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 void radeon_set_mem_constant(struct radeon *radeon, boolean state)
  33 {
  34         radeon->use_mem_constant = state;
  35 }
  36
  37 static int radeon_get_device(struct radeon *radeon)
  38 {
  39         struct drm_radeon_info info;
  40         int r;
  41
  42         radeon->device = 0;
  43         info.request = RADEON_INFO_DEVICE_ID;
  44         info.value = (uintptr_t)&radeon->device;
  45         r = drmCommandWriteRead(radeon->fd, DRM_RADEON_INFO, &info,
  46                         sizeof(struct drm_radeon_info));
  47         return r;
  48 }
  49
  50 struct radeon *radeon_new(int fd, unsigned device)
  51 {
  52         struct radeon *radeon;
  53         int r, i, id, j, k;
  54
  55         radeon = calloc(1, sizeof(*radeon));
  56         if (radeon == NULL) {
  57                 return NULL;
  58         }
  59         radeon->fd = fd;
  60         radeon->device = device;
  61         radeon->refcount = 1;
  62         if (fd >= 0) {
  63                 r = radeon_get_device(radeon);
  64                 if (r) {
  65                         fprintf(stderr, "Failed to get device id\n");
  66                         return radeon_decref(radeon);
  67                 }
  68         }
  69         radeon->family = radeon_family_from_device(radeon->device);
  70         if (radeon->family == CHIP_UNKNOWN) {
  71                 fprintf(stderr, "Unknown chipset 0x%04X\n", radeon->device);
  72                 return radeon_decref(radeon);
  73         }
  74         switch (radeon->family) {
  75         case CHIP_R600:
  76         case CHIP_RV610:
  77         case CHIP_RV630:
  78         case CHIP_RV670:
  79         case CHIP_RV620:
  80         case CHIP_RV635:
  81         case CHIP_RS780:
  82         case CHIP_RS880:
  83         case CHIP_RV770:
  84         case CHIP_RV730:
  85         case CHIP_RV710:
  86         case CHIP_RV740:
  87         case CHIP_CEDAR:
  88         case CHIP_REDWOOD:
  89         case CHIP_JUNIPER:
  90         case CHIP_CYPRESS:
  91         case CHIP_HEMLOCK:
  92                 if (r600_init(radeon)) {
  93                         return radeon_decref(radeon);
  94                 }
  95                 break;
  96         case CHIP_R100:
  97         case CHIP_RV100:
  98         case CHIP_RS100:
  99         case CHIP_RV200:
 100         case CHIP_RS200:
 101         case CHIP_R200:
 102         case CHIP_RV250:
 103         case CHIP_RS300:
 104         case CHIP_RV280:
 105         case CHIP_R300:
 106         case CHIP_R350:
 107         case CHIP_RV350:
 108         case CHIP_RV380:
 109         case CHIP_R420:
 110         case CHIP_R423:
 111         case CHIP_RV410:
 112         case CHIP_RS400:
 113         case CHIP_RS480:
 114         case CHIP_RS600:
 115         case CHIP_RS690:
 116         case CHIP_RS740:
 117         case CHIP_RV515:
 118         case CHIP_R520:
 119         case CHIP_RV530:
 120         case CHIP_RV560:
 121         case CHIP_RV570:
 122         case CHIP_R580:
 123         default:
 124                 fprintf(stderr, "%s unknown or unsupported chipset 0x%04X\n",
 125                         __func__, radeon->device);
 126                 break;
 127         }
 128         return radeon;
 129 }
 130
 131 struct radeon *radeon_incref(struct radeon *radeon)
 132 {
 133         if (radeon == NULL)
 134                 return NULL;
 135         radeon->refcount++;
 136         return radeon;
 137 }
 138
 139 struct radeon *radeon_decref(struct radeon *radeon)
 140 {
 141         if (radeon == NULL)
 142                 return NULL;
 143         if (--radeon->refcount > 0) {
 144                 return NULL;
 145         }
 146         drmClose(radeon->fd);
 147         free(radeon);
 148         return NULL;
 149 }