/* SPDX-License-Identifier: GPL-2.0 */ /* iommu.h: Definitions for the sun4m IOMMU. * * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) */ #ifndef _SPARC_IOMMU_H #define _SPARC_IOMMU_H #include <asm/page.h> #include <asm/bitext.h> /* The iommu 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 mbus so are * translated by the on chip SRMMU. The iommu 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 iommu handles all dvma sbus activity. */ /* The IOMMU registers occupy three pages in IO space. */ struct iommu_regs { /* First page */ volatile unsigned long control; /* IOMMU control */ volatile unsigned long base; /* Physical base of iopte page table */ volatile unsigned long _unused1[3]; volatile unsigned long tlbflush; /* write only */ volatile unsigned long pageflush; /* write only */ volatile unsigned long _unused2[1017]; /* Second page */ volatile unsigned long afsr; /* Async-fault status register */ volatile unsigned long afar; /* Async-fault physical address */ volatile unsigned long _unused3[2]; volatile unsigned long sbuscfg0; /* SBUS configuration registers, per-slot */ volatile unsigned long sbuscfg1; volatile unsigned long sbuscfg2; volatile unsigned long sbuscfg3; volatile unsigned long mfsr; /* Memory-fault status register */ volatile unsigned long mfar; /* Memory-fault physical address */ volatile unsigned long _unused4[1014]; /* Third page */ volatile unsigned long mid; /* IOMMU module-id */ }; #define IOMMU_CTRL_IMPL 0xf0000000 /* Implementation */ #define IOMMU_CTRL_VERS 0x0f000000 /* Version */ #define IOMMU_CTRL_RNGE 0x0000001c /* Mapping RANGE */ #define IOMMU_RNGE_16MB 0x00000000 /* 0xff000000 -> 0xffffffff */ #define IOMMU_RNGE_32MB 0x00000004 /* 0xfe000000 -> 0xffffffff */ #define IOMMU_RNGE_64MB 0x00000008 /* 0xfc000000 -> 0xffffffff */ #define IOMMU_RNGE_128MB 0x0000000c /* 0xf8000000 -> 0xffffffff */ #define IOMMU_RNGE_256MB 0x00000010 /* 0xf0000000 -> 0xffffffff */ #define IOMMU_RNGE_512MB 0x00000014 /* 0xe0000000 -> 0xffffffff */ #define IOMMU_RNGE_1GB 0x00000018 /* 0xc0000000 -> 0xffffffff */ #define IOMMU_RNGE_2GB 0x0000001c /* 0x80000000 -> 0xffffffff */ #define IOMMU_CTRL_ENAB 0x00000001 /* IOMMU Enable */ #define IOMMU_AFSR_ERR 0x80000000 /* LE, TO, or BE asserted */ #define IOMMU_AFSR_LE 0x40000000 /* SBUS reports error after transaction */ #define IOMMU_AFSR_TO 0x20000000 /* Write access took more than 12.8 us. */ #define IOMMU_AFSR_BE 0x10000000 /* Write access received error acknowledge */ #define IOMMU_AFSR_SIZE 0x0e000000 /* Size of transaction causing error */ #define IOMMU_AFSR_S 0x01000000 /* Sparc was in supervisor mode */ #define IOMMU_AFSR_RESV 0x00f00000 /* Reserver, forced to 0x8 by hardware */ #define IOMMU_AFSR_ME 0x00080000 /* Multiple errors occurred */ #define IOMMU_AFSR_RD 0x00040000 /* A read operation was in progress */ #define IOMMU_AFSR_FAV 0x00020000 /* IOMMU afar has valid contents */ #define IOMMU_SBCFG_SAB30 0x00010000 /* Phys-address bit 30 when bypass enabled */ #define IOMMU_SBCFG_BA16 0x00000004 /* Slave supports 16 byte bursts */ #define IOMMU_SBCFG_BA8 0x00000002 /* Slave supports 8 byte bursts */ #define IOMMU_SBCFG_BYPASS 0x00000001 /* Bypass IOMMU, treat all addresses produced by this device as pure physical. */ #define IOMMU_MFSR_ERR 0x80000000 /* One or more of PERR1 or PERR0 */ #define IOMMU_MFSR_S 0x01000000 /* Sparc was in supervisor mode */ #define IOMMU_MFSR_CPU 0x00800000 /* CPU transaction caused parity error */ #define IOMMU_MFSR_ME 0x00080000 /* Multiple parity errors occurred */ #define IOMMU_MFSR_PERR 0x00006000 /* high bit indicates parity error occurred on the even word of the access, low bit indicated odd word caused the parity error */ #define IOMMU_MFSR_BM 0x00001000 /* Error occurred while in boot mode */ #define IOMMU_MFSR_C 0x00000800 /* Address causing error was marked cacheable */ #define IOMMU_MFSR_RTYP 0x000000f0 /* Memory request transaction type */ #define IOMMU_MID_SBAE 0x001f0000 /* SBus arbitration enable */ #define IOMMU_MID_SE 0x00100000 /* Enables SCSI/ETHERNET arbitration */ #define IOMMU_MID_SB3 0x00080000 /* Enable SBUS device 3 arbitration */ #define IOMMU_MID_SB2 0x00040000 /* Enable SBUS device 2 arbitration */ #define IOMMU_MID_SB1 0x00020000 /* Enable SBUS device 1 arbitration */ #define IOMMU_MID_SB0 0x00010000 /* Enable SBUS device 0 arbitration */ #define IOMMU_MID_MID 0x0000000f /* Module-id, hardcoded to 0x8 */ /* The format of an iopte in the page tables */ #define IOPTE_PAGE 0x07ffff00 /* Physical page number (PA[30:12]) */ #define IOPTE_CACHE 0x00000080 /* Cached (in vme IOCACHE or Viking/MXCC) */ #define IOPTE_WRITE 0x00000004 /* Writeable */ #define IOPTE_VALID 0x00000002 /* IOPTE is valid */ #define IOPTE_WAZ 0x00000001 /* Write as zeros */ struct iommu_struct { struct iommu_regs __iomem *regs; iopte_t *page_table; /* For convenience */ unsigned long start; /* First managed virtual address */ unsigned long end; /* Last managed virtual address */ struct bit_map usemap; }; static inline void iommu_invalidate(struct iommu_regs __iomem *regs) { sbus_writel(0, ®s->tlbflush); } static inline void iommu_invalidate_page(struct iommu_regs __iomem *regs, unsigned long ba) { sbus_writel(ba & PAGE_MASK, ®s->pageflush); } #endif /* !(_SPARC_IOMMU_H) */
Name | Type | Size | Permission | Actions |
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Kbuild | File | 491 B | 0644 |
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agp.h | File | 434 B | 0644 |
