From: Gary Guo <gary@garyguo.net>
Date: Tue, 2 Jun 2026 14:17:56 +0000 (+0100)
Subject: gpu: nova-core: convert to keyworded projection syntax
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=738a9213755ee13e0523192dfcc7c4f1d2b3f28c;p=thirdparty%2Fkernel%2Flinux.git

gpu: nova-core: convert to keyworded projection syntax

Use "build" to denote that the index bounds checking here is performed at
build time.

Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Signed-off-by: Gary Guo <gary@garyguo.net>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/20260602-projection-syntax-rework-v2-5-6989470f5440@garyguo.net
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
---

diff --git a/drivers/gpu/nova-core/gsp/cmdq.rs b/drivers/gpu/nova-core/gsp/cmdq.rs
index 275da9b1ee0e9..1c9b2085f5e4f 100644
--- a/drivers/gpu/nova-core/gsp/cmdq.rs
+++ b/drivers/gpu/nova-core/gsp/cmdq.rs
@@ -237,7 +237,7 @@ impl DmaGspMem {
         let start = gsp_mem.dma_handle();
         // Write values one by one to avoid an on-stack instance of `PteArray`.
         for i in 0..GspMem::PTE_ARRAY_SIZE {
-            dma_write!(gsp_mem, .ptes.0[i], PteArray::<0>::entry(start, i)?);
+            dma_write!(gsp_mem, .ptes.0[build: i], PteArray::<0>::entry(start, i)?);
         }
 
         dma_write!(
@@ -260,7 +260,7 @@ impl DmaGspMem {
         let rx = self.gsp_read_ptr();
 
         // Pointer to the first entry of the CPU message queue.
-        let data = ptr::project!(mut self.0.as_mut_ptr(), .cpuq.msgq.data[0]);
+        let data = ptr::project!(mut self.0.as_mut_ptr(), .cpuq.msgq.data[build: 0]);
 
         let (tail_end, wrap_end) = if rx == 0 {
             // The write area is non-wrapping, and stops at the second-to-last entry of the command
@@ -322,7 +322,7 @@ impl DmaGspMem {
         let rx = self.cpu_read_ptr();
 
         // Pointer to the first entry of the GSP message queue.
-        let data = ptr::project!(self.0.as_ptr(), .gspq.msgq.data[0]);
+        let data = ptr::project!(self.0.as_ptr(), .gspq.msgq.data[build: 0]);
 
         let (tail_end, wrap_end) = if rx <= tx {
             // Read area is non-wrapping and stops right before `tx`.