1 files changed, 28 insertions, 14 deletions

diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 31867a701fcb..a6398fbe530d 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -133,9 +133,9 @@ void pseries_8259_cascade(unsigned int irq, struct irq_desc *desc,
 static void __init pseries_mpic_init_IRQ(void)
 {
         struct device_node *np, *old, *cascade = NULL;
-        unsigned int *addrp;
+        const unsigned int *addrp;
         unsigned long intack = 0;
-        unsigned int *opprop;
+        const unsigned int *opprop;
         unsigned long openpic_addr = 0;
         unsigned int cascade_irq;
         int naddr, n, i, opplen;
@@ -143,7 +143,7 @@ static void __init pseries_mpic_init_IRQ(void)
 
         np = of_find_node_by_path("/");
         naddr = prom_n_addr_cells(np);
-        opprop = (unsigned int *) get_property(np, "platform-open-pic", &opplen);
+        opprop = get_property(np, "platform-open-pic", &opplen);
         if (opprop != 0) {
                 openpic_addr = of_read_number(opprop, naddr);
                 printk(KERN_DEBUG "OpenPIC addr: %lx\n", openpic_addr);
@@ -192,7 +192,7 @@ static void __init pseries_mpic_init_IRQ(void)
                         break;
                 if (strcmp(np->name, "pci") != 0)
                         continue;
-                addrp = (u32 *)get_property(np, "8259-interrupt-acknowledge",
+                addrp = get_property(np, "8259-interrupt-acknowledge",
                                             NULL);
                 if (addrp == NULL)
                         continue;
@@ -223,23 +223,37 @@ static void pseries_lpar_enable_pmcs(void)
 }
 
 #ifdef CONFIG_KEXEC
-static void pseries_kexec_cpu_down_mpic(int crash_shutdown, int secondary)
-{
-        mpic_teardown_this_cpu(secondary);
-}
-
-static void pseries_kexec_cpu_down_xics(int crash_shutdown, int secondary)
+static void pseries_kexec_cpu_down(int crash_shutdown, int secondary)
 {
         /* Don't risk a hypervisor call if we're crashing */
         if (firmware_has_feature(FW_FEATURE_SPLPAR) && !crash_shutdown) {
-                unsigned long vpa = __pa(get_lppaca());
+                unsigned long addr;
 
-                if (unregister_vpa(hard_smp_processor_id(), vpa)) {
+                addr = __pa(get_slb_shadow());
+                if (unregister_slb_shadow(hard_smp_processor_id(), addr))
+                        printk("SLB shadow buffer deregistration of "
+                               "cpu %u (hw_cpu_id %d) failed\n",
+                               smp_processor_id(),
+                               hard_smp_processor_id());
+
+                addr = __pa(get_lppaca());
+                if (unregister_vpa(hard_smp_processor_id(), addr)) {
                         printk("VPA deregistration of cpu %u (hw_cpu_id %d) "
                                         "failed\n", smp_processor_id(),
                                         hard_smp_processor_id());
                 }
         }
+}
+
+static void pseries_kexec_cpu_down_mpic(int crash_shutdown, int secondary)
+{
+        pseries_kexec_cpu_down(crash_shutdown, secondary);
+        mpic_teardown_this_cpu(secondary);
+}
+
+static void pseries_kexec_cpu_down_xics(int crash_shutdown, int secondary)
+{
+        pseries_kexec_cpu_down(crash_shutdown, secondary);
         xics_teardown_cpu(secondary);
 }
 #endif /* CONFIG_KEXEC */
@@ -247,11 +261,11 @@ static void pseries_kexec_cpu_down_xics(int crash_shutdown, int secondary)
 static void __init pseries_discover_pic(void)
 {
         struct device_node *np;
-        char *typep;
+        const char *typep;
 
         for (np = NULL; (np = of_find_node_by_name(np,
                                                    "interrupt-controller"));) {
-                typep = (char *)get_property(np, "compatible", NULL);
+                typep = get_property(np, "compatible", NULL);
                 if (strstr(typep, "open-pic")) {
                         pSeries_mpic_node = of_node_get(np);
                         ppc_md.init_IRQ       = pseries_mpic_init_IRQ;