drm/xe: Print more device information in devcoredump

To properly decode batch buffer Mesa tools needs to know what
platform is this one, for now we can do that with PCI id but
already making it future proof by also printing GTs GMD version.

Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Maarten Lankhorst <dev@lankhorst.se>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240123204454.246788-5-jose.souza@intel.com

drivers/gpu/drm/xe/xe_devcoredump.c

@@ -63,6 +63,7 @@ static ssize_t xe_devcoredump_read(char *buffer, loff_t offset,
 				   size_t count, void *data, size_t datalen)
 {
 	struct xe_devcoredump *coredump = data;
+	struct xe_device *xe = coredump_to_xe(coredump);
 	struct xe_devcoredump_snapshot *ss;
 	struct drm_printer p;
 	struct drm_print_iterator iter;
@@ -89,6 +90,7 @@ static ssize_t xe_devcoredump_read(char *buffer, loff_t offset,
 	drm_printf(&p, "Snapshot time: %lld.%09ld\n", ts.tv_sec, ts.tv_nsec);
 	ts = ktime_to_timespec64(ss->boot_time);
 	drm_printf(&p, "Uptime: %lld.%09ld\n", ts.tv_sec, ts.tv_nsec);
+	xe_device_snapshot_print(xe, &p);
 
 	drm_printf(&p, "\n**** GuC CT ****\n");
 	xe_guc_ct_snapshot_print(coredump->snapshot.ct, &p);

drivers/gpu/drm/xe/xe_device.c

@@ -727,3 +727,23 @@ void xe_device_mem_access_put(struct xe_device *xe)
 
 	xe_assert(xe, ref >= 0);
 }
+
+void xe_device_snapshot_print(struct xe_device *xe, struct drm_printer *p)
+{
+	struct xe_gt *gt;
+	u8 id;
+
+	drm_printf(p, "PCI ID: 0x%04x\n", xe->info.devid);
+	drm_printf(p, "PCI revision: 0x%02x\n", xe->info.revid);
+
+	for_each_gt(gt, xe, id) {
+		drm_printf(p, "GT id: %u\n", id);
+		drm_printf(p, "\tType: %s\n",
+			   gt->info.type == XE_GT_TYPE_MAIN ? "main" : "media");
+		drm_printf(p, "\tIP ver: %u.%u.%u\n",
+			   REG_FIELD_GET(GMD_ID_ARCH_MASK, gt->info.gmdid),
+			   REG_FIELD_GET(GMD_ID_RELEASE_MASK, gt->info.gmdid),
+			   REG_FIELD_GET(GMD_ID_REVID, gt->info.gmdid));
+		drm_printf(p, "\tCS reference clock: %u\n", gt->info.reference_clock);
+	}
+}

drivers/gpu/drm/xe/xe_device.h

@@ -175,4 +175,6 @@ static inline bool xe_device_has_memirq(struct xe_device *xe)
 
 u32 xe_device_ccs_bytes(struct xe_device *xe, u64 size);
 
+void xe_device_snapshot_print(struct xe_device *xe, struct drm_printer *p);
+
 #endif