/* $NetBSD: bus.h,v 1.28 2008/04/28 20:23:31 martin Exp $ */ /*- * Copyright (c) 1996, 1997, 1998, 2001 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, * NASA Ames Research Center. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef _TSARMIPS_BUS_H_ #define _TSARMIPS_BUS_H_ #include #include #include /* * Utility macros; do not use outside this file. */ #define __PB_TYPENAME_PREFIX(BITS) ___CONCAT(u_int,BITS) #define __PB_TYPENAME(BITS) ___CONCAT(__PB_TYPENAME_PREFIX(BITS),_t) /* * Bus address and size types */ typedef uint64_t bus_addr_t; typedef u_long bus_size_t; #define PRIxBUSADDR PRIxPADDR #define PRIxBUSSIZE "lx" /* * Access methods for bus resources and address space. */ typedef int bus_space_tag_t; typedef vaddr_t bus_space_handle_t; /* * int bus_space_map __P((bus_space_tag_t t, bus_addr_t addr, * bus_size_t size, int flags, bus_space_handle_t *bshp)); * * Map a region of bus space. */ #define BUS_SPACE_MAP_CACHEABLE 0x01 #define BUS_SPACE_MAP_LINEAR 0x02 #define BUS_SPACE_MAP_PREFETCHABLE 0x04 int bus_space_map __P((bus_space_tag_t, bus_addr_t, bus_size_t, int, bus_space_handle_t *)); /* * void bus_space_unmap __P((bus_space_tag_t t, * bus_space_handle_t bsh, bus_size_t size)); * * Unmap a region of bus space. */ void bus_space_unmap __P((bus_space_tag_t, bus_space_handle_t, bus_size_t)); /* * int bus_space_subregion __P((bus_space_tag_t t, * bus_space_handle_t bsh, bus_size_t offset, bus_size_t size, * bus_space_handle_t *nbshp)); * * Get a new handle for a subregion of an already-mapped area of bus space. */ int bus_space_subregion __P((bus_space_tag_t t, bus_space_handle_t bsh, bus_size_t offset, bus_size_t size, bus_space_handle_t *nbshp)); /* * int bus_space_alloc __P((bus_space_tag_t t, bus_addr_t, rstart, * bus_addr_t rend, bus_size_t size, bus_size_t align, * bus_size_t boundary, int flags, bus_addr_t *addrp, * bus_space_handle_t *bshp)); * * Allocate a region of bus space. */ int bus_space_alloc __P((bus_space_tag_t t, bus_addr_t rstart, bus_addr_t rend, bus_size_t size, bus_size_t align, bus_size_t boundary, int cacheable, bus_addr_t *addrp, bus_space_handle_t *bshp)); /* * int bus_space_free __P((bus_space_tag_t t, * bus_space_handle_t bsh, bus_size_t size)); * * Free a region of bus space. */ void bus_space_free __P((bus_space_tag_t t, bus_space_handle_t bsh, bus_size_t size)); paddr_t bus_space_mmap(bus_space_tag_t, bus_addr_t, off_t, int, int); /* * void *bus_space_vaddr __P((bus_space_tag_t, bus_space_handle_t)); * * Get the kernel virtual address for the mapped bus space. * Only allowed for regions mapped with BUS_SPACE_MAP_LINEAR. * (XXX not enforced) */ #define bus_space_vaddr(t, h) \ ((void *)(h)) /* * u_intN_t bus_space_read_N __P((bus_space_tag_t tag, * bus_space_handle_t bsh, bus_size_t offset)); * * Read a 1, 2, 4, or 8 byte quantity from bus space * described by tag/handle/offset. */ #define bus_space_read_1(t, h, o) \ ((void) t, (*(volatile u_int8_t *)((h) + (o)))) #define bus_space_read_2(t, h, o) \ ((void) t, (*(volatile u_int16_t *)((h) + (o)))) #define bus_space_read_4(t, h, o) \ ((void) t, (*(volatile u_int32_t *)((h) + (o)))) #if 0 /* Cause a link error for bus_space_read_8 */ #define