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author | Michael Ellerman <mpe@ellerman.id.au> | 2018-03-31 00:11:24 +1100 |
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committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-03-31 09:09:36 +1100 |
commit | f437c51748fa1dd423a878c870ad203843a51c8d (patch) | |
tree | d1593fe45c0341f88eecd26568bb913ac74c64a1 /arch/powerpc/platforms/pseries | |
parent | 872a100a49c3785b4577e002580ca5689d1be7a1 (diff) | |
parent | 29ab6c4708a587bc27ea0c765ac36aef9c1a77c9 (diff) | |
download | linux-f437c51748fa1dd423a878c870ad203843a51c8d.tar.bz2 |
Merge branch 'topic/paca' into next
Bring in yet another series that touches KVM code, and might need to
be merged into the kvm-ppc branch to resolve conflicts.
This required some changes in pnv_power9_force_smt4_catch/release()
due to the paca array becomming an array of pointers.
Diffstat (limited to 'arch/powerpc/platforms/pseries')
-rw-r--r-- | arch/powerpc/platforms/pseries/hotplug-cpu.c | 2 | ||||
-rw-r--r-- | arch/powerpc/platforms/pseries/kexec.c | 7 | ||||
-rw-r--r-- | arch/powerpc/platforms/pseries/lpar.c | 4 | ||||
-rw-r--r-- | arch/powerpc/platforms/pseries/setup.c | 2 | ||||
-rw-r--r-- | arch/powerpc/platforms/pseries/smp.c | 4 |
5 files changed, 12 insertions, 7 deletions
diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c index 652d3e96b812..6ef77caf7bcf 100644 --- a/arch/powerpc/platforms/pseries/hotplug-cpu.c +++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c @@ -234,7 +234,7 @@ static void pseries_cpu_die(unsigned int cpu) * done here. Change isolate state to Isolate and * change allocation-state to Unusable. */ - paca[cpu].cpu_start = 0; + paca_ptrs[cpu]->cpu_start = 0; } /* diff --git a/arch/powerpc/platforms/pseries/kexec.c b/arch/powerpc/platforms/pseries/kexec.c index eeb13429d685..3fe126796975 100644 --- a/arch/powerpc/platforms/pseries/kexec.c +++ b/arch/powerpc/platforms/pseries/kexec.c @@ -23,7 +23,12 @@ void pseries_kexec_cpu_down(int crash_shutdown, int secondary) { - /* Don't risk a hypervisor call if we're crashing */ + /* + * Don't risk a hypervisor call if we're crashing + * XXX: Why? The hypervisor is not crashing. It might be better + * to at least attempt unregister to avoid the hypervisor stepping + * on our memory. + */ if (firmware_has_feature(FW_FEATURE_SPLPAR) && !crash_shutdown) { int ret; int cpu = smp_processor_id(); diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c index 238b55fb8007..adb996ed51e1 100644 --- a/arch/powerpc/platforms/pseries/lpar.c +++ b/arch/powerpc/platforms/pseries/lpar.c @@ -99,7 +99,7 @@ void vpa_init(int cpu) * reports that. All SPLPAR support SLB shadow buffer. */ if (!radix_enabled() && firmware_has_feature(FW_FEATURE_SPLPAR)) { - addr = __pa(paca[cpu].slb_shadow_ptr); + addr = __pa(paca_ptrs[cpu]->slb_shadow_ptr); ret = register_slb_shadow(hwcpu, addr); if (ret) pr_err("WARNING: SLB shadow buffer registration for " @@ -111,7 +111,7 @@ void vpa_init(int cpu) /* * Register dispatch trace log, if one has been allocated. */ - pp = &paca[cpu]; + pp = paca_ptrs[cpu]; dtl = pp->dispatch_log; if (dtl) { pp->dtl_ridx = 0; diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c index b11564f2a4c7..98bca8d9c9e0 100644 --- a/arch/powerpc/platforms/pseries/setup.c +++ b/arch/powerpc/platforms/pseries/setup.c @@ -247,7 +247,7 @@ static int alloc_dispatch_logs(void) return 0; for_each_possible_cpu(cpu) { - pp = &paca[cpu]; + pp = paca_ptrs[cpu]; dtl = kmem_cache_alloc(dtl_cache, GFP_KERNEL); if (!dtl) { pr_warn("Failed to allocate dispatch trace log for cpu %d\n", diff --git a/arch/powerpc/platforms/pseries/smp.c b/arch/powerpc/platforms/pseries/smp.c index 66b6f119d599..3df46123cce3 100644 --- a/arch/powerpc/platforms/pseries/smp.c +++ b/arch/powerpc/platforms/pseries/smp.c @@ -110,7 +110,7 @@ static inline int smp_startup_cpu(unsigned int lcpu) } /* Fixup atomic count: it exited inside IRQ handler. */ - task_thread_info(paca[lcpu].__current)->preempt_count = 0; + task_thread_info(paca_ptrs[lcpu]->__current)->preempt_count = 0; #ifdef CONFIG_HOTPLUG_CPU if (get_cpu_current_state(lcpu) == CPU_STATE_INACTIVE) goto out; @@ -165,7 +165,7 @@ static int smp_pSeries_kick_cpu(int nr) * cpu_start field to become non-zero After we set cpu_start, * the processor will continue on to secondary_start */ - paca[nr].cpu_start = 1; + paca_ptrs[nr]->cpu_start = 1; #ifdef CONFIG_HOTPLUG_CPU set_preferred_offline_state(nr, CPU_STATE_ONLINE); |