1 files changed, 39 insertions, 14 deletions

diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 89440a0d8528..11ab222a2e97 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -271,8 +271,7 @@ static void __init bootmem_init(void)
 static void __init bootmem_init(void)
 {
         unsigned long reserved_end;
-        unsigned long highest = 0;
-        unsigned long mapstart = -1UL;
+        unsigned long mapstart = ~0UL;
         unsigned long bootmap_size;
         int i;
 
@@ -284,6 +283,13 @@ static void __init bootmem_init(void)
         reserved_end = max(init_initrd(), PFN_UP(__pa_symbol(&_end)));
 
         /*
+         * max_low_pfn is not a number of pages. The number of pages
+         * of the system is given by 'max_low_pfn - min_low_pfn'.
+         */
+        min_low_pfn = ~0UL;
+        max_low_pfn = 0;
+
+        /*
          * Find the highest page frame number we have available.
          */
         for (i = 0; i < boot_mem_map.nr_map; i++) {
@@ -296,8 +302,10 @@ static void __init bootmem_init(void)
                 end = PFN_DOWN(boot_mem_map.map[i].addr
                                 + boot_mem_map.map[i].size);
 
-                if (end > highest)
-                        highest = end;
+                if (end > max_low_pfn)
+                        max_low_pfn = end;
+                if (start < min_low_pfn)
+                        min_low_pfn = start;
                 if (end <= reserved_end)
                         continue;
                 if (start >= mapstart)
@@ -305,22 +313,36 @@ static void __init bootmem_init(void)
                 mapstart = max(reserved_end, start);
         }
 
+        if (min_low_pfn >= max_low_pfn)
+                panic("Incorrect memory mapping !!!");
+        if (min_low_pfn > ARCH_PFN_OFFSET) {
+                printk(KERN_INFO
+                       "Wasting %lu bytes for tracking %lu unused pages\n",
+                       (min_low_pfn - ARCH_PFN_OFFSET) * sizeof(struct page),
+                       min_low_pfn - ARCH_PFN_OFFSET);
+        } else if (min_low_pfn < ARCH_PFN_OFFSET) {
+                printk(KERN_INFO
+                       "%lu free pages won't be used\n",
+                       ARCH_PFN_OFFSET - min_low_pfn);
+        }
+        min_low_pfn = ARCH_PFN_OFFSET;
+
         /*
          * Determine low and high memory ranges
          */
-        if (highest > PFN_DOWN(HIGHMEM_START)) {
+        if (max_low_pfn > PFN_DOWN(HIGHMEM_START)) {
 #ifdef CONFIG_HIGHMEM
                 highstart_pfn = PFN_DOWN(HIGHMEM_START);
-                highend_pfn = highest;
+                highend_pfn = max_low_pfn;
 #endif
-                highest = PFN_DOWN(HIGHMEM_START);
+                max_low_pfn = PFN_DOWN(HIGHMEM_START);
         }
 
         /*
          * Initialize the boot-time allocator with low memory only.
          */
-        bootmap_size = init_bootmem(mapstart, highest);
-
+        bootmap_size = init_bootmem_node(NODE_DATA(0), mapstart,
+                                         min_low_pfn, max_low_pfn);
         /*
          * Register fully available low RAM pages with the bootmem allocator.
          */
@@ -430,7 +452,7 @@ static void __init arch_mem_init(char **cmdline_p)
         print_memory_map();
 
         strlcpy(command_line, arcs_cmdline, sizeof(command_line));
-        strlcpy(saved_command_line, command_line, COMMAND_LINE_SIZE);
+        strlcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
 
         *cmdline_p = command_line;
 
@@ -507,9 +529,9 @@ void __init setup_arch(char **cmdline_p)
 
 #if defined(CONFIG_VT)
 #if defined(CONFIG_VGA_CONSOLE)
-        conswitchp = &vga_con;
+        conswitchp = &vga_con;
 #elif defined(CONFIG_DUMMY_CONSOLE)
-        conswitchp = &dummy_con;
+        conswitchp = &dummy_con;
 #endif
 #endif
 
@@ -521,7 +543,7 @@ void __init setup_arch(char **cmdline_p)
 #endif
 }
 
-int __init fpu_disable(char *s)
+static int __init fpu_disable(char *s)
 {
         int i;
 
@@ -533,7 +555,7 @@ int __init fpu_disable(char *s)
 
 __setup("nofpu", fpu_disable);
 
-int __init dsp_disable(char *s)
+static int __init dsp_disable(char *s)
 {
         cpu_data[0].ases &= ~MIPS_ASE_DSP;
 
@@ -541,3 +563,6 @@ int __init dsp_disable(char *s)
 }
 
 __setup("nodsp", dsp_disable);
+
+unsigned long kernelsp[NR_CPUS];
+unsigned long fw_arg0, fw_arg1, fw_arg2, fw_arg3;