- 07 Sep, 2020 3 commits
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Chris Wilson authored
We include a tasklet flush before waiting on a request as a precaution against the HW being lax in event signaling. We now have a precautionary flush in the engine's heartbeat and so do not need to be quite so zealous on every request wait. If we focus on the request, the only tasklet flush that matters is if there is a delay in submitting this request to HW, so if the request is not ready to be executed, no advantage in reducing this wait can be gained by running the tasklet. And there is little point in doing busy work for no result. Signed-off-by:
Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Reviewed-by:
Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200715115147.11866-10-chris@chris-wilson.co.ukSigned-off-by:
Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by:
Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
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Chris Wilson authored
Since we assert that the kernel_context is using the perma-pinned HWSP, make it so. Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/2179Signed-off-by:
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Chris Wilson authored
Currently, we use i915_request_completed() directly in i915_request_wait() and follow up with a manual invocation of dma_fence_signal(). This appears to cause a large number of contentions on i915_request.lock as when the process is woken up after the fence is signaled by an interrupt, we will then try and call dma_fence_signal() ourselves while the signaler is still holding the lock. dma_fence_is_signaled() has the benefit of checking the DMA_FENCE_FLAG_SIGNALED_BIT prior to calling dma_fence_signal() and so avoids most of that contention. Signed-off-by:
Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200716100754.5670-1-chris@chris-wilson.co.ukSigned-off-by:
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- 28 Aug, 2020 2 commits
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Dave Airlie authored
Merge tag 'drm-intel-next-2020-08-24-1' of git://anongit.freedesktop.org/drm/drm-intel into drm-next UAPI Changes: - Introduce a mechanism to extend execbuf2 (Lionel) - Add syncobj timeline support (Lionel) Driver Changes: - Limit stolen mem usage on the compressed frame buffer (Ville) - Some clean-up around display's cdclk (Ville) - Some DDI changes for better DP link training according to spec (Imre) - Provide the perf pmu.module (Chris) - Remove dobious Valleyview PCI IDs (Alexei) - Add new display power saving feature for gen12+ called HOBL (Jose) - Move SKL's clock gating w/a to skl_init_clock_gating() (Ville) - Rocket Lake display additions (Matt) - Selftest: temporarily downgrade on severity of frequency scaling tests (Chris) - Introduce a new display workaround for fixing FLR related issues on new PCH. (Jose) - Temporarily disable FBC on TGL. It was the culprit of random underruns. (Uma). - Copy default modparams to mock i915_device (Chris) - Add compiler paranoia for checking HWSP values (Chris) - Remove useless gen check before calling intel_rps_boost (Chris) - Fix a null pointer dereference (Chris) - Add a couple of missing i915_active_fini() (Chris) - Update TGL display power's bw_buddy table according to update spec (Matt) - Fix couple wrong return values (Tianjia) - Selftest: Avoid passing random 0 into ilog2 (George) - Many Tiger Lake display fixes and improvements for Type-C and DP compliance (Imre, Jose) - Start the addition of PSR2 selective fetch (Jose) - Update a few DMC and HuC firmware versions (Jose) - Add gen11+ w/a to fix underuns (Matt) - Fix cmd parser desc matching with mask (Mika) Signed-off-by:
Dave Airlie <airlied@redhat.com> From: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200826232733.GA129053@intel.com
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git://anongit.freedesktop.org/drm/drm-miscDave Airlie authored
