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2023-04-26drm/amd/display: Do not clear GPINT register when releasing DMUB from resetAurabindo Pillai1-1/+0
[Why & How] There's no need to clear GPINT register for DMUB when releasing it from reset. Fix that. Fixes: ac2e555e0a7f ("drm/amd/display: Add DMCUB source files and changes for DCN32/321") Reviewed-by: Leo Li <[email protected]> Signed-off-by: Aurabindo Pillai <[email protected]> Tested-by: Daniel Wheeler <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2023-04-26drm/amd/display: Reset OUTBOX0 r/w pointer on DMUB resetCruise Hung1-0/+2
[Why & How] We missed resetting OUTBOX0 mailbox r/w pointer on DMUB reset. Fix it. Fixes: 6ecf9773a503 ("drm/amd/display: Fix DMUB outbox trace in S4 (#4465)") Signed-off-by: Cruise Hung <[email protected]> Acked-by: Aurabindo Pillai <[email protected]> Tested-by: Daniel Wheeler <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2023-04-26drm/amd/display: Fixes for dcn32_clk_mgr implementationAurabindo Pillai1-0/+5
[Why&How] Fix CLK MGR early initialization and add logging. Fixes: 265280b99822 ("drm/amd/display: add CLKMGR changes for DCN32/321") Reviewed-by: Leo Li <[email protected]> Reviewed-by: Qingqing Zhuo <[email protected]> Signed-off-by: Aurabindo Pillai <[email protected]> Tested-by: Daniel Wheeler <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2023-04-26drm/amd/display: Disable migration to ensure consistency of per-CPU variableTianci Yin1-0/+2
[why] Since the variable fpu_recursion_depth is per-CPU type, it has one copy on each CPU, thread migration causes data consistency issue, then the call trace shows up. And preemption disabling can't prevent migration. [how] Disable migration to ensure consistency of fpu_recursion_depth. Reviewed-by: Aurabindo Pillai <[email protected]> Signed-off-by: Tianci Yin <[email protected]> Tested-by: Daniel Wheeler <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2023-04-26drm/amd/display: remove incorrect early returnAurabindo Pillai1-1/+0
[Why&How] Remove incorrect early return in a device specific fifo reset workaround Reviewed-by: Leo Li <[email protected]> Reviewed-by: Qingqing Zhuo <[email protected]> Signed-off-by: Aurabindo Pillai <[email protected]> Tested-by: Daniel Wheeler <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2023-04-26drm/amd/display: Return error code on DSC atomic check failureHersen Wu2-0/+2
[Why&How] We were not returning -EINVAL on DSC atomic check fail. Add it. Fixes: 71be4b16d39a ("drm/amd/display: dsc validate fail not pass to atomic check") Reviewed-by: Aurabindo Pillai <[email protected]> Signed-off-by: Hersen Wu <[email protected]> Tested-by: Daniel Wheeler <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2023-04-26drm/amd/display: Improvement for handling edp link training failsJingwen Zhu2-8/+16
[Why] The eDP retrain will cause the DPCD 300 to be reset to default. And cause the brightness can't be set correctly. [How] delete the call to edp panel power control in both enable_link_output/disable_link_output entirely and only call edp panel control in enable_link_dp and  disable_link_dp once. Reviewed-by: Charlene Liu <[email protected]> Acked-by: Qingqing Zhuo <[email protected]> Signed-off-by: Jingwen Zhu <[email protected]> Tested-by: Daniel Wheeler <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2023-04-26drm/amd/display: Apply correct panel mode when reinitializing hardwareMichael Mityushkin3-1/+6
[Why] When link training during engine recovery, ASSR might fail causing panel mode to be reset to default. This should not happen for eDP as it will prevent the panel from turning back on. [How] Added dp_panel_mode to struct dc_link to remember previously applied panel mode. Do not reset panel mode to default while performing link training if previously used panel mode = eDP. Reviewed-by: Nicholas Kazlauskas <[email protected]> Acked-by: Qingqing Zhuo <[email protected]> Signed-off-by: Michael Mityushkin <[email protected]> Tested-by: Daniel Wheeler <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2023-04-26drm/amd/display: fix access hdcp_workqueue assertHersen Wu2-6/+16
[Why] hdcp are enabled for asics from raven. for old asics which hdcp are not enabled, hdcp_workqueue are null. some access to hdcp work queue are not guarded with pointer check. [How] add hdcp_workqueue pointer check before access workqueue. Fixes: 82986fd631fa ("drm/amd/display: save restore hdcp state when display is unplugged from mst hub") Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2444 Reported-by: Niklāvs Koļesņikovs <[email protected]> Reviewed-by: Bhawanpreet Lakha <[email protected]> Acked-by: Qingqing Zhuo <[email protected]> Signed-off-by: Hersen Wu <[email protected]> Tested-by: Daniel Wheeler <[email protected]> Signed-off-by: Alex Deucher <[email protected]> Cc: [email protected]
