schnelle <svens@linux.ibm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20231218074520.1998026-4-svens@linux.ibm.com
2023-12-21entry: Move enter_from_user_mode() to header fileSven Schnelle
To allow inlining of enter_from_user_mode(), move it to entry-common.h. Signed-off-by: Sven Schnelle <svens@linux.ibm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20231218074520.1998026-3-svens@linux.ibm.com
2023-12-21entry: Move exit to usermode functions to header fileSven Schnelle
To allow inlining, move exit_to_user_mode() to entry-common.h. Signed-off-by: Sven Schnelle <svens@linux.ibm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20231218074520.1998026-2-svens@linux.ibm.com
2023-12-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netPaolo Abeni
Cross-merge networking fixes after downstream PR. Adjacent changes: drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c 23c93c3b6275 ("bnxt_en: do not map packet buffers twice") 6d1add95536b ("bnxt_en: Modify TX ring indexing logic.") tools/testing/selftests/net/Makefile 2258b666482d ("selftests: add vlan hw filter tests") a0bc96c0cd6e ("selftests: net: verify fq per-band packet limit") Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-12-21net/ipv6: Remove gc_link warn on in fib6_info_releaseDavid Ahern
A revert of 3dec89b14d37 ("net/ipv6: Remove expired routes with a separated list of routes") was sent for net-next. Revert the remainder of 5a08d0065a915 which added a warn on if a fib entry is still on the gc_link list to avoid compile failures when net is merged to net-next Signed-off-by: David Ahern <dsahern@kernel.org> Reviewed-by: Eric Dumazet <edumazet@google.com> Link: https://lore.kernel.org/r/20231219030742.25715-1-dsahern@kernel.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-12-21wifi: mac80211: add a driver callback to check active_linksMiri Korenblit
During ieee80211_set_active_links() we do (among the others): 1. Call drv_change_vif_links() with both old_active and new_active 2. Unassign the chanctx for the removed link(s) (if any) 3. Assign chanctx to the added link(s) (if any) 4. Call drv_change_vif_links() with the new_active links bitmap The problem here is that during step #1 the driver doesn't know whether we will activate multiple links simultaneously or are just doing a link switch, so it can't check there if multiple links are supported/enabled. (Some of the drivers might enable/disable this option dynamically) And during step #3, in which the driver already knows that, returning an error code (for example when multiple links are not supported or disabled), will cause a warning, and we will still complete the transition to the new_active links. (It is hard to undo things in that stage, since we released channels etc.) Therefore add a driver callback to check if the desired new_active links will be supported by the driver or not. This callback will be called in the beginning of ieee80211_set_active_links() so we won't do anything before we are sure it is supported. Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Reviewed-by: Gregory Greenman <gregory.greenman@intel.com> Reviewed-by: Johannes Berg <johannes.berg@intel.com> Link: https://msgid.link/20231220133549.64c4d70b33b8.I79708619be76b8ecd4ef3975205b8f903e24a2cd@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-12-21wifi: mac80211: allow 64-bit radiotap timestampsJohannes Berg
When reporting the radiotap timestamp, the mactime field is usually unused, we take the data from the device_timestamp. However, there can be cases where the radiotap timestamp is better reported as a 64-bit value, so since the mactime is free, add a flag to support using the mactime as a 64-bit radiotap timestamp. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Reviewed-by: Gregory Greenman <gregory.greenman@intel.com> Reviewed-by: Benjamin Berg <benjamin.berg@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://msgid.link/20231220133549.00c8b9234f0c.Ie3ce5eae33cce88fa01178e7aea94661ded1ac24@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-12-21wifi: mac80211: rework RX timestamp flagsJohannes Berg
We only have a single flag free, and before using that for another mactime flag, instead refactor the mactime flags to use a 2-bit field. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Reviewed-by: Gregory Greenman <gregory.greenman@intel.com> Reviewed-by: Benjamin Berg <benjamin.berg@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://msgid.link/20231220133549.d0e664832d14.I20c8900106f9bf81316bed778b1e3ce145785274@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-12-21wifi: cfg80211: handle UHB AP and STA power typeMukesh Sisodiya
