From 826d00617c8dad9f535e98fa3191683a3af4e797 Mon Sep 17 00:00:00 2001
From: Karol Herbst <kherbst@redhat.com>
Date: Thu, 1 Aug 2024 00:02:47 +0200
Subject: [PATCH] nouveau: add nv_device_uuid

Cc: mesa-stable
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30455>
---
 src/nouveau/headers/nv_device_info.h | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/src/nouveau/headers/nv_device_info.h b/src/nouveau/headers/nv_device_info.h
index 3f4a7af5271..476de2ee3c9 100644
--- a/src/nouveau/headers/nv_device_info.h
+++ b/src/nouveau/headers/nv_device_info.h
@@ -1,6 +1,9 @@
 #ifndef NV_DEVINFO_H
 #define NV_DEVINFO_H
 
+#include <stdbool.h>
+#include <string.h>
+
 #include "util/macros.h"
 
 #define NVIDIA_VENDOR_ID 0x10de
@@ -46,4 +49,25 @@ struct nv_device_info {
    uint64_t bar_size_B;
 };
 
+static inline void
+nv_device_uuid(const struct nv_device_info *info, uint8_t *uuid, size_t len, bool vm_bind)
+{
+   uint16_t vendor_id = NVIDIA_VENDOR_ID;
+
+   assert(len >= 16);
+
+   memset(uuid, 0, len);
+   memcpy(&uuid[0], &info->chipset, 2);
+   memcpy(&uuid[2], &vendor_id, 2);
+   memcpy(&uuid[4], &info->device_id, 2);
+
+   if (info->type != NV_DEVICE_TYPE_SOC) {
+      memcpy(&uuid[6], &info->pci.domain, 2);
+      uuid[8]  = info->pci.bus;
+      uuid[9]  = info->pci.dev;
+      uuid[10] = info->pci.func;
+   }
+   uuid[11] = vm_bind;
+}
+
 #endif /* NV_DEVINFO_H */