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| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2021-08-28 10:40:41 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-08-28 10:40:41 -0700 |
| commit | 9f73eacde73b105d722968e79d0f84fd5034a6f4 (patch) | |
| tree | 781974492c632c2c4f66bf24686ac312858008a4 /arch/powerpc | |
| parent | Merge tag 'block-5.14-2021-08-27' of git://git.kernel.dk/linux-block (diff) | |
| parent | powerpc/64s: Fix scv implicit soft-mask table for relocated kernels (diff) | |
| download | linux-dev-9f73eacde73b105d722968e79d0f84fd5034a6f4.tar.xz linux-dev-9f73eacde73b105d722968e79d0f84fd5034a6f4.zip | |
Merge tag 'powerpc-5.14-7' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Fix scv implicit soft-mask table for relocated (eg. kdump) kernels
- Re-enable ARCH_ENABLE_SPLIT_PMD_PTLOCK, which was disabled due to a
typo
Thanks to Lukas Bulwahn, Nicholas Piggin, and Daniel Axtens.
* tag 'powerpc-5.14-7' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/64s: Fix scv implicit soft-mask table for relocated kernels
powerpc: Re-enable ARCH_ENABLE_SPLIT_PMD_PTLOCK
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/kernel/exceptions-64s.S | 7 | ||||
| -rw-r--r-- | arch/powerpc/platforms/Kconfig.cputype | 2 |
2 files changed, 5 insertions, 4 deletions
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S index 4aec59a77d4c..37859e62a8dc 100644 --- a/arch/powerpc/kernel/exceptions-64s.S +++ b/arch/powerpc/kernel/exceptions-64s.S @@ -812,7 +812,6 @@ __start_interrupts: * syscall register convention is in Documentation/powerpc/syscall64-abi.rst */ EXC_VIRT_BEGIN(system_call_vectored, 0x3000, 0x1000) -1: /* SCV 0 */ mr r9,r13 GET_PACA(r13) @@ -842,10 +841,12 @@ EXC_VIRT_BEGIN(system_call_vectored, 0x3000, 0x1000) b system_call_vectored_sigill #endif .endr -2: EXC_VIRT_END(system_call_vectored, 0x3000, 0x1000) -SOFT_MASK_TABLE(1b, 2b) // Treat scv vectors as soft-masked, see comment above. +// Treat scv vectors as soft-masked, see comment above. +// Use absolute values rather than labels here, so they don't get relocated, +// because this code runs unrelocated. +SOFT_MASK_TABLE(0xc000000000003000, 0xc000000000004000) #ifdef CONFIG_RELOCATABLE TRAMP_VIRT_BEGIN(system_call_vectored_tramp) diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype index 6794145603de..a208997ade88 100644 --- a/arch/powerpc/platforms/Kconfig.cputype +++ b/arch/powerpc/platforms/Kconfig.cputype @@ -98,7 +98,7 @@ config PPC_BOOK3S_64 select PPC_HAVE_PMU_SUPPORT select HAVE_ARCH_TRANSPARENT_HUGEPAGE select ARCH_ENABLE_HUGEPAGE_MIGRATION if HUGETLB_PAGE && MIGRATION - select ARCH_ENABLE_PMD_SPLIT_PTLOCK + select ARCH_ENABLE_SPLIT_PMD_PTLOCK select ARCH_ENABLE_THP_MIGRATION if TRANSPARENT_HUGEPAGE select ARCH_SUPPORTS_HUGETLBFS select ARCH_SUPPORTS_NUMA_BALANCING |