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2021-03-15arm64: dts: imx8mm: Add Engicam i.Core MX8M Mini SoMJagan Teki
i.Core MX8M Mini is an EDIMM SoM based on NXP i.MX8M Mini from Engicam. General features: - NXP i.MX8M Mini - Up to 2GB LDDR4 - 8/16GB eMMC - Gigabit Ethernet - USB 2.0 Host/OTG - PCIe Gen2 interface - I2S - MIPI DSI to LVDS - rest of i.MX8M Mini features i.Core MX8M Mini needs to mount on top of Engicam baseboards for creating complete platform solutions. Add support for it. Signed-off-by: Matteo Lisi <matteo.lisi@engicam.com> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-15arm64: dts: imx8qxp: correct usdhc clock-names sequencePeng Fan
Per dt-bindings, the clock-names sequence should be ipg ahb per to pass dtbs_check. Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-15arm64: dts: imx8mm-nitrogen-r2: add audioAdrien Grassein
Add audio description and pin muxing. Signed-off-by: Adrien Grassein <adrien.grassein@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-15arm64: dts: imx8mm-nitrogen-r2: add FlexSPIAdrien Grassein
Add FlexSPI description an pin muxing. Signed-off-by: Adrien Grassein <adrien.grassein@gmail.com> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-15arm64: dts: imx8mm-nitrogen-r2: add PWMsAdrien Grassein
Add description for the four PWMs. Signed-off-by: Adrien Grassein <adrien.grassein@gmail.com> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-15arm64: dts: imx8mm-nitrogen-r2: rework UART 2Adrien Grassein
Remove useless clocks in UART 2 Signed-off-by: Adrien Grassein <adrien.grassein@gmail.com> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-15arm64: dts: imx8mm-nitrogen-r2: add UARTsAdrien Grassein
Add description and pin muxing for UARTs. Signed-off-by: Adrien Grassein <adrien.grassein@gmail.com> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-15arm64: dts: imx8mm-nitrogen-r2: add USB supportAdrien Grassein
Add description of USB. usbotg2 seems to not working on all boards (including ones from variscite). Signed-off-by: Adrien Grassein <adrien.grassein@gmail.com> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-15arm64: dts: imx8mm-nitrogen-r2: rework USDHC1Adrien Grassein
Add VMMC and VQMMC description for USDHC1 (eMMC). There are comming directly from the alimentation stage, so add the vref_3V3 fixed regulator. Signed-off-by: Adrien Grassein <adrien.grassein@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-15arm64: dts: imx8mm-nitrogen-r2: add wifi/bt chipAdrien Grassein
Add usdhc3 description which corresponds to the wifi/bt chip Signed-off-by: Adrien Grassein <adrien.grassein@gmail.com> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-15arm64: dts: librem5-devkit: Move headphone detection to sound cardGuido Günther
This allows for automatic output source switching in userspace. Enable the pullup on the GPIO to actually make it trigger and mark it as active-high since detection is reversed otherwise. Signed-off-by: Guido Günther <agx@sigxcpu.org> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-15arm64: dts: librem5-devkit: Add mux for built-in vs headset micGuido Günther
Add mux so we can select either headset or built-in microphone input. Signed-off-by: Guido Günther <agx@sigxcpu.org> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-15arm64: dts: librem5-devkit: "Drop Line In Jack"Guido Günther
The SGTL500s LINEINL and LINEINR are N/C. Signed-off-by: Guido Günther <agx@sigxcpu.org> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-15arm64: dts: librem5-devkit: Add speaker amplifierGuido Günther
Wire up the amplifier that drives the builtin speaker. Signed-off-by: Guido Günther <agx@sigxcpu.org> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-15arm64: dts: librem5-devkit: Use a less generic codec nameGuido Günther
The codec is currently named after the chip but it should be named like the device itself since otherwise it's impossible to distinguish it from other devices using the same codec (e.g. in alsa's UCM). Signed-off-by: Guido Günther <agx@sigxcpu.org> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-15arm64: dts: imx8mq-librem5-r2: set nearlevel to 120Martin Kepplinger
