diff options
| author | Johannes Berg <johannes@sipsolutions.net> | 2007-05-03 22:28:32 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-05-07 20:31:14 +1000 |
| commit | 7e11580b362fc64693de7ad5c11fbf3d1d9d0e50 (patch) | |
| tree | 8f1c12a24bec21ce5a5912f6b75d58c1ffc1ddd0 /include/asm-powerpc | |
| parent | 55b61fec22caa3e7872caea6c4100fc75cb8f49b (diff) | |
[POWERPC] DART iommu suspend
This implements save and restore hooks for IOMMUs and implements
it the DART iommu.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-powerpc')
| -rw-r--r-- | include/asm-powerpc/iommu.h | 14 | ||||
| -rw-r--r-- | include/asm-powerpc/machdep.h | 5 |
2 files changed, 19 insertions, 0 deletions
diff --git a/include/asm-powerpc/iommu.h b/include/asm-powerpc/iommu.h index b2e56b30306..870967e4720 100644 --- a/include/asm-powerpc/iommu.h +++ b/include/asm-powerpc/iommu.h @@ -26,6 +26,7 @@ #include <linux/spinlock.h> #include <linux/device.h> #include <linux/dma-mapping.h> +#include <asm/machdep.h> #include <asm/types.h> #include <asm/bitops.h> @@ -109,6 +110,19 @@ static inline void pci_iommu_init(void) { } #endif extern void alloc_dart_table(void); +#if defined(CONFIG_PPC64) && defined(CONFIG_PM) +static inline void iommu_save(void) +{ + if (ppc_md.iommu_save) + ppc_md.iommu_save(); +} + +static inline void iommu_restore(void) +{ + if (ppc_md.iommu_restore) + ppc_md.iommu_restore(); +} +#endif #endif /* __KERNEL__ */ #endif /* _ASM_IOMMU_H */ diff --git a/include/asm-powerpc/machdep.h b/include/asm-powerpc/machdep.h index bbd17d0e170..6fdabd6dfb3 100644 --- a/include/asm-powerpc/machdep.h +++ b/include/asm-powerpc/machdep.h @@ -91,6 +91,11 @@ struct machdep_calls { void __iomem * (*ioremap)(phys_addr_t addr, unsigned long size, unsigned long flags); void (*iounmap)(volatile void __iomem *token); + +#ifdef CONFIG_PM + void (*iommu_save)(void); + void (*iommu_restore)(void); +#endif #endif /* CONFIG_PPC64 */ int (*probe)(void); |