linux-dev/arch/riscv, branch linus/master

Merge tag 'riscv-for-linus-5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

2022-06-17T18:45:47Z

Pull RISC-V fixes from Palmer Dabbelt: - A fix for the PolarFire SOC's device tree - A handful of fixes for the recently added Svpmbt support - An improvement to the Kconfig text for Svpbmt * tag 'riscv-for-linus-5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: riscv: Improve description for RISCV_ISA_SVPBMT Kconfig symbol riscv: drop cpufeature_apply_feature tracking variable riscv: fix dependency for t-head errata riscv: dts: microchip: re-add pdma to mpfs device tree

RISC-V: Some Svpbmt fixes

2022-06-16T22:48:39Z

Some additionals comments and notes from autobuilders received after the series got applied, warranted some changes. * commit '924cbb8cbe3460ea192e6243017ceb0ceb255b1b': riscv: Improve description for RISCV_ISA_SVPBMT Kconfig symbol riscv: drop cpufeature_apply_feature tracking variable riscv: fix dependency for t-head errata

riscv: Improve description for RISCV_ISA_SVPBMT Kconfig symbol

2022-06-16T22:47:39Z

This improves the symbol's description to make it easier for people to understand what it is about. Suggested-by: Christoph Hellwig Suggested-by: Philipp Tomsich Signed-off-by: Heiko Stuebner Reviewed-by: Guo Ren Link: https://lore.kernel.org/r/20220526205646.258337-3-heiko@sntech.de Signed-off-by: Palmer Dabbelt

riscv: drop cpufeature_apply_feature tracking variable

2022-06-16T22:47:31Z

The variable was tracking which feature patches got applied but that information was never actually used - and thus resulted in a warning as well. Drop the variable. Reported-by: kernel test robot Signed-off-by: Heiko Stuebner Reviewed-by: Guo Ren Link: https://lore.kernel.org/r/20220526205646.258337-2-heiko@sntech.de Fixes: ff689fd21cb1 ("riscv: add RISC-V Svpbmt extension support") Signed-off-by: Palmer Dabbelt

riscv: fix dependency for t-head errata

2022-06-16T22:42:55Z

alternatives only work correctly on non-xip-kernels and while the selected alternative-symbol has the correct dependency the symbol selecting it also needs that dependency. So add the missing dependency to the T-Head errata Kconfig symbol. Reported-by: kernel test robot Reviewed-by: Guo Ren Signed-off-by: Heiko Stuebner Link: https://lore.kernel.org/r/20220526205646.258337-5-heiko@sntech.de Fixes: a35707c3d850 ("riscv: add memory-type errata for T-Head") Signed-off-by: Palmer Dabbelt

riscv: dts: microchip: re-add pdma to mpfs device tree

2022-06-12T18:33:52Z

PolarFire SoC /does/ have a SiFive pdma, despite what I suggested as a conflict resolution to Zong. Somehow the entry fell through the cracks between versions of my dt patches, so re-add it with Zong's updated compatible & dma-channels property. Fixes: c5094f371008 ("riscv: dts: microchip: refactor icicle kit device tree") Signed-off-by: Conor Dooley

RISC-V: KVM: fix typos in comments

2022-06-09T03:48:15Z

Various spelling mistakes in comments. Detected with the help of Coccinelle. Signed-off-by: Julia Lawall Signed-off-by: Anup Patel

