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Subject[RFC PATCH 1/2] mips: add <asm-generic/io.h> including
Date
With the adding, some default ioremap_xx methods defined in
asm-generic/io.h can be used. E.g the default ioremap_uc() returning
NULL.

Signed-off-by: Baoquan He <bhe@redhat.com>

Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: linux-mips@vger.kernel.org

---
arch/mips/include/asm/io.h | 46 ++++++++++++++++++++++++++++++++++
arch/mips/include/asm/mmiowb.h | 2 --
2 files changed, 46 insertions(+), 2 deletions(-)

diff --git a/arch/mips/include/asm/io.h b/arch/mips/include/asm/io.h
index e6d5ccaa309e..c89804a5802a 100644
--- a/arch/mips/include/asm/io.h
+++ b/arch/mips/include/asm/io.h
@@ -129,6 +129,7 @@ static inline phys_addr_t virt_to_phys(const volatile void *x)
* almost all conceivable cases a device driver should not be using
* this function
*/
+#define phys_to_virt phys_to_virt
static inline void * phys_to_virt(unsigned long address)
{
return __va(address);
@@ -481,14 +482,17 @@ BUILDSTRING(l, u32)
BUILDSTRING(q, u64)
#endif

+#define memset_io memset_io
static inline void memset_io(volatile void __iomem *addr, unsigned char val, int count)
{
memset((void __force *) addr, val, count);
}
+#define memcpy_fromio memcpy_fromio
static inline void memcpy_fromio(void *dst, const volatile void __iomem *src, int count)
{
memcpy(dst, (void __force *) src, count);
}
+#define memcpy_toio memcpy_toio
static inline void memcpy_toio(volatile void __iomem *dst, const void *src, int count)
{
memcpy((void __force *) dst, src, count);
@@ -549,6 +553,46 @@ extern void (*_dma_cache_inv)(unsigned long start, unsigned long size);
#define csr_out32(v, a) (*(volatile u32 *)((unsigned long)(a) + __CSR_32_ADJUST) = (v))
#define csr_in32(a) (*(volatile u32 *)((unsigned long)(a) + __CSR_32_ADJUST))

+
+#define inb_p inb_p
+#define inw_p inw_p
+#define inl_p inl_p
+#define insb insb
+#define insw insw
+#define insl insl
+
+#define outb_p outb_p
+#define outw_p outw_p
+#define outl_p outl_p
+#define outsb outsb
+#define outsw outsw
+#define outsl outsl
+
+#define readb readb
+#define readw readw
+#define readl readl
+#define writeb writeb
+#define writew writew
+#define writel writel
+
+#define readsb readsb
+#define readsw readsw
+#define readsl readsl
+#define readsq readsq
+#define writesb writesb
+#define writesw writesw
+#define writesl writesl
+#define writesq writesq
+
+#define __raw_readb __raw_readb
+#define __raw_readw __raw_readw
+#define __raw_readl __raw_readl
+#define __raw_readq __raw_readq
+#define __raw_writeb __raw_writeb
+#define __raw_writew __raw_writew
+#define __raw_writel __raw_writel
+#define __raw_writeq __raw_writeq
+
/*
* Convert a physical pointer to a virtual kernel pointer for /dev/mem
* access
@@ -557,4 +601,6 @@ extern void (*_dma_cache_inv)(unsigned long start, unsigned long size);

void __ioread64_copy(void *to, const void __iomem *from, size_t count);

+#include <asm-generic/io.h>
+
#endif /* _ASM_IO_H */
diff --git a/arch/mips/include/asm/mmiowb.h b/arch/mips/include/asm/mmiowb.h
index a40824e3ef8e..007fe55bc7d1 100644
--- a/arch/mips/include/asm/mmiowb.h
+++ b/arch/mips/include/asm/mmiowb.h
@@ -2,8 +2,6 @@
#ifndef _ASM_MMIOWB_H
#define _ASM_MMIOWB_H

-#include <asm/io.h>
-
#define mmiowb() iobarrier_w()

#include <asm-generic/mmiowb.h>
--
2.34.1
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