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powerpc: Remove IBM405 Erratum #77

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This erratum is dedicated to IBM 405GP and STB03xxx
which are now gone.

Remove this erratum.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/44dbc08e9034681eb28324cbabc086e97044c36c.1590079969.git.christophe.leroy@csgroup.eu
This commit is contained in:
Christophe Leroy
2020-05-21 16:56:02 +00:00
committed by Michael Ellerman
parent 59fb463b48
commit 455531e9d8
10 changed files with 0 additions and 73 deletions
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3
arch/powerpc/include/asm/futex.h
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@@ -8,14 +8,12 @@
#include <linux/uaccess.h>
#include <asm/errno.h>
#include <asm/synch.h>
#include <asm/asm-405.h>
#define __futex_atomic_op(insn, ret, oldval, uaddr, oparg) \
__asm__ __volatile ( \
PPC_ATOMIC_ENTRY_BARRIER \
"1: lwarx %0,0,%2\n" \
insn \
PPC405_ERR77(0, %2) \
"2: stwcx. %1,0,%2\n" \
"bne- 1b\n" \
PPC_ATOMIC_EXIT_BARRIER \
@@ -82,7 +80,6 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
"1: lwarx %1,0,%3 # futex_atomic_cmpxchg_inatomic\n\
cmpw 0,%1,%4\n\
bne- 3f\n"
PPC405_ERR77(0,%3)
"2: stwcx. %5,0,%3\n\
bne- 1b\n"
PPC_ATOMIC_EXIT_BARRIER