diff options
Diffstat (limited to 'arch/powerpc/platforms/pseries/setup.c')
| -rw-r--r-- | arch/powerpc/platforms/pseries/setup.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c index 9948ad16f788..b411a74b861d 100644 --- a/arch/powerpc/platforms/pseries/setup.c +++ b/arch/powerpc/platforms/pseries/setup.c @@ -41,6 +41,7 @@ #include <linux/root_dev.h> #include <linux/of.h> #include <linux/of_pci.h> +#include <linux/memblock.h> #include <asm/mmu.h> #include <asm/processor.h> @@ -102,6 +103,9 @@ static void pSeries_show_cpuinfo(struct seq_file *m) static void __init fwnmi_init(void) { unsigned long system_reset_addr, machine_check_addr; + u8 *mce_data_buf; + unsigned int i; + int nr_cpus = num_possible_cpus(); int ibm_nmi_register = rtas_token("ibm,nmi-register"); if (ibm_nmi_register == RTAS_UNKNOWN_SERVICE) @@ -115,6 +119,18 @@ static void __init fwnmi_init(void) if (0 == rtas_call(ibm_nmi_register, 2, 1, NULL, system_reset_addr, machine_check_addr)) fwnmi_active = 1; + + /* + * Allocate a chunk for per cpu buffer to hold rtas errorlog. + * It will be used in real mode mce handler, hence it needs to be + * below RMA. + */ + mce_data_buf = __va(memblock_alloc_base(RTAS_ERROR_LOG_MAX * nr_cpus, + RTAS_ERROR_LOG_MAX, ppc64_rma_size)); + for_each_possible_cpu(i) { + paca_ptrs[i]->mce_data_buf = mce_data_buf + + (RTAS_ERROR_LOG_MAX * i); + } } static void pseries_8259_cascade(struct irq_desc *desc) |