2023-04-26drm/amd/display: Reduce SubVP + DRR stretch marginAlvin Lee1-1/+1
[Description] - Having excessively large margin causes failure in the static schedulability check in some cases for SubVP + DRR - 100us of DRR margin is sufficient based on a weeks worth of stress testing on different display configs Reviewed-by: Michael Strauss <[email protected]> Acked-by: Qingqing Zhuo <[email protected]> Signed-off-by: Alvin Lee <[email protected]> Tested-by: Daniel Wheeler <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2023-04-26drm/amd/display: fix memleak in aconnector->timing_requestedHersen Wu1-3/+6
[Why] when amdgpu_dm_update_connector_after_detect is called two times successively with valid sink, memory allocated of aconnector->timing_requested for the first call is not free. this causes memeleak. [How] allocate memory only when aconnector->timing_requested is null. Reviewed-by: Qingqing Zhuo <[email protected]> Acked-by: Qingqing Zhuo <[email protected]> Signed-off-by: Hersen Wu <[email protected]> Tested-by: Daniel Wheeler <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2023-04-26drm/amd/display: Fix hang when skipping modesetAurabindo Pillai2-1/+7
[Why&How] When skipping full modeset since the only state change was a front porch change, the DC commit sequence requires extra checks to handle non existant plane states being asked to be removed from context. Reviewed-by: Alvin Lee <[email protected]> Acked-by: Qingqing Zhuo <[email protected]> Signed-off-by: Aurabindo Pillai <[email protected]> Tested-by: Daniel Wheeler <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2023-04-26drm/amd/display: allow edp updates for virtual signalAlex Hung1-0/+1
[Why] When IGT's kms_hdmi_inject forces EDID for HDMI audio, dc rejects the request because virtual signal is not in dc_is_audio_capable_signal function. [How] Includes SIGNAL_TYPE_VIRTUAL as audio capable. Reviewed-by: Chao-kai Wang <[email protected]> Acked-by: Qingqing Zhuo <[email protected]> Signed-off-by: Alex Hung <[email protected]> Signed-off-by: Wenchieh Chien <[email protected]> Tested-by: Daniel Wheeler <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2023-04-26drm/amd/display: copy dmub caps to dc on dcn31Josip Pavic1-0/+4
[Why & How] Add code path to copy dmub caps to dc, which is missing on dcn31 Acked-by: Qingqing Zhuo <[email protected]> Signed-off-by: Josip Pavic <[email protected]> Tested-by: Daniel Wheeler <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2023-04-26drm/amd/display: Add missing WA and MCLK validationRodrigo Siqueira3-2/+19
When the commit fff7eb56b376 ("drm/amd/display: Don't set dram clock change requirement for SubVP") was merged, we missed some parts associated with the MCLK switch. This commit adds all the missing parts. Fixes: fff7eb56b376 ("drm/amd/display: Don't set dram clock change requirement for SubVP") Reviewed-by: Aurabindo Pillai <[email protected]> Signed-off-by: Rodrigo Siqueira <[email protected]> Tested-by: Daniel Wheeler <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2023-04-26drm/amd/display: Block optimize on consecutive FAMS enablesWesley Chalmers2-3/+22
[WHY] It is possible to commit state multiple times in rapid succession with FAMS enabled; if each of these commits were to set optimized_required, then the user may see latency. [HOW] fw_based_mclk_switching is currently not used in dc->clk_mgr; use it to track whether the current state has FAMS enabled; if it has, then do not disable FAMS in prepare_bandwidth, and do not set optimized_required. Reviewed-by: Rodrigo Siqueira <[email protected]> Signed-off-by: Wesley Chalmers <[email protected]> Tested-by: Daniel Wheeler <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2023-04-26drm/amd/display: Do not set drr on pipe commitWesley Chalmers2-0/+13
[WHY] Writing to DRR registers such as OTG_V_TOTAL_MIN on the same frame as a pipe commit can cause underflow. [HOW] Move DMUB p-state delegate into optimze_bandwidth; enabling FAMS sets optimized_required. This change expects that Freesync requests are blocked when optimized_required is true. Reviewed-by: Rodrigo Siqueira <[email protected]> Signed-off-by: Wesley Chalmers <[email protected]> Tested-by: Daniel Wheeler <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2023-04-27Merge tag 'drm-misc-next-fixes-2023-04-26' of ↵Dave Airlie7-613/+21
