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authorSantosh Shilimkar <santosh.shilimkar@ti.com>2010-02-04 19:35:06 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-02-15 21:39:54 +0000
commit424d6b145f863d012c540082d0c1afb5bb4dea48 (patch)
treeea82c3c9770a067591e0a0fe3b4743543ebc90f7
parentad187f956108e1c56b444706212bf08d84c0bee0 (diff)
downloadop-kernel-dev-424d6b145f863d012c540082d0c1afb5bb4dea48.zip
op-kernel-dev-424d6b145f863d012c540082d0c1afb5bb4dea48.tar.gz
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>
-rw-r--r--arch/arm/mm/cache-l2x0.c36
1 files changed, 26 insertions, 10 deletions
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 @@ static inline void cache_sync(void)
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 @@ static void l2x0_inv_range(unsigned long start, unsigned long end)
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 @@ static void l2x0_clean_range(unsigned long start, unsigned long end)
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 @@ static void l2x0_flush_range(unsigned long start, unsigned long end)
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;
}
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