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Subject[PATCH 6/8] x86: remove find_e820_area
Date
From: Yinghai Lu <yinghai@@kernel.org>

and e820_register_active_region, e820_hole_size

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
---
arch/x86/include/asm/e820.h | 17 -----------------
arch/x86/kernel/acpi/sleep.c | 2 +-
arch/x86/kernel/apic/numaq_32.c | 2 +-
arch/x86/kernel/setup.c | 6 +++---
arch/x86/kernel/trampoline.c | 4 ++--
arch/x86/mm/init.c | 2 +-
arch/x86/mm/init_32.c | 6 +++---
arch/x86/mm/init_64.c | 6 +++---
arch/x86/mm/k8topology_64.c | 2 +-
arch/x86/mm/numa_32.c | 8 ++++----
arch/x86/mm/numa_64.c | 24 ++++++++++++------------
arch/x86/mm/srat_32.c | 2 +-
arch/x86/mm/srat_64.c | 6 +++---
13 files changed, 35 insertions(+), 52 deletions(-)

diff --git a/arch/x86/include/asm/e820.h b/arch/x86/include/asm/e820.h
index e957101..9234c78 100644
--- a/arch/x86/include/asm/e820.h
+++ b/arch/x86/include/asm/e820.h
@@ -116,23 +116,6 @@ extern unsigned long e820_end_of_low_ram_pfn(void);
#include <linux/early_res.h>
extern u64 early_reserve_e820(u64 startt, u64 sizet, u64 align);

-/*
- * next three functions will be removed, esp find_e820_area()
- * can not be used before fill_lmb_memory()
- */
-static inline u64 find_e820_area(u64 start, u64 end, u64 size, u64 align)
-{
- return find_lmb_area(start, end, size, align);
-}
-static inline void e820_register_active_regions(int nid, unsigned long start_pfn, unsigned long end_pfn)
-{
- lmb_register_active_regions(nid, start_pfn, end_pfn);
-}
-static inline u64 e820_hole_size(u64 start, u64 end)
-{
- return lmb_hole_size(start, end);
-}
-
void init_lmb_memory(void);
void fill_lmb_memory(void);
extern void finish_e820_parsing(void);
diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c
index f996103..700a3b7 100644
--- a/arch/x86/kernel/acpi/sleep.c
+++ b/arch/x86/kernel/acpi/sleep.c
@@ -133,7 +133,7 @@ void __init acpi_reserve_wakeup_memory(void)
return;
}

- mem = find_e820_area(0, 1<<20, WAKEUP_SIZE, PAGE_SIZE);
+ mem = find_lmb_area(0, 1<<20, WAKEUP_SIZE, PAGE_SIZE);

if (mem == -1L) {
printk(KERN_ERR "ACPI: Cannot allocate lowmem, S3 disabled.\n");
diff --git a/arch/x86/kernel/apic/numaq_32.c b/arch/x86/kernel/apic/numaq_32.c
index 3e28401..d021cd4 100644
--- a/arch/x86/kernel/apic/numaq_32.c
+++ b/arch/x86/kernel/apic/numaq_32.c
@@ -88,7 +88,7 @@ static inline void numaq_register_node(int node, struct sys_cfg_data *scd)
node_end_pfn[node] =
MB_TO_PAGES(eq->hi_shrd_mem_start + eq->hi_shrd_mem_size);

- e820_register_active_regions(node, node_start_pfn[node],
+ lmb_register_active_regions(node, node_start_pfn[node],
node_end_pfn[node]);

memory_present(node, node_start_pfn[node], node_end_pfn[node]);
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index a9e99e6..b716ea3 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -323,7 +323,7 @@ static void __init relocate_initrd(void)
char *p, *q;

/* We need to move the initrd down into lowmem */
- ramdisk_here = find_e820_area(0, end_of_lowmem, ramdisk_size,
+ ramdisk_here = find_lmb_area(0, end_of_lowmem, ramdisk_size,
PAGE_SIZE);

if (ramdisk_here == -1ULL)
@@ -517,7 +517,7 @@ static void __init reserve_crashkernel(void)
if (crash_base <= 0) {
const unsigned long long alignment = 16<<20; /* 16M */