drm-misc-next for 5.10: UAPI Changes: Cross-subsystem Changes: Core Changes: - ttm: various cleanups and reworks of the API Driver Changes: - ast: various cleanups - gma500: A few fixes, conversion to GPIOd API - hisilicon: Change of maintainer, various reworks - ingenic: Clock handling and formats support improvements - mcde: improvements to the DSI support - mgag200: Support G200 desktop cards - mxsfb: Support the i.MX7 and i.MX8M and the alpha plane - panfrost: support devfreq - ps8640: Retrieve the EDID from eDP control, misc improvements - tidss: Add a workaround for AM65xx YUV formats handling - virtio: a few cleanups, support for virtio-gpu exported resources - bridges: Support the chained bridges on more drivers, new bridges: Toshiba TC358762, Toshiba TC358775, Lontium LT9611 - panels: Convert to dev_ based logging, read orientation from the DT, various fixes, new panels: Mantix MLAF057WE51-X, Chefree CH101OLHLWH-002, Powertip PH800480T013, KingDisplay KD116N21-30NV-A010 Signed-off-by:
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- 27 Aug, 2020 1 commit
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Colin Ian King authored
There is a spelling mistake in a drm_warn message. Fix it. Signed-off-by:
Colin Ian King <colin.king@canonical.com> Signed-off-by:
Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20200826084727.42703-1-colin.king@canonical.com
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- 26 Aug, 2020 8 commits
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Enric Balletbo i Serra authored
Print an error message inside ps8640_bridge_vdo_control() function when it fails so we can simplify a bit the callers, they will only need to check the error code. Reviewed-by:
Sam Ravnborg <sam@ravnborg.org> Signed-off-by:
Enric Balletbo i Serra <enric.balletbo@collabora.com> Reviewed-by:
Bilal Wasim <bwasim.lkml@gmail.com> Tested-by:
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Enric Balletbo i Serra authored
Bridge drivers that implement the new model only shall return an error from their attach() handler when the DRM_BRIDGE_ATTACH_NO_CONNECTOR flag is not set. So make sure we return an error because only the new drm_bridge model is supported. Reviewed-by:
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Enric Balletbo i Serra authored
The PS8640 DSI-to-eDP bridge can retrieve the EDID, so implement the .get_edid callback and set the flag to indicate the core to use it. Reviewed-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by:
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Enric Balletbo i Serra authored
In an eDP application, HPD is not required and on most bridge chips useless. If HPD is not used, we need to set initial status as connected, otherwise the connector created by the drm_bridge_connector API remains in an unknown state. Reviewed-by:
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Tian Tao authored
Use drm_err instead of DRM_ERROR in hibmc_drm_drv Signed-off-by:
Tian Tao <tiantao6@hisilicon.com> Reviewed-by:
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Tian Tao authored
Use drm_err instead of DRM_ERROR in hibmc_drm_de Signed-off-by:
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Tian Tao authored
Use drm_err instead of DRM_ERROR in hibmc_drm_vdac Signed-off-by:
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Tian Tao authored
Use drm_err instead of DRM_ERROR in hibmc_ttm. Signed-off-by:
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- 24 Aug, 2020 3 commits
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Rodrigo Vivi authored
Signed-off-by: -
Dave Airlie authored
This is always calculated the same, and only used in a couple of places. Signed-off-by:
Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200811074658.58309-2-airlied@gmail.com
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Dave Airlie authored
The drivers all do the same thing here. Reviewed-by: Christian König <christian.koenig@amd.com> for both. Signed-off-by:
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- 23 Aug, 2020 11 commits
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linuxLinus Torvalds authored