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apb.h | File | 1.06 KB | 0644 |
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asm-offsets.h | File | 35 B | 0644 |
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asm-prototypes.h | File | 727 B | 0644 |
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asm.h | File | 1.08 KB | 0644 |
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asmmacro.h | File | 1.16 KB | 0644 |
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atomic.h | File | 219 B | 0644 |
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atomic_32.h | File | 2.26 KB | 0644 |
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auxio.h | File | 310 B | 0644 |
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auxio_64.h | File | 3.18 KB | 0644 |
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backoff.h | File | 2.7 KB | 0644 |
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barrier.h | File | 223 B | 0644 |
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barrier_32.h | File | 160 B | 0644 |
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barrier_64.h | File | 1.96 KB | 0644 |
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bbc.h | File | 9.76 KB | 0644 |
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bitext.h | File | 631 B | 0644 |
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bitops.h | File | 219 B | 0644 |
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bitops_32.h | File | 2.79 KB | 0644 |
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bitops_64.h | File | 1.64 KB | 0644 |
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btext.h | File | 145 B | 0644 |
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bug.h | File | 588 B | 0644 |
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bugs.h | File | 404 B | 0644 |
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cache.h | File | 649 B | 0644 |
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cacheflush.h | File | 373 B | 0644 |
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cacheflush_32.h | File | 1.97 KB | 0644 |
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cacheflush_64.h | File | 2.56 KB | 0644 |
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cachetlb_32.h | File | 882 B | 0644 |
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chafsr.h | File | 9.48 KB | 0644 |
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checksum.h | File | 227 B | 0644 |
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checksum_32.h | File | 6.81 KB | 0644 |
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checksum_64.h | File | 4.4 KB | 0644 |
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chmctrl.h | File | 7.91 KB | 0644 |
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clock.h | File | 231 B | 0644 |
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clocksource.h | File | 407 B | 0644 |
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cmpxchg.h | File | 223 B | 0644 |
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cmpxchg_32.h | File | 2.4 KB | 0644 |
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cmpxchg_64.h | File | 5.13 KB | 0644 |
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compat.h | File | 6.45 KB | 0644 |
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compat_signal.h | File | 565 B | 0644 |
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contregs.h | File | 1.9 KB | 0644 |
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cpu_type.h | File | 579 B | 0644 |
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cpudata.h | File | 378 B | 0644 |
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cpudata_32.h | File | 729 B | 0644 |
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cpudata_64.h | File | 1.13 KB | 0644 |
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current.h | File | 991 B | 0644 |
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dcr.h | File | 728 B | 0644 |
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dcu.h | File | 1.48 KB | 0644 |
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delay.h | File | 215 B | 0644 |
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delay_32.h | File | 907 B | 0644 |
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delay_64.h | File | 403 B | 0644 |
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device.h | File | 565 B | 0644 |
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dma-mapping.h | File | 632 B | 0644 |
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dma.h | File | 6.6 KB | 0644 |
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ebus_dma.h | File | 1.07 KB | 0644 |
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ecc.h | File | 4.34 KB | 0644 |
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eeprom.h | File | 254 B | 0644 |
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elf.h | File | 207 B | 0644 |
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elf_32.h | File | 3.19 KB | 0644 |
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elf_64.h | File | 6.47 KB | 0644 |
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estate.h | File | 2.23 KB | 0644 |
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extable_64.h | File | 727 B | 0644 |
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fb.h | File | 680 B | 0644 |
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fbio.h | File | 2.26 KB | 0644 |
