[SPARC64]: Kill all external references to sp_banks[]
Thus, we can mark sp_banks[] static in arch/sparc64/mm/init.c
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c
index 1aa1599..eeb1e83 100644
--- a/arch/sparc64/kernel/traps.c
+++ b/arch/sparc64/kernel/traps.c
@@ -757,26 +757,12 @@
ecache_flush_size = (2 * largest_size);
ecache_flush_linesize = smallest_linesize;
- /* Discover a physically contiguous chunk of physical
- * memory in 'sp_banks' of size ecache_flush_size calculated
- * above. Store the physical base of this area at
- * ecache_flush_physbase.
- */
- for (node = 0; ; node++) {
- if (sp_banks[node].num_bytes == 0)
- break;
- if (sp_banks[node].num_bytes >= ecache_flush_size) {
- ecache_flush_physbase = sp_banks[node].base_addr;
- break;
- }
- }
+ ecache_flush_physbase = find_ecache_flush_span(ecache_flush_size);
- /* Note: Zero would be a valid value of ecache_flush_physbase so
- * don't use that as the success test. :-)
- */
- if (sp_banks[node].num_bytes == 0) {
+ if (ecache_flush_physbase == ~0UL) {
prom_printf("cheetah_ecache_flush_init: Cannot find %d byte "
- "contiguous physical memory.\n", ecache_flush_size);
+ "contiguous physical memory.\n",
+ ecache_flush_size);
prom_halt();
}
@@ -1345,16 +1331,9 @@
/* Return non-zero if PADDR is a valid physical memory address. */
static int cheetah_check_main_memory(unsigned long paddr)
{
- int i;
+ unsigned long vaddr = PAGE_OFFSET + paddr;
- for (i = 0; ; i++) {
- if (sp_banks[i].num_bytes == 0)
- break;
- if (paddr >= sp_banks[i].base_addr &&
- paddr < (sp_banks[i].base_addr + sp_banks[i].num_bytes))
- return 1;
- }
- return 0;
+ return kern_addr_valid(vaddr);
}
void cheetah_cee_handler(struct pt_regs *regs, unsigned long afsr, unsigned long afar)
diff --git a/arch/sparc64/mm/fault.c b/arch/sparc64/mm/fault.c
index 80793d6..31fbc67 100644
--- a/arch/sparc64/mm/fault.c
+++ b/arch/sparc64/mm/fault.c
@@ -32,8 +32,6 @@
#define ELEMENTS(arr) (sizeof (arr)/sizeof (arr[0]))
-extern struct sparc_phys_banks sp_banks[SPARC_PHYS_BANKS];
-
/*
* To debug kernel to catch accesses to certain virtual/physical addresses.
* Mode = 0 selects physical watchpoints, mode = 1 selects virtual watchpoints.
diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c
index 63a7b9b..48851a2 100644
--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -41,7 +41,14 @@
extern void device_scan(void);
-struct sparc_phys_banks sp_banks[SPARC_PHYS_BANKS];
+struct sparc_phys_banks {
+ unsigned long base_addr;
+ unsigned long num_bytes;
+};
+
+#define SPARC_PHYS_BANKS 32
+
+static struct sparc_phys_banks sp_banks[SPARC_PHYS_BANKS];
unsigned long *sparc64_valid_addr_bitmap __read_mostly;
@@ -1425,6 +1432,20 @@
}
#endif
+unsigned long __init find_ecache_flush_span(unsigned long size)
+{
+ unsigned long i;
+
+ for (i = 0; ; i++) {
+ if (sp_banks[i].num_bytes == 0)
+ break;
+ if (sp_banks[i].num_bytes >= size)
+ return sp_banks[i].base_addr;
+ }
+
+ return ~0UL;
+}
+
static void __init prom_probe_memory(void)
{
struct linux_mlist_p1275 *mlist;