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 /* symbol missing drove me crazy hack to get symbol exported */
  47 static void fake(void)
  48 {
  49         struct radeon_ctx *ctx;
  50         struct radeon_draw *draw;
  51
  52         ctx = radeon_ctx(NULL);
  53         draw = radeon_draw(NULL);
  54 }
  55
  56 struct radeon *radeon_new(int fd, unsigned device)
  57 {
  58         struct radeon *radeon;
  59         int r;
  60
  61         radeon = calloc(1, sizeof(*radeon));
  62         if (radeon == NULL) {
  63                 fake();
  64                 return NULL;
  65         }
  66         radeon->fd = fd;
  67         radeon->device = device;
  68         radeon->refcount = 1;
  69         if (fd >= 0) {
  70                 r = radeon_get_device(radeon);
  71                 if (r) {
  72                         fprintf(stderr, "Failed to get device id\n");
  73                         return radeon_decref(radeon);
  74                 }
  75         }
  76         radeon->family = radeon_family_from_device(radeon->device);
  77         if (radeon->family == CHIP_UNKNOWN) {
  78                 fprintf(stderr, "Unknown chipset 0x%04X\n", radeon->device);
  79                 return radeon_decref(radeon);
  80         }
  81         switch (radeon->family) {
  82         case CHIP_R600:
  83         case CHIP_RV610:
  84         case CHIP_RV630:
  85         case CHIP_RV670:
  86         case CHIP_RV620:
  87         case CHIP_RV635:
  88         case CHIP_RS780:
  89         case CHIP_RS880:
  90         case CHIP_RV770:
  91         case CHIP_RV730:
  92         case CHIP_RV710:
  93         case CHIP_RV740:
  94                 if (r600_init(radeon)) {
  95                         return radeon_decref(radeon);
  96                 }
  97                 break;
  98         case CHIP_R100:
  99         case CHIP_RV100:
 100         case CHIP_RS100:
 101         case CHIP_RV200:
 102         case CHIP_RS200:
 103         case CHIP_R200:
 104         case CHIP_RV250:
 105         case CHIP_RS300:
 106         case CHIP_RV280:
 107         case CHIP_R300:
 108         case CHIP_R350:
 109         case CHIP_RV350:
 110         case CHIP_RV380:
 111         case CHIP_R420:
 112         case CHIP_R423:
 113         case CHIP_RV410:
 114         case CHIP_RS400:
 115         case CHIP_RS480:
 116         case CHIP_RS600:
 117         case CHIP_RS690:
 118         case CHIP_RS740:
 119         case CHIP_RV515:
 120         case CHIP_R520:
 121         case CHIP_RV530:
 122         case CHIP_RV560:
 123         case CHIP_RV570:
 124         case CHIP_R580:
 125         case CHIP_CEDAR:
 126         case CHIP_REDWOOD:
 127         case CHIP_JUNIPER:
 128         case CHIP_CYPRESS:
 129         case CHIP_HEMLOCK:
 130         default:
 131                 fprintf(stderr, "%s unknown or unsupported chipset 0x%04X\n",
 132                         __func__, radeon->device);
 133                 break;
 134         }
 135         return radeon;
 136 }
 137
 138 struct radeon *radeon_incref(struct radeon *radeon)
 139 {
 140         if (radeon == NULL)
 141                 return NULL;
 142         radeon->refcount++;
 143         return radeon;
 144 }
 145
 146 struct radeon *radeon_decref(struct radeon *radeon)
 147 {
 148         if (radeon == NULL)
 149                 return NULL;
 150         if (--radeon->refcount > 0) {
 151                 return NULL;
 152         }
 153         drmClose(radeon->fd);
 154         free(radeon);
 155         return NULL;
 156 }
 157
 158 int radeon_reg_id(struct radeon *radeon, unsigned offset, unsigned *typeid, unsigned *stateid, unsigned *id)
 159 {
 160         unsigned i, j;
 161
 162         for (i = 0; i < radeon->ntype; i++) {
 163                 if (radeon->type[i].range_start) {
 164                         if (offset >= radeon->type[i].range_start && offset < radeon->type[i].range_end) {
 165                                 *typeid = i;
 166                                 j = offset - radeon->type[i].range_start;
 167                                 j /= radeon->type[i].stride;
 168                                 *stateid = radeon->type[i].id + j;
 169                                 *id = (offset - radeon->type[i].range_start - radeon->type[i].stride * j) / 4;
 170                                 return 0;
 171                         }
 172                 } else {
 173                         for (j = 0; j < radeon->type[i].nstates; j++) {
 174                                 if (radeon->type[i].regs[j].offset == offset) {
 175                                         *typeid = i;
 176                                         *stateid = radeon->type[i].id;
 177                                         *id = j;
 178                                         return 0;
 179                                 }
 180                         }
 181                 }
 182         }
 183         fprintf(stderr, "%s unknown register 0x%08X\n", __func__, offset);
 184         return -EINVAL;
 185 }
 186
 187 unsigned radeon_type_from_id(struct radeon *radeon, unsigned id)
 188 {
 189         unsigned i;
 190
 191         for (i = 0; i < radeon->ntype - 1; i++) {
 192                 if (radeon->type[i].id == id)
 193                         return i;
 194                 if (id > radeon->type[i].id && id < radeon->type[i + 1].id)
 195                         return i;
 196         }
 197         if (radeon->type[i].id == id)
 198                 return i;
 199         return -1;
 200 }