Commit 04d472dc authored by Grant Grundler's avatar Grant Grundler Committed by Kyle McMartin

[PARISC] Move pa_tlb_lock to tlb_flush.h

move pa_tlb_lock and it's primary consumers to tlb_flush.h
Future step will be to move spinlock_t definition out of system.h.
Signed-off-by: default avatarGrant Grundler <grundler@parisc-linux.org>
Signed-off-by: default avatarKyle McMartin <kyle@parisc-linux.org>
parent 896a3756
...@@ -164,25 +164,6 @@ static inline void set_eiem(unsigned long val) ...@@ -164,25 +164,6 @@ static inline void set_eiem(unsigned long val)
#endif #endif
#define KERNEL_START (0x10100000 - 0x1000) #define KERNEL_START (0x10100000 - 0x1000)
/* This is for the serialisation of PxTLB broadcasts. At least on the
* N class systems, only one PxTLB inter processor broadcast can be
* active at any one time on the Merced bus. This tlb purge
* synchronisation is fairly lightweight and harmless so we activate
* it on all SMP systems not just the N class. */
#ifdef CONFIG_SMP
extern spinlock_t pa_tlb_lock;
#define purge_tlb_start(x) spin_lock(&pa_tlb_lock)
#define purge_tlb_end(x) spin_unlock(&pa_tlb_lock)
#else
#define purge_tlb_start(x) do { } while(0)
#define purge_tlb_end(x) do { } while (0)
#endif
#define arch_align_stack(x) (x) #define arch_align_stack(x) (x)
#endif #endif
...@@ -7,6 +7,26 @@ ...@@ -7,6 +7,26 @@
#include <linux/mm.h> #include <linux/mm.h>
#include <asm/mmu_context.h> #include <asm/mmu_context.h>
/* This is for the serialisation of PxTLB broadcasts. At least on the
* N class systems, only one PxTLB inter processor broadcast can be
* active at any one time on the Merced bus. This tlb purge
* synchronisation is fairly lightweight and harmless so we activate
* it on all SMP systems not just the N class. */
#ifdef CONFIG_SMP
extern spinlock_t pa_tlb_lock;
#define purge_tlb_start(x) spin_lock(&pa_tlb_lock)
#define purge_tlb_end(x) spin_unlock(&pa_tlb_lock)
#else
#define purge_tlb_start(x) do { } while(0)
#define purge_tlb_end(x) do { } while (0)
#endif
extern void flush_tlb_all(void); extern void flush_tlb_all(void);
/* /*
......
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