[igt-dev] [PATCH i-g-t v5 1/3] lib/igt_device_scan: Remember vendor/device for pci devices
Zbigniew Kempczyński
zbigniew.kempczynski at intel.com
Thu Nov 19 07:41:37 UTC 2020
If we want to use pci device id for not opened device we need to
keep it in card structure.
Export igt_device_get_pretty_name() function to the caller to
allow return pretty name (for lsgpu, intel_gpu_top and others).
Signed-off-by: Zbigniew Kempczyński <zbigniew.kempczynski at intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
Cc: Petri Latvala <petri.latvala at intel.com>
---
lib/igt_device_scan.c | 149 ++++++++++++++++++++++++++++++++++++++----
lib/igt_device_scan.h | 3 +
2 files changed, 139 insertions(+), 13 deletions(-)
diff --git a/lib/igt_device_scan.c b/lib/igt_device_scan.c
index e97f7163..209a09bc 100644
--- a/lib/igt_device_scan.c
+++ b/lib/igt_device_scan.c
@@ -25,7 +25,9 @@
#include "igt_core.h"
#include "igt_device_scan.h"
#include "igt_list.h"
+#include "intel_chipset.h"
+#include <ctype.h>
#include <dirent.h>
#include <fcntl.h>
#include <glib.h>
@@ -178,12 +180,43 @@ static struct {
bool devs_scanned;
} igt_devs;
+typedef char *(*devname_fn)(uint16_t, uint16_t);
+
+static char *devname_hex(uint16_t vendor, uint16_t device)
+{
+ char *s;
+
+ igt_assert(asprintf(&s, "%04x:%04x", vendor, device) == 9);
+
+ return s;
+}
+
+static char *devname_intel(uint16_t vendor, uint16_t device)
+{
+ const struct intel_device_info *info = intel_get_device_info(device);
+ char *devname, *s;
+
+ if (info->codename) {
+ devname = strdup(info->codename);
+ devname[0] = toupper(devname[0]);
+ asprintf(&s, "Intel %s (Gen%u)", devname, ffs(info->gen));
+ } else {
+ devname = devname_hex(vendor, device);
+ asprintf(&s, "Intel %s", devname);
+ }
+
+ free(devname);
+
+ return s;
+}
+
static struct {
const char *name;
const char *vendor_id;
+ devname_fn devname;
} pci_vendor_mapping[] = {
- { "intel", "8086" },
- { "amd", "1002" },
+ { "intel", "8086", devname_intel },
+ { "amd", "1002", devname_hex },
{ NULL, },
};
@@ -198,6 +231,42 @@ static const char *get_pci_vendor_id_by_name(const char *name)
return NULL;
}
+static devname_fn get_pci_vendor_device_fn(uint16_t vendor)
+{
+ char vendorstr[5];
+
+ snprintf(vendorstr, sizeof(vendorstr), "%04x", vendor);
+
+ for (typeof(*pci_vendor_mapping) *vm = pci_vendor_mapping; vm->name; vm++) {
+ if (!strcasecmp(vendorstr, vm->vendor_id))
+ return vm->devname;
+ }
+
+ return devname_hex;
+}
+
+static void get_pci_vendor_device(const struct igt_device *dev,
+ uint16_t *vendorp, uint16_t *devicep)
+{
+ igt_assert(dev && dev->vendor && dev->device);
+ igt_assert(vendorp && devicep);
+
+ igt_assert(sscanf(dev->vendor, "%hx", vendorp) == 1);
+ igt_assert(sscanf(dev->device, "%hx", devicep) == 1);
+}
+
+static char *__pci_pretty_name(uint16_t vendor, uint16_t device, bool numeric)
+{
+ devname_fn fn;
+
+ if (!numeric)
+ fn = get_pci_vendor_device_fn(vendor);
+ else
+ fn = devname_hex;
+
+ return fn(vendor, device);
+}
+
/* Reading sysattr values can take time (even seconds),
* we want to avoid reading such keys.
