kernel.git/arch/powerpc/platforms/powermac, branch linux-5.18.y

powerpc: fix typos in comments

2022-08-17T12:42:11Z

[ Upstream commit 1fd02f6605b855b4af2883f29a2abc88bdf17857 ] Various spelling mistakes in comments. Detected with the help of Coccinelle. Signed-off-by: Julia Lawall Reviewed-by: Joel Stanley Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220430185654.5855-1-Julia.Lawall@inria.fr Signed-off-by: Sasha Levin

powerpc/machdep: Move sys_ctrler_t definition into pmac_feature.h

2022-02-07T10:02:20Z

sys_ctrler_t definitions are tied to pmac. Move it into pmac_feature.h Signed-off-by: Christophe Leroy [mpe: Move to pmac_feature.h to fix some build errors] Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/7dd5ead4bbca749e2da089ff6fe2b1878d6bf40e.1630667612.git.christophe.leroy@csgroup.eu

powerpc/mm: Switch obsolete dssall to .long

2021-12-23T11:35:13Z

The dssall ("Data Stream Stop All") instruction is obsolete altogether with other Data Cache Instructions since ISA 2.03 (year 2006). LLVM IAS does not support it but PPC970 seems to be using it. This switches dssall to .long as there is no much point in fixing LLVM. Signed-off-by: Alexey Kardashevskiy Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20211221055904.555763-6-aik@ozlabs.ru

cuda/pmu: Make find_via_cuda/pmu init functions

2021-12-23T11:35:00Z

Make `find_via_cuda` and `find_via_pmu` initialization functions. Previously, their definitions in `drivers/macintosh/via-cuda.h` include the `__init` attribute but their alternative definitions in `arch/powerpc/powermac/sectup./c` and prototypes in `include/linux/ cuda.h` and `include/linux/pmu.h` do not use the `__init` macro. Since, only initialization functions call `find_via_cuda` and `find_via_pmu` it is safe to label these functions with `__init`. Signed-off-by: Nick Child Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20211216220035.605465-21-nick.child@ibm.com

powerpc/powermac: Add __init attribute to eligible functions

2021-12-23T11:33:14Z

Some functions defined in 'arch/powerpc/platforms/powermac` 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/20211216220035.605465-11-nick.child@ibm.com

powerpc: use swap() to make code cleaner

2021-12-20T01:01:21Z

Use the macro 'swap()' defined in 'include/linux/minmax.h' to avoid opencoding it. Reported-by: Zeal Robot Signed-off-by: David Yang Signed-off-by: Yang Guang [mpe: Add include of linux/minmax.h] Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/71a702c2189b16c152affd8a8cda1d84ce32741c.1639792543.git.yang.guang5@zte.com.cn

powerpc/powermac: Add additional missing lockdep_register_key()

2021-12-09T11:41:22Z

Commit df1f679d19ed ("powerpc/powermac: Add missing lockdep_register_key()") fixed a problem that was causing a WARNING. There are two other places in the same file with the same problem originating from commit 9e607f72748d ("i2c_powermac: shut up lockdep warning"). Add missing lockdep_register_key() Fixes: 9e607f72748d ("i2c_powermac: shut up lockdep warning") Reported-by: Erhard Furtner Signed-off-by: Christophe Leroy Depends-on: df1f679d19ed ("powerpc/powermac: Add missing lockdep_register_key()") Signed-off-by: Michael Ellerman Link: https://bugzilla.kernel.org/show_bug.cgi?id=200055 Link: https://lore.kernel.org/r/2c7e421874e21b2fb87813d768cf662f630c2ad4.1638984999.git.christophe.leroy@csgroup.eu

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

powerpc/powermac: Add missing lockdep_register_key()

2021-11-30T11:44:39Z

KeyWest i2c @0xf8001003 irq 42 /uni-n@f8000000/i2c@f8001000 BUG: key c2d00cbc has not been registered! ------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(1) WARNING: CPU: 0 PID: 1 at kernel/locking/lockdep.c:4801 lockdep_init_map_type+0x4c0/0xb4c Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.15.5-gentoo-PowerMacG4 #9 NIP: c01a9428 LR: c01a9428 CTR: 00000000 REGS: e1033cf0 TRAP: 0700 Not tainted (5.15.5-gentoo-PowerMacG4) MSR: 00029032 CR: 24002002 XER: 00000000 GPR00: c01a9428 e1033db0 c2d1cf20 00000016 00000004 00000001 c01c0630 e1033a73 GPR08: 00000000 00000000 00000000 e1033db0 24002004 00000000 f8729377 00000003 GPR16: c1829a9c 00000000 18305357 c1416fc0 c1416f80 c006ac60 c2d00ca8 c1416f00 GPR24: 00000000 c21586f0 c2160000 00000000 c2d00cbc c2170000 c216e1a0 c2160000 NIP [c01a9428] lockdep_init_map_type+0x4c0/0xb4c LR [c01a9428] lockdep_init_map_type+0x4c0/0xb4c Call Trace: [e1033db0] [c01a9428] lockdep_init_map_type+0x4c0/0xb4c (unreliable) [e1033df0] [c1c177b8] kw_i2c_add+0x334/0x424 [e1033e20] [c1c18294] pmac_i2c_init+0x9ec/0xa9c [e1033e80] [c1c1a790] smp_core99_probe+0xbc/0x35c [e1033eb0] [c1c03cb0] kernel_init_freeable+0x190/0x5a4 [e1033f10] [c000946c] kernel_init+0x28/0x154 [e1033f30] [c0035148] ret_from_kernel_thread+0x14/0x1c Add missing lockdep_register_key() Reported-by: Erhard Furtner Signed-off-by: Christophe Leroy Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/69e4f55565bb45ebb0843977801b245af0c666fe.1638264741.git.christophe.leroy@csgroup.eu