git://anongit.freedesktop.org/drm/drm-misc into drm-next drm-misc-next-fixes for v6.4-rc1: - Revert uAPI from accel/qaic. - Fix TTM build on archs where PMD_SHIFT is not constant. - Improve error handling in nt35950. - Fix double unregister in otm8009a when removing the driver. Signed-off-by: Dave Airlie <[email protected]> From: Maarten Lankhorst <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-04-26blk-integrity: register sysfs attributes on struct deviceThomas Weißschuh4-72/+8
The "integrity" kobject only acted as a holder for static sysfs entries. It also was embedded into struct gendisk without managing it, violating assumptions of the driver core. Instead register the sysfs entries directly onto the struct device. Also drop the now unused member integrity_kobj from struct gendisk. Suggested-by: Christoph Hellwig <[email protected]> Signed-off-by: Thomas Weißschuh <[email protected]> Reviewed-by: Christoph Hellwig <[email protected]> Reviewed-by: Martin K. Petersen <[email protected]> Link: https://lore.kernel.org/r/20230309-kobj_release-gendisk_integrity-v3-3-ceccb4493c46@weissschuh.net Signed-off-by: Jens Axboe <[email protected]>
2023-04-26blk-integrity: convert to struct device_attributeThomas Weißschuh1-65/+62
An upcoming patch will register the integrity attributes directly with the struct device kobject. For this the attributes have to be implemented in terms of struct device_attribute. Signed-off-by: Thomas Weißschuh <[email protected]> Reviewed-by: Christoph Hellwig <[email protected]> Reviewed-by: Martin K. Petersen <[email protected]> Link: https://lore.kernel.org/r/20230309-kobj_release-gendisk_integrity-v3-2-ceccb4493c46@weissschuh.net Signed-off-by: Jens Axboe <[email protected]>
2023-04-26blk-integrity: use sysfs_emitThomas Weißschuh1-10/+9
The correct way to emit data into sysfs is via sysfs_emit(), use it. Also perform some trivial syntactic cleanups. Signed-off-by: Thomas Weißschuh <[email protected]> Reviewed-by: Christoph Hellwig <[email protected]> Reviewed-by: Martin K. Petersen <[email protected]> Link: https://lore.kernel.org/r/20230309-kobj_release-gendisk_integrity-v3-1-ceccb4493c46@weissschuh.net Signed-off-by: Jens Axboe <[email protected]>
2023-04-26Merge tag 'net-next-6.4' of ↵Linus Torvalds1925-47075/+138640
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Paolo Abeni: "Core: - Introduce a config option to tweak MAX_SKB_FRAGS. Increasing the default value allows for better BIG TCP performances - Reduce compound page head access for zero-copy data transfers - RPS/RFS improvements, avoiding unneeded NET_RX_SOFTIRQ when possible - Threaded NAPI improvements, adding defer skb free support and unneeded softirq avoidance - Address dst_entry reference count scalability issues, via false sharing avoidance and optimize refcount tracking - Add lockless accesses annotation to sk_err[_soft] - Optimize again the skb struct layout - Extends the skb drop reasons to make it usable by multiple subsystems - Better const qualifier awareness for socket casts BPF: - Add skb and XDP typed dynptrs which allow BPF programs for more ergonomic and less brittle iteration through data and variable-sized accesses - Add a new BPF netfilter program type and minimal support to hook BPF programs to netfilter hooks such as prerouting or forward - Add more precise memory usage reporting for all BPF map types - Adds support for using {FOU,GUE} encap with an ipip device operating in collect_md mode and add a set of BPF kfuncs for controlling encap params - Allow BPF programs to detect at load time whether a particular kfunc exists or not, and also add support for this in light skeleton - Bigger batch of BPF verifier improvements to prepare for upcoming BPF open-coded iterators allowing for less restrictive looping capabilities - Rework RCU enforcement in the verifier, add kptr_rcu and enforce BPF programs to NULL-check before passing such pointers into kfunc - Add support for kptrs in percpu hashmaps, percpu LRU hashmaps and in local storage maps - Enable RCU semantics for task BPF kptrs and allow referenced kptr tasks to be stored in BPF maps - Add support for refcounted local kptrs to the verifier for allowing shared ownership, useful for adding a node to both the BPF list and rbtree - Add BPF verifier support for ST instructions in convert_ctx_access() which will help new -mcpu=v4 clang flag to start emitting them - Add ARM32 USDT support to