linux-dev/arch/powerpc/platforms/pasemi, branch master

powerpc/pasemi: Use of_root in pas_pci_init()

2022-09-06T01:03:31Z

Currently in pas_pci_init() a reference to the root node is leaked due to a missing of_node_put(). Instead just use of_root directly. Note that converting to of_find_compatible_node(NULL, ...) would not be entirely equivalent, because that would check the compatible property of the root node, whereas using of_root skips checking the root node and start the search at the first child of the root. Reported-by: Liang He Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220906010313.1296714-1-mpe@ellerman.id.au

powerpc/pasemi: Use strscpy instead of strlcpy

2022-09-06T01:03:04Z

find_i2c_driver() contained the last usage of strlcpy() in arch/powerpc. The return value was used to check if strlen(src) >= n, for which strscpy() returns -E2BIG. Signed-off-by: Russell Currey Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220827063946.9073-1-ruscur@russell.cc

powerpc: Add missing headers

2022-05-08T12:15:40Z

Don't inherit headers "by chances" from asm/prom.h, asm/mpc52xx.h, asm/pci.h etc... Include the needed headers, and remove asm/prom.h when it was needed exclusively for pulling necessary headers. Signed-off-by: Christophe Leroy Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/be8bdc934d152a7d8ee8d1a840d5596e2f7d85e0.1646767214.git.christophe.leroy@csgroup.eu

Merge tag 'bitmap-5.17-rc1' of git://github.com/norov/linux

2022-01-23T04:20:44Z

Pull bitmap updates from Yury Norov: - introduce for_each_set_bitrange() - use find_first_*_bit() instead of find_next_*_bit() where possible - unify for_each_bit() macros * tag 'bitmap-5.17-rc1' of git://github.com/norov/linux: vsprintf: rework bitmap_list_string lib: bitmap: add performance test for bitmap_print_to_pagebuf bitmap: unify find_bit operations mm/percpu: micro-optimize pcpu_is_populated() Replace for_each_*_bit_from() with for_each_*_bit() where appropriate find: micro-optimize for_each_{set,clear}_bit() include/linux: move for_each_bit() macros from bitops.h to find.h cpumask: replace cpumask_next_* with cpumask_first_* where appropriate tools: sync tools/bitmap with mother linux all: replace find_next{,_zero}_bit with find_first{,_zero}_bit where appropriate cpumask: use find_first_and_bit() lib: add find_first_and_bit() arch: remove GENERIC_FIND_FIRST_BIT entirely include: move find.h from asm_generic to linux bitops: move find_bit_*_le functions from le.h to find.h bitops: protect find_first_{,zero}_bit properly

all: replace find_next{,_zero}_bit with find_first{,_zero}_bit where appropriate

2022-01-15T16:47:31Z

find_first{,_zero}_bit is a more effective analogue of 'next' version if start == 0. This patch replaces 'next' with 'first' where things look trivial. Signed-off-by: Yury Norov Tested-by: Wolfram Sang

