nil: Add a new GOBType for Z24 on Blackwell+

It's a different memory layout from Ada and earlier.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35807>

src/nouveau/nil/modifiers.rs

@@ -62,7 +62,7 @@ impl GOBType {
             GOBType::Linear => {
                 panic!("Linear modifierss are handled elsewhere");
             }
-            GOBType::FermiZS => {
+            GOBType::FermiZS | GOBType::BlackwellZ24 => {
                 panic!("Modifiers are not supported for Z/S images");
             }
             GOBType::FermiColor => GOBKindVersion::Fermi,

src/nouveau/nil/tiling.rs

@@ -9,6 +9,7 @@ use crate::image::{
 };
 use crate::ILog2Ceil;
 
+use nil_rs_bindings::*;
 use nvidia_headers::classes::{cl9097, clc597, clcd97};
 
 #[repr(u8)]
@@ -92,6 +93,9 @@ pub enum GOBType {
     /// `CopyGOBBlackwell2D2BPP` implements CPU copies for 16-bit Blackwell
     /// color 2D GOBs.
     Blackwell16Bit,
+
+    /// The Blackwell+ GOB format for 24-bit depth images
+    BlackwellZ24,
 }
 
 impl GOBType {
@@ -100,14 +104,18 @@ impl GOBType {
         format: Format,
     ) -> GOBType {
         if dev.cls_eng3d >= clcd97::BLACKWELL_A {
-            if format.is_depth_or_stencil() {
-                GOBType::FermiZS
-            } else {
-                match format.el_size_B() {
+            match pipe_format::from(format) {
+                PIPE_FORMAT_Z24X8_UNORM
+                | PIPE_FORMAT_X8Z24_UNORM
+                | PIPE_FORMAT_Z24_UNORM_S8_UINT
+                | PIPE_FORMAT_S8_UINT_Z24_UNORM
+                | PIPE_FORMAT_X24S8_UINT
+                | PIPE_FORMAT_S8X24_UINT => GOBType::BlackwellZ24,
+                _ => match format.el_size_B() {
                     1 => GOBType::Blackwell8Bit,
                     2 => GOBType::Blackwell16Bit,
                     _ => GOBType::TuringColor2D,
-                }
+                },
             }
         } else if dev.cls_eng3d >= clc597::TURING_A {
             if format.is_depth_or_stencil() {
@@ -133,7 +141,8 @@ impl GOBType {
             | GOBType::FermiColor
             | GOBType::TuringColor2D
             | GOBType::Blackwell8Bit
-            | GOBType::Blackwell16Bit => Extent4D::new(64, 8, 1, 1),
+            | GOBType::Blackwell16Bit
+            | GOBType::BlackwellZ24 => Extent4D::new(64, 8, 1, 1),
         }
     }