powerpc: Free up some CPU feature bits by moving out MMU-related features

Some of the 64bit PPC CPU features are MMU-related, so this patch moves
them to MMU_FTR_ bits.  All cpu_has_feature()-style tests are moved to
mmu_has_feature(), and seven feature bits are freed as a result.

Signed-off-by: Matt Evans <matt@ozlabs.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

7 files changed, 25 insertions, 25 deletions

diff --git a/arch/powerpc/mm/hash_low_64.S b/arch/powerpc/mm/hash_low_64.S
index 5b7dd4ea02b5..a242b5d7cbe4 100644
--- a/arch/powerpc/mm/hash_low_64.S
+++ b/arch/powerpc/mm/hash_low_64.S
@@ -118,7 +118,7 @@ _GLOBAL(__hash_page_4K)
 BEGIN_FTR_SECTION
         cmpdi   r9,0                    /* check segment size */
         bne     3f
-END_FTR_SECTION_IFSET(CPU_FTR_1T_SEGMENT)
+END_MMU_FTR_SECTION_IFSET(MMU_FTR_1T_SEGMENT)
         /* Calc va and put it in r29 */
         rldicr  r29,r5,28,63-28
         rldicl  r3,r3,0,36
@@ -401,7 +401,7 @@ _GLOBAL(__hash_page_4K)
 BEGIN_FTR_SECTION
         cmpdi   r9,0                    /* check segment size */
         bne     3f
-END_FTR_SECTION_IFSET(CPU_FTR_1T_SEGMENT)
+END_MMU_FTR_SECTION_IFSET(MMU_FTR_1T_SEGMENT)
         /* Calc va and put it in r29 */
         rldicr  r29,r5,28,63-28         /* r29 = (vsid << 28) */
         rldicl  r3,r3,0,36              /* r3 = (ea & 0x0fffffff) */
@@ -715,7 +715,7 @@ BEGIN_FTR_SECTION
         andi.   r0,r31,_PAGE_NO_CACHE
         /* If so, bail out and refault as a 4k page */
         bne-    ht64_bail_ok
-END_FTR_SECTION_IFCLR(CPU_FTR_CI_LARGE_PAGE)
+END_MMU_FTR_SECTION_IFCLR(MMU_FTR_CI_LARGE_PAGE)
         /* Prepare new PTE value (turn access RW into DIRTY, then
          * add BUSY and ACCESSED)
          */
@@ -736,7 +736,7 @@ END_FTR_SECTION_IFCLR(CPU_FTR_CI_LARGE_PAGE)
 BEGIN_FTR_SECTION
         cmpdi   r9,0                    /* check segment size */
         bne     3f
-END_FTR_SECTION_IFSET(CPU_FTR_1T_SEGMENT)
+END_MMU_FTR_SECTION_IFSET(MMU_FTR_1T_SEGMENT)
         /* Calc va and put it in r29 */
         rldicr  r29,r5,28,63-28
         rldicl  r3,r3,0,36
diff --git a/arch/powerpc/mm/hash_native_64.c b/arch/powerpc/mm/hash_native_64.c
index 784a400e0781..c23eef2b81a6 100644
--- a/arch/powerpc/mm/hash_native_64.c
+++ b/arch/powerpc/mm/hash_native_64.c
@@ -98,8 +98,8 @@ static inline void __tlbiel(unsigned long va, int psize, int ssize)
 
 static inline void tlbie(unsigned long va, int psize, int ssize, int local)
 {
-        unsigned int use_local = local && cpu_has_feature(CPU_FTR_TLBIEL);
-        int lock_tlbie = !cpu_has_feature(CPU_FTR_LOCKLESS_TLBIE);
+        unsigned int use_local = local && mmu_has_feature(MMU_FTR_TLBIEL);
+        int lock_tlbie = !mmu_has_feature(MMU_FTR_LOCKLESS_TLBIE);
 
         if (use_local)
                 use_local = mmu_psize_defs[psize].tlbiel;
@@ -503,7 +503,7 @@ static void native_flush_hash_range(unsigned long number, int local)
                 } pte_iterate_hashed_end();
         }
 