UHB AP send supported power type(LPI, SP, VLP) in beacon and probe response IE and STA should connect to these AP only if their regulatory support the AP power type. Beacon/Probe response are reported to userspace with reason "STA regulatory not supporting to connect to AP based on transmitted power type" and it should not connect to AP. Signed-off-by: Mukesh Sisodiya <mukesh.sisodiya@intel.com> Reviewed-by: Gregory Greenman <gregory.greenman@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://msgid.link/20231220133549.cbfbef9170a9.I432f78438de18aa9f5c9006be12e41dc34cc47c5@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-12-21wifi: cfg80211: Schedule regulatory check on BSS STA channel changeAndrei Otcheretianski
Due to different relaxation policies it may be needed to re-check channels after a BSS station interface is disconnected or performed a channel switch. Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com> Reviewed-by: Gregory Greenman <gregory.greenman@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://msgid.link/20231220133549.1f2f8475bcf1.I1879d259d8d756159c8060f61f4bce172e6d323e@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-12-21wifi: cfg80211: reg: Support P2P operation on DFS channelsAndrei Otcheretianski
FCC-594280 D01 Section B.3 allows peer-to-peer and ad hoc devices to operate on DFS channels while they operate under the control of a concurrent DFS master. For example, it is possible to have a P2P GO on a DFS channel as long as BSS connection is active on the same channel. Allow such operation by adding additional regulatory flags to indicate DFS concurrent channels and capable devices. Add the required relaxations in DFS regulatory checks. Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com> Reviewed-by: Gregory Greenman <gregory.greenman@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://msgid.link/20231220133549.bdfb8a9c7c54.I973563562969a27fea8ec5685b96a3a47afe142f@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-12-21wifi: mac80211: address some kerneldoc warningsJonathan Corbet
include/net/mac80111.h contains a number of either excess or incorrect kerneldoc entries for structure members, leading to these warnings: ./include/net/mac80211.h:491: warning: Excess struct member 'rssi' description in 'ieee80211_event' ./include/net/mac80211.h:491: warning: Excess struct member 'mlme' description in 'ieee80211_event' ./include/net/mac80211.h:491: warning: Excess struct member 'ba' description in 'ieee80211_event' ./include/net/mac80211.h:777: warning: Excess struct member 'ack_enabled' description in 'ieee80211_bss_conf' ./include/net/mac80211.h:1222: warning: Excess struct member 'ampdu_ack_len' description in 'ieee80211_tx_info' ./include/net/mac80211.h:1222: warning: Excess struct member 'ampdu_len' description in 'ieee80211_tx_info' ./include/net/mac80211.h:1222: warning: Excess struct member 'ack_signal' description in 'ieee80211_tx_info' ./include/net/mac80211.h:2920: warning: Excess struct member 'radiotap_he' description in 'ieee80211_hw' Fix or remove the entries as needed. This change removes 208 warnings from a "make htmldocs" build. Signed-off-by: Jonathan Corbet <corbet@lwn.net> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://msgid.link/87zfy4bhxo.fsf@meer.lwn.net Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-12-21wifi: cfg80211: address several kerneldoc warningsJonathan Corbet
include/net/cfg80211.h includes a number of kerneldoc entries for struct members that do not exist, leading to these warnings: ./include/net/cfg80211.h:3192: warning: Excess struct member 'band_pref' description in 'cfg80211_bss_selection' ./include/net/cfg80211.h:3192: warning: Excess struct member 'adjust' description in 'cfg80211_bss_selection' ./include/net/cfg80211.h:6181: warning: Excess struct member 'bssid' description in 'wireless_dev' ./include/net/cfg80211.h:6181: warning: Excess struct member 'beacon_interval' description in 'wireless_dev' ./include/net/cfg80211.h:7299: warning: Excess struct member 'bss' description in 'cfg80211_rx_assoc_resp_data' Remove and/or repair each entry to address the warnings and ensure a proper docs build for the affected structures. Signed-off-by: Jonathan Corbet <corbet@lwn.net> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Link: https://msgid.link/87plz1g2sc.fsf@meer.lwn.net Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-12-21kernel/module: improve documentation for try_module_get()Marco Pagani