On Birch I can never reach 220 and hence the display would never turn off. Tests suggest 120 to be a good threshold value for all Birch devices. Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-15arm64: dts: librem5: protect some partitions of the nor-flashAngus Ainslie
These sections should be read only as they contain important data. Signed-off-by: Angus Ainslie <angus@akkea.ca> Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-15arm64: dts: librem5: Drop assigned-clocks from SAI2Guido Günther
IMX8MQ_AUDIO_PLL1 and IMX8MQ_AUDIO_PLL2 are setup to the same rates right on the clock controller. Signed-off-by: Guido Günther <agx@sigxcpu.org> Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-15arm64: dts: imx8mq-librem5-devkit: Drop buck3 startup-ramp-delayGuido Günther
The PMIC driver now sets appropriate default delays. Signed-off-by: Guido Günther <agx@sigxcpu.org> Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-15arm64: dts: imx8mn-beacon: Enable SDR104 on WiFi SDIO interfaceAdam Ford
Enable 100Mhz and 200MHz pinmux and corrsesponding voltage supplies to enable SDR104 on usdhc1 connecting the WiFi chip. Signed-off-by: Adam Ford <aford173@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-15arm64: dts: ls1028a: add interrupt to Root Complex Event CollectorMichael Walle
The legacy interrupt INT_A is hardwired to the event collector. RCEC is bascially supported starting with v5.11. Having a correct interrupt, will make RCEC at least probe correctly. There are still issues with how RCEC is implemented in the RCiEP on the LS1028A. RCEC will report an error, but it cannot find the correct subdevice. Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com> Tested-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-15arm64: dts: imx8mm-nitrogen-r2: Pass the i2c3 unit nameFabio Estevam
Pass the i2c3 unit name to fix the following W=1 build warning: arch/arm64/boot/dts/freescale/imx8mm-nitrogen-r2.dts:159.8-172.5: Warning (unit_address_vs_reg): /soc@0/bus@30800000/i2c@30a40000/i2cmux@70/i2c3: node has a reg or ranges property, but no unit name Signed-off-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-04Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull KVM fixes from Paolo Bonzini: - Doc fixes - selftests fixes - Add runstate information to the new Xen support - Allow compiling out the Xen interface - 32-bit PAE without EPT bugfix - NULL pointer dereference bugfix * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: SVM: Clear the CR4 register on reset KVM: x86/xen: Add support for vCPU runstate information KVM: x86/xen: Fix return code when clearing vcpu_info and vcpu_time_info selftests: kvm: Mmap the entire vcpu mmap area KVM: Documentation: Fix index for KVM_CAP_PPC_DAWR1 KVM: x86: allow compiling out the Xen hypercall interface KVM: xen: flush deferred static key before checking it KVM: x86/mmu: Set SPTE_AD_WRPROT_ONLY_MASK if and only if PML is enabled KVM: x86: hyper-v: Fix Hyper-V context null-ptr-deref KVM: x86: remove misplaced comment on active_mmu_pages KVM: Documentation: rectify rst markup in kvm_run->flags Documentation: kvm: fix messy conversion from .txt to .rst
2021-03-04Merge tag 'for-linus-5.12b-rc2-tag' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen fixes from Juergen Gross: "Two security issues (XSA-367 and XSA-369)" * tag 'for-linus-5.12b-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen: fix p2m size in dom0 for disabled memory hotplug case xen-netback: respect gnttab_map_refs()'s return value Xen/gnttab: handle p2m update errors on a per-slot basis
2021-03-03xen: fix p2m size in dom0 for disabled memory hotplug caseJuergen Gross
Since commit 9e2369c06c8a18 ("xen: add helpers to allocate unpopulated memory") foreign mappings are using guest physical addresses allocated via ZONE_DEVICE functionality. This will result in problems for the case of no balloon memory hotplug being configured, as the p2m list will only cover the initial memory size of the domain. Any ZONE_DEVICE allocated address will be outside the p2m range and thus a mapping can't be established with that memory address. Fix that by extending the p2m size for that case. At the same time add a check for a to be created mapping to be within the p2m limits in order to detect errors early. While changing a comment, remove some 32-bit leftovers. This is XSA-369. Fixes: 9e2369c06c8a18 ("xen: add helpers to allocate unpopulated memory") Cc: <stable@vger.kernel.org> # 5.9 Reported-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com> Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Jan Beulich <jbeulich@suse.com> Signed-off-by: Juergen Gross <jgross@suse.com>
