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alpha: Fix fallout from locking changes
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spin_* functions are mostly static inline now. That causes the alpha
compile to fail:

CC      arch/alpha/kernel/sys_sable.o
cc1: warnings being treated as errors
In file included from arch/alpha/kernel/sys_sable.c:25:
arch/alpha/include/asm/core_t2.h: In function 't2_readb':
arch/alpha/include/asm/core_t2.h:451: error: 'spinlock_check' is static but \
	used in inline function 't2_readb' which is not static
arch/alpha/include/asm/core_t2.h:456: error: 'spin_unlock_irqrestore' is \
	static but used in inline function 't2_readb' which is not static

That's caused by the "extern inline" magic which is used for the
subarch specific read/write[bwl] functions. I tried to distangle the
uncountable macro onion layers, but failed miserably.

Last resort solution: switch the t2_hae_lock to raw_spinlock_t so the
lock functions are pure macros and function calls again.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Richard Henderson <rth@twiddle.net>
Cc: linux-alpha@vger.kernel.org
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Thomas Gleixner committed Dec 14, 2009
1 parent c2f21ce commit 5f6384c
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Showing 2 changed files with 18 additions and 18 deletions.
34 changes: 17 additions & 17 deletions arch/alpha/include/asm/core_t2.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -435,7 +435,7 @@ extern inline void t2_outl(u32 b, unsigned long addr)
set_hae(msb); \
}

extern spinlock_t t2_hae_lock;
extern raw_spinlock_t t2_hae_lock;

/*
* NOTE: take T2_DENSE_MEM off in each readX/writeX routine, since
Expand All @@ -448,12 +448,12 @@ __EXTERN_INLINE u8 t2_readb(const volatile void __iomem *xaddr)
unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
unsigned long result, msb;
unsigned long flags;
spin_lock_irqsave(&t2_hae_lock, flags);
raw_spin_lock_irqsave(&t2_hae_lock, flags);

t2_set_hae;

result = *(vip) ((addr << 5) + T2_SPARSE_MEM + 0x00);
spin_unlock_irqrestore(&t2_hae_lock, flags);
raw_spin_unlock_irqrestore(&t2_hae_lock, flags);
return __kernel_extbl(result, addr & 3);
}

Expand All @@ -462,12 +462,12 @@ __EXTERN_INLINE u16 t2_readw(const volatile void __iomem *xaddr)
unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
unsigned long result, msb;
unsigned long flags;
spin_lock_irqsave(&t2_hae_lock, flags);
raw_spin_lock_irqsave(&t2_hae_lock, flags);

t2_set_hae;

result = *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x08);
spin_unlock_irqrestore(&t2_hae_lock, flags);
raw_spin_unlock_irqrestore(&t2_hae_lock, flags);
return __kernel_extwl(result, addr & 3);
}

Expand All @@ -480,12 +480,12 @@ __EXTERN_INLINE u32 t2_readl(const volatile void __iomem *xaddr)
unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
unsigned long result, msb;
unsigned long flags;
spin_lock_irqsave(&t2_hae_lock, flags);
raw_spin_lock_irqsave(&t2_hae_lock, flags);

t2_set_hae;

result = *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x18);
spin_unlock_irqrestore(&t2_hae_lock, flags);
raw_spin_unlock_irqrestore(&t2_hae_lock, flags);
return result & 0xffffffffUL;
}

Expand All @@ -494,14 +494,14 @@ __EXTERN_INLINE u64 t2_readq(const volatile void __iomem *xaddr)
unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
unsigned long r0, r1, work, msb;
unsigned long flags;
spin_lock_irqsave(&t2_hae_lock, flags);
raw_spin_lock_irqsave(&t2_hae_lock, flags);

t2_set_hae;

work = (addr << 5) + T2_SPARSE_MEM + 0x18;
r0 = *(vuip)(work);
r1 = *(vuip)(work + (4 << 5));
spin_unlock_irqrestore(&t2_hae_lock, flags);
raw_spin_unlock_irqrestore(&t2_hae_lock, flags);
return r1 << 32 | r0;
}

Expand All @@ -510,27 +510,27 @@ __EXTERN_INLINE void t2_writeb(u8 b, volatile void __iomem *xaddr)
unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
unsigned long msb, w;
unsigned long flags;
spin_lock_irqsave(&t2_hae_lock, flags);
raw_spin_lock_irqsave(&t2_hae_lock, flags);

t2_set_hae;

w = __kernel_insbl(b, addr & 3);
*(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x00) = w;
spin_unlock_irqrestore(&t2_hae_lock, flags);
raw_spin_unlock_irqrestore(&t2_hae_lock, flags);
}

__EXTERN_INLINE void t2_writew(u16 b, volatile void __iomem *xaddr)
{
unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
unsigned long msb, w;
unsigned long flags;
spin_lock_irqsave(&t2_hae_lock, flags);
raw_spin_lock_irqsave(&t2_hae_lock, flags);

t2_set_hae;

w = __kernel_inswl(b, addr & 3);
*(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x08) = w;
spin_unlock_irqrestore(&t2_hae_lock, flags);
raw_spin_unlock_irqrestore(&t2_hae_lock, flags);
}

/*
Expand All @@ -542,27 +542,27 @@ __EXTERN_INLINE void t2_writel(u32 b, volatile void __iomem *xaddr)
unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
unsigned long msb;
unsigned long flags;
spin_lock_irqsave(&t2_hae_lock, flags);
raw_spin_lock_irqsave(&t2_hae_lock, flags);

t2_set_hae;

*(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x18) = b;
spin_unlock_irqrestore(&t2_hae_lock, flags);
raw_spin_unlock_irqrestore(&t2_hae_lock, flags);
}

__EXTERN_INLINE void t2_writeq(u64 b, volatile void __iomem *xaddr)
{
unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
unsigned long msb, work;
unsigned long flags;
spin_lock_irqsave(&t2_hae_lock, flags);
raw_spin_lock_irqsave(&t2_hae_lock, flags);

t2_set_hae;

work = (addr << 5) + T2_SPARSE_MEM + 0x18;
*(vuip)work = b;
*(vuip)(work + (4 << 5)) = b >> 32;
spin_unlock_irqrestore(&t2_hae_lock, flags);
raw_spin_unlock_irqrestore(&t2_hae_lock, flags);
}

__EXTERN_INLINE void __iomem *t2_ioportmap(unsigned long addr)
Expand Down
2 changes: 1 addition & 1 deletion arch/alpha/kernel/core_t2.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -74,7 +74,7 @@
# define DBG(args)
#endif

DEFINE_SPINLOCK(t2_hae_lock);
DEFINE_RAW_SPINLOCK(t2_hae_lock);

static volatile unsigned int t2_mcheck_any_expected;
static volatile unsigned int t2_mcheck_last_taken;
Expand Down

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