Bug 1972160 - fix(webgpu): backport wgpu_hal::vulkan::drm OpenBSD fix for ESR140 a=pascalc

Backports //just// the changes made in [wgpu#7810](https://github.com/gfx-rs/wgpu/pull/7810), but on the current base for WGPU being consumed by ESR 140. The commit hash is anchored forever to the official WGPU repository via [wgpu#7896](https://github.com/gfx-rs/wgpu/pull/7896).

This WGPU change was introduced into Nightly with bug 1974058, among others.

Differential Revision: https://phabricator.services.mozilla.com/D256450

.cargo/config.toml.in

@@ -40,9 +40,9 @@ git = "https://github.com/franziskuskiefer/cose-rust"
 rev = "43c22248d136c8b38fe42ea709d08da6355cf04b"
 replace-with = "vendored-sources"
 
-[source."git+https://github.com/gfx-rs/wgpu?rev=85001b2436f686451d6d783225311c06b60e6680"]
+[source."git+https://github.com/gfx-rs/wgpu?rev=88862f1fa3fd0f0c1010e9fc999dcfe47b5ae8fc"]
 git = "https://github.com/gfx-rs/wgpu"
-rev = "85001b2436f686451d6d783225311c06b60e6680"
+rev = "88862f1fa3fd0f0c1010e9fc999dcfe47b5ae8fc"
 replace-with = "vendored-sources"
 
 [source."git+https://github.com/glandium/rust-objc?rev=4de89f5aa9851ceca4d40e7ac1e2759410c04324"]

Cargo.lock

@@ -4654,7 +4654,7 @@ checksum = "a2983372caf4480544083767bf2d27defafe32af49ab4df3a0b7fc90793a3664"
 [[package]]
 name = "naga"
 version = "25.0.0"
-source = "git+https://github.com/gfx-rs/wgpu?rev=85001b2436f686451d6d783225311c06b60e6680#85001b2436f686451d6d783225311c06b60e6680"
+source = "git+https://github.com/gfx-rs/wgpu?rev=88862f1fa3fd0f0c1010e9fc999dcfe47b5ae8fc#88862f1fa3fd0f0c1010e9fc999dcfe47b5ae8fc"
 dependencies = [
  "arrayvec",
  "bit-set",
@@ -7611,7 +7611,7 @@ dependencies = [
 [[package]]
 name = "wgpu-core"
 version = "25.0.0"
-source = "git+https://github.com/gfx-rs/wgpu?rev=85001b2436f686451d6d783225311c06b60e6680#85001b2436f686451d6d783225311c06b60e6680"
+source = "git+https://github.com/gfx-rs/wgpu?rev=88862f1fa3fd0f0c1010e9fc999dcfe47b5ae8fc#88862f1fa3fd0f0c1010e9fc999dcfe47b5ae8fc"
 dependencies = [
  "arrayvec",
  "bit-set",
@@ -7641,7 +7641,7 @@ dependencies = [
 [[package]]
 name = "wgpu-core-deps-apple"
 version = "25.0.0"
-source = "git+https://github.com/gfx-rs/wgpu?rev=85001b2436f686451d6d783225311c06b60e6680#85001b2436f686451d6d783225311c06b60e6680"
+source = "git+https://github.com/gfx-rs/wgpu?rev=88862f1fa3fd0f0c1010e9fc999dcfe47b5ae8fc#88862f1fa3fd0f0c1010e9fc999dcfe47b5ae8fc"
 dependencies = [
  "wgpu-hal",
 ]
@@ -7649,7 +7649,7 @@ dependencies = [
 [[package]]
 name = "wgpu-core-deps-windows-linux-android"
 version = "25.0.0"
-source = "git+https://github.com/gfx-rs/wgpu?rev=85001b2436f686451d6d783225311c06b60e6680#85001b2436f686451d6d783225311c06b60e6680"
+source = "git+https://github.com/gfx-rs/wgpu?rev=88862f1fa3fd0f0c1010e9fc999dcfe47b5ae8fc#88862f1fa3fd0f0c1010e9fc999dcfe47b5ae8fc"
 dependencies = [
  "wgpu-hal",
 ]
@@ -7657,7 +7657,7 @@ dependencies = [
 [[package]]
 name = "wgpu-hal"
 version = "25.0.0"
-source = "git+https://github.com/gfx-rs/wgpu?rev=85001b2436f686451d6d783225311c06b60e6680#85001b2436f686451d6d783225311c06b60e6680"
+source = "git+https://github.com/gfx-rs/wgpu?rev=88862f1fa3fd0f0c1010e9fc999dcfe47b5ae8fc#88862f1fa3fd0f0c1010e9fc999dcfe47b5ae8fc"
 dependencies = [
  "android_system_properties",
  "arrayvec",
@@ -7693,7 +7693,7 @@ dependencies = [
 [[package]]
 name = "wgpu-types"
 version = "25.0.0"
-source = "git+https://github.com/gfx-rs/wgpu?rev=85001b2436f686451d6d783225311c06b60e6680#85001b2436f686451d6d783225311c06b60e6680"
+source = "git+https://github.com/gfx-rs/wgpu?rev=88862f1fa3fd0f0c1010e9fc999dcfe47b5ae8fc#88862f1fa3fd0f0c1010e9fc999dcfe47b5ae8fc"
 dependencies = [
  "bitflags 2.9.0",
  "bytemuck",

