diff options
-rw-r--r-- | include/asm-parisc/system.h | 19 | ||||
-rw-r--r-- | include/asm-parisc/tlbflush.h | 20 |
2 files changed, 20 insertions, 19 deletions
diff --git a/include/asm-parisc/system.h b/include/asm-parisc/system.h index 26ff844a21c1..a25e9dcd2e79 100644 --- a/include/asm-parisc/system.h +++ b/include/asm-parisc/system.h | |||
@@ -164,25 +164,6 @@ static inline void set_eiem(unsigned long val) | |||
164 | #endif | 164 | #endif |
165 | 165 | ||
166 | #define KERNEL_START (0x10100000 - 0x1000) | 166 | #define KERNEL_START (0x10100000 - 0x1000) |
167 | |||
168 | /* This is for the serialisation of PxTLB broadcasts. At least on the | ||
169 | * N class systems, only one PxTLB inter processor broadcast can be | ||
170 | * active at any one time on the Merced bus. This tlb purge | ||
171 | * synchronisation is fairly lightweight and harmless so we activate | ||
172 | * it on all SMP systems not just the N class. */ | ||
173 | #ifdef CONFIG_SMP | ||
174 | extern spinlock_t pa_tlb_lock; | ||
175 | |||
176 | #define purge_tlb_start(x) spin_lock(&pa_tlb_lock) | ||
177 | #define purge_tlb_end(x) spin_unlock(&pa_tlb_lock) | ||
178 | |||
179 | #else | ||
180 | |||
181 | #define purge_tlb_start(x) do { } while(0) | ||
182 | #define purge_tlb_end(x) do { } while (0) | ||
183 | |||
184 | #endif | ||
185 | |||
186 | #define arch_align_stack(x) (x) | 167 | #define arch_align_stack(x) (x) |
187 | 168 | ||
188 | #endif | 169 | #endif |
diff --git a/include/asm-parisc/tlbflush.h b/include/asm-parisc/tlbflush.h index efbb2d8625b1..84af4ab1fe51 100644 --- a/include/asm-parisc/tlbflush.h +++ b/include/asm-parisc/tlbflush.h | |||
@@ -7,6 +7,26 @@ | |||
7 | #include <linux/mm.h> | 7 | #include <linux/mm.h> |
8 | #include <asm/mmu_context.h> | 8 | #include <asm/mmu_context.h> |
9 | 9 | ||
10 | |||
11 | /* This is for the serialisation of PxTLB broadcasts. At least on the | ||
12 | * N class systems, only one PxTLB inter processor broadcast can be | ||
13 | * active at any one time on the Merced bus. This tlb purge | ||
14 | * synchronisation is fairly lightweight and harmless so we activate | ||
15 | * it on all SMP systems not just the N class. */ | ||
16 | #ifdef CONFIG_SMP | ||
17 | extern spinlock_t pa_tlb_lock; | ||
18 | |||
19 | #define purge_tlb_start(x) spin_lock(&pa_tlb_lock) | ||
20 | #define purge_tlb_end(x) spin_unlock(&pa_tlb_lock) | ||
21 | |||
22 | #else | ||
23 | |||
24 | #define purge_tlb_start(x) do { } while(0) | ||
25 | #define purge_tlb_end(x) do { } while (0) | ||
26 | |||
27 | #endif | ||
28 | |||
29 | |||
10 | extern void flush_tlb_all(void); | 30 | extern void flush_tlb_all(void); |
11 | 31 | ||
12 | /* | 32 | /* |