Chris Packham dba6465408 powerpc/setup_64: Set cache-line-size based on cache-block-size ... commit 94c0b013c9 upstream. If {i,d}-cache-block-size is set and {i,d}-cache-line-size is not, use the block-size value for both. Per the devicetree spec cache-line-size is only needed if it differs from the block size. Originally the code would fallback from block size to line size. An error message was printed if both properties were missing. Later the code was refactored to use clearer names and logic but it inadvertently made line size a required property, meaning on systems without a line size property we fall back to the default from the cputable. On powernv (OPAL) platforms, since the introduction of device tree CPU features (5a61ef74f2 ("powerpc/64s: Support new device tree binding for discovering CPU features")), that has led to the wrong value being used, as the fallback value is incorrect for Power8/Power9 CPUs. The incorrect values flow through to the VDSO and also to the sysconf values, SC_LEVEL1_ICACHE_LINESIZE etc. Fixes: bd067f83b0 ("powerpc/64: Fix naming of cache block vs. cache line") Cc: stable@vger.kernel.org # v4.11+ Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Reported-by: Qian Cai <cai@lca.pw> [mpe: Add even more detail to change log] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200416221908.7886-1-chris.packham@alliedtelesis.co.nz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-04-29 16:33:20 +02:00
..
boot	powerpc/44x: Adjust indentation in ibm4xx_denali_fixup_memsize	2020-02-11 04:35:45 -08:00
configs	…
crypto	…
include	powerpc: Make setjmp/longjmp signature standard	2020-04-17 10:50:23 +02:00
kernel	powerpc/setup_64: Set cache-line-size based on cache-block-size	2020-04-29 16:33:20 +02:00
kvm	KVM: PPC: Book3S HV: Fix H_CEDE return code for nested guests	2020-04-23 10:36:32 +02:00
lib	powerpc: Fix __clear_user() with KUAP enabled	2020-01-04 19:18:37 +01:00
math-emu	…
mm	powerpc/kasan: Fix kasan_remap_early_shadow_ro()	2020-04-17 10:50:25 +02:00
net	powerpc/bpf: Fix tail call implementation	2019-11-02 00:32:26 +01:00
oprofile	…
perf	…
platforms	powerpc/pseries: Fix MCE handling on pseries	2020-04-29 16:33:01 +02:00
purgatory	…
sysdev	powerpc/xive: Fix xmon support on the PowerNV platform	2020-04-17 10:50:23 +02:00
tools	powerpc: Do not consider weak unresolved symbol relocations as bad	2020-02-24 08:37:00 +01:00
xmon	powerpc: Make setjmp/longjmp signature standard	2020-04-17 10:50:23 +02:00
Kbuild	…
Kconfig	mm/mmu_gather: invalidate TLB correctly on batch allocation failure and flush	2020-02-11 04:35:42 -08:00
Kconfig.debug	powerpc/ptdump: Only enable PPC_CHECK_WX with STRICT_KERNEL_RWX	2020-02-14 16:34:16 -05:00
Makefile	powerpc: Don't add -mabi= flags when building with Clang	2020-01-04 19:18:23 +01:00
Makefile.postlink	powerpc: Do not consider weak unresolved symbol relocations as bad	2020-02-24 08:37:00 +01:00