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| author | Jeremy Kerr <jeremy.kerr@canonical.com> | 2010-02-14 17:13:47 +0300 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2010-02-14 17:13:47 +0300 |
| commit | 4ef7b373df330bc0ff037dc4792d373c9346375f (patch) | |
| tree | 5e0daa974d6de7b96c95d990cbc191085ec80349 | |
| parent | 9dfbf207802c7e8cda9d081a8d750b50633c82d2 (diff) | |
| download | linux-4ef7b373df330bc0ff037dc4792d373c9346375f.tar.xz | |
of/flattree: Don't assume HAVE_LMB
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@canonical.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Michal Simek <monstr@monstr.eu>
| -rw-r--r-- | arch/microblaze/kernel/prom.c | 5 | ||||
| -rw-r--r-- | arch/powerpc/kernel/prom.c | 5 | ||||
| -rw-r--r-- | drivers/of/fdt.c | 9 | ||||
| -rw-r--r-- | 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 050b7993c51c..a7dcaf092200 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 43c78d74ddcb..5bbbdb29f603 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 b51f797d9d9d..406757a9d7ea 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 c9cb8a7bc065..a1ca92ccb0ff 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); /* |