summaryrefslogtreecommitdiffstats
path: root/src/video_core/engines/puller.cpp
blob: 8dd34c04ab4f38c076fdcd7a1881d890fb8b10b4 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
// SPDX-FileCopyrightText: 2022 yuzu Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later

#include "common/assert.h"
#include "common/logging/log.h"
#include "common/settings.h"
#include "core/core.h"
#include "video_core/control/channel_state.h"
#include "video_core/dma_pusher.h"
#include "video_core/engines/fermi_2d.h"
#include "video_core/engines/kepler_compute.h"
#include "video_core/engines/kepler_memory.h"
#include "video_core/engines/maxwell_3d.h"
#include "video_core/engines/maxwell_dma.h"
#include "video_core/engines/puller.h"
#include "video_core/gpu.h"
#include "video_core/memory_manager.h"
#include "video_core/rasterizer_interface.h"

namespace Tegra::Engines {

Puller::Puller(GPU& gpu_, MemoryManager& memory_manager_, DmaPusher& dma_pusher_,
               Control::ChannelState& channel_state_)
    : gpu{gpu_}, memory_manager{memory_manager_}, dma_pusher{dma_pusher_}, channel_state{
                                                                               channel_state_} {}

Puller::~Puller() = default;

void Puller::ProcessBindMethod(const MethodCall& method_call) {
    // Bind the current subchannel to the desired engine id.
    LOG_DEBUG(HW_GPU, "Binding subchannel {} to engine {}", method_call.subchannel,
              method_call.argument);
    const auto engine_id = static_cast<EngineID>(method_call.argument);
    bound_engines[method_call.subchannel] = engine_id;
    switch (engine_id) {
    case EngineID::FERMI_TWOD_A:
        dma_pusher.BindSubchannel(channel_state.fermi_2d.get(), method_call.subchannel,
                                  EngineTypes::Fermi2D);
        break;
    case EngineID::MAXWELL_B:
        dma_pusher.BindSubchannel(channel_state.maxwell_3d.get(), method_call.subchannel,
                                  EngineTypes::Maxwell3D);
        break;
    case EngineID::KEPLER_COMPUTE_B:
        dma_pusher.BindSubchannel(channel_state.kepler_compute.get(), method_call.subchannel,
                                  EngineTypes::KeplerCompute);
        break;
    case EngineID::MAXWELL_DMA_COPY_A:
        dma_pusher.BindSubchannel(channel_state.maxwell_dma.get(), method_call.subchannel,
                                  EngineTypes::MaxwellDMA);
        break;
    case EngineID::KEPLER_INLINE_TO_MEMORY_B:
        dma_pusher.BindSubchannel(channel_state.kepler_memory.get(), method_call.subchannel,
                                  EngineTypes::KeplerMemory);
        break;
    default:
        UNIMPLEMENTED_MSG("Unimplemented engine {:04X}", engine_id);
        break;
    }
}

void Puller::ProcessFenceActionMethod() {
    switch (regs.fence_action.op) {
    case Puller::FenceOperation::Acquire:
        // UNIMPLEMENTED_MSG("Channel Scheduling pending.");
        // WaitFence(regs.fence_action.syncpoint_id, regs.fence_value);
        rasterizer->ReleaseFences();
        break;
    case Puller::FenceOperation::Increment:
        rasterizer->SignalSyncPoint(regs.fence_action.syncpoint_id);
        break;
    default:
        UNIMPLEMENTED_MSG("Unimplemented operation {}", regs.fence_action.op.Value());
        break;
    }
}

