Merge pull request #4242 from ReinUsesLisp/maxwell-dma

maxwell_dma: Match official doc and support pitch->voxel copies

src/video_core/engines/maxwell_dma.cpp

@@ -14,50 +14,45 @@
 
 namespace Tegra::Engines {
 
+using namespace Texture;
+
 MaxwellDMA::MaxwellDMA(Core::System& system, MemoryManager& memory_manager)
     : system{system}, memory_manager{memory_manager} {}
 
 void MaxwellDMA::CallMethod(u32 method, u32 method_argument, bool is_last_call) {
-    ASSERT_MSG(method < Regs::NUM_REGS,
-               "Invalid MaxwellDMA register, increase the size of the Regs structure");
+    ASSERT_MSG(method < NUM_REGS, "Invalid MaxwellDMA register");
 
     regs.reg_array[method] = method_argument;
 
-#define MAXWELLDMA_REG_INDEX(field_name)                                                           \
-    (offsetof(Tegra::Engines::MaxwellDMA::Regs, field_name) / sizeof(u32))
-
-    switch (method) {
-    case MAXWELLDMA_REG_INDEX(exec): {
-        HandleCopy();
-        break;
-    }
+    if (method == offsetof(Regs, launch_dma) / sizeof(u32)) {
+        Launch();
     }
-
-#undef MAXWELLDMA_REG_INDEX
 }
 
 void MaxwellDMA::CallMultiMethod(u32 method, const u32* base_start, u32 amount,
                                  u32 methods_pending) {
-    for (std::size_t i = 0; i < amount; i++) {
+    for (size_t i = 0; i < amount; ++i) {
         CallMethod(method, base_start[i], methods_pending - static_cast<u32>(i) <= 1);
     }
 }
 
-void MaxwellDMA::HandleCopy() {
-    LOG_TRACE(HW_GPU, "Requested a DMA copy");
-
-    const GPUVAddr source = regs.src_address.Address();
-    const GPUVAddr dest = regs.dst_address.Address();
+void MaxwellDMA::Launch() {
+    LOG_TRACE(Render_OpenGL, "DMA copy 0x{:x} -> 0x{:x}", static_cast<GPUVAddr>(regs.offset_in),
+              static_cast<GPUVAddr>(regs.offset_out));
 
     // TODO(Subv): Perform more research and implement all features of this engine.
-    ASSERT(regs.exec.enable_swizzle == 0);
-    ASSERT(regs.exec.query_mode == Regs::QueryMode::None);
-    ASSERT(regs.exec.query_intr == Regs::QueryIntr::None);
-    ASSERT(regs.exec.copy_mode == Regs::CopyMode::Unk2);
-    ASSERT(regs.dst_params.pos_x == 0);
-    ASSERT(regs.dst_params.pos_y == 0);
-
-    if (!regs.exec.is_dst_linear && !regs.exec.is_src_linear) {
+    const LaunchDMA& launch = regs.launch_dma;
+    ASSERT(launch.remap_enable == 0);
+    ASSERT(launch.semaphore_type == LaunchDMA::SemaphoreType::NONE);
+    ASSERT(launch.interrupt_type == LaunchDMA::InterruptType::NONE);
+    ASSERT(launch.data_transfer_type == LaunchDMA::DataTransferType::NON_PIPELINED);
+    ASSERT(regs.dst_params.origin.x == 0);
+    ASSERT(regs.dst_params.origin.y == 0);
+
+    const bool is_src_pitch = launch.src_memory_layout == LaunchDMA::MemoryLayout::PITCH;
+    const bool is_dst_pitch = launch.dst_memory_layout == LaunchDMA::MemoryLayout::PITCH;
+
+    if (!is_src_pitch && !is_dst_pitch) {
         // If both the source and the destination are in block layout, assert.
         UNREACHABLE_MSG("Tiled->Tiled DMA transfers are not yet implemented");
         return;
@@ -66,144 +61,161 @@ void MaxwellDMA::HandleCopy() {
     // All copies here update the main memory, so mark all rasterizer states as invalid.
     system.GPU().Maxwell3D().OnMemoryWrite();
 
-    if (regs.exec.is_dst_linear && regs.exec.is_src_linear) {
-        // When the enable_2d bit is disabled, the copy is performed as if we were copying a 1D
-        // buffer of length `x_count`, otherwise we copy a 2D image of dimensions (x_count,
-        // y_count).
-        if (!regs.exec.enable_2d) {
-            memory_manager.CopyBlock(dest, source, regs.x_count);
-            return;
-        }
+    if (is_src_pitch && is_dst_pitch) {
+        CopyPitchToPitch();
+    } else {
+        ASSERT(launch.multi_line_enable == 1);
 
-        // If both the source and the destination are in linear layout, perform a line-by-line
-        // copy. We're going to take a subrect of size (x_count, y_count) from the source
-        // rectangle. There is no need to manually flush/invalidate the regions because
-        // CopyBlock does that for us.
-        for (u32 line = 0; line < regs.y_count; ++line) {
-            const GPUVAddr source_line = source + line * regs.src_pitch;
-            const GPUVAddr dest_line = dest + line * regs.dst_pitch;
-            memory_manager.CopyBlock(dest_line, source_line, regs.x_count);
+        if (!is_src_pitch && is_dst_pitch) {
+            CopyBlockLinearToPitch();
+        } else {
+            CopyPitchToBlockLinear();
         }
-        return;
     }
+}
 