gfx/wgpu_bindings/Cargo.toml

@@ -17,7 +17,7 @@ default = []
 [dependencies.wgc]
 package = "wgpu-core"
 git = "https://github.com/gfx-rs/wgpu"
-rev = "85001b2436f686451d6d783225311c06b60e6680"
+rev = "88862f1fa3fd0f0c1010e9fc999dcfe47b5ae8fc"
 # TODO: remove the replay feature on the next update containing https://github.com/gfx-rs/wgpu/pull/5182
 features = [
   "serde",
@@ -33,32 +33,32 @@ features = [
 [target.'cfg(any(target_os = "macos", target_os = "ios"))'.dependencies.wgc]
 package = "wgpu-core"
 git = "https://github.com/gfx-rs/wgpu"
-rev = "85001b2436f686451d6d783225311c06b60e6680"
+rev = "88862f1fa3fd0f0c1010e9fc999dcfe47b5ae8fc"
 features = ["metal"]
 
 # We want the wgpu-core Direct3D backends on Windows.
 [target.'cfg(windows)'.dependencies.wgc]
 package = "wgpu-core"
 git = "https://github.com/gfx-rs/wgpu"
-rev = "85001b2436f686451d6d783225311c06b60e6680"
+rev = "88862f1fa3fd0f0c1010e9fc999dcfe47b5ae8fc"
 features = ["dx12"]
 
 # We want the wgpu-core Vulkan backend on Linux and Windows.
 [target.'cfg(any(windows, all(unix, not(any(target_os = "macos", target_os = "ios")))))'.dependencies.wgc]
 package = "wgpu-core"
 git = "https://github.com/gfx-rs/wgpu"
-rev = "85001b2436f686451d6d783225311c06b60e6680"
+rev = "88862f1fa3fd0f0c1010e9fc999dcfe47b5ae8fc"
 features = ["vulkan"]
 
 [dependencies.wgt]
 package = "wgpu-types"
 git = "https://github.com/gfx-rs/wgpu"
-rev = "85001b2436f686451d6d783225311c06b60e6680"
+rev = "88862f1fa3fd0f0c1010e9fc999dcfe47b5ae8fc"
 
 [dependencies.wgh]
 package = "wgpu-hal"
 git = "https://github.com/gfx-rs/wgpu"
-rev = "85001b2436f686451d6d783225311c06b60e6680"
+rev = "88862f1fa3fd0f0c1010e9fc999dcfe47b5ae8fc"
 features = ["device_lost_panic", "internal_error_panic"]
 
 [target.'cfg(windows)'.dependencies]

gfx/wgpu_bindings/moz.yaml

@@ -8,8 +8,8 @@ origin:
   name: wgpu
   description: A cross-platform pure-Rust graphics API, modeled on the WebGPU standard
   url: https://github.com/gfx-rs/wgpu
-  release: 85001b2436f686451d6d783225311c06b60e6680 (Tue May 13 22:52:49 2025 -0400)
+  release: 88862f1fa3fd0f0c1010e9fc999dcfe47b5ae8fc (2025-07-08T13:16:29Z).
-  revision: 85001b2436f686451d6d783225311c06b60e6680
+  revision: 88862f1fa3fd0f0c1010e9fc999dcfe47b5ae8fc
   license: ['MIT', 'Apache-2.0']
 
