Merge branch 'misc' into devel

Conflicts:
	arch/arm/Kconfig

4 files changed, 31 insertions, 33 deletions

diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index e4509bae8fc..05b26a03c20 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -845,6 +845,11 @@ config CACHE_XSC3L2
 	help
 	  This option enables the L2 cache on XScale3.
 
+config ARM_L1_CACHE_SHIFT_6
+	bool
+	help
+	  Setting ARM L1 cache line size to 64 Bytes.
+
 config ARM_L1_CACHE_SHIFT
 	int
 	default 6 if ARM_L1_CACHE_SHIFT_6
diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c
index f2ce38e085d..ef59099a546 100644
--- a/arch/arm/mm/cache-l2x0.c
+++ b/arch/arm/mm/cache-l2x0.c
@@ -73,18 +73,24 @@ static inline void l2x0_inv_line(unsigned long addr)
 	writel_relaxed(addr, base + L2X0_INV_LINE_PA);
 }
 
-#ifdef CONFIG_PL310_ERRATA_588369
-static void debug_writel(unsigned long val)
-{
-	extern void omap_smc1(u32 fn, u32 arg);
+#if defined(CONFIG_PL310_ERRATA_588369) || defined(CONFIG_PL310_ERRATA_727915)
 
-	/*
-	 * Texas Instrument secure monitor api to modify the
-	 * PL310 Debug Control Register.
-	 */
-	omap_smc1(0x100, val);
+#define debug_writel(val)	outer_cache.set_debug(val)
+
+static void l2x0_set_debug(unsigned long val)
+{
+	writel_relaxed(val, l2x0_base + L2X0_DEBUG_CTRL);
 }
+#else
+/* Optimised out for non-errata case */
+static inline void debug_writel(unsigned long val)
+{
+}
+
+#define l2x0_set_debug	NULL
+#endif
 
+#ifdef CONFIG_PL310_ERRATA_588369
 static inline void l2x0_flush_line(unsigned long addr)
 {
 	void __iomem *base = l2x0_base;
@@ -97,11 +103,6 @@ static inline void l2x0_flush_line(unsigned long addr)
 }
 #else
 
-/* Optimised out for non-errata case */
-static inline void debug_writel(unsigned long val)
-{
-}
-
 static inline void l2x0_flush_line(unsigned long addr)
 {
 	void __iomem *base = l2x0_base;
@@ -125,9 +126,11 @@ static void l2x0_flush_all(void)
 
 	/* clean all ways */
 	spin_lock_irqsave(&l2x0_lock, flags);
+	debug_writel(0x03);
 	writel_relaxed(l2x0_way_mask, l2x0_base + L2X0_CLEAN_INV_WAY);
 	cache_wait_way(l2x0_base + L2X0_CLEAN_INV_WAY, l2x0_way_mask);
 	cache_sync();
+	debug_writel(0x00);
 	spin_unlock_irqrestore(&l2x0_lock, flags);
 }
 
@@ -335,6 +338,7 @@ void __init l2x0_init(void __iomem *base, __u32 aux_val, __u32 aux_mask)
 	outer_cache.flush_all = l2x0_flush_all;
 	outer_cache.inv_all = l2x0_inv_all;
 	outer_cache.disable = l2x0_disable;
+	outer_cache.set_debug = l2x0_set_debug;
 
 	printk(KERN_INFO "%s cache controller enabled\n", type);
 	printk(KERN_INFO "l2x0: %d ways, CACHE_ID 0x%08x, AUX_CTRL 0x%08x, Cache size: %d B\n",
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 3c67e92f7d5..ff7b43b5885 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -827,16 +827,6 @@ static void __init sanity_check_meminfo(void)
 			 * rather difficult.
 			 */
 			reason = "with VIPT aliasing cache";
-		} 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
-			 * we may deadlock:
-			 *  kmap_high(irqs off)->flush_all_zero_pkmaps->
-			 *  flush_tlb_kernel_range->smp_call_function_many
-			 *   (must not be called with irqs off)
-			 */
-			reason = "without hardware TLB ops broadcasting";
 		}
 		if (reason) {
 			printk(KERN_CRIT "HIGHMEM is not supported %s, ignoring high memory\n",
diff --git a/arch/arm/mm/vmregion.c b/arch/arm/mm/vmregion.c
index 935993e1b1e..036fdbfdd62 100644
--- a/arch/arm/mm/vmregion.c
+++ b/arch/arm/mm/vmregion.c
@@ -38,7 +38,7 @@ struct arm_vmregion *
 arm_vmregion_alloc(struct arm_vmregion_head *head, size_t align,
 		   size_t size, gfp_t gfp)
 {
-	unsigned long addr = head->vm_start, end = head->vm_end - size;
+	unsigned long start = head->vm_start, addr = head->vm_end;
 	unsigned long flags;
 	struct arm_vmregion *c, *new;
 
@@ -54,21 +54,20 @@ arm_vmregion_alloc(struct arm_vmregion_head *head, size_t align,
 
 	spin_lock_irqsave(&head->vm_lock, flags);
 
-	list_for_each_entry(c, &head->vm_list, vm_list) {
-		if ((addr + size) < addr)
-			goto nospc;
-		if ((addr + size) <= c->vm_start)
+	addr = rounddown(addr - size, align);
+	list_for_each_entry_reverse(c, &head->vm_list, vm_list) {
+		if (addr >= c->vm_end)
 			goto found;
-		addr = ALIGN(c->vm_end, align);
-		if (addr > end)
+		addr = rounddown(c->vm_start - size, align);
+		if (addr < start)
 			goto nospc;
 	}
 
  found:
 	/*
-	 * Insert this entry _before_ the one we found.
+	 * Insert this entry after the one we found.
 	 */
-	list_add_tail(&new->vm_list, &c->vm_list);
+	list_add(&new->vm_list, &c->vm_list);
 	new->vm_start = addr;
 	new->vm_end = addr + size;
 	new->vm_active = 1;