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-rw-r--r--include/asm-sparc/io-unit.h62
1 files changed, 0 insertions, 62 deletions
diff --git a/include/asm-sparc/io-unit.h b/include/asm-sparc/io-unit.h
deleted file mode 100644
index 96823b47fd4..00000000000
--- a/include/asm-sparc/io-unit.h
+++ /dev/null
@@ -1,62 +0,0 @@
-/* io-unit.h: Definitions for the sun4d IO-UNIT.
- *
- * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
- */
-#ifndef _SPARC_IO_UNIT_H
-#define _SPARC_IO_UNIT_H
-
-#include <linux/spinlock.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-
-/* The io-unit handles all virtual to physical address translations
- * that occur between the SBUS and physical memory. Access by
- * the cpu to IO registers and similar go over the xdbus so are
- * translated by the on chip SRMMU. The io-unit and the srmmu do
- * not need to have the same translations at all, in fact most
- * of the time the translations they handle are a disjunct set.
- * Basically the io-unit handles all dvma sbus activity.
- */
-
-/* AIEEE, unlike the nice sun4m, these monsters have
- fixed DMA range 64M */
-
-#define IOUNIT_DMA_BASE 0xfc000000 /* TOP - 64M */
-#define IOUNIT_DMA_SIZE 0x04000000 /* 64M */
-/* We use last 1M for sparc_dvma_malloc */
-#define IOUNIT_DVMA_SIZE 0x00100000 /* 1M */
-
-/* The format of an iopte in the external page tables */
-#define IOUPTE_PAGE 0xffffff00 /* Physical page number (PA[35:12]) */
-#define IOUPTE_CACHE 0x00000080 /* Cached (in Viking/MXCC) */
-/* XXX Jakub, find out how to program SBUS streaming cache on XDBUS/sun4d.
- * XXX Actually, all you should need to do is find out where the registers
- * XXX are and copy over the sparc64 implementation I wrote. There may be
- * XXX some horrible hwbugs though, so be careful. -DaveM
- */
-#define IOUPTE_STREAM 0x00000040 /* Translation can use streaming cache */
-#define IOUPTE_INTRA 0x00000008 /* SBUS direct slot->slot transfer */
-#define IOUPTE_WRITE 0x00000004 /* Writeable */
-#define IOUPTE_VALID 0x00000002 /* IOPTE is valid */
-#define IOUPTE_PARITY 0x00000001 /* Parity is checked during DVMA */
-
-struct iounit_struct {
- unsigned long bmap[(IOUNIT_DMA_SIZE >> (PAGE_SHIFT + 3)) / sizeof(unsigned long)];
- spinlock_t lock;
- iopte_t *page_table;
- unsigned long rotor[3];
- unsigned long limit[4];
-};
-
-#define IOUNIT_BMAP1_START 0x00000000
-#define IOUNIT_BMAP1_END (IOUNIT_DMA_SIZE >> (PAGE_SHIFT + 1))
-#define IOUNIT_BMAP2_START IOUNIT_BMAP1_END
-#define IOUNIT_BMAP2_END IOUNIT_BMAP2_START + (IOUNIT_DMA_SIZE >> (PAGE_SHIFT + 2))
-#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) */