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| author | Nicholas Piggin <npiggin@gmail.com> | 2017-04-13 20:16:21 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-04-13 23:34:33 +1000 |
| commit | b866cc2199d6a6cdcefe4acfe4cfca3ac3c6d38e (patch) | |
| tree | 8baaa55d1ac71d0d18a1d932e561af6751c39c61 /arch/powerpc/sysdev/xics | |
| parent | 9b7ff0c6586bc0541ebcd1ff6773b11a49f1a058 (diff) | |
| download | op-kernel-dev-b866cc2199d6a6cdcefe4acfe4cfca3ac3c6d38e.zip op-kernel-dev-b866cc2199d6a6cdcefe4acfe4cfca3ac3c6d38e.tar.gz | |
powerpc: Change the doorbell IPI calling convention
Change the doorbell callers to know about their msgsnd addressing,
rather than have them set a per-cpu target data tag at boot that gets
sent to the cause_ipi functions. The data is only used for doorbell IPI
functions, no other IPI types, so it makes sense to keep that detail
local to doorbell.
Have the platform code understand doorbell IPIs, rather than the
interrupt controller code understand them. Platform code can look at
capabilities it has available and decide which to use.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/sysdev/xics')
| -rw-r--r-- | arch/powerpc/sysdev/xics/icp-hv.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/xics/icp-native.c | 12 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/xics/icp-opal.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/xics/xics-common.c | 3 |
4 files changed, 3 insertions, 16 deletions
diff --git a/arch/powerpc/sysdev/xics/icp-hv.c b/arch/powerpc/sysdev/xics/icp-hv.c index e7fa26c..bbc839a 100644 --- a/arch/powerpc/sysdev/xics/icp-hv.c +++ b/arch/powerpc/sysdev/xics/icp-hv.c @@ -138,7 +138,7 @@ static void icp_hv_set_cpu_priority(unsigned char cppr) #ifdef CONFIG_SMP -static void icp_hv_cause_ipi(int cpu, unsigned long data) +static void icp_hv_cause_ipi(int cpu) { icp_hv_set_qirr(cpu, IPI_PRIORITY); } diff --git a/arch/powerpc/sysdev/xics/icp-native.c b/arch/powerpc/sysdev/xics/icp-native.c index f0f3f47..2bfb996 100644 --- a/arch/powerpc/sysdev/xics/icp-native.c +++ b/arch/powerpc/sysdev/xics/icp-native.c @@ -143,19 +143,9 @@ static unsigned int icp_native_get_irq(void) #ifdef CONFIG_SMP -static void icp_native_cause_ipi(int cpu, unsigned long data) +static void icp_native_cause_ipi(int cpu) { kvmppc_set_host_ipi(cpu, 1); -#ifdef CONFIG_PPC_DOORBELL - if (cpu_has_feature(CPU_FTR_DBELL)) { - if (cpumask_test_cpu(cpu, cpu_sibling_mask(get_cpu()))) { - doorbell_cause_ipi(cpu, data); - put_cpu(); - return; - } - put_cpu(); - } -#endif icp_native_set_qirr(cpu, IPI_PRIORITY); } diff --git a/arch/powerpc/sysdev/xics/icp-opal.c b/arch/powerpc/sysdev/xics/icp-opal.c index b53f80f..c71d2ea 100644 --- a/arch/powerpc/sysdev/xics/icp-opal.c +++ b/arch/powerpc/sysdev/xics/icp-opal.c @@ -126,7 +126,7 @@ static void icp_opal_eoi(struct irq_data *d) #ifdef CONFIG_SMP -static void icp_opal_cause_ipi(int cpu, unsigned long data) +static void icp_opal_cause_ipi(int cpu) { int hw_cpu = get_hard_smp_processor_id(cpu); diff --git a/arch/powerpc/sysdev/xics/xics-common.c b/arch/powerpc/sysdev/xics/xics-common.c index 23efe4e..2eb53c1 100644 --- a/arch/powerpc/sysdev/xics/xics-common.c +++ b/arch/powerpc/sysdev/xics/xics-common.c @@ -143,9 +143,6 @@ static void xics_request_ipi(void) void __init xics_smp_probe(void) { - /* Setup cause_ipi callback based on which ICP is used */ - smp_ops->cause_ipi = icp_ops->cause_ipi; - /* Register all the IPIs */ xics_request_ipi(); } |
