Merge branch 'tip/perf/urgent-2' of git://git.kernel.org/pub/scm/linux/kernel/git...

[sfrench/cifs-2.6.git] / arch / arm / kernel / head.S

diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index 486a15ae901192fa3e26539b3d2b7003a1528e0f..e0eb9a1cae774fc714548c3e11ad5141cc82190e 100644 (file)
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -184,13 +184,22 @@ __create_page_tables:
        orr     r3, r3, #3                      @ PGD block type
        mov     r6, #4                          @ PTRS_PER_PGD
        mov     r7, #1 << (55 - 32)             @ L_PGD_SWAPPER
-1:     str     r3, [r0], #4                    @ set bottom PGD entry bits
+1:
+#ifdef CONFIG_CPU_ENDIAN_BE8
        str     r7, [r0], #4                    @ set top PGD entry bits
+       str     r3, [r0], #4                    @ set bottom PGD entry bits
+#else
+       str     r3, [r0], #4                    @ set bottom PGD entry bits
+       str     r7, [r0], #4                    @ set top PGD entry bits
+#endif
        add     r3, r3, #0x1000                 @ next PMD table
        subs    r6, r6, #1
        bne     1b
 
        add     r4, r4, #0x1000                 @ point to the PMD tables
+#ifdef CONFIG_CPU_ENDIAN_BE8
+       add     r4, r4, #4                      @ we only write the bottom word
+#endif
 #endif
 
        ldr     r7, [r10, #PROCINFO_MM_MMUFLAGS] @ mm_mmuflags
@@ -258,6 +267,11 @@ __create_page_tables:
        addne   r6, r6, #1 << SECTION_SHIFT
        strne   r6, [r3]
 
+#if defined(CONFIG_LPAE) && defined(CONFIG_CPU_ENDIAN_BE8)
+       sub     r4, r4, #4                      @ Fixup page table pointer
+                                               @ for 64-bit descriptors
+#endif
+
 #ifdef CONFIG_DEBUG_LL
 #if !defined(CONFIG_DEBUG_ICEDCC) && !defined(CONFIG_DEBUG_SEMIHOSTING)
        /*
@@ -276,13 +290,17 @@ __create_page_tables:
        orr     r3, r7, r3, lsl #SECTION_SHIFT
 #ifdef CONFIG_ARM_LPAE
        mov     r7, #1 << (54 - 32)             @ XN
+#ifdef CONFIG_CPU_ENDIAN_BE8
+       str     r7, [r0], #4
+       str     r3, [r0], #4
 #else
-       orr     r3, r3, #PMD_SECT_XN
-#endif
        str     r3, [r0], #4
-#ifdef CONFIG_ARM_LPAE
        str     r7, [r0], #4
 #endif
+#else
+       orr     r3, r3, #PMD_SECT_XN
+       str     r3, [r0], #4
+#endif
 
 #else /* CONFIG_DEBUG_ICEDCC || CONFIG_DEBUG_SEMIHOSTING */
        /* we don't need any serial debugging mappings */