Disable NAPI by default (#1671)

[openwrt.git] / target / linux / ar7-2.6 / files / arch / mips / ar7 / memory.c

diff --git a/target/linux/ar7-2.6/files/arch/mips/ar7/memory.c b/target/linux/ar7-2.6/files/arch/mips/ar7/memory.c
index ea5b5be..99faf21 100644 (file)
--- a/target/linux/ar7-2.6/files/arch/mips/ar7/memory.c
+++ b/target/linux/ar7-2.6/files/arch/mips/ar7/memory.c
@@ -25,7 +25,6 @@
  */
 #include <linux/bootmem.h>
 #include <linux/init.h>
  */
 #include <linux/bootmem.h>
 #include <linux/init.h>

-#include <linux/initrd.h>

 #include <linux/mm.h>
 #include <linux/module.h>
 #include <linux/pfn.h>
 #include <linux/mm.h>
 #include <linux/module.h>
 #include <linux/pfn.h>


@@ -39,172 +38,38 @@
 
 #include <asm/mips-boards/prom.h>
 
 
 #include <asm/mips-boards/prom.h>
 

-#warning FIXME: use sdram control regs and/or autodetection

 static int __init memsize(void)
 {
 static int __init memsize(void)
 {

-       char *memsize_str;
-       unsigned int result;
-       char cmdline[CL_SIZE], *ptr;
-
-       /* Check the command line first for a memsize directive */
-       strcpy(cmdline, arcs_cmdline);
-       ptr = strstr(cmdline, "memsize=");
-       if (ptr && (ptr != cmdline) && (*(ptr - 1) != ' '))
-               ptr = strstr(ptr, " memsize=");
-
-       if (ptr) {
-               result = memparse(ptr + 8, &ptr);
-       } else {
-               /* otherwise look in the environment */
-               memsize_str = prom_getenv("memsize");
-               if (!memsize_str) {
-                       prom_printf("memsize not set in boot prom, set to default (8Mb)\n");
-                       result = 0x00800000;
-               } else {
-                       result = simple_strtol(memsize_str, NULL, 0);
-               }
-       }
-
-       return result;
-}
-
-extern unsigned long __initramfs_start, __initramfs_end;
-
-#ifdef CONFIG_NEED_MULTIPLE_NODES
-static bootmem_data_t node_bootmem_data;
-pg_data_t __node_data[1] = {
-       { 
-               .bdata = &node_bootmem_data 
-       },
-};
-EXPORT_SYMBOL(__node_data);
-
-unsigned long max_mapnr;
-struct page *mem_map;
-EXPORT_SYMBOL(max_mapnr);
-EXPORT_SYMBOL(mem_map);
-
-static unsigned long setup_zero_pages(void)
-{
-       unsigned int order = 3;
-       unsigned long size;
-       struct page *page;
-
-       empty_zero_page = __get_free_pages(GFP_KERNEL | __GFP_ZERO, order);
-       if (!empty_zero_page)
-               panic("Oh boy, that early out of memory?");
-
-       page = virt_to_page(empty_zero_page);
-       split_page(page, order);
-       while (page < virt_to_page(empty_zero_page + (PAGE_SIZE << order))) {
-               SetPageReserved(page);
-               page++;
-       }
-
-       size = PAGE_SIZE << order;
-       zero_page_mask = (size - 1) & PAGE_MASK;
-
-       return 1UL << order;
-}
-
-extern void pagetable_init(void);
-
-void __init paging_init(void)
-{
-       unsigned long zones_size[MAX_NR_ZONES] = { 0, };
-
-       pagetable_init();
-
-       zones_size[ZONE_DMA] = max_low_pfn - min_low_pfn;
-
-       free_area_init_node(0, NODE_DATA(0), zones_size, ARCH_PFN_OFFSET, NULL);
-}
-
-static struct kcore_list kcore_mem, kcore_vmalloc;
-
-void __init mem_init(void)
-{
-       unsigned long codesize, reservedpages, datasize, initsize;
-       unsigned long tmp, ram;
-       unsigned long kernel_start, kernel_end;
-
-       kernel_start = PFN_DOWN(CPHYSADDR((unsigned long)&_text));
-       kernel_end = PFN_UP(CPHYSADDR((unsigned long)&_end));
-       for (tmp = min_low_pfn + 1; tmp < kernel_start; tmp++) {
-               ClearPageReserved(pfn_to_page(tmp));
-               init_page_count(pfn_to_page(tmp));
-               free_page((unsigned long)__va(tmp << PAGE_SHIFT));
-       }
-
-       totalram_pages += free_all_bootmem();
-       totalram_pages -= setup_zero_pages();   /* Setup zeroed pages.  */
-
-       reservedpages = ram = 0;
-       for (tmp = min_low_pfn; tmp <= max_low_pfn; tmp++) {
-               ram++;
-               if (PageReserved(pfn_to_page(tmp)))
-                       if ((tmp < kernel_start) || (tmp > kernel_end)) 
-                               reservedpages++;
+       u32 size = (64 << 20);
+       volatile u32 *addr = (u32 *)KSEG1ADDR(0x14000000 + size - 4);
+       u32 *kernel_end = (u32 *)KSEG1ADDR(CPHYSADDR((u32)&_end));
+
+       while (addr > kernel_end) {
+               *addr = (u32)addr;
+               size >>= 1;
+               addr -= size >> 2;

