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 <pipebuffer/pb_bufmgr.h>
  24 #include "xf86drm.h"
  25 #include "radeon_priv.h"
  26 #include "radeon_drm.h"
  27
  28 enum radeon_family radeon_get_family(struct radeon *radeon)
  29 {
  30         return radeon->family;
  31 }
  32
  33 void radeon_set_mem_constant(struct radeon *radeon, boolean state)
  34 {
  35         radeon->use_mem_constant = state;
  36 }
  37
  38 static int radeon_get_device(struct radeon *radeon)
  39 {
  40         struct drm_radeon_info info;
  41         int r;
  42
  43         radeon->device = 0;
  44         info.request = RADEON_INFO_DEVICE_ID;
  45         info.value = (uintptr_t)&radeon->device;
  46         r = drmCommandWriteRead(radeon->fd, DRM_RADEON_INFO, &info,
  47                         sizeof(struct drm_radeon_info));
  48         return r;
  49 }
  50
  51 struct radeon *radeon_new(int fd, unsigned device)
  52 {
  53         struct radeon *radeon;
  54         int r, i, id, j, k;
  55
  56         radeon = calloc(1, sizeof(*radeon));
  57         if (radeon == NULL) {
  58                 return NULL;
  59         }
  60         radeon->fd = fd;
  61         radeon->device = device;
  62         radeon->refcount = 1;
  63         if (fd >= 0) {
  64                 r = radeon_get_device(radeon);
  65                 if (r) {
  66                         fprintf(stderr, "Failed to get device id\n");
  67                         return radeon_decref(radeon);
  68                 }
  69         }
  70         radeon->family = radeon_family_from_device(radeon->device);
  71         if (radeon->family == CHIP_UNKNOWN) {
  72                 fprintf(stderr, "Unknown chipset 0x%04X\n", radeon->device);
  73                 return radeon_decref(radeon);
  74         }
  75         switch (radeon->family) {
  76         case CHIP_R600:
  77         case CHIP_RV610:
  78         case CHIP_RV630:
  79         case CHIP_RV670:
  80         case CHIP_RV620:
  81         case CHIP_RV635:
  82         case CHIP_RS780:
  83         case CHIP_RS880:
  84         case CHIP_RV770:
  85         case CHIP_RV730:
  86         case CHIP_RV710:
  87         case CHIP_RV740:
  88         case CHIP_CEDAR:
  89         case CHIP_REDWOOD:
  90         case CHIP_JUNIPER:
  91         case CHIP_CYPRESS:
  92         case CHIP_HEMLOCK:
  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         default:
 125                 fprintf(stderr, "%s unknown or unsupported chipset 0x%04X\n",
 126                         __func__, radeon->device);
 127                 break;
 128         }
 129
 130         radeon->mman = pb_malloc_bufmgr_create();
 131         if (!radeon->mman)
 132                 return NULL;
 133         radeon->kman = radeon_bo_pbmgr_create(radeon);
 134         if (!radeon->kman)
 135                 return NULL;
 136         return radeon;
 137 }
 138
 139 struct radeon *radeon_incref(struct radeon *radeon)
 140 {
 141         if (radeon == NULL)
 142                 return NULL;
 143         radeon->refcount++;
 144         return radeon;
 145 }
 146
 147 struct radeon *radeon_decref(struct radeon *radeon)
 148 {
 149         if (radeon == NULL)
 150                 return NULL;
 151         if (--radeon->refcount > 0) {
 152                 return NULL;
 153         }
 154
 155         radeon->mman->destroy(radeon->mman);
 156         radeon->kman->destroy(radeon->kman);
 157         drmClose(radeon->fd);
 158         free(radeon);
 159         return NULL;
 160 }