2021-03-03Xen/gnttab: handle p2m update errors on a per-slot basisJan Beulich
Bailing immediately from set_foreign_p2m_mapping() upon a p2m updating error leaves the full batch in an ambiguous state as far as the caller is concerned. Instead flags respective slots as bad, unmapping what was mapped there right away. HYPERVISOR_grant_table_op()'s return value and the individual unmap slots' status fields get used only for a one-time - there's not much we can do in case of a failure. Note that there's no GNTST_enomem or alike, so GNTST_general_error gets used. The map ops' handle fields get overwritten just to be on the safe side. This is part of XSA-367. Cc: <stable@vger.kernel.org> Signed-off-by: Jan Beulich <jbeulich@suse.com> Reviewed-by: Juergen Gross <jgross@suse.com> Link: https://lore.kernel.org/r/96cccf5d-e756-5f53-b91a-ea269bfb9be0@suse.com Signed-off-by: Juergen Gross <jgross@suse.com>
2021-03-02ia64: don't call handle_signal() unless there's actually a signal queuedJens Axboe
Sergei and John both reported that ia64 failed to boot in 5.11, and it was related to signals. Turns out the ia64 signal handling is a bit odd, it doesn't check the return value of get_signal() for whether there's a signal to deliver or not. With the introduction of TIF_NOTIFY_SIGNAL, then task_work could trigger it. Fix it by only calling handle_signal() if we actually have a real signal to deliver. This brings it in line with all other archs, too. Fixes: b269c229b0e8 ("ia64: add support for TIF_NOTIFY_SIGNAL") Reported-by: Sergei Trofimovich <slyich@gmail.com> Reported-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Tested-by: Sergei Trofimovich <slyich@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-03-02KVM: SVM: Clear the CR4 register on resetBabu Moger
This problem was reported on a SVM guest while executing kexec. Kexec fails to load the new kernel when the PCID feature is enabled. When kexec starts loading the new kernel, it starts the process by resetting the vCPU's and then bringing each vCPU online one by one. The vCPU reset is supposed to reset all the register states before the vCPUs are brought online. However, the CR4 register is not reset during this process. If this register is already setup during the last boot, all the flags can remain intact. The X86_CR4_PCIDE bit can only be enabled in long mode. So, it must be enabled much later in SMP initialization. Having the X86_CR4_PCIDE bit set during SMP boot can cause a boot failures. Fix the issue by resetting the CR4 register in init_vmcb(). Signed-off-by: Babu Moger <babu.moger@amd.com> Message-Id: <161471109108.30811.6392805173629704166.stgit@bmoger-ubuntu> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-03-02KVM: x86/xen: Add support for vCPU runstate informationDavid Woodhouse
This is how Xen guests do steal time accounting. The hypervisor records the amount of time spent in each of running/runnable/blocked/offline states. In the Xen accounting, a vCPU is still in state RUNSTATE_running while in Xen for a hypercall or I/O trap, etc. Only if Xen explicitly schedules does the state become RUNSTATE_blocked. In KVM this means that even when the vCPU exits the kvm_run loop, the state remains RUNSTATE_running. The VMM can explicitly set the vCPU to RUNSTATE_blocked by using the KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_CURRENT attribute, and can also use KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_ADJUST to retrospectively add a given amount of time to the blocked state and subtract it from the running state. The state_entry_time corresponds to get_kvmclock_ns() at the time the vCPU entered the current state, and the total times of all four states should always add up to state_entry_time. Co-developed-by: Joao Martins <joao.m.martins@oracle.com> Signed-off-by: Joao Martins <joao.m.martins@oracle.com> Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Message-Id: <20210301125309.874953-2-dwmw2@infradead.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-03-02KVM: x86/xen: Fix return code when clearing vcpu_info and vcpu_time_infoDavid Woodhouse