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fhc.h | File | 4.43 KB | 0644 |
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floppy.h | File | 219 B | 0644 |
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floppy_32.h | File | 9.74 KB | 0644 |
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floppy_64.h | File | 18.83 KB | 0644 |
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fpumacro.h | File | 710 B | 0644 |
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ftrace.h | File | 800 B | 0644 |
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futex.h | File | 215 B | 0644 |
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futex_32.h | File | 82 B | 0644 |
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futex_64.h | File | 2.15 KB | 0644 |
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hardirq.h | File | 223 B | 0644 |
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hardirq_32.h | File | 334 B | 0644 |
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hardirq_64.h | File | 417 B | 0644 |
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head.h | File | 211 B | 0644 |
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head_32.h | File | 2.56 KB | 0644 |
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head_64.h | File | 2.13 KB | 0644 |
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hibernate.h | File | 421 B | 0644 |
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highmem.h | File | 2.02 KB | 0644 |
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hugetlb.h | File | 2.09 KB | 0644 |
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hvtramp.h | File | 782 B | 0644 |
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hw_irq.h | File | 88 B | 0644 |
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hypervisor.h | File | 110.71 KB | 0644 |
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ide.h | File | 2.19 KB | 0644 |
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idprom.h | File | 656 B | 0644 |
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intr_queue.h | File | 794 B | 0644 |
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io-unit.h | File | 2.41 KB | 0644 |
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io.h | File | 620 B | 0644 |
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io_32.h | File | 3.51 KB | 0644 |
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io_64.h | File | 10.66 KB | 0644 |
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ioctls.h | File | 358 B | 0644 |
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iommu.h | File | 215 B | 0644 |
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iommu_32.h | File | 5.73 KB | 0644 |
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iommu_64.h | File | 2.43 KB | 0644 |
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irq.h | File | 207 B | 0644 |
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irq_32.h | File | 526 B | 0644 |
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irq_64.h | File | 3.06 KB | 0644 |
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irqflags.h | File | 227 B | 0644 |
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irqflags_32.h | File | 1.03 KB | 0644 |
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irqflags_64.h | File | 1.91 KB | 0644 |
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jump_label.h | File | 1.01 KB | 0644 |
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kdebug.h | File | 219 B | 0644 |
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kdebug_32.h | File | 1.99 KB | 0644 |
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kdebug_64.h | File | 393 B | 0644 |
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kgdb.h | File | 1014 B | 0644 |
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kmap_types.h | File | 233 B | 0644 |
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kprobes.h | File | 1.41 KB | 0644 |
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ldc.h | File | 4.37 KB | 0644 |
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leon.h | File | 7.37 KB | 0644 |
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leon_amba.h | File | 8.09 KB | 0644 |
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leon_pci.h | File | 512 B | 0644 |
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lsu.h | File | 1.04 KB | 0644 |
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machines.h | File | 1.5 KB | 0644 |
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mbus.h | File | 2.93 KB | 0644 |
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mc146818rtc.h | File | 298 B | 0644 |
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mc146818rtc_32.h | File | 699 B | 0644 |
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mc146818rtc_64.h | File | 689 B | 0644 |
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mdesc.h | File | 2.99 KB | 0644 |
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memctrl.h | File | 311 B | 0644 |
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mman.h | File | 304 B | 0644 |
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mmu.h | File | 207 B | 0644 |
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mmu_32.h | File | 209 B | 0644 |
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mmu_64.h | File | 3.14 KB | 0644 |
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mmu_context.h | File | 239 B | 0644 |
