Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/agpgart

[linux-drm-fsl-dcu.git] / arch / mips / kernel / setup.c

diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 89440a0d8528f8ddf9b173f405f20b52723b8051..394540fad7699ef4e773f03ef30feb7301d7386b 100644 (file)
--- 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;
 
@@ -283,6 +282,13 @@ 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.
         */
@@ -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
 
@@ -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;