diff options
Diffstat (limited to 'sys/alpha/pci/swiz.c')
| -rw-r--r-- | sys/alpha/pci/swiz.c | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/sys/alpha/pci/swiz.c b/sys/alpha/pci/swiz.c new file mode 100644 index 0000000..01b3059 --- /dev/null +++ b/sys/alpha/pci/swiz.c @@ -0,0 +1,154 @@ +/*- + * Copyright (c) 2000 Doug Rabson + * All rights reserved. + * + * 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 AUTHOR 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 AUTHOR 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. + * + * $FreeBSD$ + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/kobj.h> + +#include <machine/bus.h> +#include <machine/swiz.h> + +static u_int8_t +swiz_read_1(struct alpha_busspace *space, size_t offset) +{ + struct swiz_space *swiz = (struct swiz_space *) space; + alpha_mb(); + if (swiz->sethae) + offset = swiz->sethae(swiz->arg, offset); + return SPARSE_READ_BYTE(swiz->base, offset); +} + +static u_int16_t +swiz_read_2(struct alpha_busspace *space, size_t offset) +{ + struct swiz_space *swiz = (struct swiz_space *) space; + alpha_mb(); + if (swiz->sethae) + offset = swiz->sethae(swiz->arg, offset); + return SPARSE_READ_WORD(swiz->base, offset); +} + +static u_int32_t +swiz_read_4(struct alpha_busspace *space, size_t offset) +{ + struct swiz_space *swiz = (struct swiz_space *) space; + alpha_mb(); + if (swiz->sethae) + offset = swiz->sethae(swiz->arg, offset); + return SPARSE_READ_LONG(swiz->base, offset); +} + +static void +swiz_write_1(struct alpha_busspace *space, size_t offset, u_int8_t data) +{ + struct swiz_space *swiz = (struct swiz_space *) space; + if (swiz->sethae) + offset = swiz->sethae(swiz->arg, offset); + SPARSE_WRITE_BYTE(swiz->base, offset, data); + alpha_mb(); +} + +static void +swiz_write_2(struct alpha_busspace *space, size_t offset, u_int16_t data) +{ + struct swiz_space *swiz = (struct swiz_space *) space; + if (swiz->sethae) + offset = swiz->sethae(swiz->arg, offset); + SPARSE_WRITE_WORD(swiz->base, offset, data); + alpha_mb(); +} + +static void +swiz_write_4(struct alpha_busspace *space, size_t offset, u_int32_t data) +{ + struct swiz_space *swiz = (struct swiz_space *) space; + if (swiz->sethae) + offset = swiz->sethae(swiz->arg, offset); + SPARSE_WRITE_LONG(swiz->base, offset, data); + alpha_mb(); +} + +static struct alpha_busspace_ops swiz_space_ops = { + swiz_read_1, + swiz_read_2, + swiz_read_4, + + busspace_generic_read_multi_1, + busspace_generic_read_multi_2, + busspace_generic_read_multi_4, + + busspace_generic_read_region_1, + busspace_generic_read_region_2, + busspace_generic_read_region_4, + + swiz_write_1, + swiz_write_2, + swiz_write_4, + + busspace_generic_write_multi_1, + busspace_generic_write_multi_2, + busspace_generic_write_multi_4, + + busspace_generic_write_region_1, + busspace_generic_write_region_2, + busspace_generic_write_region_4, + + busspace_generic_set_multi_1, + busspace_generic_set_multi_2, + busspace_generic_set_multi_4, + + busspace_generic_set_region_1, + busspace_generic_set_region_2, + busspace_generic_set_region_4, + + busspace_generic_copy_region_1, + busspace_generic_copy_region_2, + busspace_generic_copy_region_4, + + busspace_generic_barrier, +}; + +void +swiz_init_space(struct swiz_space *swiz, u_int64_t base) +{ + swiz->ops = &swiz_space_ops; + swiz->base = base; + swiz->sethae = 0; + swiz->arg = 0; +} + +void swiz_init_space_hae(struct swiz_space *swiz, u_int64_t base, + swiz_sethae_fn sethae, void *arg) +{ + swiz->ops = &swiz_space_ops; + swiz->base = base; + swiz->sethae = sethae; + swiz->arg = arg; +} + |
