src/gallium/winsys/r600/drm/radeon.c

   1 /*
   2  * Copyright © 2009 Jerome Glisse <glisse@freedesktop.org>
   3  *
   4  * This file is free software; you can redistribute it and/or modify
   5  * it under the terms of version 2 of the GNU General Public License
   6  * as published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program; if not, write to the Free Software Foundation,
  15  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
  16  */
  17 #include <stdio.h>
  18 #include <stdlib.h>
  19 #include <stdint.h>
  20 #include <unistd.h>
  21 #include <string.h>
  22 #include <errno.h>
  23 #include "xf86drm.h"
  24 #include "radeon_priv.h"
  25 #include "radeon_drm.h"
  26
  27 enum radeon_family radeon_get_family(struct radeon *radeon)
  28 {
  29         return radeon->family;
  30 }
  31
  32 static int radeon_get_device(struct radeon *radeon)
  33 {
  34         struct drm_radeon_info info;
  35         int r;
  36
  37         radeon->device = 0;
  38         info.request = RADEON_INFO_DEVICE_ID;
  39         info.value = (uintptr_t)&radeon->device;
  40         r = drmCommandWriteRead(radeon->fd, DRM_RADEON_INFO, &info,
  41                         sizeof(struct drm_radeon_info));
  42         return r;
  43 }
  44
  45 /* symbol missing drove me crazy hack to get symbol exported */
  46 static void fake(void)
  47 {
  48         struct radeon_ctx *ctx;
  49         struct radeon_draw *draw;
  50
  51         ctx = radeon_ctx(NULL);
  52         draw = radeon_draw(NULL);
  53 }
  54
  55 struct radeon *radeon_new(int fd, unsigned device)
  56 {
  57         struct radeon *radeon;
  58         int r;
  59
  60         radeon = calloc(1, sizeof(*radeon));
  61         if (radeon == NULL) {
  62                 fake();
  63                 return NULL;
  64         }
  65         radeon->fd = fd;
  66         radeon->device = device;
  67         radeon->refcount = 1;
  68         if (fd >= 0) {
  69                 r = radeon_get_device(radeon);
  70                 if (r) {
  71                         fprintf(stderr, "Failed to get device id\n");
  72                         return radeon_decref(radeon);
  73                 }
  74         }
  75         radeon->family = radeon_family_from_device(radeon->device);
  76         if (radeon->family == CHIP_UNKNOWN) {
  77                 fprintf(stderr, "Unknown chipset 0x%04X\n", radeon->device);
  78                 return radeon_decref(radeon);
  79         }
  80         switch (radeon->family) {
  81         case CHIP_R600:
  82         case CHIP_RV610:
  83         case CHIP_RV630:
  84         case CHIP_RV670:
  85         case CHIP_RV620:
  86         case CHIP_RV635:
  87         case CHIP_RS780:
  88         case CHIP_RS880:
  89         case CHIP_RV770:
  90         case CHIP_RV730:
  91         case CHIP_RV710:
  92         case CHIP_RV740:
  93                 if (r600_init(radeon)) {
  94                         return radeon_decref(radeon);
  95                 }
  96                 break;
  97         case CHIP_R100:
  98         case CHIP_RV100:
  99         case CHIP_RS100:
 100         case CHIP_RV200:
 101         case CHIP_RS200:
 102         case CHIP_R200:
 103         case CHIP_RV250:
 104         case CHIP_RS300:
 105         case CHIP_RV280:
 106         case CHIP_R300:
 107         case CHIP_R350:
 108         case CHIP_RV350:
 109         case CHIP_RV380:
 110         case CHIP_R420:
 111         case CHIP_R423:
 112         case CHIP_RV410:
 113         case CHIP_RS400:
 114         case CHIP_RS480:
 115         case CHIP_RS600:
 116         case CHIP_RS690:
 117         case CHIP_RS740:
 118         case CHIP_RV515:
 119         case CHIP_R520:
 120         case CHIP_RV530:
 121         case CHIP_RV560:
 122         case CHIP_RV570:
 123         case CHIP_R580:
 124         case CHIP_CEDAR:
 125         case CHIP_REDWOOD:
 126         case CHIP_JUNIPER:
 127         case CHIP_CYPRESS:
 128         case CHIP_HEMLOCK:
 129         default:
 130                 fprintf(stderr, "%s unknown or unsupported chipset 0x%04X\n",
 131                         __func__, radeon->device);
 132                 break;
 133         }
 134         return radeon;
 135 }
 136
 137 struct radeon *radeon_incref(struct radeon *radeon)
 138 {
 139         if (radeon == NULL)
 140                 return NULL;
 141         radeon->refcount++;
 142         return radeon;
 143 }
 144
 145 struct radeon *radeon_decref(struct radeon *radeon)
 146 {
 147         if (radeon == NULL)
 148                 return NULL;
 149         if (--radeon->refcount > 0) {
 150                 return NULL;
 151         }
 152         drmClose(radeon->fd);
 153         free(radeon);
 154         return NULL;
 155 }
 156
 157 int radeon_reg_id(struct radeon *radeon, unsigned offset, unsigned *typeid, unsigned *stateid, unsigned *id)
 158 {
 159         unsigned i, j;
 160
 161         for (i = 0; i < radeon->ntype; i++) {
 162                 if (radeon->type[i].range_start) {
 163                         if (offset >= radeon->type[i].range_start && offset < radeon->type[i].range_end) {
 164                                 *typeid = i;
 165                                 j = offset - radeon->type[i].range_start;
 166                                 j /= radeon->type[i].stride;
 167                                 *stateid = radeon->type[i].id + j;
 168                                 *id = (offset - radeon->type[i].range_start - radeon->type[i].stride * j) / 4;
 169                                 return 0;
 170                         }
 171                 } else {
 172                         for (j = 0; j < radeon->type[i].nstates; j++) {
 173                                 if (radeon->type[i].regs[j].offset == offset) {
 174                                         *typeid = i;
 175                                         *stateid = radeon->type[i].id;
 176                                         *id = j;
 177                                         return 0;
 178                                 }
 179                         }
 180                 }
 181         }
 182         fprintf(stderr, "%s unknown register 0x%08X\n", __func__, offset);
 183         return -EINVAL;
 184 }
 185
 186 unsigned radeon_type_from_id(struct radeon *radeon, unsigned id)
 187 {
 188         unsigned i;
 189
 190         for (i = 0; i < radeon->ntype - 1; i++) {
 191                 if (radeon->type[i].id == id)
 192                         return i;
 193                 if (id > radeon->type[i].id && id < radeon->type[i + 1].id)
 194                         return i;
 195         }
 196         if (radeon->type[i].id == id)
 197                 return i;
 198         return -1;
 199 }