1 files changed, 0 insertions, 270 deletions
diff --git a/ANDROID_3.4.5/arch/sparc/mm/io-unit.c b/ANDROID_3.4.5/arch/sparc/mm/io-unit.c
deleted file mode 100644
index fc58c3e9..00000000
--- a/ANDROID_3.4.5/arch/sparc/mm/io-unit.c
+++ /dev/null
@@ -1,270 +0,0 @@
-/*
- * io-unit.c:  IO-UNIT specific routines for memory management.
- *
- * Copyright (C) 1997,1998 Jakub Jelinek    (jj@sunsite.mff.cuni.cz)
- */
- 
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-#include <linux/mm.h>
-#include <linux/highmem.h>	/* pte_offset_map => kmap_atomic */
-#include <linux/bitops.h>
-#include <linux/scatterlist.h>
-#include <linux/of.h>
-#include <linux/of_device.h>
-
-#include <asm/pgalloc.h>
-#include <asm/pgtable.h>
-#include <asm/io.h>
-#include <asm/io-unit.h>
-#include <asm/mxcc.h>
-#include <asm/cacheflush.h>
-#include <asm/tlbflush.h>
-#include <asm/dma.h>
-#include <asm/oplib.h>
-
-/* #define IOUNIT_DEBUG */
-#ifdef IOUNIT_DEBUG
-#define IOD(x) printk(x)
-#else
-#define IOD(x) do { } while (0)
-#endif
-
-#define IOPERM        (IOUPTE_CACHE | IOUPTE_WRITE | IOUPTE_VALID)
-#define MKIOPTE(phys) __iopte((((phys)>>4) & IOUPTE_PAGE) | IOPERM)
-
-static void __init iounit_iommu_init(struct platform_device *op)
-{
-	struct iounit_struct *iounit;
-	iopte_t *xpt, *xptend;
-
-	iounit = kzalloc(sizeof(struct iounit_struct), GFP_ATOMIC);
-	if (!iounit) {
-		prom_printf("SUN4D: Cannot alloc iounit, halting.\n");
-		prom_halt();
-	}
-
-	iounit->limit[0] = IOUNIT_BMAP1_START;
-	iounit->limit[1] = IOUNIT_BMAP2_START;
-	iounit->limit[2] = IOUNIT_BMAPM_START;
-	iounit->limit[3] = IOUNIT_BMAPM_END;
-	iounit->rotor[1] = IOUNIT_BMAP2_START;
-	iounit->rotor[2] = IOUNIT_BMAPM_START;
-
-	xpt = of_ioremap(&op->resource[2], 0, PAGE_SIZE * 16, "XPT");
-	if (!xpt) {
-		prom_printf("SUN4D: Cannot map External Page Table.");
-		prom_halt();
-	}
-	
-	op->dev.archdata.iommu = iounit;
-	iounit->page_table = xpt;
-	spin_lock_init(&iounit->lock);
-	
-	for (xptend = iounit->page_table + (16 * PAGE_SIZE) / sizeof(iopte_t);
-	     xpt < xptend;)
-	     	iopte_val(*xpt++) = 0;
-}
-
-static int __init iounit_init(void)
-{
-	extern void sun4d_init_sbi_irq(void);
-	struct device_node *dp;
-
-	for_each_node_by_name(dp, "sbi") {
-		struct platform_device *op = of_find_device_by_node(dp);
-
-		iounit_iommu_init(op);
-		of_propagate_archdata(op);
-	}
-
-	sun4d_init_sbi_irq();
-
-	return 0;
-}
-
-subsys_initcall(iounit_init);
-
-/* One has to hold iounit->lock to call this */
-static unsigned long iounit_get_area(struct iounit_struct *iounit, unsigned long vaddr, int size)
-{
-	int i, j, k, npages;
-	unsigned long rotor, scan, limit;
-	iopte_t iopte;
-
-        npages = ((vaddr & ~PAGE_MASK) + size + (PAGE_SIZE-1)) >> PAGE_SHIFT;
-
-	/* A tiny bit of magic ingredience :) */
-	switch (npages) {
-	case 1: i = 0x0231; break;
-	case 2: i = 0x0132; break;
-	default: i = 0x0213; break;
-	}
-	
-	IOD(("iounit_get_area(%08lx,%d[%d])=", vaddr, size, npages));
-	
-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_get_area: Couldn't find free iopte slots for (%08lx,%d)\n", vaddr, 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;
-	iopte = MKIOPTE(__pa(vaddr & PAGE_MASK));
-	vaddr = IOUNIT_DMA_BASE + (scan << PAGE_SHIFT) + (vaddr & ~PAGE_MASK);
-	for (k = 0; k < npages; k++, iopte = __iopte(iopte_val(iopte) + 0x100), scan++) {
-		set_bit(scan, iounit->bmap);
-		iounit->page_table[scan] = iopte;
-	}
-	IOD(("%08lx\n", vaddr));
-	return vaddr;
-}
-
-static __u32 iounit_get_scsi_one(struct device *dev, char *vaddr, unsigned long len)
-{
-	struct iounit_struct *iounit = dev->archdata.iommu;
-	unsigned long ret, flags;
-	
-	spin_lock_irqsave(&iounit->lock, flags);
-	ret = iounit_get_area(iounit, (unsigned long)vaddr, len);
