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| author | Nicholas Piggin <npiggin@gmail.com> | 2023-06-06 23:24:44 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2023-06-14 12:46:42 +1000 |
| commit | fc8562c9b69af9533c39903b1601c378742189b0 (patch) | |
| tree | cbad1014e246b18a28afd9b41507b02574977974 | |
| parent | 0eb8088b5a7524f96cadfb27083f5bdd819d9d52 (diff) | |
powerpc/32: Remove sync from _switch
64-bit has removed the sync from _switch since commit 9145effd626d1
("powerpc/64: Drop explicit hwsync in context switch"). The same
logic there should apply to 32-bit. Remove the sync and replace with
a placeholder comment (32 and 64 will be merged with a later change).
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230606132447.315714-4-npiggin@gmail.com
| -rw-r--r-- | arch/powerpc/kernel/entry_32.S | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S index 47f0dd9a45ad..089432128571 100644 --- a/arch/powerpc/kernel/entry_32.S +++ b/arch/powerpc/kernel/entry_32.S @@ -243,13 +243,7 @@ _GLOBAL(_switch) stw r10,_CCR(r1) stw r1,KSP(r3) /* Set old stack pointer */ -#ifdef CONFIG_SMP - /* We need a sync somewhere here to make sure that if the - * previous task gets rescheduled on another CPU, it sees all - * stores it has performed on this one. - */ - sync -#endif /* CONFIG_SMP */ + /* The sync for SMP migration is taken care of, see entry_64.S */ tophys(r0,r4) mtspr SPRN_SPRG_THREAD,r0 /* Update current THREAD phys addr */ |