Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6

[pandora-kernel.git] / arch / arm / mm / mmu.c

diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 6a3a2d0..c32f731 100644 (file)
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -248,7 +248,7 @@ static struct mem_type mem_types[] = {
        },
        [MT_MEMORY] = {
                .prot_pte  = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY |
-                               L_PTE_USER | L_PTE_EXEC,
+                               L_PTE_WRITE | L_PTE_EXEC,
                .prot_l1   = PMD_TYPE_TABLE,
                .prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE,
                .domain    = DOMAIN_KERNEL,
@@ -259,7 +259,7 @@ static struct mem_type mem_types[] = {
        },
        [MT_MEMORY_NONCACHED] = {
                .prot_pte  = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY |
-                               L_PTE_USER | L_PTE_EXEC | L_PTE_MT_BUFFERABLE,
+                               L_PTE_WRITE | L_PTE_EXEC | L_PTE_MT_BUFFERABLE,
                .prot_l1   = PMD_TYPE_TABLE,
                .prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE,
                .domain    = DOMAIN_KERNEL,
@@ -310,9 +310,8 @@ static void __init build_mem_type_table(void)
                        cachepolicy = CPOLICY_WRITEBACK;
                ecc_mask = 0;
        }
-#ifdef CONFIG_SMP
-       cachepolicy = CPOLICY_WRITEALLOC;
-#endif
+       if (is_smp())
+               cachepolicy = CPOLICY_WRITEALLOC;
 
        /*
         * Strip out features not present on earlier architectures.
@@ -406,13 +405,11 @@ static void __init build_mem_type_table(void)
        cp = &cache_policies[cachepolicy];
        vecs_pgprot = kern_pgprot = user_pgprot = cp->pte;
 
-#ifndef CONFIG_SMP
        /*
         * Only use write-through for non-SMP systems
         */
-       if (cpu_arch >= CPU_ARCH_ARMv5 && cachepolicy > CPOLICY_WRITETHROUGH)
+       if (!is_smp() && cpu_arch >= CPU_ARCH_ARMv5 && cachepolicy > CPOLICY_WRITETHROUGH)
                vecs_pgprot = cache_policies[CPOLICY_WRITETHROUGH].pte;
-#endif
 
        /*
         * Enable CPU-specific coherency if supported.
@@ -436,22 +433,23 @@ static void __init build_mem_type_table(void)
                mem_types[MT_MINICLEAN].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
                mem_types[MT_CACHECLEAN].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
 
-#ifdef CONFIG_SMP
-               /*
-                * Mark memory with the "shared" attribute for SMP systems
-                */
-               user_pgprot |= L_PTE_SHARED;
-               kern_pgprot |= L_PTE_SHARED;
-               vecs_pgprot |= L_PTE_SHARED;
-               mem_types[MT_DEVICE_WC].prot_sect |= PMD_SECT_S;
-               mem_types[MT_DEVICE_WC].prot_pte |= L_PTE_SHARED;
-               mem_types[MT_DEVICE_CACHED].prot_sect |= PMD_SECT_S;
-               mem_types[MT_DEVICE_CACHED].prot_pte |= L_PTE_SHARED;
-               mem_types[MT_MEMORY].prot_sect |= PMD_SECT_S;
-               mem_types[MT_MEMORY].prot_pte |= L_PTE_SHARED;
-               mem_types[MT_MEMORY_NONCACHED].prot_sect |= PMD_SECT_S;
-               mem_types[MT_MEMORY_NONCACHED].prot_pte |= L_PTE_SHARED;
-#endif
+               if (is_smp()) {
+                       /*
+                        * Mark memory with the "shared" attribute
+                        * for SMP systems
+                        */
+                       user_pgprot |= L_PTE_SHARED;
+                       kern_pgprot |= L_PTE_SHARED;
+                       vecs_pgprot |= L_PTE_SHARED;
+                       mem_types[MT_DEVICE_WC].prot_sect |= PMD_SECT_S;
+                       mem_types[MT_DEVICE_WC].prot_pte |= L_PTE_SHARED;
+                       mem_types[MT_DEVICE_CACHED].prot_sect |= PMD_SECT_S;
+                       mem_types[MT_DEVICE_CACHED].prot_pte |= L_PTE_SHARED;
+                       mem_types[MT_MEMORY].prot_sect |= PMD_SECT_S;
+                       mem_types[MT_MEMORY].prot_pte |= L_PTE_SHARED;
+                       mem_types[MT_MEMORY_NONCACHED].prot_sect |= PMD_SECT_S;
+                       mem_types[MT_MEMORY_NONCACHED].prot_pte |= L_PTE_SHARED;
+               }
        }
 
        /*
@@ -829,8 +827,7 @@ static void __init sanity_check_meminfo(void)
                         * rather difficult.
                         */
                        reason = "with VIPT aliasing cache";
-#ifdef CONFIG_SMP
-               } else if (tlb_ops_need_broadcast()) {
+               } else if (is_smp() && tlb_ops_need_broadcast()) {
                        /*
                         * kmap_high needs to occasionally flush TLB entries,
                         * however, if the TLB entries need to be broadcast
@@ -840,7 +837,6 @@ static void __init sanity_check_meminfo(void)
                         *   (must not be called with irqs off)
                         */
                        reason = "without hardware TLB ops broadcasting";
-#endif
                }
                if (reason) {
                        printk(KERN_CRIT "HIGHMEM is not supported %s, ignoring high memory\n",