microblaze: Show more detailed information about memory

Microblaze MMU is similar to ppc that's why ppc layout
was reused.

Signed-off-by: Michal Simek <monstr@monstr.eu>

1 files changed, 39 insertions, 3 deletions

diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
index af87fd71a83e..cbcdf24b1c89 100644
--- a/arch/microblaze/mm/init.c
+++ b/arch/microblaze/mm/init.c
@@ -206,14 +206,50 @@ void free_initmem(void)
 
 void __init mem_init(void)
 {
+        pg_data_t *pgdat;
+        unsigned long reservedpages = 0, codesize, initsize, datasize, bsssize;
+
         high_memory = (void *)__va(memory_start + lowmem_size - 1);
 
         /* this will put all memory onto the freelists */
         totalram_pages += free_all_bootmem();
 
-        printk(KERN_INFO "Memory: %luk/%luk available\n",
-               nr_free_pages() << (PAGE_SHIFT-10),
-               num_physpages << (PAGE_SHIFT-10));
+        for_each_online_pgdat(pgdat) {
+                unsigned long i;
+                struct page *page;
+
+                for (i = 0; i < pgdat->node_spanned_pages; i++) {
+                        if (!pfn_valid(pgdat->node_start_pfn + i))
+                                continue;
+                        page = pgdat_page_nr(pgdat, i);
+                        if (PageReserved(page))
+                                reservedpages++;
+                }
+        }
+
+        codesize = (unsigned long)&_sdata - (unsigned long)&_stext;
+        datasize = (unsigned long)&_edata - (unsigned long)&_sdata;
+        initsize = (unsigned long)&__init_end - (unsigned long)&__init_begin;
+        bsssize = (unsigned long)&__bss_stop - (unsigned long)&__bss_start;
+
+        pr_info("Memory: %luk/%luk available (%luk kernel code, "
+                "%luk reserved, %luk data, %luk bss, %luk init)\n",
+                nr_free_pages() << (PAGE_SHIFT-10),
+                num_physpages << (PAGE_SHIFT-10),
+                codesize >> 10,
+                reservedpages << (PAGE_SHIFT-10),
+                datasize >> 10,
+                bsssize >> 10,
+                initsize >> 10);
+
+#ifdef CONFIG_MMU
+        pr_info("Kernel virtual memory layout:\n");
+        pr_info("  * 0x%08lx..0x%08lx  : fixmap\n", FIXADDR_START, FIXADDR_TOP);
+        pr_info("  * 0x%08lx..0x%08lx  : early ioremap\n",
+                ioremap_bot, ioremap_base);
+        pr_info("  * 0x%08lx..0x%08lx  : vmalloc & ioremap\n",
+                (unsigned long)VMALLOC_START, VMALLOC_END);
+#endif
         mem_init_done = 1;
 }