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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2014-03-15 17:47:50 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2014-05-30 01:47:34 +0200 |
| commit | 37abcdb9194001a0c6ccc5508cd84ea8bd92c29c (patch) | |
| tree | 2851190136172f7e60d4aaa02410a000895ac6a8 /arch/arm | |
| parent | ARM: l2c: provide generic function for calling set_debug method (diff) | |
| download | linux-37abcdb9194001a0c6ccc5508cd84ea8bd92c29c.tar.xz linux-37abcdb9194001a0c6ccc5508cd84ea8bd92c29c.zip | |
ARM: l2c: split out cache unlock code
Split the cache unlock code out of l2x0_unlock(). We want to be able
to re-use this functionality later.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mm/cache-l2x0.c | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c index 595c50519e41..a1313d20f205 100644 --- a/arch/arm/mm/cache-l2x0.c +++ b/arch/arm/mm/cache-l2x0.c @@ -50,6 +50,9 @@ struct l2x0_regs l2x0_saved_regs; static bool of_init = false; +/* + * Common code for all cache controllers. + */ static inline void cache_wait_way(void __iomem *reg, unsigned long mask) { /* wait for cache operation by line or way to complete */ @@ -67,6 +70,18 @@ static inline void l2c_set_debug(void __iomem *base, unsigned long val) outer_cache.set_debug(val); } +static inline void l2c_unlock(void __iomem *base, unsigned num) +{ + unsigned i; + + for (i = 0; i < num; i++) { + writel_relaxed(0, base + L2X0_LOCKDOWN_WAY_D_BASE + + i * L2X0_LOCKDOWN_STRIDE); + writel_relaxed(0, base + L2X0_LOCKDOWN_WAY_I_BASE + + i * L2X0_LOCKDOWN_STRIDE); + } +} + #ifdef CONFIG_CACHE_PL310 static inline void cache_wait(void __iomem *reg, unsigned long mask) { @@ -308,7 +323,6 @@ static void l2x0_disable(void) static void l2x0_unlock(u32 cache_id) { int lockregs; - int i; switch (cache_id & L2X0_CACHE_ID_PART_MASK) { case L2X0_CACHE_ID_PART_L310: @@ -323,12 +337,7 @@ static void l2x0_unlock(u32 cache_id) break; } - for (i = 0; i < lockregs; i++) { - writel_relaxed(0x0, l2x0_base + L2X0_LOCKDOWN_WAY_D_BASE + - i * L2X0_LOCKDOWN_STRIDE); - writel_relaxed(0x0, l2x0_base + L2X0_LOCKDOWN_WAY_I_BASE + - i * L2X0_LOCKDOWN_STRIDE); - } + l2c_unlock(l2x0_base, lockregs); } void __init l2x0_init(void __iomem *base, u32 aux_val, u32 aux_mask) |