diff options
-rw-r--r-- | arch/sparc/include/asm/io-unit.h | 2 | ||||
-rw-r--r-- | arch/sparc/include/asm/iommu_32.h | 2 | ||||
-rw-r--r-- | arch/sparc/kernel/ioport.c | 17 | ||||
-rw-r--r-- | arch/sparc/mm/io-unit.c | 29 | ||||
-rw-r--r-- | arch/sparc/mm/iommu.c | 35 |
5 files changed, 45 insertions, 40 deletions
diff --git a/arch/sparc/include/asm/io-unit.h b/arch/sparc/include/asm/io-unit.h index 96823b47fd45..5df63ef95cf2 100644 --- a/arch/sparc/include/asm/io-unit.h +++ b/arch/sparc/include/asm/io-unit.h @@ -59,4 +59,6 @@ extern __u32 iounit_map_dma_init(struct sbus_bus *, int); #define iounit_map_dma_finish(sbus, addr, len) mmu_release_scsi_one(addr, len, sbus) extern __u32 iounit_map_dma_page(__u32, void *, struct sbus_bus *); +extern void iounit_init(struct sbus_bus *sbus); + #endif /* !(_SPARC_IO_UNIT_H) */ diff --git a/arch/sparc/include/asm/iommu_32.h b/arch/sparc/include/asm/iommu_32.h index 70c589c05a10..6b115a174c0c 100644 --- a/arch/sparc/include/asm/iommu_32.h +++ b/arch/sparc/include/asm/iommu_32.h @@ -118,4 +118,6 @@ static inline void iommu_invalidate_page(struct iommu_regs *regs, unsigned long regs->pageflush = (ba & PAGE_MASK); } +extern void iommu_init(struct device_node *dp, struct sbus_bus *sbus); + #endif /* !(_SPARC_IOMMU_H) */ diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c index 2a8a847764d8..f6158c4a3995 100644 --- a/arch/sparc/kernel/ioport.c +++ b/arch/sparc/kernel/ioport.c @@ -46,6 +46,8 @@ #include <asm/page.h> #include <asm/pgalloc.h> #include <asm/dma.h> +#include <asm/iommu.h> +#include <asm/io-unit.h> #define mmu_inval_dma_area(p, l) /* Anton pulled it out for 2.4.0-xx */ @@ -515,18 +517,11 @@ void __init sbus_setup_iommu(struct sbus_bus *sbus, struct device_node *dp) if (sparc_cpu_model != sun4d && parent != NULL && - !strcmp(parent->name, "iommu")) { - extern void iommu_init(int iommu_node, struct sbus_bus *sbus); + !strcmp(parent->name, "iommu")) + iommu_init(parent, sbus); - iommu_init(parent->node, sbus); - } - - if (sparc_cpu_model == sun4d) { - extern void iounit_init(int sbi_node, int iounit_node, - struct sbus_bus *sbus); - - iounit_init(dp->node, parent->node, sbus); - } + if (sparc_cpu_model == sun4d) + iounit_init(sbus); #endif } diff --git a/arch/sparc/mm/io-unit.c b/arch/sparc/mm/io-unit.c index f167835db3df..1093514a5773 100644 --- a/arch/sparc/mm/io-unit.c +++ b/arch/sparc/mm/io-unit.c @@ -34,13 +34,18 @@ #define IOPERM (IOUPTE_CACHE | IOUPTE_WRITE | IOUPTE_VALID) #define MKIOPTE(phys) __iopte((((phys)>>4) & IOUPTE_PAGE) | IOPERM) -void __init -iounit_init(int sbi_node, int io_node, struct sbus_bus *sbus) +void __init iounit_init(struct sbus_bus *sbus) { - iopte_t *xpt, *xptend; + struct device_node *dp = sbus->ofdev.node; struct iounit_struct *iounit; - struct linux_prom_registers iommu_promregs[PROMREG_MAX]; - struct resource r; + iopte_t *xpt, *xptend; + struct of_device *op; + + op = of_find_device_by_node(dp); + if (!op) { + prom_printf("SUN4D: Cannot find SBI of_device.