diff options
| author | Sinan Kaya <okaya@codeaurora.org> | 2018-04-05 15:09:12 +0200 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2018-04-06 12:02:04 +0200 |
| commit | a7851aa54c0cdd2f62457b72aee0da5d5586e514 (patch) | |
| tree | 0fccafba788a172ee6b65f9e5fc49eb5551538a9 /include/asm-generic | |
| parent | io: define stronger ordering for the default writeX() implementation (diff) | |
| download | linux-a7851aa54c0cdd2f62457b72aee0da5d5586e514.tar.xz linux-a7851aa54c0cdd2f62457b72aee0da5d5586e514.zip | |
io: change outX() to have their own IO barrier overrides
Open code writeX() inside outX() so that outX() variants have their own
overrideable Port IO barrier combinations as __io_pbw() and __io_paw() for
actions to be taken before port IO and after port IO write.
Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'include/asm-generic')
| -rw-r--r-- | include/asm-generic/io.h | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h index 964725e4f459..53226d907c45 100644 --- a/include/asm-generic/io.h +++ b/include/asm-generic/io.h @@ -457,7 +457,9 @@ static inline u32 inl(unsigned long addr) #define outb outb static inline void outb(u8 value, unsigned long addr) { - writeb(value, PCI_IOBASE + addr); + __io_pbw(); + __raw_writeb(value, PCI_IOBASE + addr); + __io_paw(); } #endif @@ -465,7 +467,9 @@ static inline void outb(u8 value, unsigned long addr) #define outw outw static inline void outw(u16 value, unsigned long addr) { - writew(value, PCI_IOBASE + addr); + __io_pbw(); + __raw_writew(cpu_to_le16(value), PCI_IOBASE + addr); + __io_paw(); } #endif @@ -473,7 +477,9 @@ static inline void outw(u16 value, unsigned long addr) #define outl outl static inline void outl(u32 value, unsigned long addr) { - writel(value, PCI_IOBASE + addr); + __io_pbw(); + __raw_writel(cpu_to_le32(value), PCI_IOBASE + addr); + __io_paw(); } #endif |