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| author | Nicholas Piggin <npiggin@gmail.com> | 2016-12-20 04:30:08 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-04-28 21:02:25 +1000 |
| commit | ddd703ca06ede1b2d01ed1b0cb8d4315ab808099 (patch) | |
| tree | 16f3dbea636620e812642a85e4c8e1b549023051 /arch/powerpc/platforms/ps3 | |
| parent | 2b4f3ac5642672595ef6f71d1572b32475e94863 (diff) | |
| download | lwn-ddd703ca06ede1b2d01ed1b0cb8d4315ab808099.tar.gz lwn-ddd703ca06ede1b2d01ed1b0cb8d4315ab808099.zip | |
powerpc: Add NMI IPI infrastructure
Add a simple NMI IPI system that handles concurrency and reentrancy.
The platform does not have to implement a true non-maskable interrupt,
the default is to simply use the debugger break IPI message. This has
now been co-opted for a general IPI message, and users (debugger and
crash) have been reimplemented on top of the NMI system.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[mpe: Incorporate incremental fixes from Nick]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/platforms/ps3')
| -rw-r--r-- | arch/powerpc/platforms/ps3/smp.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/platforms/ps3/smp.c b/arch/powerpc/platforms/ps3/smp.c index 60154d08debf..1d1ad5df106f 100644 --- a/arch/powerpc/platforms/ps3/smp.c +++ b/arch/powerpc/platforms/ps3/smp.c @@ -77,7 +77,7 @@ static void __init ps3_smp_probe(void) BUILD_BUG_ON(PPC_MSG_CALL_FUNCTION != 0); BUILD_BUG_ON(PPC_MSG_RESCHEDULE != 1); BUILD_BUG_ON(PPC_MSG_TICK_BROADCAST != 2); - BUILD_BUG_ON(PPC_MSG_DEBUGGER_BREAK != 3); + BUILD_BUG_ON(PPC_MSG_NMI_IPI != 3); for (i = 0; i < MSG_COUNT; i++) { result = ps3_event_receive_port_setup(cpu, &virqs[i]); @@ -96,7 +96,7 @@ static void __init ps3_smp_probe(void) ps3_register_ipi_irq(cpu, virqs[i]); } - ps3_register_ipi_debug_brk(cpu, virqs[PPC_MSG_DEBUGGER_BREAK]); + ps3_register_ipi_debug_brk(cpu, virqs[PPC_MSG_NMI_IPI]); DBG(" <- %s:%d: (%d)\n", __func__, __LINE__, cpu); } |