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authorDavid S. Miller <davem@davemloft.net>2008-02-13 22:22:23 -0500
committerDavid S. Miller <davem@davemloft.net>2008-04-24 02:32:12 -0400
commit4a28333984be123d9c063df23175c48749c4b4a0 (patch)
treefd463dad09c9578b9762cddd508cdae73c0d45c3 /arch/sparc64/kernel
parentad072004ca35a9918964ca7aee2bf00d79c8657f (diff)
[SPARC64]: Initialize MDESC earlier and use lmb_alloc()
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64/kernel')
-rw-r--r--arch/sparc64/kernel/mdesc.c28
1 files changed, 16 insertions, 12 deletions
diff --git a/arch/sparc64/kernel/mdesc.c b/arch/sparc64/kernel/mdesc.c
index 910083589569..dde52bcf5c64 100644
--- a/arch/sparc64/kernel/mdesc.c
+++ b/arch/sparc64/kernel/mdesc.c
@@ -1,10 +1,10 @@
1/* mdesc.c: Sun4V machine description handling. 1/* mdesc.c: Sun4V machine description handling.
2 * 2 *
3 * Copyright (C) 2007 David S. Miller <davem@davemloft.net> 3 * Copyright (C) 2007, 2008 David S. Miller <davem@davemloft.net>
4 */ 4 */
5#include <linux/kernel.h> 5#include <linux/kernel.h>
6#include <linux/types.h> 6#include <linux/types.h>
7#include <linux/bootmem.h> 7#include <linux/lmb.h>
8#include <linux/log2.h> 8#include <linux/log2.h>
9#include <linux/list.h> 9#include <linux/list.h>
10#include <linux/slab.h> 10#include <linux/slab.h>
@@ -84,24 +84,28 @@ static void mdesc_handle_init(struct mdesc_handle *hp,
84 hp->handle_size = handle_size; 84 hp->handle_size = handle_size;
85} 85}
86 86
87static struct mdesc_handle * __init mdesc_bootmem_alloc(unsigned int mdesc_size) 87static struct mdesc_handle * __init mdesc_lmb_alloc(unsigned int mdesc_size)
88{ 88{
89 struct mdesc_handle *hp;
90 unsigned int handle_size, alloc_size; 89 unsigned int handle_size, alloc_size;
90 struct mdesc_handle *hp;
91 unsigned long paddr;
91 92
92 handle_size = (sizeof(struct mdesc_handle) - 93 handle_size = (sizeof(struct mdesc_handle) -
93 sizeof(struct mdesc_hdr) + 94 sizeof(struct mdesc_hdr) +
94 mdesc_size); 95 mdesc_size);
95 alloc_size = PAGE_ALIGN(handle_size); 96 alloc_size = PAGE_ALIGN(handle_size);
96 97
97 hp = __alloc_bootmem(alloc_size, PAGE_SIZE, 0UL); 98 paddr = lmb_alloc(alloc_size, PAGE_SIZE);
98 if (hp)
99 mdesc_handle_init(hp, handle_size, hp);
100 99
100 hp = NULL;
101 if (paddr) {
102 hp = __va(paddr);
103 mdesc_handle_init(hp, handle_size, hp);
104 }
101 return hp; 105 return hp;
102} 106}
103 107
104static void mdesc_bootmem_free(struct mdesc_handle *hp) 108static void mdesc_lmb_free(struct mdesc_handle *hp)
105{ 109{
106 unsigned int alloc_size, handle_size = hp->handle_size; 110 unsigned int alloc_size, handle_size = hp->handle_size;
107 unsigned long start, end; 111 unsigned long start, end;
@@ -124,9 +128,9 @@ static void mdesc_bootmem_free(struct mdesc_handle *hp)
124 } 128 }
125} 129}
126 130
127static struct mdesc_mem_ops bootmem_mdesc_ops = { 131static struct mdesc_mem_ops lmb_mdesc_ops = {
128 .alloc = mdesc_bootmem_alloc, 132 .alloc = mdesc_lmb_alloc,
129 .free = mdesc_bootmem_free, 133 .free = mdesc_lmb_free,
130}; 134};
131 135
132static struct mdesc_handle *mdesc_kmalloc(unsigned int mdesc_size) 136static struct mdesc_handle *mdesc_kmalloc(unsigned int mdesc_size)
@@ -888,7 +892,7 @@ void __init sun4v_mdesc_init(void)
888 892
889 printk("MDESC: Size is %lu bytes.\n", len); 893 printk("MDESC: Size is %lu bytes.\n", len);
890 894
891 hp = mdesc_alloc(len, &bootmem_mdesc_ops); 895 hp = mdesc_alloc(len, &lmb_mdesc_ops);
892 if (hp == NULL) { 896 if (hp == NULL) {
893 prom_printf("MDESC: alloc of %lu bytes failed.\n", len); 897 prom_printf("MDESC: alloc of %lu bytes failed.\n", len);
894 prom_halt(); 898 prom_halt();