diff options
Diffstat (limited to 'include/asm-sparc64/iommu.h')
| -rw-r--r-- | include/asm-sparc64/iommu.h | 44 |
1 files changed, 4 insertions, 40 deletions
diff --git a/include/asm-sparc64/iommu.h b/include/asm-sparc64/iommu.h index 9c21b9dc3..4e709ee25 100644 --- a/include/asm-sparc64/iommu.h +++ b/include/asm-sparc64/iommu.h @@ -1,40 +1,12 @@ -/* iommu.h: Definitions for the sun5 IOMMU. +/* $Id: iommu.h,v 1.9 1999/09/21 14:39:39 davem Exp $ + * iommu.h: Definitions for the sun5 IOMMU. * - * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) + * Copyright (C) 1996, 1999 David S. Miller (davem@caip.rutgers.edu) */ #ifndef _SPARC64_IOMMU_H #define _SPARC64_IOMMU_H -#include <linux/spinlock.h> -#include <asm/page.h> -#include <asm/sysio.h> - -/* The iommu handles all virtual to physical address translations - * that occur between the SYSIO and physical memory. Access by - * the cpu to IO registers and similar go over the UPA so are - * translated by the on chip TLB's. The iommu and the TLB do - * not need to have the same translations at all, in fact most - * of the time the translations they handle are a disjoint set. - * Basically the iommu handles all SYSIO dvma translations. - */ - -/* The IOMMU register set. */ -#define IOMMU_CTRL_IMPL 0xf000000000000000 /* Implementation */ -#define IOMMU_CTRL_VERS 0x0f00000000000000 /* Version */ -#define IOMMU_CTRL_TSBSZ 0x0000000000070000 /* TSB Size */ -#define IOMMU_TSBSZ_1K 0x0000000000000000 /* TSB Table 1024 8-byte entries */ -#define IOMMU_TSBSZ_2K 0x0000000000010000 /* TSB Table 2048 8-byte entries */ -#define IOMMU_TSBSZ_4K 0x0000000000020000 /* TSB Table 4096 8-byte entries */ -#define IOMMU_TSBSZ_8K 0x0000000000030000 /* TSB Table 8192 8-byte entries */ -#define IOMMU_TSBSZ_16K 0x0000000000040000 /* TSB Table 16k 8-byte entries */ -#define IOMMU_TSBSZ_32K 0x0000000000050000 /* TSB Table 32k 8-byte entries */ -#define IOMMU_TSBSZ_64K 0x0000000000060000 /* TSB Table 64k 8-byte entries */ -#define IOMMU_TSBSZ_128K 0x0000000000070000 /* TSB Table 128k 8-byte entries */ -#define IOMMU_CTRL_TBWSZ 0x0000000000000004 /* Assumed page size, 0=8k 1=64k */ -#define IOMMU_CTRL_DENAB 0x0000000000000002 /* Diagnostic mode enable */ -#define IOMMU_CTRL_ENAB 0x0000000000000001 /* IOMMU Enable */ - -/* The format of an iopte in the page tables, we only use 64k pages. */ +/* The format of an iopte in the page tables. */ #define IOPTE_VALID 0x8000000000000000 /* IOPTE is valid */ #define IOPTE_64K 0x2000000000000000 /* IOPTE is for 64k page */ #define IOPTE_STBUF 0x1000000000000000 /* DVMA can use streaming buffer */ @@ -44,12 +16,4 @@ #define IOPTE_CACHE 0x0000000000000010 /* Cached (in UPA E-cache) */ #define IOPTE_WRITE 0x0000000000000002 /* Writeable */ -struct iommu_struct { - struct sysio_regs *sysio_regs; - iopte_t *page_table; - volatile unsigned int flushflag; - unsigned int strbuf_enabled; - spinlock_t iommu_lock; -}; - #endif /* !(_SPARC_IOMMU_H) */ |