        }
        }

-       num_physpages = ram;

 
 

-       codesize =  (unsigned long) &_etext - (unsigned long) &_text;
-       datasize =  (unsigned long) &_edata - (unsigned long) &_etext;
-       initsize =  (unsigned long) &__init_end - (unsigned long) &__init_begin;
+       do {
+               addr += size >> 2;
+               if (*addr != (u32)addr)
+                       break;
+               size <<= 1;
+       } while (size < (64 << 20));

 
 

-       kclist_add(&kcore_mem, __va(min_low_pfn), 
-                  (max_low_pfn - min_low_pfn) << PAGE_SHIFT);
-       kclist_add(&kcore_vmalloc, (void *)VMALLOC_START,
-                  VMALLOC_END - VMALLOC_START);
-
-       printk(KERN_INFO "Memory: %luk/%luk available (%ldk kernel code, "
-              "%ldk reserved, %ldk data, %ldk init)\n",
-              (unsigned long) nr_free_pages() << (PAGE_SHIFT-10),
-              ram << (PAGE_SHIFT-10),
-              codesize >> 10,
-              reservedpages << (PAGE_SHIFT-10),
-              datasize >> 10,
-              initsize >> 10);
+       return size;

 }
 }

-#endif

 
 void __init prom_meminit(void)
 {
 
 void __init prom_meminit(void)
 {

-#ifdef CONFIG_NEED_MULTIPLE_NODES
-       unsigned long kernel_start, kernel_end;
-       unsigned long pages, free_pages;
-       unsigned long bootmap_size;
-#endif
-
-#ifdef CONFIG_BLK_DEV_INITRD
-       initrd_start = (unsigned long)&__initramfs_start;
-       initrd_end = (unsigned long)&__initramfs_end;
-#endif
+       unsigned long pages;

 
        pages = memsize() >> PAGE_SHIFT;
        add_memory_region(ARCH_PFN_OFFSET << PAGE_SHIFT, pages <<
                          PAGE_SHIFT, BOOT_MEM_RAM);
 
        pages = memsize() >> PAGE_SHIFT;
        add_memory_region(ARCH_PFN_OFFSET << PAGE_SHIFT, pages <<
                          PAGE_SHIFT, BOOT_MEM_RAM);

-
-#ifdef CONFIG_NEED_MULTIPLE_NODES
-       kernel_start = PFN_DOWN(CPHYSADDR((unsigned long)&_text));
-       kernel_end = PFN_UP(CPHYSADDR((unsigned long)&_end));
-       min_low_pfn = ARCH_PFN_OFFSET;
-       max_low_pfn = ARCH_PFN_OFFSET + pages;
-       max_mapnr = max_low_pfn;
-       free_pages = pages - (kernel_end - min_low_pfn);
-       bootmap_size = init_bootmem_node(NODE_DATA(0), kernel_end,
-                                        ARCH_PFN_OFFSET, max_low_pfn);
-
-       free_bootmem(PFN_PHYS(kernel_end), free_pages << PAGE_SHIFT);
-       memory_present(0, min_low_pfn, max_low_pfn);
-       reserve_bootmem(PFN_PHYS(kernel_end), bootmap_size);
-       mem_map = NODE_DATA(0)->node_mem_map;
-#endif

 }
 
 }
 

-unsigned long __init prom_free_prom_memory(void)
+void __init prom_free_prom_memory(void)

 {
 {

-/*     return freed;
-*/
-       return 0;
+       return;

 }
 }