Use the input process handle to get the correct application's memory

src/audio_core/adsp/apps/audio_renderer/audio_renderer.cpp

@@ -89,11 +89,13 @@ u32 AudioRenderer::Receive(Direction dir) {
 }
 
 void AudioRenderer::SetCommandBuffer(s32 session_id, CpuAddr buffer, u64 size, u64 time_limit,
-                                     u64 applet_resource_user_id, bool reset) noexcept {
+                                     u64 applet_resource_user_id, Kernel::KProcess* process,
+                                     bool reset) noexcept {
     command_buffers[session_id].buffer = buffer;
     command_buffers[session_id].size = size;
     command_buffers[session_id].time_limit = time_limit;
     command_buffers[session_id].applet_resource_user_id = applet_resource_user_id;
+    command_buffers[session_id].process = process;
     command_buffers[session_id].reset_buffer = reset;
 }
 
@@ -173,7 +175,8 @@ void AudioRenderer::Main(std::stop_token stop_token) {
                     // If there are no remaining commands (from the previous list),
                     // this is a new command list, initialize it.
                     if (command_buffer.remaining_command_count == 0) {
-                        command_list_processor.Initialize(system, command_buffer.buffer,
+                        command_list_processor.Initialize(system, *command_buffer.process,
+                                                          command_buffer.buffer,
                                                           command_buffer.size, streams[index]);
                     }
 

src/audio_core/adsp/apps/audio_renderer/audio_renderer.h

@@ -19,6 +19,10 @@ namespace Core {
 class System;
 } // namespace Core
 
+namespace Kernel {
+class KProcess;
+}
+
 namespace AudioCore {
 namespace Sink {
 class Sink;
@@ -69,7 +73,8 @@ public:
     u32 Receive(Direction dir);
 
     void SetCommandBuffer(s32 session_id, CpuAddr buffer, u64 size, u64 time_limit,
-                          u64 applet_resource_user_id, bool reset) noexcept;
+                          u64 applet_resource_user_id, Kernel::KProcess* process,
+                          bool reset) noexcept;
     u32 GetRemainCommandCount(s32 session_id) const noexcept;
     void ClearRemainCommandCount(s32 session_id) noexcept;
     u64 GetRenderingStartTick(s32 session_id) const noexcept;

src/audio_core/adsp/apps/audio_renderer/command_buffer.h

@@ -6,6 +6,10 @@
 #include "audio_core/common/common.h"
 #include "common/common_types.h"
 
+namespace Kernel {
+class KProcess;
+}
+
 namespace AudioCore::ADSP::AudioRenderer {
 
 struct CommandBuffer {
@@ -14,6 +18,7 @@ struct CommandBuffer {
     u64 size{};
     u64 time_limit{};
     u64 applet_resource_user_id{};
+    Kernel::KProcess* process{};
     bool reset_buffer{};
     // Set by the DSP
     u32 remaining_command_count{};

src/audio_core/adsp/apps/audio_renderer/command_list_processor.cpp

@@ -9,14 +9,15 @@
 #include "common/settings.h"
 #include "core/core.h"
 #include "core/core_timing.h"
+#include "core/hle/kernel/k_process.h"
 #include "core/memory.h"
 
 namespace AudioCore::ADSP::AudioRenderer {
 
-void CommandListProcessor::Initialize(Core::System& system_, CpuAddr buffer, u64 size,
-                                      Sink::SinkStream* stream_) {
+void CommandListProcessor::Initialize(Core::System& system_, Kernel::KProcess& process,
+                                      CpuAddr buffer, u64 size, Sink::SinkStream* stream_) {
     system = &system_;
-    memory = &system->ApplicationMemory();
+    memory = &process.GetMemory();
     stream = stream_;
     header = reinterpret_cast<Renderer::CommandListHeader*>(buffer);
     commands = reinterpret_cast<u8*>(buffer + sizeof(Renderer::CommandListHeader));

src/audio_core/adsp/apps/audio_renderer/command_list_processor.h

@@ -16,6 +16,10 @@ class Memory;
 class System;
 } // namespace Core
 
+namespace Kernel {
+class KProcess;
+}
+
 namespace AudioCore {
 namespace Sink {
 class SinkStream;
@@ -40,7 +44,8 @@ public:
      * @param size   - The size of the buffer.
      * @param stream - The stream to be used for sending the samples.
      */
-    void Initialize(Core::System& system, CpuAddr buffer, u64 size, Sink::SinkStream* stream);
+    void Initialize(Core::System& system, Kernel::KProcess& process, CpuAddr buffer, u64 size,
+                    Sink::SinkStream* stream);
 
