drm/amdgpu: add gfx firmware header v2_0

We need define new firmware header to support
CP RS64 fw.
Signed-off-by: Wenhui Sheng <Wenhui.Sheng@amd.com>
Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -115,6 +115,12 @@ void amdgpu_ucode_print_gfx_hdr(const struct common_firmware_header *hdr)
 			  le32_to_cpu(gfx_hdr->ucode_feature_version));
 		DRM_DEBUG("jt_offset: %u\n", le32_to_cpu(gfx_hdr->jt_offset));
 		DRM_DEBUG("jt_size: %u\n", le32_to_cpu(gfx_hdr->jt_size));
+	} else if (version_major == 2) {
+		const struct gfx_firmware_header_v2_0 *gfx_hdr =
+			container_of(hdr, struct gfx_firmware_header_v2_0, header);
+
+		DRM_DEBUG("ucode_feature_version: %u\n",
+			  le32_to_cpu(gfx_hdr->ucode_feature_version));
 	} else {
 		DRM_ERROR("Unknown GFX ucode version: %u.%u\n", version_major, version_minor);
 	}

drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h

@@ -170,6 +170,18 @@ struct gfx_firmware_header_v1_0 {
 	uint32_t jt_size;  /* size of jt */
 };
 
+/* version_major=2, version_minor=0 */
+struct gfx_firmware_header_v2_0 {
+	struct common_firmware_header header;
+	uint32_t ucode_feature_version;
+	uint32_t ucode_size_bytes;
+	uint32_t ucode_offset_bytes;
+	uint32_t data_size_bytes;
+	uint32_t data_offset_bytes;
+	uint32_t ucode_start_addr_lo;
+	uint32_t ucode_start_addr_hi;
+};
+
 /* version_major=1, version_minor=0 */
 struct mes_firmware_header_v1_0 {
 	struct common_firmware_header header;
@@ -326,6 +338,7 @@ union amdgpu_firmware_header {
 	struct ta_firmware_header_v1_0 ta;
 	struct ta_firmware_header_v2_0 ta_v2_0;
 	struct gfx_firmware_header_v1_0 gfx;
+	struct gfx_firmware_header_v2_0 gfx_v2_0;
 	struct rlc_firmware_header_v1_0 rlc;
 	struct rlc_firmware_header_v2_0 rlc_v2_0;
 	struct rlc_firmware_header_v2_1 rlc_v2_1;