bus_space_read_8(t, h, o) !!! bus_space_read_8 unimplemented !!! #endif /* * void bus_space_read_multi_N __P((bus_space_tag_t tag, * bus_space_handle_t bsh, bus_size_t offset, * u_intN_t *addr, size_t count)); * * Read `count' 1, 2, 4, or 8 byte quantities from bus space * described by tag/handle/offset and copy into buffer provided. */ #define __TSARMIPS_bus_space_read_multi(BYTES,BITS) \ static __inline void __CONCAT(bus_space_read_multi_,BYTES) \ (bus_space_tag_t, bus_space_handle_t, bus_size_t, \ __PB_TYPENAME(BITS) *, size_t); \ \ static __inline void \ __CONCAT(bus_space_read_multi_,BYTES)( \ bus_space_tag_t t, \ bus_space_handle_t h, \ bus_size_t o, \ __PB_TYPENAME(BITS) *a, \ size_t c \ ) \ { \ \ while (c--) \ *a++ = __CONCAT(bus_space_read_,BYTES)(t, h, o); \ } __TSARMIPS_bus_space_read_multi(1,8) __TSARMIPS_bus_space_read_multi(2,16) __TSARMIPS_bus_space_read_multi(4,32) #if 0 /* Cause a link error for bus_space_read_multi_8 */ #define bus_space_read_multi_8 !!! bus_space_read_multi_8 unimplemented !!! #endif #undef __TSARMIPS_bus_space_read_multi /* * void bus_space_read_region_N __P((bus_space_tag_t tag, * bus_space_handle_t bsh, bus_size_t offset, * u_intN_t *addr, size_t count)); * * Read `count' 1, 2, 4, or 8 byte quantities from bus space * described by tag/handle and starting at `offset' and copy into * buffer provided. */ #define __TSARMIPS_bus_space_read_region(BYTES,BITS) \ static __inline void __CONCAT(bus_space_read_region_,BYTES) \ (bus_space_tag_t, bus_space_handle_t, bus_size_t, \ __PB_TYPENAME(BITS) *, size_t); \ \ static __inline void \ __CONCAT(bus_space_read_region_,BYTES)( \ bus_space_tag_t t, \ bus_space_handle_t h, \ bus_size_t o, \ __PB_TYPENAME(BITS) *a, \ size_t c \ ) \ { \ \ while (c--) { \ *a++ = __CONCAT(bus_space_read_,BYTES)(t, h, o); \ o += BYTES; \ } \ } __TSARMIPS_bus_space_read_region(1,8) __TSARMIPS_bus_space_read_region(2,16) __TSARMIPS_bus_space_read_region(4,32) #if 0 /* Cause a link error for bus_space_read_region_8 */ #define bus_space_read_region_8 !!! bus_space_read_region_8 unimplemented !!! #endif #undef __TSARMIPS_bus_space_read_region /* * void bus_space_write_N __P((bus_space_tag_t tag, * bus_space_handle_t bsh, bus_size_t offset, * u_intN_t value)); * * Write the 1, 2, 4, or 8 byte value `value' to bus space * described by tag/handle/offset. */ #define bus_space_write_1(t, h, o, v) \ do { \ (void) t; \ *(volatile u_int8_t *)((h) + (o)) = (v); \ wbflush(); /* XXX */ \ } while (0) #define bus_space_write_2(t, h, o, v) \ do { \ (void) t; \ *(volatile u_int16_t *)((h) + (o)) = (v); \ wbflush(); /* XXX */ \ } while (0) #define bus_space_write_4(t, h, o, v) \ do { \ (void) t; \ *(volatile u_int32_t *)((h) + (o)) = (v); \ wbflush(); /* XXX */ \ } while (0) #if 0 /* Cause a link error for bus_space_write_8 */ #define bus_space_write_8 !!! bus_space_write_8 not implemented !!! #endif /* * void bus_space_write_multi_N __P((bus_space_tag_t tag, * bus_space_handle_t bsh, bus_size_t offset, * const u_intN_t *addr, size_t count)); * * Write `count' 1, 2, 4, or 8 byte quantities from the buffer * provided to bus space described by tag/handle/offset. */ #define __TSARMIPS_bus_space_write_multi(BYTES,BITS) \ static __inline void __CONCAT(bus_space_write_multi_,BYTES) \ (bus_space_tag_t, bus_space_handle_t, bus_size_t, \ __PB_TYPENAME(BITS) *, size_t); \ \ static __inline void \ __CONCAT(bus_space_write_multi_,BYTES)( \ bus_space_tag_t t, \ bus_space_handle_t h, \ bus_size_t o, \ __PB_TYPENAME(BITS) *a, \ size_t c \ ) \ { \ \ while (c--) \ __CONCAT(bus_space_write_,BYTES)(t, h, o, *a++); \ } __TSARMIPS_bus_space_write_multi(1,8) __TSARMIPS_bus_space_write_multi(2,16) __TSARMIPS_bus_space_write_multi(4,32) #if 0 /* Cause a link error for bus_space_write_8 */ #define bus_space_write_multi_8(t, h, o, a, c) \ !!! bus_space_write_multi_8 unimplimented !!! #endif #undef __TSARMIPS_bus_space_write_multi /* * void bus_space_write_region_N __P((bus_space_tag_t tag, * bus_space_handle_t bsh, bus_size_t offset, * const u_intN_t *addr, size_t count)); * * Write `count' 1, 2, 4, or 8 byte quantities from the buffer provided * to bus space described by tag/handle starting at `offset'. */ #define __TSARMIPS_bus_space_write_region(BYTES,BITS) \ static __inline void __CONCAT(bus_space_write_region_,BYTES) \ (bus_space_tag_t, bus_space_handle_t, bus_size_t, \ __PB_TYPENAME(BITS) *, size_t); \ \ static __inline void \ __CONCAT(bus_space_write_region_,BYTES)( \ bus_space_tag_t t, \ bus_space_handle_t h, \ bus_size_t o, \ __PB_TYPENAME(BITS) *a, \ size_t c \ ) \ { \ \ while (c--) { \ __CONCAT(bus_space_write_,BYTES)(t, h, o, *a++); \ o += BYTES; \ } \ } __TSARMIPS_bus_space_write_region(1,8) __TSARMIPS_bus_space_write_region(2,16) __TSARMIPS_bus_space_write_region(4,32) #if 0 /* Cause a link error for bus_space_write_region_8 */ #define bus_space_write_region_8 \ !!! bus_space_write_region_8 unimplemented !!! #endif #undef __TSARMIPS_bus_space_write_region /* * void bus_space_set_multi_N __P((bus_space_tag_t tag, * bus_space_handle_t bsh, bus_size_t offset, u_intN_t val, * size_t count)); * * Write the 1, 2, 4, or 8 byte value `val' to bus space described * by tag/handle/offset `count' times. */ #define __TSARMIPS_bus_space_set_multi(BYTES,BITS) \ static __inline void __CONCAT(bus_space_set_multi_,BYTES) \ (bus_space_tag_t, bus_space_handle_t, bus_size_t, \ __PB_TYPENAME(BITS), size_t); \ \ static __inline void \ __CONCAT(bus_space_set_multi_,BYTES)( \ bus_space_tag_t t, \ bus_space_handle_t h, \ bus_size_t o, \ __PB_TYPENAME(BITS) v, \ size_t c \ ) \ { \ \ while (c--) \ __CONCAT(bus_space_write_,BYTES)(t, h, o, v); \ } __TSARMIPS_bus_space_set_multi(1,8) __TSARMIPS_bus_space_set_multi(2,16) __TSARMIPS_bus_space_set_multi(4,32) #if 0 /* Cause a link error for bus_space_set_multi_8 */ #define bus_space_set_multi_8 \ !!! bus_space_set_multi_8 unimplemented !!! #endif #undef __TSARMIPS_bus_space_set_multi /* * void bus_space_set_region_N __P((bus_space_tag_t tag, * bus_space_handle_t bsh, bus_size_t offset, u_intN_t val, * size_t count)); * * Write `count' 1, 2, 4, or 8 byte value `val' to bus space described * by tag/handle starting at `offset'. */ #define __TSARMIPS_bus_space_set_region(BYTES,BITS) \ static __inline void __CONCAT(bus_space_set_region_,BYTES) \ (bus_space_tag_t, bus_space_handle_t, bus_size_t, \ __PB_TYPENAME(BITS), size_t); \ \ static __inline void \ __CONCAT(bus_space_set_region_,BYTES)( \ bus_space_tag_t t, \ bus_space_handle_t h, \ bus_size_t o, \ __PB_TYPENAME(BITS) v, \ size_t c \ ) \ { \ \ while (c--) { \ __CONCAT(bus_space_write_,BYTES)(t, h, o, v); \ o += BYTES; \ } \ } __TSARMIPS_bus_space_set_region(1,8) __TSARMIPS_bus_space_set_region(2,16) __TSARMIPS_bus_space_set_region(4,32) #if 0 /* Cause a link error for bus_space_set_region_8 */ #define bus_space_set_region_8 \ !!! bus_space_set_region_8 unimplemented !!! #endif #undef __TSARMIPS_bus_space_set_region /* * void bus_space_copy_region_N __P((bus_space_tag_t tag, * bus_space_handle_t bsh1, bus_size_t off1, * bus_space_handle_t bsh2, bus_size_t off2, * bus_size_t count)); * * Copy `count' 1, 2, 4, or 8 byte values from bus space starting * at tag/bsh1/off1 to bus space starting at tag/bsh2/off2. */ #define __TSARMIPS_copy_region(BYTES) \ static __inline void __CONCAT(bus_space_copy_region_,BYTES) \ (bus_space_tag_t, \ bus_space_handle_t bsh1, bus_size_t off1, \ bus_space_handle_t bsh2, bus_size_t off2, \ bus_size_t count); \ \ static __inline void \ __CONCAT(bus_space_copy_region_,BYTES)( \ bus_space_tag_t t, \ bus_space_handle_t h1, \ bus_size_t o1, \ bus_space_handle_t h2, \ bus_size_t o2, \ bus_size_t c \ ) \ { \ bus_size_t o; \ \ if ((h1 + o1) >= (h2 + o2)) { \ /* src after dest: copy forward */ \ for (o = 0; c != 0; c--, o += BYTES) \ __CONCAT(bus_space_write_,BYTES)(t, h2, o2 + o, \ __CONCAT(bus_space_read_,BYTES)(t, h1, o1 + o)); \ } else { \ /* dest after src: copy backwards */ \ for (o = (c - 1) * BYTES; c != 0; c--, o -= BYTES) \ __CONCAT(bus_space_write_,BYTES)(t, h2, o2 + o, \ __CONCAT(bus_space_read_,BYTES)(t, h1, o1 + o)); \ } \ } __TSARMIPS_copy_region(1) __TSARMIPS_copy_region(2) __TSARMIPS_copy_region(4) #if 0 /* Cause a link error for bus_space_copy_region_8 */ #define bus_space_copy_region_8 \ !!! bus_space_copy_region_8 unimplemented !!! #endif #undef __TSARMIPS_copy_region /* * Bus read/write barrier methods. * * void bus_space_barrier __P((bus_space_tag_t tag, * bus_space_handle_t bsh, bus_size_t offset, * bus_size_t len, int flags)); * * On the MIPS, we just flush the write buffer. */ #define bus_space_barrier(t, h, o, l, f) \ ((void)((void)(t), (void)(h), (void)(o), (void)(l), (void)(f), \ wbflush())) #define BUS_SPACE_BARRIER_READ 0x01 /* force read barrier */ #define BUS_SPACE_BARRIER_WRITE 0x02 /* force write barrier */ #undef __PB_TYPENAME_PREFIX #undef __PB_TYPENAME #define BUS_SPACE_ALIGNED_POINTER(p, t) ALIGNED_POINTER(p, t) #include #include #ifdef _MIPS_BUS_DMA_PRIVATE int tsarmips_bus_dmamap_load(bus_dma_tag_t, bus_dmamap_t, void *, bus_size_t, struct proc *, int); int tsarmips_bus_dmamap_load_mbuf(bus_dma_tag_t, bus_dmamap_t, struct mbuf *, int); int tsarmips_bus_dmamap_load_uio(bus_dma_tag_t, bus_dmamap_t, struct uio *, int); void tsarmips_bus_dmamap_sync(bus_dma_tag_t, bus_dmamap_t, bus_addr_t, bus_size_t, int); int tsarmips_bus_dmamem_map(bus_dma_tag_t, bus_dma_segment_t *, int, size_t, void **, int ); void tsarmips_bus_dmamem_unmap(bus_dma_tag_t, void *, size_t); #undef _BUS_AVAIL_END #define _BUS_AVAIL_END mips_avail_end #endif /* _MIPS_BUS_DMA_PRIVATE */ #endif /* !_TSARMIPS_BUS_H_ */