 updatebot:

supply-chain/audits.toml

@@ -3806,11 +3806,11 @@ delta = "24.0.0 -> 25.0.0"
 [[audits.naga]]
 who = [
     "Teodor Tanasoaia <ttanasoaia@mozilla.com>",
-    "Erich Gubler <erichdongubler@gmail.com>",
     "Jim Blandy <jimb@red-bean.com>",
+    "Erich Gubler <erichdongubler@gmail.com>",
 ]
 criteria = "safe-to-deploy"
-delta = "25.0.0 -> 25.0.0@git:85001b2436f686451d6d783225311c06b60e6680"
+delta = "25.0.0 -> 25.0.0@git:88862f1fa3fd0f0c1010e9fc999dcfe47b5ae8fc"
 importable = false
 
 [[audits.net2]]
@@ -6106,11 +6106,11 @@ delta = "24.0.0 -> 25.0.0"
 [[audits.wgpu-core]]
 who = [
     "Teodor Tanasoaia <ttanasoaia@mozilla.com>",
-    "Erich Gubler <erichdongubler@gmail.com>",
     "Jim Blandy <jimb@red-bean.com>",
+    "Erich Gubler <erichdongubler@gmail.com>",
 ]
 criteria = "safe-to-deploy"
-delta = "25.0.0 -> 25.0.0@git:85001b2436f686451d6d783225311c06b60e6680"
+delta = "25.0.0 -> 25.0.0@git:88862f1fa3fd0f0c1010e9fc999dcfe47b5ae8fc"
 importable = false
 
 [[audits.wgpu-core-deps-apple]]
@@ -6121,11 +6121,11 @@ version = "25.0.0"
 [[audits.wgpu-core-deps-apple]]
 who = [
     "Teodor Tanasoaia <ttanasoaia@mozilla.com>",
-    "Erich Gubler <erichdongubler@gmail.com>",
     "Jim Blandy <jimb@red-bean.com>",
+    "Erich Gubler <erichdongubler@gmail.com>",
 ]
 criteria = "safe-to-deploy"
-delta = "25.0.0 -> 25.0.0@git:85001b2436f686451d6d783225311c06b60e6680"
+delta = "25.0.0 -> 25.0.0@git:88862f1fa3fd0f0c1010e9fc999dcfe47b5ae8fc"
 importable = false
 
 [[audits.wgpu-core-deps-windows-linux-android]]
@@ -6136,11 +6136,11 @@ version = "25.0.0"
 [[audits.wgpu-core-deps-windows-linux-android]]
 who = [
     "Teodor Tanasoaia <ttanasoaia@mozilla.com>",
-    "Erich Gubler <erichdongubler@gmail.com>",
     "Jim Blandy <jimb@red-bean.com>",
+    "Erich Gubler <erichdongubler@gmail.com>",
 ]
 criteria = "safe-to-deploy"
-delta = "25.0.0 -> 25.0.0@git:85001b2436f686451d6d783225311c06b60e6680"
+delta = "25.0.0 -> 25.0.0@git:88862f1fa3fd0f0c1010e9fc999dcfe47b5ae8fc"
 importable = false
 
 [[audits.wgpu-hal]]
@@ -6229,11 +6229,11 @@ delta = "24.0.0 -> 25.0.0"
 [[audits.wgpu-hal]]
 who = [
     "Teodor Tanasoaia <ttanasoaia@mozilla.com>",
-    "Erich Gubler <erichdongubler@gmail.com>",
     "Jim Blandy <jimb@red-bean.com>",
+    "Erich Gubler <erichdongubler@gmail.com>",
 ]
 criteria = "safe-to-deploy"
-delta = "25.0.0 -> 25.0.0@git:85001b2436f686451d6d783225311c06b60e6680"
+delta = "25.0.0 -> 25.0.0@git:88862f1fa3fd0f0c1010e9fc999dcfe47b5ae8fc"
 importable = false
 
 [[audits.wgpu-types]]
@@ -6317,11 +6317,11 @@ delta = "24.0.0 -> 25.0.0"
 [[audits.wgpu-types]]
 who = [
     "Teodor Tanasoaia <ttanasoaia@mozilla.com>",
-    "Erich Gubler <erichdongubler@gmail.com>",
     "Jim Blandy <jimb@red-bean.com>",
+    "Erich Gubler <erichdongubler@gmail.com>",
 ]
 criteria = "safe-to-deploy"
-delta = "25.0.0 -> 25.0.0@git:85001b2436f686451d6d783225311c06b60e6680"
+delta = "25.0.0 -> 25.0.0@git:88862f1fa3fd0f0c1010e9fc999dcfe47b5ae8fc"
 importable = false
 