-        if (cpu_has_feature(CPU_FTR_TLBIEL) &&
+        if (mmu_has_feature(MMU_FTR_TLBIEL) &&
             mmu_psize_defs[psize].tlbiel && local) {
                 asm volatile("ptesync":::"memory");
                 for (i = 0; i < number; i++) {
@@ -517,7 +517,7 @@ static void native_flush_hash_range(unsigned long number, int local)
                 }
                 asm volatile("ptesync":::"memory");
         } else {
-                int lock_tlbie = !cpu_has_feature(CPU_FTR_LOCKLESS_TLBIE);
+                int lock_tlbie = !mmu_has_feature(MMU_FTR_LOCKLESS_TLBIE);
 
                 if (lock_tlbie)
                         raw_spin_lock(&native_tlbie_lock);
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index d95d8f484d2f..26b2872b3d00 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -259,11 +259,11 @@ static int __init htab_dt_scan_seg_sizes(unsigned long node,
         for (; size >= 4; size -= 4, ++prop) {
                 if (prop[0] == 40) {
                         DBG("1T segment support detected\n");
-                        cur_cpu_spec->cpu_features |= CPU_FTR_1T_SEGMENT;
+                        cur_cpu_spec->mmu_features |= MMU_FTR_1T_SEGMENT;
                         return 1;
                 }
         }
-        cur_cpu_spec->cpu_features &= ~CPU_FTR_NO_SLBIE_B;
+        cur_cpu_spec->mmu_features &= ~MMU_FTR_NO_SLBIE_B;
         return 0;
 }
 
@@ -289,7 +289,7 @@ static int __init htab_dt_scan_page_sizes(unsigned long node,
         if (prop != NULL) {
                 DBG("Page sizes from device-tree:\n");
                 size /= 4;
-                cur_cpu_spec->cpu_features &= ~(CPU_FTR_16M_PAGE);
+                cur_cpu_spec->mmu_features &= ~(MMU_FTR_16M_PAGE);
                 while(size > 0) {
                         unsigned int shift = prop[0];
                         unsigned int slbenc = prop[1];
@@ -317,7 +317,7 @@ static int __init htab_dt_scan_page_sizes(unsigned long node,
                                 break;
                         case 0x18:
                                 idx = MMU_PAGE_16M;
-                                cur_cpu_spec->cpu_features |= CPU_FTR_16M_PAGE;
+                                cur_cpu_spec->mmu_features |= MMU_FTR_16M_PAGE;
                                 break;
                         case 0x22:
                                 idx = MMU_PAGE_16G;
@@ -412,7 +412,7 @@ static void __init htab_init_page_sizes(void)
          * Not in the device-tree, let's fallback on known size
          * list for 16M capable GP & GR
          */
-        if (cpu_has_feature(CPU_FTR_16M_PAGE))
+        if (mmu_has_feature(MMU_FTR_16M_PAGE))
                 memcpy(mmu_psize_defs, mmu_psize_defaults_gp,
                        sizeof(mmu_psize_defaults_gp));
  found:
@@ -442,7 +442,7 @@ static void __init htab_init_page_sizes(void)
                 mmu_vmalloc_psize = MMU_PAGE_64K;
                 if (mmu_linear_psize == MMU_PAGE_4K)
                         mmu_linear_psize = MMU_PAGE_64K;
-                if (cpu_has_feature(CPU_FTR_CI_LARGE_PAGE)) {
+                if (mmu_has_feature(MMU_FTR_CI_LARGE_PAGE)) {
                         /*
                          * Don't use 64k pages for ioremap on pSeries, since
                          * that would stop us accessing the HEA ethernet.
@@ -608,7 +608,7 @@ static void __init htab_initialize(void)
         /* Initialize page sizes */
         htab_init_page_sizes();
 
-        if (cpu_has_feature(CPU_FTR_1T_SEGMENT)) {
+        if (mmu_has_feature(MMU_FTR_1T_SEGMENT)) {
                 mmu_kernel_ssize = MMU_SEGSIZE_1T;
                 mmu_highuser_ssize = MMU_SEGSIZE_1T;
                 printk(KERN_INFO "Using 1TB segments\n");
@@ -749,7 +749,7 @@ void __init early_init_mmu(void)
 
         /* Initialize stab / SLB management except on iSeries
          */
-        if (cpu_has_feature(CPU_FTR_SLB))
+        if (mmu_has_feature(MMU_FTR_SLB))
                 slb_initialize();
         else if (!firmware_has_feature(FW_FEATURE_ISERIES))
                 stab_initialize(get_paca()->stab_real);
@@ -766,7 +766,7 @@ void __cpuinit early_init_mmu_secondary(void)
          * in real mode on pSeries and we want a virtual address on
          * iSeries anyway
          */
-        if (cpu_has_feature(CPU_FTR_SLB))
+        if (mmu_has_feature(MMU_FTR_SLB))
                 slb_initialize();
         else
                 stab_initialize(get_paca()->stab_addr);
diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c
index 9bb249c3046e..0b9a5c1901b9 100644
--- a/arch/powerpc/mm/hugetlbpage.c
+++ b/arch/powerpc/mm/hugetlbpage.c
@@ -529,7 +529,7 @@ static int __init hugetlbpage_init(void)
 {
         int psize;
 