When clearing the per-vCPU shared regions, set the return value to zero to indicate success. This was causing spurious errors to be returned to userspace on soft reset. Also add a paranoid BUILD_BUG_ON() for compat structure compatibility. Fixes: 0c165b3c01fe ("KVM: x86/xen: Allow reset of Xen attributes") Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Message-Id: <20210301125309.874953-1-dwmw2@infradead.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-03-02KVM: x86: allow compiling out the Xen hypercall interfacePaolo Bonzini
The Xen hypercall interface adds to the attack surface of the hypervisor and will be used quite rarely. Allow compiling it out. Suggested-by: Christoph Hellwig <hch@lst.de> Reviewed-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-02-28Merge tag 'kbuild-fixes-v5.12' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild fixes from Masahiro Yamada: - Fix UNUSED_KSYMS_WHITELIST for Clang LTO - Make -s builds really silent irrespective of V= option - Fix build error when SUBLEVEL or PATCHLEVEL is empty * tag 'kbuild-fixes-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: kbuild: Fix <linux/version.h> for empty SUBLEVEL or PATCHLEVEL again kbuild: make -s option take precedence over V=1 ia64: remove redundant READELF from arch/ia64/Makefile kbuild: do not include include/config/auto.conf from adjust_autoksyms.sh kbuild: fix UNUSED_KSYMS_WHITELIST for Clang LTO kbuild: lto: add _mcount to list of used symbols
2021-02-28Merge tag 'csky-for-linus-5.12-rc1' of git://github.com/c-sky/csky-linuxLinus Torvalds
Pull arch/csky updates from Guo Ren: "Features: - add new memory layout 2.5G(user):1.5G(kernel) - add kmemleak support - reconstruct VDSO framework: add VDSO with GENERIC_GETTIMEOFDAY, GENERIC_TIME_VSYSCALL, HAVE_GENERIC_VDSO - add faulthandler_disabled() check - support (fix) swapon - add (fix) _PAGE_ACCESSED for default pgprot - abort uaccess retries upon fatal signal (from arm) Fixes and optimizations: - fix perf probe failure - fix show_regs doesn't contain regs->usp - remove custom asm/atomic.h implementation - fix barrier design - fix futex SMP implementation - fix asm/cmpxchg.h with correct ordering barrier - cleanup asm/spinlock.h - fix PTE global for 2.5:1.5 virtual memory - remove prologue of page fault handler in entry.S - fix TLB maintenance synchronization problem - add show_tlb for CPU_CK860 debug - fix FAULT_FLAG_XXX param for handle_mm_fault - fix update_mmu_cache called with user io mapping - fix do_page_fault parent irq status - fix a size determination in gpr_get() - pgtable.h: Coding convention - kprobe: Fix code in simulate without 'long' - fix pfn_valid error with wrong max_mapnr - use free_initmem_default() in free_initmem() - fix compile error" * tag 'csky-for-linus-5.12-rc1' of git://github.com/c-sky/csky-linux: (30 commits) csky: Fixup compile error csky: use free_initmem_default() in free_initmem() csky: Fixup pfn_valid error with wrong max_mapnr csky: Add VDSO with GENERIC_GETTIMEOFDAY, GENERIC_TIME_VSYSCALL, HAVE_GENERIC_VDSO csky: kprobe: Fixup code in simulate without 'long' csky: Fixup swapon csky: pgtable.h: Coding convention csky: Fixup _PAGE_ACCESSED for default pgprot csky: remove unused including <linux/version.h> csky: Fix a size determination in gpr_get() csky: Reconstruct VDSO framework csky: mm: abort uaccess retries upon fatal signal csky: Sync riscv mm/fault.c for easy maintenance csky: Fixup do_page_fault parent irq status csky: Add faulthandler_disabled() check csky: Fixup update_mmu_cache called with user io mapping csky: Fixup FAULT_FLAG_XXX param for handle_mm_fault csky: Add show_tlb for CPU_CK860 debug csky: Fix TLB maintenance synchronization problem csky: Add kmemleak support ...
