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ARM: io: convert ioremap*() to functions

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Convert the ioremap*() preprocessor macros to real functions, moving
them out of line.  This allows us to kill off __arm_ioremap(), and
__arm_iounmap() helpers, and remove __arm_ioremap_pfn_caller() from
global view.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2015-07-01 10:06:32 +01:00
parent 1e2c727f6c
commit 20a1080dff
3 changed files with 67 additions and 39 deletions
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24
arch/arm/include/asm/io.h
View file

@ -140,16 +140,11 @@ static inline u32 __raw_readl(const volatile void __iomem *addr)
* The _caller variety takes a __builtin_return_address(0) value for
* /proc/vmalloc to use - and should only be used in non-inline functions.
*/
extern void __iomem *__arm_ioremap_pfn_caller(unsigned long, unsigned long,
size_t, unsigned int, void *);
extern void __iomem *__arm_ioremap_caller(phys_addr_t, size_t, unsigned int,
void *);
extern void __iomem *__arm_ioremap_pfn(unsigned long, unsigned long, size_t, unsigned int);
extern void __iomem *__arm_ioremap(phys_addr_t, size_t, unsigned int);
extern void __iomem *__arm_ioremap_exec(phys_addr_t, size_t, bool cached);
extern void __iounmap(volatile void __iomem *addr);
extern void __arm_iounmap(volatile void __iomem *addr);
extern void __iomem * (*arch_ioremap_caller)(phys_addr_t, size_t,
unsigned int, void *);
@ -390,12 +385,19 @@ static inline void memcpy_toio(volatile void __iomem *to, const void *from,
* Eg, a CPU not implementing read allocate but implementing write allocate
* will provide a write allocate mapping instead.
*/
#define ioremap(cookie,size) __arm_ioremap((cookie), (size), MT_DEVICE)
#define ioremap_nocache(cookie,size) __arm_ioremap((cookie), (size), MT_DEVICE)
#define ioremap_cache(cookie,size) __arm_ioremap((cookie), (size), MT_DEVICE_CACHED)
#define ioremap_wc(cookie,size) __arm_ioremap((cookie), (size), MT_DEVICE_WC)
#define ioremap_wt(cookie,size) __arm_ioremap((cookie), (size), MT_DEVICE_WC)
#define iounmap __arm_iounmap
void __iomem *ioremap(resource_size_t res_cookie, size_t size);
#define ioremap ioremap
#define ioremap_nocache ioremap
void __iomem *ioremap_cache(resource_size_t res_cookie, size_t size);
#define ioremap_cache ioremap_cache
void __iomem *ioremap_wc(resource_size_t res_cookie, size_t size);
#define ioremap_wc ioremap_wc
#define ioremap_wt ioremap_wc
void iounmap(volatile void __iomem *iomem_cookie);
#define iounmap iounmap
/*
* io{read,write}{16,32}be() macros

