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| author | Alistair Popple <alistair@popple.id.au> | 2015-12-17 05:43:12 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2015-12-17 14:40:59 +0300 |
| commit | a84bf321401ab206baafbbfd3bfad485a1a2c3b4 (patch) | |
| tree | e040c03ca8dfcc24d365120f56977ab002e748ed /arch/powerpc/include/asm/io.h | |
| parent | 94973b24d61b03f99017f836d85e7d6739741bab (diff) | |
| download | linux-a84bf321401ab206baafbbfd3bfad485a1a2c3b4.tar.xz | |
powerpc: Add __raw_rm_writeq() function
Move __raw_rm_writeq() from platforms/powernv/pci-ioda.c to
include/asm/io.h so that it can be used by other code.
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/io.h')
| -rw-r--r-- | arch/powerpc/include/asm/io.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/io.h b/arch/powerpc/include/asm/io.h index 5879fde56f3c..6c1297ec374c 100644 --- a/arch/powerpc/include/asm/io.h +++ b/arch/powerpc/include/asm/io.h @@ -385,6 +385,17 @@ static inline void __raw_writeq(unsigned long v, volatile void __iomem *addr) { *(volatile unsigned long __force *)PCI_FIX_ADDR(addr) = v; } + +/* + * Real mode version of the above. stdcix is only supposed to be used + * in hypervisor real mode as per the architecture spec. + */ +static inline void __raw_rm_writeq(u64 val, volatile void __iomem *paddr) +{ + __asm__ __volatile__("stdcix %0,0,%1" + : : "r" (val), "r" (paddr) : "memory"); +} + #endif /* __powerpc64__ */ /* |