From: David S. Miller <davem@davemloft.net>
Date: Thu, 18 Jun 2009 08:44:19 +0000 (-0700)
Subject: sparc64: Fix UP bootup regression.
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=b99c6ebe8f53dce1f56f0d483f6a7c23edb19d4c;p=deliverable%2Flinux.git

sparc64: Fix UP bootup regression.

Commit b696fdc259f0d94348a9327bed352fac44d4883d ("sparc64: Defer
cpu_data() setup until end of per-cpu data initialization.") broke
bootup for UP builds because the cpu_data() initialization only
occurs in setup_per_cpu_areas() which is never compiled in nor
called in UP builds.

Fix this up by calling the setups directly from init_64.c when
non-SMP.

Reported-by: Alexander Beregalov <a.beregalov@gmail.com>
Tested-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index ca92e2f54e4d..ed6be6ba2f4e 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -1796,10 +1796,16 @@ void __init paging_init(void)
 
 	prom_build_devicetree();
 	of_populate_present_mask();
+#ifndef CONFIG_SMP
+	of_fill_in_cpu_data();
+#endif
 
 	if (tlb_type == hypervisor) {
 		sun4v_mdesc_init();
 		mdesc_populate_present_mask(cpu_all_mask);
+#ifndef CONFIG_SMP
+		mdesc_fill_in_cpu_data(cpu_all_mask);
+#endif
 	}
 
 	/* Once the OF device tree and MDESC have been setup, we know