+static int r600_interpret_tiling(struct r600_screen *rscreen, uint32_t tiling_config)
+{
+ switch ((tiling_config & 0xe) >> 1) {
+ case 0:
+ rscreen->tiling_info.num_channels = 1;
+ break;
+ case 1:
+ rscreen->tiling_info.num_channels = 2;
+ break;
+ case 2:
+ rscreen->tiling_info.num_channels = 4;
+ break;
+ case 3:
+ rscreen->tiling_info.num_channels = 8;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch ((tiling_config & 0x30) >> 4) {
+ case 0:
+ rscreen->tiling_info.num_banks = 4;
+ break;
+ case 1:
+ rscreen->tiling_info.num_banks = 8;
+ break;
+ default:
+ return -EINVAL;
+
+ }
+ switch ((tiling_config & 0xc0) >> 6) {
+ case 0:
+ rscreen->tiling_info.group_bytes = 256;
+ break;
+ case 1:
+ rscreen->tiling_info.group_bytes = 512;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int evergreen_interpret_tiling(struct r600_screen *rscreen, uint32_t tiling_config)
+{
+ switch (tiling_config & 0xf) {
+ case 0:
+ rscreen->tiling_info.num_channels = 1;
+ break;
+ case 1:
+ rscreen->tiling_info.num_channels = 2;
+ break;
+ case 2:
+ rscreen->tiling_info.num_channels = 4;
+ break;
+ case 3:
+ rscreen->tiling_info.num_channels = 8;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch ((tiling_config & 0xf0) >> 4) {
+ case 0:
+ rscreen->tiling_info.num_banks = 4;
+ break;
+ case 1:
+ rscreen->tiling_info.num_banks = 8;
+ break;
+ case 2:
+ rscreen->tiling_info.num_banks = 16;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch ((tiling_config & 0xf00) >> 8) {
+ case 0:
+ rscreen->tiling_info.group_bytes = 256;
+ break;
+ case 1:
+ rscreen->tiling_info.group_bytes = 512;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int r600_init_tiling(struct r600_screen *rscreen)