From: Michael Ellerman <mpe@ellerman.id.au>
To: <linuxppc-dev@lists.ozlabs.org>
Subject: [PATCH 1/2] powerpc/64s: Add CPU_FTRS_POWER9_DD2_2 to CPU_FTRS_ALWAYS mask
Date: Thu, 19 May 2022 22:22:04 +1000 [thread overview]
Message-ID: <20220519122205.746276-1-mpe@ellerman.id.au> (raw)
CPU_FTRS_POWER9_DD2_2 is missing from CPU_FTRS_ALWAYS.
That doesn't cause any bug, because CPU_FTRS_POWER9_DD2_2 adds new bits
that don't appear in other values, so when anded with the other masks
the result is the same.
But for consistency we should have all values in the CPU_FTRS_ALWAYS
mask, so that the logic is robust against the values being changed in
future.
Fixes: b5af4f279323 ("powerpc: Add CPU feature bits for TM bug workarounds on POWER9 v2.2")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---
arch/powerpc/include/asm/cputable.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h
index e85c849214a2..4457052d7450 100644
--- a/arch/powerpc/include/asm/cputable.h
+++ b/arch/powerpc/include/asm/cputable.h
@@ -541,14 +541,14 @@ enum {
#define CPU_FTRS_ALWAYS \
(CPU_FTRS_POSSIBLE & ~CPU_FTR_HVMODE & CPU_FTRS_POWER7 & \
CPU_FTRS_POWER8E & CPU_FTRS_POWER8 & CPU_FTRS_POWER9 & \
- CPU_FTRS_POWER9_DD2_1 & CPU_FTRS_DT_CPU_BASE)
+ CPU_FTRS_POWER9_DD2_1 & CPU_FTRS_POWER9_DD2_2 & CPU_FTRS_DT_CPU_BASE)
#else
#define CPU_FTRS_ALWAYS \
(CPU_FTRS_PPC970 & CPU_FTRS_POWER5 & \
CPU_FTRS_POWER6 & CPU_FTRS_POWER7 & CPU_FTRS_CELL & \
CPU_FTRS_PA6T & CPU_FTRS_POWER8 & CPU_FTRS_POWER8E & \
~CPU_FTR_HVMODE & CPU_FTRS_POSSIBLE & CPU_FTRS_POWER9 & \
- CPU_FTRS_POWER9_DD2_1 & CPU_FTRS_DT_CPU_BASE)
+ CPU_FTRS_POWER9_DD2_1 & CPU_FTRS_POWER9_DD2_2 & CPU_FTRS_DT_CPU_BASE)
#endif /* CONFIG_CPU_LITTLE_ENDIAN */
#endif
#else
--
2.35.3
next reply other threads:[~2022-05-19 12:23 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-19 12:22 Michael Ellerman [this message]
2022-05-19 12:22 ` [PATCH 2/2] powerpc/64s: Add CPU_FTRS_POWER10 to ALWAYS mask Michael Ellerman
2022-05-28 12:55 ` [PATCH 1/2] powerpc/64s: Add CPU_FTRS_POWER9_DD2_2 to CPU_FTRS_ALWAYS mask Michael Ellerman
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