-    ASSERT(regs.exec.enable_2d == 1);
-
-    if (regs.exec.is_dst_linear && !regs.exec.is_src_linear) {
-
-        ASSERT(regs.src_params.BlockDepth() == 0);
-        // Optimized path for micro copies.
-        if (regs.dst_pitch * regs.y_count < Texture::GetGOBSize() && regs.dst_pitch <= 64) {
-            const u32 bytes_per_pixel = regs.dst_pitch / regs.x_count;
-            const std::size_t src_size = Texture::GetGOBSize();
-            const std::size_t dst_size = regs.dst_pitch * regs.y_count;
-            u32 pos_x = regs.src_params.pos_x;
-            u32 pos_y = regs.src_params.pos_y;
-            const u64 offset =
-                Texture::GetGOBOffset(regs.src_params.size_x, regs.src_params.size_y, pos_x, pos_y,
-                                      regs.src_params.BlockDepth(), bytes_per_pixel);
-            const u32 x_in_gob = 64 / bytes_per_pixel;
-            pos_x = pos_x % x_in_gob;
-            pos_y = pos_y % 8;
-
-            if (read_buffer.size() < src_size) {
-                read_buffer.resize(src_size);
-            }
-
-            if (write_buffer.size() < dst_size) {
-                write_buffer.resize(dst_size);
-            }
-
-            if (Settings::IsGPULevelExtreme()) {
-                memory_manager.ReadBlock(source + offset, read_buffer.data(), src_size);
-                memory_manager.ReadBlock(dest, write_buffer.data(), dst_size);
-            } else {
-                memory_manager.ReadBlockUnsafe(source + offset, read_buffer.data(), src_size);
-                memory_manager.ReadBlockUnsafe(dest, write_buffer.data(), dst_size);
-            }
-
-            Texture::UnswizzleSubrect(regs.x_count, regs.y_count, regs.dst_pitch,
-                                      regs.src_params.size_x, bytes_per_pixel, read_buffer.data(),
-                                      write_buffer.data(), regs.src_params.BlockHeight(), pos_x,
-                                      pos_y);
-
-            memory_manager.WriteBlock(dest, write_buffer.data(), dst_size);
-
-            return;
-        }
-        // If the input is tiled and the output is linear, deswizzle the input and copy it over.
-        const u32 bytes_per_pixel = regs.dst_pitch / regs.x_count;
-        const std::size_t src_size = Texture::CalculateSize(
-            true, bytes_per_pixel, regs.src_params.size_x, regs.src_params.size_y,
-            regs.src_params.size_z, regs.src_params.BlockHeight(), regs.src_params.BlockDepth());
-
-        const std::size_t src_layer_size = Texture::CalculateSize(
-            true, bytes_per_pixel, regs.src_params.size_x, regs.src_params.size_y, 1,
-            regs.src_params.BlockHeight(), regs.src_params.BlockDepth());
-
-        const std::size_t dst_size = regs.dst_pitch * regs.y_count;
+void MaxwellDMA::CopyPitchToPitch() {
+    // When `multi_line_enable` bit is disabled the copy is performed as if we were copying a 1D
+    // buffer of length `line_length_in`.
+    // Otherwise we copy a 2D image of dimensions (line_length_in, line_count).
+    if (!regs.launch_dma.multi_line_enable) {
+        memory_manager.CopyBlock(regs.offset_out, regs.offset_in, regs.line_length_in);
+        return;
+    }
 
-        if (read_buffer.size() < src_size) {
-            read_buffer.resize(src_size);
-        }
+    // Perform a line-by-line copy.
+    // We're going to take a subrect of size (line_length_in, line_count) from the source rectangle.
+    // There is no need to manually flush/invalidate the regions because CopyBlock does that for us.
+    for (u32 line = 0; line < regs.line_count; ++line) {
+        const GPUVAddr source_line = regs.offset_in + static_cast<size_t>(line) * regs.pitch_in;
+        const GPUVAddr dest_line = regs.offset_out + static_cast<size_t>(line) * regs.pitch_out;
+        memory_manager.CopyBlock(dest_line, source_line, regs.line_length_in);
+    }
+}
 
-        if (write_buffer.size() < dst_size) {
-            write_buffer.resize(dst_size);
-        }
+void MaxwellDMA::CopyBlockLinearToPitch() {
+    ASSERT(regs.src_params.block_size.depth == 0);
 
-        if (Settings::IsGPULevelExtreme()) {
-            memory_manager.ReadBlock(source, read_buffer.data(), src_size);
-            memory_manager.ReadBlock(dest, write_buffer.data(), dst_size);
-        } else {
-            memory_manager.ReadBlockUnsafe(source, read_buffer.data(), src_size);
-            memory_manager.ReadBlockUnsafe(dest, write_buffer.data(), dst_size);
-        }
+    // Optimized path for micro copies.
+    const size_t dst_size = static_cast<size_t>(regs.pitch_out) * regs.line_count;
+    if (dst_size < GOB_SIZE && regs.pitch_out <= GOB_SIZE_X) {
+        FastCopyBlockLinearToPitch();
+        return;
+    }
 
-        Texture::UnswizzleSubrect(
-            regs.x_count, regs.y_count, regs.dst_pitch, regs.src_params.size_x, bytes_per_pixel,
-            read_buffer.data() + src_layer_size * regs.src_params.pos_z, write_buffer.data(),
-            regs.src_params.BlockHeight(), regs.src_params.pos_x, regs.src_params.pos_y);
+    // Deswizzle the input and copy it over.
+    const u32 bytes_per_pixel = regs.pitch_out / regs.line_length_in;
+    const Parameters& src_params = regs.src_params;
+    const u32 width = src_params.width;
+    const u32 height = src_params.height;
+    const u32 depth = src_params.depth;
+    const u32 block_height = src_params.block_size.height;
+    const u32 block_depth = src_params.block_size.depth;
+    const size_t src_size =
+        CalculateSize(true, bytes_per_pixel, width, height, depth, block_height, block_depth);
+    const size_t src_layer_size =
+        CalculateSize(true, bytes_per_pixel, width, height, 1, block_height, block_depth);
+
+    if (read_buffer.size() < src_size) {
+        read_buffer.resize(src_size);
+    }
+    if (write_buffer.size() < dst_size) {
+        write_buffer.resize(dst_size);
+    }
 
-        memory_manager.WriteBlock(dest, write_buffer.data(), dst_size);
+    if (Settings::IsGPULevelExtreme()) {
+        memory_manager.ReadBlock(regs.offset_in, read_buffer.data(), src_size);
+        memory_manager.ReadBlock(regs.offset_out, write_buffer.data(), dst_size);
     } else {
-        ASSERT(regs.dst_params.BlockDepth() == 0);
+        memory_manager.ReadBlockUnsafe(regs.offset_in, read_buffer.data(), src_size);
+        memory_manager.ReadBlockUnsafe(regs.offset_out, write_buffer.data(), dst_size);
+    }
 
-        const u32 bytes_per_pixel = regs.src_pitch / regs.x_count;
+    UnswizzleSubrect(regs.line_length_in, regs.line_count, regs.pitch_out, width, bytes_per_pixel,
+                     read_buffer.data() + src_layer_size * src_params.layer, write_buffer.data(),
+                     block_height, src_params.origin.x, src_params.origin.y);
 
-        const std::size_t dst_size = Texture::CalculateSize(
-            true, bytes_per_pixel, regs.dst_params.size_x, regs.dst_params.size_y,
-            regs.dst_params.size_z, regs.dst_params.BlockHeight(), regs.dst_params.BlockDepth());
+    memory_manager.WriteBlock(regs.offset_out, write_buffer.data(), dst_size);
+}
 
-        const std::size_t dst_layer_size = Texture::CalculateSize(
-            true, bytes_per_pixel, regs.dst_params.size_x, regs.dst_params.size_y, 1,
-            regs.dst_params.BlockHeight(), regs.dst_params.BlockDepth());
+void MaxwellDMA::CopyPitchToBlockLinear() {
+    const auto& dst_params = regs.dst_params;
+    const u32 bytes_per_pixel = regs.pitch_in / regs.line_length_in;
+    const u32 width = dst_params.width;
+    const u32 height = dst_params.height;
+    const u32 depth = dst_params.depth;
+    const u32 block_height = dst_params.block_size.height;
+    const u32 block_depth = dst_params.block_size.depth;
+    const size_t dst_size =
+        CalculateSize(true, bytes_per_pixel, width, height, depth, block_height, block_depth);
+    const size_t dst_layer_size =
+        CalculateSize(true, bytes_per_pixel, width, height, 1, block_height, block_depth);
+
+    const size_t src_size = static_cast<size_t>(regs.pitch_in) * regs.line_count;
+
+    if (read_buffer.size() < src_size) {
+        read_buffer.resize(src_size);
+    }
+    if (write_buffer.size() < dst_size) {
+        write_buffer.resize(dst_size);
+    }
 