The sentence "this call will fail if the module is already being removed" is potentially confusing and may contradict the rest of the documentation. If one tries to get a module that has already been removed using a stale pointer, the kernel will crash. Signed-off-by: Marco Pagani <marpagan@redhat.com> Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
2023-12-21Merge tag 'afs-fixes-20231221' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs Pull AFS fixes from David Howells: "Improve the interaction of arbitrary lookups in the AFS dynamic root that hit DNS lookup failures [1] where kafs behaves differently from openafs and causes some applications to fail that aren't expecting that. Further, negative DNS results aren't getting removed and are causing failures to persist. - Always delete unused (particularly negative) dentries as soon as possible so that they don't prevent future lookups from retrying. - Fix the handling of new-style negative DNS lookups in ->lookup() to make them return ENOENT so that userspace doesn't get confused when stat succeeds but the following open on the looked up file then fails. - Fix key handling so that DNS lookup results are reclaimed almost as soon as they expire rather than sitting round either forever or for an additional 5 mins beyond a set expiry time returning EKEYEXPIRED. They persist for 1s as /bin/ls will do a second stat call if the first fails" Link: https://bugzilla.kernel.org/show_bug.cgi?id=216637 [1] Reviewed-by: Jeffrey Altman <jaltman@auristor.com> * tag 'afs-fixes-20231221' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs: keys, dns: Allow key types (eg. DNS) to be reclaimed immediately on expiry afs: Fix dynamic root lookup DNS check afs: Fix the dynamic root's d_delete to always delete unused dentries
2023-12-21Merge tag 'net-6.7-rc7' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Paolo Abeni: "Including fixes from WiFi and bpf. Current release - regressions: - bpf: syzkaller found null ptr deref in unix_bpf proto add - eth: i40e: fix ST code value for clause 45 Previous releases - regressions: - core: return error from sk_stream_wait_connect() if sk_wait_event() fails - ipv6: revert remove expired routes with a separated list of routes - wifi rfkill: - set GPIO direction - fix crash with WED rx support enabled - bluetooth: - fix deadlock in vhci_send_frame - fix use-after-free in bt_sock_recvmsg - eth: mlx5e: fix a race in command alloc flow - eth: ice: fix PF with enabled XDP going no-carrier after reset - eth: bnxt_en: do not map packet buffers twice Previous releases - always broken: - core: - check vlan filter feature in vlan_vids_add_by_dev() and vlan_vids_del_by_dev() - check dev->gso_max_size in gso_features_check() - mptcp: fix inconsistent state on fastopen race - phy: skip LED triggers on PHYs on SFP modules - eth: mlx5e: - fix double free of encap_header - fix slab-out-of-bounds in mlx5_query_nic_vport_mac_list()" * tag 'net-6.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (69 commits) net: check dev->gso_max_size in gso_features_check() kselftest: rtnetlink.sh: use grep_fail when expecting the cmd fail net/ipv6: Revert remove expired routes with a separated list of routes net: avoid build bug in skb extension length calculation net: ethernet: mtk_wed: fix possible NULL pointer dereference in mtk_wed_wo_queue_tx_clean() net: stmmac: fix incorrect flag check in timestamp interrupt selftests: add vlan hw filter tests net: check vlan filter feature in vlan_vids_add_by_dev() and vlan_vids_del_by_dev() net: hns3: add new maintainer for the HNS3 ethernet driver net: mana: select PAGE_POOL net: ks8851: Fix TX stall caused by TX buffer overrun ice: Fix PF with enabled XDP going no-carrier after reset ice: alter feature support check for SRIOV and LAG ice: stop trashing VF VSI aggregator node ID information mailmap: add entries for Geliang Tang mptcp: fill in missing MODULE_DESCRIPTION() mptcp: fix inconsistent state on fastopen race selftests: mptcp: join: fix subflow_send_ack lookup net: phy: skip LED triggers on PHYs on SFP modules bpf: Add missing BPF_LINK_TYPE invocations ...