Pull powerpc fixes from Michael Ellerman: - Add perf support for emitting extended registers for power10. - A fix for CPU hotplug on pseries, where on large/loaded systems we may not wait long enough for the CPU to be offlined, leading to crashes. - Addition of a raw cputable entry for Power10, which is not required to boot, but is required to make our PMU setup work correctly in guests. - Three fixes for the recent changes on 32-bit Book3S to move modules into their own segment for strict RWX. - A fix for a recent change in our powernv PCI code that could lead to crashes. - A change to our perf interrupt accounting to avoid soft lockups when using some events, found by syzkaller. - A change in the way we handle power loss events from the hypervisor on pseries. We no longer immediately shut down if we're told we're running on a UPS. - A few other minor fixes. Thanks to Alexey Kardashevskiy, Andreas Schwab, Aneesh Kumar K.V, Anju T Sudhakar, Athira Rajeev, Christophe Leroy, Frederic Barrat, Greg Kurz, Kajol Jain, Madhavan Srinivasan, Michael Neuling, Michael Roth, Nageswara R Sastry, Oliver O'Halloran, Thiago Jung Bauermann, Vaidyanathan Srinivasan, Vasant Hegde. * tag 'powerpc-5.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/perf/hv-24x7: Move cpumask file to top folder of hv-24x7 driver powerpc/32s: Fix module loading failure when VMALLOC_END is over 0xf0000000 powerpc/pseries: Do not initiate shutdown when system is running on UPS powerpc/perf: Fix soft lockups due to missed interrupt accounting powerpc/powernv/pci: Fix possible crash when releasing DMA resources powerpc/pseries/hotplug-cpu: wait indefinitely for vCPU death powerpc/32s: Fix is_module_segment() when MODULES_VADDR is defined powerpc/kasan: Fix KASAN_SHADOW_START on BOOK3S_32 powerpc/fixmap: Fix the size of the early debug area powerpc/pkeys: Fix build error with PPC_MEM_KEYS disabled powerpc/kernel: Cleanup machine check function declarations powerpc: Add POWER10 raw mode cputable entry powerpc/perf: Add extended regs support for power10 platform powerpc/perf: Add support for outputting extended regs in perf intr_regs powerpc: Fix P10 PVR revision in /proc/cpuinfo for SMT4 cores
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 fix from Thomas Gleixner: "A single fix for x86 which removes the RDPID usage from the paranoid entry path and unconditionally uses LSL to retrieve the CPU number. RDPID depends on MSR_TSX_AUX. KVM has an optmization to avoid expensive MRS read/writes on VMENTER/EXIT. It caches the MSR values and restores them either when leaving the run loop, on preemption or when going out to user space. MSR_TSX_AUX is part of that lazy MSR set, so after writing the guest value and before the lazy restore any exception using the paranoid entry will read the guest value and use it as CPU number to retrieve the GSBASE value for the current CPU when FSGSBASE is enabled. As RDPID is only used in that particular entry path, there is no reason to burden VMENTER/EXIT with two extra MSR writes. Remove the RDPID optimization, which is not even backed by numbers from the paranoid entry path instead" * tag 'x86-urgent-2020-08-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/entry/64: Do not use RDPID in paranoid entry to accomodate KVM
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 perf fix from Thomas Gleixner: "A single update for perf on x86 which has support for the broken down bandwith counters" * tag 'perf-urgent-2020-08-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/intel/uncore: Add BW counters for GT, IA and IO breakdown
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull EFI fixes from Thomas Gleixner: - Enforce NX on RO data in mixed EFI mode - Destroy workqueue in an error handling path to prevent UAF - Stop argument parser at '--' which is the delimiter for init - Treat a NULL command line pointer as empty instead of dereferncing it unconditionally. - Handle an unterminated command line correctly - Cleanup the 32bit code leftovers and remove obsolete documentation * tag 'efi-urgent-2020-08-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: Documentation: efi: remove description of efi=old_map efi/x86: Move 32-bit code into efi_32.c efi/libstub: Handle unterminated cmdline efi/libstub: Handle NULL cmdline efi/libstub: Stop parsing arguments at "--" efi: add missed destroy_workqueue when efisubsys_init fails efi/x86: Mark kernel rodata non-executable for mixed mode