-	spin_unlock_irqrestore(&iounit->lock, flags);
-	return ret;
-}
-
-static void iounit_get_scsi_sgl(struct device *dev, struct scatterlist *sg, int sz)
-{
-	struct iounit_struct *iounit = dev->archdata.iommu;
-	unsigned long flags;
-
-	/* FIXME: Cache some resolved pages - often several sg entries are to the same page */
-	spin_lock_irqsave(&iounit->lock, flags);
-	while (sz != 0) {
-		--sz;
-		sg->dma_address = iounit_get_area(iounit, (unsigned long) sg_virt(sg), sg->length);
-		sg->dma_length = sg->length;
-		sg = sg_next(sg);
-	}
-	spin_unlock_irqrestore(&iounit->lock, flags);
-}
-
-static void iounit_release_scsi_one(struct device *dev, __u32 vaddr, unsigned long len)
-{
-	struct iounit_struct *iounit = dev->archdata.iommu;
-	unsigned long flags;
-	
-	spin_lock_irqsave(&iounit->lock, flags);
-	len = ((vaddr & ~PAGE_MASK) + len + (PAGE_SIZE-1)) >> PAGE_SHIFT;
-	vaddr = (vaddr - IOUNIT_DMA_BASE) >> PAGE_SHIFT;
-	IOD(("iounit_release %08lx-%08lx\n", (long)vaddr, (long)len+vaddr));
-	for (len += vaddr; vaddr < len; vaddr++)
-		clear_bit(vaddr, iounit->bmap);
-	spin_unlock_irqrestore(&iounit->lock, flags);
-}
-
-static void iounit_release_scsi_sgl(struct device *dev, struct scatterlist *sg, int sz)
-{
-	struct iounit_struct *iounit = dev->archdata.iommu;
-	unsigned long flags;
-	unsigned long vaddr, len;
-
-	spin_lock_irqsave(&iounit->lock, flags);
-	while (sz != 0) {
-		--sz;
-		len = ((sg->dma_address & ~PAGE_MASK) + sg->length + (PAGE_SIZE-1)) >> PAGE_SHIFT;
-		vaddr = (sg->dma_address - IOUNIT_DMA_BASE) >> PAGE_SHIFT;
-		IOD(("iounit_release %08lx-%08lx\n", (long)vaddr, (long)len+vaddr));
-		for (len += vaddr; vaddr < len; vaddr++)
-			clear_bit(vaddr, iounit->bmap);
-		sg = sg_next(sg);
-	}
-	spin_unlock_irqrestore(&iounit->lock, flags);
-}
-
-#ifdef CONFIG_SBUS
-static int iounit_map_dma_area(struct device *dev, dma_addr_t *pba, unsigned long va, __u32 addr, int len)
-{
-	struct iounit_struct *iounit = dev->archdata.iommu;
-	unsigned long page, end;
-	pgprot_t dvma_prot;
-	iopte_t *iopte;
-
-	*pba = addr;
-
-	dvma_prot = __pgprot(SRMMU_CACHE | SRMMU_ET_PTE | SRMMU_PRIV);
-	end = PAGE_ALIGN((addr + len));
-	while(addr < end) {
-		page = va;
-		{
-			pgd_t *pgdp;
-			pmd_t *pmdp;
-			pte_t *ptep;
-			long i;
-
-			pgdp = pgd_offset(&init_mm, addr);
-			pmdp = pmd_offset(pgdp, addr);
-			ptep = pte_offset_map(pmdp, addr);
-
-			set_pte(ptep, mk_pte(virt_to_page(page), dvma_prot));
-			
-			i = ((addr - IOUNIT_DMA_BASE) >> PAGE_SHIFT);
-
-			iopte = (iopte_t *)(iounit->page_table + i);
-			*iopte = MKIOPTE(__pa(page));
-		}
-		addr += PAGE_SIZE;
-		va += PAGE_SIZE;
-	}
-	flush_cache_all();
-	flush_tlb_all();
-
-	return 0;
-}
-
-static void iounit_unmap_dma_area(struct device *dev, unsigned long addr, int len)
-{
-	/* XXX Somebody please fill this in */
-}
-#endif
-
-static char *iounit_lockarea(char *vaddr, unsigned long len)
-{
-/* FIXME: Write this */
-	return vaddr;
-}
-
-static void iounit_unlockarea(char *vaddr, unsigned long len)
-{
-/* FIXME: Write this */
-}
-
-void __init ld_mmu_iounit(void)
-{
-	BTFIXUPSET_CALL(mmu_lockarea, iounit_lockarea, BTFIXUPCALL_RETO0);
-	BTFIXUPSET_CALL(mmu_unlockarea, iounit_unlockarea, BTFIXUPCALL_NOP);
-
-	BTFIXUPSET_CALL(mmu_get_scsi_one, iounit_get_scsi_one, BTFIXUPCALL_NORM);
-	BTFIXUPSET_CALL(mmu_get_scsi_sgl, iounit_get_scsi_sgl, BTFIXUPCALL_NORM);
-	BTFIXUPSET_CALL(mmu_release_scsi_one, iounit_release_scsi_one, BTFIXUPCALL_NORM);
-	BTFIXUPSET_CALL(mmu_release_scsi_sgl, iounit_release_scsi_sgl, BTFIXUPCALL_NORM);
-
-#ifdef CONFIG_SBUS
-	BTFIXUPSET_CALL(mmu_map_dma_area, iounit_map_dma_area, BTFIXUPCALL_NORM);
-	BTFIXUPSET_CALL(mmu_unmap_dma_area, iounit_unmap_dma_area, BTFIXUPCALL_NORM);
-#endif
-}