Revision 3dbcea54b3ff706c58f8e8d4470f5e5d3d24a6a0 authored by Mark Rutland on 15 March 2019, 12:22:36 UTC, committed by Catalin Marinas on 19 March 2019, 14:54:24 UTC
Fujitsu erratum 010001 applies to A64FX v0r0 and v1r0, and we try to
handle either by masking MIDR with MIDR_FUJITSU_ERRATUM_010001_MASK
before comparing it to MIDR_FUJITSU_ERRATUM_010001.
Unfortunately, MIDR_FUJITSU_ERRATUM_010001 is constructed incorrectly
using MIDR_VARIANT(), which is intended to extract the variant field
from MIDR_EL1, rather than generate the field in-place. This results in
MIDR_FUJITSU_ERRATUM_010001 being all-ones, and we only match A64FX
v0r0.
This patch uses MIDR_CPU_VAR_REV() to generate an in-place mask for the
variant field, ensuring the we match both v0r0 and v1r0.
Fixes: 3e32131abc311a5c ("arm64: Add workaround for Fujitsu A64FX erratum 010001")
Reported-by: "Okamoto, Takayuki" <tokamoto@jp.fujitsu.com>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
[catalin.marinas@arm.com: fixed the patch author]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
1 parent 6a019a9
| File | Mode | Size |
|---|---|---|
| Kconfig | -rw-r--r-- | 3.8 KB |
| Makefile | -rw-r--r-- | 779 bytes |
| badrange.c | -rw-r--r-- | 8.1 KB |
| blk.c | -rw-r--r-- | 8.7 KB |
| btt.c | -rw-r--r-- | 43.3 KB |
| btt.h | -rw-r--r-- | 7.7 KB |
| btt_devs.c | -rw-r--r-- | 9.2 KB |
| bus.c | -rw-r--r-- | 29.2 KB |
| claim.c | -rw-r--r-- | 8.0 KB |
| core.c | -rw-r--r-- | 10.7 KB |
| dax_devs.c | -rw-r--r-- | 3.3 KB |
| dimm.c | -rw-r--r-- | 3.5 KB |
| dimm_devs.c | -rw-r--r-- | 22.7 KB |
| e820.c | -rw-r--r-- | 2.3 KB |
| label.c | -rw-r--r-- | 35.5 KB |
| label.h | -rw-r--r-- | 4.5 KB |
| namespace_devs.c | -rw-r--r-- | 65.2 KB |
| nd-core.h | -rw-r--r-- | 6.8 KB |
| nd.h | -rw-r--r-- | 11.7 KB |
| of_pmem.c | -rw-r--r-- | 2.8 KB |
| pfn.h | -rw-r--r-- | 1.6 KB |
| pfn_devs.c | -rw-r--r-- | 20.9 KB |
| pmem.c | -rw-r--r-- | 15.5 KB |
| pmem.h | -rw-r--r-- | 1.1 KB |
| region.c | -rw-r--r-- | 4.5 KB |
| region_devs.c | -rw-r--r-- | 31.8 KB |
| security.c | -rw-r--r-- | 11.4 KB |
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