diff options
author | nyan <nyan@FreeBSD.org> | 2001-10-06 16:27:21 +0000 |
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committer | nyan <nyan@FreeBSD.org> | 2001-10-06 16:27:21 +0000 |
commit | 93864b29c85e4d24da07bfd6c352e242cc457039 (patch) | |
tree | cc80326f09ea7cbf18e17ce8a8905e184400cd9a /sys/sys/bus_dma.h | |
parent | 9c40c48b35e106f89d0df657780deb8b385e23b3 (diff) | |
download | FreeBSD-src-93864b29c85e4d24da07bfd6c352e242cc457039.zip FreeBSD-src-93864b29c85e4d24da07bfd6c352e242cc457039.tar.gz |
- Moved the bus_dma declarations from bus_{at386,pc98}.h into bus_dma.h.
(bus_dma.h is repo-copied from bus_at386.h)
- Added '#include <machine/bus_dma.h>' into bus.h for backward compatibility.
Diffstat (limited to 'sys/sys/bus_dma.h')
-rw-r--r-- | sys/sys/bus_dma.h | 1085 |
1 files changed, 3 insertions, 1082 deletions
diff --git a/sys/sys/bus_dma.h b/sys/sys/bus_dma.h index 1bcca84..cb41b17 100644 --- a/sys/sys/bus_dma.h +++ b/sys/sys/bus_dma.h @@ -69,1088 +69,9 @@ */ /* $FreeBSD$ */ -#ifndef _I386_BUS_AT386_H_ -#define _I386_BUS_AT386_H_ +#ifndef _I386_BUS_DMA_H_ +#define _I386_BUS_DMA_H_ -#include <machine/cpufunc.h> - -/* - * To remain compatible with NetBSD's interface, default to both memio and - * pio when neither of them is defined. - */ -#if !defined(_I386_BUS_PIO_H_) && !defined(_I386_BUS_MEMIO_H_) -#define _I386_BUS_PIO_H_ -#define _I386_BUS_MEMIO_H_ -#endif - -/* - * Values for the i386 bus space tag, not to be used directly by MI code. - */ -#define I386_BUS_SPACE_IO 0 /* space is i/o space */ -#define I386_BUS_SPACE_MEM 1 /* space is mem space */ - -/* - * Bus address and size types - */ -typedef u_int bus_addr_t; -typedef u_int bus_size_t; - -#define BUS_SPACE_MAXSIZE_24BIT 0xFFFFFF -#define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF -#define BUS_SPACE_MAXSIZE (64 * 1024) /* Maximum supported size */ -#define BUS_SPACE_MAXADDR_24BIT 0xFFFFFF -#define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF -#define BUS_SPACE_MAXADDR 0xFFFFFFFF - -#define BUS_SPACE_UNRESTRICTED (~0) - -/* - * Access methods for bus resources and address space. - */ -typedef int bus_space_tag_t; -typedef u_int bus_space_handle_t; - -/* - * Map a region of device bus space into CPU virtual address space. - */ - -#define BUS_SPACE_MAP_CACHEABLE 0x01 -#define BUS_SPACE_MAP_LINEAR 0x02 - -int bus_space_map(bus_space_tag_t t, bus_addr_t addr, bus_size_t size, - int flags, bus_space_handle_t *bshp); - -/* - * Unmap a region of device bus space. - */ - -void bus_space_unmap(bus_space_tag_t t, bus_space_handle_t bsh, - bus_size_t size); - -/* - * Get a new handle for a subregion of an already-mapped area of bus space. - */ - -int bus_space_subregion(bus_space_tag_t t, bus_space_handle_t bsh, - bus_size_t offset, bus_size_t size, - bus_space_handle_t *nbshp); - -/* - * Allocate a region of memory that is accessible to devices in bus space. - */ - -int bus_space_alloc(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); - -/* - * Free a region of bus space accessible memory. - */ - -void bus_space_free(bus_space_tag_t t, bus_space_handle_t bsh, - bus_size_t size); - -#if defined(_I386_BUS_PIO_H_) || defined(_I386_BUS_MEMIO_H_) - -/* - * Read a 1, 2, 4, or 8 byte quantity from bus space - * described by tag/handle/offset. - */ -static __inline u_int8_t bus_space_read_1(bus_space_tag_t tag, - bus_space_handle_t handle, - bus_size_t offset); - -static __inline u_int16_t bus_space_read_2(bus_space_tag_t tag, - bus_space_handle_t handle, - bus_size_t offset); - -static __inline u_int32_t bus_space_read_4(bus_space_tag_t tag, - bus_space_handle_t handle, - bus_size_t offset); - -static __inline u_int8_t -bus_space_read_1(bus_space_tag_t tag, bus_space_handle_t handle, - bus_size_t offset) -{ -#if defined (_I386_BUS_PIO_H_) -#if defined (_I386_BUS_MEMIO_H_) - if (tag == I386_BUS_SPACE_IO) -#endif - return (inb(handle + offset)); -#endif -#if defined (_I386_BUS_MEMIO_H_) - return (*(volatile u_int8_t *)(handle + offset)); -#endif -} - -static __inline u_int16_t -bus_space_read_2(bus_space_tag_t tag, bus_space_handle_t handle, - bus_size_t offset) -{ -#if defined(_I386_BUS_PIO_H_) -#if defined(_I386_BUS_MEMIO_H_) - if (tag == I386_BUS_SPACE_IO) -#endif - return (inw(handle + offset)); -#endif -#if defined(_I386_BUS_MEMIO_H_) - return (*(volatile u_int16_t *)(handle + offset)); -#endif -} - -static __inline u_int32_t -bus_space_read_4(bus_space_tag_t tag, bus_space_handle_t handle, - bus_size_t offset) -{ -#if defined(_I386_BUS_PIO_H_) -#if defined(_I386_BUS_MEMIO_H_) - if (tag == I386_BUS_SPACE_IO) -#endif - return (inl(handle + offset)); -#endif -#if defined(_I386_BUS_MEMIO_H_) - return (*(volatile u_int32_t *)(handle + offset)); -#endif -} - -#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 - -/* - * Read `count' 1, 2, 4, or 8 byte quantities from bus space - * described by tag/handle/offset and copy into buffer provided. - */ -static __inline void bus_space_read_multi_1(bus_space_tag_t tag, - bus_space_handle_t bsh, - bus_size_t offset, u_int8_t *addr, - size_t count); - -static __inline void bus_space_read_multi_2(bus_space_tag_t tag, - bus_space_handle_t bsh, - bus_size_t offset, u_int16_t *addr, - size_t count); - -static __inline void bus_space_read_multi_4(bus_space_tag_t tag, - bus_space_handle_t bsh, - bus_size_t offset, u_int32_t *addr, - size_t count); - -static __inline void -bus_space_read_multi_1(bus_space_tag_t tag, bus_space_handle_t bsh, - bus_size_t offset, u_int8_t *addr, size_t count) -{ -#if defined(_I386_BUS_PIO_H_) -#if defined(_I386_BUS_MEMIO_H_) - if (tag == I386_BUS_SPACE_IO) -#endif - insb(bsh + offset, addr, count); -#endif -#if defined(_I386_BUS_MEMIO_H_) -#if defined(_I386_BUS_PIO_H_) - else -#endif - { - __asm __volatile(" \n\ - cld \n\ - 1: movb (%2),%%al \n\ - stosb \n\ - loop 1b" : - "=D" (addr), "=c" (count) : - "r" (bsh + offset), "0" (addr), "1" (count) : - "%eax", "memory"); - } -#endif -} - -static __inline void -bus_space_read_multi_2(bus_space_tag_t tag, bus_space_handle_t bsh, - bus_size_t offset, u_int16_t *addr, size_t count) -{ -#if defined(_I386_BUS_PIO_H_) -#if defined(_I386_BUS_MEMIO_H_) - if (tag == I386_BUS_SPACE_IO) -#endif - insw(bsh + offset, addr, count); -#endif -#if defined(_I386_BUS_MEMIO_H_) -#if defined(_I386_BUS_PIO_H_) - else -#endif - { - __asm __volatile(" \n\ - cld \n\ - 1: movw (%2),%%ax \n\ - stosw \n\ - loop 1b" : - "=D" (addr), "=c" (count) : - "r" (bsh + offset), "0" (addr), "1" (count) : - "%eax", "memory"); - } -#endif -} - -static __inline void -bus_space_read_multi_4(bus_space_tag_t tag, bus_space_handle_t bsh, - bus_size_t offset, u_int32_t *addr, size_t count) -{ -#if defined(_I386_BUS_PIO_H_) -#if defined(_I386_BUS_MEMIO_H_) - if (tag == I386_BUS_SPACE_IO) -#endif - insl(bsh + offset, addr, count); -#endif -#if defined(_I386_BUS_MEMIO_H_) -#if