33
arch/arm/mm/ioremap.c
View file

@ -255,7 +255,7 @@ remap_area_supersections(unsigned long virt, unsigned long pfn,
}
#endif
void __iomem * __arm_ioremap_pfn_caller(unsigned long pfn,
static void __iomem * __arm_ioremap_pfn_caller(unsigned long pfn,
unsigned long offset, size_t size, unsigned int mtype, void *caller)
{
const struct mem_type *type;
@ -363,7 +363,7 @@ __arm_ioremap_pfn(unsigned long pfn, unsigned long offset, size_t size,
unsigned int mtype)
{
return __arm_ioremap_pfn_caller(pfn, offset, size, mtype,
__builtin_return_address(0));
__builtin_return_address(0));
}
EXPORT_SYMBOL(__arm_ioremap_pfn);
@ -371,13 +371,26 @@ void __iomem * (*arch_ioremap_caller)(phys_addr_t, size_t,
unsigned int, void *) =
__arm_ioremap_caller;
void __iomem *
__arm_ioremap(phys_addr_t phys_addr, size_t size, unsigned int mtype)
void __iomem *ioremap(resource_size_t res_cookie, size_t size)
{
return arch_ioremap_caller(phys_addr, size, mtype,
__builtin_return_address(0));
return arch_ioremap_caller(res_cookie, size, MT_DEVICE,
__builtin_return_address(0));
}
EXPORT_SYMBOL(__arm_ioremap);
EXPORT_SYMBOL(ioremap);
void __iomem *ioremap_cache(resource_size_t res_cookie, size_t size)
{
return arch_ioremap_caller(res_cookie, size, MT_DEVICE_CACHED,
__builtin_return_address(0));
}
EXPORT_SYMBOL(ioremap_cache);
void __iomem *ioremap_wc(resource_size_t res_cookie, size_t size)
{
return arch_ioremap_caller(res_cookie, size, MT_DEVICE_WC,
__builtin_return_address(0));
}
EXPORT_SYMBOL(ioremap_wc);
/*
* Remap an arbitrary physical address space into the kernel virtual
@ -431,11 +444,11 @@ void __iounmap(volatile void __iomem *io_addr)
void (*arch_iounmap)(volatile void __iomem *) = __iounmap;
void __arm_iounmap(volatile void __iomem *io_addr)
void iounmap(volatile void __iomem *cookie)
{
arch_iounmap(io_addr);
arch_iounmap(cookie);
}
EXPORT_SYMBOL(__arm_iounmap);
EXPORT_SYMBOL(iounmap);
#ifdef CONFIG_PCI
static int pci_ioremap_mem_type = MT_DEVICE;

49
arch/arm/mm/nommu.c
View file

@ -351,30 +351,43 @@ void __iomem *__arm_ioremap_pfn(unsigned long pfn, unsigned long offset,
}
EXPORT_SYMBOL(__arm_ioremap_pfn);
void __iomem *__arm_ioremap_pfn_caller(unsigned long pfn, unsigned long offset,
size_t size, unsigned int mtype, void *caller)
{
return __arm_ioremap_pfn(pfn, offset, size, mtype);
}
void __iomem *__arm_ioremap(phys_addr_t phys_addr, size_t size,
unsigned int mtype)
{
return (void __iomem *)phys_addr;
}
EXPORT_SYMBOL(__arm_ioremap);
void __iomem * (*arch_ioremap_caller)(phys_addr_t, size_t, unsigned int, void *);
void __iomem *__arm_ioremap_caller(phys_addr_t phys_addr, size_t size,
unsigned int mtype, void *caller)
{
return __arm_ioremap(phys_addr, size, mtype);
return (void __iomem *)phys_addr;
}
void __iomem * (*arch_ioremap_caller)(phys_addr_t, size_t, unsigned int, void *);
void __iomem *ioremap(resource_size_t res_cookie, size_t size)
{
return __arm_ioremap_caller(res_cookie, size, MT_DEVICE,
__builtin_return_address(0));
}
EXPORT_SYMBOL(ioremap);
void __iomem *ioremap_cache(resource_size_t res_cookie, size_t size)
{
return __arm_ioremap_caller(res_cookie, size, MT_DEVICE_CACHED,
__builtin_return_address(0));
}
EXPORT_SYMBOL(ioremap_cache);
void __iomem *ioremap_wc(resource_size_t res_cookie, size_t size)
{
return __arm_ioremap_caller(res_cookie, size, MT_DEVICE_WC,
__builtin_return_address(0));
}
EXPORT_SYMBOL(ioremap_wc);
void __iounmap(volatile void __iomem *addr)
{
}
EXPORT_SYMBOL(__iounmap);
void (*arch_iounmap)(volatile void __iomem *);
void __arm_iounmap(volatile void __iomem *addr)
void iounmap(volatile void __iomem *addr)
{
}
EXPORT_SYMBOL(__arm_iounmap);
EXPORT_SYMBOL(iounmap);