diff options
| -rw-r--r-- | sys/arch/i386/include/bus.h | 215 |
1 files changed, 209 insertions, 6 deletions
diff --git a/sys/arch/i386/include/bus.h b/sys/arch/i386/include/bus.h index 0cca2d9e628..e4410efe7ab 100644 --- a/sys/arch/i386/include/bus.h +++ b/sys/arch/i386/include/bus.h @@ -1,4 +1,4 @@ -/* $OpenBSD: bus.h,v 1.7 1996/11/28 23:37:38 niklas Exp $ */ +/* $OpenBSD: bus.h,v 1.8 1997/07/05 19:29:51 mickey Exp $ */ /* $NetBSD: bus.h,v 1.5 1996/10/21 22:26:19 thorpej Exp $ */ /* @@ -449,23 +449,151 @@ void bus_space_free __P((bus_space_tag_t t, bus_space_handle_t bsh, /* * void bus_space_set_multi_N __P((bus_space_tag_t tag, - * bus_space_handle_t bsh, u_intN_t val, size_t count)); + * 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. */ - /* XXX IMPLEMENT bus_space_set_multi_N() XXX */ +#define bus_space_set_multi_1(t, h, o, v, c) do { \ + if ((t) == I386_BUS_SPACE_IO) { \ + __asm __volatile(" \ + cld ; \ + 1: outb %%al,%w0 ; \ + loop 1b" : \ + : \ + "d" ((h) + (o)), "c" ((c)), "a" ((v)) : \ + "%edx", "%ecx", "%eax"); \ + } else { \ + __asm __volatile(" \ + cld ; \ + 1: movb %%al,(%0) ; \ + loop 1b" : \ + : \ + "D" ((h) + (o)), "c" ((c)), "a" ((v)) : \ + "%edi", "%ecx", "%eax"); \ + } \ +} while (0) + +#define bus_space_set_multi_2(t, h, o, v, c) do { \ + if ((t) == I386_BUS_SPACE_IO) { \ + __asm __volatile(" \ + cld ; \ + 1: outw %%ax,%w0 ; \ + loop 1b" : \ + : \ + "d" ((h) + (o)), "c" ((c)), "a" ((v)) : \ + "%edx", "%ecx", "%eax"); \ + } else { \ + __asm __volatile(" \ + cld ; \ + 1: movw %%ax,(%0) ; \ + loop 1b" : \ + : \ + "D" ((h) + (o)), "c" ((c)), "a" ((v)) : \ + "%edi", "%ecx", "%eax"); \ + } \ +} while (0) + +#define bus_space_set_multi_4(t, h, o, v, c) do { \ + if ((t) == I386_BUS_SPACE_IO) { \ + __asm __volatile(" \ + cld ; \ + 1: outl %%eax,%w0 ; \ + loop 1b" : \ + : \ + "d" ((h) + (o)), "c" ((c)), "a" ((v)) : \ + "%edx", "%ecx", "%eax"); \ + } else { \ + __asm __volatile(" \ + cld ; \ + 1: movl %%eax,(%0) ; \ + loop 1b" : \ + : \ + "D" ((h) + (o)), "c" ((c)), "a" ((v)) : \ + "%edi", "%ecx", "%eax"); \ + } \ +} while (0) + +#if 0 /* Cause a link error for bus_space_set_region_8 */ +#define bus_space_set_multi_8 \ + !!! bus_space_set_multi_8 unimplemented !!! +#endif /* * void bus_space_set_region_N __P((bus_space_tag_t tag, - * bus_space_handle_t bsh, u_intN_t val, size_t count)); + * 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'. */ - /* XXX IMPLEMENT bus_space_set_region_N() XXX */ +#define bus_space_set_region_1(t, h, o, v, c) do { \ + if ((t) == I386_BUS_SPACE_IO) { \ + __asm __volatile(" \ + 1: outb %%al,%w0 ; \ + incl %0 ; \ + loop 1b" : \ + : \ + "d" ((h) + (o)), "c" ((c)), "a" ((v)) : \ + "%edx", "%ecx", "%eax"); \ + } else { \ + __asm __volatile(" \ + cld ; \ + repne ; \ + stosb" : \ + : \ + "D" ((h) + (o)), "c" ((c)), "a" ((v)) : \ + "%edi", "%ecx", "%eax", "memory"); \ + } \ +} while (0) + +#define bus_space_set_region_2(t, h, o, v, c) do { \ + if ((t) == I386_BUS_SPACE_IO) { \ + __asm __volatile(" \ + 1: outw %%ax,%w0 ; \ + addl $2, %0 ; \ + loop 1b" : \ + : \ + "d" ((h) + (o)), "c" ((c)), "a" ((v)) : \ + "%edx", "%ecx", "%eax"); \ + } else { \ + __asm __volatile(" \ + cld ; \ + repne ; \ + stosw" : \ + : \ + "D" ((h) + (o)), "c" ((c)), "a" ((v)) : \ + "%edi", "%ecx", "%eax", "memory"); \ + } \ +} while (0) + +#define bus_space_set_region_4(t, h, o, v, c) do { \ + if ((t) == I386_BUS_SPACE_IO) { \ + __asm __volatile(" \ + 1: outl %%eax,%w0 ; \ + addl $4, %0 ; \ + loop 1b" : \ + : \ + "d" ((h) + (o)), "c" ((c)), "a" ((v)) : \ + "%edx", "%ecx", "%eax"); \ + } else { \ + __asm __volatile(" \ + cld ; \ + repne ; \ + stosl" : \ + : \ + "D" ((h) + (o)), "c" ((c)), "a" ((v)) : \ + "%edi", "%ecx", "%eax", "memory"); \ + } \ +} while (0) + +#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 /* * void bus_space_copy_N __P((bus_space_tag_t tag, @@ -477,7 +605,82 @@ void bus_space_free __P((bus_space_tag_t t, bus_space_handle_t bsh, * at tag/bsh1/off1 to bus space starting at tag/bsh2/off2. */ - /* XXX IMPLEMENT bus_space_copy_N() XXX */ +#define bus_space_copy_1(t, h1, o1, h2, o2, c) do { \ + if ((t) == I386_BUS_SPACE_IO) { \ + __asm __volatile(" \ + 1: movl %w1,%%dx ; \ + inb %%dx,%%al ; \ + movl %w0,%%dx ; \ + outl %%al,%%dx ; \ + incl %0 ; \ + incl %1 ; \ + loop 1b" : \ + : \ + "D" ((h2)+(o2)), "S" ((h1)+(o1)), "c" ((c)) : \ + "%edi", "%esi", "%ecx", "%edx", "%eax", "memory"); \ + } else { \ + __asm __volatile(" \ + cld ; \ + repne ; \ + movsb" : \ + : \ + "D" ((h2)+(o2)), "S" ((h1)+(o1)), "c" ((c)) : \ + "%edi", "%esi", "%ecx", "memory"); \ + } \ +} while (0) + +#define bus_space_copy_2(t, h1, o1, h2, o2, c) do { \ + if ((t) == I386_BUS_SPACE_IO) { \ + __asm __volatile(" \ + 1: movl %w1,%%dx ; \ + inw %%dx,%%ax ; \ + movl %w0,%%dx ; \ + outw %%ax,%%dx ; \ + addl $2, %0 ; \ + addl $2, %1 ; \ + loop 1b" : \ + : \ + "D" ((h2)+(o2)), "S" ((h1)+(o1)), "c" ((c)) : \ + "%edi", "%esi", "%ecx", "%edx", "%eax", "memory"); \ + } else { \ + __asm __volatile(" \ + cld ; \ + repne ; \ + movsw" : \ + : \ + "D" ((h2)+(o2)), "S" ((h1)+(o1)), "c" ((c)) : \ + "%edi", "%esi", "%ecx", "memory"); \ + } \ +} while (0) + +#define bus_space_copy_4(t, h1, o1, h2, o2, c) do { \ + if ((t) == I386_BUS_SPACE_IO) { \ + __asm __volatile(" \ + 1: movl %w1,%%dx ; \ + inl %%dx,%%eax ; \ + movl %w0,%%dx ; \ + outl %%eax,%%dx ; \ + addl $4, %0 ; \ + addl $4, %1 ; \ + loop 1b" : \ + : \ + "D" ((h2)+(o2)), "S" ((h1)+(o1)), "c" ((c)) : \ + "%edi", "%esi", "%ecx", "%edx", "%eax", "memory"); \ + } else { \ + __asm __volatile(" \ + cld ; \ + repne ; \ + movsl" : \ + : \ + "D" ((h2)+(o2)), "S" ((h1)+(o1)), "c" ((c)) : \ + "%edi", "%esi", "%ecx", "memory"); \ + } \ +} while (0) + +#if 0 /* Cause a link error for bus_space_copy_region_8 */ +#define bus_space_copy_8 \ + !!! bus_space_copy_8 unimplemented !!! +#endif /* * Bus read/write barrier methods. |