Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

[linux-2.6] / arch / arm / mm / mmu.c

diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 02e050ae59f6871e89d20481c66e251063486412..d41a75ed3dce27431fd11c78f7cf27553bbbe61c 100644 (file)
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -114,6 +114,10 @@ static void __init early_cachepolicy(char **p)
        }
        if (i == ARRAY_SIZE(cache_policies))
                printk(KERN_ERR "ERROR: unknown or unsupported cache policy\n");
+       if (cpu_architecture() >= CPU_ARCH_ARMv6) {
+               printk(KERN_WARNING "Only cachepolicy=writeback supported on ARMv6 and later\n");
+               cachepolicy = CPOLICY_WRITEBACK;
+       }
        flush_cache_all();
        set_cr(cr_alignment);
 }
@@ -252,13 +256,15 @@ static void __init build_mem_type_table(void)
        int cpu_arch = cpu_architecture();
        int i;
 
+       if (cpu_arch < CPU_ARCH_ARMv6) {
 #if defined(CONFIG_CPU_DCACHE_DISABLE)
-       if (cachepolicy > CPOLICY_BUFFERED)
-               cachepolicy = CPOLICY_BUFFERED;
+               if (cachepolicy > CPOLICY_BUFFERED)
+                       cachepolicy = CPOLICY_BUFFERED;
 #elif defined(CONFIG_CPU_DCACHE_WRITETHROUGH)
-       if (cachepolicy > CPOLICY_WRITETHROUGH)
-               cachepolicy = CPOLICY_WRITETHROUGH;
+               if (cachepolicy > CPOLICY_WRITETHROUGH)
+                       cachepolicy = CPOLICY_WRITETHROUGH;
 #endif
+       }
        if (cpu_arch < CPU_ARCH_ARMv5) {
                if (cachepolicy >= CPOLICY_WRITEALLOC)
                        cachepolicy = CPOLICY_WRITEBACK;
@@ -527,9 +533,9 @@ void __init create_mapping(struct map_desc *md)
                return;
        }
 
-       addr = md->virtual;
+       addr = md->virtual & PAGE_MASK;
        phys = (unsigned long)__pfn_to_phys(md->pfn);
-       length = PAGE_ALIGN(md->length);
+       length = PAGE_ALIGN(md->length + (md->virtual & ~PAGE_MASK));
 
        if (type->prot_l1 == 0 && ((addr | phys | length) & ~SECTION_MASK)) {
                printk(KERN_WARNING "BUG: map for 0x%08lx at 0x%08lx can not "
@@ -599,9 +605,11 @@ void __init reserve_node_zero(pg_data_t *pgdat)
         * Note that this can only be in node 0.
         */
 #ifdef CONFIG_XIP_KERNEL
-       reserve_bootmem_node(pgdat, __pa(&__data_start), &_end - &__data_start);
+       reserve_bootmem_node(pgdat, __pa(&__data_start), &_end - &__data_start,
+                       BOOTMEM_DEFAULT);
 #else
-       reserve_bootmem_node(pgdat, __pa(&_stext), &_end - &_stext);
+       reserve_bootmem_node(pgdat, __pa(&_stext), &_end - &_stext,
+                       BOOTMEM_DEFAULT);
 #endif
 
        /*
@@ -609,7 +617,7 @@ void __init reserve_node_zero(pg_data_t *pgdat)
         * and can only be in node 0.
         */
        reserve_bootmem_node(pgdat, __pa(swapper_pg_dir),
-                            PTRS_PER_PGD * sizeof(pgd_t));
+                            PTRS_PER_PGD * sizeof(pgd_t), BOOTMEM_DEFAULT);
 
        /*
         * Hmm... This should go elsewhere, but we really really need to
@@ -632,8 +640,10 @@ void __init reserve_node_zero(pg_data_t *pgdat)
        /* H1940 and RX3715 need to reserve this for suspend */
 
        if (machine_is_h1940() || machine_is_rx3715()) {
-               reserve_bootmem_node(pgdat, 0x30003000, 0x1000);
-               reserve_bootmem_node(pgdat, 0x30081000, 0x1000);
+               reserve_bootmem_node(pgdat, 0x30003000, 0x1000,
+                               BOOTMEM_DEFAULT);
+               reserve_bootmem_node(pgdat, 0x30081000, 0x1000,
+                               BOOTMEM_DEFAULT);
        }
 
 #ifdef CONFIG_SA1111
@@ -644,7 +654,8 @@ void __init reserve_node_zero(pg_data_t *pgdat)
        res_size = __pa(swapper_pg_dir) - PHYS_OFFSET;
 #endif
        if (res_size)
-               reserve_bootmem_node(pgdat, PHYS_OFFSET, res_size);
+               reserve_bootmem_node(pgdat, PHYS_OFFSET, res_size,
+                               BOOTMEM_DEFAULT);
 }
 
 /*