On Sat, 2010-02-13 at 09:02 -0700, Grant Likely wrote:
> From: Jeremy Kerr <jeremy.kerr@xxxxxxxxxxxxx>
>
> We don't always have lmb available, so make arches provide an
> early_init_dt_alloc_memory_arch() to handle the allocation of
> memory in the fdt code.
>
> When we don't have lmb.h included, we need asm/page.h for __va.
>
> Signed-off-by: Jeremy Kerr <jeremy.kerr@xxxxxxxxxxxxx>
> Signed-off-by: Grant Likely <grant.likely@xxxxxxxxxxxx>
Acked-by: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
> ---
>
> arch/microblaze/kernel/prom.c | 5 +++++
> arch/powerpc/kernel/prom.c | 5 +++++
> drivers/of/fdt.c | 9 ++++++---
> include/linux/of_fdt.h | 1 +
> 4 files changed, 17 insertions(+), 3 deletions(-)
>
> diff --git a/arch/microblaze/kernel/prom.c b/arch/microblaze/kernel/prom.c
> index 050b799..a7dcaf0 100644
> --- a/arch/microblaze/kernel/prom.c
> +++ b/arch/microblaze/kernel/prom.c
> @@ -55,6 +55,11 @@ void __init early_init_dt_add_memory_arch(u64 base, u64 size)
> lmb_add(base, size);
> }
>
> +u64 __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
> +{
> + return lmb_alloc(size, align);
> +}
> +
> #ifdef CONFIG_EARLY_PRINTK
> /* MS this is Microblaze specifig function */
> static int __init early_init_dt_scan_serial(unsigned long node,
> diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
> index 43c78d7..5bbbdb2 100644
> --- a/arch/powerpc/kernel/prom.c
> +++ b/arch/powerpc/kernel/prom.c
> @@ -510,6 +510,11 @@ void __init early_init_dt_add_memory_arch(u64 base, u64 size)
> memstart_addr = min((u64)memstart_addr, base);
> }
>
> +u64 __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
> +{
> + return lmb_alloc(size, align);
> +}
> +
> #ifdef CONFIG_BLK_DEV_INITRD
> void __init early_init_dt_setup_initrd_arch(unsigned long start,
> unsigned long end)
> diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
> index b51f797..406757a 100644
> --- a/drivers/of/fdt.c
> +++ b/drivers/of/fdt.c
> @@ -10,16 +10,18 @@
> */
>
> #include <linux/kernel.h>
> -#include <linux/lmb.h>
> #include <linux/initrd.h>
> #include <linux/of.h>
> #include <linux/of_fdt.h>
> -
> +#include <linux/string.h>
> +#include <linux/errno.h>
>
> #ifdef CONFIG_PPC
> #include <asm/machdep.h>
> #endif /* CONFIG_PPC */
>
> +#include <asm/page.h>
> +
> int __initdata dt_root_addr_cells;
> int __initdata dt_root_size_cells;
>
> @@ -560,7 +562,8 @@ void __init unflatten_device_tree(void)
> pr_debug(" size is %lx, allocating...\n", size);
>
> /* Allocate memory for the expanded device tree */
> - mem = lmb_alloc(size + 4, __alignof__(struct device_node));
> + mem = early_init_dt_alloc_memory_arch(size + 4,
> + __alignof__(struct device_node));
> mem = (unsigned long) __va(mem);
>
> ((__be32 *)mem)[size / 4] = cpu_to_be32(0xdeadbeef);
> diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h
> index c9cb8a7..a1ca92c 100644
> --- a/include/linux/of_fdt.h
> +++ b/include/linux/of_fdt.h
> @@ -78,6 +78,7 @@ 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 u64 dt_mem_next_cell(int s, __be32 **cellp);
>
> /*
--
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