 [[audits.whatsys]]

supply-chain/imports.lock

@@ -927,36 +927,12 @@ start = "2020-01-14"
 end = "2025-07-30"
 notes = "I am an author of this crate"
 
-[[audits.bytecode-alliance.wildcard-audits.wasm-encoder]]
-who = "Alex Crichton <alex@alexcrichton.com>"
-criteria = "safe-to-deploy"
-user-id = 73222 # wasmtime-publish
-start = "2023-01-01"
-end = "2025-05-08"
-notes = """
-The Bytecode Alliance uses the `wasmtime-publish` crates.io account to automate
-publication of this crate from CI. This repository requires all PRs are reviewed
-by a Bytecode Alliance maintainer and it owned by the Bytecode Alliance itself.
-"""
-
 [[audits.bytecode-alliance.wildcard-audits.wasmparser]]
 who = "Alex Crichton <alex@alexcrichton.com>"
 criteria = "safe-to-deploy"
 user-id = 73222 # wasmtime-publish
 start = "2023-01-01"
-end = "2025-05-08"
+end = "2026-06-03"
-notes = """
-The Bytecode Alliance uses the `wasmtime-publish` crates.io account to automate
-publication of this crate from CI. This repository requires all PRs are reviewed
-by a Bytecode Alliance maintainer and it owned by the Bytecode Alliance itself.
-"""
-
-[[audits.bytecode-alliance.wildcard-audits.wast]]
-who = "Alex Crichton <alex@alexcrichton.com>"
-criteria = "safe-to-deploy"
-user-id = 73222 # wasmtime-publish
-start = "2023-01-01"
-end = "2025-05-08"
 notes = """
 The Bytecode Alliance uses the `wasmtime-publish` crates.io account to automate
 publication of this crate from CI. This repository requires all PRs are reviewed
@@ -968,7 +944,7 @@ who = "Alex Crichton <alex@alexcrichton.com>"
 criteria = "safe-to-deploy"
 user-id = 73222 # wasmtime-publish
 start = "2023-01-01"
-end = "2025-05-08"
+end = "2026-06-03"
 notes = """
 The Bytecode Alliance uses the `wasmtime-publish` crates.io account to automate
 publication of this crate from CI. This repository requires all PRs are reviewed

third_party/rust/wgpu-hal/src/vulkan/drm.rs

@@ -5,6 +5,15 @@ use core::mem::MaybeUninit;
 
 use ash::{ext, khr, vk};
 
+macro_rules! to_u64 {
+    ($expr:expr) => {{
+        #[allow(trivial_numeric_casts)]
+        let expr = $expr as u64;
+        assert!(size_of_val(&expr) <= size_of::<u64>());
+        expr
+    }};
+}
+
 impl super::Instance {
     /// Creates a new surface from the given drm configuration.
     ///
@@ -77,12 +86,18 @@ impl super::Instance {
             let render_devid =
                 libc::makedev(drm_props.render_major as _, drm_props.render_minor as _);
 
-            // Various platforms use different widths between `dev_t` and `c_int`, so just
+            // On most platforms, both `*_devid`s and `st_rdev` are `dev_t`s (which is generally
-            // force-convert to `u64` to keep things portable.
+            // observed to be an unsigned integral type no greater than 64 bits). However, on some
+            // platforms, there divergences from this pattern:
+            //
+            // - `armv7-linux-androideabi`: `dev_t` is `c_ulong`, and `*_devid`s are `dev_t`, but
+            //   `st_rdev` is `c_ulonglong`. So, we can't just do a `==` comparison.
+            // - OpenBSD has `dev_t` on both sides, but is `i32` (N.B., unsigned). Therefore, we
+            //   can't just use `u64::from`.
             #[allow(clippy::useless_conversion)]
             if [primary_devid, render_devid]
-                .map(u64::from)
+                .map(|devid| to_u64!(devid))
-                .contains(&drm_stat.st_rdev)
+                .contains(&to_u64!(drm_stat.st_rdev))
             {
                 physical_device = Some(device)
             }