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 #include "r600d.h"
  27
  28 enum radeon_family radeon_get_family(struct radeon *radeon)
  29 {
  30         return radeon->family;
  31 }
  32
  33 static int radeon_get_device(struct radeon *radeon)
  34 {
  35         struct drm_radeon_info info;
  36         int r;
  37
  38         radeon->device = 0;
  39         info.request = RADEON_INFO_DEVICE_ID;
  40         info.value = (uintptr_t)&radeon->device;
  41         r = drmCommandWriteRead(radeon->fd, DRM_RADEON_INFO, &info,
  42                         sizeof(struct drm_radeon_info));
  43         return r;
  44 }
  45
  46 struct radeon *radeon_new(int fd, unsigned device)
  47 {
  48         struct radeon *radeon;
  49         int r;
  50
  51         radeon = calloc(1, sizeof(*radeon));
  52         if (radeon == NULL) {
  53                 return NULL;
  54         }
  55         radeon->fd = fd;
  56         radeon->device = device;
  57         radeon->refcount = 1;
  58         if (fd >= 0) {
  59                 r = radeon_get_device(radeon);
  60                 if (r) {
  61                         fprintf(stderr, "Failed to get device id\n");
  62                         return radeon_decref(radeon);
  63                 }
  64         }
  65         radeon->family = radeon_family_from_device(radeon->device);
  66         if (radeon->family == CHIP_UNKNOWN) {
  67                 fprintf(stderr, "Unknown chipset 0x%04X\n", radeon->device);
  68                 return radeon_decref(radeon);
  69         }
  70         switch (radeon->family) {
  71         case CHIP_R600:
  72         case CHIP_RV610:
  73         case CHIP_RV630:
  74         case CHIP_RV670:
  75         case CHIP_RV620:
  76         case CHIP_RV635:
  77         case CHIP_RS780:
  78         case CHIP_RS880:
  79         case CHIP_RV770:
  80         case CHIP_RV730:
  81         case CHIP_RV710:
  82         case CHIP_RV740:
  83                 if (r600_init(radeon)) {
  84                         return radeon_decref(radeon);
  85                 }
  86                 break;
  87         case CHIP_R100:
  88         case CHIP_RV100:
  89         case CHIP_RS100:
  90         case CHIP_RV200:
  91         case CHIP_RS200:
  92         case CHIP_R200:
  93         case CHIP_RV250:
  94         case CHIP_RS300:
  95         case CHIP_RV280:
  96         case CHIP_R300:
  97         case CHIP_R350:
  98         case CHIP_RV350:
  99         case CHIP_RV380:
 100         case CHIP_R420:
 101         case CHIP_R423:
 102         case CHIP_RV410:
 103         case CHIP_RS400:
 104         case CHIP_RS480:
 105         case CHIP_RS600:
 106         case CHIP_RS690:
 107         case CHIP_RS740:
 108         case CHIP_RV515:
 109         case CHIP_R520:
 110         case CHIP_RV530:
 111         case CHIP_RV560:
 112         case CHIP_RV570:
 113         case CHIP_R580:
 114         case CHIP_CEDAR:
 115         case CHIP_REDWOOD:
 116         case CHIP_JUNIPER:
 117         case CHIP_CYPRESS:
 118         case CHIP_HEMLOCK:
 119         default:
 120                 fprintf(stderr, "%s unknown or unsupported chipset 0x%04X\n",
 121                         __func__, radeon->device);
 122                 break;
 123         }
 124         return radeon;
 125 }
 126
 127 struct radeon *radeon_incref(struct radeon *radeon)
 128 {
 129         if (radeon == NULL)
 130                 return NULL;
 131         radeon->refcount++;
 132         return radeon;
 133 }
 134
 135 struct radeon *radeon_decref(struct radeon *radeon)
 136 {
 137         if (radeon == NULL)
 138                 return NULL;
 139         if (--radeon->refcount > 0) {
 140                 return NULL;
 141         }
 142         drmClose(radeon->fd);
 143         free(radeon);
 144         return NULL;
 145 }
 146
 147 int radeon_reg_id(struct radeon *radeon, unsigned offset, unsigned *typeid, unsigned *stateid, unsigned *id)
 148 {
 149         unsigned i, j;
 150
 151         for (i = 0; i < radeon->ntype; i++) {
 152                 if (radeon->type[i].range_start) {
 153                         if (offset >= radeon->type[i].range_start && offset < radeon->type[i].range_end) {
 154                                 *typeid = i;
 155                                 j = offset - radeon->type[i].range_start;
 156                                 j /= radeon->type[i].stride;
 157                                 *stateid = radeon->type[i].id + j;
 158                                 *id = (offset - radeon->type[i].range_start - radeon->type[i].stride * j) / 4;
 159                                 return 0;
 160                         }
 161                 } else {
 162                         for (j = 0; j < radeon->type[i].nstates; j++) {
 163                                 if (radeon->type[i].regs[j].offset == offset) {
 164                                         *typeid = i;
 165                                         *stateid = radeon->type[i].id;
 166                                         *id = j;
 167                                         return 0;
 168                                 }
 169                         }
 170                 }
 171         }
 172         fprintf(stderr, "%s unknown register 0x%08X\n", __func__, offset);
 173         return -EINVAL;
 174 }
 175
 176 unsigned radeon_type_from_id(struct radeon *radeon, unsigned id)
 177 {
 178         unsigned i;
 179
 180         for (i = 0; i < radeon->ntype - 1; i++) {
 181                 if (radeon->type[i].id == id)
 182                         return i;
 183                 if (id > radeon->type[i].id && id < radeon->type[i + 1].id)
 184                         return i;
 185         }
 186         if (radeon->type[i].id == id)
 187                 return i;
 188         return -1;
 189 }