linux-dev/arch/powerpc/platforms/44x, branch master

powerpc/44x: Add of_node_put() when break out from for_each

2022-09-05T07:30:28Z

In ppc47x_init_irq(), we need to call of_node_put() when there is a break during the iteration of for_each_node_with_property() which will automatically increase and decrease the refcount. Signed-off-by: Liang He [mpe: mpic_alloc() takes its own reference] Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220701133126.243102-1-windhl@126.com

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

powerpc: Remove asm/prom.h from all files that don't need it

2022-05-08T12:15:04Z

Several files include asm/prom.h for no reason. Clean it up. Signed-off-by: Christophe Leroy [mpe: Drop change to prom_parse.c as reported by lkp@intel.com] Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/7c9b8fda63dcf63e1b28f43e7ebdb95182cbc286.1646767214.git.christophe.leroy@csgroup.eu

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/44x: Add __init attribute to eligible functions

2021-12-23T11:33:17Z

Some functions defined in 'arch/powerpc/platforms/44x/' are deserving of an `__init` macro attribute. These functions are only called by other initialization functions and therefore should inherit the attribute. Signed-off-by: Nick Child Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20211216220035.605465-16-nick.child@ibm.com

powerpc/4xx: Complete removal of MSI support

2021-12-09T10:52:20Z

Finish the work by removing all references to the PPC4xx_MSI config and the associated device nodes in the DTs. Signed-off-by: Cédric Le Goater Signed-off-by: Thomas Gleixner Link: https://lore.kernel.org/r/e92f2bb3-b5e1-c870-8151-3917a789a640@kaod.org

powerpc/44x/fsp2: add missing of_node_put

2021-10-28T11:29:35Z

Early exits from for_each_compatible_node() should decrement the node reference counter. Reported by Coccinelle: ./arch/powerpc/platforms/44x/fsp2.c:206:1-25: WARNING: Function "for_each_compatible_node" should have of_node_put() before return around line 218. Fixes: 7813043e1bbc ("powerpc/44x/fsp2: Add irq error handlers") Signed-off-by: Bixuan Cui Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/1635406102-88719-1-git-send-email-cuibixuan@linux.alibaba.com

powerpc/476: Fix sparse report

2021-10-08T13:15:58Z

Fix sparse errors: arch/powerpc/platforms/44x/ppc476.c:236:17: warning: cast removes address space '__iomem' of expression arch/powerpc/platforms/44x/ppc476.c:241:34: warning: incorrect type in argument 1 (different address spaces) arch/powerpc/platforms/44x/ppc476.c:241:34: expected void const volatile [noderef] __iomem *addr arch/powerpc/platforms/44x/ppc476.c:241:34: got unsigned char [usertype] * arch/powerpc/platforms/44x/ppc476.c:243:17: warning: incorrect type in argument 1 (different address spaces) arch/powerpc/platforms/44x/ppc476.c:243:17: expected void volatile [noderef] __iomem *addr arch/powerpc/platforms/44x/ppc476.c:243:17: got unsigned char [usertype] *[assigned] fpga Mark 'fpga' pointer as __iomem. Fixes: ab9a4183fddf ("powerpc: Update currituck pci/usb fixup for new board revision") Reported-by: kernel test robot Signed-off-by: Christophe Leroy Reviewed-by: Alistair Popple Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/aa6055769b92a5d8685b8d0adab99c48a0b0ef4b.1631956926.git.christophe.leroy@csgroup.eu

powerpc: Add esr as a synonym for pt_regs.dsisr

2021-08-26T11:21:06Z

Create an anonymous union for dsisr and esr regsiters, we can reference esr to get the exception detail when CONFIG_4xx=y or CONFIG_BOOKE=y. Otherwise, reference dsisr. This makes code more clear. Signed-off-by: Xiongwei Song [mpe: Reword commit title] Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20210807010239.416055-2-sxwjean@me.com

powerpc/44x: fix spelling mistake in Kconfig "varients" -> "variants"

2021-04-22T15:38:04Z

There is a spelling mistake in the Kconfig help text. Fix it. Signed-off-by: Colin Ian King Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20201216113608.11812-1-colin.king@canonical.com