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull entry fix from Thomas Gleixner: "A single bug fix for the common entry code. The transcription of the x86 version messed up the reload of the syscall number from pt_regs after ptrace and seccomp which breaks syscall number rewriting" * tag 'core-urgent-2020-08-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: core/entry: Respect syscall number rewrites
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git://git.kernel.org/pub/scm/linux/kernel/git/ras/rasLinus Torvalds authored
Pull EDAC fix from Borislav Petkov: "A single fix correcting a reversed error severity determination check which lead to a recoverable error getting marked as fatal, by Tony Luck" * tag 'edac_urgent_for_v5.9_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras: EDAC/{i7core,sb,pnd2,skx}: Fix error event severity
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds authored
Pull networking fixes from David Miller: "Nothing earth shattering here, lots of small fixes (f.e. missing RCU protection, bad ref counting, missing memset(), etc.) all over the place: 1) Use get_file_rcu() in task_file iterator, from Yonghong Song. 2) There are two ways to set remote source MAC addresses in macvlan driver, but only one of which validates things properly. Fix this. From Alvin Šipraga. 3) Missing of_node_put() in gianfar probing, from Sumera Priyadarsini. 4) Preserve device wanted feature bits across multiple netlink ethtool requests, from Maxim Mikityanskiy. 5) Fix rcu_sched stall in task and task_file bpf iterators, from Yonghong Song. 6) Avoid reset after device destroy in ena driver, from Shay Agroskin. 7) Missing memset() in netlink policy export reallocation path, from Johannes Berg. 8) Fix info leak in __smc_diag_dump(), from Peilin Ye. 9) Decapsulate ECN properly for ipv6 in ipv4 tunnels, from Mark Tomlinson. 10) Fix number of data stream negotiation in SCTP, from David Laight. 11) Fix double free in connection tracker action module, from Alaa Hleihel. 12) Don't allow empty NHA_GROUP attributes, from Nikolay Aleksandrov" * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (46 commits) net: nexthop: don't allow empty NHA_GROUP bpf: Fix two typos in uapi/linux/bpf.h net: dsa: b53: check for timeout tipc: call rcu_read_lock() in tipc_aead_encrypt_done() net/sched: act_ct: Fix skb double-free in tcf_ct_handle_fragments() error flow net: sctp: Fix negotiation of the number of data streams. dt-bindings: net: renesas, ether: Improve schema validation gre6: Fix reception with IP6_TNL_F_RCV_DSCP_COPY hv_netvsc: Fix the queue_mapping in netvsc_vf_xmit() hv_netvsc: Remove "unlikely" from netvsc_select_queue bpf: selftests: global_funcs: Check err_str before strstr bpf: xdp: Fix XDP mode when no mode flags specified selftests/bpf: Remove test_align leftovers tools/resolve_btfids: Fix sections with wrong alignment net/smc: Prevent kernel-infoleak in __smc_diag_dump() sfc: fix build warnings on 32-bit net: phy: mscc: Fix a couple of spelling mistakes "spcified" -> "specified" libbpf: Fix map index used in error message net: gemini: Fix missing free_netdev() in error path of gemini_ethernet_port_probe() net: atlantic: Use readx_poll_timeout() for large timeout ... -
Nadezda Lutovinova authored
If ge_b850v3_lvds_init() does not allocate memory for ge_b850v3_lvds_ptr, then a null pointer dereference is accessed. The patch adds checking of the return value of ge_b850v3_lvds_init(). Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by:
Nadezda Lutovinova <lutovinova@ispras.ru> Signed-off-by:
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Vinay Simha BN authored
passing zero to 'PTR_ERR' Reported-by:
kernel test robot <lkp@intel.com> Signed-off-by:
Vinay Simha BN <simhavcs@gmail.com> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds authored
Pull epoll fixes from Al Viro: "Fix reference counting and clean up exit paths" * 'work.epoll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: do_epoll_ctl(): clean the failure exits up a bit epoll: Keep a reference on files added to the check list
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- 22 Aug, 2020 9 commits