     /**
      * Set the maximum processing time for this command list.

src/audio_core/renderer/audio_renderer.cpp

@@ -6,6 +6,7 @@
 #include "audio_core/renderer/audio_renderer.h"
 #include "audio_core/renderer/system_manager.h"
 #include "core/core.h"
+#include "core/hle/kernel/k_process.h"
 #include "core/hle/kernel/k_transfer_memory.h"
 #include "core/hle/service/audio/errors.h"
 
@@ -17,7 +18,8 @@ Renderer::Renderer(Core::System& system_, Manager& manager_, Kernel::KEvent* ren
 Result Renderer::Initialize(const AudioRendererParameterInternal& params,
                             Kernel::KTransferMemory* transfer_memory,
                             const u64 transfer_memory_size, const u32 process_handle,
-                            const u64 applet_resource_user_id, const s32 session_id) {
+                            Kernel::KProcess& process, const u64 applet_resource_user_id,
+                            const s32 session_id) {
     if (params.execution_mode == ExecutionMode::Auto) {
         if (!manager.AddSystem(system)) {
             LOG_ERROR(Service_Audio,
@@ -28,7 +30,7 @@ Result Renderer::Initialize(const AudioRendererParameterInternal& params,
     }
 
     initialized = true;
-    system.Initialize(params, transfer_memory, transfer_memory_size, process_handle,
+    system.Initialize(params, transfer_memory, transfer_memory_size, process_handle, process,
                       applet_resource_user_id, session_id);
 
     return ResultSuccess;

src/audio_core/renderer/audio_renderer.h

@@ -14,7 +14,8 @@ class System;
 
 namespace Kernel {
 class KTransferMemory;
-}
+class KProcess;
+} // namespace Kernel
 
 namespace AudioCore {
 struct AudioRendererParameterInternal;
@@ -44,7 +45,8 @@ public:
      */
     Result Initialize(const AudioRendererParameterInternal& params,
                       Kernel::KTransferMemory* transfer_memory, u64 transfer_memory_size,
-                      u32 process_handle, u64 applet_resource_user_id, s32 session_id);
+                      u32 process_handle, Kernel::KProcess& process, u64 applet_resource_user_id,
+                      s32 session_id);
 
     /**
      * Finalize the renderer for shutdown.

src/audio_core/renderer/system.cpp

@@ -32,6 +32,7 @@
 #include "core/core.h"
 #include "core/core_timing.h"
 #include "core/hle/kernel/k_event.h"
+#include "core/hle/kernel/k_process.h"
 #include "core/hle/kernel/k_transfer_memory.h"
 #include "core/memory.h"
 
@@ -101,7 +102,8 @@ System::System(Core::System& core_, Kernel::KEvent* adsp_rendered_event_)
 
 Result System::Initialize(const AudioRendererParameterInternal& params,
                           Kernel::KTransferMemory* transfer_memory, u64 transfer_memory_size,
-                          u32 process_handle_, u64 applet_resource_user_id_, s32 session_id_) {
+                          u32 process_handle_, Kernel::KProcess& process_,
+                          u64 applet_resource_user_id_, s32 session_id_) {
     if (!CheckValidRevision(params.revision)) {
         return Service::Audio::ResultInvalidRevision;
     }
@@ -117,6 +119,7 @@ Result System::Initialize(const AudioRendererParameterInternal& params,
     behavior.SetUserLibRevision(params.revision);
 
     process_handle = process_handle_;
+    process = &process_;
     applet_resource_user_id = applet_resource_user_id_;
     session_id = session_id_;
 
@@ -129,7 +132,7 @@ Result System::Initialize(const AudioRendererParameterInternal& params,
     render_device = params.rendering_device;
     execution_mode = params.execution_mode;
 
-    core.ApplicationMemory().ZeroBlock(transfer_memory->GetSourceAddress(), transfer_memory_size);
+    process->GetMemory().ZeroBlock(transfer_memory->GetSourceAddress(), transfer_memory_size);
 
     // Note: We're not actually using the transfer memory because it's a pain to code for.
     // Allocate the memory normally instead and hope the game doesn't try to read anything back
@@ -613,7 +616,8 @@ void System::SendCommandToDsp() {
                 static_cast<u64>((time_limit_percent / 100) * 2'880'000.0 *
                                  (static_cast<f32>(render_time_limit_percent) / 100.0f))};
             audio_renderer.SetCommandBuffer(session_id, translated_addr, command_size, time_limit,
-                                            applet_resource_user_id, reset_command_buffers);
+                                            applet_resource_user_id, process,
+                                            reset_command_buffers);
             reset_command_buffers = false;
             command_buffer_size = command_size;
             if (remaining_command_count == 0) {

src/audio_core/renderer/system.h

@@ -29,6 +29,7 @@ class System;
 
 namespace Kernel {
 class KEvent;
+class KProcess;
 class KTransferMemory;
 } // namespace Kernel
 
