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Merge pull request #8023 from ameerj/kirby-pop-in

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maxwell_3d: Implement a safer CB data upload
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Fernando S 2022-03-16 12:14:08 +01:00 committed by GitHub
commit c3c351e2c2
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 12 additions and 70 deletions
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67
src/video_core/engines/maxwell_3d.cpp
View file

@ -196,7 +196,7 @@ void Maxwell3D::ProcessMethodCall(u32 method, u32 argument, u32 nonshadow_argume
case MAXWELL3D_REG_INDEX(const_buffer.cb_data) + 13:
case MAXWELL3D_REG_INDEX(const_buffer.cb_data) + 14:
case MAXWELL3D_REG_INDEX(const_buffer.cb_data) + 15:
return StartCBData(method);
return ProcessCBData(argument);
case MAXWELL3D_REG_INDEX(cb_bind[0]):
return ProcessCBBind(0);
case MAXWELL3D_REG_INDEX(cb_bind[1]):
@ -257,14 +257,6 @@ void Maxwell3D::CallMacroMethod(u32 method, const std::vector<u32>& parameters)
}
void Maxwell3D::CallMethod(u32 method, u32 method_argument, bool is_last_call) {
if (method == cb_data_state.current) {
regs.reg_array[method] = method_argument;
ProcessCBData(method_argument);
return;
} else if (cb_data_state.current != null_cb_data) {
FinishCBData();
}
// It is an error to write to a register other than the current macro's ARG register before it
// has finished execution.
if (executing_macro != 0) {
@ -311,7 +303,7 @@ void Maxwell3D::CallMultiMethod(u32 method, const u32* base_start, u32 amount,
case MAXWELL3D_REG_INDEX(const_buffer.cb_data) + 13:
case MAXWELL3D_REG_INDEX(const_buffer.cb_data) + 14:
case MAXWELL3D_REG_INDEX(const_buffer.cb_data) + 15:
ProcessCBMultiData(method, base_start, amount);
ProcessCBMultiData(base_start, amount);
break;
default:
for (std::size_t i = 0; i < amount; i++) {
@ -629,46 +621,7 @@ void Maxwell3D::ProcessCBBind(size_t stage_index) {
rasterizer->BindGraphicsUniformBuffer(stage_index, bind_data.index, gpu_addr, size);
}
void Maxwell3D::ProcessCBData(u32 value) {
const u32 id = cb_data_state.id;
cb_data_state.buffer[id][cb_data_state.counter] = value;
// Increment the current buffer position.
regs.const_buffer.cb_pos = regs.const_buffer.cb_pos + 4;
cb_data_state.counter++;
}
void Maxwell3D::StartCBData(u32 method) {
constexpr u32 first_cb_data = MAXWELL3D_REG_INDEX(const_buffer.cb_data);
cb_data_state.start_pos = regs.const_buffer.cb_pos;
cb_data_state.id = method - first_cb_data;
cb_data_state.current = method;
cb_data_state.counter = 0;
ProcessCBData(regs.const_buffer.cb_data[cb_data_state.id]);
}
void Maxwell3D::ProcessCBMultiData(u32 method, const u32* start_base, u32 amount) {
if (cb_data_state.current != method) {
if (cb_data_state.current != null_cb_data) {
FinishCBData();
}
constexpr u32 first_cb_data = MAXWELL3D_REG_INDEX(const_buffer.cb_data);
cb_data_state.start_pos = regs.const_buffer.cb_pos;
cb_data_state.id = method - first_cb_data;
cb_data_state.current = method;
cb_data_state.counter = 0;
}
const std::size_t id = cb_data_state.id;
const std::size_t size = amount;
std::size_t i = 0;
for (; i < size; i++) {
cb_data_state.buffer[id][cb_data_state.counter] = start_base[i];
cb_data_state.counter++;
}
// Increment the current buffer position.
regs.const_buffer.cb_pos = regs.const_buffer.cb_pos + 4 * amount;
}
void Maxwell3D::FinishCBData() {
void Maxwell3D::ProcessCBMultiData(const u32* start_base, u32 amount) {
// Write the input value to the current const buffer at the current position.
const GPUVAddr buffer_address = regs.const_buffer.BufferAddress();
ASSERT(buffer_address != 0);
@ -676,14 +629,16 @@ void Maxwell3D::FinishCBData() {
// Don't allow writing past the end of the buffer.
ASSERT(regs.const_buffer.cb_pos <= regs.const_buffer.cb_size);
const GPUVAddr address{buffer_address + cb_data_state.start_pos};
const std::size_t size = regs.const_buffer.cb_pos - cb_data_state.start_pos;
const GPUVAddr address{buffer_address + regs.const_buffer.cb_pos};
const size_t copy_size = amount * sizeof(u32);
memory_manager.WriteBlock(address, start_base, copy_size);
const u32 id = cb_data_state.id;
memory_manager.WriteBlock(address, cb_data_state.buffer[id].data(), size);
// Increment the current buffer position.
regs.const_buffer.cb_pos += static_cast<u32>(copy_size);
}
cb_data_state.id = null_cb_data;
cb_data_state.current = null_cb_data;
void Maxwell3D::ProcessCBData(u32 value) {
ProcessCBMultiData(&value, 1);
}
Texture::TICEntry Maxwell3D::GetTICEntry(u32 tic_index) const {

15
src/video_core/engines/maxwell_3d.h
View file

@ -1545,10 +1545,8 @@ private:
void ProcessSyncPoint();
/// Handles a write to the CB_DATA[i] register.
void StartCBData(u32 method);
void ProcessCBData(u32 value);
void ProcessCBMultiData(u32 method, const u32* start_base, u32 amount);
void FinishCBData();
void ProcessCBMultiData(const u32* start_base, u32 amount);
/// Handles a write to the CB_BIND register.
void ProcessCBBind(size_t stage_index);
@ -1583,17 +1581,6 @@ private:
/// Interpreter for the macro codes uploaded to the GPU.
std::unique_ptr<MacroEngine> macro_engine;
static constexpr u32 null_cb_data = 0xFFFFFFFF;
struct CBDataState {
static constexpr size_t inline_size = 0x4000;
std::array<std::array<u32, inline_size>, 16> buffer;
u32 current{null_cb_data};
u32 id{null_cb_data};
u32 start_pos{};
u32 counter{};
};
CBDataState cb_data_state;
Upload::State upload_state;
bool execute_on{true};