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/* engine.c - rmtool engine list/info via read-only GPU/engine controls. */
#include <getopt.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include "rmtool.h"
static void usage(void)
{
printf("usage: rmtool engine list [-d N|BDF] [--format=...]\n"
" rmtool engine info [-d N|BDF] -e ENGINE\n"
"ENGINE is a FIFO table name (gr, ce0, nvdec0, ...).\n");
}
static int parse_list(int argc, char **argv, struct rm_ctx *ctx)
{
static const struct option long_opts[] = {
{ "device-spec", required_argument, NULL, 'd' },
{ "format", required_argument, NULL, 'f' },
{ "device", required_argument, NULL, 1000 },
{ "help", no_argument, NULL, 'h' },
{ NULL, 0, NULL, 0 },
};
int opt;
optind = 1;
opterr = 0;
while ((opt = getopt_long(argc, argv, "d:f:h", long_opts, NULL)) != -1) {
int rc;
if (opt == 'h')
return 1;
rc = rm_apply_common_opt(ctx, opt, optarg);
if (rc < 0)
return -1;
}
if (optind < argc) {
fprintf(stderr, "rmtool: unexpected argument '%s'\n",
argv[optind]);
return -1;
}
return 0;
}
static int engine_list(struct rm_ctx *ctx)
{
NV2080_CTRL_GPU_GET_ENGINES_V2_PARAMS engines;
NV2080_FIFO_DEVICE_ENTRY *fifo;
const char *headers[] = { "IDX", "TYPE", "NAME", "PBDMAS",
"PBDMA IDS" };
char (*cells)[64];
int rc;
NvU32 status, n_fifo = 0;
unsigned int i;
fifo = calloc(1, sizeof(*fifo) * 512);
cells = calloc(1, sizeof(*cells) * (NV2080_GPU_MAX_ENGINES_LIST_SIZE *
5));
if (fifo == NULL || cells == NULL) {
free(fifo);
free(cells);
return 2;
}
rc = rm_ctx_open(ctx);
if (rc != 0) {
fprintf(stderr, "rmtool: cannot open RM client: rc=%d\n", rc);
free(fifo);
free(cells);
return 2;
}
status = rm_query_engines(ctx, &engines);
if (status != 0) {
fprintf(stderr, "rmtool: GPU_GET_ENGINES_V2: %s\n",
rm_status_str(status));
free(fifo);
free(cells);
return 2;
}
status = rm_query_fifo_table(ctx, fifo, 512, &n_fifo);
for (i = 0; i < engines.engineCount; i++) {
char type[24];
snprintf(type, sizeof(type), "0x%x", engines.engineList[i]);
snprintf(cells[i * 5 + 0], sizeof(cells[0]), "%u", i);
snprintf(cells[i * 5 + 1], sizeof(cells[0]), "%s", type);
snprintf(cells[i * 5 + 2], sizeof(cells[0]), "%s",
rm_engine_name(fifo, n_fifo, engines.engineList[i]));
snprintf(cells[i * 5 + 3], sizeof(cells[0]), "-");
snprintf(cells[i * 5 + 4], sizeof(cells[0]), "-");
}
if (status == 0) {
NvU32 j;
for (j = 0; j < n_fifo && j < engines.engineCount; j++) {
snprintf(cells[j * 5 + 2], sizeof(cells[0]), "%s",
fifo[j].engineName);
snprintf(cells[j * 5 + 3], sizeof(cells[0]), "%u",
fifo[j].numPbdmas);
snprintf(cells[j * 5 + 4], sizeof(cells[0]),
"%u,%u", fifo[j].pbdmaIds[0],
fifo[j].pbdmaIds[1]);
}
}
if (ctx->format == RM_FMT_TABLE)
printf("%u engine(s); FIFO table %s\n", engines.engineCount,
status == 0 ? "read" : "unavailable");
rm_print_table("engines", headers, &cells[0][0], sizeof(cells[0]),
(int)engines.engineCount, 5, ctx->format);
free(fifo);
free(cells);
return 0;
}
static int engine_info(struct rm_ctx *ctx, const char *want)
{
NV2080_FIFO_DEVICE_ENTRY *fifo;
struct rm_kv kv[8];
