1 files changed, 34 insertions, 20 deletions

diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index 6ff3cf506088..3065b472b95d 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -132,7 +132,7 @@ _GLOBAL(__secondary_hold)
         bne     100b
 
 #if defined(CONFIG_SMP) || defined(CONFIG_KEXEC)
-        LOAD_REG_IMMEDIATE(r4, .pSeries_secondary_smp_init)
+        LOAD_REG_IMMEDIATE(r4, .generic_secondary_smp_init)
         mtctr   r4
         mr      r3,r24
         bctr
@@ -1484,19 +1484,17 @@ fwnmi_data_area:
         . = 0x8000
 
 /*
- * On pSeries, secondary processors spin in the following code.
+ * On pSeries and most other platforms, secondary processors spin
+ * in the following code.
  * At entry, r3 = this processor's number (physical cpu id)
  */
-_GLOBAL(pSeries_secondary_smp_init)
+_GLOBAL(generic_secondary_smp_init)
         mr      r24,r3
         
         /* turn on 64-bit mode */
         bl      .enable_64b_mode
         isync
 
-        /* Copy some CPU settings from CPU 0 */
-        bl      .__restore_cpu_setup
-
         /* Set up a paca value for this processor. Since we have the
          * physical cpu id in r24, we need to search the pacas to find
          * which logical id maps to our physical one.
@@ -1522,15 +1520,28 @@ _GLOBAL(pSeries_secondary_smp_init)
                                         /* start.                        */
         sync
 
-        /* Create a temp kernel stack for use before relocation is on.  */
+#ifndef CONFIG_SMP
+        b       3b                      /* Never go on non-SMP           */
+#else
+        cmpwi   0,r23,0
+        beq     3b                      /* Loop until told to go         */
+
+        /* See if we need to call a cpu state restore handler */
+        LOAD_REG_IMMEDIATE(r23, cur_cpu_spec)
+        ld      r23,0(r23)
+        ld      r23,CPU_SPEC_RESTORE(r23)
+        cmpdi   0,r23,0
+        beq     4f
+        ld      r23,0(r23)
+        mtctr   r23
+        bctrl
+
+4:      /* Create a temp kernel stack for use before relocation is on.  */
         ld      r1,PACAEMERGSP(r13)
         subi    r1,r1,STACK_FRAME_OVERHEAD
 
-        cmpwi   0,r23,0
-#ifdef CONFIG_SMP
-        bne     .__secondary_start
+        b       .__secondary_start
 #endif
-        b       3b                      /* Loop until told to go         */
 
 #ifdef CONFIG_PPC_ISERIES
 _STATIC(__start_initialization_iSeries)
@@ -1611,7 +1622,16 @@ _GLOBAL(__start_initialization_multiplatform)
         bl      .enable_64b_mode
 
         /* Setup some critical 970 SPRs before switching MMU off */
-        bl      .__970_cpu_preinit
+        mfspr   r0,SPRN_PVR
+        srwi    r0,r0,16
+        cmpwi   r0,0x39         /* 970 */
+        beq     1f
+        cmpwi   r0,0x3c         /* 970FX */
+        beq     1f
+        cmpwi   r0,0x44         /* 970MP */
+        bne     2f
+1:      bl      .__cpu_preinit_ppc970
+2:
 
         /* Switch off MMU if not already */
         LOAD_REG_IMMEDIATE(r4, .__after_prom_start - KERNELBASE)
@@ -1728,7 +1748,7 @@ _STATIC(__after_prom_start)
 _GLOBAL(copy_and_flush)
         addi    r5,r5,-8
         addi    r6,r6,-8
-4:      li      r0,16                   /* Use the least common         */
+4:      li      r0,8                    /* Use the smallest common      */
                                         /* denominator cache line       */
                                         /* size.  This results in       */
                                         /* extra cache line flushes     */
@@ -1782,7 +1802,7 @@ _GLOBAL(pmac_secondary_start)
         isync
 
         /* Copy some CPU settings from CPU 0 */
-        bl      .__restore_cpu_setup
+        bl      .__restore_cpu_ppc970
 
         /* pSeries do that early though I don't think we really need it */
         mfmsr   r3
@@ -1932,12 +1952,6 @@ _STATIC(start_here_multiplatform)
         mr      r5,r26
         bl      .identify_cpu
 
-        /* Save some low level config HIDs of CPU0 to be copied to
-         * other CPUs later on, or used for suspend/resume
-         */
-        bl      .__save_cpu_setup
-        sync
-
         /* Do very early kernel initializations, including initial hash table,
          * stab and slb setup before we turn on relocation.     */