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authorGrant Likely <grant.likely@secretlab.ca>2011-01-13 15:36:09 -0700
committerGrant Likely <grant.likely@secretlab.ca>2011-01-15 22:01:58 -0700
commit672c54466d24994eb9633f993862c89539504a42 (patch)
treee08f17e5fa260676912eb9b7d2263d47d667fdec
parent1b59be2a6cdcb5a12e18d8315c07c94a624de48f (diff)
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dt/flattree: Return virtual address from early_init_dt_alloc_memory_arch()
The physical address is never used by the device tree code when allocating memory for unflattening. Change the architecture's alloc hook to return the virutal address instead. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
-rw-r--r--arch/microblaze/kernel/prom.c4
-rw-r--r--arch/mips/kernel/prom.c6
-rw-r--r--arch/powerpc/kernel/prom.c4
-rw-r--r--drivers/of/fdt.c8
-rw-r--r--include/linux/of_fdt.h2
5 files changed, 8 insertions, 16 deletions
diff --git a/arch/microblaze/kernel/prom.c b/arch/microblaze/kernel/prom.c
index c881393f07fd..bceaa5543e39 100644
--- a/arch/microblaze/kernel/prom.c
+++ b/arch/microblaze/kernel/prom.c
@@ -47,9 +47,9 @@ void __init early_init_dt_add_memory_arch(u64 base, u64 size)
memblock_add(base, size);
}
-u64 __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
+void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
{
- return memblock_alloc(size, align);
+ return __va(memblock_alloc(size, align));
}
#ifdef CONFIG_EARLY_PRINTK
diff --git a/arch/mips/kernel/prom.c b/arch/mips/kernel/prom.c
index 9dbe58368953..a19811e98a41 100644
--- a/arch/mips/kernel/prom.c
+++ b/arch/mips/kernel/prom.c
@@ -45,11 +45,9 @@ void __init free_mem_mach(unsigned long addr, unsigned long size)
return free_bootmem(addr, size);
}
-u64 __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
+void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
{
- return virt_to_phys(
- __alloc_bootmem(size, align, __pa(MAX_DMA_ADDRESS))
- );
+ return __alloc_bootmem(size, align, __pa(MAX_DMA_ADDRESS));
}
#ifdef CONFIG_BLK_DEV_INITRD
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 9e3132db718b..7185f0da7dc3 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -519,9 +519,9 @@ void __init early_init_dt_add_memory_arch(u64 base, u64 size)
memblock_add(base, size);
}
-u64 __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
+void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
{
- return memblock_alloc(size, align);
+ return __va(memblock_alloc(size, align));
}
#ifdef CONFIG_BLK_DEV_INITRD
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index c787c3d95c60..af824e7e0367 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -692,12 +692,6 @@ int __init early_init_dt_scan_chosen(unsigned long node, const char *uname,
return 1;
}
-static void *__init early_device_tree_alloc(u64 size, u64 align)
-{
- unsigned long mem = early_init_dt_alloc_memory_arch(size, align);
- return __va(mem);
-}
-
/**
* unflatten_device_tree - create tree of device_nodes from flat blob
*
@@ -709,7 +703,7 @@ static void *__init early_device_tree_alloc(u64 size, u64 align)
void __init unflatten_device_tree(void)
{
__unflatten_device_tree(initial_boot_params, &allnodes,
- early_device_tree_alloc);
+ early_init_dt_alloc_memory_arch);
/* Get pointer to OF "/chosen" node for use everywhere */
of_chosen = of_find_node_by_path("/chosen");
diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h
index 0ef22a1f129e..c84d900fbbb3 100644
--- a/include/linux/of_fdt.h
+++ b/include/linux/of_fdt.h
@@ -97,7 +97,7 @@ extern void early_init_dt_check_for_initrd(unsigned long node);
extern int early_init_dt_scan_memory(unsigned long node, const char *uname,
int depth, void *data);
extern void early_init_dt_add_memory_arch(u64 base, u64 size);
-extern u64 early_init_dt_alloc_memory_arch(u64 size, u64 align);
+extern void * early_init_dt_alloc_memory_arch(u64 size, u64 align);
extern u64 dt_mem_next_cell(int s, __be32 **cellp);
/*