*/
@@ -446,23 +515,44 @@ static bool is_vendor_matched(struct igt_device *dev, const char *vendor)
return !strcasecmp(dev->vendor, vendor_id);
}
+static char *safe_strncpy(char *dst, const char *src, int n)
+{
+ char *s;
+
+ igt_assert(n > 0);
+ igt_assert(dst && src);
+
+ s = strncpy(dst, src, n - 1);
+ s[n - 1] = '\0';
+
+ return s;
+}
+
static void
__copy_dev_to_card(struct igt_device *dev, struct igt_device_card *card)
{
if (dev->subsystem != NULL)
- strncpy(card->subsystem, dev->subsystem,
- sizeof(card->subsystem) - 1);
+ safe_strncpy(card->subsystem, dev->subsystem,
+ sizeof(card->subsystem));
if (dev->drm_card != NULL)
- strncpy(card->card, dev->drm_card, sizeof(card->card) - 1);
+ safe_strncpy(card->card, dev->drm_card, sizeof(card->card));
if (dev->drm_render != NULL)
- strncpy(card->render, dev->drm_render,
- sizeof(card->render) - 1);
+ safe_strncpy(card->render, dev->drm_render,
+ sizeof(card->render));
if (dev->pci_slot_name != NULL)
- strncpy(card->pci_slot_name, dev->pci_slot_name,
- PCI_SLOT_NAME_SIZE + 1);
+ safe_strncpy(card->pci_slot_name, dev->pci_slot_name,
+ sizeof(card->pci_slot_name));
+
+ if (dev->vendor != NULL)
+ if (sscanf(dev->vendor, "%hx", &card->pci_vendor) != 1)
+ card->pci_vendor = 0;
+
+ if (dev->device != NULL)
+ if (sscanf(dev->device, "%hx", &card->pci_device) != 1)
+ card->pci_device = 0;
}
/*
@@ -852,6 +942,7 @@ static void __print_filter(char *buf, int len,
};
}
+#define VENDOR_SIZE 30
static void
igt_devs_print_user(struct igt_list_head *view,
const struct igt_devices_print_format *fmt)
@@ -883,11 +974,19 @@ igt_devs_print_user(struct igt_list_head *view,
continue;
if (pci_dev) {
+ uint16_t vendor, device;
+ char *devname;
+
+ get_pci_vendor_device(pci_dev, &vendor, &device);
+ devname = __pci_pretty_name(vendor, device, fmt->numeric);
+
__print_filter(filter, sizeof(filter), fmt, pci_dev,
false);
- printf("%-24s%4s:%4s %s\n",
- drm_name, pci_dev->vendor, pci_dev->device,
- filter);
+
+ printf("%-24s %-*s %s\n",
+ drm_name, VENDOR_SIZE, devname, filter);
+
+ free(devname);
} else {
__print_filter(filter, sizeof(filter), fmt, dev, false);
printf("%-24s %s\n", drm_name, filter);
@@ -919,7 +1018,7 @@ igt_devs_print_user(struct igt_list_head *view,
if (fmt->option != IGT_PRINT_PCI) {
__print_filter(filter, sizeof(filter), fmt,
dev2, true);
- printf(" %s\n", filter);
+ printf("%-*s %s\n", VENDOR_SIZE, "", filter);
} else {
printf("\n");
}
@@ -1479,6 +1578,30 @@ bool igt_device_card_match_pci(const char *filter,
return __igt_device_card_match(filter, card, true);
}
+/**
+ * igt_device_get_pretty_name
+ * @card: pointer to igt_device_card struct
+ *
+ * For card function returns allocated string having pretty name
+ * or vendor:device as hex if no backend pretty-resolver is implemented.
+ *
+ * Returns: newly allocated string.
+ */
+char *igt_device_get_pretty_name(struct igt_device_card *card, bool numeric)
+{
+ char *devname;
+
+ igt_assert(card);
+
+ if (strlen(card->pci_slot_name))
+ devname = __pci_pretty_name(card->pci_vendor, card->pci_device,
+ numeric);
+ else
+ devname = strdup(card->subsystem);
+
+ return devname;
+}
+
/**
* igt_open_card:
* @card: pointer to igt_device_card structure
diff --git a/lib/igt_device_scan.h b/lib/igt_device_scan.h
index bb4be723..5f583a06 100644
--- a/lib/igt_device_scan.h
+++ b/lib/igt_device_scan.h
@@ -49,6 +49,7 @@ enum igt_devices_print_option {
struct igt_devices_print_format {
enum igt_devices_print_type type;
enum igt_devices_print_option option;
+ bool numeric;
};
#define INTEGRATED_I915_GPU_PCI_ID "0000:00:02.0"
@@ -58,6 +59,7 @@ struct igt_device_card {
char card[NAME_MAX];
char render[NAME_MAX];
char pci_slot_name[PCI_SLOT_NAME_SIZE+1];
+ uint16_t pci_vendor, pci_device;
};
void igt_devices_scan(bool force);
@@ -84,6 +86,7 @@ bool igt_device_card_match_pci(const char *filter,
struct igt_device_card *card);
bool igt_device_find_first_i915_discrete_card(struct igt_device_card *card);
bool igt_device_find_integrated_card(struct igt_device_card *card);
+char *igt_device_get_pretty_name(struct igt_device_card *card, bool numeric);
int igt_open_card(struct igt_device_card *card);
int igt_open_render(struct igt_device_card *card);
--
2.26.0
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