defined(_I386_BUS_PIO_H_) - else -#endif - { - __asm __volatile(" \n\ - cld \n\ - 1: movl (%2),%%eax \n\ - stosl \n\ - loop 1b" : - "=D" (addr), "=c" (count) : - "r" (bsh + offset), "0" (addr), "1" (count) : - "%eax", "memory"); - } -#endif -} - -#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 - -/* - * 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. - */ -static __inline void bus_space_read_region_1(bus_space_tag_t tag, - bus_space_handle_t bsh, - bus_size_t offset, u_int8_t *addr, - size_t count); - -static __inline void bus_space_read_region_2(bus_space_tag_t tag, - bus_space_handle_t bsh, - bus_size_t offset, u_int16_t *addr, - size_t count); - -static __inline void bus_space_read_region_4(bus_space_tag_t tag, - bus_space_handle_t bsh, - bus_size_t offset, u_int32_t *addr, - size_t count); - - -static __inline void -bus_space_read_region_1(bus_space_tag_t tag, bus_space_handle_t bsh, - bus_size_t offset, u_int8_t *addr, size_t count) -{ -#if defined(_I386_BUS_PIO_H_) -#if defined(_I386_BUS_MEMIO_H_) - if (tag == I386_BUS_SPACE_IO) -#endif - { - int _port_ = bsh + offset; \ - __asm __volatile(" \n\ - cld \n\ - 1: inb %w2,%%al \n\ - stosb \n\ - incl %2 \n\ - loop 1b" : - "=D" (addr), "=c" (count), "=d" (_port_) : - "0" (addr), "1" (count), "2" (_port_) : - "%eax", "memory", "cc"); - } -#endif -#if defined(_I386_BUS_MEMIO_H_) -#if defined(_I386_BUS_PIO_H_) - else -#endif - { - int _port_ = bsh + offset; \ - __asm __volatile(" \n\ - cld \n\ - repne \n\ - movsb" : - "=D" (addr), "=c" (count), "=S" (_port_) : - "0" (addr), "1" (count), "2" (_port_) : - "memory", "cc"); - } -#endif -} - -static __inline void -bus_space_read_region_2(bus_space_tag_t tag, bus_space_handle_t bsh, - bus_size_t offset, u_int16_t *addr, size_t count) -{ -#if defined(_I386_BUS_PIO_H_) -#if defined(_I386_BUS_MEMIO_H_) - if (tag == I386_BUS_SPACE_IO) -#endif - { - int _port_ = bsh + offset; \ - __asm __volatile(" \n\ - cld \n\ - 1: inw %w2,%%ax \n\ - stosw \n\ - addl $2,%2 \n\ - loop 1b" : - "=D" (addr), "=c" (count), "=d" (_port_) : - "0" (addr), "1" (count), "2" (_port_) : - "%eax", "memory", "cc"); - } -#endif -#if defined(_I386_BUS_MEMIO_H_) -#if defined(_I386_BUS_PIO_H_) - else -#endif - { - int _port_ = bsh + offset; \ - __asm __volatile(" \n\ - cld \n\ - repne \n\ - movsw" : - "=D" (addr), "=c" (count), "=S" (_port_) : - "0" (addr), "1" (count), "2" (_port_) : - "memory", "cc"); - } -#endif -} - -static __inline void -bus_space_read_region_4(bus_space_tag_t tag, bus_space_handle_t bsh, - bus_size_t offset, u_int32_t *addr, size_t count) -{ -#if defined(_I386_BUS_PIO_H_) -#if defined(_I386_BUS_MEMIO_H_) - if (tag == I386_BUS_SPACE_IO) -#endif - { - int _port_ = bsh + offset; \ - __asm __volatile(" \n\ - cld \n\ - 1: inl %w2,%%eax \n\ - stosl \n\ - addl $4,%2 \n\ - loop 1b" : - "=D" (addr), "=c" (count), "=d" (_port_) : - "0" (addr), "1" (count), "2" (_port_) : - "%eax", "memory", "cc"); - } -#endif -#if defined(_I386_BUS_MEMIO_H_) -#if defined(_I386_BUS_PIO_H_) - else -#endif - { - int _port_ = bsh + offset; \ - __asm __volatile(" \n\ - cld \n\ - repne \n\ - movsl" : - "=D" (addr), "=c" (count), "=S" (_port_) : - "0" (addr), "1" (count), "2" (_port_) : - "memory", "cc"); - } -#endif -} - -#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 - -/* - * Write the 1, 2, 4, or 8 byte value `value' to bus space - * described by tag/handle/offset. - */ - -static __inline void bus_space_write_1(bus_space_tag_t tag, - bus_space_handle_t bsh, - bus_size_t offset, u_int8_t value); - -static __inline void bus_space_write_2(bus_space_tag_t tag, - bus_space_handle_t bsh, - bus_size_t offset, u_int16_t value); - -static __inline void bus_space_write_4(bus_space_tag_t tag, - bus_space_handle_t bsh, - bus_size_t offset, u_int32_t value); - -static __inline void -bus_space_write_1(bus_space_tag_t tag, bus_space_handle_t bsh, - bus_size_t offset, u_int8_t value) -{ -#if defined(_I386_BUS_PIO_H_) -#if defined(_I386_BUS_MEMIO_H_) - if (tag == I386_BUS_SPACE_IO) -#endif - outb(bsh + offset, value); -#endif -#if defined(_I386_BUS_MEMIO_H_) -#if defined(_I386_BUS_PIO_H_) - else -#endif - *(volatile u_int8_t *)(bsh + offset) = value; -#endif -} - -static __inline void -bus_space_write_2(bus_space_tag_t tag, bus_space_handle_t bsh, - bus_size_t offset, u_int16_t value) -{ -#if defined(_I386_BUS_PIO_H_) -#if defined(_I386_BUS_MEMIO_H_) - if (tag == I386_BUS_SPACE_IO) -#endif - outw(bsh + offset, value); -#endif -#if defined(_I386_BUS_MEMIO_H_) -#if defined(_I386_BUS_PIO_H_) - else -#endif - *(volatile u_int16_t *)(bsh + offset) = value; -#endif -} - -static __inline void -bus_space_write_4(bus_space_tag_t tag, bus_space_handle_t bsh, - bus_size_t offset, u_int32_t value) -{ -#if defined(_I386_BUS_PIO_H_) -#if defined(_I386_BUS_MEMIO_H_) - if (tag == I386_BUS_SPACE_IO) -#endif - outl(bsh + offset, value); -#endif -#if defined(_I386_BUS_MEMIO_H_) -#if defined(_I386_BUS_PIO_H_) - else -#endif - *(volatile u_int32_t *)(bsh + offset) = value; -#endif -} - -#if 0 /* Cause a link error for bus_space_write_8 */ -#define bus_space_write_8 !!! bus_space_write_8 not implemented !!! -#endif - -/* - * Write `count' 1, 2, 4, or 8 byte quantities from the buffer - * provided to bus space described by tag/handle/offset. - */ - -static __inline void bus_space_write_multi_1(bus_space_tag_t tag, - bus_space_handle_t bsh, - bus_size_t offset, - const u_int8_t *addr, - size_t count); -static __inline void bus_space_write_multi_2(bus_space_tag_t tag, - bus_space_handle_t bsh, - bus_size_t offset, - const u_int16_t *addr, - size_t count); - -static __inline void bus_space_write_multi_4(bus_space_tag_t tag, - bus_space_handle_t bsh, - bus_size_t offset, - const u_int32_t *addr, - size_t count); - -static __inline void -bus_space_write_multi_1(bus_space_tag_t tag, bus_space_handle_t bsh, - bus_size_t offset, const u_int8_t *addr, size_t count) -{ -#if defined(_I386_BUS_PIO_H_) -#if defined(_I386_BUS_MEMIO_H_) - if (tag == I386_BUS_SPACE_IO) -#endif - outsb(bsh + offset, addr, count); -#endif -#if defined(_I386_BUS_MEMIO_H_) -#if defined(_I386_BUS_PIO_H_) - else -#endif - { - __asm __volatile(" \n\ - cld \n\ - 1: lodsb \n\ - movb %%al,(%2) \n\ - loop 1b" : - "=S" (addr), "=c" (count) : - "r" (bsh + offset), "0" (addr), "1" (count) : - "%eax", "memory", "cc"); - } -#endif -} - -static __inline void -bus_space_write_multi_2(bus_space_tag_t tag, bus_space_handle_t bsh, - bus_size_t offset, const u_int16_t *addr, size_t count) -{ -#if defined(_I386_BUS_PIO_H_) -#if defined(_I386_BUS_MEMIO_H_) - if (tag == I386_BUS_SPACE_IO) -#endif - outsw(bsh + offset, addr, count); -#endif -#if defined(_I386_BUS_MEMIO_H_) -#if defined(_I386_BUS_PIO_H_) - else -#endif - { - __asm __volatile(" \n\ - cld \n\ - 1: lodsw \n\ - movw %%ax,(%2) \n\ - loop 