Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[pandora-kernel.git] / arch / arm / mm / cache-l2x0.c

diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c
index f2ce38e..ef59099 100644 (file)
--- 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",