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graphics: separate IRQ for GPU driven flips

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This commit is contained in:
psucien 2024-05-14 21:33:20 +02:00
parent 98316575fb
commit 8677972505
4 changed files with 63 additions and 33 deletions
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52
src/core/platform.h
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@ -24,51 +24,63 @@ enum class InterruptId : u32 {
Compute4RelMem = 4u,
Compute5RelMem = 5u,
Compute6RelMem = 6u,
GfxEop = 0x40u
GfxEop = 7u,
GfxFlip = 8u
};
using IrqHandler = std::function<void(InterruptId)>;
struct IrqController {
void RegisterOnce(IrqHandler handler) {
std::unique_lock lock{m_lock};
one_time_subscribers.emplace(handler);
void RegisterOnce(InterruptId irq, IrqHandler handler) {
ASSERT_MSG(static_cast<u32>(irq) < irq_contexts.size(), "Invalid IRQ number");
auto& ctx = irq_contexts[static_cast<u32>(irq)];
std::unique_lock lock{ctx.m_lock};
ctx.one_time_subscribers.emplace(handler);
}
void Register(IrqHandler handler) {
ASSERT_MSG(!persistent_handler.has_value(),
void Register(InterruptId irq, IrqHandler handler) {
ASSERT_MSG(static_cast<u32>(irq) < irq_contexts.size(), "Invalid IRQ number");
auto& ctx = irq_contexts[static_cast<u32>(irq)];
ASSERT_MSG(!ctx.persistent_handler.has_value(),
"Too many persistent handlers"); // Add a slot map if so
std::unique_lock lock{m_lock};
persistent_handler.emplace(handler);
std::unique_lock lock{ctx.m_lock};
ctx.persistent_handler.emplace(handler);
}
void Unregister() {
std::unique_lock lock{m_lock};
persistent_handler.reset();
void Unregister(InterruptId irq) {
ASSERT_MSG(static_cast<u32>(irq) < irq_contexts.size(), "Invalid IRQ number");
auto& ctx = irq_contexts[static_cast<u32>(irq)];
std::unique_lock lock{ctx.m_lock};
ctx.persistent_handler.reset();
}
void Signal(InterruptId irq) {
std::unique_lock lock{m_lock};
ASSERT_MSG(static_cast<u32>(irq) < irq_contexts.size(), "Unexpected IRQ signaled");
auto& ctx = irq_contexts[static_cast<u32>(irq)];
std::unique_lock lock{ctx.m_lock};
LOG_TRACE(Core, "IRQ signaled: {}", magic_enum::enum_name(irq));
if (persistent_handler) {
persistent_handler.value()(irq);
if (ctx.persistent_handler) {
ctx.persistent_handler.value()(irq);
}
while (!one_time_subscribers.empty()) {
const auto& h = one_time_subscribers.front();
while (!ctx.one_time_subscribers.empty()) {
const auto& h = ctx.one_time_subscribers.front();
h(irq);
one_time_subscribers.pop();
ctx.one_time_subscribers.pop();
}
}
private:
std::optional<IrqHandler> persistent_handler{};
std::queue<IrqHandler> one_time_subscribers{};
std::mutex m_lock{};
struct IrqContext {
std::optional<IrqHandler> persistent_handler{};
std::queue<IrqHandler> one_time_subscribers{};
std::mutex m_lock{};
};
std::array<IrqContext, magic_enum::enum_count<InterruptId>()> irq_contexts{};
};
using IrqC = Common::Singleton<IrqController>;