From: David S. Miller <davem@davemloft.net>
Date: Wed, 27 May 2009 05:37:25 +0000 (-0700)
Subject: sparc64: Defer cpu_data() setup until end of per-cpu data initialization.
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=b696fdc259f0d94348a9327bed352fac44d4883d;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

sparc64: Defer cpu_data() setup until end of per-cpu data initialization.

Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/arch/sparc/kernel/ds.c b/arch/sparc/kernel/ds.c
index 51b05c498877..4a700f4b79ce 100644
--- a/arch/sparc/kernel/ds.c
+++ b/arch/sparc/kernel/ds.c
@@ -544,6 +544,7 @@ static int __cpuinit dr_cpu_configure(struct ds_info *dp,
 			     resp_len, ncpus, mask,
 			     DR_CPU_STAT_CONFIGURED);
 
+	mdesc_populate_present_mask(mask);
 	mdesc_fill_in_cpu_data(mask);
 
 	for_each_cpu_mask(cpu, *mask) {
diff --git a/arch/sparc/kernel/mdesc.c b/arch/sparc/kernel/mdesc.c
index 6d2015e0e574..938da19dc065 100644
--- a/arch/sparc/kernel/mdesc.c
+++ b/arch/sparc/kernel/mdesc.c
@@ -861,7 +861,6 @@ void __cpuinit mdesc_fill_in_cpu_data(cpumask_t *mask)
 {
 	struct mdesc_handle *hp;
 
-	mdesc_populate_present_mask(mask);
 	mdesc_iterate_over_cpus(fill_in_one_cpu, NULL, mask);
 
 #ifdef CONFIG_SMP
diff --git a/arch/sparc/kernel/prom_64.c b/arch/sparc/kernel/prom_64.c
index 4d92f488fae1..fb06ac2bd38f 100644
--- a/arch/sparc/kernel/prom_64.c
+++ b/arch/sparc/kernel/prom_64.c
@@ -535,7 +535,6 @@ void __init of_fill_in_cpu_data(void)
 	if (tlb_type == hypervisor)
 		return;
 
-	of_populate_present_mask();
 	of_iterate_over_cpus(fill_in_one_cpu, 0);
 
 	smp_fill_in_sib_core_maps();
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index b20f253857b7..045fbb554a9c 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -1399,4 +1399,8 @@ void __init real_setup_per_cpu_areas(void)
 
 	/* Setup %g5 for the boot cpu.  */
 	__local_per_cpu_offset = __per_cpu_offset(smp_processor_id());
+
+	of_fill_in_cpu_data();
+	if (tlb_type == hypervisor)
+		mdesc_fill_in_cpu_data(CPU_MASK_ALL_PTR);
 }
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index 87fea94e5125..785f0a24fcbf 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -1799,20 +1799,16 @@ void __init paging_init(void)
 	if (tlb_type == hypervisor)
 		sun4v_ktsb_register();
 
-	/* We must setup the per-cpu areas before we pull in the
-	 * PROM and the MDESC.  The code there fills in cpu and
-	 * other information into per-cpu data structures.
-	 */
-	real_setup_per_cpu_areas();
-
 	prom_build_devicetree();
-	of_fill_in_cpu_data();
+	of_populate_present_mask();
 
 	if (tlb_type == hypervisor) {
 		sun4v_mdesc_init();
-		mdesc_fill_in_cpu_data(CPU_MASK_ALL_PTR);
+		mdesc_populate_present_mask(CPU_MASK_ALL_PTR);
 	}
 
+	real_setup_per_cpu_areas();
+
 	/* Once the OF device tree and MDESC have been setup, we know
 	 * the list of possible cpus.  Therefore we can allocate the
 	 * IRQ stacks.