ARM: 5916/1: ARM: L2 : Add maintainace by line helper functions
This patch adds the cache maintainance by line helper functions.
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c
index cb8fc65..1a14d18 100644
--- a/arch/arm/mm/cache-l2x0.c
+++ b/arch/arm/mm/cache-l2x0.c
@@ -42,6 +42,27 @@
cache_wait(base + L2X0_CACHE_SYNC, 1);
}
+static inline void l2x0_clean_line(unsigned long addr)
+{
+ void __iomem *base = l2x0_base;
+ cache_wait(base + L2X0_CLEAN_LINE_PA, 1);
+ writel(addr, base + L2X0_CLEAN_LINE_PA);
+}
+
+static inline void l2x0_inv_line(unsigned long addr)
+{
+ void __iomem *base = l2x0_base;
+ cache_wait(base + L2X0_INV_LINE_PA, 1);
+ writel(addr, base + L2X0_INV_LINE_PA);
+}
+
+static inline void l2x0_flush_line(unsigned long addr)
+{
+ void __iomem *base = l2x0_base;
+ cache_wait(base + L2X0_CLEAN_INV_LINE_PA, 1);
+ writel(addr, base + L2X0_CLEAN_INV_LINE_PA);
+}
+
static inline void l2x0_inv_all(void)
{
unsigned long flags;
@@ -62,23 +83,20 @@
spin_lock_irqsave(&l2x0_lock, flags);
if (start & (CACHE_LINE_SIZE - 1)) {
start &= ~(CACHE_LINE_SIZE - 1);
- cache_wait(base + L2X0_CLEAN_INV_LINE_PA, 1);
- writel(start, base + L2X0_CLEAN_INV_LINE_PA);
+ l2x0_flush_line(start);
start += CACHE_LINE_SIZE;
}
if (end & (CACHE_LINE_SIZE - 1)) {
end &= ~(CACHE_LINE_SIZE - 1);
- cache_wait(base + L2X0_CLEAN_INV_LINE_PA, 1);
- writel(end, base + L2X0_CLEAN_INV_LINE_PA);
+ l2x0_flush_line(end);
}
while (start < end) {
unsigned long blk_end = start + min(end - start, 4096UL);
while (start < blk_end) {
- cache_wait(base + L2X0_INV_LINE_PA, 1);
- writel(start, base + L2X0_INV_LINE_PA);
+ l2x0_inv_line(start);
start += CACHE_LINE_SIZE;
}
@@ -103,8 +121,7 @@
unsigned long blk_end = start + min(end - start, 4096UL);
while (start < blk_end) {
- cache_wait(base + L2X0_CLEAN_LINE_PA, 1);
- writel(start, base + L2X0_CLEAN_LINE_PA);
+ l2x0_clean_line(start);
start += CACHE_LINE_SIZE;
}
@@ -129,8 +146,7 @@
unsigned long blk_end = start + min(end - start, 4096UL);
while (start < blk_end) {
- cache_wait(base + L2X0_CLEAN_INV_LINE_PA, 1);
- writel(start, base + L2X0_CLEAN_INV_LINE_PA);
+ l2x0_flush_line(start);
start += CACHE_LINE_SIZE;
}