2021-02-28Merge tag 'riscv-for-linus-5.12-mw1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull more RISC-V updates from Palmer Dabbelt: "A pair of patches that slipped through the cracks: - enable CPU hotplug in the defconfigs - some cleanups to setup_bootmem There's also a single fix for some randconfig build failures: - make NUMA depend on SMP" * tag 'riscv-for-linus-5.12-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: riscv: Cleanup setup_bootmem() RISC-V: Enable CPU Hotplug in defconfigs RISC-V: Make NUMA depend on SMP
2021-02-28ia64: remove redundant READELF from arch/ia64/MakefileMasahiro Yamada
READELF is defined by the top Makefile. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2021-02-27Merge tag 'io_uring-worker.v3-2021-02-25' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull io_uring thread rewrite from Jens Axboe: "This converts the io-wq workers to be forked off the tasks in question instead of being kernel threads that assume various bits of the original task identity. This kills > 400 lines of code from io_uring/io-wq, and it's the worst part of the code. We've had several bugs in this area, and the worry is always that we could be missing some pieces for file types doing unusual things (recent /dev/tty example comes to mind, userfaultfd reads installing file descriptors is another fun one... - both of which need special handling, and I bet it's not the last weird oddity we'll find). With these identical workers, we can have full confidence that we're never missing anything. That, in itself, is a huge win. Outside of that, it's also more efficient since we're not wasting space and code on tracking state, or switching between different states. I'm sure we're going to find little things to patch up after this series, but testing has been pretty thorough, from the usual regression suite to production. Any issue that may crop up should be manageable. There's also a nice series of further reductions we can do on top of this, but I wanted to get the meat of it out sooner rather than later. The general worry here isn't that it's fundamentally broken. Most of the little issues we've found over the last week have been related to just changes in how thread startup/exit is done, since that's the main difference between using kthreads and these kinds of threads. In fact, if all goes according to plan, I want to get this into the 5.10 and 5.11 stable branches as well. That said, the changes outside of io_uring/io-wq are: - arch setup, simple one-liner to each arch copy_thread() implementation. - Removal of net and proc restrictions for io_uring, they are no longer needed or useful" * tag 'io_uring-worker.v3-2021-02-25' of git://git.kernel.dk/linux-block: (30 commits) io-wq: remove now unused IO_WQ_BIT_ERROR io_uring: fix SQPOLL thread handling over exec io-wq: improve manager/worker handling over exec io_uring: ensure SQPOLL startup is triggered before error shutdown io-wq: make buffered file write hashed work map per-ctx io-wq: fix race around io_worker grabbing io-wq: fix races around manager/worker creation and task exit io_uring: ensure io-wq context is always destroyed for tasks arch: ensure parisc/powerpc handle PF_IO_WORKER in copy_thread() io_uring: cleanup ->user usage io-wq: remove nr_process accounting io_uring: flag new native workers with IORING_FEAT_NATIVE_WORKERS net: remove cmsg restriction from io_uring based send/recvmsg calls Revert "proc: don't allow async path resolution of /proc/self components" Revert "proc: don't allow async path resolution of /proc/thread-self components" io_uring: move SQPOLL thread io-wq forked worker io-wq: make io_wq_fork_thread() available to other users io-wq: only remove worker from free_list, if it was there io_uring: remove io_identity io_uring: remove any grabbing of context ...