1b" : - "=S" (addr), "=c" (count) : - "r" (bsh + offset), "0" (addr), "1" (count) : - "%eax", "memory", "cc"); - } -#endif -} - -static __inline void -bus_space_write_multi_4(bus_space_tag_t tag, bus_space_handle_t bsh, - bus_size_t offset, const u_int32_t *addr, size_t count) -{ -#if defined(_I386_BUS_PIO_H_) -#if defined(_I386_BUS_MEMIO_H_) - if (tag == I386_BUS_SPACE_IO) -#endif - outsl(bsh + offset, addr, count); -#endif -#if defined(_I386_BUS_MEMIO_H_) -#if defined(_I386_BUS_PIO_H_) - else -#endif - { - __asm __volatile(" \n\ - cld \n\ - 1: lodsl \n\ - movl %%eax,(%2) \n\ - loop 1b" : - "=S" (addr), "=c" (count) : - "r" (bsh + offset), "0" (addr), "1" (count) : - "%eax", "memory", "cc"); - } -#endif -} - -#if 0 /* Cause a link error for bus_space_write_multi_8 */ -#define bus_space_write_multi_8(t, h, o, a, c) \ - !!! bus_space_write_multi_8 unimplemented !!! -#endif - -/* - * Write `count' 1, 2, 4, or 8 byte quantities from the buffer provided - * to bus space described by tag/handle starting at `offset'. - */ - -static __inline void bus_space_write_region_1(bus_space_tag_t tag, - bus_space_handle_t bsh, - bus_size_t offset, - const u_int8_t *addr, - size_t count); -static __inline void bus_space_write_region_2(bus_space_tag_t tag, - bus_space_handle_t bsh, - bus_size_t offset, - const u_int16_t *addr, - size_t count); -static __inline void bus_space_write_region_4(bus_space_tag_t tag, - bus_space_handle_t bsh, - bus_size_t offset, - const u_int32_t *addr, - size_t count); - -static __inline void -bus_space_write_region_1(bus_space_tag_t tag, bus_space_handle_t bsh, - bus_size_t offset, const u_int8_t *addr, size_t count) -{ -#if defined(_I386_BUS_PIO_H_) -#if defined(_I386_BUS_MEMIO_H_) - if (tag == I386_BUS_SPACE_IO) -#endif - { - int _port_ = bsh + offset; \ - __asm __volatile(" \n\ - cld \n\ - 1: lodsb \n\ - outb %%al,%w0 \n\ - incl %0 \n\ - loop 1b" : - "=d" (_port_), "=S" (addr), "=c" (count) : - "0" (_port_), "1" (addr), "2" (count) : - "%eax", "memory", "cc"); - } -#endif -#if defined(_I386_BUS_MEMIO_H_) -#if defined(_I386_BUS_PIO_H_) - else -#endif - { - int _port_ = bsh + offset; \ - __asm __volatile(" \n\ - cld \n\ - repne \n\ - movsb" : - "=D" (_port_), "=S" (addr), "=c" (count) : - "0" (_port_), "1" (addr), "2" (count) : - "memory", "cc"); - } -#endif -} - -static __inline void -bus_space_write_region_2(bus_space_tag_t tag, bus_space_handle_t bsh, - bus_size_t offset, const u_int16_t *addr, size_t count) -{ -#if defined(_I386_BUS_PIO_H_) -#if defined(_I386_BUS_MEMIO_H_) - if (tag == I386_BUS_SPACE_IO) -#endif - { - int _port_ = bsh + offset; \ - __asm __volatile(" \n\ - cld \n\ - 1: lodsw \n\ - outw %%ax,%w0 \n\ - addl $2,%0 \n\ - loop 1b" : - "=d" (_port_), "=S" (addr), "=c" (count) : - "0" (_port_), "1" (addr), "2" (count) : - "%eax", "memory", "cc"); - } -#endif -#if defined(_I386_BUS_MEMIO_H_) -#if defined(_I386_BUS_PIO_H_) - else -#endif - { - int _port_ = bsh + offset; \ - __asm __volatile(" \n\ - cld \n\ - repne \n\ - movsw" : - "=D" (_port_), "=S" (addr), "=c" (count) : - "0" (_port_), "1" (addr), "2" (count) : - "memory", "cc"); - } -#endif -} - -static __inline void -bus_space_write_region_4(bus_space_tag_t tag, bus_space_handle_t bsh, - bus_size_t offset, const u_int32_t *addr, size_t count) -{ -#if defined(_I386_BUS_PIO_H_) -#if defined(_I386_BUS_MEMIO_H_) - if (tag == I386_BUS_SPACE_IO) -#endif - { - int _port_ = bsh + offset; \ - __asm __volatile(" \n\ - cld \n\ - 1: lodsl \n\ - outl %%eax,%w0 \n\ - addl $4,%0 \n\ - loop 1b" : - "=d" (_port_), "=S" (addr), "=c" (count) : - "0" (_port_), "1" (addr), "2" (count) : - "%eax", "memory", "cc"); - } -#endif -#if defined(_I386_BUS_MEMIO_H_) -#if defined(_I386_BUS_PIO_H_) - else -#endif - { - int _port_ = bsh + offset; \ - __asm __volatile(" \n\ - cld \n\ - repne \n\ - movsl" : - "=D" (_port_), "=S" (addr), "=c" (count) : - "0" (_port_), "1" (addr), "2" (count) : - "memory", "cc"); - } -#endif -} - -#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 - -/* - * Write the 1, 2, 4, or 8 byte value `val' to bus space described - * by tag/handle/offset `count' times. - */ - -static __inline void bus_space_set_multi_1(bus_space_tag_t tag, - bus_space_handle_t bsh, - bus_size_t offset, - u_int8_t value, size_t count); -static __inline void bus_space_set_multi_2(bus_space_tag_t tag, - bus_space_handle_t bsh, - bus_size_t offset, - u_int16_t value, size_t count); -static __inline void bus_space_set_multi_4(bus_space_tag_t tag, - bus_space_handle_t bsh, - bus_size_t offset, - u_int32_t value, size_t count); - -static __inline void -bus_space_set_multi_1(bus_space_tag_t tag, bus_space_handle_t bsh, - bus_size_t offset, u_int8_t value, size_t count) -{ - bus_addr_t addr = bsh + offset; - -#if defined(_I386_BUS_PIO_H_) -#if defined(_I386_BUS_MEMIO_H_) - if (tag == I386_BUS_SPACE_IO) -#endif - while (count--) - outb(addr, value); -#endif -#if defined(_I386_BUS_MEMIO_H_) -#if defined(_I386_BUS_PIO_H_) - else -#endif - while (count--) - *(volatile u_int8_t *)(addr) = value; -#endif -} - -static __inline void -bus_space_set_multi_2(bus_space_tag_t tag, bus_space_handle_t bsh, - bus_size_t offset, u_int16_t value, size_t count) -{ - bus_addr_t addr = bsh + offset; - -#if defined(_I386_BUS_PIO_H_) -#if defined(_I386_BUS_MEMIO_H_) - if (tag == I386_BUS_SPACE_IO) -#endif - while (count--) - outw(addr, value); -#endif -#if defined(_I386_BUS_MEMIO_H_) -#if defined(_I386_BUS_PIO_H_) - else -#endif - while (count--) - *(volatile u_int16_t *)(addr) = value; -#endif -} - -static __inline void -bus_space_set_multi_4(bus_space_tag_t tag, bus_space_handle_t bsh, - bus_size_t offset, u_int32_t value, size_t count) -{ - bus_addr_t addr = bsh + offset; - -#if defined(_I386_BUS_PIO_H_) -#if defined(_I386_BUS_MEMIO_H_) - if (tag == I386_BUS_SPACE_IO) -#endif - while (count--) - outl(addr, value); -#endif -#if defined(_I386_BUS_MEMIO_H_) -#if defined(_I386_BUS_PIO_H_) - else -#endif - while (count--) - *(volatile u_int32_t *)(addr) = value; -#endif -} - -#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 - -/* - * Write `count' 1, 2, 4, or 8 byte value `val' to bus space described - * by tag/handle starting at `offset'. - */ - -static __inline void bus_space_set_region_1(bus_space_tag_t tag, - bus_space_handle_t bsh, - bus_size_t offset, u_int8_t value, - size_t count); -static __inline void bus_space_set_region_2(bus_space_tag_t tag, - bus_space_handle_t bsh, - bus_size_t offset, u_int16_t value, - size_t count); -static __inline void bus_space_set_region_4(bus_space_tag_t tag, - bus_space_handle_t bsh, - bus_size_t offset, u_int32_t value, - size_t count); - -static __inline void -bus_space_set_region_1(bus_space_tag_t tag, bus_space_handle_t bsh, - bus_size_t offset, u_int8_t value, size_t count) -{ - bus_addr_t addr = bsh + offset; - -#if defined(_I386_BUS_PIO_H_) -#if