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mmu_context_32.h | File | 1.07 KB | 0644 |
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mmu_context_64.h | File | 4.15 KB | 0644 |
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mmzone.h | File | 393 B | 0644 |
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msi.h | File | 774 B | 0644 |
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mxcc.h | File | 4.33 KB | 0644 |
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nmi.h | File | 354 B | 0644 |
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ns87303.h | File | 3.22 KB | 0644 |
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obio.h | File | 6.26 KB | 0644 |
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openprom.h | File | 7.3 KB | 0644 |
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oplib.h | File | 215 B | 0644 |
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oplib_32.h | File | 5.92 KB | 0644 |
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oplib_64.h | File | 8.12 KB | 0644 |
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page.h | File | 274 B | 0644 |
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page_32.h | File | 3.91 KB | 0644 |
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page_64.h | File | 4.49 KB | 0644 |
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parport.h | File | 5.68 KB | 0644 |
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pbm.h | File | 1.47 KB | 0644 |
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pci.h | File | 207 B | 0644 |
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pci_32.h | File | 1.09 KB | 0644 |
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pci_64.h | File | 1.49 KB | 0644 |
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pcic.h | File | 5.77 KB | 0644 |
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pcr.h | File | 1.85 KB | 0644 |
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percpu.h | File | 219 B | 0644 |
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percpu_32.h | File | 168 B | 0644 |
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percpu_64.h | File | 515 B | 0644 |
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perf_event.h | File | 802 B | 0644 |
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pgalloc.h | File | 223 B | 0644 |
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pgalloc_32.h | File | 1.91 KB | 0644 |
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pgalloc_64.h | File | 2.85 KB | 0644 |
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pgtable.h | File | 223 B | 0644 |
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pgtable_32.h | File | 11.35 KB | 0644 |
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pgtable_64.h | File | 30.71 KB | 0644 |
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pgtsrmmu.h | File | 6.05 KB | 0644 |
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pil.h | File | 1.08 KB | 0644 |
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processor.h | File | 231 B | 0644 |
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processor_32.h | File | 3.13 KB | 0644 |
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processor_64.h | File | 7.58 KB | 0644 |
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prom.h | File | 2.02 KB | 0644 |
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psr.h | File | 1.38 KB | 0644 |
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ptrace.h | File | 4.19 KB | 0644 |
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qrwlock.h | File | 205 B | 0644 |
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qspinlock.h | File | 215 B | 0644 |
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ross.h | File | 5.52 KB | 0644 |
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sbi.h | File | 3.34 KB | 0644 |
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scratchpad.h | File | 547 B | 0644 |
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seccomp.h | File | 225 B | 0644 |
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sections.h | File | 289 B | 0644 |
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setup.h | File | 1.52 KB | 0644 |
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sfafsr.h | File | 3.14 KB | 0644 |
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sfp-machine.h | File | 239 B | 0644 |
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sfp-machine_32.h | File | 6.79 KB | 0644 |
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sfp-machine_64.h | File | 3.1 KB | 0644 |
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shmparam.h | File | 227 B | 0644 |
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shmparam_32.h | File | 253 B | 0644 |
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shmparam_64.h | File | 306 B | 0644 |
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sigcontext.h | File | 2.55 KB | 0644 |
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signal.h | File | 835 B | 0644 |
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smp.h | File | 207 B | 0644 |
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smp_32.h | File | 3.29 KB | 0644 |
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smp_64.h | File | 1.84 KB | 0644 |
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sparsemem.h | File | 349 B | 0644 |
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spinlock.h | File | 227 B | 0644 |
