[PATCH] ppc64: Remove physbase from the lmb_property struct

We no longer need the lmb code to know about abs and phys addresses, so
remove the physbase variable from the lmb_property struct.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

4 files changed, 14 insertions, 40 deletions

diff --git a/arch/ppc64/kernel/lmb.c b/arch/ppc64/kernel/lmb.c
index 111da736652..6ed6312d848 100644
--- a/arch/ppc64/kernel/lmb.c
+++ b/arch/ppc64/kernel/lmb.c
@@ -37,8 +37,6 @@ void lmb_dump_all(void)
         for (i=0; i < lmb.memory.cnt ;i++) {
                 udbg_printf("    memory.region[0x%x].base       = 0x%lx\n",
                             i, lmb.memory.region[i].base);
-                udbg_printf("                 .physbase = 0x%lx\n",
-                            lmb.memory.region[i].physbase);
                 udbg_printf("                 .size     = 0x%lx\n",
                             lmb.memory.region[i].size);
         }
@@ -50,8 +48,6 @@ void lmb_dump_all(void)
         for (i=0; i < lmb.reserved.cnt ;i++) {
                 udbg_printf("    reserved.region[0x%x].base       = 0x%lx\n",
                             i, lmb.reserved.region[i].base);
-                udbg_printf("                 .physbase = 0x%lx\n",
-                            lmb.reserved.region[i].physbase);
                 udbg_printf("                 .size     = 0x%lx\n",
                             lmb.reserved.region[i].size);
         }
@@ -97,7 +93,6 @@ lmb_coalesce_regions(struct lmb_region *rgn, unsigned long r1, unsigned long r2)
         rgn->region[r1].size += rgn->region[r2].size;
         for (i=r2; i < rgn->cnt-1; i++) {
                 rgn->region[i].base = rgn->region[i+1].base;
-                rgn->region[i].physbase = rgn->region[i+1].physbase;
                 rgn->region[i].size = rgn->region[i+1].size;
         }
         rgn->cnt--;
@@ -127,21 +122,12 @@ lmb_analyze(void)
         unsigned long i;
         unsigned long mem_size = 0;
         unsigned long size_mask = 0;
-#ifdef CONFIG_MSCHUNKS
-        unsigned long physbase = 0;
-#endif
 
         for (i=0; i < lmb.memory.cnt; i++) {
                 unsigned long lmb_size;
 
                 lmb_size = lmb.memory.region[i].size;
 
-#ifdef CONFIG_MSCHUNKS
-                lmb.memory.region[i].physbase = physbase;
-                physbase += lmb_size;
-#else
-                lmb.memory.region[i].physbase = lmb.memory.region[i].base;
-#endif
                 mem_size += lmb_size;
                 size_mask |= lmb_size;
         }
@@ -164,7 +150,6 @@ lmb_add_region(struct lmb_region *rgn, unsigned long base, unsigned long size)
                 adjacent = lmb_addrs_adjacent(base,size,rgnbase,rgnsize);
                 if ( adjacent > 0 ) {
                         rgn->region[i].base -= size;
-                        rgn->region[i].physbase -= size;
                         rgn->region[i].size += size;
                         coalesced++;
                         break;
@@ -191,11 +176,9 @@ lmb_add_region(struct lmb_region *rgn, unsigned long base, unsigned long size)
         for (i=rgn->cnt-1; i >= 0; i--) {
                 if (base < rgn->region[i].base) {
                         rgn->region[i+1].base = rgn->region[i].base;
-                        rgn->region[i+1].physbase = rgn->region[i].physbase;
                         rgn->region[i+1].size = rgn->region[i].size;
                 }  else {
                         rgn->region[i+1].base = base;
-                        rgn->region[i+1].physbase = lmb_abs_to_phys(base);
                         rgn->region[i+1].size = size;
                         break;
                 }
@@ -304,13 +287,7 @@ lmb_end_of_DRAM(void)
 {
         int idx = lmb.memory.cnt - 1;
 
-#ifdef CONFIG_MSCHUNKS
-        return (lmb.memory.region[idx].physbase + lmb.memory.region[idx].size);
-#else
         return (lmb.memory.region[idx].base + lmb.memory.region[idx].size);
-#endif /* CONFIG_MSCHUNKS */
-
-        return 0;
 }
 
 /*
diff --git a/arch/ppc64/mm/hash_utils.c b/arch/ppc64/mm/hash_utils.c
index 65d6e852794..09475c8edf7 100644
--- a/arch/ppc64/mm/hash_utils.c
+++ b/arch/ppc64/mm/hash_utils.c
@@ -210,7 +210,7 @@ void __init htab_initialize(void)
 