2021-02-27Merge branch 'work.misc' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull misc vfs updates from Al Viro: "Assorted stuff pile - no common topic here" * 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: whack-a-mole: don't open-code iminor/imajor 9p: fix misuse of sscanf() in v9fs_stat2inode() audit_alloc_mark(): don't open-code ERR_CAST() fs/inode.c: make inode_init_always() initialize i_ino to 0 vfs: don't unnecessarily clone write access for writable fds
2021-02-27csky: Fixup compile errorGuo Ren
: error: C++ style comments are not allowed in ISO C90 // Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd. ^ error: (this will be reported only once per input file) Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
2021-02-27csky: use free_initmem_default() in free_initmem()David Hildenbrand
The existing code is essentially free_initmem_default()->free_reserved_area() without poisoning. Note that existing code missed to update the managed page count of the zone. Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Mike Rapoport <rppt@kernel.org> Cc: Oscar Salvador <osalvador@suse.de> Cc: Michal Hocko <mhocko@kernel.org> Cc: Wei Yang <richard.weiyang@linux.alibaba.com> Tested-by: Guo Ren <guoren@kernel.org> Signed-off-by: Guo Ren <guoren@kernel.org> Signed-off-by: David Hildenbrand <david@redhat.com>
2021-02-27csky: Fixup pfn_valid error with wrong max_mapnrGuo Ren
The max_mapnr is the number of PFNs, not absolute PFN offset. Using set_max_mapnr API instead of setting the value directly. Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
2021-02-27csky: Add VDSO with GENERIC_GETTIMEOFDAY, GENERIC_TIME_VSYSCALL, ↵Guo Ren
HAVE_GENERIC_VDSO It could help to reduce the latency of the time-related functions in user space. We have referenced arm's and riscv's implementation for the patch. Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Cc: Vincent Chen <vincent.chen@sifive.com> Cc: Arnd Bergmann <arnd@arndb.de>
2021-02-27csky: kprobe: Fixup code in simulate without 'long'Guo Ren
The type of 'val' is 'unsigned long' in simulate_blz32, so 'val < 0' can't be true. Cast 'val' to 'long' here to determine branch token or not, Fixup instructions: bnezad32, bhsz32, bhz32, blsz32, blz32 Link: https://lore.kernel.org/linux-csky/CAJF2gTQjKXR9gpo06WAWG1aquiT87mATiMGorXs6ChxOxoe90Q@mail.gmail.com/T/#t Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Co-developed-by: Menglong Dong <dong.menglong@zte.com.cn> Signed-off-by: Menglong Dong <dong.menglong@zte.com.cn>
2021-02-27csky: Fixup swaponGuo Ren
Current csky's swappon is broken by wrong swap PTE entry format. Now redesign the new format for abiv1 & abiv2 and make swappon + zram work properly on csky machines. C-SKY PTE has VALID, DIRTY to emulate PRESENT, READ, WRITE, EXEC attributes. GLOBAL bit is shared by two pages in the same tlb entry. So we need to keep GLOBAL, VALID, PRESENT zero in swp_pte. To distinguish PAGE_NONE and swp_pte, we need to use an additional bit (abiv1 is _PAGE_READ, abiv2 is _PAGE_WRITE). Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Cc: Arnd Bergmann <arnd@arndb.de>
2021-02-27csky: pgtable.h: Coding conventionGuo Ren
C-SKY page table attributes only have 'Dirty' and 'Valid' to emulate 'PRESENT, READ, WRITE, EXEC, DIRTY, ACCESSED'. This patch cleanup unnecessary definition. Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Cc: Arnd Bergmann <arnd@arndb.de>
2021-02-26riscv: Cleanup setup_bootmem()Kefeng Wang
After the following patches, commit de043da0b9e7 ("RISC-V: Fix usage of memblock_enforce_memory_limit") commit 1bd14a66ee52 ("RISC-V: Remove any memblock representing unusable memory area") commit b10d6bca8720 ("arch, drivers: replace for_each_membock() with for_each_mem_range()") some logic is useless, kill the mem_start/start/end and unneeded code. Reviewed-by: Atish Patra <atish.patra@wdc.com> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-02-26RISC-V: Enable CPU Hotplug in defconfigsAnup Patel
The CPU hotplug support has been tested on QEMU, Spike, and SiFive Unleashed so let's enable it by default in RV32 and RV64 defconfigs. Signed-off-by: Anup Patel <anup.patel@wdc.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-02-26RISC-V: Make NUMA depend on SMPPalmer Dabbelt
