From 0ad626a2a4c3d8e565b3a6f10eeda5b43560fbdb Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 26 Aug 2008 21:14:05 -0700 Subject: sparc32: Kill iounit_map_dma_*(). Unused. Signed-off-by: David S. Miller --- arch/sparc/include/asm/io-unit.h | 4 ---- arch/sparc/kernel/sparc_ksyms.c | 3 --- arch/sparc/mm/io-unit.c | 48 ---------------------------------------- 3 files changed, 55 deletions(-) (limited to 'arch/sparc') diff --git a/arch/sparc/include/asm/io-unit.h b/arch/sparc/include/asm/io-unit.h index 96823b47fd4..01ab2f613e9 100644 --- a/arch/sparc/include/asm/io-unit.h +++ b/arch/sparc/include/asm/io-unit.h @@ -55,8 +55,4 @@ struct iounit_struct { #define IOUNIT_BMAPM_START IOUNIT_BMAP2_END #define IOUNIT_BMAPM_END ((IOUNIT_DMA_SIZE - IOUNIT_DVMA_SIZE) >> PAGE_SHIFT) -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 *); - #endif /* !(_SPARC_IO_UNIT_H) */ diff --git a/arch/sparc/kernel/sparc_ksyms.c b/arch/sparc/kernel/sparc_ksyms.c index f2722ee3967..a9478dbef2e 100644 --- a/arch/sparc/kernel/sparc_ksyms.c +++ b/arch/sparc/kernel/sparc_ksyms.c @@ -134,9 +134,6 @@ EXPORT_SYMBOL(set_auxio); EXPORT_SYMBOL(get_auxio); #endif EXPORT_SYMBOL(io_remap_pfn_range); - /* P3: iounit_xxx may be needed, sun4d users */ -/* EXPORT_SYMBOL(iounit_map_dma_init); */ -/* EXPORT_SYMBOL(iounit_map_dma_page); */ #ifndef CONFIG_SMP EXPORT_SYMBOL(BTFIXUP_CALL(___xchg32)); diff --git a/arch/sparc/mm/io-unit.c b/arch/sparc/mm/io-unit.c index caf551ad9d8..53900230c2d 100644 --- a/arch/sparc/mm/io-unit.c +++ b/arch/sparc/mm/io-unit.c @@ -267,51 +267,3 @@ void __init ld_mmu_iounit(void) BTFIXUPSET_CALL(mmu_unmap_dma_area, iounit_unmap_dma_area, BTFIXUPCALL_NORM); #endif } - -__u32 iounit_map_dma_init(struct sbus_bus *sbus, int size) -{ - int i, j, k, npages; - unsigned long rotor, scan, limit; - unsigned long flags; - __u32 ret; - struct iounit_struct *iounit = sbus->ofdev.dev.archdata.iommu; - - npages = (size + (PAGE_SIZE-1)) >> PAGE_SHIFT; - i = 0x0213; - spin_lock_irqsave(&iounit->lock, flags); -next: j = (i & 15); - rotor = iounit->rotor[j - 1]; - limit = iounit->limit[j]; - scan = rotor; -nexti: scan = find_next_zero_bit(iounit->bmap, limit, scan); - if (scan + npages > limit) { - if (limit != rotor) { - limit = rotor; - scan = iounit->limit[j - 1]; - goto nexti; - } - i >>= 4; - if (!(i & 15)) - panic("iounit_map_dma_init: Couldn't find free iopte slots for %d bytes\n", size); - goto next; - } - for (k = 1, scan++; k < npages; k++) - if (test_bit(scan++, iounit->bmap)) - goto nexti; - iounit->rotor[j - 1] = (scan < limit) ? scan : iounit->limit[j - 1]; - scan -= npages; - ret = IOUNIT_DMA_BASE + (scan << PAGE_SHIFT); - for (k = 0; k < npages; k++, scan++) - set_bit(scan, iounit->bmap); - spin_unlock_irqrestore(&iounit->lock, flags); - return ret; -} - -__u32 iounit_map_dma_page(__u32 vaddr, void *addr, struct sbus_bus *sbus) -{ - int scan = (vaddr - IOUNIT_DMA_BASE) >> PAGE_SHIFT; - struct iounit_struct *iounit = sbus->ofdev.dev.archdata.iommu; - - iounit->page_table[scan] = MKIOPTE(__pa(((unsigned long)addr) & PAGE_MASK)); - return vaddr + (((unsigned long)addr) & ~PAGE_MASK); -} -- cgit v1.2.3