-        const std::size_t src_size = regs.src_pitch * regs.y_count;
+    if (Settings::IsGPULevelExtreme()) {
+        memory_manager.ReadBlock(regs.offset_in, read_buffer.data(), src_size);
+        memory_manager.ReadBlock(regs.offset_out, write_buffer.data(), dst_size);
+    } else {
+        memory_manager.ReadBlockUnsafe(regs.offset_in, read_buffer.data(), src_size);
+        memory_manager.ReadBlockUnsafe(regs.offset_out, write_buffer.data(), dst_size);
+    }
 
-        if (read_buffer.size() < src_size) {
-            read_buffer.resize(src_size);
-        }
+    // If the input is linear and the output is tiled, swizzle the input and copy it over.
+    if (regs.dst_params.block_size.depth > 0) {
+        ASSERT(dst_params.layer == 0);
+        SwizzleSliceToVoxel(regs.line_length_in, regs.line_count, regs.pitch_in, width, height,
+                            bytes_per_pixel, block_height, block_depth, dst_params.origin.x,
+                            dst_params.origin.y, write_buffer.data(), read_buffer.data());
+    } else {
+        SwizzleSubrect(regs.line_length_in, regs.line_count, regs.pitch_in, width, bytes_per_pixel,
+                       write_buffer.data() + dst_layer_size * dst_params.layer, read_buffer.data(),
+                       block_height, dst_params.origin.x, dst_params.origin.y);
+    }
 
-        if (write_buffer.size() < dst_size) {
-            write_buffer.resize(dst_size);
-        }
+    memory_manager.WriteBlock(regs.offset_out, write_buffer.data(), dst_size);
+}
 
-        if (Settings::IsGPULevelExtreme()) {
-            memory_manager.ReadBlock(source, read_buffer.data(), src_size);
-            memory_manager.ReadBlock(dest, write_buffer.data(), dst_size);
-        } else {
-            memory_manager.ReadBlockUnsafe(source, read_buffer.data(), src_size);
-            memory_manager.ReadBlockUnsafe(dest, write_buffer.data(), dst_size);
-        }
+void MaxwellDMA::FastCopyBlockLinearToPitch() {
+    const u32 bytes_per_pixel = regs.pitch_out / regs.line_length_in;
+    const size_t src_size = GOB_SIZE;
+    const size_t dst_size = static_cast<size_t>(regs.pitch_out) * regs.line_count;
+    u32 pos_x = regs.src_params.origin.x;
+    u32 pos_y = regs.src_params.origin.y;
+    const u64 offset = GetGOBOffset(regs.src_params.width, regs.src_params.height, pos_x, pos_y,
+                                    regs.src_params.block_size.height, bytes_per_pixel);
+    const u32 x_in_gob = 64 / bytes_per_pixel;
+    pos_x = pos_x % x_in_gob;
+    pos_y = pos_y % 8;
+
+    if (read_buffer.size() < src_size) {
+        read_buffer.resize(src_size);
+    }
 
-        // If the input is linear and the output is tiled, swizzle the input and copy it over.
-        Texture::SwizzleSubrect(
-            regs.x_count, regs.y_count, regs.src_pitch, regs.dst_params.size_x, bytes_per_pixel,
-            write_buffer.data() + dst_layer_size * regs.dst_params.pos_z, read_buffer.data(),
-            regs.dst_params.BlockHeight(), regs.dst_params.pos_x, regs.dst_params.pos_y);
+    if (write_buffer.size() < dst_size) {
+        write_buffer.resize(dst_size);
+    }
 
-        memory_manager.WriteBlock(dest, write_buffer.data(), dst_size);
+    if (Settings::IsGPULevelExtreme()) {
+        memory_manager.ReadBlock(regs.offset_in + offset, read_buffer.data(), src_size);
+        memory_manager.ReadBlock(regs.offset_out, write_buffer.data(), dst_size);
+    } else {
+        memory_manager.ReadBlockUnsafe(regs.offset_in + offset, read_buffer.data(), src_size);
+        memory_manager.ReadBlockUnsafe(regs.offset_out, write_buffer.data(), dst_size);
     }
+
+    UnswizzleSubrect(regs.line_length_in, regs.line_count, regs.pitch_out, regs.src_params.width,
+                     bytes_per_pixel, read_buffer.data(), write_buffer.data(),
+                     regs.src_params.block_size.height, pos_x, pos_y);
+
+    memory_manager.WriteBlock(regs.offset_out, write_buffer.data(), dst_size);
 }
 
 } // namespace Tegra::Engines

src/video_core/engines/maxwell_dma.h

@@ -24,160 +24,190 @@ class MemoryManager;
 namespace Tegra::Engines {
 
 /**
- * This Engine is known as GK104_Copy. Documentation can be found in:
+ * This engine is known as gk104_copy. Documentation can be found in:
+ * https://github.com/NVIDIA/open-gpu-doc/blob/master/classes/dma-copy/clb0b5.h
  * https://github.com/envytools/envytools/blob/master/rnndb/fifo/gk104_copy.xml
  */
 
 class MaxwellDMA final : public EngineInterface {
 public:
-    explicit MaxwellDMA(Core::System& system, MemoryManager& memory_manager);
-    ~MaxwellDMA() = default;
-
-    /// Write the value to the register identified by method.
-    void CallMethod(u32 method, u32 method_argument, bool is_last_call) override;
-
-    /// Write multiple values to the register identified by method.
-    void CallMultiMethod(u32 method, const u32* base_start, u32 amount,
-                         u32 methods_pending) override;
+    struct PackedGPUVAddr {
+        u32 upper;
+        u32 lower;
+
+        constexpr operator GPUVAddr() const noexcept {
+            return (static_cast<GPUVAddr>(upper & 0xff) << 32) | lower;
+        }
+    };
+
+    union BlockSize {
+        BitField<0, 4, u32> width;
+        BitField<4, 4, u32> height;
+        BitField<8, 4, u32> depth;
+        BitField<12, 4, u32> gob_height;
+    };
+    static_assert(sizeof(BlockSize) == 4);
+
+    union Origin {
+        BitField<0, 16, u32> x;
+        BitField<16, 16, u32> y;
+    };
+    static_assert(sizeof(Origin) == 4);
+
+    struct Parameters {
+        BlockSize block_size;
+        u32 width;
+        u32 height;
+        u32 depth;
+        u32 layer;
+        Origin origin;
+    };
+    static_assert(sizeof(Parameters) == 24);
+
+    struct Semaphore {
+        PackedGPUVAddr address;
+        u32 payload;
+    };
+    static_assert(sizeof(Semaphore) == 12);
+
+    struct RenderEnable {
+        enum class Mode : u32 {
+            FALSE = 0,
+            TRUE = 1,
+            CONDITIONAL = 2,
+            RENDER_IF_EQUAL = 3,
+            RENDER_IF_NOT_EQUAL = 4,
+        };
 
