[SPARC64]: Move phys_base, kern_{base,size}, and sp_banks[] init to paging_init
Also, move prom_probe_memory() into arch/sparc64/mm/init.c
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c
index 9f6ca62..63a7b9b 100644
--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -1425,6 +1425,50 @@
}
#endif
+static void __init prom_probe_memory(void)
+{
+ struct linux_mlist_p1275 *mlist;
+ unsigned long bytes, base_paddr, tally;
+ int i;
+
+ i = 0;
+ mlist = *prom_meminfo()->p1275_available;
+ bytes = tally = mlist->num_bytes;
+ base_paddr = mlist->start_adr;
+
+ sp_banks[0].base_addr = base_paddr;
+ sp_banks[0].num_bytes = bytes;
+
+ while (mlist->theres_more != (void *) 0) {
+ i++;
+ mlist = mlist->theres_more;
+ bytes = mlist->num_bytes;
+ tally += bytes;
+ if (i >= SPARC_PHYS_BANKS-1) {
+ printk ("The machine has more banks than "
+ "this kernel can support\n"
+ "Increase the SPARC_PHYS_BANKS "
+ "setting (currently %d)\n",
+ SPARC_PHYS_BANKS);
+ i = SPARC_PHYS_BANKS-1;
+ break;
+ }
+
+ sp_banks[i].base_addr = mlist->start_adr;
+ sp_banks[i].num_bytes = mlist->num_bytes;
+ }
+
+ i++;
+ sp_banks[i].base_addr = 0xdeadbeefbeefdeadUL;
+ sp_banks[i].num_bytes = 0;
+
+ /* Now mask all bank sizes on a page boundary, it is all we can
+ * use anyways.
+ */
+ for (i = 0; sp_banks[i].num_bytes != 0; i++)
+ sp_banks[i].num_bytes &= PAGE_MASK;
+}
+
/* paging_init() sets up the page tables */
extern void cheetah_ecache_flush_init(void);
@@ -1435,7 +1479,23 @@
void __init paging_init(void)
{
unsigned long end_pfn, pages_avail, shift;
- unsigned long real_end;
+ unsigned long real_end, i;
+
+ prom_probe_memory();
+
+ phys_base = 0xffffffffffffffffUL;
+ for (i = 0; sp_banks[i].num_bytes != 0; i++) {
+ unsigned long top;
+
+ if (sp_banks[i].base_addr < phys_base)
+ phys_base = sp_banks[i].base_addr;
+ top = sp_banks[i].base_addr +
+ sp_banks[i].num_bytes;
+ }
+ pfn_base = phys_base >> PAGE_SHIFT;
+
+ kern_base = (prom_boot_mapping_phys_low >> 22UL) << 22UL;
+ kern_size = (unsigned long)&_end - (unsigned long)KERNBASE;
set_bit(0, mmu_context_bmap);