diff options
Diffstat (limited to 'src/video_core/engines/maxwell_dma.cpp')
| -rw-r--r-- | src/video_core/engines/maxwell_dma.cpp | 294 |
1 files changed, 151 insertions, 143 deletions
diff --git a/src/video_core/engines/maxwell_dma.cpp b/src/video_core/engines/maxwell_dma.cpp index 01d7df405..28faad9ff 100644 --- a/src/video_core/engines/maxwell_dma.cpp +++ b/src/video_core/engines/maxwell_dma.cpp @@ -14,50 +14,44 @@ 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() { +void MaxwellDMA::Launch() { LOG_TRACE(HW_GPU, "Requested a DMA copy"); - const GPUVAddr source = regs.src_address.Address(); - const GPUVAddr dest = regs.dst_address.Address(); - // 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 +60,158 @@ 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 < GetGOBSize() && regs.pitch_out <= 64) { + 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, src_params.width, + bytes_per_pixel, read_buffer.data() + src_layer_size * src_params.layer, + write_buffer.data(), src_params.block_size.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; + ASSERT(dst_params.block_size.depth == 0); + + 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. + SwizzleSubrect(regs.line_length_in, regs.line_count, regs.pitch_in, dst_params.width, + bytes_per_pixel, write_buffer.data() + dst_layer_size * dst_params.layer, + read_buffer.data(), dst_params.block_size.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 = GetGOBSize(); + 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 |