4 files changed, 24 insertions, 24 deletions

diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index 5873073c9045..8eb8087383eb 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -68,15 +68,6 @@ extern void __restore_cpu_ppc970(void);
 #define COMMON_USER_BOOKE       (PPC_FEATURE_32 | PPC_FEATURE_HAS_MMU | \
                                  PPC_FEATURE_BOOKE)
 
-/* We only set the spe features if the kernel was compiled with
- * spe support
- */
-#ifdef CONFIG_SPE
-#define PPC_FEATURE_SPE_COMP    PPC_FEATURE_HAS_SPE
-#else
-#define PPC_FEATURE_SPE_COMP    0
-#endif
-
 static struct cpu_spec cpu_specs[] = {
 #ifdef CONFIG_PPC64
         {       /* Power3 */
@@ -1261,8 +1252,8 @@ static struct cpu_spec cpu_specs[] = {
                 /* xxx - galak: add CPU_FTR_MAYBE_CAN_DOZE */
                 .cpu_features           = CPU_FTRS_E200,
                 .cpu_user_features      = COMMON_USER_BOOKE |
-                        PPC_FEATURE_SPE_COMP |
-                        PPC_FEATURE_HAS_EFP_SINGLE |
+                        PPC_FEATURE_HAS_SPE_COMP |
+                        PPC_FEATURE_HAS_EFP_SINGLE_COMP |
                         PPC_FEATURE_UNIFIED_CACHE,
                 .dcache_bsize           = 32,
                 .platform               = "ppc5554",
@@ -1274,8 +1265,8 @@ static struct cpu_spec cpu_specs[] = {
                 /* xxx - galak: add CPU_FTR_MAYBE_CAN_DOZE */
                 .cpu_features           = CPU_FTRS_E500,
                 .cpu_user_features      = COMMON_USER_BOOKE |
-                        PPC_FEATURE_SPE_COMP |
-                        PPC_FEATURE_HAS_EFP_SINGLE,
+                        PPC_FEATURE_HAS_SPE_COMP |
+                        PPC_FEATURE_HAS_EFP_SINGLE_COMP,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .num_pmcs               = 4,
@@ -1290,9 +1281,9 @@ static struct cpu_spec cpu_specs[] = {
                 /* xxx - galak: add CPU_FTR_MAYBE_CAN_DOZE */
                 .cpu_features           = CPU_FTRS_E500_2,
                 .cpu_user_features      = COMMON_USER_BOOKE |
-                        PPC_FEATURE_SPE_COMP |
-                        PPC_FEATURE_HAS_EFP_SINGLE |
-                        PPC_FEATURE_HAS_EFP_DOUBLE,
+                        PPC_FEATURE_HAS_SPE_COMP |
+                        PPC_FEATURE_HAS_EFP_SINGLE_COMP |
+                        PPC_FEATURE_HAS_EFP_DOUBLE_COMP,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .num_pmcs               = 4,
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
index 4074c0b31453..21d889e63e87 100644
--- a/arch/powerpc/kernel/entry_32.S
+++ b/arch/powerpc/kernel/entry_32.S
@@ -504,9 +504,11 @@ BEGIN_FTR_SECTION
 END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
 #endif /* CONFIG_ALTIVEC */
 #ifdef CONFIG_SPE
+BEGIN_FTR_SECTION
         oris    r0,r0,MSR_SPE@h  /* Disable SPE */
         mfspr   r12,SPRN_SPEFSCR /* save spefscr register value */
         stw     r12,THREAD+THREAD_SPEFSCR(r2)
+END_FTR_SECTION_IFSET(CPU_FTR_SPE)
 #endif /* CONFIG_SPE */
         and.    r0,r0,r11       /* FP or altivec or SPE enabled? */
         beq+    1f
@@ -542,8 +544,10 @@ BEGIN_FTR_SECTION
 END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
 #endif /* CONFIG_ALTIVEC */
 #ifdef CONFIG_SPE
+BEGIN_FTR_SECTION
         lwz     r0,THREAD+THREAD_SPEFSCR(r2)
         mtspr   SPRN_SPEFSCR,r0         /* restore SPEFSCR reg */
+END_FTR_SECTION_IFSET(CPU_FTR_SPE)
 #endif /* CONFIG_SPE */
 
         lwz     r0,_CCR(r1)
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index e477c9d0498b..57c589c34147 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -669,9 +669,13 @@ int set_fpexc_mode(struct task_struct *tsk, unsigned int val)
          * mode (asyn, precise, disabled) for 'Classic' FP. */
         if (val & PR_FP_EXC_SW_ENABLE) {
 #ifdef CONFIG_SPE
-                tsk->thread.fpexc_mode = val &
-                        (PR_FP_EXC_SW_ENABLE | PR_FP_ALL_EXCEPT);
-                return 0;
+                if (cpu_has_feature(CPU_FTR_SPE)) {
+                        tsk->thread.fpexc_mode = val &
+                                (PR_FP_EXC_SW_ENABLE | PR_FP_ALL_EXCEPT);
+                        return 0;
+                } else {
+                        return -EINVAL;
+                }
 #else
                 return -EINVAL;
 #endif
@@ -697,7 +701,10 @@ int get_fpexc_mode(struct task_struct *tsk, unsigned long adr)
 
         if (tsk->thread.fpexc_mode & PR_FP_EXC_SW_ENABLE)
 #ifdef CONFIG_SPE
-                val = tsk->thread.fpexc_mode;
+                if (cpu_has_feature(CPU_FTR_SPE))
+                        val = tsk->thread.fpexc_mode;
+                else
+                        return -EINVAL;
 #else
                 return -EINVAL;
 #endif
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index 8a177bd9eab4..fb8866e0e35d 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -576,8 +576,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 #ifdef CONFIG_SPE
         case PTRACE_GETEVRREGS:
                 /* Get the child spe register state. */
-                if (child->thread.regs->msr & MSR_SPE)
-                        giveup_spe(child);
+                flush_spe_to_thread(child);
                 ret = get_evrregs((unsigned long __user *)data, child);
                 break;
 
@@ -585,8 +584,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                 /* Set the child spe register state. */
                 /* this is to clear the MSR_SPE bit to force a reload
                  * of register state from memory */
-                if (child->thread.regs->msr & MSR_SPE)
-                        giveup_spe(child);
+                flush_spe_to_thread(child);
                 ret = set_evrregs(child, (unsigned long __user *)data);
                 break;
 #endif