x86: rename two e820 related functions

rename update_memory_range to e820_update_range
rename add_memory_region to e820_add_region

to make it more clear that they are about e820 map operations.
Signed-off-by: NYinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

arch/x86/kernel/aperture_64.c

@@ -292,7 +292,7 @@ void __init early_gart_iommu_check(void)
 				    E820_RAM)) {
 			/* reserved it, so we can resuse it in second kernel */
 			printk(KERN_INFO "update e820 for GART\n");
-			add_memory_region(aper_base, aper_size, E820_RESERVED);
+			e820_add_region(aper_base, aper_size, E820_RESERVED);
 			update_e820();
 		}
 		return;

arch/x86/kernel/cpu/mtrr/main.c

@@ -1440,7 +1440,7 @@ static u64 __init real_trim_memory(unsigned long start_pfn,
 	trim_size <<= PAGE_SHIFT;
 	trim_size -= trim_start;
 
-	return update_memory_range(trim_start, trim_size, E820_RAM,
+	return e820_update_range(trim_start, trim_size, E820_RAM,
 				E820_RESERVED);
 }
 /**

arch/x86/kernel/e820.c

@@ -94,7 +94,7 @@ int __init e820_all_mapped(u64 start, u64 end, unsigned type)
 /*
  * Add a memory region to the kernel e820 map.
  */
-void __init add_memory_region(u64 start, u64 size, int type)
+void __init e820_add_region(u64 start, u64 size, int type)
 {
 	int x = e820.nr_map;
 
@@ -384,12 +384,12 @@ int __init copy_e820_map(struct e820entry *biosmap, int nr_map)
 		if (start > end)
 			return -1;
 
-		add_memory_region(start, size, type);
+		e820_add_region(start, size, type);
 	} while (biosmap++, --nr_map);
 	return 0;
 }
 
-u64 __init update_memory_range(u64 start, u64 size, unsigned old_type,
+u64 __init e820_update_range(u64 start, u64 size, unsigned old_type,
 				unsigned new_type)
 {
 	int i;
@@ -414,7 +414,7 @@ u64 __init update_memory_range(u64 start, u64 size, unsigned old_type,
 		final_end = min(start + size, ei->addr + ei->size);
 		if (final_start >= final_end)
 			continue;
-		add_memory_region(final_start, final_end - final_start,
+		e820_add_region(final_start, final_end - final_start,
 					 new_type);
 		real_updated_size += final_end - final_start;
 	}
@@ -774,7 +774,7 @@ u64 __init early_reserve_e820(u64 startt, u64 sizet, u64 align)
 		return 0;
 
 	addr = round_down(start + size - sizet, align);
-	update_memory_range(addr, sizet, E820_RAM, E820_RESERVED);
+	e820_update_range(addr, sizet, E820_RAM, E820_RESERVED);
 	printk(KERN_INFO "update e820 for early_reserve_e820\n");
 	update_e820();
 
@@ -949,13 +949,13 @@ static int __init parse_memmap_opt(char *p)
 	userdef = 1;
 	if (*p == '@') {
 		start_at = memparse(p+1, &p);
-		add_memory_region(start_at, mem_size, E820_RAM);
+		e820_add_region(start_at, mem_size, E820_RAM);
 	} else if (*p == '#') {
 		start_at = memparse(p+1, &p);
-		add_memory_region(start_at, mem_size, E820_ACPI);
+		e820_add_region(start_at, mem_size, E820_ACPI);
 	} else if (*p == '$') {
 		start_at = memparse(p+1, &p);
-		add_memory_region(start_at, mem_size, E820_RESERVED);
+		e820_add_region(start_at, mem_size, E820_RESERVED);
 	} else {
 		end_user_pfn = (mem_size >> PAGE_SHIFT);
 	}

arch/x86/kernel/efi.c

@@ -233,7 +233,7 @@ static void __init add_efi_memmap(void)
 			e820_type = E820_RAM;
 		else
 			e820_type = E820_RESERVED;
-		add_memory_region(start, size, e820_type);
+		e820_add_region(start, size, e820_type);
 	}
 	sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
 }

arch/x86/lguest/boot.c

@@ -835,7 +835,7 @@ static __init char *lguest_memory_setup(void)
 
