Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-23 04:31:50 +00:00
Code Issues Packages Projects Releases Wiki Activity

powerpc: Convert native_tlbie_lock to raw_spinlock

Browse Source 
native_tlbie_lock needs to be a real spinlock in RT. Convert it to
raw_spinlock.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Thomas Gleixner 2010-02-18 02:22:35 +00:00 committed by Benjamin Herrenschmidt
parent 5181e7909b
commit 6b9c9b8a66
1 changed files with 7 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
arch/powerpc/mm/hash_native_64.c
View File

@ -37,7 +37,7 @@
#define HPTE_LOCK_BIT 3
static DEFINE_SPINLOCK(native_tlbie_lock);
static DEFINE_RAW_SPINLOCK(native_tlbie_lock);
static inline void __tlbie(unsigned long va, int psize, int ssize)
{
@ -104,7 +104,7 @@ static inline void tlbie(unsigned long va, int psize, int ssize, int local)
if (use_local)
use_local = mmu_psize_defs[psize].tlbiel;
if (lock_tlbie && !use_local)
spin_lock(&native_tlbie_lock);
raw_spin_lock(&native_tlbie_lock);
asm volatile("ptesync": : :"memory");
if (use_local) {
__tlbiel(va, psize, ssize);
@ -114,7 +114,7 @@ static inline void tlbie(unsigned long va, int psize, int ssize, int local)
asm volatile("eieio; tlbsync; ptesync": : :"memory");
}
if (lock_tlbie && !use_local)
spin_unlock(&native_tlbie_lock);
raw_spin_unlock(&native_tlbie_lock);
}
static inline void native_lock_hpte(struct hash_pte *hptep)
@ -433,7 +433,7 @@ static void native_hpte_clear(void)
/* we take the tlbie lock and hold it. Some hardware will
* deadlock if we try to tlbie from two processors at once.
*/
spin_lock(&native_tlbie_lock);
raw_spin_lock(&native_tlbie_lock);
slots = pteg_count * HPTES_PER_GROUP;
@ -457,7 +457,7 @@ static void native_hpte_clear(void)
}
asm volatile("eieio; tlbsync; ptesync":::"memory");
spin_unlock(&native_tlbie_lock);
raw_spin_unlock(&native_tlbie_lock);
local_irq_restore(flags);
}
@ -520,7 +520,7 @@ static void native_flush_hash_range(unsigned long number, int local)
int lock_tlbie = !cpu_has_feature(CPU_FTR_LOCKLESS_TLBIE);
if (lock_tlbie)
spin_lock(&native_tlbie_lock);
raw_spin_lock(&native_tlbie_lock);
asm volatile("ptesync":::"memory");
for (i = 0; i < number; i++) {
@ -535,7 +535,7 @@ static void native_flush_hash_range(unsigned long number, int local)
asm volatile("eieio; tlbsync; ptesync":::"memory");
if (lock_tlbie)
spin_unlock(&native_tlbie_lock);
raw_spin_unlock(&native_tlbie_lock);
}
local_irq_restore(flags);