Initial commit

Add sources for etna-gpu-tools

Signed-off-by: Russell King <rmk@arm.linux.org.uk>

1 files changed, 170 insertions, 0 deletions

diff --git a/diff/viv-cmd-diff.c b/diff/viv-cmd-diff.c
new file mode 100644
index 0000000..c895835
--- /dev/null
+++ b/diff/viv-cmd-diff.c
@@ -0,0 +1,170 @@
+#include <errno.h>
+#include <error.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+#include <sys/fcntl.h>
+#include <unistd.h>
+
+#include "hw/state.xml.h"
+
+enum {
+	MAX_STATE = (0xffff + 1) * 4,
+};
+
+static uint32_t address_states[] = {
+	VIVS_FE_INDEX_STREAM_BASE_ADDR,
+	VIVS_FE_VERTEX_STREAM_BASE_ADDR,
+	0x1410,
+	0x1430,
+	0x1460,
+	0x1480,
+	0x1608,
+	0x1610,
+};
+
+struct state {
+	uint32_t state[MAX_STATE];
+	uint32_t draw_op[6];
+};
+
+static int read_state(int fd, struct state *state)
+{
+	uint32_t data[0x400];
+	uint32_t word[2];
+	unsigned num, addr, i;
+	int ret;
+
+	do {
+		ret = read(fd, word, sizeof(word));
+		if (ret <= 0)
+			return ret;
+		if (ret != sizeof(word))
+			return -1;
+
+		switch (word[0] >> 27) {
+		case 0:
+			break;
+		case 1: /* load state */
+			num = (word[0] >> 16) & 0x3ff;
+			addr = word[0] & 0xffff;
+			if (addr == VIVS_FE_VERTEX_ELEMENT_CONFIG(0) >> 2)
+				memset(&state->state[0x600 >> 2], 0, sizeof(uint32_t) * 16);
+			state->state[addr++] = word[1];
+			num--;
+			if (num) {
+				i = (num + 1) & ~1;
+				ret = read(fd, data, sizeof(uint32_t) * i);
+				if (ret <= 0)
+					return ret;
+				for (i = 0; i < num; i++)
+					state->state[addr++] = data[i];
+			}
+			break;
+		case 2:
+			memset(state->state, 0xaa, sizeof(state->state));
+			break;
+		case 3:
+		case 9:
+			break;
+
+		case 5:
+			ret = read(fd, data, sizeof(uint32_t) * 2);
+			if (ret <= 0)
+				return ret;
+			state->draw_op[0] = word[0];
+			state->draw_op[1] = word[1];
+			memcpy(&state->draw_op[2], data, sizeof(uint32_t) * 2);
+			state->state[VIVS_FE_INDEX_STREAM_CONTROL >> 2] = 0;
+			return 1;
+
+		case 6:
+			ret = read(fd, data, sizeof(uint32_t) * 4);
+			if (ret <= 0)
+				return ret;
+			state->draw_op[0] = word[0];
+			state->draw_op[1] = word[1];
+			memcpy(&state->draw_op[2], data, sizeof(uint32_t) * 4);
+			return 1;
+
+		default:
+			fprintf(stderr, "Unknown opcode: %08x\n", word[0]);
+			fprintf(stderr, "Position: 0x%llx\n",
+				(unsigned long long) lseek(fd, 0, SEEK_CUR));
+			return -1;
+		}
+	} while (1);
+}
+
+static int diff_files(const char *file1, const char *file2)
+{
+	struct state state[2];
+	off_t pos[2], new_pos[2];
+	int fd[2];
+
+	fd[0] = open(file1, O_RDONLY);
+	if (fd[0] == -1)
+		error(1, errno, "%s", file1);
+	fd[1] = open(file2, O_RDONLY);
+	if (fd[1] == -1)
+		error(1, errno, "%s", file2);
+
+	memset(state, 0, sizeof(state));
+
+	do {
+		int i, ret;
+
+		for (i = 0; i < 2; i++) {
+			pos[i] = lseek(fd[i], 0, SEEK_CUR);
+			if (pos[i] == (off_t)-1)
+				error(2, errno, "lseek");
+			ret = read_state(fd[i], &state[i]);
+			if (ret < 0)
+				error(2, errno, "read");
+			if (ret == 0)
+				return 0;
+			new_pos[i] = lseek(fd[i], 0, SEEK_CUR);
+		}
+
+		for (i = 0; i < sizeof(address_states) / sizeof(uint32_t); i++) {
+			uint32_t idx = address_states[i] >> 2;
+
+			state[0].state[idx] = state[1].state[idx];
+		}
+
+		memset(&state[0].state[0x1600 >> 2], 0, 0x44);
+		memset(&state[1].state[0x1600 >> 2], 0, 0x44);
+
+		if (memcmp(state[0].state, state[1].state, sizeof(state[0].state))) {
+			printf("State differences:\n"
+			       "   %s offset 0x%llx - 0x%llx\n"
+			       "   %s offset 0x%llx - 0x%llx\n",
+			       file1, (unsigned long long)pos[0], (unsigned long long)new_pos[0],
+			       file2, (unsigned long long)pos[1], (unsigned long long)new_pos[1]);
+			for (i = 0; i < sizeof(state[0].state) / sizeof(uint32_t); i++) {
+				if (state[0].state[i] != state[1].state[i]) {
+					printf("%05x: %08x -> %08x\n",
+						i << 2, state[0].state[i], state[1].state[i]);
+					state[1].state[i] = state[0].state[i];
+				}
+			}
+		}
+		if (memcmp(state[0].draw_op, state[1].draw_op, sizeof(state[0].draw_op))) {
+			printf("Draw op differs:\n"
+			       "   %s offset 0x%llx\n"
+			       "   %s offset 0x%llx\n",
+			       file1, (unsigned long long)pos[0],
+			       file2, (unsigned long long)pos[1]);
+		}
+	} while (1);
+}
+
+int main(int argc, char *argv[])
+{
+	if (argc < 3) {
+		fprintf(stderr, "Usage: %s FILE1 FILE2\n", argv[0]);
+		return 1;
+	}
+
+	return diff_files(argv[1], argv[2]);
+}