7 files changed, 24 insertions, 12 deletions

diff --git a/arch/arm/mm/copypage-feroceon.c b/arch/arm/mm/copypage-feroceon.c
index 5eb4fd93893d..ac163de7dc01 100644
--- a/arch/arm/mm/copypage-feroceon.c
+++ b/arch/arm/mm/copypage-feroceon.c
@@ -18,7 +18,7 @@ feroceon_copy_user_page(void *kto, const void *kfrom)
 {
         asm("\
         stmfd   sp!, {r4-r9, lr}                \n\
-        mov     ip, %0                          \n\
+        mov     ip, %2                          \n\
 1:      mov     lr, r1                          \n\
         ldmia   r1!, {r2 - r9}                  \n\
         pld     [lr, #32]                       \n\
@@ -64,7 +64,7 @@ feroceon_copy_user_page(void *kto, const void *kfrom)
         mcr     p15, 0, ip, c7, c10, 4          @ drain WB\n\
         ldmfd   sp!, {r4-r9, pc}"
         :
-        : "I" (PAGE_SIZE));
+        : "r" (kto), "r" (kfrom), "I" (PAGE_SIZE));
 }
 
 void feroceon_copy_user_highpage(struct page *to, struct page *from,
diff --git a/arch/arm/mm/copypage-v4wb.c b/arch/arm/mm/copypage-v4wb.c
index 7c2eb55cd4a9..cb589cbb2b6c 100644
--- a/arch/arm/mm/copypage-v4wb.c
+++ b/arch/arm/mm/copypage-v4wb.c
@@ -27,7 +27,7 @@ v4wb_copy_user_page(void *kto, const void *kfrom)
 {
         asm("\
         stmfd   sp!, {r4, lr}                   @ 2\n\
-        mov     r2, %0                          @ 1\n\
+        mov     r2, %2                          @ 1\n\
         ldmia   r1!, {r3, r4, ip, lr}           @ 4\n\
 1:      mcr     p15, 0, r0, c7, c6, 1           @ 1   invalidate D line\n\
         stmia   r0!, {r3, r4, ip, lr}           @ 4\n\
@@ -44,7 +44,7 @@ v4wb_copy_user_page(void *kto, const void *kfrom)
         mcr     p15, 0, r1, c7, c10, 4          @ 1   drain WB\n\
         ldmfd    sp!, {r4, pc}                  @ 3"
         :
-        : "I" (PAGE_SIZE / 64));
+        : "r" (kto), "r" (kfrom), "I" (PAGE_SIZE / 64));
 }
 
 void v4wb_copy_user_highpage(struct page *to, struct page *from,
diff --git a/arch/arm/mm/copypage-v4wt.c b/arch/arm/mm/copypage-v4wt.c
index 172e6a55458e..30c7d048a324 100644
--- a/arch/arm/mm/copypage-v4wt.c
+++ b/arch/arm/mm/copypage-v4wt.c
@@ -25,7 +25,7 @@ v4wt_copy_user_page(void *kto, const void *kfrom)
 {
         asm("\
         stmfd   sp!, {r4, lr}                   @ 2\n\
-        mov     r2, %0                          @ 1\n\
+        mov     r2, %2                          @ 1\n\
         ldmia   r1!, {r3, r4, ip, lr}           @ 4\n\
 1:      stmia   r0!, {r3, r4, ip, lr}           @ 4\n\
         ldmia   r1!, {r3, r4, ip, lr}           @ 4+1\n\
@@ -40,7 +40,7 @@ v4wt_copy_user_page(void *kto, const void *kfrom)
         mcr     p15, 0, r2, c7, c7, 0           @ flush ID cache\n\
         ldmfd   sp!, {r4, pc}                   @ 3"
         :
-        : "I" (PAGE_SIZE / 64));
+        : "r" (kto), "r" (kfrom), "I" (PAGE_SIZE / 64));
 }
 
 void v4wt_copy_user_highpage(struct page *to, struct page *from,
diff --git a/arch/arm/mm/copypage-xsc3.c b/arch/arm/mm/copypage-xsc3.c
index 747ad4140fc7..f9cde0702f1e 100644
--- a/arch/arm/mm/copypage-xsc3.c
+++ b/arch/arm/mm/copypage-xsc3.c
@@ -34,7 +34,7 @@ xsc3_mc_copy_user_page(void *kto, const void *kfrom)
 {
         asm("\
         stmfd   sp!, {r4, r5, lr}               \n\
-        mov     lr, %0                          \n\
+        mov     lr, %2                          \n\
                                                 \n\
         pld     [r1, #0]                        \n\
         pld     [r1, #32]                       \n\
@@ -67,7 +67,7 @@ xsc3_mc_copy_user_page(void *kto, const void *kfrom)
                                                 \n\
         ldmfd   sp!, {r4, r5, pc}"
         :
-        : "I" (PAGE_SIZE / 64 - 1));
+        : "r" (kto), "r" (kfrom), "I" (PAGE_SIZE / 64 - 1));
 }
 
 void xsc3_mc_copy_user_highpage(struct page *to, struct page *from,
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
index 92f5801f99c1..cbfb2edcf7d1 100644
--- a/arch/arm/mm/fault.c
+++ b/arch/arm/mm/fault.c
@@ -393,6 +393,9 @@ do_translation_fault(unsigned long addr, unsigned int fsr,
         if (addr < TASK_SIZE)
                 return do_page_fault(addr, fsr, regs);
 
+        if (user_mode(regs))
+                goto bad_area;
+
         index = pgd_index(addr);
 
         /*
diff --git a/arch/arm/mm/highmem.c b/arch/arm/mm/highmem.c
index 77b030f5ec09..086816b205b8 100644
--- a/arch/arm/mm/highmem.c
+++ b/arch/arm/mm/highmem.c
@@ -48,7 +48,16 @@ void *kmap_atomic(struct page *page, enum km_type type)
 
         debug_kmap_atomic(type);
 
-        kmap = kmap_high_get(page);
+#ifdef CONFIG_DEBUG_HIGHMEM
+        /*
+         * There is no cache coherency issue when non VIVT, so force the
+         * dedicated kmap usage for better debugging purposes in that case.
+         */
+        if (!cache_is_vivt())
+                kmap = NULL;
+        else
+#endif
+                kmap = kmap_high_get(page);
         if (kmap)
                 return kmap;
 
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 1ba6cf5a2c02..f6a999465323 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -678,10 +678,10 @@ void __init mem_init(void)
 void free_initmem(void)
 {
 #ifdef CONFIG_HAVE_TCM
-        extern char *__tcm_start, *__tcm_end;
+        extern char __tcm_start, __tcm_end;
 
-        totalram_pages += free_area(__phys_to_pfn(__pa(__tcm_start)),
-                                    __phys_to_pfn(__pa(__tcm_end)),
+        totalram_pages += free_area(__phys_to_pfn(__pa(&__tcm_start)),
+                                    __phys_to_pfn(__pa(&__tcm_end)),
                                     "TCM link");
 #endif