In theory these are orthogonal, but in practice all NUMA systems are SMP. NUMA && !SMP doesn't build, everyone else is coupling them, and I don't really see any value in supporting that configuration. Fixes: 4f0e8eef772e ("riscv: Add numa support for riscv64 platform") Suggested-by: Andrew Morton <akpm@linux-foundation.org> Suggested-by: Atish Patra <atishp@atishpatra.org> Reported-by: Kefeng Wang <wangkefeng.wang@huawei.com> Tested-by: Kefeng Wang <wangkefeng.wang@huawei.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-02-26Merge tag 'for-linus' of git://github.com/openrisc/linuxLinus Torvalds
Pull OpenRISC updates from Stafford Horne: - Update for Litex SoC controller to support wider width registers as well as reset. - Refactor SMP code to use device tree to define possible cpus. - Update build including generating vmlinux.bin * tag 'for-linus' of git://github.com/openrisc/linux: openrisc: Use devicetree to determine present cpus drivers/soc/litex: Add restart handler openrisc: add arch/openrisc/Kbuild drivers/soc/litex: make 'litex_[set|get]_reg()' methods private drivers/soc/litex: support 32-bit subregisters, 64-bit CPUs drivers/soc/litex: s/LITEX_REG_SIZE/LITEX_SUBREG_ALIGN/g drivers/soc/litex: separate MMIO from subregister offset calculation drivers/soc/litex: move generic accessors to litex.h openrisc: restart: Call common handlers before hanging openrisc: Add vmlinux.bin target
2021-02-26Merge tag 's390-5.12-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull more s390 updates from Vasily Gorbik: - Fix physical vs virtual confusion in some basic mm macros and routines. Caused by __pa == __va on s390 currently. - Get rid of on-stack cpu masks. - Add support for complete CPU counter set extraction. - Add arch_irq_work_raise implementation. - virtio-ccw revision and opcode fixes. * tag 's390-5.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/cpumf: Add support for complete counter set extraction virtio/s390: implement virtio-ccw revision 2 correctly s390/smp: implement arch_irq_work_raise() s390/topology: move cpumasks away from stack s390/smp: smp_emergency_stop() - move cpumask away from stack s390/smp: __smp_rescan_cpus() - move cpumask away from stack s390/smp: consolidate locking for smp_rescan() s390/mm: fix phys vs virt confusion in vmem_*() functions family s390/mm: fix phys vs virt confusion in pgtable allocation routines s390/mm: fix invalid __pa() usage in pfn_pXd() macros s390/mm: make pXd_deref() macros return a pointer s390/opcodes: rename selhhhr to selfhr
2021-02-26Merge tag 'riscv-for-linus-5.12-mw0' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V updates from Palmer Dabbelt: "A handful of new RISC-V related patches for this merge window: - A check to ensure drivers are properly using uaccess. This isn't manifesting with any of the drivers I'm currently using, but may catch errors in new drivers. - Some preliminary support for the FU740, along with the HiFive Unleashed it will appear on. - NUMA support for RISC-V, which involves making the arm64 code generic. - Support for kasan on the vmalloc region. - A handful of new drivers for the Kendryte K210, along with the DT plumbing required to boot on a handful of K210-based boards. - Support for allocating ASIDs. - Preliminary support for kernels larger than 128MiB. - Various other improvements to our KASAN support, including the utilization of huge pages when allocating the KASAN regions. We may have already found a bug with the KASAN_VMALLOC code, but it's passing my tests. There's a fix in the works, but that will probably miss the merge window. * tag 'riscv-for-linus-5.12-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (75 commits) riscv: Improve kasan population by using hugepages when possible riscv: Improve kasan population function riscv: Use KASAN_SHADOW_INIT define for kasan memory initialization riscv: Improve kasan definitions riscv: Get rid of MAX_EARLY_MAPPING_SIZE soc: canaan: Sort the Makefile alphabetically riscv: Disable KSAN_SANITIZE for vDSO riscv: Remove unnecessary declaration riscv: Add Canaan Kendryte K210 SD card defconfig riscv: Update Canaan Kendryte K210 defconfig riscv: Add Kendryte KD233 board device tree riscv: Add SiPeed MAIXDUINO board device tree riscv: Add SiPeed MAIX GO board device tree riscv: Add SiPeed MAIX DOCK board device tree riscv: Add SiPeed MAIX BiT board device tree riscv: Update Canaan Kendryte K210 device tree dt-bindings: add resets property to dw-apb-timer dt-bindings: fix sifive gpio properties dt-bindings: update sifive uart compatible string dt-bindings: update sifive clint compatible string ...