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authorRob Herring <robh@kernel.org>2018-03-17 00:33:06 +0300
committerYoshinori Sato <ysato@users.sourceforge.jp>2018-08-22 13:14:18 +0300
commitc489dfefe739d37dde1cd7b26cd324607cedd934 (patch)
treef275a760a55cf3e9f6972dbf56fbafa48a66735e /arch
parent811d1b0e65bed442050d62a48c39263f4c5b2d68 (diff)
downloadlinux-c489dfefe739d37dde1cd7b26cd324607cedd934.tar.xz
h8300: switch to NO_BOOTMEM
Commit 0fa1c579349f ("of/fdt: use memblock_virt_alloc for early alloc") inadvertently switched the DT unflattening allocations from memblock to bootmem which doesn't work because the unflattening happens before bootmem is initialized. Swapping the order of bootmem init and unflattening could also fix this, but removing bootmem is desired. So enable NO_BOOTMEM on h8300 like other architectures have done. Fixes: 0fa1c579349f ("of/fdt: use memblock_virt_alloc for early alloc") Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: uclinux-h8-devel@lists.sourceforge.jp Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Diffstat (limited to 'arch')
-rw-r--r--arch/h8300/Kconfig1
-rw-r--r--arch/h8300/kernel/setup.c36
2 files changed, 9 insertions, 28 deletions
diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index 091d6d04b5e5..efc602634064 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -16,6 +16,7 @@ config H8300
select OF_IRQ
select OF_EARLY_FLATTREE
select HAVE_MEMBLOCK
+ select NO_BOOTMEM
select TIMER_OF
select H8300_TMR8
select HAVE_KERNEL_GZIP
diff --git a/arch/h8300/kernel/setup.c b/arch/h8300/kernel/setup.c
index a4d0470c10a9..33ed980e7aea 100644
--- a/arch/h8300/kernel/setup.c
+++ b/arch/h8300/kernel/setup.c
@@ -71,10 +71,6 @@ void __init h8300_fdt_init(void *fdt, char *bootargs)
static void __init bootmem_init(void)
{
- int bootmap_size;
- unsigned long ram_start_pfn;
- unsigned long free_ram_start_pfn;
- unsigned long ram_end_pfn;
struct memblock_region *region;
memory_end = memory_start = 0;
@@ -88,33 +84,17 @@ static void __init bootmem_init(void)
if (!memory_end)
panic("No memory!");
- ram_start_pfn = PFN_UP(memory_start);
- /* free_ram_start_pfn is first page after kernel */
- free_ram_start_pfn = PFN_UP(__pa(_end));
- ram_end_pfn = PFN_DOWN(memblock_end_of_DRAM());
+ /* setup bootmem globals (we use no_bootmem, but mm still depends on this) */
+ min_low_pfn = PFN_UP(memory_start);
+ max_low_pfn = PFN_DOWN(memblock_end_of_DRAM());
+ max_pfn = max_low_pfn;
- max_pfn = ram_end_pfn;
+ memblock_reserve(__pa(_stext), _end - _stext);
- /*
- * give all the memory to the bootmap allocator, tell it to put the
- * boot mem_map at the start of memory
- */
- bootmap_size = init_bootmem_node(NODE_DATA(0),
- free_ram_start_pfn,
- 0,
- ram_end_pfn);
- /*
- * free the usable memory, we have to make sure we do not free
- * the bootmem bitmap so we then reserve it after freeing it :-)
- */
- free_bootmem(PFN_PHYS(free_ram_start_pfn),
- (ram_end_pfn - free_ram_start_pfn) << PAGE_SHIFT);
- reserve_bootmem(PFN_PHYS(free_ram_start_pfn), bootmap_size,
- BOOTMEM_DEFAULT);
+ early_init_fdt_reserve_self();
+ early_init_fdt_scan_reserved_mem();
- for_each_memblock(reserved, region) {
- reserve_bootmem(region->base, region->size, BOOTMEM_DEFAULT);
- }
+ memblock_dump_all();
}
void __init setup_arch(char **cmdline_p)