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authorNicholas Piggin <npiggin@gmail.com>2017-04-13 20:16:22 +1000
committerMichael Ellerman <mpe@ellerman.id.au>2017-04-13 23:34:33 +1000
commitb87ac0218355a83abb899a0022bb2e5252879fc0 (patch)
tree2163874a33e22901d42faeceba3b99e1d25eab05 /arch/powerpc/include/asm/smp.h
parentb866cc2199d6a6cdcefe4acfe4cfca3ac3c6d38e (diff)
powerpc: Introduce msgsnd/doorbell barrier primitives
POWER9 changes requirements and adds new instructions for synchronization. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/smp.h')
-rw-r--r--arch/powerpc/include/asm/smp.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/smp.h b/arch/powerpc/include/asm/smp.h
index d9ed3b02615e..751b2bd944fc 100644
--- a/arch/powerpc/include/asm/smp.h
+++ b/arch/powerpc/include/asm/smp.h
@@ -128,6 +128,7 @@ extern const char *smp_ipi_name[];
extern void smp_muxed_ipi_message_pass(int cpu, int msg);
extern void smp_muxed_ipi_set_message(int cpu, int msg);
extern irqreturn_t smp_ipi_demux(void);
+extern irqreturn_t smp_ipi_demux_relaxed(void);
void smp_init_pSeries(void);
void smp_init_cell(void);