drm/amdgpu: add gpu_info firmware (v3)

Add a new gpu info firmware to store gpu specific configuration
data.  This allows us to store hw constants in a unified place.

v2: adjust structure and elements
v3: further restructure
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Tested-by: Junwei Zhang <Jerry.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -197,6 +197,27 @@ void amdgpu_ucode_print_sdma_hdr(const struct common_firmware_header *hdr)
 	}
 }
 
+void amdgpu_ucode_print_gpu_info_hdr(const struct common_firmware_header *hdr)
+{
+	uint16_t version_major = le16_to_cpu(hdr->header_version_major);
+	uint16_t version_minor = le16_to_cpu(hdr->header_version_minor);
+
+	DRM_DEBUG("GPU_INFO\n");
+	amdgpu_ucode_print_common_hdr(hdr);
+
+	if (version_major == 1) {
+		const struct gpu_info_firmware_header_v1_0 *gpu_info_hdr =
+			container_of(hdr, struct gpu_info_firmware_header_v1_0, header);
+
+		DRM_DEBUG("version_major: %u\n",
+			  le16_to_cpu(gpu_info_hdr->version_major));
+		DRM_DEBUG("version_minor: %u\n",
+			  le16_to_cpu(gpu_info_hdr->version_minor));
+	} else {
+		DRM_ERROR("Unknown gpu_info ucode version: %u.%u\n", version_major, version_minor);
+	}
+}
+
 int amdgpu_ucode_validate(const struct firmware *fw)
 {
 	const struct common_firmware_header *hdr =

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

@@ -113,6 +113,29 @@ struct sdma_firmware_header_v1_1 {
 	uint32_t digest_size;
 };
 
+/* gpu info payload */
+struct gpu_info_firmware_v1_0 {
+	uint32_t gc_num_se;
+	uint32_t gc_num_cu_per_sh;
+	uint32_t gc_num_sh_per_se;
+	uint32_t gc_num_rb_per_se;
+	uint32_t gc_num_tccs;
+	uint32_t gc_num_gprs;
+	uint32_t gc_num_max_gs_thds;
+	uint32_t gc_gs_table_depth;
+	uint32_t gc_gsprim_buff_depth;
+	uint32_t gc_parameter_cache_depth;
+	uint32_t gc_double_offchip_lds_buffer;
+	uint32_t gc_wave_size;
+};
+
+/* version_major=1, version_minor=0 */
+struct gpu_info_firmware_header_v1_0 {
+	struct common_firmware_header header;
+	uint16_t version_major; /* version */
+	uint16_t version_minor; /* version */
+};
+
 /* header is fixed size */
 union amdgpu_firmware_header {
 	struct common_firmware_header common;
@@ -124,6 +147,7 @@ union amdgpu_firmware_header {
 	struct rlc_firmware_header_v2_0 rlc_v2_0;
 	struct sdma_firmware_header_v1_0 sdma;
 	struct sdma_firmware_header_v1_1 sdma_v1_1;
+	struct gpu_info_firmware_header_v1_0 gpu_info;
 	uint8_t raw[0x100];
 };
 
@@ -184,6 +208,7 @@ void amdgpu_ucode_print_smc_hdr(const struct common_firmware_header *hdr);
 void amdgpu_ucode_print_gfx_hdr(const struct common_firmware_header *hdr);
 void amdgpu_ucode_print_rlc_hdr(const struct common_firmware_header *hdr);
 void amdgpu_ucode_print_sdma_hdr(const struct common_firmware_header *hdr);
+void amdgpu_ucode_print_gpu_info_hdr(const struct common_firmware_header *hdr);
 int amdgpu_ucode_validate(const struct firmware *fw);
 bool amdgpu_ucode_hdr_version(union amdgpu_firmware_header *hdr,
 				uint16_t hdr_major, uint16_t hdr_minor);