[PATCH] dt/flattree: Return virtual address from early_init_dt_alloc_memory_arch()
From: Grant Likely <hidden>
Date: 2011-01-16 05:48:13
Also in:
lkml
Subsystem:
linux for powerpc (32-bit and 64-bit), microblaze architecture, mips, open firmware and flattened device tree, the rest · Maintainers:
Madhavan Srinivasan, Michal Simek, Thomas Bogendoerfer, Rob Herring, Saravana Kannan, Linus Torvalds
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-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org> --- arch/microblaze/kernel/prom.c | 4 ++-- arch/mips/kernel/prom.c | 6 ++---- arch/powerpc/kernel/prom.c | 4 ++-- drivers/of/fdt.c | 8 +------- include/linux/of_fdt.h | 2 +- 5 files changed, 8 insertions(+), 16 deletions(-)
diff --git a/arch/microblaze/kernel/prom.c b/arch/microblaze/kernel/prom.c
index c881393..bceaa55 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 9dbe583..a19811e 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 9e3132d..7185f0d 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 c787c3d..af824e7 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 0ef22a1..c84d900 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); /*