         /* create bolted the linear mapping in the hash table */
         for (i=0; i < lmb.memory.cnt; i++) {
-                base = lmb.memory.region[i].physbase + KERNELBASE;
+                base = lmb.memory.region[i].base + KERNELBASE;
                 size = lmb.memory.region[i].size;
 
                 DBG("creating mapping for region: %lx : %lx\n", base, size);
diff --git a/arch/ppc64/mm/init.c b/arch/ppc64/mm/init.c
index a16cf12c586..c02dc9809ca 100644
--- a/arch/ppc64/mm/init.c
+++ b/arch/ppc64/mm/init.c
@@ -482,9 +482,9 @@ void __init mm_init_ppc64(void)
         for (i = 1; i < lmb.memory.cnt; i++) {
                 unsigned long base, prevbase, prevsize;
 
-                prevbase = lmb.memory.region[i-1].physbase;
+                prevbase = lmb.memory.region[i-1].base;
                 prevsize = lmb.memory.region[i-1].size;
-                base = lmb.memory.region[i].physbase;
+                base = lmb.memory.region[i].base;
                 if (base > (prevbase + prevsize)) {
                         io_hole_start = prevbase + prevsize;
                         io_hole_size = base  - (prevbase + prevsize);
@@ -511,11 +511,8 @@ int page_is_ram(unsigned long pfn)
         for (i=0; i < lmb.memory.cnt; i++) {
                 unsigned long base;
 
-#ifdef CONFIG_MSCHUNKS
-                base = lmb.memory.region[i].physbase;
-#else
                 base = lmb.memory.region[i].base;
-#endif
+
                 if ((paddr >= base) &&
                         (paddr < (base + lmb.memory.region[i].size))) {
                         return 1;
@@ -556,25 +553,25 @@ void __init do_init_bootmem(void)
          * present.
          */
         for (i=0; i < lmb.memory.cnt; i++) {
-                unsigned long physbase, size;
+                unsigned long base, size;
                 unsigned long start_pfn, end_pfn;
 
-                physbase = lmb.memory.region[i].physbase;
+                base = lmb.memory.region[i].base;
                 size = lmb.memory.region[i].size;
 
-                start_pfn = physbase >> PAGE_SHIFT;
+                start_pfn = base >> PAGE_SHIFT;
                 end_pfn = start_pfn + (size >> PAGE_SHIFT);
                 memory_present(0, start_pfn, end_pfn);
 
-                free_bootmem(physbase, size);
+                free_bootmem(base, size);
         }
 
         /* reserve the sections we're already using */
         for (i=0; i < lmb.reserved.cnt; i++) {
-                unsigned long physbase = lmb.reserved.region[i].physbase;
+                unsigned long base = lmb.reserved.region[i].base;
                 unsigned long size = lmb.reserved.region[i].size;
 
-                reserve_bootmem(physbase, size);
+                reserve_bootmem(base, size);
         }
 }
 
@@ -613,10 +610,10 @@ static int __init setup_kcore(void)
         int i;
 
         for (i=0; i < lmb.memory.cnt; i++) {
-                unsigned long physbase, size;
+                unsigned long base, size;
                 struct kcore_list *kcore_mem;
 
-                physbase = lmb.memory.region[i].physbase;
+                base = lmb.memory.region[i].base;
                 size = lmb.memory.region[i].size;
 
                 /* GFP_ATOMIC to avoid might_sleep warnings during boot */
@@ -624,7 +621,7 @@ static int __init setup_kcore(void)
                 if (!kcore_mem)
                         panic("mem_init: kmalloc failed\n");
 
-                kclist_add(kcore_mem, __va(physbase), size);
+                kclist_add(kcore_mem, __va(base), size);
         }
 
         kclist_add(&kcore_vmem, (void *)VMALLOC_START, VMALLOC_END-VMALLOC_START);
diff --git a/arch/ppc64/mm/numa.c b/arch/ppc64/mm/numa.c
index 0b191f2de01..c3116f0d788 100644
--- a/arch/ppc64/mm/numa.c
+++ b/arch/ppc64/mm/numa.c
@@ -671,7 +671,7 @@ new_range:
                  * Mark reserved regions on this node
                  */
                 for (i = 0; i < lmb.reserved.cnt; i++) {
-                        unsigned long physbase = lmb.reserved.region[i].physbase;
+                        unsigned long physbase = lmb.reserved.region[i].base;
                         unsigned long size = lmb.reserved.region[i].size;
 
                         if (pa_to_nid(physbase) != nid &&