-        if (!cpu_has_feature(CPU_FTR_16M_PAGE))
+        if (!mmu_has_feature(MMU_FTR_16M_PAGE))
                 return -ENODEV;
 
         for (psize = 0; psize < MMU_PAGE_COUNT; ++psize) {
diff --git a/arch/powerpc/mm/slb.c b/arch/powerpc/mm/slb.c
index 5500712781d4..e22276cb67a4 100644
--- a/arch/powerpc/mm/slb.c
+++ b/arch/powerpc/mm/slb.c
@@ -167,7 +167,7 @@ static inline int esids_match(unsigned long addr1, unsigned long addr2)
         int esid_1t_count;
 
         /* System is not 1T segment size capable. */
-        if (!cpu_has_feature(CPU_FTR_1T_SEGMENT))
+        if (!mmu_has_feature(MMU_FTR_1T_SEGMENT))
                 return (GET_ESID(addr1) == GET_ESID(addr2));
 
         esid_1t_count = (((addr1 >> SID_SHIFT_1T) != 0) +
@@ -202,7 +202,7 @@ void switch_slb(struct task_struct *tsk, struct mm_struct *mm)
          */
         hard_irq_disable();
         offset = get_paca()->slb_cache_ptr;
-        if (!cpu_has_feature(CPU_FTR_NO_SLBIE_B) &&
+        if (!mmu_has_feature(MMU_FTR_NO_SLBIE_B) &&
             offset <= SLB_CACHE_ENTRIES) {
                 int i;
                 asm volatile("isync" : : : "memory");
diff --git a/arch/powerpc/mm/slb_low.S b/arch/powerpc/mm/slb_low.S
index 95ce35581696..ef653dc95b65 100644
--- a/arch/powerpc/mm/slb_low.S
+++ b/arch/powerpc/mm/slb_low.S
@@ -58,7 +58,7 @@ _GLOBAL(slb_miss_kernel_load_linear)
         li      r11,0
 BEGIN_FTR_SECTION
         b       slb_finish_load
-END_FTR_SECTION_IFCLR(CPU_FTR_1T_SEGMENT)
+END_MMU_FTR_SECTION_IFCLR(MMU_FTR_1T_SEGMENT)
         b       slb_finish_load_1T
 
 1:
@@ -87,7 +87,7 @@ _GLOBAL(slb_miss_kernel_load_vmemmap)
 6:
 BEGIN_FTR_SECTION
         b       slb_finish_load
-END_FTR_SECTION_IFCLR(CPU_FTR_1T_SEGMENT)
+END_MMU_FTR_SECTION_IFCLR(MMU_FTR_1T_SEGMENT)
         b       slb_finish_load_1T
 
 0:      /* user address: proto-VSID = context << 15 | ESID. First check
@@ -138,11 +138,11 @@ END_FTR_SECTION_IFCLR(CPU_FTR_1T_SEGMENT)
         ld      r9,PACACONTEXTID(r13)
 BEGIN_FTR_SECTION
         cmpldi  r10,0x1000
-END_FTR_SECTION_IFSET(CPU_FTR_1T_SEGMENT)
+END_MMU_FTR_SECTION_IFSET(MMU_FTR_1T_SEGMENT)
         rldimi  r10,r9,USER_ESID_BITS,0
 BEGIN_FTR_SECTION
         bge     slb_finish_load_1T
-END_FTR_SECTION_IFSET(CPU_FTR_1T_SEGMENT)
+END_MMU_FTR_SECTION_IFSET(MMU_FTR_1T_SEGMENT)
         b       slb_finish_load
 
 8:      /* invalid EA */
diff --git a/arch/powerpc/mm/stab.c b/arch/powerpc/mm/stab.c
index 446a01842a73..41e31642a86a 100644
--- a/arch/powerpc/mm/stab.c
+++ b/arch/powerpc/mm/stab.c
@@ -243,7 +243,7 @@ void __init stabs_alloc(void)
 {
         int cpu;
 
-        if (cpu_has_feature(CPU_FTR_SLB))
+        if (mmu_has_feature(MMU_FTR_SLB))
                 return;
 
         for_each_possible_cpu(cpu) {