sys/arch/arm/xscale/i80321_aau.c

   1 /*      $NetBSD: i80321_aau.c,v 1.13 2008/04/27 18:58:45 matt Exp $     */
   2
   3 /*
   4  * Copyright (c) 2002 Wasabi Systems, Inc.
   5  * All rights reserved.
   6  *
   7  * Written by Jason R. Thorpe for Wasabi Systems, Inc.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 3. All advertising materials mentioning features or use of this software
  18  *    must display the following acknowledgement:
  19  *      This product includes software developed for the NetBSD Project by
  20  *      Wasabi Systems, Inc.
  21  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
  22  *    or promote products derived from this software without specific prior
  23  *    written permission.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
  26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  28  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
  29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  35  * POSSIBILITY OF SUCH DAMAGE.
  36  */
  37
  38 /*
  39  * Intel i80321 I/O Processor application accelerator unit support.
  40  */
  41
  42 #include <sys/cdefs.h>
  43 __KERNEL_RCSID(0, "$NetBSD: i80321_aau.c,v 1.13 2008/04/27 18:58:45 matt Exp $");
  44
  45 #include <sys/param.h>
  46 #include <sys/pool.h>
  47 #include <sys/systm.h>
  48 #include <sys/device.h>
  49 #include <sys/uio.h>
  50 #include <sys/bus.h>
  51 #include <sys/intr.h>
  52
  53 #include <uvm/uvm.h>
  54
  55 #include <arm/xscale/i80321reg.h>
  56 #include <arm/xscale/i80321var.h>
  57
  58 #include <arm/xscale/iopaaureg.h>
  59 #include <arm/xscale/iopaauvar.h>
  60
  61 struct aau321_softc {
  62         /* Shared AAU definitions. */
  63         struct iopaau_softc sc_iopaau;
  64
  65         /* i80321-specific stuff. */
  66         void *sc_error_ih;
  67         void *sc_eoc_ih;
  68         void *sc_eot_ih;
  69 };
  70
  71 static struct iopaau_function aau321_func_zero = {
  72         .af_setup = iopaau_func_zero_setup,
  73 };
  74
  75 static struct iopaau_function aau321_func_fill8 = {
  76         .af_setup = iopaau_func_fill8_setup,
  77 };
  78
  79 static struct iopaau_function aau321_func_xor_1_4 = {
  80         .af_setup = iopaau_func_xor_setup,
  81 };
  82
  83 static struct iopaau_function aau321_func_xor_5_8 = {
  84         .af_setup = iopaau_func_xor_setup,
  85 };
  86
  87 static const struct dmover_algdesc aau321_algdescs[] = {
  88         {
  89           .dad_name = DMOVER_FUNC_ZERO,
  90           .dad_data = &aau321_func_zero,
  91           .dad_ninputs = 0
  92         },
  93         {
  94           .dad_name = DMOVER_FUNC_FILL8,
  95           .dad_data = &aau321_func_fill8,
  96           .dad_ninputs = 0
  97         },
  98         {
  99           .dad_name = DMOVER_FUNC_COPY,
 100           .dad_data = &aau321_func_xor_1_4,
 101           .dad_ninputs = 1
 102         },
 103         {
 104           .dad_name = DMOVER_FUNC_XOR2,
 105           .dad_data = &aau321_func_xor_1_4,
 106           .dad_ninputs = 2
 107         },
 108         {
 109           .dad_name = DMOVER_FUNC_XOR3,
 110           .dad_data = &aau321_func_xor_1_4,
 111           .dad_ninputs = 3
 112         },
 113         {
 114           .dad_name = DMOVER_FUNC_XOR4,
 115           .dad_data = &aau321_func_xor_1_4,
 116           .dad_ninputs = 4
 117         },
 118         {
 119           .dad_name = DMOVER_FUNC_XOR5,
 120           .dad_data = &aau321_func_xor_5_8,
 121           5
 122         },
 123         {
 124           .dad_name = DMOVER_FUNC_XOR6,
 125           .dad_data = &aau321_func_xor_5_8,