libbpf - Improve bpftool's visual program dump which produces the control flow graph in a DOT format by adding C source inline annotations Protocols: - IPv4: Allow adding to IPv4 address a 'protocol' tag. Such value indicates the provenance of the IP address - IPv6: optimize route lookup, dropping unneeded R/W lock acquisition - Add the handshake upcall mechanism, allowing the user-space to implement generic TLS handshake on kernel's behalf - Bridge: support per-{Port, VLAN} neighbor suppression, increasing resilience to nodes failures - SCTP: add support for Fair Capacity and Weighted Fair Queueing schedulers - MPTCP: delay first subflow allocation up to its first usage. This will allow for later better LSM interaction - xfrm: Remove inner/outer modes from input/output path. These are not needed anymore - WiFi: - reduced neighbor report (RNR) handling for AP mode - HW timestamping support - support for randomized auth/deauth TA for PASN privacy - per-link debugfs for multi-link - TC offload support for mac80211 drivers - mac80211 mesh fast-xmit and fast-rx support - enable Wi-Fi 7 (EHT) mesh support Netfilter: - Add nf_tables 'brouting' support, to force a packet to be routed instead of being bridged - Update bridge netfilter and ovs conntrack helpers to handle IPv6 Jumbo packets properly, i.e. fetch the packet length from hop-by-hop extension header. This is needed for BIT TCP support - The iptables 32bit compat interface isn't compiled in by default anymore - Move ip(6)tables builtin icmp matches to the udptcp one. This has the advantage that icmp/icmpv6 match doesn't load the iptables/ip6tables modules anymore when iptables-nft is used - Extended netlink error report for netdevice in flowtables and netdev/chains. Allow for incrementally add/delete devices to netdev basechain. Allow to create netdev chain without device Driver API: - Remove redundant Device Control Error Reporting Enable, as PCI core has already error reporting enabled at enumeration time - Move Multicast DB netlink handlers to core, allowing devices other then bridge to use them - Allow the page_pool to directly recycle the pages from safely localized NAPI - Implement lockless TX queue stop/wake combo macros, allowing for further code de-duplication and sanitization - Add YNL support for user headers and struct attrs - Add partial YNL specification for devlink - Add partial YNL specification for ethtool - Add tc-mqprio and tc-taprio support for preemptible traffic classes - Add tx push buf len param to ethtool, specifies the maximum number of bytes of a transmitted packet a driver can push directly to the underlying device - Add basic LED support for switch/phy - Add NAPI documentation, stop relaying on external links - Convert dsa_master_ioctl() to netdev notifier. This is a preparatory work to make the hardware timestamping layer selectable by user space - Add transceiver support and improve the error messages for CAN-FD controllers New hardware / drivers: - Ethernet: - AMD/Pensando core device support - MediaTek MT7981 SoC - MediaTek MT7988 SoC - Broadcom BCM53134 embedded switch - Texas Instruments CPSW9G ethernet switch - Qualcomm EMAC3 DWMAC ethernet - StarFive JH7110 SoC - NXP CBTX ethernet PHY - WiFi: - Apple M1 Pro/Max devices - RealTek rtl8710bu/rtl8188gu - RealTek rtl8822bs, rtl8822cs and rtl8821cs SDIO chipset - Bluetooth: - Realtek RTL8821CS, RTL8851B, RTL8852BS - Mediatek MT7663, MT7922 - NXP w8997 - Actions Semi ATS2851 - QTI WCN6855 - Marvell 88W8997 - Can: - STMicroelectronics bxcan stm32f429 Drivers: - Ethernet NICs: - Intel (1G, icg): - add tracking and reporting of QBV config errors - add support for configuring max SDU for each Tx queue - Intel (100G, ice): - refactor mailbox overflow detection to support Scalable IOV - GNSS interface optimization - Intel (i40e): - support XDP multi-buffer - nVidia/Mellanox: - add the support for linux bridge multicast offload - enable TC offload for egress and engress MACVLAN over bond - add support for VxLAN GBP encap/decap flows offload - extend packet offload to fully support libreswan - support tunnel mode in mlx5 IPsec packet offload - extend XDP multi-buffer support - support MACsec VLAN offload - add support for dynamic msix vectors allocation - drop RX page_cache and fully use page_pool - implement thermal zone to report NIC temperature - Netronome/Corigine: - add support for multi-zone conntrack offload - Solarflare/Xilinx: - support offloading TC VLAN push/pop actions to the MAE - support TC decap rules - support unicast PTP - Other NICs: - Broadcom (bnxt): enforce software based freq adjustments only on shared PHC NIC - RealTek (r8169): refactor to addess ASPM issues during NAPI poll - Micrel (lan8841): add support for PTP_PF_PEROUT - Cadence (macb): enable PTP unicast - Engleder (tsnep): add XDP socket zero-copy support - virtio-net: implement exact header length guest feature - veth: add page_pool support for page recycling - vxlan: add MDB data path support - gve: add XDP support for GQI-QPL format - geneve: accept every ethertype - macvlan: allow some packets to bypass broadcast queue - mana: add support for jumbo frame - Ethernet high-speed switches: - Microchip (sparx5): Add support for TC flower templates - Ethernet embedded switches: - Broadcom (b54): - configure 6318 and 63268 RGMII ports - Marvell (mv88e6xxx): - faster C45 bus scan - Microchip: - lan966x: - add support for IS1 VCAP - better TX/RX from/to CPU performances - ksz9477: add ETS Qdisc support - ksz8: enhance static MAC table operations and error handling - sama7g5: add PTP capability - NXP (ocelot): - add support for external ports - add support for preemptible traffic classes - Texas Instruments: - add CPSWxG SGMII support for J7200 and J721E - Intel WiFi (iwlwifi): - preparation for Wi-Fi 7 EHT and multi-link support - EHT (Wi-Fi 7) sniffer support - hardware timestamping support for some devices/firwmares - TX beacon protection on newer hardware - Qualcomm 802.11ax WiFi (ath11k): - MU-MIMO parameters support - ack signal support for management packets - RealTek WiFi (rtw88): - SDIO bus support - better support for some SDIO devices (e.g. MAC address from efuse) - RealTek WiFi (rtw89): - HW scan support for 8852b - better support for 6 GHz scanning - support for various newer firmware APIs - framework firmware backwards compatibility - MediaTek WiFi (mt76): - P2P support - mesh A-MSDU support - EHT (Wi-Fi 7) support - coredump support" * tag 'net-next-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2078 commits) net: phy: hide the PHYLIB_LEDS knob net: phy: marvell-88x2222: remove unnecessary (void*) conversions tcp/udp: Fix memleaks of sk and zerocopy skbs with TX timestamp. net: amd: Fix link leak when verifying config failed net: phy: marvell: Fix inconsistent indenting in led_blink_set lan966x: Don't use xdp_frame when action is XDP_TX tsnep: Add XDP socket zero-copy TX support tsnep: Add XDP socket zero-copy RX support tsnep: Move skb receive action to separate function tsnep: Add functions for queue enable/disable tsnep: Rework TX/RX queue initialization tsnep: Replace modulo operation with mask net: phy: dp83867: Add led_brightness_set support net: phy: Fix reading LED reg property drivers: nfc: nfcsim: remove return value check of `dev_dir` net: phy: dp83867: Remove unnecessary (void*) conversions net: ethtool: coalesce: try to make user settings stick twice net: mana: Check if netdev/napi_alloc_frag returns single page net: mana: Rename mana_refill_rxoob and remove some empty lines net: veth: add page_pool stats ...
2023-04-27xfs: fix livelock in delayed allocation at ENOSPCDave Chinner1-1/+0
On a filesystem with a non-zero stripe unit and a large sequential write, delayed allocation will set a minimum allocation length of the stripe unit. If allocation fails because there are no extents long enough for an aligned minlen allocation, it is supposed to fall back to unaligned allocation which allows single block extents to be allocated. When the allocator code was rewritting in the 6.3 cycle, this fallback was broken - the old code used args->fsbno as the both the allocation target and the allocation result, the new code passes the target as a separate parameter. The conversion didn't handle the aligned->unaligned fallback path correctly - it reset args->fsbno to the target fsbno on failure which broke allocation failure detection in the high level code and so it never fell back to unaligned allocations. This resulted in a loop in writeback trying to allocate an aligned block, getting a false positive success, trying to insert the result in the BMBT. This did nothing because the extent already was in the BMBT (merge results in an unchanged extent) and so it returned the prior extent to the conversion code as the current iomap. Because the iomap returned didn't cover the offset we tried to map, xfs_convert_blocks() then retries the allocation, which fails in the same way and now we have a livelock. Reported-and-tested-by: Brian Foster <[email protected]> Fixes: 85843327094f ("xfs: factor xfs_bmap_btalloc()") Signed-off-by: Dave Chinner <[email protected]> Reviewed-by: Darrick J. Wong <[email protected]>
