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authorThomas Gleixner <tglx@linutronix.de>2010-02-17 20:27:37 +0300
committerThomas Gleixner <tglx@linutronix.de>2010-02-17 20:28:05 +0300
commitb7e56edba4b02f2079042c326a8cd72a44635817 (patch)
treeb5042002e9747cd8fb1278d61f86d8b92a74c018 /arch/x86/mm/ioremap.c
parent13ca0fcaa33f6b1984c4111b6ec5df42689fea6f (diff)
parentb0483e78e5c4c9871fc5541875b3bc006846d46b (diff)
downloadlinux-b7e56edba4b02f2079042c326a8cd72a44635817.tar.xz
Merge branch 'linus' into x86/mm
x86/mm is on 32-rc4 and missing the spinlock namespace changes which are needed for further commits into this topic. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/mm/ioremap.c')
-rw-r--r--arch/x86/mm/ioremap.c50
1 files changed, 12 insertions, 38 deletions
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index 1bf9e08ed733..e404ffe30210 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -133,8 +133,7 @@ static void __iomem *__ioremap_caller(resource_size_t phys_addr,
(unsigned long long)phys_addr,
(unsigned long long)(phys_addr + size),
prot_val, new_prot_val);
- free_memtype(phys_addr, phys_addr + size);
- return NULL;
+ goto err_free_memtype;
}
prot_val = new_prot_val;
}
@@ -160,26 +159,25 @@ static void __iomem *__ioremap_caller(resource_size_t phys_addr,
*/
area = get_vm_area_caller(size, VM_IOREMAP, caller);
if (!area)
- return NULL;
+ goto err_free_memtype;
area->phys_addr = phys_addr;
vaddr = (unsigned long) area->addr;
- if (kernel_map_sync_memtype(phys_addr, size, prot_val)) {
- free_memtype(phys_addr, phys_addr + size);
- free_vm_area(area);
- return NULL;
- }
+ if (kernel_map_sync_memtype(phys_addr, size, prot_val))
+ goto err_free_area;
- if (ioremap_page_range(vaddr, vaddr + size, phys_addr, prot)) {
- free_memtype(phys_addr, phys_addr + size);
- free_vm_area(area);
- return NULL;
- }
+ if (ioremap_page_range(vaddr, vaddr + size, phys_addr, prot))
+ goto err_free_area;
ret_addr = (void __iomem *) (vaddr + offset);
mmiotrace_ioremap(unaligned_phys_addr, unaligned_size, ret_addr);
return ret_addr;
+err_free_area:
+ free_vm_area(area);
+err_free_memtype:
+ free_memtype(phys_addr, phys_addr + size);
+ return NULL;
}
/**
@@ -246,30 +244,6 @@ void __iomem *ioremap_cache(resource_size_t phys_addr, unsigned long size)
}
EXPORT_SYMBOL(ioremap_cache);
-static void __iomem *ioremap_default(resource_size_t phys_addr,
- unsigned long size)
-{
- unsigned long flags;
- void __iomem *ret;
- int err;
-
- /*
- * - WB for WB-able memory and no other conflicting mappings
- * - UC_MINUS for non-WB-able memory with no other conflicting mappings
- * - Inherit from confliting mappings otherwise
- */
- err = reserve_memtype(phys_addr, phys_addr + size,
- _PAGE_CACHE_WB, &flags);
- if (err < 0)
- return NULL;
-
- ret = __ioremap_caller(phys_addr, size, flags,
- __builtin_return_address(0));
-
- free_memtype(phys_addr, phys_addr + size);
- return ret;
-}
-
void __iomem *ioremap_prot(resource_size_t phys_addr, unsigned long size,
unsigned long prot_val)
{
@@ -345,7 +319,7 @@ void *xlate_dev_mem_ptr(unsigned long phys)
if (page_is_ram(start >> PAGE_SHIFT))
return __va(phys);
- addr = (void __force *)ioremap_default(start, PAGE_SIZE);
+ addr = (void __force *)ioremap_cache(start, PAGE_SIZE);
if (addr)
addr = (void *)((unsigned long)addr | (phys & ~PAGE_MASK));