 126           .dad_ninputs = 6
 127         },
 128         {
 129           .dad_name = DMOVER_FUNC_XOR7,
 130           .dad_data = &aau321_func_xor_5_8,
 131           .dad_ninputs = 7
 132         },
 133         {
 134           .dad_name = DMOVER_FUNC_XOR8,
 135           .dad_data = &aau321_func_xor_5_8,
 136           .dad_ninputs = 8
 137         },
 138 };
 139 #define AAU321_ALGDESC_COUNT    __arraycount(aau321_algdescs)
 140
 141 static int
 142 aau321_match(struct device *parent, struct cfdata *match, void *aux)
 143 {
 144         struct iopxs_attach_args *ia = aux;
 145
 146         if (strcmp(match->cf_name, ia->ia_name) == 0)
 147                 return (1);
 148
 149         return (0);
 150 }
 151
 152 static void
 153 aau321_attach(struct device *parent, struct device *self, void *aux)
 154 {
 155         struct aau321_softc *sc321 = (void *) self;
 156         struct iopaau_softc *sc = &sc321->sc_iopaau;
 157         struct iopxs_attach_args *ia = aux;
 158         int error;
 159
 160         aprint_naive("\n");
 161         aprint_normal("\n");
 162
 163         sc->sc_st = ia->ia_st;
 164         error = bus_space_subregion(sc->sc_st, ia->ia_sh,
 165             ia->ia_offset, ia->ia_size, &sc->sc_sh);
 166         if (error) {
 167                 aprint_error("%s: unable to subregion registers, error = %d\n",
 168                     sc->sc_dev.dv_xname, error);
 169                 return;
 170         }
 171
 172         sc->sc_dmat = ia->ia_dmat;
 173
 174         sc321->sc_error_ih = i80321_intr_establish(ICU_INT_AAUE, IPL_BIO,
 175             iopaau_intr, sc);
 176         if (sc321->sc_error_ih == NULL) {
 177                 aprint_error("%s: unable to register error interrupt handler\n",
 178                     sc->sc_dev.dv_xname);
 179                 return;
 180         }
 181
 182         sc321->sc_eoc_ih = i80321_intr_establish(ICU_INT_AAU_EOC, IPL_BIO,
 183             iopaau_intr, sc);
 184         if (sc321->sc_eoc_ih == NULL) {
 185                 aprint_error("%s: unable to register EOC interrupt handler\n",
 186                     sc->sc_dev.dv_xname);
 187                 return;
 188         }
 189
 190         sc321->sc_eot_ih = i80321_intr_establish(ICU_INT_AAU_EOT, IPL_BIO,
 191             iopaau_intr, sc);
 192         if (sc321->sc_eoc_ih == NULL) {
 193                 aprint_error("%s: unable to register EOT interrupt handler\n",
 194                     sc->sc_dev.dv_xname);
 195                 return;
 196         }
 197
 198         sc->sc_dmb.dmb_name = sc->sc_dev.dv_xname;
 199         sc->sc_dmb.dmb_speed = 1638400;                 /* XXX */
 200         sc->sc_dmb.dmb_cookie = sc;
 201         sc->sc_dmb.dmb_algdescs = aau321_algdescs;
 202         sc->sc_dmb.dmb_nalgdescs = AAU321_ALGDESC_COUNT;
 203         sc->sc_dmb.dmb_process = iopaau_process;
 204
 205         iopaau_attach(sc);
 206
 207         /*
 208          * These must be initialized after iopaau_attach()
 209          * because iopaau_desc_[48]_cache is set up there.
 210          */
 211         KASSERT(iopaau_desc_4_cache != NULL);
 212         aau321_func_zero.af_desc_cache = iopaau_desc_4_cache;
 213         aau321_func_fill8.af_desc_cache = iopaau_desc_4_cache;
 214         aau321_func_xor_1_4.af_desc_cache = iopaau_desc_4_cache;
 215
 216         KASSERT(iopaau_desc_8_cache != NULL);
 217         aau321_func_xor_5_8.af_desc_cache = iopaau_desc_8_cache;
 218 }
 219
 220 CFATTACH_DECL(iopaau, sizeof(struct aau321_softc),
 221     aau321_match, aau321_attach, NULL, NULL);