From efdd0e81df0f23830c6d2cb971cf87f415b8dbdb Mon Sep 17 00:00:00 2001
From: Yinghai Lu <yinghai@kernel.org>
Date: Wed, 10 Feb 2010 01:20:26 -0800
Subject: [PATCH] x86: Move back find_e820_area to e820.c
Makes early_res.c more clean, so later could move it to /kernel.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <1265793639-15071-23-git-send-email-yinghai@kernel.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
---
arch/x86/include/asm/e820.h | 2 ++
arch/x86/include/asm/early_res.h | 4 +--
arch/x86/kernel/e820.c | 53 +++++++++++++++++++++++++++++
arch/x86/kernel/early_res.c | 57 --------------------------------
4 files changed, 57 insertions(+), 59 deletions(-)
diff --git a/arch/x86/include/asm/e820.h b/arch/x86/include/asm/e820.h
index efad699a2c22..a8299e134437 100644
--- a/arch/x86/include/asm/e820.h
+++ b/arch/x86/include/asm/e820.h
@@ -109,6 +109,8 @@ static inline void early_memtest(unsigned long start, unsigned long end)
extern unsigned long end_user_pfn;
+extern u64 find_e820_area(u64 start, u64 end, u64 size, u64 align);
+extern u64 find_e820_area_size(u64 start, u64 *sizep, u64 align);
extern u64 early_reserve_e820(u64 startt, u64 sizet, u64 align);
#include <asm/early_res.h>
diff --git a/arch/x86/include/asm/early_res.h b/arch/x86/include/asm/early_res.h
index 2d43b166782d..5a4d2eb8e79c 100644
--- a/arch/x86/include/asm/early_res.h
+++ b/arch/x86/include/asm/early_res.h
@@ -2,8 +2,6 @@
#define _ASM_X86_EARLY_RES_H
#ifdef __KERNEL__
-extern u64 find_e820_area(u64 start, u64 end, u64 size, u64 align);
-extern u64 find_e820_area_size(u64 start, u64 *sizep, u64 align);
extern void reserve_early(u64 start, u64 end, char *name);
extern void reserve_early_overlap_ok(u64 start, u64 end, char *name);
extern void free_early(u64 start, u64 end);
@@ -12,6 +10,8 @@ extern void early_res_to_bootmem(u64 start, u64 end);
void reserve_early_without_check(u64 start, u64 end, char *name);
u64 find_early_area(u64 ei_start, u64 ei_last, u64 start, u64 end,
u64 size, u64 align);
+u64 find_early_area_size(u64 ei_start, u64 ei_last, u64 start,
+ u64 *sizep, u64 align);
#include <linux/range.h>
int get_free_all_memory_range(struct range **rangep, int nodeid);
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 82db4015604e..b4e512b03aa7 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -722,6 +722,59 @@ static int __init e820_mark_nvs_memory(void)
core_initcall(e820_mark_nvs_memory);
#endif
+/*
+ * Find a free area with specified alignment in a specific range.
+ */
+u64 __init find_e820_area(u64 start, u64 end, u64 size, u64 align)
+{
+ int i;
+
+ for (i = 0; i < e820.nr_map; i++) {
+ struct e820entry *ei = &e820.map[i];
+ u64 addr;
+ u64 ei_start, ei_last;
+
+ if (ei->type != E820_RAM)
+ continue;
+
+ ei_last = ei->addr + ei->size;
+ ei_start = ei->addr;
+ addr = find_early_area(ei_start, ei_last, start, end,
+ size, align);
+
+ if (addr != -1ULL)
+ return addr;
+ }
+ return -1ULL;
+}
+
+/*
+ * Find next free range after *start
+ */
+u64 __init find_e820_area_size(u64 start, u64 *sizep, u64 align)
+{
+ int i;
+
+ for (i = 0; i < e820.nr_map; i++) {
+ struct e820entry *ei = &e820.map[i];
+ u64 addr;
+ u64 ei_start, ei_last;
+
+ if (ei->type != E820_RAM)
+ continue;
+
+ ei_last = ei->addr + ei->size;
+ ei_start = ei->addr;
+ addr = find_early_area_size(ei_start, ei_last, start,
+ sizep, align);
+
+ if (addr != -1ULL)
+ return addr;
+ }
+
+ return -1ULL;
+}
+
/*
* pre allocated 4k and reserved it in e820
*/
diff --git a/arch/x86/kernel/early_res.c b/arch/x86/kernel/early_res.c
index bfa1ba705d48..1b99a2619f9f 100644
--- a/arch/x86/kernel/early_res.c
+++ b/arch/x86/kernel/early_res.c
@@ -498,60 +498,3 @@ u64 __init find_early_area_size(u64 ei_start, u64 ei_last, u64 start,
out:
return -1ULL;
}
-
-/*
- * Find a free area with specified alignment in a specific range.
- */
-u64 __init find_e820_area(u64 start, u64 end, u64 size, u64 align)
-{
- int i;
-
- for (i = 0; i < e820.nr_map; i++) {
- struct e820entry *ei = &e820.map[i];
- u64 addr;
- u64 ei_start, ei_last;
-
- if (ei->type != E820_RAM)
- continue;
-
- ei_last = ei->addr + ei->size;
- ei_start = ei->addr;
- addr = find_early_area(ei_start, ei_last, start, end,
- size, align);
-
- if (addr == -1ULL)
- continue;
-
- return addr;
- }
- return -1ULL;
-}
-
-/*
- * Find next free range after *start
- */
-u64 __init find_e820_area_size(u64 start, u64 *sizep, u64 align)
-{
- int i;
-
- for (i = 0; i < e820.nr_map; i++) {
- struct e820entry *ei = &e820.map[i];
- u64 addr;
- u64 ei_start, ei_last;
-
- if (ei->type != E820_RAM)
- continue;
-
- ei_last = ei->addr + ei->size;
- ei_start = ei->addr;
- addr = find_early_area_size(ei_start, ei_last, start,
- sizep, align);
-
- if (addr == -1ULL)
- continue;
-
- return addr;
- }
-
- return -1ULL;
-}
--
2.34.1