-    struct Regs {
-        static constexpr std::size_t NUM_REGS = 0x1D6;
+        PackedGPUVAddr address;
+        BitField<0, 3, Mode> mode;
+    };
+    static_assert(sizeof(RenderEnable) == 12);
+
+    enum class PhysModeTarget : u32 {
+        LOCAL_FB = 0,
+        COHERENT_SYSMEM = 1,
+        NONCOHERENT_SYSMEM = 2,
+    };
+    using PhysMode = BitField<0, 2, PhysModeTarget>;
+
+    union LaunchDMA {
+        enum class DataTransferType : u32 {
+            NONE = 0,
+            PIPELINED = 1,
+            NON_PIPELINED = 2,
+        };
 
-        struct Parameters {
-            union {
-                BitField<0, 4, u32> block_depth;
-                BitField<4, 4, u32> block_height;
-                BitField<8, 4, u32> block_width;
-            };
-            u32 size_x;
-            u32 size_y;
-            u32 size_z;
-            u32 pos_z;
-            union {
-                BitField<0, 16, u32> pos_x;
-                BitField<16, 16, u32> pos_y;
-            };
+        enum class SemaphoreType : u32 {
+            NONE = 0,
+            RELEASE_ONE_WORD_SEMAPHORE = 1,
+            RELEASE_FOUR_WORD_SEMAPHORE = 2,
+        };
 
-            u32 BlockHeight() const {
-                return block_height.Value();
-            }
+        enum class InterruptType : u32 {
+            NONE = 0,
+            BLOCKING = 1,
+            NON_BLOCKING = 2,
+        };
 
-            u32 BlockDepth() const {
-                return block_depth.Value();
-            }
+        enum class MemoryLayout : u32 {
+            BLOCKLINEAR = 0,
+            PITCH = 1,
         };
 
-        static_assert(sizeof(Parameters) == 24, "Parameters has wrong size");
+        enum class Type : u32 {
+            VIRTUAL = 0,
+            PHYSICAL = 1,
+        };
 
-        enum class ComponentMode : u32 {
-            Src0 = 0,
-            Src1 = 1,
-            Src2 = 2,
-            Src3 = 3,
-            Const0 = 4,
-            Const1 = 5,
-            Zero = 6,
+        enum class SemaphoreReduction : u32 {
+            IMIN = 0,
+            IMAX = 1,
+            IXOR = 2,
+            IAND = 3,
+            IOR = 4,
+            IADD = 5,
+            INC = 6,
+            DEC = 7,
+            FADD = 0xA,
         };
 
-        enum class CopyMode : u32 {
-            None = 0,
-            Unk1 = 1,
-            Unk2 = 2,
+        enum class SemaphoreReductionSign : u32 {
+            SIGNED = 0,
+            UNSIGNED = 1,
         };
 
-        enum class QueryMode : u32 {
-            None = 0,
-            Short = 1,
-            Long = 2,
+        enum class BypassL2 : u32 {
+            USE_PTE_SETTING = 0,
+            FORCE_VOLATILE = 1,
         };
 
-        enum class QueryIntr : u32 {
-            None = 0,
-            Block = 1,
-            NonBlock = 2,
+        BitField<0, 2, DataTransferType> data_transfer_type;
+        BitField<2, 1, u32> flush_enable;
+        BitField<3, 2, SemaphoreType> semaphore_type;
+        BitField<5, 2, InterruptType> interrupt_type;
+        BitField<7, 1, MemoryLayout> src_memory_layout;
+        BitField<8, 1, MemoryLayout> dst_memory_layout;
+        BitField<9, 1, u32> multi_line_enable;
+        BitField<10, 1, u32> remap_enable;
+        BitField<11, 1, u32> rmwdisable;
+        BitField<12, 1, Type> src_type;
+        BitField<13, 1, Type> dst_type;
+        BitField<14, 4, SemaphoreReduction> semaphore_reduction;
+        BitField<18, 1, SemaphoreReductionSign> semaphore_reduction_sign;
+        BitField<19, 1, u32> reduction_enable;
+        BitField<20, 1, BypassL2> bypass_l2;
+    };
+    static_assert(sizeof(LaunchDMA) == 4);
+
+    struct RemapConst {
+        enum Swizzle : u32 {
+            SRC_X = 0,
+            SRC_Y = 1,
+            SRC_Z = 2,
+            SRC_W = 3,
+            CONST_A = 4,
+            CONST_B = 5,
+            NO_WRITE = 6,
         };
 
-        union {
-            struct {
-                INSERT_UNION_PADDING_WORDS(0xC0);
-
-                struct {
-                    union {
-                        BitField<0, 2, CopyMode> copy_mode;
-                        BitField<2, 1, u32> flush;
-
-                        BitField<3, 2, QueryMode> query_mode;
-                        BitField<5, 2, QueryIntr> query_intr;
-
-                        BitField<7, 1, u32> is_src_linear;
-                        BitField<8, 1, u32> is_dst_linear;
-
-                        BitField<9, 1, u32> enable_2d;
-                        BitField<10, 1, u32> enable_swizzle;
-                    };
-                } exec;
-
-                INSERT_UNION_PADDING_WORDS(0x3F);
-
-                struct {
-                    u32 address_high;
-                    u32 address_low;
-
-                    GPUVAddr Address() const {
-                        return static_cast<GPUVAddr>((static_cast<GPUVAddr>(address_high) << 32) |
-                                                     address_low);
-                    }
-                } src_address;
-
-                struct {
-                    u32 address_high;
-                    u32 address_low;
-
-                    GPUVAddr Address() const {
-                        return static_cast<GPUVAddr>((static_cast<GPUVAddr>(address_high) << 32) |
-                                                     address_low);
-                    }
-                } dst_address;
-
-                u32 src_pitch;
-                u32 dst_pitch;
-                u32 x_count;
-                u32 y_count;
-
-                INSERT_UNION_PADDING_WORDS(0xB8);
-
-                u32 const0;
-                u32 const1;
-                union {
-                    BitField<0, 4, ComponentMode> component0;
-                    BitField<4, 4, ComponentMode> component1;
-                    BitField<8, 4, ComponentMode> component2;
-                    BitField<12, 4, ComponentMode> component3;
-                    BitField<16, 2, u32> component_size;
-                    BitField<20, 3, u32> src_num_components;
-                    BitField<24, 3, u32> dst_num_components;
-
-                    u32 SrcBytePerPixel() const {
-                        return src_num_components.Value() * component_size.Value();
-                    }
-                    u32 DstBytePerPixel() const {
-                        return dst_num_components.Value() * component_size.Value();
-                    }
-                } swizzle_config;
+        PackedGPUVAddr address;
 
