Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

[firefly-linux-kernel-4.4.55.git] / arch / i386 / kernel / setup.c

diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c
index 7306353c520ec6dc4c74a6cac328f8b5ba446d64..294bcca985ab7ec2de873dff4716f0681500c0be 100644 (file)
--- a/arch/i386/kernel/setup.c
+++ b/arch/i386/kernel/setup.c
@@ -370,12 +370,16 @@ static void __init limit_regions(unsigned long long size)
        int i;
 
        if (efi_enabled) {
-               for (i = 0; i < memmap.nr_map; i++) {
-                       current_addr = memmap.map[i].phys_addr +
-                                      (memmap.map[i].num_pages << 12);
-                       if (memmap.map[i].type == EFI_CONVENTIONAL_MEMORY) {
+               efi_memory_desc_t *md;
+               void *p;
+
+               for (p = memmap.map, i = 0; p < memmap.map_end;
+                       p += memmap.desc_size, i++) {
+                       md = p;
+                       current_addr = md->phys_addr + (md->num_pages << 12);
+                       if (md->type == EFI_CONVENTIONAL_MEMORY) {
                                if (current_addr >= size) {
-                                       memmap.map[i].num_pages -=
+                                       md->num_pages -=
                                                (((current_addr-size) + PAGE_SIZE-1) >> PAGE_SHIFT);
                                        memmap.nr_map = i + 1;
                                        return;
@@ -1414,7 +1418,7 @@ static struct nop {
    This runs before SMP is initialized to avoid SMP problems with
    self modifying code. This implies that assymetric systems where
    APs have less capabilities than the boot processor are not handled. 
-   In this case boot with "noreplacement". */ 
+   Tough. Make sure you disable such features by hand. */ 
 void apply_alternatives(void *start, void *end) 
 { 
        struct alt_instr *a; 
@@ -1442,24 +1446,12 @@ void apply_alternatives(void *start, void *end)
        }
 } 
 
-static int no_replacement __initdata = 0; 
- 
 void __init alternative_instructions(void)
 {
        extern struct alt_instr __alt_instructions[], __alt_instructions_end[];
-       if (no_replacement) 
-               return;
        apply_alternatives(__alt_instructions, __alt_instructions_end);
 }
 
-static int __init noreplacement_setup(char *s)
-{ 
-     no_replacement = 1; 
-     return 0; 
-} 
-
-__setup("noreplacement", noreplacement_setup); 
-
 static char * __init machine_specific_memory_setup(void);
 
 #ifdef CONFIG_MCA
@@ -1593,8 +1585,14 @@ void __init setup_arch(char **cmdline_p)
         */
        acpi_boot_table_init();
        acpi_boot_init();
-#endif
 
+#if defined(CONFIG_SMP) && defined(CONFIG_X86_PC)
+       if (def_to_bigsmp)
+               printk(KERN_WARNING "More than 8 CPUs detected and "
+                       "CONFIG_X86_PC cannot handle it.\nUse "
+                       "CONFIG_X86_GENERICARCH or CONFIG_X86_BIGSMP.\n");
+#endif
+#endif
 #ifdef CONFIG_X86_LOCAL_APIC
        if (smp_found_config)
                get_smp_config();