[PATCH v4 2/4] mips: add <asm-generic/io.h> including

From: Baoquan He
Date: Wed Mar 08 2023 - 08:11:47 EST


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@xxxxxxxxxx>
Reviewed-by: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>
Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Cc: Helge Deller <deller@xxxxxx>
Cc: Serge Semin <fancer.lancer@xxxxxxxxx>
Cc: Florian Fainelli <f.fainelli@xxxxxxxxx>
Cc: Huacai Chen <chenhuacai@xxxxxxxxxx>
Cc: Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx>
Cc: linux-mips@xxxxxxxxxxxxxxx
---
arch/mips/include/asm/io.h | 78 ++++++++++++++++++++++++++++++++++----
1 file changed, 70 insertions(+), 8 deletions(-)

diff --git a/arch/mips/include/asm/io.h b/arch/mips/include/asm/io.h
index cec8347f0b85..6756baadba6c 100644
--- a/arch/mips/include/asm/io.h
+++ b/arch/mips/include/asm/io.h
@@ -126,6 +126,7 @@ 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);
@@ -359,6 +360,27 @@ __BUILD_MEMORY_PFX(__raw_, q, u64, 0)
__BUILD_MEMORY_PFX(__mem_, q, u64, 0)
#endif

+#define readb readb
+#define readw readw
+#define readl readl
+#define writeb writeb
+#define writew writew
+#define writel writel
+
+#ifdef CONFIG_64BIT
+#define readq readq
+#define writeq writeq
+#define __raw_readq __raw_readq
+#define __raw_writeq __raw_writeq
+#endif
+
+#define __raw_readb __raw_readb
+#define __raw_readw __raw_readw
+#define __raw_readl __raw_readl
+#define __raw_writeb __raw_writeb
+#define __raw_writew __raw_writew
+#define __raw_writel __raw_writel
+
#define __BUILD_IOPORT_PFX(bus, bwlq, type) \
__BUILD_IOPORT_SINGLE(bus, bwlq, type, 1, 0,) \
__BUILD_IOPORT_SINGLE(bus, bwlq, type, 1, 0, _p)
@@ -374,6 +396,27 @@ BUILDIO_IOPORT(l, u32)
BUILDIO_IOPORT(q, u64)
#endif

+#define inb inb
+#define inw inw
+#define inl inl
+#define inb_p inb_p
+#define inw_p inw_p
+#define inl_p inl_p
+
+#define outb outb
+#define outw outw
+#define outl outl
+#define outb_p outb_p
+#define outw_p outw_p
+#define outl_p outl_p
+
+#ifdef CONFIG_64BIT
+#define inq inq
+#define outq outq
+#define inq_p inq_p
+#define outq_p outq_p
+#endif
+
#define __BUILDIO(bwlq, type) \
\
__BUILD_MEMORY_SINGLE(____raw_, bwlq, type, 1, 0, 0)
@@ -412,14 +455,6 @@ __BUILDIO(q, u64)
#define writeq_be(val, addr) \
__raw_writeq(cpu_to_be64((val)), (__force unsigned *)(addr))

-/*
- * Some code tests for these symbols
- */
-#ifdef CONFIG_64BIT
-#define readq readq
-#define writeq writeq
-#endif
-
#define __BUILD_MEMORY_STRING(bwlq, type) \
\
static inline void writes##bwlq(volatile void __iomem *mem, \
@@ -480,14 +515,39 @@ BUILDSTRING(l, u32)
BUILDSTRING(q, u64)
#endif

+#define insb insb
+#define insw insw
+#define insl insl
+#define outsb outsb
+#define outsw outsw
+#define outsl outsl
+
+#define readsb readsb
+#define readsw readsw
+#define readsl readsl
+#define writesb writesb
+#define writesw writesw
+#define writesl writesl
+
+#ifdef CONFIG_64BIT
+#define insq insq
+#define readsq readsq
+#define readsq readsq
+#define writesq writesq
+#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);
@@ -556,4 +616,6 @@ 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 */
--
2.34.1