-                Parameters dst_params;
+        union {
+            BitField<0, 3, Swizzle> dst_x;
+            BitField<4, 3, Swizzle> dst_y;
+            BitField<8, 3, Swizzle> dst_z;
+            BitField<12, 3, Swizzle> dst_w;
+            BitField<16, 2, u32> component_size_minus_one;
+            BitField<20, 2, u32> num_src_components_minus_one;
+            BitField<24, 2, u32> num_dst_components_minus_one;
+        };
+    };
+    static_assert(sizeof(RemapConst) == 12);
 
-                INSERT_UNION_PADDING_WORDS(1);
+    explicit MaxwellDMA(Core::System& system, MemoryManager& memory_manager);
+    ~MaxwellDMA() = default;
 
-                Parameters src_params;
+    /// Write the value to the register identified by method.
+    void CallMethod(u32 method, u32 method_argument, bool is_last_call) override;
 
-                INSERT_UNION_PADDING_WORDS(0x13);
-            };
-            std::array<u32, NUM_REGS> reg_array;
-        };
-    } regs{};
+    /// Write multiple values to the register identified by method.
+    void CallMultiMethod(u32 method, const u32* base_start, u32 amount,
+                         u32 methods_pending) override;
 
 private:
+    /// Performs the copy from the source buffer to the destination buffer as configured in the
+    /// registers.
+    void Launch();
+
+    void CopyPitchToPitch();
+
+    void CopyBlockLinearToPitch();
+
+    void CopyPitchToBlockLinear();
+
+    void FastCopyBlockLinearToPitch();
+
     Core::System& system;
 
     MemoryManager& memory_manager;
@@ -185,28 +215,58 @@ private:
     std::vector<u8> read_buffer;
     std::vector<u8> write_buffer;
 
-    /// Performs the copy from the source buffer to the destination buffer as configured in the
-    /// registers.
-    void HandleCopy();
-};
+    static constexpr std::size_t NUM_REGS = 0x800;
+    struct Regs {
+        union {
+            struct {
+                u32 reserved[0x40];
+                u32 nop;
+                u32 reserved01[0xf];
+                u32 pm_trigger;
+                u32 reserved02[0x3f];
+                Semaphore semaphore;
+                u32 reserved03[0x2];
+                RenderEnable render_enable;
+                PhysMode src_phys_mode;
+                PhysMode dst_phys_mode;
+                u32 reserved04[0x26];
+                LaunchDMA launch_dma;
+                u32 reserved05[0x3f];
+                PackedGPUVAddr offset_in;
+                PackedGPUVAddr offset_out;
+                u32 pitch_in;
+                u32 pitch_out;
+                u32 line_length_in;
+                u32 line_count;
+                u32 reserved06[0xb8];
+                RemapConst remap_const;
+                Parameters dst_params;
+                u32 reserved07[0x1];
+                Parameters src_params;
+                u32 reserved08[0x275];
+                u32 pm_trigger_end;
+                u32 reserved09[0x3ba];
+            };
+            std::array<u32, NUM_REGS> reg_array;
+        };
+    } regs{};
 
 #define ASSERT_REG_POSITION(field_name, position)                                                  \
     static_assert(offsetof(MaxwellDMA::Regs, field_name) == position * 4,                          \
                   "Field " #field_name " has invalid position")
 
-ASSERT_REG_POSITION(exec, 0xC0);
-ASSERT_REG_POSITION(src_address, 0x100);
-ASSERT_REG_POSITION(dst_address, 0x102);
-ASSERT_REG_POSITION(src_pitch, 0x104);
-ASSERT_REG_POSITION(dst_pitch, 0x105);
-ASSERT_REG_POSITION(x_count, 0x106);
-ASSERT_REG_POSITION(y_count, 0x107);
-ASSERT_REG_POSITION(const0, 0x1C0);
-ASSERT_REG_POSITION(const1, 0x1C1);
-ASSERT_REG_POSITION(swizzle_config, 0x1C2);
-ASSERT_REG_POSITION(dst_params, 0x1C3);
-ASSERT_REG_POSITION(src_params, 0x1CA);
+    ASSERT_REG_POSITION(launch_dma, 0xC0);
+    ASSERT_REG_POSITION(offset_in, 0x100);
+    ASSERT_REG_POSITION(offset_out, 0x102);
+    ASSERT_REG_POSITION(pitch_in, 0x104);
+    ASSERT_REG_POSITION(pitch_out, 0x105);
+    ASSERT_REG_POSITION(line_length_in, 0x106);
+    ASSERT_REG_POSITION(line_count, 0x107);
+    ASSERT_REG_POSITION(remap_const, 0x1C0);
+    ASSERT_REG_POSITION(dst_params, 0x1C3);
+    ASSERT_REG_POSITION(src_params, 0x1CA);
 
 #undef ASSERT_REG_POSITION
+};
 
 } // namespace Tegra::Engines

src/video_core/texture_cache/surface_params.cpp

@@ -343,8 +343,7 @@ std::size_t SurfaceParams::GetLayerSize(bool as_host_size, bool uncompressed) co
         size += GetInnerMipmapMemorySize(level, as_host_size, uncompressed);
     }
     if (is_tiled && is_layered) {
-        return Common::AlignBits(size,
-                                 Tegra::Texture::GetGOBSizeShift() + block_height + block_depth);
+        return Common::AlignBits(size, Tegra::Texture::GOB_SIZE_SHIFT + block_height + block_depth);
     }
     return size;
 }
@@ -418,7 +417,7 @@ std::tuple<u32, u32, u32> SurfaceParams::GetBlockOffsetXYZ(u32 offset) const {
     const u32 block_size = GetBlockSize();
     const u32 block_index = offset / block_size;
     const u32 gob_offset = offset % block_size;
-    const u32 gob_index = gob_offset / static_cast<u32>(Tegra::Texture::GetGOBSize());
+    const u32 gob_index = gob_offset / static_cast<u32>(Tegra::Texture::GOB_SIZE);
     const u32 x_gob_pixels = 64U / GetBytesPerPixel();
     const u32 x_block_pixels = x_gob_pixels << block_width;
     const u32 y_block_pixels = 8U << block_height;

src/video_core/texture_cache/surface_params.h

@@ -204,7 +204,7 @@ public:
     static std::size_t AlignLayered(const std::size_t out_size, const u32 block_height,
                                     const u32 block_depth) {
         return Common::AlignBits(out_size,
-                                 Tegra::Texture::GetGOBSizeShift() + block_height + block_depth);
+                                 Tegra::Texture::GOB_SIZE_SHIFT + block_height + block_depth);
     }
 
     /// Converts a width from a type of surface into another. This helps represent the

src/video_core/textures/decoders.cpp

@@ -6,6 +6,7 @@
 #include <cstring>
 #include "common/alignment.h"
 #include "common/assert.h"
+#include "common/bit_util.h"
 #include "video_core/gpu.h"
 #include "video_core/textures/decoders.h"
 #include "video_core/textures/texture.h"
@@ -37,20 +38,10 @@ struct alignas(64) SwizzleTable {
     std::array<std::array<u16, M>, N> values{};
 };
 
