Signed-off-by: Tom St Denis <[email protected]>
---
src/app/main.c | 2 +-
src/lib/discover.c | 2 +-
src/lib/discover_by_did.c | 37 ++++++++++++++++++++++++++++++++++++-
src/lib/discover_by_name.c | 8 ++++----
4 files changed, 42 insertions(+), 7 deletions(-)
diff --git a/src/app/main.c b/src/app/main.c
index 2ecd5a39c903..e5ca9acabdd6 100644
--- a/src/app/main.c
+++ b/src/app/main.c
@@ -169,8 +169,8 @@ int main(int argc, char **argv)
if (sscanf(argv[i+1], "0x%lx",
&options.forcedid) == 0) {
strncpy(options.dev_name, argv[i+1],
sizeof(options.dev_name) - 1);
options.forcedid = 0;
- options.instance = -1;
}
+ options.instance = -1;
++i;
} else {
printf("--force requires a number/name\n");
diff --git a/src/lib/discover.c b/src/lib/discover.c
index 6613eec42d53..4af3733c8af8 100644
--- a/src/lib/discover.c
+++ b/src/lib/discover.c
@@ -138,7 +138,7 @@ struct umr_asic *umr_discover_asic(struct umr_options
*options)
}
// try to scan via debugfs
- if (!options->no_kernel) {
+ if (options->instance >= 0 && !options->no_kernel) {
asic = calloc(1, sizeof *asic);
if (asic) {
asic->instance = options->instance;
diff --git a/src/lib/discover_by_did.c b/src/lib/discover_by_did.c
index 4e7c3f43faa5..0649da90ba08 100644
--- a/src/lib/discover_by_did.c
+++ b/src/lib/discover_by_did.c
@@ -230,6 +230,41 @@ static const struct {
{ 0x687f, &umr_create_vega10 },
};
+static int find_first_did(long did)
+{
+ char name[128], device[128];
+ FILE *f, *f2;
+
+ int x;
+
+ for (x = 0; x < 16; x++) {
+ snprintf(name, sizeof(name)-1, "/sys/kernel/debug/dri/%d/name",
x);
+ f = fopen(name, "r");
+ if (f) {
+ unsigned tmp_did;
+ fscanf(f, "%*s %s", name);
+ fclose(f);
+
+ // strip off dev= for kernels > 4.7
+ if (strstr(name, "dev="))
+ memmove(name, name+4, strlen(name)-3);
+
+ snprintf(device, sizeof(device)-1,
"/sys/bus/pci/devices/%s/device", name);
+ f2 = fopen(device, "r");
+ if (f2) {
+ fscanf(f, "0x%04x", &tmp_did);
+ if (tmp_did == did) {
+ fclose(f2);
+ return x;
+ }
+ }
+ fclose(f2);
+ }
+ }
+ return -1;
+}
+
+
struct umr_asic *umr_discover_asic_by_did(struct umr_options *options, long
did)
{
unsigned x;
@@ -242,7 +277,7 @@ struct umr_asic *umr_discover_asic_by_did(struct
umr_options *options, long did)
if (asic) {
asic->did = did;
- asic->instance = options->instance;
+ asic->instance = find_first_did(did);
umr_scan_config(asic);
// set all file handles to -1 (so a call to close_asic won't
close handle 0)
diff --git a/src/lib/discover_by_name.c b/src/lib/discover_by_name.c
index c0b49ad69475..f183640567b4 100644
--- a/src/lib/discover_by_name.c
+++ b/src/lib/discover_by_name.c
@@ -68,10 +68,10 @@ struct umr_asic *umr_discover_asic_by_name(struct
umr_options *options, char *na
if (options->instance == -1) {
// try and discover an instance that works
struct umr_options tmp_opt;
- memset(&tmp_opt, 0, sizeof(tmp_opt));
- tmp_opt.forcedid = -1;
- tmp_opt.quiet = 1;
- for (x = 0; x < 10; x++) {
+ for (x = 0; x < 16; x++) {
+ memset(&tmp_opt, 0, sizeof(tmp_opt));
+ tmp_opt.quiet = 1;
+ tmp_opt.forcedid = -1;
tmp_opt.instance = x;
tmp = umr_discover_asic(&tmp_opt);
if (tmp) {
--
2.14.3
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