Merge tag 'powerpc-5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

2022-01-14T14:17:26Z

Pull powerpc updates from Michael Ellerman: - Optimise radix KVM guest entry/exit by 2x on Power9/Power10. - Allow firmware to tell us whether to disable the entry and uaccess flushes on Power10 or later CPUs. - Add BPF_PROBE_MEM support for 32 and 64-bit BPF jits. - Several fixes and improvements to our hard lockup watchdog. - Activate HAVE_DYNAMIC_FTRACE_WITH_REGS on 32-bit. - Allow building the 64-bit Book3S kernel without hash MMU support, ie. Radix only. - Add KUAP (SMAP) support for 40x, 44x, 8xx, Book3E (64-bit). - Add new encodings for perf_mem_data_src.mem_hops field, and use them on Power10. - A series of small performance improvements to 64-bit interrupt entry. - Several commits fixing issues when building with the clang integrated assembler. - Many other small features and fixes. Thanks to Alan Modra, Alexey Kardashevskiy, Ammar Faizi, Anders Roxell, Arnd Bergmann, Athira Rajeev, Cédric Le Goater, Christophe JAILLET, Christophe Leroy, Christoph Hellwig, Daniel Axtens, David Yang, Erhard Furtner, Fabiano Rosas, Greg Kroah-Hartman, Guo Ren, Hari Bathini, Jason Wang, Joel Stanley, Julia Lawall, Kajol Jain, Kees Cook, Laurent Dufour, Madhavan Srinivasan, Mark Brown, Minghao Chi, Nageswara R Sastry, Naresh Kamboju, Nathan Chancellor, Nathan Lynch, Nicholas Piggin, Nick Child, Oliver O'Halloran, Peiwei Hu, Randy Dunlap, Ravi Bangoria, Rob Herring, Russell Currey, Sachin Sant, Sean Christopherson, Segher Boessenkool, Thadeu Lima de Souza Cascardo, Tyrel Datwyler, Xiang wangx, and Yang Guang. * tag 'powerpc-5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (240 commits) powerpc/xmon: Dump XIVE information for online-only processors. powerpc/opal: use default_groups in kobj_type powerpc/cacheinfo: use default_groups in kobj_type powerpc/sched: Remove unused TASK_SIZE_OF powerpc/xive: Add missing null check after calling kmalloc powerpc/floppy: Remove usage of the deprecated "pci-dma-compat.h" API selftests/powerpc: Add a test of sigreturning to an unaligned address powerpc/64s: Use EMIT_WARN_ENTRY for SRR debug warnings powerpc/64s: Mask NIP before checking against SRR0 powerpc/perf: Fix spelling of "its" powerpc/32: Fix boot failure with GCC latent entropy plugin powerpc/code-patching: Replace patch_instruction() by ppc_inst_write() in selftests powerpc/code-patching: Move code patching selftests in its own file powerpc/code-patching: Move instr_is_branch_{i/b}form() in code-patching.h powerpc/code-patching: Move patch_exception() outside code-patching.c powerpc/code-patching: Use test_trampoline for prefixed patch test powerpc/code-patching: Fix patch_branch() return on out-of-range failure powerpc/code-patching: Reorganise do_patch_instruction() to ease error handling powerpc/code-patching: Fix unmap_patch_area() error handling powerpc/code-patching: Fix error handling in do_patch_instruction() ...

powerpc/pasemi: Add __init attribute to eligible functions

2021-12-23T11:33:14Z

Some functions defined in 'arch/powerpc/platforms/pasemi' are deserving of an `__init` macro attribute. These functions are only called by other initialization functions and therefore should inherit the attribute. Also, change function declarations in header files to include `__init`. Signed-off-by: Nick Child Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20211216220035.605465-10-nick.child@ibm.com

powerpc/pasemi/msi: Convert to msi_on_each_dec()

2021-12-16T21:22:18Z

Replace the about to vanish iterators and make use of the filtering. Signed-off-by: Thomas Gleixner Reviewed-by: Jason Gunthorpe Link: https://lore.kernel.org/r/20211206210748.468512783@linutronix.de

powerpc/64s: Make hash MMU support configurable

2021-12-09T11:40:24Z

This adds Kconfig selection which allows 64s hash MMU support to be disabled. It can be disabled if radix support is enabled, the minimum supported CPU type is POWER9 (or higher), and KVM is not selected. Signed-off-by: Nicholas Piggin Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20211201144153.2456614-17-npiggin@gmail.com

powerpc: Rename PPC_NATIVE to PPC_HASH_MMU_NATIVE

2021-12-02T11:57:22Z

PPC_NATIVE now only controls the native HPT code, so rename it to be more descriptive. Restrict it to Book3S only. Signed-off-by: Nicholas Piggin Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20211201144153.2456614-3-npiggin@gmail.com