-constexpr u32 gob_size_x_shift = 6;
-constexpr u32 gob_size_y_shift = 3;
-constexpr u32 gob_size_z_shift = 0;
-constexpr u32 gob_size_shift = gob_size_x_shift + gob_size_y_shift + gob_size_z_shift;
+constexpr u32 FAST_SWIZZLE_ALIGN = 16;
 
-constexpr u32 gob_size_x = 1U << gob_size_x_shift;
-constexpr u32 gob_size_y = 1U << gob_size_y_shift;
-constexpr u32 gob_size_z = 1U << gob_size_z_shift;
-constexpr u32 gob_size = 1U << gob_size_shift;
-
-constexpr u32 fast_swizzle_align = 16;
-
-constexpr auto legacy_swizzle_table = SwizzleTable<gob_size_y, gob_size_x, gob_size_z>();
-constexpr auto fast_swizzle_table = SwizzleTable<gob_size_y, 4, fast_swizzle_align>();
+constexpr auto LEGACY_SWIZZLE_TABLE = SwizzleTable<GOB_SIZE_X, GOB_SIZE_X, GOB_SIZE_Z>();
+constexpr auto FAST_SWIZZLE_TABLE = SwizzleTable<GOB_SIZE_Y, 4, FAST_SWIZZLE_ALIGN>();
 
 /**
  * This function manages ALL the GOBs(Group of Bytes) Inside a single block.
@@ -69,17 +60,17 @@ void PreciseProcessBlock(u8* const swizzled_data, u8* const unswizzled_data, con
         u32 y_address = z_address;
         u32 pixel_base = layer_z * z + y_start * stride_x;
         for (u32 y = y_start; y < y_end; y++) {
-            const auto& table = legacy_swizzle_table[y % gob_size_y];
+            const auto& table = LEGACY_SWIZZLE_TABLE[y % GOB_SIZE_Y];
             for (u32 x = x_start; x < x_end; x++) {
-                const u32 swizzle_offset{y_address + table[x * bytes_per_pixel % gob_size_x]};
+                const u32 swizzle_offset{y_address + table[x * bytes_per_pixel % GOB_SIZE_X]};
                 const u32 pixel_index{x * out_bytes_per_pixel + pixel_base};
                 data_ptrs[unswizzle] = swizzled_data + swizzle_offset;
                 data_ptrs[!unswizzle] = unswizzled_data + pixel_index;
                 std::memcpy(data_ptrs[0], data_ptrs[1], bytes_per_pixel);
             }
             pixel_base += stride_x;
-            if ((y + 1) % gob_size_y == 0)
-                y_address += gob_size;
+            if ((y + 1) % GOB_SIZE_Y == 0)
+                y_address += GOB_SIZE;
         }
         z_address += xy_block_size;
     }
@@ -104,18 +95,18 @@ void FastProcessBlock(u8* const swizzled_data, u8* const unswizzled_data, const
         u32 y_address = z_address;
         u32 pixel_base = layer_z * z + y_start * stride_x;
         for (u32 y = y_start; y < y_end; y++) {
-            const auto& table = fast_swizzle_table[y % gob_size_y];
-            for (u32 xb = x_startb; xb < x_endb; xb += fast_swizzle_align) {
-                const u32 swizzle_offset{y_address + table[(xb / fast_swizzle_align) % 4]};
+            const auto& table = FAST_SWIZZLE_TABLE[y % GOB_SIZE_Y];
+            for (u32 xb = x_startb; xb < x_endb; xb += FAST_SWIZZLE_ALIGN) {
+                const u32 swizzle_offset{y_address + table[(xb / FAST_SWIZZLE_ALIGN) % 4]};
                 const u32 out_x = xb * out_bytes_per_pixel / bytes_per_pixel;
                 const u32 pixel_index{out_x + pixel_base};
                 data_ptrs[unswizzle ? 1 : 0] = swizzled_data + swizzle_offset;
                 data_ptrs[unswizzle ? 0 : 1] = unswizzled_data + pixel_index;
-                std::memcpy(data_ptrs[0], data_ptrs[1], fast_swizzle_align);
+                std::memcpy(data_ptrs[0], data_ptrs[1], FAST_SWIZZLE_ALIGN);
             }
             pixel_base += stride_x;
-            if ((y + 1) % gob_size_y == 0)
-                y_address += gob_size;
+            if ((y + 1) % GOB_SIZE_Y == 0)
+                y_address += GOB_SIZE;
         }
         z_address += xy_block_size;
     }
@@ -138,9 +129,9 @@ void SwizzledData(u8* const swizzled_data, u8* const unswizzled_data, const bool
     auto div_ceil = [](const u32 x, const u32 y) { return ((x + y - 1) / y); };
     const u32 stride_x = width * out_bytes_per_pixel;
     const u32 layer_z = height * stride_x;
-    const u32 gob_elements_x = gob_size_x / bytes_per_pixel;
-    constexpr u32 gob_elements_y = gob_size_y;
-    constexpr u32 gob_elements_z = gob_size_z;
+    const u32 gob_elements_x = GOB_SIZE_X / bytes_per_pixel;
+    constexpr u32 gob_elements_y = GOB_SIZE_Y;
+    constexpr u32 gob_elements_z = GOB_SIZE_Z;
     const u32 block_x_elements = gob_elements_x;
     const u32 block_y_elements = gob_elements_y * block_height;
     const u32 block_z_elements = gob_elements_z * block_depth;
@@ -148,7 +139,7 @@ void SwizzledData(u8* const swizzled_data, u8* const unswizzled_data, const bool
     const u32 blocks_on_x = div_ceil(aligned_width, block_x_elements);
     const u32 blocks_on_y = div_ceil(height, block_y_elements);
     const u32 blocks_on_z = div_ceil(depth, block_z_elements);
-    const u32 xy_block_size = gob_size * block_height;
+    const u32 xy_block_size = GOB_SIZE * block_height;
     const u32 block_size = xy_block_size * block_depth;
     u32 tile_offset = 0;
     for (u32 zb = 0; zb < blocks_on_z; zb++) {
@@ -182,7 +173,7 @@ void CopySwizzledData(u32 width, u32 height, u32 depth, u32 bytes_per_pixel,
                       bool unswizzle, u32 block_height, u32 block_depth, u32 width_spacing) {
     const u32 block_height_size{1U << block_height};
     const u32 block_depth_size{1U << block_depth};
-    if (bytes_per_pixel % 3 != 0 && (width * bytes_per_pixel) % fast_swizzle_align == 0) {
+    if (bytes_per_pixel % 3 != 0 && (width * bytes_per_pixel) % FAST_SWIZZLE_ALIGN == 0) {
         SwizzledData<true>(swizzled_data, unswizzled_data, unswizzle, width, height, depth,
                            bytes_per_pixel, out_bytes_per_pixel, block_height_size,
                            block_depth_size, width_spacing);
@@ -259,25 +250,26 @@ std::vector<u8> UnswizzleTexture(u8* address, u32 tile_size_x, u32 tile_size_y,
 }
 
