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 struct radeon *radeon_new(int fd, unsigned device)
  46 {
  47         struct radeon *radeon;
  48         int r, i, id, j, k;
  49
  50         radeon = calloc(1, sizeof(*radeon));
  51         if (radeon == NULL) {
  52                 return NULL;
  53         }
  54         radeon->fd = fd;
  55         radeon->device = device;
  56         radeon->refcount = 1;
  57         if (fd >= 0) {
  58                 r = radeon_get_device(radeon);
  59                 if (r) {
  60                         fprintf(stderr, "Failed to get device id\n");
  61                         return radeon_decref(radeon);
  62                 }
  63         }
  64         radeon->family = radeon_family_from_device(radeon->device);
  65         if (radeon->family == CHIP_UNKNOWN) {
  66                 fprintf(stderr, "Unknown chipset 0x%04X\n", radeon->device);
  67                 return radeon_decref(radeon);
  68         }
  69         switch (radeon->family) {
  70         case CHIP_R600:
  71         case CHIP_RV610:
  72         case CHIP_RV630:
  73         case CHIP_RV670:
  74         case CHIP_RV620:
  75         case CHIP_RV635:
  76         case CHIP_RS780:
  77         case CHIP_RS880:
  78         case CHIP_RV770:
  79         case CHIP_RV730:
  80         case CHIP_RV710:
  81         case CHIP_RV740:
  82         case CHIP_CEDAR:
  83         case CHIP_REDWOOD:
  84         case CHIP_JUNIPER:
  85         case CHIP_CYPRESS:
  86         case CHIP_HEMLOCK:
  87                 if (r600_init(radeon)) {
  88                         return radeon_decref(radeon);
  89                 }
  90                 break;
  91         case CHIP_R100:
  92         case CHIP_RV100:
  93         case CHIP_RS100:
  94         case CHIP_RV200:
  95         case CHIP_RS200:
  96         case CHIP_R200:
  97         case CHIP_RV250:
  98         case CHIP_RS300:
  99         case CHIP_RV280:
 100         case CHIP_R300:
 101         case CHIP_R350:
 102         case CHIP_RV350:
 103         case CHIP_RV380:
 104         case CHIP_R420:
 105         case CHIP_R423:
 106         case CHIP_RV410:
 107         case CHIP_RS400:
 108         case CHIP_RS480:
 109         case CHIP_RS600:
 110         case CHIP_RS690:
 111         case CHIP_RS740:
 112         case CHIP_RV515:
 113         case CHIP_R520:
 114         case CHIP_RV530:
 115         case CHIP_RV560:
 116         case CHIP_RV570:
 117         case CHIP_R580:
 118         default:
 119                 fprintf(stderr, "%s unknown or unsupported chipset 0x%04X\n",
 120                         __func__, radeon->device);
 121                 break;
 122         }
 123         return radeon;
 124 }
 125
 126 struct radeon *radeon_incref(struct radeon *radeon)
 127 {
 128         if (radeon == NULL)
 129                 return NULL;
 130         radeon->refcount++;
 131         return radeon;
 132 }
 133
 134 struct radeon *radeon_decref(struct radeon *radeon)
 135 {
 136         if (radeon == NULL)
 137                 return NULL;
 138         if (--radeon->refcount > 0) {
 139                 return NULL;
 140         }
 141         drmClose(radeon->fd);
 142         free(radeon);
 143         return NULL;
 144 }