c6x: switch to NO_BOOTMEM

The c6x is already using memblock and does most of early memory
reservations with it, so it was only a matter of removing the bootmem
initialization and handover of the memory from memblock to bootmem.

Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Signed-off-by: Mark Salter <msalter@redhat.com>

diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index f65a084607fd4ae509db40df3385895f0c6c7a21..ab348c64d3bc7a3a4663671bb3e7b0c21bd79664 100644 (file)
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -14,6 +14,7 @@ config C6X
        select GENERIC_IRQ_SHOW
        select HAVE_ARCH_TRACEHOOK
        select HAVE_MEMBLOCK
+       select NO_BOOTMEM
        select SPARSE_IRQ
        select IRQ_DOMAIN
        select OF

diff --git a/arch/c6x/kernel/setup.c b/arch/c6x/kernel/setup.c
index 05d96a9541b5873027c8a2a7d9a41a36745c5ea7..2cfca640acfee37c5b1f1ec3a3b8607197e137ae 100644 (file)
--- a/arch/c6x/kernel/setup.c
+++ b/arch/c6x/kernel/setup.c
@@ -291,7 +291,6 @@ notrace void __init machine_init(unsigned long dt_ptr)
 
 void __init setup_arch(char **cmdline_p)
 {
-       int bootmap_size;
        struct memblock_region *reg;
 
        printk(KERN_INFO "Initializing kernel\n");
@@ -348,16 +347,6 @@ void __init setup_arch(char **cmdline_p)
        init_mm.end_data   = memory_start;
        init_mm.brk        = memory_start;
 
-       /*
-        * 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),
-                                        memory_start >> PAGE_SHIFT,
-                                        PAGE_OFFSET >> PAGE_SHIFT,
-                                        memory_end >> PAGE_SHIFT);
-       memblock_reserve(memory_start, bootmap_size);
-
        unflatten_and_copy_device_tree();
 
        c6x_cache_init();
@@ -392,22 +381,9 @@ void __init setup_arch(char **cmdline_p)
        /* Initialize the coherent memory allocator */
        coherent_mem_init(dma_start, dma_size);
 
-       /*
-        * Free all memory as a starting point.
-        */
-       free_bootmem(PAGE_OFFSET, memory_end - PAGE_OFFSET);
-
-       /*
-        * Then reserve memory which is already being used.
-        */
-       for_each_memblock(reserved, reg) {
-               pr_debug("reserved - 0x%08x-0x%08x\n",
-                        (u32) reg->base, (u32) reg->size);
-               reserve_bootmem(reg->base, reg->size, BOOTMEM_DEFAULT);
-       }
-
        max_low_pfn = PFN_DOWN(memory_end);
        min_low_pfn = PFN_UP(memory_start);
+       max_pfn = max_low_pfn;
        max_mapnr = max_low_pfn - min_low_pfn;
 
        /* Get kmalloc into gear */