 void SwizzleSubrect(u32 subrect_width, u32 subrect_height, u32 source_pitch, u32 swizzled_width,
-                    u32 bytes_per_pixel, u8* swizzled_data, u8* unswizzled_data,
+                    u32 bytes_per_pixel, u8* swizzled_data, const u8* unswizzled_data,
                     u32 block_height_bit, u32 offset_x, u32 offset_y) {
     const u32 block_height = 1U << block_height_bit;
-    const u32 image_width_in_gobs{(swizzled_width * bytes_per_pixel + (gob_size_x - 1)) /
-                                  gob_size_x};
+    const u32 image_width_in_gobs =
+        (swizzled_width * bytes_per_pixel + (GOB_SIZE_X - 1)) / GOB_SIZE_X;
     for (u32 line = 0; line < subrect_height; ++line) {
         const u32 dst_y = line + offset_y;
         const u32 gob_address_y =
-            (dst_y / (gob_size_y * block_height)) * gob_size * block_height * image_width_in_gobs +
-            ((dst_y % (gob_size_y * block_height)) / gob_size_y) * gob_size;
-        const auto& table = legacy_swizzle_table[dst_y % gob_size_y];
+            (dst_y / (GOB_SIZE_Y * block_height)) * GOB_SIZE * block_height * image_width_in_gobs +
+            ((dst_y % (GOB_SIZE_Y * block_height)) / GOB_SIZE_Y) * GOB_SIZE;
+        const auto& table = LEGACY_SWIZZLE_TABLE[dst_y % GOB_SIZE_Y];
         for (u32 x = 0; x < subrect_width; ++x) {
             const u32 dst_x = x + offset_x;
             const u32 gob_address =
-                gob_address_y + (dst_x * bytes_per_pixel / gob_size_x) * gob_size * block_height;
-            const u32 swizzled_offset = gob_address + table[(dst_x * bytes_per_pixel) % gob_size_x];
-            u8* source_line = unswizzled_data + line * source_pitch + x * bytes_per_pixel;
-            u8* dest_addr = swizzled_data + swizzled_offset;
+                gob_address_y + (dst_x * bytes_per_pixel / GOB_SIZE_X) * GOB_SIZE * block_height;
+            const u32 swizzled_offset = gob_address + table[(dst_x * bytes_per_pixel) % GOB_SIZE_X];
+            const u32 unswizzled_offset = line * source_pitch + x * bytes_per_pixel;
 
+            const u8* const source_line = unswizzled_data + unswizzled_offset;
+            u8* const dest_addr = swizzled_data + swizzled_offset;
             std::memcpy(dest_addr, source_line, bytes_per_pixel);
         }
     }
@@ -289,14 +281,15 @@ void UnswizzleSubrect(u32 subrect_width, u32 subrect_height, u32 dest_pitch, u32
     const u32 block_height = 1U << block_height_bit;
     for (u32 line = 0; line < subrect_height; ++line) {
         const u32 y2 = line + offset_y;
-        const u32 gob_address_y = (y2 / (gob_size_y * block_height)) * gob_size * block_height +
-                                  ((y2 % (gob_size_y * block_height)) / gob_size_y) * gob_size;
-        const auto& table = legacy_swizzle_table[y2 % gob_size_y];
+        const u32 gob_address_y = (y2 / (GOB_SIZE_Y * block_height)) * GOB_SIZE * block_height +
+                                  ((y2 % (GOB_SIZE_Y * block_height)) / GOB_SIZE_Y) * GOB_SIZE;
+        const auto& table = LEGACY_SWIZZLE_TABLE[y2 % GOB_SIZE_Y];
         for (u32 x = 0; x < subrect_width; ++x) {
             const u32 x2 = (x + offset_x) * bytes_per_pixel;
-            const u32 gob_address = gob_address_y + (x2 / gob_size_x) * gob_size * block_height;
-            const u32 swizzled_offset = gob_address + table[x2 % gob_size_x];
-            u8* dest_line = unswizzled_data + line * dest_pitch + x * bytes_per_pixel;
+            const u32 gob_address = gob_address_y + (x2 / GOB_SIZE_X) * GOB_SIZE * block_height;
+            const u32 swizzled_offset = gob_address + table[x2 % GOB_SIZE_X];
+            const u32 unswizzled_offset = line * dest_pitch + x * bytes_per_pixel;
+            u8* dest_line = unswizzled_data + unswizzled_offset;
             u8* source_addr = swizzled_data + swizzled_offset;
 
             std::memcpy(dest_line, source_addr, bytes_per_pixel);
@@ -304,21 +297,48 @@ void UnswizzleSubrect(u32 subrect_width, u32 subrect_height, u32 dest_pitch, u32
     }
 }
 
