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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>
This commit is contained in:
Grant Likely 2011-01-13 15:36:09 -07:00
parent 1b59be2a6c
commit 672c54466d
5 changed files with 8 additions and 16 deletions
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4
arch/microblaze/kernel/prom.c
View File

@ -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

6
arch/mips/kernel/prom.c
View File

@ -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

4
arch/powerpc/kernel/prom.c
View File

@ -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

8
drivers/of/fdt.c
View File

@ -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");

2
include/linux/of_fdt.h
View File

@ -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);
/*