From fcae5d54da0ca653094e4fe1428490ffc300a0fe Mon Sep 17 00:00:00 2001
From: Billy Laws <blaws05@gmail.com>
Date: Sun, 9 Aug 2020 14:58:34 +0100
Subject: [PATCH] Switch NvHostCtrlGpu to use QueryEvent

---
 .../services/nvdrv/devices/nvhost_ctrl_gpu.cpp   | 16 ++++++++++++++--
 .../services/nvdrv/devices/nvhost_ctrl_gpu.h     |  6 ++++++
 2 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/app/src/main/cpp/skyline/services/nvdrv/devices/nvhost_ctrl_gpu.cpp b/app/src/main/cpp/skyline/services/nvdrv/devices/nvhost_ctrl_gpu.cpp
index 0bf7b90b..d658b569 100644
--- a/app/src/main/cpp/skyline/services/nvdrv/devices/nvhost_ctrl_gpu.cpp
+++ b/app/src/main/cpp/skyline/services/nvdrv/devices/nvhost_ctrl_gpu.cpp
@@ -5,12 +5,12 @@
 #include "nvhost_ctrl_gpu.h"
 
 namespace skyline::service::nvdrv::device {
-    NvHostCtrlGpu::NvHostCtrlGpu(const DeviceState &state) : NvDevice(state, NvDeviceType::nvhost_ctrl_gpu, {
+    NvHostCtrlGpu::NvHostCtrlGpu(const DeviceState &state) : errorNotifierEvent(std::make_shared<type::KEvent>(state)), unknownEvent(std::make_shared<type::KEvent>(state)), NvDevice(state, NvDeviceType::nvhost_ctrl_gpu, {
         {0x4701, NFUNC(NvHostCtrlGpu::ZCullGetCtxSize)},
         {0x4702, NFUNC(NvHostCtrlGpu::ZCullGetInfo)},
         {0x4706, NFUNC(NvHostCtrlGpu::GetTpcMasks)},
         {0x4705, NFUNC(NvHostCtrlGpu::GetCharacteristics)},
-        {0x4714, NFUNC(NvHostCtrlGpu::GetActiveSlotMask)}
+        {0x4714, NFUNC(NvHostCtrlGpu::GetActiveSlotMask)},
     }) {}
 
     void NvHostCtrlGpu::ZCullGetCtxSize(IoctlData &buffer) {
@@ -146,4 +146,16 @@ namespace skyline::service::nvdrv::device {
 
         state.process->WriteMemory(data, buffer.output[0].address);
     }
+
+    std::shared_ptr<type::KEvent> NvHostCtrlGpu::QueryEvent(u32 eventId) {
+        switch (eventId) {
+            case 1:
+                return errorNotifierEvent;
+            case 2:
+                return unknownEvent;
+            default:
+                return nullptr;
+        }
+    }
+
 }
diff --git a/app/src/main/cpp/skyline/services/nvdrv/devices/nvhost_ctrl_gpu.h b/app/src/main/cpp/skyline/services/nvdrv/devices/nvhost_ctrl_gpu.h
index 3565a256..cbccfb72 100644
--- a/app/src/main/cpp/skyline/services/nvdrv/devices/nvhost_ctrl_gpu.h
+++ b/app/src/main/cpp/skyline/services/nvdrv/devices/nvhost_ctrl_gpu.h
@@ -10,6 +10,10 @@ namespace skyline::service::nvdrv::device {
      * @brief NvHostCtrlGpu (/dev/nvhost-ctrl-gpu) is used for context independent operations on the underlying GPU (https://switchbrew.org/wiki/NV_services#.2Fdev.2Fnvhost-ctrl-gpu)
      */
     class NvHostCtrlGpu : public NvDevice {
+      private:
+        std::shared_ptr<type::KEvent> errorNotifierEvent;
+        std::shared_ptr<type::KEvent> unknownEvent;
+
       public:
         NvHostCtrlGpu(const DeviceState &state);
 
@@ -37,5 +41,7 @@ namespace skyline::service::nvdrv::device {
          * @brief This returns the mask value for a ZBC slot (https://switchbrew.org/wiki/NV_services#NVGPU_GPU_IOCTL_ZBC_GET_ACTIVE_SLOT_MASK)
          */
         void GetActiveSlotMask(IoctlData &buffer);
+
+        std::shared_ptr<type::KEvent> QueryEvent(u32 eventId);
     };
 }