\n"); + prom_halt(); + } iounit = kzalloc(sizeof(struct iounit_struct), GFP_ATOMIC); if (!iounit) { @@ -55,18 +60,14 @@ iounit_init(int sbi_node, int io_node, struct sbus_bus *sbus) iounit->rotor[1] = IOUNIT_BMAP2_START; iounit->rotor[2] = IOUNIT_BMAPM_START; - xpt = NULL; - if(prom_getproperty(sbi_node, "reg", (void *) iommu_promregs, - sizeof(iommu_promregs)) != -1) { - prom_apply_generic_ranges(io_node, 0, iommu_promregs, 3); - memset(&r, 0, sizeof(r)); - r.flags = iommu_promregs[2].which_io; - r.start = iommu_promregs[2].phys_addr; - xpt = (iopte_t *) sbus_ioremap(&r, 0, PAGE_SIZE * 16, "XPT"); + xpt = of_ioremap(&op->resource[2], 0, PAGE_SIZE * 16, "XPT"); + if (!xpt) { + prom_printf("SUN4D: Cannot map External Page Table."); + prom_halt(); } - if(!xpt) panic("Cannot map External Page Table."); sbus->ofdev.dev.archdata.iommu = iounit; + op->dev.archdata.iommu = iounit; iounit->page_table = xpt; spin_lock_init(&iounit->lock); diff --git a/arch/sparc/mm/iommu.c b/arch/sparc/mm/iommu.c index 4b934270f05e..a86c9f552fa1 100644 --- a/arch/sparc/mm/iommu.c +++ b/arch/sparc/mm/iommu.c @@ -55,30 +55,34 @@ 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) -void __init -iommu_init(int iommund, struct sbus_bus *sbus) +void __init iommu_init(struct device_node *parent, struct sbus_bus *sbus) { - unsigned int impl, vers; - unsigned long tmp; + struct of_device *parent_op, *op; struct iommu_struct *iommu; - struct linux_prom_registers iommu_promregs[PROMREG_MAX]; - struct resource r; + unsigned int impl, vers; unsigned long *bitmap; + unsigned long tmp; + + parent_op = of_find_device_by_node(parent); + if (!parent_op) { + prom_printf("Unable to find IOMMU of_device\n"); + prom_halt(); + } + + op = of_find_device_by_node(sbus->ofdev.node); + if (!op) { + prom_printf("Unable to find SBUS of_device\n"); + prom_halt(); + } iommu = kmalloc(sizeof(struct iommu_struct), GFP_ATOMIC); if (!iommu) { prom_printf("Unable to allocate iommu structure\n"); prom_halt(); } - iommu->regs = NULL; - if (prom_getproperty(iommund, "reg", (void *) iommu_promregs, - sizeof(iommu_promregs)) != -1) { - memset(&r, 0, sizeof(r)); - r.flags = iommu_promregs[0].which_io; - r.start = iommu_promregs[0].phys_addr; - iommu->regs = (struct iommu_regs *) - sbus_ioremap(&r, 0, PAGE_SIZE * 3, "iommu_regs"); - } + + iommu->regs = of_ioremap(&parent_op->resource[0], 0, PAGE_SIZE * 3, + "iommu_regs"); if (!iommu->regs) { prom_printf("Cannot map IOMMU registers\n"); prom_halt(); @@ -133,6 +137,7 @@ iommu_init(int iommund, struct sbus_bus *sbus) (int)(IOMMU_NPTES*sizeof(iopte_t)), (int)IOMMU_NPTES); sbus->ofdev.dev.archdata.iommu = iommu; + op->dev.archdata.iommu = iommu; } /* This begs to be btfixup-ed by srmmu. */ |