+void SwizzleSliceToVoxel(u32 line_length_in, u32 line_count, u32 pitch, u32 width, u32 height,
+                         u32 bytes_per_pixel, u32 block_height, u32 block_depth, u32 origin_x,
+                         u32 origin_y, u8* output, const u8* input) {
+    UNIMPLEMENTED_IF(origin_x > 0);
+    UNIMPLEMENTED_IF(origin_y > 0);
+
+    const u32 stride = width * bytes_per_pixel;
+    const u32 gobs_in_x = (stride + GOB_SIZE_X - 1) / GOB_SIZE_X;
+    const u32 block_size = gobs_in_x << (GOB_SIZE_SHIFT + block_height + block_depth);
+
+    const u32 block_height_mask = (1U << block_height) - 1;
+    const u32 x_shift = Common::CountTrailingZeroes32(GOB_SIZE << (block_height + block_depth));
+
+    for (u32 line = 0; line < line_count; ++line) {
+        const auto& table = LEGACY_SWIZZLE_TABLE[line % GOB_SIZE_Y];
+        const u32 block_y = line / GOB_SIZE_Y;
+        const u32 dst_offset_y =
+            (block_y >> block_height) * block_size + (block_y & block_height_mask) * GOB_SIZE;
+        for (u32 x = 0; x < line_length_in; ++x) {
+            const u32 dst_offset =
+                ((x / GOB_SIZE_X) << x_shift) + dst_offset_y + table[x % GOB_SIZE_X];
+            const u32 src_offset = x * bytes_per_pixel + line * pitch;
+            std::memcpy(output + dst_offset, input + src_offset, bytes_per_pixel);
+        }
+    }
+}
+
 void SwizzleKepler(const u32 width, const u32 height, const u32 dst_x, const u32 dst_y,
                    const u32 block_height_bit, const std::size_t copy_size, const u8* source_data,
                    u8* swizzle_data) {
     const u32 block_height = 1U << block_height_bit;
-    const u32 image_width_in_gobs{(width + gob_size_x - 1) / gob_size_x};
+    const u32 image_width_in_gobs{(width + GOB_SIZE_X - 1) / GOB_SIZE_X};
     std::size_t count = 0;
     for (std::size_t y = dst_y; y < height && count < copy_size; ++y) {
         const std::size_t gob_address_y =
-            (y / (gob_size_y * block_height)) * gob_size * block_height * image_width_in_gobs +
-            ((y % (gob_size_y * block_height)) / gob_size_y) * gob_size;
-        const auto& table = legacy_swizzle_table[y % gob_size_y];
+            (y / (GOB_SIZE_Y * block_height)) * GOB_SIZE * block_height * image_width_in_gobs +
+            ((y % (GOB_SIZE_Y * block_height)) / GOB_SIZE_Y) * GOB_SIZE;
+        const auto& table = LEGACY_SWIZZLE_TABLE[y % GOB_SIZE_Y];
         for (std::size_t x = dst_x; x < width && count < copy_size; ++x) {
             const std::size_t gob_address =
-                gob_address_y + (x / gob_size_x) * gob_size * block_height;
-            const std::size_t swizzled_offset = gob_address + table[x % gob_size_x];
+                gob_address_y + (x / GOB_SIZE_X) * GOB_SIZE * block_height;
+            const std::size_t swizzled_offset = gob_address + table[x % GOB_SIZE_X];
             const u8* source_line = source_data + count;
             u8* dest_addr = swizzle_data + swizzled_offset;
             count++;
@@ -373,9 +393,9 @@ std::vector<u8> DecodeTexture(const std::vector<u8>& texture_data, TextureFormat
 std::size_t CalculateSize(bool tiled, u32 bytes_per_pixel, u32 width, u32 height, u32 depth,
                           u32 block_height, u32 block_depth) {
     if (tiled) {
-        const u32 aligned_width = Common::AlignBits(width * bytes_per_pixel, gob_size_x_shift);
-        const u32 aligned_height = Common::AlignBits(height, gob_size_y_shift + block_height);
-        const u32 aligned_depth = Common::AlignBits(depth, gob_size_z_shift + block_depth);
+        const u32 aligned_width = Common::AlignBits(width * bytes_per_pixel, GOB_SIZE_X_SHIFT);
+        const u32 aligned_height = Common::AlignBits(height, GOB_SIZE_Y_SHIFT + block_height);
+        const u32 aligned_depth = Common::AlignBits(depth, GOB_SIZE_Z_SHIFT + block_depth);
         return aligned_width * aligned_height * aligned_depth;
     } else {
         return width * height * depth * bytes_per_pixel;
@@ -386,14 +406,14 @@ u64 GetGOBOffset(u32 width, u32 height, u32 dst_x, u32 dst_y, u32 block_height,
                  u32 bytes_per_pixel) {
     auto div_ceil = [](const u32 x, const u32 y) { return ((x + y - 1) / y); };
     const u32 gobs_in_block = 1 << block_height;
-    const u32 y_blocks = gob_size_y << block_height;
-    const u32 x_per_gob = gob_size_x / bytes_per_pixel;
+    const u32 y_blocks = GOB_SIZE_Y << block_height;
+    const u32 x_per_gob = GOB_SIZE_X / bytes_per_pixel;
     const u32 x_blocks = div_ceil(width, x_per_gob);
-    const u32 block_size = gob_size * gobs_in_block;
+    const u32 block_size = GOB_SIZE * gobs_in_block;
     const u32 stride = block_size * x_blocks;
     const u32 base = (dst_y / y_blocks) * stride + (dst_x / x_per_gob) * block_size;
     const u32 relative_y = dst_y % y_blocks;
-    return base + (relative_y / gob_size_y) * gob_size;
+    return base + (relative_y / GOB_SIZE_Y) * GOB_SIZE;
 }
 
 } // namespace Tegra::Texture

src/video_core/textures/decoders.h

@@ -10,15 +10,15 @@
 
 namespace Tegra::Texture {
 
-// GOBSize constant. Calculated by 64 bytes in x multiplied by 8 y coords, represents
-// an small rect of (64/bytes_per_pixel)X8.
-inline std::size_t GetGOBSize() {
-    return 512;
-}
+constexpr u32 GOB_SIZE_X = 64;
+constexpr u32 GOB_SIZE_Y = 8;
+constexpr u32 GOB_SIZE_Z = 1;
+constexpr u32 GOB_SIZE = GOB_SIZE_X * GOB_SIZE_Y * GOB_SIZE_Z;
 
-inline std::size_t GetGOBSizeShift() {
-    return 9;
-}
+constexpr std::size_t GOB_SIZE_X_SHIFT = 6;
+constexpr std::size_t GOB_SIZE_Y_SHIFT = 3;
+constexpr std::size_t GOB_SIZE_Z_SHIFT = 0;
+constexpr std::size_t GOB_SIZE_SHIFT = GOB_SIZE_X_SHIFT + GOB_SIZE_Y_SHIFT + GOB_SIZE_Z_SHIFT;
 
 /// Unswizzles a swizzled texture without changing its format.
 void UnswizzleTexture(u8* unswizzled_data, u8* address, u32 tile_size_x, u32 tile_size_y,
@@ -48,14 +48,32 @@ std::size_t CalculateSize(bool tiled, u32 bytes_per_pixel, u32 width, u32 height
 
 /// Copies an untiled subrectangle into a tiled surface.
 void SwizzleSubrect(u32 subrect_width, u32 subrect_height, u32 source_pitch, u32 swizzled_width,
-                    u32 bytes_per_pixel, u8* swizzled_data, u8* unswizzled_data, u32 block_height,
-                    u32 offset_x, u32 offset_y);
+                    u32 bytes_per_pixel, u8* swizzled_data, const u8* unswizzled_data,
+                    u32 block_height_bit, u32 offset_x, u32 offset_y);
 
 /// Copies a tiled subrectangle into a linear surface.
 void UnswizzleSubrect(u32 subrect_width, u32 subrect_height, u32 dest_pitch, u32 swizzled_width,
                       u32 bytes_per_pixel, u8* swizzled_data, u8* unswizzled_data, u32 block_height,
                       u32 offset_x, u32 offset_y);
 
+/// @brief Swizzles a 2D array of pixels into a 3D texture
+/// @param line_length_in  Number of pixels per line
+/// @param line_count      Number of lines
+/// @param pitch           Number of bytes per line
+/// @param width           Width of the swizzled texture
+/// @param height          Height of the swizzled texture
+/// @param bytes_per_pixel Number of bytes used per pixel
+/// @param block_height    Block height shift
+/// @param block_depth     Block depth shift
+/// @param origin_x        Column offset in pixels of the swizzled texture
+/// @param origin_y        Row offset in pixels of the swizzled texture
+/// @param output          Pointer to the pixels of the swizzled texture
+/// @param input           Pointer to the 2D array of pixels used as input
+/// @pre input and output points to an array large enough to hold the number of bytes used
+void SwizzleSliceToVoxel(u32 line_length_in, u32 line_count, u32 pitch, u32 width, u32 height,
+                         u32 bytes_per_pixel, u32 block_height, u32 block_depth, u32 origin_x,
+                         u32 origin_y, u8* output, const u8* input);
+
 void SwizzleKepler(u32 width, u32 height, u32 dst_x, u32 dst_y, u32 block_height,
                    std::size_t copy_size, const u8* source_data, u8* swizzle_data);