Merge tag 'bitmap-for-5.19-rc1' of https://github.com/norov/linux

2022-06-04T21:04:27Z

Pull bitmap updates from Yury Norov: - bitmap: optimize bitmap_weight() usage, from me - lib/bitmap.c make bitmap_print_bitmask_to_buf parseable, from Mauro Carvalho Chehab - include/linux/find: Fix documentation, from Anna-Maria Behnsen - bitmap: fix conversion from/to fix-sized arrays, from me - bitmap: Fix return values to be unsigned, from Kees Cook It has been in linux-next for at least a week with no problems. * tag 'bitmap-for-5.19-rc1' of https://github.com/norov/linux: (31 commits) nodemask: Fix return values to be unsigned bitmap: Fix return values to be unsigned KVM: x86: hyper-v: replace bitmap_weight() with hweight64() KVM: x86: hyper-v: fix type of valid_bank_mask ia64: cleanup remove_siblinginfo() drm/amd/pm: use bitmap_{from,to}_arr32 where appropriate KVM: s390: replace bitmap_copy with bitmap_{from,to}_arr64 where appropriate lib/bitmap: add test for bitmap_{from,to}_arr64 lib: add bitmap_{from,to}_arr64 lib/bitmap: extend comment for bitmap_(from,to)_arr32() include/linux/find: Fix documentation lib/bitmap.c make bitmap_print_bitmask_to_buf parseable MAINTAINERS: add cpumask and nodemask files to BITMAP_API arch/x86: replace nodes_weight with nodes_empty where appropriate mm/vmstat: replace cpumask_weight with cpumask_empty where appropriate clocksource: replace cpumask_weight with cpumask_empty in clocksource.c genirq/affinity: replace cpumask_weight with cpumask_empty where appropriate irq: mips: replace cpumask_weight with cpumask_empty where appropriate drm/i915/pmu: replace cpumask_weight with cpumask_empty where appropriate arch/x86: replace cpumask_weight with cpumask_empty where appropriate ...

Merge tag 'kthread-cleanups-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace

2022-06-03T23:03:05Z

Pull kthread updates from Eric Biederman: "This updates init and user mode helper tasks to be ordinary user mode tasks. Commit 40966e316f86 ("kthread: Ensure struct kthread is present for all kthreads") caused init and the user mode helper threads that call kernel_execve to have struct kthread allocated for them. This struct kthread going away during execve in turned made a use after free of struct kthread possible. Here, commit 343f4c49f243 ("kthread: Don't allocate kthread_struct for init and umh") is enough to fix the use after free and is simple enough to be backportable. The rest of the changes pass struct kernel_clone_args to clean things up and cause the code to make sense. In making init and the user mode helpers tasks purely user mode tasks I ran into two complications. The function task_tick_numa was detecting tasks without an mm by testing for the presence of PF_KTHREAD. The initramfs code in populate_initrd_image was using flush_delayed_fput to ensuere the closing of all it's file descriptors was complete, and flush_delayed_fput does not work in a userspace thread. I have looked and looked and more complications and in my code review I have not found any, and neither has anyone else with the code sitting in linux-next" * tag 'kthread-cleanups-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: sched: Update task_tick_numa to ignore tasks without an mm fork: Stop allowing kthreads to call execve fork: Explicitly set PF_KTHREAD init: Deal with the init process being a user mode process fork: Generalize PF_IO_WORKER handling fork: Explicity test for idle tasks in copy_thread fork: Pass struct kernel_clone_args into copy_thread kthread: Don't allocate kthread_struct for init and umh

Merge tag 'riscv-for-linus-5.19-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

2022-06-03T21:01:43Z

Pull more RISC-V updates from Palmer Dabbelt: "This is mostly some DT updates, but also a handful of cleanups and some fixes. The most user-visible of those are: - A device tree for the Sundance Polarberry, along with a handful of fixes and clenups to the PolarFire SOC device trees and bindings. - The memfd_secret syscall number is now visible to userspace, - Some improvements to the vm layout dump, which really should have followed shortly after the sv48 patches but I missed" * tag 'riscv-for-linus-5.19-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: riscv: Move alternative length validation into subsection riscv: mm: init: make pt_ops_set_[early|late|fixmap] static riscv: move errata/ and kvm/ builds to arch/riscv/Kbuild RISC-V: Mark IORESOURCE_EXCLUSIVE for reserved mem instead of IORESOURCE_BUSY riscv: Wire up memfd_secret in UAPI header riscv: Fix irq_work when SMP is disabled riscv: Improve virtual kernel memory layout dump riscv: Initialize thread pointer before calling C functions Documentation: riscv: Add sv48 description to VM layout RISC-V: Only default to spinwait on SBI-0.1 and M-mode riscv: dts: icicle: sort nodes alphabetically riscv: microchip: icicle: readability fixes riscv: dts: microchip: add the sundance polarberry dt-bindings: riscv: microchip: add polarberry compatible string dt-bindings: vendor-prefixes: add Sundance DSP riscv: dts: microchip: make the fabric dtsi board specific dt-bindings: riscv: microchip: document icicle reference design riscv: dts: microchip: remove soc vendor from filenames riscv: dts: microchip: move sysctrlr out of soc bus riscv: dts: microchip: remove icicle memory clocks