2023-04-26KVM: x86: Preserve TDP MMU roots until they are explicitly invalidatedSean Christopherson1-65/+56
Preserve TDP MMU roots until they are explicitly invalidated by gifting the TDP MMU itself a reference to a root when it is allocated. Keeping a reference in the TDP MMU fixes a flaw where the TDP MMU exhibits terrible performance, and can potentially even soft-hang a vCPU, if a vCPU frequently unloads its roots, e.g. when KVM is emulating SMI+RSM. When KVM emulates something that invalidates _all_ TLB entries, e.g. SMI and RSM, KVM unloads all of the vCPUs roots (KVM keeps a small per-vCPU cache of previous roots). Unloading roots is a simple way to ensure KVM flushes and synchronizes all roots for the vCPU, as KVM flushes and syncs when allocating a "new" root (from the vCPU's perspective). In the shadow MMU, KVM keeps track of all shadow pages, roots included, in a per-VM hash table. Unloading a shadow MMU root just wipes it from the per-vCPU cache; the root is still tracked in the per-VM hash table. When KVM loads a "new" root for the vCPU, KVM will find the old, unloaded root in the per-VM hash table. Unlike the shadow MMU, the TDP MMU doesn't track "inactive" roots in a per-VM structure, where "active" in this case means a root is either in-use or cached as a previous root by at least one vCPU. When a TDP MMU root becomes inactive, i.e. the last vCPU reference to the root is put, KVM immediately frees the root (asterisk on "immediately" as the actual freeing may be done by a worker, but for all intents and purposes the root is gone). The TDP MMU behavior is especially problematic for 1-vCPU setups, as unloading all roots effectively frees all roots. The issue is mitigated to some degree in multi-vCPU setups as a different vCPU usually holds a reference to an unloaded root and thus keeps the root alive, allowing the vCPU to reuse its old root after unloading (with a flush+sync). The TDP MMU flaw has been known for some time, as until very recently, KVM's handling of CR0.WP also triggered unloading of all roots. The CR0.WP toggling scenario was eventually addressed by not unloading roots when _only_ CR0.WP is toggled, but such an approach doesn't Just Work for emulating SMM as KVM must emulate a full TLB flush on entry and exit to/from SMM. Given that the shadow MMU plays nice with unloading roots at will, teaching the TDP MMU to do the same is far less complex than modifying KVM to track which roots need to be flushed before reuse. Note, preserving all possible TDP MMU roots is not a concern with respect to memory consumption. Now that the role for direct MMUs doesn't include information about the guest, e.g. CR0.PG, CR0.WP, CR4.SMEP, etc., there are _at most_ six possible roots (where "guest_mode" here means L2): 1. 4-level !SMM !guest_mode 2. 4-level SMM !guest_mode 3. 5-level !SMM !guest_mode 4. 5-level SMM !guest_mode 5. 4-level !SMM guest_mode 6. 5-level !SMM guest_mode And because each vCPU can track 4 valid roots, a VM can already have all 6 root combinations live at any given time. Not to mention that, in practice, no sane VMM will advertise different guest.MAXPHYADDR values across vCPUs, i.e. KVM won't ever use both 4-level and 5-level roots for a single VM. Furthermore, the vast majority of modern hypervisors will utilize EPT/NPT when available, thus the guest_mode=%true cases are also unlikely to be utilized. Reported-by: Jeremi Piotrowski <[email protected]> Link: https://lore.kernel.org/all/[email protected] Link: https://lkml.kernel.org/r/20220209170020.1775368-1-pbonzini%40redhat.com Link: https://lore.kernel.org/all/[email protected] Link: https://lore.kernel.org/all/[email protected] Link: https://lore.kernel.org/all/[email protected] Cc: Ben Gardon <[email protected]> Cc: David Matlack <[email protected]> Cc: [email protected] Tested-by: Jeremi Piotrowski <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Sean Christopherson <[email protected]>
2023-04-26hte: tegra-194: Use proper includesLinus Walleij1-5/+4
The test driver uses the gpiod consumer API so include the right <linux/gpio/consumer.h> header. This may cause a problem with struct of_device_id being implcitly pulled in by the legacy header <linux/gpio.h> so include <linux/mod_devicetable.h> explicitly as well. While at it, drop explicit moduleparam.h (it's included with module.h) and sort the headers. Signed-off-by: Linus Walleij <[email protected]> Signed-off-by: Andy Shevchenko <[email protected]> Acked-by: Dipen Patel <[email protected]> Signed-off-by: Dipen Patel <[email protected]>