- crash_base = find_e820_area(alignment, ULONG_MAX, crash_size,
+ crash_base = find_lmb_area(alignment, ULONG_MAX, crash_size,
alignment);
if (crash_base == -1ULL) {
pr_info("crashkernel reservation failed - No suitable area found.\n");
@@ -526,7 +526,7 @@ static void __init reserve_crashkernel(void)
} else {
unsigned long long start;

- start = find_e820_area(crash_base, ULONG_MAX, crash_size,
+ start = find_lmb_area(crash_base, ULONG_MAX, crash_size,
1<<20);
if (start != crash_base) {
pr_info("crashkernel reservation failed - memory is in use.\n");
diff --git a/arch/x86/kernel/trampoline.c b/arch/x86/kernel/trampoline.c
index c652ef6..2276e8b 100644
--- a/arch/x86/kernel/trampoline.c
+++ b/arch/x86/kernel/trampoline.c
@@ -1,7 +1,7 @@
#include <linux/io.h>
+#include <linux/early_res.h>

#include <asm/trampoline.h>
-#include <asm/e820.h>

#if defined(CONFIG_X86_64) && defined(CONFIG_ACPI_SLEEP)
#define __trampinit
@@ -19,7 +19,7 @@ void __init reserve_trampoline_memory(void)
unsigned long mem;

/* Has to be in very low memory so we can execute real-mode AP code. */
- mem = find_e820_area(0, 1<<20, TRAMPOLINE_SIZE, PAGE_SIZE);
+ mem = find_lmb_area(0, 1<<20, TRAMPOLINE_SIZE, PAGE_SIZE);
if (mem == -1L)
panic("Cannot allocate trampoline\n");

diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index e71c5cb..7d40e37 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -74,7 +74,7 @@ static void __init find_early_table_space(unsigned long end, int use_pse,
#else
start = 0x8000;
#endif
- e820_table_start = find_e820_area(start, max_pfn_mapped<<PAGE_SHIFT,
+ e820_table_start = find_lmb_area(start, max_pfn_mapped<<PAGE_SHIFT,
tables, PAGE_SIZE);
if (e820_table_start == -1UL)
panic("Cannot find space for the kernel page tables");
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 5cb3f0f..a7625d5 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -712,14 +712,14 @@ void __init initmem_init(unsigned long start_pfn, unsigned long end_pfn,
highstart_pfn = highend_pfn = max_pfn;
if (max_pfn > max_low_pfn)
highstart_pfn = max_low_pfn;
- e820_register_active_regions(0, 0, highend_pfn);
+ lmb_register_active_regions(0, 0, highend_pfn);
sparse_memory_present_with_active_regions(0);
printk(KERN_NOTICE "%ldMB HIGHMEM available.\n",
pages_to_mb(highend_pfn - highstart_pfn));
num_physpages = highend_pfn;
high_memory = (void *) __va(highstart_pfn * PAGE_SIZE - 1) + 1;
#else
- e820_register_active_regions(0, 0, max_low_pfn);
+ lmb_register_active_regions(0, 0, max_low_pfn);
sparse_memory_present_with_active_regions(0);
num_physpages = max_low_pfn;
high_memory = (void *) __va(max_low_pfn * PAGE_SIZE - 1) + 1;
@@ -781,7 +781,7 @@ void __init setup_bootmem_allocator(void)
* Initialize the boot-time allocator (with low memory only):
*/
bootmap_size = bootmem_bootmap_pages(max_low_pfn)<<PAGE_SHIFT;
- bootmap = find_e820_area(0, max_pfn_mapped<<PAGE_SHIFT, bootmap_size,
+ bootmap = find_lmb_area(0, max_pfn_mapped<<PAGE_SHIFT, bootmap_size,
PAGE_SIZE);
if (bootmap == -1L)
panic("Cannot find bootmem map of size %ld\n", bootmap_size);
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index e9b040e..dd88ef9 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -576,7 +576,7 @@ void __init initmem_init(unsigned long start_pfn, unsigned long end_pfn,
unsigned long bootmap_size, bootmap;

