[PATCH] powerpc: merge code values for identifying platforms

This patch merges platform codes.  systemcfg->platform is no longer used,
systemcfg use in general is deprecated as much as possible (and renamed
_systemcfg before it gets completely moved elsewhere in a future patch),
_machine is now used on ppc64 along as ppc32.  Platform codes aren't gone
yet but we are getting a step closer. A bunch of asm code in head[_64].S
is also turned into C code.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 20 insertions, 1 deletions

diff --git a/arch/powerpc/mm/stab.c b/arch/powerpc/mm/stab.c
index fa325dbf98fc..cfbb4e1f966b 100644
--- a/arch/powerpc/mm/stab.c
+++ b/arch/powerpc/mm/stab.c
@@ -20,6 +20,7 @@
 #include <asm/cputable.h>
 #include <asm/lmb.h>
 #include <asm/abs_addr.h>
+#include <asm/firmware.h>
 
 struct stab_entry {
         unsigned long esid_data;
@@ -256,7 +257,7 @@ void stabs_alloc(void)
 
                 paca[cpu].stab_addr = newstab;
                 paca[cpu].stab_real = virt_to_abs(newstab);
-                printk(KERN_DEBUG "Segment table for CPU %d at 0x%lx "
+                printk(KERN_INFO "Segment table for CPU %d at 0x%lx "
                        "virtual, 0x%lx absolute\n",
                        cpu, paca[cpu].stab_addr, paca[cpu].stab_real);
         }
@@ -270,10 +271,28 @@ void stabs_alloc(void)
 void stab_initialize(unsigned long stab)
 {
         unsigned long vsid = get_kernel_vsid(KERNELBASE);
+        unsigned long stabreal;
 
         asm volatile("isync; slbia; isync":::"memory");
         make_ste(stab, GET_ESID(KERNELBASE), vsid);
 
         /* Order update */
         asm volatile("sync":::"memory");
+
+        /* Set ASR */
+        stabreal = get_paca()->stab_real | 0x1ul;
+
+#ifdef CONFIG_PPC_ISERIES
+        if (firmware_has_feature(FW_FEATURE_ISERIES)) {
+                HvCall1(HvCallBaseSetASR, stabreal);
+                return;
+        }
+#endif /* CONFIG_PPC_ISERIES */
+#ifdef CONFIG_PPC_PSERIES
+        if (platform_is_lpar()) {
+                plpar_hcall_norets(H_SET_ASR, stabreal);
+                return;
+        }
+#endif
+        mtspr(SPRN_ASR, stabreal);
 }