defined(_I386_BUS_MEMIO_H_) - if (tag == I386_BUS_SPACE_IO) -#endif - for (; count != 0; count--, addr++) - outb(addr, value); -#endif -#if defined(_I386_BUS_MEMIO_H_) -#if defined(_I386_BUS_PIO_H_) - else -#endif - for (; count != 0; count--, addr++) - *(volatile u_int8_t *)(addr) = value; -#endif -} - -static __inline void -bus_space_set_region_2(bus_space_tag_t tag, bus_space_handle_t bsh, - bus_size_t offset, u_int16_t value, size_t count) -{ - bus_addr_t addr = bsh + offset; - -#if defined(_I386_BUS_PIO_H_) -#if defined(_I386_BUS_MEMIO_H_) - if (tag == I386_BUS_SPACE_IO) -#endif - for (; count != 0; count--, addr += 2) - outw(addr, value); -#endif -#if defined(_I386_BUS_MEMIO_H_) -#if defined(_I386_BUS_PIO_H_) - else -#endif - for (; count != 0; count--, addr += 2) - *(volatile u_int16_t *)(addr) = value; -#endif -} - -static __inline void -bus_space_set_region_4(bus_space_tag_t tag, bus_space_handle_t bsh, - bus_size_t offset, u_int32_t value, size_t count) -{ - bus_addr_t addr = bsh + offset; - -#if defined(_I386_BUS_PIO_H_) -#if defined(_I386_BUS_MEMIO_H_) - if (tag == I386_BUS_SPACE_IO) -#endif - for (; count != 0; count--, addr += 4) - outl(addr, value); -#endif -#if defined(_I386_BUS_MEMIO_H_) -#if defined(_I386_BUS_PIO_H_) - else -#endif - for (; count != 0; count--, addr += 4) - *(volatile u_int32_t *)(addr) = value; -#endif -} - -#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 - -/* - * 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. - */ - -static __inline void bus_space_copy_region_1(bus_space_tag_t tag, - bus_space_handle_t bsh1, - bus_size_t off1, - bus_space_handle_t bsh2, - bus_size_t off2, size_t count); - -static __inline void bus_space_copy_region_2(bus_space_tag_t tag, - bus_space_handle_t bsh1, - bus_size_t off1, - bus_space_handle_t bsh2, - bus_size_t off2, size_t count); - -static __inline void bus_space_copy_region_4(bus_space_tag_t tag, - bus_space_handle_t bsh1, - bus_size_t off1, - bus_space_handle_t bsh2, - bus_size_t off2, size_t count); - -static __inline void -bus_space_copy_region_1(bus_space_tag_t tag, bus_space_handle_t bsh1, - bus_size_t off1, bus_space_handle_t bsh2, - bus_size_t off2, size_t count) -{ - bus_addr_t addr1 = bsh1 + off1; - bus_addr_t addr2 = bsh2 + off2; - -#if defined(_I386_BUS_PIO_H_) -#if defined(_I386_BUS_MEMIO_H_) - if (tag == I386_BUS_SPACE_IO) -#endif - { - if (addr1 >= addr2) { - /* src after dest: copy forward */ - for (; count != 0; count--, addr1++, addr2++) - outb(addr2, inb(addr1)); - } else { - /* dest after src: copy backwards */ - for (addr1 += (count - 1), addr2 += (count - 1); - count != 0; count--, addr1--, addr2--) - outb(addr2, inb(addr1)); - } - } -#endif -#if defined(_I386_BUS_MEMIO_H_) -#if defined(_I386_BUS_PIO_H_) - else -#endif - { - if (addr1 >= addr2) { - /* src after dest: copy forward */ - for (; count != 0; count--, addr1++, addr2++) - *(volatile u_int8_t *)(addr2) = - *(volatile u_int8_t *)(addr1); - } else { - /* dest after src: copy backwards */ - for (addr1 += (count - 1), addr2 += (count - 1); - count != 0; count--, addr1--, addr2--) - *(volatile u_int8_t *)(addr2) = - *(volatile u_int8_t *)(addr1); - } - } -#endif -} - -static __inline void -bus_space_copy_region_2(bus_space_tag_t tag, bus_space_handle_t bsh1, - bus_size_t off1, bus_space_handle_t bsh2, - bus_size_t off2, size_t count) -{ - bus_addr_t addr1 = bsh1 + off1; - bus_addr_t addr2 = bsh2 + off2; - -#if