1 files changed, 196 insertions, 0 deletions
diff --git a/info/viv_info.c b/info/viv_info.c
new file mode 100644
index 0000000..504ddd4
--- /dev/null
+++ b/info/viv_info.c
@@ -0,0 +1,196 @@
+/* Get info about vivante device */
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <string.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <xf86drm.h>
+
+#include "etnaviv_drm.h"
+#include "hw/common.xml.h"
+
+#ifdef __GNUC__
+#define __maybe_unused __attribute__((unused))
+#else
+#define __maybe_unused
+#endif
+
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+struct feature {
+	uint32_t mask;
+	const char *name;
+};
+
+#include "features.h"
+
+static void print_features(uint32_t feature, const struct feature *f, size_t n)
+{
+	unsigned int i = 0;
+	while (n--) {
+		bool flag = feature & f->mask;
+	        printf("  %c %2u:%-32s\n",
+			flag ? '+' : '-', i, f->name);
+	        f++;
+	        i++;
+	}
+	printf("\n");
+}
+
+struct param {
+	uint32_t param;
+	const char *format;
+	struct feature *tbl;
+	size_t tbl_sz;
+	void (*decode)(uint32_t value);
+};
+
+static struct param params[] = {
+	{
+		.param = ETNAVIV_PARAM_GPU_MODEL,
+		.format = "Chip model: GC%x\n",
+	}, {
+		.param = ETNAVIV_PARAM_GPU_REVISION,
+		.format = "Chip revision: 0x%04x\n",
+	}, {
+		.param = ETNAVIV_PARAM_GPU_FEATURES_0,
+		.format = "Chip features: 0x%08x\n",
+		.tbl = vivante_chipFeatures,
+		.tbl_sz = ARRAY_SIZE(vivante_chipFeatures),
+	}, {
+		.param = ETNAVIV_PARAM_GPU_FEATURES_1,
+		.format = "Chip minor features 0: 0x%08x\n",
+		.tbl = vivante_chipMinorFeatures0,
+		.tbl_sz = ARRAY_SIZE(vivante_chipMinorFeatures0),
+	}, {
+		.param = ETNAVIV_PARAM_GPU_FEATURES_2,
+		.format = "Chip minor features 1: 0x%08x\n",
+		.tbl = vivante_chipMinorFeatures1,
+		.tbl_sz = ARRAY_SIZE(vivante_chipMinorFeatures1),
+	}, {
+		.param = ETNAVIV_PARAM_GPU_FEATURES_3,
+		.format = "Chip minor features 2: 0x%08x\n",
+		.tbl = vivante_chipMinorFeatures2,
+		.tbl_sz = ARRAY_SIZE(vivante_chipMinorFeatures2),
+	}, {
+		.param = ETNAVIV_PARAM_GPU_FEATURES_4,
+		.format = "Chip minor features 3: 0x%08x\n",
+		.tbl = vivante_chipMinorFeatures3,
+		.tbl_sz = ARRAY_SIZE(vivante_chipMinorFeatures3),
+	}, {
+		.param = ETNAVIV_PARAM_GPU_STREAM_COUNT,
+		.format = "Stream count: %u\n",
+	}, {
+		.param = ETNAVIV_PARAM_GPU_REGISTER_MAX,
+		.format = "Register max: %u\n",
+	}, {
+		.param = ETNAVIV_PARAM_GPU_THREAD_COUNT,
+		.format = "Thread count: %u\n",
+	}, {
+		.param = ETNAVIV_PARAM_GPU_SHADER_CORE_COUNT,
+		.format = "Shader core count: %u\n",
+	}, {
+		.param = ETNAVIV_PARAM_GPU_VERTEX_CACHE_SIZE,
+		.format = "Vertex cache size: %ukB\n",
+	}, {
+		.param = ETNAVIV_PARAM_GPU_VERTEX_OUTPUT_BUFFER_SIZE,
+		.format = "Vertex output buffer size: %u\n",
+	}, {
+		.param = ETNAVIV_PARAM_GPU_PIXEL_PIPES,
+		.format = "Pixel pipes: %u\n",
+	}, {
+		.param = ETNAVIV_PARAM_GPU_INSTRUCTION_COUNT,
+		.format = "Instruction count: %u\n",
+	}, {
+		.param = ETNAVIV_PARAM_GPU_NUM_CONSTANTS,
+		.format = "Num constants: %u\n",
+	}, {
+		.param = ETNAVIV_PARAM_GPU_BUFFER_SIZE,
+		.format = "Buffer size: %u\n",
+	},
+};
+
+static int open_render(void)
+{
+	drmVersionPtr version;
+	char buf[64];
+	int minor, fd, rc;
+
+	for (minor = 0; minor < 64; minor++) {
+		snprintf(buf, sizeof(buf), "%s/renderD%d",
+			 DRM_DIR_NAME, 128 + minor);
+
+		fd = open(buf, O_RDWR);
+		if (fd == -1)
+			continue;
+
+		version = drmGetVersion(fd);
+		if (version) {
+			rc = strcmp(version->name, "etnaviv");
+			drmFreeVersion(version);
+
+			if (rc == 0)
+				return fd;
+		}
+
+		close(fd);
+	}
+
+	return -1;
+}
+
+static void show_one_gpu(int fd, int pipe)
+{
+	struct drm_etnaviv_param req;
+	int i;
+
+	req.pipe = pipe;
+
+	printf("********** core: %i ***********\n", pipe);
+	printf("* Chip identity:\n");
+	for (i = 0; i < ARRAY_SIZE(params); i++) {
+		uint32_t val;
+
+		req.param = params[i].param;
+		if (drmCommandWriteRead(fd, DRM_ETNAVIV_GET_PARAM, &req, sizeof(req)))
+			continue;
+
+		val = req.value;
+
+		printf(params[i].format, val);
+		if (params[i].tbl)
+			print_features(val, params[i].tbl, params[i].tbl_sz);
+	}
+	printf("\n");
+}
+
+int main()
+{
+	struct drm_etnaviv_param req;
+	int fd, pipe;
+
+	fd = open_render();
+	if (fd == -1) {
+		perror("Cannot open device");
+		exit(1);
+	}
+
+	for (pipe = 0; pipe < 5; pipe++) {
+		req.pipe = pipe;
+		req.param = ETNAVIV_PARAM_GPU_MODEL;
+		if (drmCommandWriteRead(fd, DRM_ETNAVIV_GET_PARAM, &req, sizeof(req)))
+			continue;
+
+		show_one_gpu(fd, pipe);
+	}
+
+	close(fd);
+
+	return 0;
+}
+