Commit dd63fdcc authored by Ingo Molnar's avatar Ingo Molnar

x86: unify kmap_atomic_pfn() and iomap_atomic_prot_pfn(), fix

Impact: build fix

Move kmap_atomic_prot_pfn() to iomap_32.c. It is used on all 32-bit
kernels, while highmem_32.c is only built on highmem kernels.

( Note: the debug_kmap_atomic_prot() check is removed for now, that
  problem is handled via another patch. )
Reported-by: default avatarThomas Gleixner <tglx@linutronix.de>
Cc: Akinobu Mita <akinobu.mita@gmail.com>
LKML-Reference: <20090311143317.GA22244@localhost.localdomain>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 12074fa1
......@@ -121,24 +121,8 @@ void kunmap_atomic(void *kvaddr, enum km_type type)
pagefault_enable();
}
void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot)
{
enum fixed_addresses idx;
unsigned long vaddr;
pagefault_disable();
debug_kmap_atomic_prot(type);
idx = type + KM_TYPE_NR * smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
set_pte(kmap_pte - idx, pfn_pte(pfn, prot));
arch_flush_lazy_mmu_mode();
return (void*) vaddr;
}
/* This is the same as kmap_atomic() but can map memory that doesn't
/*
* This is the same as kmap_atomic() but can map memory that doesn't
* have a struct page associated with it.
*/
void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
......
......@@ -32,7 +32,23 @@ int is_io_mapping_possible(resource_size_t base, unsigned long size)
}
EXPORT_SYMBOL_GPL(is_io_mapping_possible);
/* Map 'pfn' using fixed map 'type' and protections 'prot'
void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot)
{
enum fixed_addresses idx;
unsigned long vaddr;
pagefault_disable();
idx = type + KM_TYPE_NR * smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
set_pte(kmap_pte - idx, pfn_pte(pfn, prot));
arch_flush_lazy_mmu_mode();
return (void *)vaddr;
}
/*
* Map 'pfn' using fixed map 'type' and protections 'prot'
*/
void *
iomap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot)
......
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