diff options
Diffstat (limited to 'arch/powerpc/include/asm')
| -rw-r--r-- | arch/powerpc/include/asm/device.h | 11 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/dma-mapping.h | 27 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/iommu.h | 10 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/pmc.h | 2 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/pte-40x.h | 1 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/pte-8xx.h | 1 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/pte-common.h | 5 |
7 files changed, 47 insertions, 10 deletions
diff --git a/arch/powerpc/include/asm/device.h b/arch/powerpc/include/asm/device.h index 9dade15d1ab4..6d94d27ed850 100644 --- a/arch/powerpc/include/asm/device.h +++ b/arch/powerpc/include/asm/device.h @@ -15,7 +15,16 @@ struct dev_archdata { /* DMA operations on that device */ struct dma_map_ops *dma_ops; - void *dma_data; + + /* + * When an iommu is in use, dma_data is used as a ptr to the base of the + * iommu_table. Otherwise, it is a simple numerical offset. + */ + union { + dma_addr_t dma_offset; + void *iommu_table_base; + } dma_data; + #ifdef CONFIG_SWIOTLB dma_addr_t max_direct_dma_addr; #endif diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h index cb2ca41dd526..e281daebddca 100644 --- a/arch/powerpc/include/asm/dma-mapping.h +++ b/arch/powerpc/include/asm/dma-mapping.h @@ -26,7 +26,6 @@ extern void *dma_direct_alloc_coherent(struct device *dev, size_t size, extern void dma_direct_free_coherent(struct device *dev, size_t size, void *vaddr, dma_addr_t dma_handle); -extern unsigned long get_dma_direct_offset(struct device *dev); #ifdef CONFIG_NOT_COHERENT_CACHE /* @@ -90,6 +89,28 @@ static inline void set_dma_ops(struct device *dev, struct dma_map_ops *ops) dev->archdata.dma_ops = ops; } +/* + * get_dma_offset() + * + * Get the dma offset on configurations where the dma address can be determined + * from the physical address by looking at a simple offset. Direct dma and + * swiotlb use this function, but it is typically not used by implementations + * with an iommu. + */ +static inline dma_addr_t get_dma_offset(struct device *dev) +{ + if (dev) + return dev->archdata.dma_data.dma_offset; + + return PCI_DRAM_OFFSET; +} + +static inline void set_dma_offset(struct device *dev, dma_addr_t off) +{ + if (dev) + dev->archdata.dma_data.dma_offset = off; +} + /* this will be removed soon */ #define flush_write_buffers() @@ -181,12 +202,12 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size) static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr) { - return paddr + get_dma_direct_offset(dev); + return paddr + get_dma_offset(dev); } static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr) { - return daddr - get_dma_direct_offset(dev); + return daddr - get_dma_offset(dev); } #define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) diff --git a/arch/powerpc/include/asm/iommu.h b/arch/powerpc/include/asm/iommu.h index 7464c0daddd1..edfc9803ec91 100644 --- a/arch/powerpc/include/asm/iommu.h +++ b/arch/powerpc/include/asm/iommu.h @@ -70,6 +70,16 @@ struct iommu_table { struct scatterlist; +static inline void set_iommu_table_base(struct device *dev, void *base) +{ + dev->archdata.dma_data.iommu_table_base = base; +} + +static inline void *get_iommu_table_base(struct device *dev) +{ + return dev->archdata.dma_data.iommu_table_base; +} + /* Frees table for an individual device node */ extern void iommu_free_table(struct iommu_table *tbl, const char *node_name); diff --git a/arch/powerpc/include/asm/pmc.h b/arch/powerpc/include/asm/pmc.h index ccc68b50d05d..5a9ede4962cb 100644 --- a/arch/powerpc/include/asm/pmc.h +++ b/arch/powerpc/include/asm/pmc.h @@ -29,7 +29,7 @@ int reserve_pmc_hardware(perf_irq_t new_perf_irq); void release_pmc_hardware(void); void ppc_enable_pmcs(void); -#ifdef CONFIG_PPC64 +#ifdef CONFIG_PPC_BOOK3S_64 #include <asm/lppaca.h> static inline void ppc_set_pmu_inuse(int inuse) diff --git a/arch/powerpc/include/asm/pte-40x.h b/arch/powerpc/include/asm/pte-40x.h index 6c3e1f4378d4..ec0b0b0d1df9 100644 --- a/arch/powerpc/include/asm/pte-40x.h +++ b/arch/powerpc/include/asm/pte-40x.h @@ -43,6 +43,7 @@ #define _PAGE_NO_CACHE 0x004 /* I: caching is inhibited */ #define _PAGE_WRITETHRU 0x008 /* W: caching is write-through */ #define _PAGE_USER 0x010 /* matches one of the zone permission bits */ +#define _PAGE_SPECIAL 0x020 /* software: Special page */ #define _PAGE_RW 0x040 /* software: Writes permitted */ #define _PAGE_DIRTY 0x080 /* software: dirty page */ #define _PAGE_HWWRITE 0x100 /* hardware: Dirty & RW, set in exception */ diff --git a/arch/powerpc/include/asm/pte-8xx.h b/arch/powerpc/include/asm/pte-8xx.h index 94e979718dcf..dd5ea95fe61e 100644 --- a/arch/powerpc/include/asm/pte-8xx.h +++ b/arch/powerpc/include/asm/pte-8xx.h @@ -32,6 +32,7 @@ #define _PAGE_FILE 0x0002 /* when !present: nonlinear file mapping */ #define _PAGE_NO_CACHE 0x0002 /* I: cache inhibit */ #define _PAGE_SHARED 0x0004 /* No ASID (context) compare */ +#define _PAGE_SPECIAL 0x0008 /* SW entry, forced to 0 by the TLB miss */ /* These five software bits must be masked out when the entry is loaded * into the TLB. diff --git a/arch/powerpc/include/asm/pte-common.h b/arch/powerpc/include/asm/pte-common.h index c3b65076a263..f2b370180a09 100644 --- a/arch/powerpc/include/asm/pte-common.h +++ b/arch/powerpc/include/asm/pte-common.h @@ -25,9 +25,6 @@ #ifndef _PAGE_WRITETHRU #define _PAGE_WRITETHRU 0 #endif -#ifndef _PAGE_SPECIAL -#define _PAGE_SPECIAL 0 -#endif #ifndef _PAGE_4K_PFN #define _PAGE_4K_PFN 0 #endif @@ -179,7 +176,5 @@ extern unsigned long bad_call_to_PMD_PAGE_SIZE(void); #define HAVE_PAGE_AGP /* Advertise support for _PAGE_SPECIAL */ -#ifdef _PAGE_SPECIAL #define __HAVE_ARCH_PTE_SPECIAL -#endif |