@@ -80,7 +81,8 @@ public:
      */
     Result Initialize(const AudioRendererParameterInternal& params,
                       Kernel::KTransferMemory* transfer_memory, u64 transfer_memory_size,
-                      u32 process_handle, u64 applet_resource_user_id, s32 session_id);
+                      u32 process_handle, Kernel::KProcess& process, u64 applet_resource_user_id,
+                      s32 session_id);
 
     /**
      * Finalize the system.
@@ -275,6 +277,8 @@ private:
     Common::Event terminate_event{};
     /// Does what locks do
     std::mutex lock{};
+    /// Process this audio render is operating within, used for memory reads/writes.
+    Kernel::KProcess* process{};
     /// Handle for the process for this system, unused
     u32 process_handle{};
     /// Applet resource id for this system, unused

src/core/hle/service/audio/audren_u.cpp

@@ -35,10 +35,11 @@ public:
     explicit IAudioRenderer(Core::System& system_, Manager& manager_,
                             AudioCore::AudioRendererParameterInternal& params,
                             Kernel::KTransferMemory* transfer_memory, u64 transfer_memory_size,
-                            u32 process_handle, u64 applet_resource_user_id, s32 session_id)
+                            u32 process_handle, Kernel::KProcess& process_,
+                            u64 applet_resource_user_id, s32 session_id)
         : ServiceFramework{system_, "IAudioRenderer"}, service_context{system_, "IAudioRenderer"},
           rendered_event{service_context.CreateEvent("IAudioRendererEvent")}, manager{manager_},
-          impl{std::make_unique<Renderer>(system_, manager, rendered_event)} {
+          impl{std::make_unique<Renderer>(system_, manager, rendered_event)}, process{process_} {
         // clang-format off
         static const FunctionInfo functions[] = {
             {0, &IAudioRenderer::GetSampleRate, "GetSampleRate"},
@@ -59,13 +60,15 @@ public:
         // clang-format on
         RegisterHandlers(functions);
 
-        impl->Initialize(params, transfer_memory, transfer_memory_size, process_handle,
+        process.Open();
+        impl->Initialize(params, transfer_memory, transfer_memory_size, process_handle, process,
                          applet_resource_user_id, session_id);
     }
 
     ~IAudioRenderer() override {
         impl->Finalize();
         service_context.CloseEvent(rendered_event);
+        process.Close();
     }
 
 private:
@@ -235,6 +238,7 @@ private:
     Kernel::KEvent* rendered_event;
     Manager& manager;
     std::unique_ptr<Renderer> impl;
+    Kernel::KProcess& process;
     Common::ScratchBuffer<u8> output_buffer;
     Common::ScratchBuffer<u8> performance_buffer;
 };
@@ -455,7 +459,7 @@ void AudRenU::OpenAudioRenderer(HLERequestContext& ctx) {
         return;
     }
 
-    auto process{ctx.GetObjectFromHandle<Kernel::KProcess>(process_handle)};
+    auto process{ctx.GetObjectFromHandle<Kernel::KProcess>(process_handle).GetPointerUnsafe()};
     auto transfer_memory{ctx.GetObjectFromHandle<Kernel::KTransferMemory>(transfer_memory_handle)};
 
     const auto session_id{impl->GetSessionId()};
@@ -472,7 +476,7 @@ void AudRenU::OpenAudioRenderer(HLERequestContext& ctx) {
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
     rb.Push(ResultSuccess);
     rb.PushIpcInterface<IAudioRenderer>(system, *impl, params, transfer_memory.GetPointerUnsafe(),
-                                        transfer_memory_size, process_handle,
+                                        transfer_memory_size, process_handle, *process,
                                         applet_resource_user_id, session_id);
 }
 
@@ -522,7 +526,7 @@ void AudRenU::GetAudioDeviceService(HLERequestContext& ctx) {
 }
 
 void AudRenU::OpenAudioRendererForManualExecution(HLERequestContext& ctx) {
-    LOG_DEBUG(Service_Audio, "called");
+    LOG_ERROR(Service_Audio, "called. Implement me!");
 }
 
 void AudRenU::GetAudioDeviceServiceWithRevisionInfo(HLERequestContext& ctx) {