char v[8][256];
NvU32 n_fifo = 0, i;
int rc, n = 0;
NvU32 status;
fifo = calloc(1, sizeof(*fifo) * 512);
if (fifo == NULL)
return 2;
rc = rm_ctx_open(ctx);
if (rc != 0) {
fprintf(stderr, "rmtool: cannot open RM client: rc=%d\n", rc);
free(fifo);
return 2;
}
status = rm_query_fifo_table(ctx, fifo, 512, &n_fifo);
if (status != 0) {
fprintf(stderr, "rmtool: FIFO_GET_DEVICE_INFO_TABLE: %s\n",
rm_status_str(status));
free(fifo);
return 2;
}
for (i = 0; i < n_fifo; i++) {
if (strcasecmp(fifo[i].engineName, want) != 0)
continue;
snprintf(v[0], sizeof(v[0]), "%s", fifo[i].engineName);
kv[n].key = "Engine";
kv[n++].value = v[0];
snprintf(v[1], sizeof(v[1]), "%u", i);
kv[n].key = "Table index";
kv[n++].value = v[1];
snprintf(v[2], sizeof(v[2]), "%u", fifo[i].numPbdmas);
kv[n].key = "PBDMA count";
kv[n++].value = v[2];
snprintf(v[3], sizeof(v[3]), "%u,%u", fifo[i].pbdmaIds[0],
fifo[i].pbdmaIds[1]);
kv[n].key = "PBDMA ids";
kv[n++].value = v[3];
snprintf(v[4], sizeof(v[4]), "%u,%u",
fifo[i].pbdmaFaultIds[0], fifo[i].pbdmaFaultIds[1]);
kv[n].key = "PBDMA fault ids";
kv[n++].value = v[4];
snprintf(v[5], sizeof(v[5]),"%u", fifo[i].engineData[0]);
kv[n].key = "engineData[0] (type)";
kv[n++].value = v[5];
{
size_t off = 0;
unsigned int j;
for (j = 0; j < 16 && off < sizeof(v[6]); j++)
off += (size_t)snprintf(v[6] + off,
sizeof(v[6]) - off,
"%s%u", j ? "," : "",
fifo[i].engineData[j]);
}
kv[n].key = "engineData[0..15]";
kv[n++].value = v[6];
rm_print_kv("engine info (FIFO device table)", kv, n,
ctx->format);
free(fifo);
return 0;
}
fprintf(stderr, "rmtool: engine '%s' not found in FIFO table "
"(%u entries)\n", want, n_fifo);
free(fifo);
return 2;
}
int cmd_engine(int argc, char **argv, struct rm_ctx *ctx)
{
const char *want = NULL;
int rc;
if (argc < 2) {
usage();
return 2;
}
if (strcmp(argv[1], "list") == 0) {
rc = parse_list(argc - 1, argv + 1, ctx);
if (rc < 0)
return 2;
if (rc == 1) {
usage();
return 0;
}
return engine_list(ctx);
}
if (strcmp(argv[1], "info") == 0) {
int opt;
static const struct option long_opts[] = {
{ "device-spec", required_argument, NULL, 'd' },
{ "format", required_argument, NULL, 'f' },
{ "engine", required_argument, NULL, 'e' },
{ "device", required_argument, NULL, 1000 },
{ "help", no_argument, NULL, 'h' },
{ NULL, 0, NULL, 0 },
};
optind = 1;
opterr = 0;
while ((opt = getopt_long(argc - 1, argv + 1, "d:f:e:h",
long_opts, NULL)) != -1) {
if (opt == 'h') {
usage();
return 0;
}
if (opt == 'e') {
want = optarg;
continue;
}
if (rm_apply_common_opt(ctx, opt, optarg) < 0)
return 2;
}
if (want == NULL) {
usage();
return 2;
}
return engine_info(ctx, want);
}
if (strcmp(argv[1], "allocate") == 0 ||
strcmp(argv[1], "start") == 0 ||
strcmp(argv[1], "stop") == 0 ||
strcmp(argv[1], "config") == 0) {
fprintf(stderr,
"rmtool: 'engine %s' is a write/ownership operation "
"and is refused by policy (read-only host oracle). "
"See debug/risc-v-gsp-rm-vm/docs/17-RM-HARNESS.md.\n",
argv[1]);
return 4;
}
usage();
return 2;
}
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