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Al Viro authored
Signed-off-by:Al Viro <viro@zeniv.linux.org.uk>
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Marc Zyngier authored
When adding a new fd to an epoll, and that this new fd is an epoll fd itself, we recursively scan the fds attached to it to detect cycles, and add non-epool files to a "check list" that gets subsequently parsed. However, this check list isn't completely safe when deletions can happen concurrently. To sidestep the issue, make sure that a struct file placed on the check list sees its f_count increased, ensuring that a concurrent deletion won't result in the file disapearing from under our feet. Cc: stable@vger.kernel.org Signed-off-by:
Marc Zyngier <maz@kernel.org> Signed-off-by:
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Nikolay Aleksandrov authored
Currently the nexthop code will use an empty NHA_GROUP attribute, but it requires at least 1 entry in order to function properly. Otherwise we end up derefencing null or random pointers all over the place due to not having any nh_grp_entry members allocated, nexthop code relies on having at least the first member present. Empty NHA_GROUP doesn't make any sense so just disallow it. Also add a WARN_ON for any future users of nexthop_create_group(). BUG: kernel NULL pointer dereference, address: 0000000000000080 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] SMP CPU: 0 PID: 558 Comm: ip Not tainted 5.9.0-rc1+ #93 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-2.fc32 04/01/2014 RIP: 0010:fib_check_nexthop+0x4a/0xaa Code: 0f 84 83 00 00 00 48 c7 02 80 03 f7 81 c3 40 80 fe fe 75 12 b8 ea ff ff ff 48 85 d2 74 6b 48 c7 02 40 03 f7 81 c3 48 8b 40 10 <48> 8b 80 80 00 00 00 eb 36 80 78 1a 00 74 12 b8 ea ff ff ff 48 85 RSP: 0018:ffff88807983ba00 EFLAGS: 00010213 RAX: 0000000000000000 RBX: ffff88807983bc00 RCX: 0000000000000000 RDX: ffff88807983bc00 RSI: 0000000000000000 RDI: ffff88807bdd0a80 RBP: ffff88807983baf8 R08: 0000000000000dc0 R09: 000000000000040a R10: 0000000000000000 R11: ffff88807bdd0ae8 R12: 0000000000000000 R13: 0000000000000000 R14: ffff88807bea3100 R15: 0000000000000001 FS: 00007f10db393700(0000) GS:ffff88807dc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000080 CR3: 000000007bd0f004 CR4: 00000000003706f0 Call Trace: fib_create_info+0x64d/0xaf7 fib_table_insert+0xf6/0x581 ? __vma_adjust+0x3b6/0x4d4 inet_rtm_newroute+0x56/0x70 rtnetlink_rcv_msg+0x1e3/0x20d ? rtnl_calcit.isra.0+0xb8/0xb8 netlink_rcv_skb+0x5b/0xac netlink_unicast+0xfa/0x17b netlink_sendmsg+0x334/0x353 sock_sendmsg_nosec+0xf/0x3f ____sys_sendmsg+0x1a0/0x1fc ? copy_msghdr_from_user+0x4c/0x61 ___sys_sendmsg+0x63/0x84 ? handle_mm_fault+0xa39/0x11b5 ? sockfd_lookup_light+0x72/0x9a __sys_sendmsg+0x50/0x6e do_syscall_64+0x54/0xbe entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f10dacc0bb7 Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb cd 66 0f 1f 44 00 00 8b 05 9a 4b 2b 00 85 c0 75 2e 48 63 ff 48 63 d2 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 8b 15 b1 f2 2a 00 f7 d8 64 89 02 48 RSP: 002b:00007ffcbe628bf8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007ffcbe628f80 RCX: 00007f10dacc0bb7 RDX: 0000000000000000 RSI: 00007ffcbe628c60 RDI: 0000000000000003 RBP: 000000005f41099c R08: 0000000000000001 R09: 0000000000000008 R10: 00000000000005e9 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007ffcbe628d70 R15: 0000563a86c6e440 Modules linked in: CR2: 0000000000000080 CC: David Ahern <dsahern@gmail.com> Fixes: 430a0491 ("nexthop: Add support for nexthop groups") Reported-by: syzbot+a61aa19b0c14c8770bd9@syzkaller.appspotmail.com Signed-off-by:
Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Reviewed-by:
David Ahern <dsahern@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Linus Torvalds authored