void Puller::ProcessSemaphoreTriggerMethod() {
    const auto semaphoreOperationMask = 0xF;
    const auto op =
        static_cast<GpuSemaphoreOperation>(regs.semaphore_trigger & semaphoreOperationMask);
    if (op == GpuSemaphoreOperation::WriteLong) {
        const GPUVAddr sequence_address{regs.semaphore_address.SemaphoreAddress()};
        const u32 payload = regs.semaphore_sequence;
        rasterizer->Query(sequence_address, VideoCommon::QueryType::Payload,
                          VideoCommon::QueryPropertiesFlags::HasTimeout, payload, 0);
    } else {
        do {
            const u32 word{memory_manager.Read<u32>(regs.semaphore_address.SemaphoreAddress())};
            regs.acquire_source = true;
            regs.acquire_value = regs.semaphore_sequence;
            if (op == GpuSemaphoreOperation::AcquireEqual) {
                regs.acquire_active = true;
                regs.acquire_mode = false;
                if (word != regs.acquire_value) {
                    rasterizer->ReleaseFences();
                    continue;
                }
            } else if (op == GpuSemaphoreOperation::AcquireGequal) {
                regs.acquire_active = true;
                regs.acquire_mode = true;
                if (word < regs.acquire_value) {
                    rasterizer->ReleaseFences();
                    continue;
                }
            } else if (op == GpuSemaphoreOperation::AcquireMask) {
                if (word && regs.semaphore_sequence == 0) {
                    rasterizer->ReleaseFences();
                    continue;
                }
            } else {
                LOG_ERROR(HW_GPU, "Invalid semaphore operation");
            }
        } while (false);
    }
}

void Puller::ProcessSemaphoreRelease() {
    const GPUVAddr sequence_address{regs.semaphore_address.SemaphoreAddress()};
    const u32 payload = regs.semaphore_release;
    rasterizer->Query(sequence_address, VideoCommon::QueryType::Payload,
                      VideoCommon::QueryPropertiesFlags::IsAFence, payload, 0);
}

void Puller::ProcessSemaphoreAcquire() {
    u32 word = memory_manager.Read<u32>(regs.semaphore_address.SemaphoreAddress());
    const auto value = regs.semaphore_acquire;
    while (word != value) {
        regs.acquire_active = true;
        regs.acquire_value = value;
        rasterizer->ReleaseFences();
        word = memory_manager.Read<u32>(regs.semaphore_address.SemaphoreAddress());
        // TODO(kemathe73) figure out how to do the acquire_timeout
        regs.acquire_mode = false;
        regs.acquire_source = false;
    }
}

/// Calls a GPU puller method.
void Puller::CallPullerMethod(const MethodCall& method_call) {
    regs.reg_array[method_call.method] = method_call.argument;
    const auto method = static_cast<BufferMethods>(method_call.method);

    switch (method) {
    case BufferMethods::BindObject: {
        ProcessBindMethod(method_call);
        break;
    }
    case BufferMethods::Nop:
    case BufferMethods::SemaphoreAddressHigh:
    case BufferMethods::SemaphoreAddressLow:
    case BufferMethods::SemaphoreSequencePayload:
    case BufferMethods::SyncpointPayload:
    case BufferMethods::WrcacheFlush:
        break;
    case BufferMethods::RefCnt:
        rasterizer->SignalReference();
        break;
    case BufferMethods::SyncpointOperation:
        ProcessFenceActionMethod();
        break;
    case BufferMethods::WaitForIdle:
        rasterizer->WaitForIdle();
        break;
    case BufferMethods::SemaphoreOperation: {
        ProcessSemaphoreTriggerMethod();
        break;
    }
    case BufferMethods::NonStallInterrupt: {
        LOG_ERROR(HW_GPU, "Special puller engine method NonStallInterrupt not implemented");
        break;
    }
    case BufferMethods::MemOpA: {
        LOG_ERROR(HW_GPU, "Memory Operation A");
        break;
    }
    case BufferMethods::MemOpB: {
        // Implement this better.
        rasterizer->InvalidateGPUCache();
        break;
    }
    case BufferMethods::MemOpC:
    case BufferMethods::MemOpD: {
        LOG_ERROR(HW_GPU, "Memory Operation C,D");
        break;
    }
    case BufferMethods::SemaphoreAcquire: {
        ProcessSemaphoreAcquire();
        break;
    }
    case BufferMethods::SemaphoreRelease: {
        ProcessSemaphoreRelease();
        break;
    }
    case BufferMethods::Yield: {
        // TODO(Kmather73): Research and implement this method.
        LOG_ERROR(HW_GPU, "Special puller engine method Yield not implemented");
        break;
    }
    default:
        LOG_ERROR(HW_GPU, "Special puller engine method {:X} not implemented", method);
        break;
    }
}

