Merge tag 'xfs-4.12-fixes-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

[karo-tx-linux.git] / arch / sparc / kernel / irq_64.c

diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c
index 4d0248aa0928695597161d93f325a49311b43e2c..99dd133a029f06528f78b2b811d81c97fc7cf9f4 100644 (file)
--- a/arch/sparc/kernel/irq_64.c
+++ b/arch/sparc/kernel/irq_64.c
@@ -1034,17 +1034,26 @@ static void __init init_cpu_send_mondo_info(struct trap_per_cpu *tb)
 {
 #ifdef CONFIG_SMP
        unsigned long page;
+       void *mondo, *p;
 
-       BUILD_BUG_ON((NR_CPUS * sizeof(u16)) > (PAGE_SIZE - 64));
+       BUILD_BUG_ON((NR_CPUS * sizeof(u16)) > PAGE_SIZE);
+
+       /* Make sure mondo block is 64byte aligned */
+       p = kzalloc(127, GFP_KERNEL);
+       if (!p) {
+               prom_printf("SUN4V: Error, cannot allocate mondo block.\n");
+               prom_halt();
+       }
+       mondo = (void *)(((unsigned long)p + 63) & ~0x3f);
+       tb->cpu_mondo_block_pa = __pa(mondo);
 
        page = get_zeroed_page(GFP_KERNEL);
        if (!page) {
-               prom_printf("SUN4V: Error, cannot allocate cpu mondo page.\n");
+               prom_printf("SUN4V: Error, cannot allocate cpu list page.\n");
                prom_halt();
        }
 
-       tb->cpu_mondo_block_pa = __pa(page);
-       tb->cpu_list_pa = __pa(page + 64);
+       tb->cpu_list_pa = __pa(page);
 #endif
 }