Merge tag 'kbuild-fixes-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild fixes from Masahiro Yamada: - move -Wsign-compare warning from W=2 to W=3 - fix the keyword _restrict to __restrict in genksyms - fix more bugs in qconf * tag 'kbuild-fixes-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: kconfig: qconf: replace deprecated QString::sprintf() with QTextStream kconfig: qconf: remove redundant help in the info view kconfig: qconf: remove qInfo() to get back Qt4 support kconfig: qconf: remove unused colNr kconfig: qconf: fix the popup menu in the ConfigInfoView window kconfig: qconf: fix signal connection to invalid slots genksyms: keywords: Use __restrict not _restrict kbuild: remove redundant patterns in filter/filter-out extract-cert: add static to local data Makefile.extrawarn: Move sign-compare from W=2 to W=3
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linuxLinus Torvalds authored
Pull arm64 fixes from Catalin Marinas: - Allow booting of late secondary CPUs affected by erratum 1418040 (currently they are parked if none of the early CPUs are affected by this erratum). - Add the 32-bit vdso Makefile to the vdso_install rule so that 'make vdso_install' installs the 32-bit compat vdso when it is compiled. - Print a warning that untrusted guests without a CPU erratum workaround (Cortex-A57 832075) may deadlock the affected system. * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: ARM64: vdso32: Install vdso32 from vdso_install KVM: arm64: Print warning when cpu erratum can cause guests to deadlock arm64: Allow booting of late CPUs affected by erratum 1418040 arm64: Move handling of erratum 1418040 into C code
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linuxLinus Torvalds authored
Pull s390 fixes from Vasily Gorbik: - a couple of fixes for storage key handling relevant for debugging - add cond_resched into potentially slow subchannels scanning loop - fixes for PF/VF linking and to ignore stale PCI configuration request events * tag 's390-5.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/pci: fix PF/VF linking on hot plug s390/pci: re-introduce zpci_remove_device() s390/pci: fix zpci_bus_link_virtfn() s390/ptrace: fix storage key handling s390/runtime_instrumentation: fix storage key handling s390/pci: ignore stale configuration request event s390/cio: add cond_resched() in the slow_eval_known_fn() loop
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git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds authored
Pull kvm fixes from Paolo Bonzini: - PAE and PKU bugfixes for x86 - selftests fix for new binutils - MMU notifier fix for arm64 * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: arm64: Only reschedule if MMU_NOTIFIER_RANGE_BLOCKABLE is not set KVM: Pass MMU notifier range flags to kvm_unmap_hva_range() kvm: x86: Toggling CR4.PKE does not load PDPTEs in PAE mode kvm: x86: Toggling CR4.SMAP does not load PDPTEs in PAE mode KVM: x86: fix access code passed to gva_to_gpa selftests: kvm: Use a shorter encoding to clear RAX
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds authored
Pull SCSI fixes from James Bottomley: "23 fixes in 5 drivers (qla2xxx, ufs, scsi_debug, fcoe, zfcp). The bulk of the changes are in qla2xxx and ufs and all are mostly small and definitely don't impact the core" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (23 commits) Revert "scsi: qla2xxx: Disable T10-DIF feature with FC-NVMe during probe" Revert "scsi: qla2xxx: Fix crash on qla2x00_mailbox_command" scsi: qla2xxx: Fix null pointer access during disconnect from subsystem scsi: qla2xxx: Check if FW supports MQ before enabling scsi: qla2xxx: Fix WARN_ON in qla_nvme_register_hba scsi: qla2xxx: Allow ql2xextended_error_logging special value 1 to be set anytime scsi: qla2xxx: Reduce noisy debug message scsi: qla2xxx: Fix login timeout scsi: qla2xxx: Indicate correct supported speeds for Mezz card scsi: qla2xxx: Flush I/O on zone disable scsi: qla2xxx: Flush all sessions on zone disable scsi: qla2xxx: Use MBX_TOV_SECONDS for mailbox command timeout values scsi: scsi_debug: Fix scp is NULL errors scsi: zfcp: Fix use-after-free in request timeout handlers scsi: ufs: No need to send Abort Task if the task in DB was cleared scsi: ufs: Clean up completed request without interrupt notification scsi: ufs: Improve interrupt handling for shared interrupts scsi: ufs: Fix interrupt error message for shared interrupts scsi: ufs-pci: Add quirk for broken auto-hibernate for Intel EHL scsi: ufs-mediatek: Fix incorrect time to wait link status ...