2023-04-26hte: Use device_match_of_node()ye xingchen1-1/+1
Replace the open-code with device_match_of_node(). Signed-off-by: ye xingchen <[email protected]> Acked-by: Dipen Patel <[email protected]> Signed-off-by: Dipen Patel <[email protected]>
2023-04-26hte: tegra-194: Fix off by one in tegra_hte_map_to_line_id()Dan Carpenter1-1/+1
The "map_sz" is the number of elements in the "m" array so the > comparison needs to be changed to >= to prevent an out of bounds read. Fixes: 09574cca6ad6 ("hte: Add Tegra194 HTE kernel provider") Signed-off-by: Dan Carpenter <[email protected]> Acked-by: Dipen Patel <[email protected]> Signed-off-by: Dipen Patel <[email protected]>
2023-04-26hte: tegra: fix 'struct of_device_id' build errorArnd Bergmann1-0/+1
Without the extra #include, this driver produces a build failure in some configurations. drivers/hte/hte-tegra194-test.c:96:34: error: array type has incomplete element type 'struct of_device_id' 96 | static const struct of_device_id tegra_hte_test_of_match[] = { Fixes: 9a75a7cd03c9 ("hte: Add Tegra HTE test driver") Signed-off-by: Arnd Bergmann <[email protected]> Acked-by: Dipen Patel <[email protected]> Signed-off-by: Dipen Patel <[email protected]>
2023-04-26hte: Use of_property_present() for testing DT property presenceRob Herring1-1/+1
It is preferred to use typed property access functions (i.e. of_property_read_<type> functions) rather than low-level of_get_property/of_find_property functions for reading properties. As part of this, convert of_get_property/of_find_property calls to the recently added of_property_present() helper when we just want to test for presence of a property and nothing more. Signed-off-by: Rob Herring <[email protected]> Acked-by: Dipen Patel <[email protected]> Signed-off-by: Dipen Patel <[email protected]>
2023-04-26gpio: tegra186: Add Tegra234 hte supportDipen Patel1-0/+1
To enable timestamp support for the Tegra234, has_gte variable needs to be set true. Signed-off-by: Dipen Patel <[email protected]> Acked-by: Thierry Reding <[email protected]> Acked-by: Bartosz Golaszewski <[email protected]> Reviewed-by: Linus Walleij <[email protected]>
2023-04-26hte: handle nvidia,gpio-controller propertyDipen Patel1-7/+21
The dt binding adds nvidia,gpio-controller property from Tegra234 SoC onwards to simplify code handling gpio chip search. The gpio chip search is needed for the AON GPIO GTE instances to map the hardware timestamp GPIO request (coming from the GPIO framework) to the tegra HTE providers. The patch also adds new gpio chip match function to match from the fwnode instead of the gpio controller label. The addition of the property does not break ABI for the existing Tegra194 code. Signed-off-by: Dipen Patel <[email protected]> Reviewed-by: Linus Walleij <[email protected]>
2023-04-26hte: Deprecate nvidia,slices propertyDipen Patel1-10/+21
The relevant DT bindings deprecates nvidia,slices property from Tegra234 SoC onwards, moving the slices value per SoC data structure instead. Signed-off-by: Dipen Patel <[email protected]>
2023-04-26hte: Add Tegra234 providerDipen Patel2-5/+121
The Tegra234 AON GPIO instance and LIC IRQ support HTE. For the GPIO HTE support, it also requires to add mapping between GPIO and HTE framework same as it was done with Tegra194 SoC. Signed-off-by: Dipen Patel <[email protected]>
2023-04-26hte: Re-phrase tegra API documentDipen Patel2-18/+17
Make Tegra194 API document generic to make it applicable for current and future tegra hte providers. Signed-off-by: Dipen Patel <[email protected]> Reviewed-by: Bagas Sanjaya <[email protected]>
2023-04-26arm64: tegra: Add Tegra234 GTE nodesDipen Patel1-0/+17
Add GTE LIC and AON GPIO nodes for the tegra234 SoC. Signed-off-by: Dipen Patel <[email protected]> Acked-by: Thierry Reding <[email protected]>
2023-04-26dt-bindings: timestamp: Deprecate nvidia,slices propertyDipen Patel1-4/+4
The property is not necessary as it is a constant value and can be hardcoded in the driver code. Signed-off-by: Dipen Patel <[email protected]> Reviewed-by: Linus Walleij <[email protected]> Acked-by: Rob Herring <[email protected]>
2023-04-26dt-bindings: timestamp: Add Tegra234 supportDipen Patel1-4/+56
Added timestamp provider support for the Tegra234 in devicetree bindings. From Tegra234 SoC onwards, the nvidia,gpio-controller property is required. This is needed as the tegra always-on (AON) GPIO HTE/GTE provider depends on the AON GPIO controller where it needs to do namespace conversion between GPIO line number (belonging to AON GPIO controller instance) and the GTE slice bits. Signed-off-by: Dipen Patel <[email protected]> Reviewed-by: Krzysztof Kozlowski <[email protected]>