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spinlock_32.h | File | 4.22 KB | 0644 |
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spinlock_64.h | File | 409 B | 0644 |
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spinlock_types.h | File | 549 B | 0644 |
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spitfire.h | File | 9.73 KB | 0644 |
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stacktrace.h | File | 166 B | 0644 |
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starfire.h | File | 418 B | 0644 |
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string.h | File | 1.13 KB | 0644 |
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string_32.h | File | 405 B | 0644 |
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string_64.h | File | 505 B | 0644 |
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sunbpp.h | File | 3.27 KB | 0644 |
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swift.h | File | 3.07 KB | 0644 |
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switch_to.h | File | 231 B | 0644 |
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switch_to_32.h | File | 3.53 KB | 0644 |
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switch_to_64.h | File | 2.58 KB | 0644 |
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syscall.h | File | 3.41 KB | 0644 |
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syscalls.h | File | 307 B | 0644 |
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termbits.h | File | 198 B | 0644 |
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termios.h | File | 4.94 KB | 0644 |
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thread_info.h | File | 239 B | 0644 |
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thread_info_32.h | File | 3.66 KB | 0644 |
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thread_info_64.h | File | 7.84 KB | 0644 |
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timer.h | File | 215 B | 0644 |
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timer_32.h | File | 1.18 KB | 0644 |
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timer_64.h | File | 2.37 KB | 0644 |
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timex.h | File | 215 B | 0644 |
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timex_32.h | File | 266 B | 0644 |
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timex_64.h | File | 423 B | 0644 |
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tlb.h | File | 207 B | 0644 |
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tlb_32.h | File | 520 B | 0644 |
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tlb_64.h | File | 913 B | 0644 |
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tlbflush.h | File | 227 B | 0644 |
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tlbflush_32.h | File | 621 B | 0644 |
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tlbflush_64.h | File | 1.73 KB | 0644 |
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topology.h | File | 227 B | 0644 |
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topology_32.h | File | 170 B | 0644 |
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topology_64.h | File | 1.51 KB | 0644 |
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trap_block.h | File | 6.51 KB | 0644 |
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traps.h | File | 577 B | 0644 |
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tsb.h | File | 12.17 KB | 0644 |
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tsunami.h | File | 1.85 KB | 0644 |
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ttable.h | File | 20.08 KB | 0644 |
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turbosparc.h | File | 3.78 KB | 0644 |
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uaccess.h | File | 363 B | 0644 |
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uaccess_32.h | File | 8.31 KB | 0644 |
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uaccess_64.h | File | 6.05 KB | 0644 |
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unaligned.h | File | 339 B | 0644 |
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unistd.h | File | 1.37 KB | 0644 |
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upa.h | File | 3.72 KB | 0644 |
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uprobes.h | File | 1.86 KB | 0644 |
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user.h | File | 102 B | 0644 |
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vaddrs.h | File | 2.02 KB | 0644 |
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vdso.h | File | 662 B | 0644 |
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vga.h | File | 964 B | 0644 |
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viking.h | File | 8.14 KB | 0644 |
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vio.h | File | 11.81 KB | 0644 |
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visasm.h | File | 1.51 KB | 0644 |
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vvar.h | File | 1.52 KB | 0644 |
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winmacro.h | File | 4.66 KB | 0644 |
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xor.h | File | 207 B | 0644 |
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xor_32.h | File | 7.31 KB | 0644 |
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xor_64.h | File | 2.5 KB | 0644 |
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