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Introduce skeleton of the GPU Compute Engine.

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This commit is contained in:
Fernando Sahmkow
2019-04-22 19:05:43 -04:00
parent a91d3fc639
commit e4ff140b99
3 changed files with 202 additions and 8 deletions
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37
src/video_core/engines/kepler_compute.cpp
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@ -4,12 +4,21 @@
#include "common/assert.h"
#include "common/logging/log.h"
#include "core/core.h"
#include "video_core/engines/kepler_compute.h"
#include "video_core/engines/maxwell_3d.h"
#include "video_core/memory_manager.h"
#include "video_core/rasterizer_interface.h"
#include "video_core/renderer_base.h"
#include "video_core/textures/decoders.h"
namespace Tegra::Engines {
KeplerCompute::KeplerCompute(MemoryManager& memory_manager) : memory_manager{memory_manager} {}
KeplerCompute::KeplerCompute(Core::System& system, VideoCore::RasterizerInterface& rasterizer,
MemoryManager& memory_manager)
: system{system}, rasterizer{rasterizer}, memory_manager{memory_manager}, upload_state{
memory_manager,
regs.upload} {}
KeplerCompute::~KeplerCompute() = default;
@ -20,14 +29,34 @@ void KeplerCompute::CallMethod(const GPU::MethodCall& method_call) {
regs.reg_array[method_call.method] = method_call.argument;
switch (method_call.method) {
case KEPLER_COMPUTE_REG_INDEX(exec_upload): {
upload_state.ProcessExec(regs.exec_upload.linear != 0);
break;
}
case KEPLER_COMPUTE_REG_INDEX(data_upload): {
bool is_last_call = method_call.IsLastCall();
upload_state.ProcessData(method_call.argument, is_last_call);
if (is_last_call) {
system.GPU().Maxwell3D().dirty_flags.OnMemoryWrite();
}
break;
}
case KEPLER_COMPUTE_REG_INDEX(launch):
// Abort execution since compute shaders can be used to alter game memory (e.g. CUDA
// kernels)
UNREACHABLE_MSG("Compute shaders are not implemented");
ProcessLaunch();
break;
default:
break;
}
}
void KeplerCompute::ProcessLaunch() {
const GPUVAddr launch_desc_loc = regs.launch_desc_loc.Address();
memory_manager.ReadBlockUnsafe(launch_desc_loc, &launch_description,
LaunchParams::NUM_LAUNCH_PARAMETERS * sizeof(u32));
const GPUVAddr code_loc = regs.code_loc.Address() + launch_description.program_start;
LOG_WARNING(HW_GPU, "Compute Kernel Execute at Address 0x{:016x}, STUBBED", code_loc);
}
} // namespace Tegra::Engines