2023-04-26MAINTAINERS: Add HTE/timestamp subsystem detailsDipen Patel1-0/+3
Add tree, mailing list and patchwork details. Signed-off-by: Dipen Patel <[email protected]> Acked-by: Thierry Reding <[email protected]>
2023-04-26Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds317-1843/+2255
Pull SCSI updates from James Bottomley: "Updates to the usual drivers (megaraid_sas, scsi_debug, lpfc, target, mpi3mr, hisi_sas, arcmsr). The major core change is the constification of the host templates (which touches everything) along with other minor fixups and clean ups" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (207 commits) scsi: ufs: mcq: Use pointer arithmetic in ufshcd_send_command() scsi: ufs: mcq: Annotate ufshcd_inc_sq_tail() appropriately scsi: cxlflash: s/semahpore/semaphore/ scsi: lpfc: Silence an incorrect device output scsi: mpi3mr: Use IRQ save variants of spinlock to protect chain frame allocation scsi: scsi_debug: Fix missing error code in scsi_debug_init() scsi: hisi_sas: Work around build failure in suspend function scsi: lpfc: Fix ioremap issues in lpfc_sli4_pci_mem_setup() scsi: mpt3sas: Fix an issue when driver is being removed scsi: mpt3sas: Remove HBA BIOS version in the kernel log scsi: target: core: Fix invalid memory access scsi: scsi_debug: Drop sdebug_queue scsi: scsi_debug: Only allow sdebug_max_queue be modified when no shosts scsi: scsi_debug: Use scsi_host_busy() in delay_store() and ndelay_store() scsi: scsi_debug: Use blk_mq_tagset_busy_iter() in stop_all_queued() scsi: scsi_debug: Use blk_mq_tagset_busy_iter() in sdebug_blk_mq_poll() scsi: scsi_debug: Dynamically allocate sdebug_queued_cmd scsi: scsi_debug: Use scsi_block_requests() to block queues scsi: scsi_debug: Protect block_unblock_all_queues() with mutex scsi: scsi_debug: Change shost list lock to a mutex ...
2023-04-26timekeeping: Fix references to nonexistent ktime_get_fast_ns()Geert Uytterhoeven1-2/+2
There was never a function named ktime_get_fast_ns(). Presumably these should refer to ktime_get_mono_fast_ns() instead. Fixes: c1ce406e80fb15fa ("timekeeping: Fix up function documentation for the NMI safe accessors") Signed-off-by: Geert Uytterhoeven <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Acked-by: John Stultz <[email protected]> Link: https://lore.kernel.org/r/06df7b3cbd94f016403bbf6cd2b38e4368e7468f.1682516546.git.geert+renesas@glider.be
2023-04-26Merge branch 'for-6.4/wacom' into for-linusJiri Kosina3-41/+54
- improved handling of battery quirk (Jason Gerecke) - lazy initialization of battery interfaces (Jason Gerecke)
2023-04-26Merge branch 'for-6.4/tests' into for-linusJiri Kosina31-10/+8614
- import of bunch of HID selftests from out-of-tree hid-tools project (Benjamin Tissoires)
2023-04-26efi/zboot: arm64: Grab code size from ELF symbol in payloadArd Biesheuvel4-30/+21
Instead of relying on a dodgy dd hack to copy the image code size from the uncompressed image's PE header to the end of the compressed image, let's grab the code size from the symbol that is injected into the ELF object by the Kbuild rules that generate the compressed payload. Signed-off-by: Ard Biesheuvel <[email protected]> Acked-by: Mark Rutland <[email protected]>
2023-04-26Merge branch 'for-6.4/nintendo' into for-linusJiri Kosina1-9/+86
- drastically reducing Bluetooth disconnects on hid-nintendo driven devices (Daniel J. Ogorchock) - proper rumble queue overrun handling (Daniel J. Ogorchock)
2023-04-26Merge branch 'for-6.4/mcp2221' into for-linusJiri Kosina1-3/+3
- generic code improvements for mcp2221 driver (Louis Morhet)
2023-04-26Merge branch 'for-6.4/logitech-hidpp' into for-linusJiri Kosina6-7/+373
- support for ADC measurement (Bastien Nocera) - support for Logitech G935 (Bastien Nocera)
2023-04-26Merge branch 'for-6.4/led-includes' into for-linusJiri Kosina3-0/+3
- explicit include fixes (Thomas Weißschuh)
2023-04-26Merge branch 'for-6.4/kye' into for-linusJiri Kosina3-526/+421
- generic support for all Kye tablets (David Yang)
2023-04-26Merge branch 'for-6.4/i2c-hid' into for-linusJiri Kosina2-11/+33
- reset GPIO support (Hans de Goede)
2023-04-26Merge branch 'for-6.4/core' into for-linusJiri Kosina3-1/+15
- improve handling of generic "Digitizer" usage (Jason Gerecke) - support for KEY_CAMERA_FOCUS (Feng Qi)
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