gpu: nova-core: fb: Move PDISP register definition

Move PDISP register definition into fb module and update register
visibility.

Signed-off-by: Antonin Malzieu Ridolfi <dev@nanonej.com>
Link: https://patch.msgid.link/20260617-nova-core-regs-split-v1-1-4c7dc4450ea7@nanonej.com
[acourbot: fix rustfmt issue.]
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>

3 files changed, 27 insertions, 24 deletions

diff --git a/drivers/gpu/nova-core/fb.rs b/drivers/gpu/nova-core/fb.rs
index 725e428154cf..273cff752fae 100644
--- a/drivers/gpu/nova-core/fb.rs
+++ b/drivers/gpu/nova-core/fb.rs
@@ -23,11 +23,11 @@ use crate::{
     firmware::gsp::GspFirmware,
     gpu::Chipset,
     gsp,
-    num::FromSafeCast,
-    regs, //
+    num::FromSafeCast, //
 };
 
 mod hal;
+mod regs;
 
 /// Type holding the sysmem flush memory page, a page of memory to be written into the
 /// `NV_PFB_NISO_FLUSH_SYSMEM_ADDR*` registers and used to maintain memory coherency.
diff --git a/drivers/gpu/nova-core/fb/regs.rs b/drivers/gpu/nova-core/fb/regs.rs
new file mode 100644
index 000000000000..b2ec02f584be
--- /dev/null
+++ b/drivers/gpu/nova-core/fb/regs.rs
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0
+
+use kernel::io::register;
+
+// PDISP
+
+register! {
+    pub(super) NV_PDISP_VGA_WORKSPACE_BASE(u32) @ 0x00625f04 {
+        /// VGA workspace base address divided by 0x10000.
+        31:8    addr;
+        /// Set if the `addr` field is valid.
+        3:3     status_valid => bool;
+    }
+}
+
+impl NV_PDISP_VGA_WORKSPACE_BASE {
+    /// Returns the base address of the VGA workspace, or `None` if none exists.
+    pub(super) fn vga_workspace_addr(self) -> Option<u64> {
+        if self.status_valid() {
+            Some(u64::from(self.addr()) << 16)
+        } else {
+            None
+        }
+    }
+}
diff --git a/drivers/gpu/nova-core/regs.rs b/drivers/gpu/nova-core/regs.rs
index 3f16365d3a0e..397124f245ee 100644
--- a/drivers/gpu/nova-core/regs.rs
+++ b/drivers/gpu/nova-core/regs.rs
@@ -302,28 +302,6 @@ impl NV_USABLE_FB_SIZE_IN_MB {
     }
 }
 
-// PDISP
-
-register! {
-    pub(crate) NV_PDISP_VGA_WORKSPACE_BASE(u32) @ 0x00625f04 {
-        /// VGA workspace base address divided by 0x10000.
-        31:8    addr;
-        /// Set if the `addr` field is valid.
-        3:3     status_valid => bool;
-    }
-}
-
-impl NV_PDISP_VGA_WORKSPACE_BASE {
-    /// Returns the base address of the VGA workspace, or `None` if none exists.
-    pub(crate) fn vga_workspace_addr(self) -> Option<u64> {
-        if self.status_valid() {
-            Some(u64::from(self.addr()) << 16)
-        } else {
-            None
-        }
-    }
-}
-
 // FUSE
 
 pub(crate) const NV_FUSE_OPT_FPF_SIZE: usize = 16;