2023-12-21drm/xe/uapi: Remove reset uevent for nowRodrigo Vivi
This kernel uevent is getting removed for now. It will come back later with a better future proof name. v2: Rebase (Francois Dugast) Cc: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com> Cc: Lucas De Marchi <lucas.demarchi@intel.com> Cc: Francois Dugast <francois.dugast@intel.com> Cc: Aravind Iddamsetty <aravind.iddamsetty@linux.intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Reviewed-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com> Acked-by: Lucas De Marchi <lucas.demarchi@intel.com> Acked-by: José Roberto de Souza <jose.souza@intel.com> Acked-by: Mateusz Naklicki <mateusz.naklicki@intel.com> Signed-off-by: Francois Dugast <francois.dugast@intel.com>
2023-12-21drm/xe/uapi: Move DRM_XE_ACC_GRANULARITY_* where they are usedFrancois Dugast
Bring those defines close to the context where they can be used. Also apply indentation as it is done for other subsets of defines. Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Acked-by: José Roberto de Souza <jose.souza@intel.com> Acked-by: Mateusz Naklicki <mateusz.naklicki@intel.com> Signed-off-by: Francois Dugast <francois.dugast@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2023-12-21drm/xe/uapi: Move CPU_CACHING defines before docFrancois Dugast
Move those defines to align on the rule used elsewhere in the file which was introduced by commit 4f082f2c3a37 ("drm/xe: Move defines before relevant fields"). Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Acked-by: José Roberto de Souza <jose.souza@intel.com> Acked-by: Mateusz Naklicki <mateusz.naklicki@intel.com> Signed-off-by: Francois Dugast <francois.dugast@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2023-12-21io_uring/kbuf: add method for returning provided buffer ring headJens Axboe
The tail of the provided ring buffer is shared between the kernel and the application, but the head is private to the kernel as the application doesn't need to see it. However, this also prevents the application from knowing how many buffers the kernel has consumed. Usually this is fine, as the information is inherently racy in that the kernel could be consuming buffers continually, but for cleanup purposes it may be relevant to know how many buffers are still left in the ring. Add IORING_REGISTER_PBUF_STATUS which will return status for a given provided buffer ring. Right now it just returns the head, but space is reserved for more information later in, if needed. Link: https://github.com/axboe/liburing/discussions/1020 Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-12-21drm/xe/uapi: Add examples of user space codeFrancois Dugast
Complete the documentation of some structs by adding functional examples of user space code. Those examples are intentionally kept very simple. Put together, they provide a foundation for a minimal application that executes a job using the Xe driver. v2: Remove use of DRM_XE_VM_BIND_FLAG_ASYNC (Francois Dugast) Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Acked-by: José Roberto de Souza <jose.souza@intel.com> Acked-by: Mateusz Naklicki <mateusz.naklicki@intel.com> Signed-off-by: Francois Dugast <francois.dugast@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2023-12-21drm/xe/uapi: Add block diagram of a deviceFrancois Dugast
In order to make proper use the uAPI, a prerequisite is to understand some key concepts about the discrete GPU devices which are supported by the Xe driver. For example, some structs defined in the uAPI are an abstraction of a hardware component with a specific role. This diagram helps to build a mental representation of a device how it is seen by the Xe driver. As written in the documentation, it does not intend to be a literal representation of an existing device. A lot more information could be added but the intention for the overview is to keep it simple, and go into detail as needed in other sections. v2: Add GT1 inside Tile0 (José Roberto de Souza) Reviewed-by: José Roberto de Souza <jose.souza@intel.com> Acked-by: José Roberto de Souza <jose.souza@intel.com> Acked-by: Mateusz Naklicki <mateusz.naklicki@intel.com> Signed-off-by: Francois Dugast <francois.dugast@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>