bootmap_size = bootmem_bootmap_pages(end_pfn)<<PAGE_SHIFT;
- bootmap = find_e820_area(0, end_pfn<<PAGE_SHIFT, bootmap_size,
+ bootmap = find_lmb_area(0, end_pfn<<PAGE_SHIFT, bootmap_size,
PAGE_SIZE);
if (bootmap == -1L)
panic("Cannot find bootmem map of size %ld\n", bootmap_size);
@@ -584,10 +584,10 @@ void __init initmem_init(unsigned long start_pfn, unsigned long end_pfn,
/* don't touch min_low_pfn */
bootmap_size = init_bootmem_node(NODE_DATA(0), bootmap >> PAGE_SHIFT,
0, end_pfn);
- e820_register_active_regions(0, start_pfn, end_pfn);
+ lmb_register_active_regions(0, start_pfn, end_pfn);
free_bootmem_with_active_regions(0, end_pfn);
#else
- e820_register_active_regions(0, start_pfn, end_pfn);
+ lmb_register_active_regions(0, start_pfn, end_pfn);
#endif
}
#endif
diff --git a/arch/x86/mm/k8topology_64.c b/arch/x86/mm/k8topology_64.c
index 970ed57..1c5b234 100644
--- a/arch/x86/mm/k8topology_64.c
+++ b/arch/x86/mm/k8topology_64.c
@@ -222,7 +222,7 @@ int __init k8_scan_nodes(void)
for_each_node_mask(i, node_possible_map) {
int j;

- e820_register_active_regions(i,
+ lmb_register_active_regions(i,
nodes[i].start >> PAGE_SHIFT,
nodes[i].end >> PAGE_SHIFT);
for (j = apicid_base; j < cores + apicid_base; j++)
diff --git a/arch/x86/mm/numa_32.c b/arch/x86/mm/numa_32.c
index 809baaa..8780f4d 100644
--- a/arch/x86/mm/numa_32.c
+++ b/arch/x86/mm/numa_32.c
@@ -120,7 +120,7 @@ int __init get_memcfg_numa_flat(void)

node_start_pfn[0] = 0;
node_end_pfn[0] = max_pfn;
- e820_register_active_regions(0, 0, max_pfn);
+ lmb_register_active_regions(0, 0, max_pfn);
memory_present(0, 0, max_pfn);
node_remap_size[0] = node_memmap_size_bytes(0, 0, max_pfn);

@@ -161,7 +161,7 @@ static void __init allocate_pgdat(int nid)
NODE_DATA(nid) = (pg_data_t *)node_remap_start_vaddr[nid];
else {
unsigned long pgdat_phys;
- pgdat_phys = find_e820_area(min_low_pfn<<PAGE_SHIFT,
+ pgdat_phys = find_lmb_area(min_low_pfn<<PAGE_SHIFT,
max_pfn_mapped<<PAGE_SHIFT,
sizeof(pg_data_t),
PAGE_SIZE);
@@ -291,7 +291,7 @@ static __init unsigned long calculate_numa_remap_pages(void)
PTRS_PER_PTE);
node_kva_target <<= PAGE_SHIFT;
do {
- node_kva_final = find_e820_area(node_kva_target,
+ node_kva_final = find_lmb_area(node_kva_target,
((u64)node_end_pfn[nid])<<PAGE_SHIFT,
((u64)size)<<PAGE_SHIFT,
LARGE_PAGE_BYTES);
@@ -367,7 +367,7 @@ void __init initmem_init(unsigned long start_pfn, unsigned long end_pfn,

