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Diffstat (limited to 'arch/powerpc/mm/mem.c')
-rw-r--r--arch/powerpc/mm/mem.c35
1 files changed, 32 insertions, 3 deletions
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 29d4dde65c4..c781bbcf733 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -249,7 +249,7 @@ static int __init mark_nonram_nosave(void)
*/
void __init paging_init(void)
{
- unsigned long total_ram = memblock_phys_mem_size();
+ unsigned long long total_ram = memblock_phys_mem_size();
phys_addr_t top_of_ram = memblock_end_of_DRAM();
unsigned long max_zone_pfns[MAX_NR_ZONES];
@@ -269,7 +269,7 @@ void __init paging_init(void)
kmap_prot = PAGE_KERNEL;
#endif /* CONFIG_HIGHMEM */
- printk(KERN_DEBUG "Top of RAM: 0x%llx, Total RAM: 0x%lx\n",
+ printk(KERN_DEBUG "Top of RAM: 0x%llx, Total RAM: 0x%llx\n",
(unsigned long long)top_of_ram, total_ram);
printk(KERN_DEBUG "Memory hole size: %ldMB\n",
(long int)((top_of_ram - total_ram) >> 20));
@@ -337,8 +337,9 @@ void __init mem_init(void)
highmem_mapnr = lowmem_end_addr >> PAGE_SHIFT;
for (pfn = highmem_mapnr; pfn < max_mapnr; ++pfn) {
+ phys_addr_t paddr = (phys_addr_t)pfn << PAGE_SHIFT;
struct page *page = pfn_to_page(pfn);
- if (memblock_is_reserved(pfn << PAGE_SHIFT))
+ if (memblock_is_reserved(paddr))
continue;
ClearPageReserved(page);
init_page_count(page);
@@ -352,6 +353,15 @@ void __init mem_init(void)
}
#endif /* CONFIG_HIGHMEM */
+#if defined(CONFIG_PPC_FSL_BOOK3E) && !defined(CONFIG_SMP)
+ /*
+ * If smp is enabled, next_tlbcam_idx is initialized in the cpu up
+ * functions.... do it here for the non-smp case.
+ */
+ per_cpu(next_tlbcam_idx, smp_processor_id()) =
+ (mfspr(SPRN_TLB1CFG) & TLBnCFG_N_ENTRY) - 1;
+#endif
+
printk(KERN_INFO "Memory: %luk/%luk available (%luk kernel code, "
"%luk reserved, %luk data, %luk bss, %luk init)\n",
nr_free_pages() << (PAGE_SHIFT-10),
@@ -382,6 +392,25 @@ void __init mem_init(void)
mem_init_done = 1;
}
+void free_initmem(void)
+{
+ unsigned long addr;
+
+ ppc_md.progress = ppc_printk_progress;
+
+ addr = (unsigned long)__init_begin;
+ for (; addr < (unsigned long)__init_end; addr += PAGE_SIZE) {
+ memset((void *)addr, POISON_FREE_INITMEM, PAGE_SIZE);
+ ClearPageReserved(virt_to_page(addr));
+ init_page_count(virt_to_page(addr));
+ free_page(addr);
+ totalram_pages++;
+ }
+ pr_info("Freeing unused kernel memory: %luk freed\n",
+ ((unsigned long)__init_end -
+ (unsigned long)__init_begin) >> 10);
+}
+
#ifdef CONFIG_BLK_DEV_INITRD
void __init free_initrd_mem(unsigned long start, unsigned long end)
{