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authorRussell King <rmk+kernel@arm.linux.org.uk>2013-02-20 15:35:58 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2013-02-20 15:35:58 +0100
commit1b1c7409b75a8b62906b78b84c8469002072b738 (patch)
tree91ceea4d8fae61b29e9a716c5e6ad56c3b5f588b /arch/arm/mm/mmu.c
parentMerge branches 'fixes' and 'mmci' into for-linus (diff)
parentARM: add SCHED_HRTICK config option (diff)
downloadlinux-1b1c7409b75a8b62906b78b84c8469002072b738.tar.xz
linux-1b1c7409b75a8b62906b78b84c8469002072b738.zip
Merge branch 'misc' into for-linus
Conflicts: arch/arm/include/asm/memory.h
Diffstat (limited to 'arch/arm/mm/mmu.c')
-rw-r--r--arch/arm/mm/mmu.c36
1 files changed, 17 insertions, 19 deletions
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index ce328c7f5c94..69bb735474fe 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -757,21 +757,24 @@ void __init iotable_init(struct map_desc *io_desc, int nr)
{
struct map_desc *md;
struct vm_struct *vm;
+ struct static_vm *svm;
if (!nr)
return;
- vm = early_alloc_aligned(sizeof(*vm) * nr, __alignof__(*vm));
+ svm = early_alloc_aligned(sizeof(*svm) * nr, __alignof__(*svm));
for (md = io_desc; nr; md++, nr--) {
create_mapping(md);
+
+ vm = &svm->vm;
vm->addr = (void *)(md->virtual & PAGE_MASK);
vm->size = PAGE_ALIGN(md->length + (md->virtual & ~PAGE_MASK));
vm->phys_addr = __pfn_to_phys(md->pfn);
vm->flags = VM_IOREMAP | VM_ARM_STATIC_MAPPING;
vm->flags |= VM_ARM_MTYPE(md->type);
vm->caller = iotable_init;
- vm_area_add_early(vm++);
+ add_static_vm_early(svm++);
}
}
@@ -779,13 +782,16 @@ void __init vm_reserve_area_early(unsigned long addr, unsigned long size,
void *caller)
{
struct vm_struct *vm;
+ struct static_vm *svm;
+
+ svm = early_alloc_aligned(sizeof(*svm), __alignof__(*svm));
- vm = early_alloc_aligned(sizeof(*vm), __alignof__(*vm));
+ vm = &svm->vm;
vm->addr = (void *)addr;
vm->size = size;
vm->flags = VM_IOREMAP | VM_ARM_EMPTY_MAPPING;
vm->caller = caller;
- vm_area_add_early(vm);
+ add_static_vm_early(svm);
}
#ifndef CONFIG_ARM_LPAE
@@ -810,14 +816,13 @@ static void __init pmd_empty_section_gap(unsigned long addr)
static void __init fill_pmd_gaps(void)
{
+ struct static_vm *svm;
struct vm_struct *vm;
unsigned long addr, next = 0;
pmd_t *pmd;
- /* we're still single threaded hence no lock needed here */
- for (vm = vmlist; vm; vm = vm->next) {
- if (!(vm->flags & (VM_ARM_STATIC_MAPPING | VM_ARM_EMPTY_MAPPING)))
- continue;
+ list_for_each_entry(svm, &static_vmlist, list) {
+ vm = &svm->vm;
addr = (unsigned long)vm->addr;
if (addr < next)
continue;
@@ -857,19 +862,12 @@ static void __init fill_pmd_gaps(void)
#if defined(CONFIG_PCI) && !defined(CONFIG_NEED_MACH_IO_H)
static void __init pci_reserve_io(void)
{
- struct vm_struct *vm;
- unsigned long addr;
+ struct static_vm *svm;
- /* we're still single threaded hence no lock needed here */
- for (vm = vmlist; vm; vm = vm->next) {
- if (!(vm->flags & VM_ARM_STATIC_MAPPING))
- continue;
- addr = (unsigned long)vm->addr;
- addr &= ~(SZ_2M - 1);
- if (addr == PCI_IO_VIRT_BASE)
- return;
+ svm = find_static_vm_vaddr((void *)PCI_IO_VIRT_BASE);
+ if (svm)
+ return;
- }
vm_reserve_area_early(PCI_IO_VIRT_BASE, SZ_2M, pci_reserve_io);
}
#else