/// Calls a GPU engine method.
void Puller::CallEngineMethod(const MethodCall& method_call) {
    const EngineID engine = bound_engines[method_call.subchannel];

    switch (engine) {
    case EngineID::FERMI_TWOD_A:
        channel_state.fermi_2d->CallMethod(method_call.method, method_call.argument,
                                           method_call.IsLastCall());
        break;
    case EngineID::MAXWELL_B:
        channel_state.maxwell_3d->CallMethod(method_call.method, method_call.argument,
                                             method_call.IsLastCall());
        break;
    case EngineID::KEPLER_COMPUTE_B:
        channel_state.kepler_compute->CallMethod(method_call.method, method_call.argument,
                                                 method_call.IsLastCall());
        break;
    case EngineID::MAXWELL_DMA_COPY_A:
        channel_state.maxwell_dma->CallMethod(method_call.method, method_call.argument,
                                              method_call.IsLastCall());
        break;
    case EngineID::KEPLER_INLINE_TO_MEMORY_B:
        channel_state.kepler_memory->CallMethod(method_call.method, method_call.argument,
                                                method_call.IsLastCall());
        break;
    default:
        UNIMPLEMENTED_MSG("Unimplemented engine");
        break;
    }
}

/// Calls a GPU engine multivalue method.
void Puller::CallEngineMultiMethod(u32 method, u32 subchannel, const u32* base_start, u32 amount,
                                   u32 methods_pending) {
    const EngineID engine = bound_engines[subchannel];

    switch (engine) {
    case EngineID::FERMI_TWOD_A:
        channel_state.fermi_2d->CallMultiMethod(method, base_start, amount, methods_pending);
        break;
    case EngineID::MAXWELL_B:
        channel_state.maxwell_3d->CallMultiMethod(method, base_start, amount, methods_pending);
        break;
    case EngineID::KEPLER_COMPUTE_B:
        channel_state.kepler_compute->CallMultiMethod(method, base_start, amount, methods_pending);
        break;
    case EngineID::MAXWELL_DMA_COPY_A:
        channel_state.maxwell_dma->CallMultiMethod(method, base_start, amount, methods_pending);
        break;
    case EngineID::KEPLER_INLINE_TO_MEMORY_B:
        channel_state.kepler_memory->CallMultiMethod(method, base_start, amount, methods_pending);
        break;
    default:
        UNIMPLEMENTED_MSG("Unimplemented engine");
        break;
    }
}

/// Calls a GPU method.
void Puller::CallMethod(const MethodCall& method_call) {
    LOG_TRACE(HW_GPU, "Processing method {:08X} on subchannel {}", method_call.method,
              method_call.subchannel);

    ASSERT(method_call.subchannel < bound_engines.size());

    if (ExecuteMethodOnEngine(method_call.method)) {
        CallEngineMethod(method_call);
    } else {
        CallPullerMethod(method_call);
    }
}

/// Calls a GPU multivalue method.
void Puller::CallMultiMethod(u32 method, u32 subchannel, const u32* base_start, u32 amount,
                             u32 methods_pending) {
    LOG_TRACE(HW_GPU, "Processing method {:08X} on subchannel {}", method, subchannel);

    ASSERT(subchannel < bound_engines.size());

    if (ExecuteMethodOnEngine(method)) {
        CallEngineMultiMethod(method, subchannel, base_start, amount, methods_pending);
    } else {
        for (u32 i = 0; i < amount; i++) {
            CallPullerMethod(MethodCall{
                method,
                base_start[i],
                subchannel,
                methods_pending - i,
            });
        }
    }
}

void Puller::BindRasterizer(VideoCore::RasterizerInterface* rasterizer_) {
    rasterizer = rasterizer_;
}

/// Determines where the method should be executed.
[[nodiscard]] bool Puller::ExecuteMethodOnEngine(u32 method) {
    const auto buffer_method = static_cast<BufferMethods>(method);
    return buffer_method >= BufferMethods::NonPullerMethods;
}

} // namespace Tegra::Engines