summaryrefslogtreecommitdiff
path: root/arch/mips/Kconfig
diff options
context:
space:
mode:
authorPaul Burton <paul.burton@mips.com>2019-10-01 21:53:44 +0000
committerPaul Burton <paul.burton@mips.com>2019-10-07 09:43:13 -0700
commite4acfbc18fc9e0d75ad15a652864b3971892e423 (patch)
tree6b6024d6dbbedd60e17018adc13e7bbeae0127e4 /arch/mips/Kconfig
parent4dee90d7b5796692e8da78c7b64cf42d5e4c1b09 (diff)
MIPS: Check Loongson3 LL/SC errata workaround correctness
When Loongson3 LL/SC errata workarounds are enabled (ie. CONFIG_CPU_LOONGSON3_WORKAROUNDS=y) run a tool to scan through the compiled kernel & ensure that the workaround is applied correctly. That is, ensure that: - Every LL or LLD instruction is preceded by a sync instruction. - Any branches from within an LL/SC loop to outside of that loop target a sync instruction. Reasoning for these conditions can be found by reading the comment above the definition of __SYNC_loongson3_war in arch/mips/include/asm/sync.h. This tool will help ensure that we don't inadvertently introduce code paths that miss the required workarounds. Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: linux-mips@vger.kernel.org Cc: Huacai Chen <chenhc@lemote.com> Cc: Jiaxun Yang <jiaxun.yang@flygoat.com> Cc: linux-kernel@vger.kernel.org
Diffstat (limited to 'arch/mips/Kconfig')
0 files changed, 0 insertions, 0 deletions