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git://git.kernel.org/pub/scm/linux/kernel/git/robh/linuxLinus Torvalds authored
Pull devicetree fixes from Rob Herring: "Another set of DT fixes: - restore range parsing error check - workaround PCI range parsing with missing 'device_type' now required - correct description of 'phy-connection-type' - fix erroneous matching on 'snps,dw-pcie' by 'intel,lgm-pcie' schema - a couple of grammar and whitespace fixes - update Shawn Guo's email" * tag 'devicetree-fixes-for-5.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: dt-bindings: vendor-prefixes: Remove trailing whitespace dt-bindings: net: correct description of phy-connection-type dt-bindings: PCI: intel,lgm-pcie: Fix matching on all snps,dw-pcie instances of: address: Work around missing device_type property in pcie nodes dt: writing-schema: Miscellaneous grammar fixes dt-bindings: Use Shawn Guo's preferred e-mail for i.MX bindings of/address: check for invalid range.cpu_addr
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- 21 Aug, 2020 3 commits
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Geert Uytterhoeven authored
Fixes: f516fb70 ("dt-bindings: Whitespace clean-ups in schema files") Signed-off-by:
Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20200819092058.1526-1-geert+renesas@glider.beSigned-off-by:
Rob Herring <robh@kernel.org>
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Will Deacon authored
When an MMU notifier call results in unmapping a range that spans multiple PGDs, we end up calling into cond_resched_lock() when crossing a PGD boundary, since this avoids running into RCU stalls during VM teardown. Unfortunately, if the VM is destroyed as a result of OOM, then blocking is not permitted and the call to the scheduler triggers the following BUG(): | BUG: sleeping function called from invalid context at arch/arm64/kvm/mmu.c:394 | in_atomic(): 1, irqs_disabled(): 0, non_block: 1, pid: 36, name: oom_reaper | INFO: lockdep is turned off. | CPU: 3 PID: 36 Comm: oom_reaper Not tainted 5.8.0 #1 | Hardware name: QEMU QEMU Virtual Machine, BIOS 0.0.0 02/06/2015 | Call trace: | dump_backtrace+0x0/0x284 | show_stack+0x1c/0x28 | dump_stack+0xf0/0x1a4 | ___might_sleep+0x2bc/0x2cc | unmap_stage2_range+0x160/0x1ac | kvm_unmap_hva_range+0x1a0/0x1c8 | kvm_mmu_notifier_invalidate_range_start+0x8c/0xf8 | __mmu_notifier_invalidate_range_start+0x218/0x31c | mmu_notifier_invalidate_range_start_nonblock+0x78/0xb0 | __oom_reap_task_mm+0x128/0x268 | oom_reap_task+0xac/0x298 | oom_reaper+0x178/0x17c | kthread+0x1e4/0x1fc | ret_from_fork+0x10/0x30 Use the new 'flags' argument to kvm_unmap_hva_range() to ensure that we only reschedule if MMU_NOTIFIER_RANGE_BLOCKABLE is set in the notifier flags. Cc: <stable@vger.kernel.org> Fixes: 8b3405e3 ("kvm: arm/arm64: Fix locking for kvm_free_stage2_pgd") Cc: Marc Zyngier <maz@kernel.org> Cc: Suzuki K Poulose <suzuki.poulose@arm.com> Cc: James Morse <james.morse@arm.com> Signed-off-by:
Will Deacon <will@kernel.org> Message-Id: <20200811102725.7121-3-will@kernel.org> Signed-off-by:
Paolo Bonzini <pbonzini@redhat.com>
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Will Deacon authored
The 'flags' field of 'struct mmu_notifier_range' is used to indicate whether invalidate_range_{start,end}() are permitted to block. In the case of kvm_mmu_notifier_invalidate_range_start(), this field is not forwarded on to the architecture-specific implementation of kvm_unmap_hva_range() and therefore the backend cannot sensibly decide whether or not to block. Add an extra 'flags' parameter to kvm_unmap_hva_range() so that architectures are aware as to whether or not they are permitted to block. Cc: <stable@vger.kernel.org> Cc: Marc Zyngier <maz@kernel.org> Cc: Suzuki K Poulose <suzuki.poulose@arm.com> Cc: James Morse <james.morse@arm.com> Signed-off-by:
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