diff options
Diffstat (limited to 'arch/powerpc/platforms')
| -rw-r--r-- | arch/powerpc/platforms/powernv/opal-imc.c | 9 | ||||
| -rw-r--r-- | arch/powerpc/platforms/ps3/os-area.c | 4 | ||||
| -rw-r--r-- | arch/powerpc/platforms/pseries/iommu.c | 9 | ||||
| -rw-r--r-- | arch/powerpc/platforms/pseries/ras.c | 11 |
4 files changed, 22 insertions, 11 deletions
diff --git a/arch/powerpc/platforms/powernv/opal-imc.c b/arch/powerpc/platforms/powernv/opal-imc.c index 968b9a4d1cd9..7824cc364bc4 100644 --- a/arch/powerpc/platforms/powernv/opal-imc.c +++ b/arch/powerpc/platforms/powernv/opal-imc.c @@ -268,14 +268,7 @@ static int opal_imc_counters_probe(struct platform_device *pdev) domain = IMC_DOMAIN_THREAD; break; case IMC_TYPE_TRACE: - /* - * FIXME. Using trace_imc events to monitor application - * or KVM thread performance can cause a checkstop - * (system crash). - * Disable it for now. - */ - pr_info_once("IMC: disabling trace_imc PMU\n"); - domain = -1; + domain = IMC_DOMAIN_TRACE; break; default: pr_warn("IMC Unknown Device type \n"); diff --git a/arch/powerpc/platforms/ps3/os-area.c b/arch/powerpc/platforms/ps3/os-area.c index cbddd63caf2d..e8530371aed6 100644 --- a/arch/powerpc/platforms/ps3/os-area.c +++ b/arch/powerpc/platforms/ps3/os-area.c @@ -613,10 +613,8 @@ static int update_flash_db(void) /* Read in header and db from flash. */ header = kmalloc(buf_len, GFP_KERNEL); - if (!header) { - pr_debug("%s: kmalloc failed\n", __func__); + if (!header) return -ENOMEM; - } count = os_area_flash_read(header, buf_len, 0); if (count < 0) { diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c index 2e0a8eab5588..6d47b4a3ce39 100644 --- a/arch/powerpc/platforms/pseries/iommu.c +++ b/arch/powerpc/platforms/pseries/iommu.c @@ -945,6 +945,15 @@ static phys_addr_t ddw_memory_hotplug_max(void) phys_addr_t max_addr = memory_hotplug_max(); struct device_node *memory; + /* + * The "ibm,pmemory" can appear anywhere in the address space. + * Assuming it is still backed by page structs, set the upper limit + * for the huge DMA window as MAX_PHYSMEM_BITS. + */ + if (of_find_node_by_type(NULL, "ibm,pmemory")) + return (sizeof(phys_addr_t) * 8 <= MAX_PHYSMEM_BITS) ? + (phys_addr_t) -1 : (1ULL << MAX_PHYSMEM_BITS); + for_each_node_by_type(memory, "memory") { unsigned long start, size; int n_mem_addr_cells, n_mem_size_cells, len; diff --git a/arch/powerpc/platforms/pseries/ras.c b/arch/powerpc/platforms/pseries/ras.c index aa6208c8d4f0..1d1da639b8b7 100644 --- a/arch/powerpc/platforms/pseries/ras.c +++ b/arch/powerpc/platforms/pseries/ras.c @@ -686,6 +686,17 @@ static int mce_handle_error(struct pt_regs *regs, struct rtas_error_log *errp) #endif out: + /* + * Enable translation as we will be accessing per-cpu variables + * in save_mce_event() which may fall outside RMO region, also + * leave it enabled because subsequently we will be queuing work + * to workqueues where again per-cpu variables accessed, besides + * fwnmi_release_errinfo() crashes when called in realmode on + * pseries. + * Note: All the realmode handling like flushing SLB entries for + * SLB multihit is done by now. + */ + mtmsr(mfmsr() | MSR_IR | MSR_DR); save_mce_event(regs, disposition == RTAS_DISP_FULLY_RECOVERED, &mce_err, regs->nip, eaddr, paddr); |