From: Gary Guo <gary@kernel.org>
To: Danilo Krummrich <dakr@kernel.org>,
Alice Ryhl <aliceryhl@google.com>,
Daniel Almeida <daniel.almeida@collabora.com>,
David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>
Cc: Gary Guo <gary@garyguo.net>,
dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: [PATCH] drm/tyr: use `bitfield!` instead of `register!` for non-registers
Date: Thu, 10 Sep 2026 17:57:33 +0100 [thread overview]
Message-ID: <20260910165734.80378-1-gary@kernel.org> (raw)
From: Gary Guo <gary@garyguo.net>
`SectionFlags` and `MMU_MEMATTR_STAGE1` are not registers themselves. Use
`bitfield!` directly.
Signed-off-by: Gary Guo <gary@garyguo.net>
---
drivers/gpu/drm/tyr/fw.rs | 12 ++++--------
drivers/gpu/drm/tyr/regs.rs | 11 +++++------
2 files changed, 9 insertions(+), 14 deletions(-)
diff --git a/drivers/gpu/drm/tyr/fw.rs b/drivers/gpu/drm/tyr/fw.rs
index 7edb5eff1707..aea151ff1f93 100644
--- a/drivers/gpu/drm/tyr/fw.rs
+++ b/drivers/gpu/drm/tyr/fw.rs
@@ -14,6 +14,7 @@
//! [`Section`]: crate::fw::Section
use kernel::{
+ bitfield,
device::{
Bound,
Device, //
@@ -27,7 +28,6 @@
},
num::Bounded,
prelude::*,
- register,
str::CString,
sync::{
Arc,
@@ -39,8 +39,7 @@
use crate::{
driver::{
IoMem,
- TyrDrmDevice,
- TyrRegisters, //
+ TyrDrmDevice, //
},
fw::parser::{
FwParser,
@@ -101,11 +100,8 @@ fn from(value: CacheMode) -> Self {
}
}
-register! {
- base: TyrRegisters;
-
- #[allow(non_upper_case_globals)]
- pub(super) SectionFlags(u32) @ 0x0 {
+bitfield! {
+ pub(super) struct SectionFlags(u32) {
0:0 read => bool;
1:1 write => bool;
2:2 exec => bool;
diff --git a/drivers/gpu/drm/tyr/regs.rs b/drivers/gpu/drm/tyr/regs.rs
index 0c419c4e1186..6f626957a010 100644
--- a/drivers/gpu/drm/tyr/regs.rs
+++ b/drivers/gpu/drm/tyr/regs.rs
@@ -986,6 +986,7 @@ pub(crate) mod mmu_control {
/// This array contains 16 instances of the MMU_AS_CONTROL register page.
pub(crate) mod mmu_as_control {
use kernel::{
+ bitfield,
num::Bounded,
prelude::*,
register, //
@@ -1130,14 +1131,12 @@ fn from(val: MemoryType) -> Self {
}
}
- register! {
- base: TyrRegisters;
-
+ bitfield! {
/// Stage 1 memory attributes (8-bit bitfield).
///
- /// This is not an actual register, but a bitfield definition used by the MEMATTR
- /// register. Each of the 8 bytes in MEMATTR follows this layout.
- MMU_MEMATTR_STAGE1(u8) @ 0x0 {
+ /// Each of the 8 bytes in MEMATTR follows this layout.
+ #[allow(non_camel_case_types)]
+ struct MMU_MEMATTR_STAGE1(u8) {
/// Inner cache write allocation policy.
0:0 alloc_w => bool;
/// Inner cache read allocation policy.
base-commit: 73e5616f3d197c1af5a04a481fe0f13aa3913bd1
--
2.54.0
reply other threads:[~2026-09-10 16:57 UTC|newest]
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