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>

diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
index af87fd7..cbcdf24 100644 (file)
--- 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;
 }