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Commit 37abcdb9 authored by Russell King's avatar Russell King
Browse files

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: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 2b2a87a1

arch/arm/mm/cache-l2x0.c

+16 −7
Original line number Diff line number Diff line
@@ -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)