diff options
Diffstat (limited to 'arch/sparc')
| -rw-r--r-- | arch/sparc/include/asm/dma-mapping.h | 15 | ||||
| -rw-r--r-- | arch/sparc/kernel/ioport.c | 3 | ||||
| -rw-r--r-- | arch/sparc/kernel/of_device_common.c | 1 | ||||
| -rw-r--r-- | arch/sparc/mm/io-unit.c | 9 | ||||
| -rw-r--r-- | arch/sparc/mm/iommu.c | 15 | ||||
| -rw-r--r-- | arch/sparc/mm/mm_32.h | 3 | ||||
| -rw-r--r-- | arch/sparc/mm/srmmu.c | 4 |
7 files changed, 16 insertions, 34 deletions
diff --git a/arch/sparc/include/asm/dma-mapping.h b/arch/sparc/include/asm/dma-mapping.h index ed32845bd2d2..2f051343612e 100644 --- a/arch/sparc/include/asm/dma-mapping.h +++ b/arch/sparc/include/asm/dma-mapping.h @@ -2,23 +2,12 @@ #ifndef ___ASM_SPARC_DMA_MAPPING_H #define ___ASM_SPARC_DMA_MAPPING_H -#include <asm/cpu_type.h> - extern const struct dma_map_ops *dma_ops; -extern struct bus_type pci_bus_type; - static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) { -#ifdef CONFIG_SPARC_LEON - if (sparc_cpu_model == sparc_leon) - return NULL; -#endif -#if defined(CONFIG_SPARC32) && defined(CONFIG_PCI) - if (bus == &pci_bus_type) - return NULL; -#endif - return dma_ops; + /* sparc32 uses per-device dma_ops */ + return IS_ENABLED(CONFIG_SPARC64) ? dma_ops : NULL; } #endif diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c index e59461d03b9a..d6874c9b639f 100644 --- a/arch/sparc/kernel/ioport.c +++ b/arch/sparc/kernel/ioport.c @@ -373,9 +373,6 @@ void arch_sync_dma_for_cpu(phys_addr_t paddr, size_t size, dma_make_coherent(paddr, PAGE_ALIGN(size)); } -const struct dma_map_ops *dma_ops; -EXPORT_SYMBOL(dma_ops); - #ifdef CONFIG_PROC_FS static int sparc_io_proc_show(struct seq_file *m, void *v) diff --git a/arch/sparc/kernel/of_device_common.c b/arch/sparc/kernel/of_device_common.c index b32cc5610712..e717a56efc5d 100644 --- a/arch/sparc/kernel/of_device_common.c +++ b/arch/sparc/kernel/of_device_common.c @@ -67,6 +67,7 @@ void of_propagate_archdata(struct platform_device *bus) op->dev.archdata.stc = bus_sd->stc; op->dev.archdata.host_controller = bus_sd->host_controller; op->dev.archdata.numa_node = bus_sd->numa_node; + op->dev.dma_ops = bus->dev.dma_ops; if (dp->child) of_propagate_archdata(op); diff --git a/arch/sparc/mm/io-unit.c b/arch/sparc/mm/io-unit.c index 33a0facd9eb5..289276b99b01 100644 --- a/arch/sparc/mm/io-unit.c +++ b/arch/sparc/mm/io-unit.c @@ -38,6 +38,8 @@ #define IOPERM (IOUPTE_CACHE | IOUPTE_WRITE | IOUPTE_VALID) #define MKIOPTE(phys) __iopte((((phys)>>4) & IOUPTE_PAGE) | IOPERM) +static const struct dma_map_ops iounit_dma_ops; + static void __init iounit_iommu_init(struct platform_device *op) { struct iounit_struct *iounit; @@ -70,6 +72,8 @@ static void __init iounit_iommu_init(struct platform_device *op) xptend = iounit->page_table + (16 * PAGE_SIZE) / sizeof(iopte_t); for (; xpt < xptend; xpt++) sbus_writel(0, xpt); + + op->dev.dma_ops = &iounit_dma_ops; } static int __init iounit_init(void) @@ -288,8 +292,3 @@ static const struct dma_map_ops iounit_dma_ops = { .map_sg = iounit_map_sg, .unmap_sg = iounit_unmap_sg, }; - -void __init ld_mmu_iounit(void) -{ - dma_ops = &iounit_dma_ops; -} diff --git a/arch/sparc/mm/iommu.c b/arch/sparc/mm/iommu.c index 4d3c6991f0ae..b00dde13681b 100644 --- a/arch/sparc/mm/iommu.c +++ b/arch/sparc/mm/iommu.c @@ -54,6 +54,9 @@ static pgprot_t dvma_prot; /* Consistent mapping pte flags */ #define IOPERM (IOPTE_CACHE | IOPTE_WRITE | IOPTE_VALID) #define MKIOPTE(pfn, perm) (((((pfn)<<8) & IOPTE_PAGE) | (perm)) & ~IOPTE_WAZ) +static const struct dma_map_ops sbus_iommu_dma_gflush_ops; +static const struct dma_map_ops sbus_iommu_dma_pflush_ops; + static void __init sbus_iommu_init(struct platform_device *op) { struct iommu_struct *iommu; @@ -129,6 +132,11 @@ static void __init sbus_iommu_init(struct platform_device *op) (int)(IOMMU_NPTES*sizeof(iopte_t)), (int)IOMMU_NPTES); op->dev.archdata.iommu = iommu; + + if (flush_page_for_dma_global) + op->dev.dma_ops = &sbus_iommu_dma_gflush_ops; + else + op->dev.dma_ops = &sbus_iommu_dma_pflush_ops; } static int __init iommu_init(void) @@ -445,13 +453,6 @@ static const struct dma_map_ops sbus_iommu_dma_pflush_ops = { void __init ld_mmu_iommu(void) { - if (flush_page_for_dma_global) { - /* flush_page_for_dma flushes everything, no matter of what page is it */ - dma_ops = &sbus_iommu_dma_gflush_ops; - } else { - dma_ops = &sbus_iommu_dma_pflush_ops; - } - if (viking_mxcc_present || srmmu_modtype == HyperSparc) { dvma_prot = __pgprot(SRMMU_CACHE | SRMMU_ET_PTE | SRMMU_PRIV); ioperm_noc = IOPTE_CACHE | IOPTE_WRITE | IOPTE_VALID; diff --git a/arch/sparc/mm/mm_32.h b/arch/sparc/mm/mm_32.h index 0d0b06e952a5..ce750a99eea9 100644 --- a/arch/sparc/mm/mm_32.h +++ b/arch/sparc/mm/mm_32.h @@ -20,6 +20,3 @@ void __init srmmu_paging_init(void); /* iommu.c */ void ld_mmu_iommu(void); - -/* io-unit.c */ -void ld_mmu_iounit(void); diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c index f56c3c9a9793..b7c94de70cca 100644 --- a/arch/sparc/mm/srmmu.c +++ b/arch/sparc/mm/srmmu.c @@ -1865,9 +1865,7 @@ void __init load_mmu(void) &smp_cachetlb_ops; #endif - if (sparc_cpu_model == sun4d) - ld_mmu_iounit(); - else + if (sparc_cpu_model != sun4d) ld_mmu_iommu(); #ifdef CONFIG_SMP if (sparc_cpu_model == sun4d) |