linux-kernel - [PATCH] drm/tyr: rename pad0 to selected

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Message-ID: <20260120-tyr-pad0-coherency-v1-1-91f40e56c67a@google.com>
Date: Tue, 20 Jan 2026 10:34:58 +0000
From: Alice Ryhl <aliceryhl@...gle.com>
To: Daniel Almeida <daniel.almeida@...labora.com>, 
	Deborah Brouwer <deborah.brouwer@...labora.com>, Danilo Krummrich <dakr@...nel.org>
Cc: Mark Brown <broonie@...nel.org>, dri-devel@...ts.freedesktop.org, 
	linux-kernel@...r.kernel.org, rust-for-linux@...r.kernel.org, 
	Alice Ryhl <aliceryhl@...gle.com>
Subject: [PATCH] drm/tyr: rename pad0 to selected_coherency

This applies the uapi change in commit ea78ec982653 ("drm/panthor:
Expose the selected coherency protocol to the UMD") to the Tyr driver as
well.

Once this is merged with drm-rust-next, this kind of change to the uapi
struct is automatically reflected in the Tyr driver's GpuInfo. [1]

Link: https://lore.kernel.org/r/aW8-oH7dtp-OTAZC@google.com [1]
Signed-off-by: Alice Ryhl <aliceryhl@...gle.com>
---
For drm-misc rather than drm-rust.
---
 drivers/gpu/drm/tyr/gpu.rs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/tyr/gpu.rs b/drivers/gpu/drm/tyr/gpu.rs
index 6c582910dd5d93006ea0ba10f876a487b156e313..fb7ef714540218f7d9b742021af327e1467076f7 100644
--- a/drivers/gpu/drm/tyr/gpu.rs
+++ b/drivers/gpu/drm/tyr/gpu.rs
@@ -8,6 +8,7 @@
 use kernel::prelude::*;
 use kernel::time;
 use kernel::transmute::AsBytes;
+use kernel::uapi;
 
 use crate::driver::IoMem;
 use crate::regs;
@@ -34,7 +35,7 @@ pub(crate) struct GpuInfo {
     pub(crate) coherency_features: u32,
     pub(crate) texture_features: [u32; 4],
     pub(crate) as_present: u32,
-    pub(crate) pad0: u32,
+    pub(crate) selected_coherency: u32,
     pub(crate) shader_present: u64,
     pub(crate) l2_present: u64,
     pub(crate) tiler_present: u64,
@@ -89,7 +90,7 @@ pub(crate) fn new(dev: &Device<Bound>, iomem: &Devres<IoMem>) -> Result<Self> {
             // TODO: Add texture_features_{1,2,3}.
             texture_features: [texture_features, 0, 0, 0],
             as_present,
-            pad0: 0,
+            selected_coherency: uapi::drm_panthor_gpu_coherency_DRM_PANTHOR_GPU_COHERENCY_NONE,
             shader_present,
             l2_present,
             tiler_present,

---
base-commit: d1c0978a7e7864fcaa7cdd562a8f938afcd2ad39
change-id: 20260120-tyr-pad0-coherency-70dd5257e56d

Best regards,
-- 
Alice Ryhl <aliceryhl@...gle.com>