defined(_I386_BUS_PIO_H_) -#if defined(_I386_BUS_MEMIO_H_) - if (tag == I386_BUS_SPACE_IO) -#endif - { - if (addr1 >= addr2) { - /* src after dest: copy forward */ - for (; count != 0; count--, addr1 += 2, addr2 += 2) - outw(addr2, inw(addr1)); - } else { - /* dest after src: copy backwards */ - for (addr1 += 2 * (count - 1), addr2 += 2 * (count - 1); - count != 0; count--, addr1 -= 2, addr2 -= 2) - outw(addr2, inw(addr1)); - } - } -#endif -#if defined(_I386_BUS_MEMIO_H_) -#if defined(_I386_BUS_PIO_H_) - else -#endif - { - if (addr1 >= addr2) { - /* src after dest: copy forward */ - for (; count != 0; count--, addr1 += 2, addr2 += 2) - *(volatile u_int16_t *)(addr2) = - *(volatile u_int16_t *)(addr1); - } else { - /* dest after src: copy backwards */ - for (addr1 += 2 * (count - 1), addr2 += 2 * (count - 1); - count != 0; count--, addr1 -= 2, addr2 -= 2) - *(volatile u_int16_t *)(addr2) = - *(volatile u_int16_t *)(addr1); - } - } -#endif -} - -static __inline void -bus_space_copy_region_4(bus_space_tag_t tag, bus_space_handle_t bsh1, - bus_size_t off1, bus_space_handle_t bsh2, - bus_size_t off2, size_t count) -{ - bus_addr_t addr1 = bsh1 + off1; - bus_addr_t addr2 = bsh2 + off2; - -#if defined(_I386_BUS_PIO_H_) -#if defined(_I386_BUS_MEMIO_H_) - if (tag == I386_BUS_SPACE_IO) -#endif - { - if (addr1 >= addr2) { - /* src after dest: copy forward */ - for (; count != 0; count--, addr1 += 4, addr2 += 4) - outl(addr2, inl(addr1)); - } else { - /* dest after src: copy backwards */ - for (addr1 += 4 * (count - 1), addr2 += 4 * (count - 1); - count != 0; count--, addr1 -= 4, addr2 -= 4) - outl(addr2, inl(addr1)); - } - } -#endif -#if defined(_I386_BUS_MEMIO_H_) -#if defined(_I386_BUS_PIO_H_) - else -#endif - { - if (addr1 >= addr2) { - /* src after dest: copy forward */ - for (; count != 0; count--, addr1 += 4, addr2 += 4) - *(volatile u_int32_t *)(addr2) = - *(volatile u_int32_t *)(addr1); - } else { - /* dest after src: copy backwards */ - for (addr1 += 4 * (count - 1), addr2 += 4 * (count - 1); - count != 0; count--, addr1 -= 4, addr2 -= 4) - *(volatile u_int32_t *)(addr2) = - *(volatile u_int32_t *)(addr1); - } - } -#endif -} - -#endif /* defined(_I386_BUS_PIO_H_) || defined(_I386_MEM_IO_H_) */ - -#if 0 /* Cause a link error for bus_space_copy_8 */ -#define bus_space_copy_region_8 !!! bus_space_copy_region_8 unimplemented !!! -#endif - -/* - * Bus read/write barrier methods. - * - * void bus_space_barrier(bus_space_tag_t tag, bus_space_handle_t bsh, - * bus_size_t offset, bus_size_t len, int flags); - * - * - * Note that BUS_SPACE_BARRIER_WRITE doesn't do anything other than - * prevent reordering by the compiler; all Intel x86 processors currently - * retire operations outside the CPU in program order. - */ -#define BUS_SPACE_BARRIER_READ 0x01 /* force read barrier */ -#define BUS_SPACE_BARRIER_WRITE 0x02 /* force write barrier */ - -static __inline void -bus_space_barrier(bus_space_tag_t tag, bus_space_handle_t bsh, - bus_size_t offset, bus_size_t len, int flags) -{ - if (flags & BUS_SPACE_BARRIER_READ) - __asm __volatile("lock; addl $0,0(%%esp)" : : : "memory"); - else - __asm __volatile("" : : : "memory"); -} - /* * Flags used in various bus DMA methods. */ @@ -1297,4 +218,4 @@ void _bus_dmamap_unload(bus_dma_tag_t dmat, bus_dmamap_t map); if ((dmamap) != NULL) \ _bus_dmamap_unload(dmat, dmamap) -#endif /* _I386_BUS_AT386_H_ */ +#endif /* _I386_BUS_DMA_H_ */ |