aboutsummaryrefslogtreecommitdiff
path: root/arch
diff options
context:
space:
mode:
authorRussell King <rmk@dyn-67.arm.linux.org.uk>2005-06-29 09:40:28 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2005-06-29 09:40:28 +0100
commit99a0616bcdabec9005159e50af91a36cc3f8bda8 (patch)
tree4c5bb08f6b392ffbc8a07d3b1d900971c6776243 /arch
parenta839688362e32f01608838516036697e30618b39 (diff)
parent053a7b5b7617a72d7c61b6f84196d1c0f79b9849 (diff)
Merge with ../linux-2.6-smp
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/kernel/smp.c123
-rw-r--r--arch/arm/mm/init.c2
-rw-r--r--arch/arm/mm/mm-armv.c2
3 files changed, 125 insertions, 2 deletions
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 34892758f09..a931409c8fe 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -502,3 +502,126 @@ int __init setup_profiling_timer(unsigned int multiplier)
{
return -EINVAL;
}
+
+static int
+on_each_cpu_mask(void (*func)(void *), void *info, int retry, int wait,
+ cpumask_t mask)
+{
+ int ret = 0;
+
+ preempt_disable();
+
+ ret = smp_call_function_on_cpu(func, info, retry, wait, mask);
+ if (cpu_isset(smp_processor_id(), mask))
+ func(info);
+
+ preempt_enable();
+
+ return ret;
+}
+
+/**********************************************************************/
+
+/*
+ * TLB operations
+ */
+struct tlb_args {
+ struct vm_area_struct *ta_vma;
+ unsigned long ta_start;
+ unsigned long ta_end;
+};
+
+static inline void ipi_flush_tlb_all(void *ignored)
+{
+ local_flush_tlb_all();
+}
+
+static inline void ipi_flush_tlb_mm(void *arg)
+{
+ struct mm_struct *mm = (struct mm_struct *)arg;
+
+ local_flush_tlb_mm(mm);
+}
+
+static inline void ipi_flush_tlb_page(void *arg)
+{
+ struct tlb_args *ta = (struct tlb_args *)arg;
+
+ local_flush_tlb_page(ta->ta_vma, ta->ta_start);
+}
+
+static inline void ipi_flush_tlb_kernel_page(void *arg)
+{
+ struct tlb_args *ta = (struct tlb_args *)arg;
+
+ local_flush_tlb_kernel_page(ta->ta_start);
+}
+
+static inline void ipi_flush_tlb_range(void *arg)
+{
+ struct tlb_args *ta = (struct tlb_args *)arg;
+
+ local_flush_tlb_range(ta->ta_vma, ta->ta_start, ta->ta_end);
+}
+
+static inline void ipi_flush_tlb_kernel_range(void *arg)
+{
+ struct tlb_args *ta = (struct tlb_args *)arg;
+
+ local_flush_tlb_kernel_range(ta->ta_start, ta->ta_end);
+}
+
+void flush_tlb_all(void)
+{
+ on_each_cpu(ipi_flush_tlb_all, NULL, 1, 1);
+}
+
+void flush_tlb_mm(struct mm_struct *mm)
+{
+ cpumask_t mask = mm->cpu_vm_mask;
+
+ on_each_cpu_mask(ipi_flush_tlb_mm, mm, 1, 1, mask);
+}
+
+void flush_tlb_page(struct vm_area_struct *vma, unsigned long uaddr)
+{
+ cpumask_t mask = vma->vm_mm->cpu_vm_mask;
+ struct tlb_args ta;
+
+ ta.ta_vma = vma;
+ ta.ta_start = uaddr;
+
+ on_each_cpu_mask(ipi_flush_tlb_page, &ta, 1, 1, mask);
+}
+
+void flush_tlb_kernel_page(unsigned long kaddr)
+{
+ struct tlb_args ta;
+
+ ta.ta_start = kaddr;
+
+ on_each_cpu(ipi_flush_tlb_kernel_page, &ta, 1, 1);
+}
+
+void flush_tlb_range(struct vm_area_struct *vma,
+ unsigned long start, unsigned long end)
+{
+ cpumask_t mask = vma->vm_mm->cpu_vm_mask;
+ struct tlb_args ta;
+
+ ta.ta_vma = vma;
+ ta.ta_start = start;
+ ta.ta_end = end;
+
+ on_each_cpu_mask(ipi_flush_tlb_range, &ta, 1, 1, mask);
+}
+
+void flush_tlb_kernel_range(unsigned long start, unsigned long end)
+{
+ struct tlb_args ta;
+
+ ta.ta_start = start;
+ ta.ta_end = end;
+
+ on_each_cpu(ipi_flush_tlb_kernel_range, &ta, 1, 1);
+}
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 6dcb23d64bf..edffa47a4b2 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -437,7 +437,7 @@ void __init paging_init(struct meminfo *mi, struct machine_desc *mdesc)
memtable_init(mi);
if (mdesc->map_io)
mdesc->map_io();
- flush_tlb_all();
+ local_flush_tlb_all();
/*
* initialise the zones within each node
diff --git a/arch/arm/mm/mm-armv.c b/arch/arm/mm/mm-armv.c
index 052ab443ec4..c3bd503b43a 100644
--- a/arch/arm/mm/mm-armv.c
+++ b/arch/arm/mm/mm-armv.c
@@ -682,7 +682,7 @@ void __init memtable_init(struct meminfo *mi)
}
flush_cache_all();
- flush_tlb_all();
+ local_flush_tlb_all();
top_pmd = pmd_off_k(0xffff0000);
}