kva_target_pfn = round_down(max_low_pfn - kva_pages, PTRS_PER_PTE);
do {
- kva_start_pfn = find_e820_area(kva_target_pfn<<PAGE_SHIFT,
+ kva_start_pfn = find_lmb_area(kva_target_pfn<<PAGE_SHIFT,
max_low_pfn<<PAGE_SHIFT,
kva_pages<<PAGE_SHIFT,
PTRS_PER_PTE<<PAGE_SHIFT) >> PAGE_SHIFT;
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index 45ac950..12c1268 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -89,7 +89,7 @@ static int __init allocate_cachealigned_memnodemap(void)

addr = 0x8000;
nodemap_size = roundup(sizeof(s16) * memnodemapsize, L1_CACHE_BYTES);
- nodemap_addr = find_e820_area(addr, max_pfn<<PAGE_SHIFT,
+ nodemap_addr = find_lmb_area(addr, max_pfn<<PAGE_SHIFT,
nodemap_size, L1_CACHE_BYTES);
if (nodemap_addr == -1UL) {
printk(KERN_ERR
@@ -248,7 +248,7 @@ setup_node_bootmem(int nodeid, unsigned long start, unsigned long end)
* Find a place for the bootmem map
* nodedata_phys could be on other nodes by alloc_bootmem,
* so need to sure bootmap_start not to be small, otherwise
- * early_node_mem will get that with find_e820_area instead
+ * early_node_mem will get that with find_lmb_area instead
* of alloc_bootmem, that could clash with reserved range
*/
bootmap_pages = bootmem_bootmap_pages(last_pfn - start_pfn);
@@ -419,7 +419,7 @@ static int __init split_nodes_interleave(u64 addr, u64 max_addr,
nr_nodes = MAX_NUMNODES;
}

- size = (max_addr - addr - e820_hole_size(addr, max_addr)) / nr_nodes;
+ size = (max_addr - addr - lmb_hole_size(addr, max_addr)) / nr_nodes;
/*
* Calculate the number of big nodes that can be allocated as a result
* of consolidating the remainder.
@@ -455,7 +455,7 @@ static int __init split_nodes_interleave(u64 addr, u64 max_addr,
* non-reserved memory is less than the per-node size.
*/
while (end - physnodes[i].start -
- e820_hole_size(physnodes[i].start, end) < size) {
+ lmb_hole_size(physnodes[i].start, end) < size) {
end += FAKE_NODE_MIN_SIZE;
if (end > physnodes[i].end) {
end = physnodes[i].end;
@@ -469,7 +469,7 @@ static int __init split_nodes_interleave(u64 addr, u64 max_addr,
* this one must extend to the boundary.
*/
if (end < dma32_end && dma32_end - end -
- e820_hole_size(end, dma32_end) < FAKE_NODE_MIN_SIZE)
+ lmb_hole_size(end, dma32_end) < FAKE_NODE_MIN_SIZE)
end = dma32_end;

/*
@@ -478,7 +478,7 @@ static int __init split_nodes_interleave(u64 addr, u64 max_addr,
* physical node.
*/
if (physnodes[i].end - end -
- e820_hole_size(end, physnodes[i].end) < size)
+ lmb_hole_size(end, physnodes[i].end) < size)
end = physnodes[i].end;

/*
@@ -506,7 +506,7 @@ static u64 __init find_end_of_node(u64 start, u64 max_addr, u64 size)
{
u64 end = start + size;

- while (end - start - e820_hole_size(start, end) < size) {
+ while (end - start - lmb_hole_size(start, end) < size) {
end += FAKE_NODE_MIN_SIZE;
if (end > max_addr) {
end = max_addr;
@@ -535,7 +535,7 @@ static int __init split_nodes_size_interleave(u64 addr, u64 max_addr, u64 size)
* creates a uniform distribution of node sizes across the entire
* machine (but not necessarily over physical nodes).
*/
- min_size = (max_addr - addr - e820_hole_size(addr, max_addr)) /
+ min_size = (max_addr - addr - lmb_hole_size(addr, max_addr)) /
MAX_NUMNODES;
min_size = max(min_size, FAKE_NODE_MIN_SIZE);
if ((min_size & FAKE_NODE_MIN_HASH_MASK) < min_size)
@@ -568,7 +568,7 @@ static int __init split_nodes_size_interleave(u64 addr, u64 max_addr, u64 size)
* this one must extend to the boundary.
*/
if (end < dma32_end && dma32_end - end -
- e820_hole_size(end, dma32_end) < FAKE_NODE_MIN_SIZE)
+ lmb_hole_size(end, dma32_end) < FAKE_NODE_MIN_SIZE)
end = dma32_end;