 	/* The Linux bootloader header contains an "e820" memory map: the
 	 * Launcher populated the first entry with our memory limit. */
-	add_memory_region(boot_params.e820_map[0].addr,
+	e820_add_region(boot_params.e820_map[0].addr,
 			  boot_params.e820_map[0].size,
 			  boot_params.e820_map[0].type);
 

arch/x86/mach-default/setup.c

@@ -184,8 +184,8 @@ char * __init machine_specific_memory_setup(void)
 		}
 
 		e820.nr_map = 0;
-		add_memory_region(0, LOWMEMSIZE(), E820_RAM);
-		add_memory_region(HIGH_MEMORY, mem_size << 10, E820_RAM);
+		e820_add_region(0, LOWMEMSIZE(), E820_RAM);
+		e820_add_region(HIGH_MEMORY, mem_size << 10, E820_RAM);
   	}
 	return who;
 }

arch/x86/mach-visws/setup.c

@@ -175,9 +175,9 @@ char * __init machine_specific_memory_setup(void)
 	sgivwfb_mem_size &= ~((1 << 20) - 1);
 	sgivwfb_mem_phys = mem_size - gfx_mem_size;
 
-	add_memory_region(0, LOWMEMSIZE(), E820_RAM);
-	add_memory_region(HIGH_MEMORY, mem_size - sgivwfb_mem_size - HIGH_MEMORY, E820_RAM);
-	add_memory_region(sgivwfb_mem_phys, sgivwfb_mem_size, E820_RESERVED);
+	e820_add_region(0, LOWMEMSIZE(), E820_RAM);
+	e820_add_region(HIGH_MEMORY, mem_size - sgivwfb_mem_size - HIGH_MEMORY, E820_RAM);
+	e820_add_region(sgivwfb_mem_phys, sgivwfb_mem_size, E820_RESERVED);
 
 	return "PROM";
 }

arch/x86/mach-voyager/setup.c

@@ -74,7 +74,7 @@ char *__init machine_specific_memory_setup(void)
 
 		e820.nr_map = 0;
 		for (i = 0; voyager_memory_detect(i, &addr, &length); i++) {
-			add_memory_region(addr, length, E820_RAM);
+			e820_add_region(addr, length, E820_RAM);
 		}
 		return who;
 	} else if (voyager_level == 4) {
@@ -92,14 +92,14 @@ char *__init machine_specific_memory_setup(void)
 			tom = (boot_params.screen_info.ext_mem_k) << 10;
 		}
 		who = "Voyager-TOM";
-		add_memory_region(0, 0x9f000, E820_RAM);
+		e820_add_region(0, 0x9f000, E820_RAM);
 		/* map from 1M to top of memory */
-		add_memory_region(1 * 1024 * 1024, tom - 1 * 1024 * 1024,
+		e820_add_region(1 * 1024 * 1024, tom - 1 * 1024 * 1024,
 				  E820_RAM);
 		/* FIXME: Should check the ASICs to see if I need to
 		 * take out the 8M window.  Just do it at the moment
 		 * */
-		add_memory_region(8 * 1024 * 1024, 8 * 1024 * 1024,
+		e820_add_region(8 * 1024 * 1024, 8 * 1024 * 1024,
 				  E820_RESERVED);
 		return who;
 	}
@@ -131,8 +131,8 @@ char *__init machine_specific_memory_setup(void)
 		}
 
 		e820.nr_map = 0;
-		add_memory_region(0, LOWMEMSIZE(), E820_RAM);
-		add_memory_region(HIGH_MEMORY, mem_size << 10, E820_RAM);
+		e820_add_region(0, LOWMEMSIZE(), E820_RAM);
+		e820_add_region(HIGH_MEMORY, mem_size << 10, E820_RAM);
 	}
 	return who;
 }

arch/x86/xen/setup.c

@@ -39,8 +39,8 @@ char * __init xen_memory_setup(void)
 	unsigned long max_pfn = xen_start_info->nr_pages;
 
 	e820.nr_map = 0;
-	add_memory_region(0, LOWMEMSIZE(), E820_RAM);
-	add_memory_region(HIGH_MEMORY, PFN_PHYS(max_pfn)-HIGH_MEMORY, E820_RAM);
+	e820_add_region(0, LOWMEMSIZE(), E820_RAM);
+	e820_add_region(HIGH_MEMORY, PFN_PHYS(max_pfn)-HIGH_MEMORY, E820_RAM);
 
 	return "Xen";
 }

include/asm-x86/e820.h

@@ -60,12 +60,12 @@ extern struct e820map e820;
 
 extern int e820_any_mapped(u64 start, u64 end, unsigned type);
 extern int e820_all_mapped(u64 start, u64 end, unsigned type);
-extern void add_memory_region(u64 start, u64 size, int type);
+extern void e820_add_region(u64 start, u64 size, int type);
 extern void e820_print_map(char *who);
 extern int
 sanitize_e820_map(struct e820entry *biosmap, int max_nr_map, int *pnr_map);
 extern int copy_e820_map(struct e820entry *biosmap, int nr_map);
-extern u64 update_memory_range(u64 start, u64 size, unsigned old_type,
+extern u64 e820_update_range(u64 start, u64 size, unsigned old_type,
 			       unsigned new_type);
 extern void update_e820(void);
 extern void e820_setup_gap(void);