drm/amdgpu: support get_vram_info atomfirmware i/f for aldebaran

Query vram_type, channel_num, channel_width
information through atomfirmware i/f
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c

@@ -123,6 +123,7 @@ union vram_info {
 	struct atom_vram_info_header_v2_3 v23;
 	struct atom_vram_info_header_v2_4 v24;
 	struct atom_vram_info_header_v2_5 v25;
+	struct atom_vram_info_header_v2_5 v26;
 };
 
 union vram_module {
@@ -315,6 +316,26 @@ amdgpu_atomfirmware_get_vram_info(struct amdgpu_device *adev,
 				if (vram_vendor)
 					*vram_vendor = mem_vendor;
 				break;
+			case 6:
+				if (module_id > vram_info->v26.vram_module_num)
+					module_id = 0;
+				vram_module = (union vram_module *)vram_info->v26.vram_module;
+				while (i < module_id) {
+					vram_module = (union vram_module *)
+						((u8 *)vram_module + vram_module->v11.vram_module_size);
+					i++;
+				}
+				mem_type = vram_module->v9.memory_type;
+				if (vram_type)
+					*vram_type = convert_atom_mem_type_to_vram_type(adev, mem_type);
+				mem_channel_number = vram_module->v9.channel_num;
+				mem_channel_width = vram_module->v9.channel_width;
+				if (vram_width)
+					*vram_width = mem_channel_number * (1 << mem_channel_width);
+				mem_vendor = (vram_module->v9.vender_rev_id) & 0xF;
+				if (vram_vendor)
+					*vram_vendor = mem_vendor;
+				break;
 			default:
 				return -EINVAL;
 			}

drivers/gpu/drm/amd/include/atomfirmware.h

@@ -2789,6 +2789,22 @@ struct atom_vram_info_header_v2_5 {
 	struct   atom_vram_module_v11  vram_module[16];        // just for allocation, real number of blocks is in ucNumOfVRAMModule;
 };
 
+struct atom_vram_info_header_v2_6 {
+	struct atom_common_table_header table_header;
+	uint16_t mem_adjust_tbloffset;
+	uint16_t mem_clk_patch_tbloffset;
+	uint16_t mc_adjust_pertile_tbloffset;
+	uint16_t mc_phyinit_tbloffset;
+	uint16_t dram_data_remap_tbloffset;
+	uint16_t tmrs_seq_offset;
+	uint16_t post_ucode_init_offset;
+	uint16_t vram_rsd2;
+	uint8_t  vram_module_num;
+	uint8_t  umcip_min_ver;
+	uint8_t  umcip_max_ver;
+	uint8_t  mc_phy_tile_num;
+	struct atom_vram_module_v9 vram_module[16];
+};
 /* 
   ***************************************************************************
     Data Table voltageobject_info  structure