/*
@@ -577,7 +577,7 @@ static int __init split_nodes_size_interleave(u64 addr, u64 max_addr, u64 size)
* physical node.
*/
if (physnodes[i].end - end -
- e820_hole_size(end, physnodes[i].end) < size)
+ lmb_hole_size(end, physnodes[i].end) < size)
end = physnodes[i].end;

/*
@@ -641,7 +641,7 @@ static int __init numa_emulation(unsigned long start_pfn,
*/
remove_all_active_ranges();
for_each_node_mask(i, node_possible_map) {
- e820_register_active_regions(i, nodes[i].start >> PAGE_SHIFT,
+ lmb_register_active_regions(i, nodes[i].start >> PAGE_SHIFT,
nodes[i].end >> PAGE_SHIFT);
setup_node_bootmem(i, nodes[i].start, nodes[i].end);
}
@@ -694,7 +694,7 @@ void __init initmem_init(unsigned long start_pfn, unsigned long last_pfn,
node_set(0, node_possible_map);
for (i = 0; i < nr_cpu_ids; i++)
numa_set_node(i, 0);
- e820_register_active_regions(0, start_pfn, last_pfn);
+ lmb_register_active_regions(0, start_pfn, last_pfn);
setup_node_bootmem(0, start_pfn << PAGE_SHIFT, last_pfn << PAGE_SHIFT);
}

diff --git a/arch/x86/mm/srat_32.c b/arch/x86/mm/srat_32.c
index 9324f13..a97c922 100644
--- a/arch/x86/mm/srat_32.c
+++ b/arch/x86/mm/srat_32.c
@@ -264,7 +264,7 @@ int __init get_memcfg_from_srat(void)
if (node_read_chunk(chunk->nid, chunk))
continue;

- e820_register_active_regions(chunk->nid, chunk->start_pfn,
+ lmb_register_active_regions(chunk->nid, chunk->start_pfn,
min(chunk->end_pfn, max_pfn));
}
/* for out of order entries in SRAT */
diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c
index 28c6876..634392d 100644
--- a/arch/x86/mm/srat_64.c
+++ b/arch/x86/mm/srat_64.c
@@ -98,7 +98,7 @@ void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
unsigned long phys;

length = slit->header.length;
- phys = find_e820_area(0, max_pfn_mapped<<PAGE_SHIFT, length,
+ phys = find_lmb_area(0, max_pfn_mapped<<PAGE_SHIFT, length,
PAGE_SIZE);

if (phys == -1L)
@@ -324,7 +324,7 @@ static int __init nodes_cover_memory(const struct bootnode *nodes)
pxmram = 0;
}

- e820ram = max_pfn - (e820_hole_size(0, max_pfn<<PAGE_SHIFT)>>PAGE_SHIFT);
+ e820ram = max_pfn - (lmb_hole_size(0, max_pfn<<PAGE_SHIFT)>>PAGE_SHIFT);
/* We seem to lose 3 pages somewhere. Allow 1M of slack. */
if ((long)(e820ram - pxmram) >= (1<<(20 - PAGE_SHIFT))) {
printk(KERN_ERR
@@ -373,7 +373,7 @@ int __init acpi_scan_nodes(unsigned long start, unsigned long end)
}

for_each_node_mask(i, nodes_parsed)
- e820_register_active_regions(i, nodes[i].start >> PAGE_SHIFT,
+ lmb_register_active_regions(i, nodes[i].start >> PAGE_SHIFT,
nodes[i].end >> PAGE_SHIFT);
/* for out of order entries in SRAT */
sort_node_map();
--
1.6.4.2


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