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Diffstat (limited to 'arch/arm/mm/cache-l2x0.c')
-rw-r--r--arch/arm/mm/cache-l2x0.c34
1 files changed, 23 insertions, 11 deletions
diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c
index c1b7bfff47f4..ec85dda1e733 100644
--- a/arch/arm/mm/cache-l2x0.c
+++ b/arch/arm/mm/cache-l2x0.c
@@ -28,18 +28,18 @@
static void __iomem *l2x0_base;
static DEFINE_SPINLOCK(l2x0_lock);
-static inline void sync_writel(unsigned long val, unsigned long reg,
- unsigned long complete_mask)
+static inline void cache_wait(void __iomem *reg, unsigned long mask)
{
- writel(val, l2x0_base + reg);
/* wait for the operation to complete */
- while (readl(l2x0_base + reg) & complete_mask)
+ while (readl(reg) & mask)
;
}
static inline void cache_sync(void)
{
- sync_writel(0, L2X0_CACHE_SYNC, 1);
+ void __iomem *base = l2x0_base;
+ writel(0, base + L2X0_CACHE_SYNC);
+ cache_wait(base + L2X0_CACHE_SYNC, 1);
}
static inline void l2x0_inv_all(void)
@@ -48,32 +48,37 @@ static inline void l2x0_inv_all(void)
/* invalidate all ways */
spin_lock_irqsave(&l2x0_lock, flags);
- sync_writel(0xff, L2X0_INV_WAY, 0xff);
+ writel(0xff, l2x0_base + L2X0_INV_WAY);
+ cache_wait(l2x0_base + L2X0_INV_WAY, 0xff);
cache_sync();
spin_unlock_irqrestore(&l2x0_lock, flags);
}
static void l2x0_inv_range(unsigned long start, unsigned long end)
{
+ void __iomem *base = l2x0_base;
unsigned long flags;
spin_lock_irqsave(&l2x0_lock, flags);
if (start & (CACHE_LINE_SIZE - 1)) {
start &= ~(CACHE_LINE_SIZE - 1);
- sync_writel(start, L2X0_CLEAN_INV_LINE_PA, 1);
+ cache_wait(base + L2X0_CLEAN_INV_LINE_PA, 1);
+ writel(start, base + L2X0_CLEAN_INV_LINE_PA);
start += CACHE_LINE_SIZE;
}
if (end & (CACHE_LINE_SIZE - 1)) {
end &= ~(CACHE_LINE_SIZE - 1);
- sync_writel(end, L2X0_CLEAN_INV_LINE_PA, 1);
+ cache_wait(base + L2X0_CLEAN_INV_LINE_PA, 1);
+ writel(end, base + L2X0_CLEAN_INV_LINE_PA);
}
while (start < end) {
unsigned long blk_end = start + min(end - start, 4096UL);
while (start < blk_end) {
- sync_writel(start, L2X0_INV_LINE_PA, 1);
+ cache_wait(base + L2X0_INV_LINE_PA, 1);
+ writel(start, base + L2X0_INV_LINE_PA);
start += CACHE_LINE_SIZE;
}
@@ -82,12 +87,14 @@ static void l2x0_inv_range(unsigned long start, unsigned long end)
spin_lock_irqsave(&l2x0_lock, flags);
}
}
+ cache_wait(base + L2X0_INV_LINE_PA, 1);
cache_sync();
spin_unlock_irqrestore(&l2x0_lock, flags);
}
static void l2x0_clean_range(unsigned long start, unsigned long end)
{
+ void __iomem *base = l2x0_base;
unsigned long flags;
spin_lock_irqsave(&l2x0_lock, flags);
@@ -96,7 +103,8 @@ static void l2x0_clean_range(unsigned long start, unsigned long end)
unsigned long blk_end = start + min(end - start, 4096UL);
while (start < blk_end) {
- sync_writel(start, L2X0_CLEAN_LINE_PA, 1);
+ cache_wait(base + L2X0_CLEAN_LINE_PA, 1);
+ writel(start, base + L2X0_CLEAN_LINE_PA);
start += CACHE_LINE_SIZE;
}
@@ -105,12 +113,14 @@ static void l2x0_clean_range(unsigned long start, unsigned long end)
spin_lock_irqsave(&l2x0_lock, flags);
}
}
+ cache_wait(base + L2X0_CLEAN_LINE_PA, 1);
cache_sync();
spin_unlock_irqrestore(&l2x0_lock, flags);
}
static void l2x0_flush_range(unsigned long start, unsigned long end)
{
+ void __iomem *base = l2x0_base;
unsigned long flags;
spin_lock_irqsave(&l2x0_lock, flags);
@@ -119,7 +129,8 @@ static void l2x0_flush_range(unsigned long start, unsigned long end)
unsigned long blk_end = start + min(end - start, 4096UL);
while (start < blk_end) {
- sync_writel(start, L2X0_CLEAN_INV_LINE_PA, 1);
+ cache_wait(base + L2X0_CLEAN_INV_LINE_PA, 1);
+ writel(start, base + L2X0_CLEAN_INV_LINE_PA);
start += CACHE_LINE_SIZE;
}
@@ -128,6 +139,7 @@ static void l2x0_flush_range(unsigned long start, unsigned long end)
spin_lock_irqsave(&l2x0_lock, flags);
}
}
+ cache_wait(base + L2X0_CLEAN_INV_LINE_PA, 1);
cache_sync();
spin_unlock_irqrestore(&l2x0_lock, flags);
}