From f94d8f960361e36c5436717924bda5a3a6c6d47a Mon Sep 17 00:00:00 2001
From: bunnei <bunneidev@gmail.com>
Date: Wed, 3 Dec 2014 01:04:22 -0500
Subject: GSP: Trigger GPU interrupts at more accurate locations.

---
 src/core/hle/service/gsp_gpu.cpp | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

(limited to 'src/core/hle/service/gsp_gpu.cpp')

diff --git a/src/core/hle/service/gsp_gpu.cpp b/src/core/hle/service/gsp_gpu.cpp
index b03060ed..34eabac4 100644
--- a/src/core/hle/service/gsp_gpu.cpp
+++ b/src/core/hle/service/gsp_gpu.cpp
@@ -173,6 +173,7 @@ static void RegisterInterruptRelayQueue(Service::Interface* self) {
  * Signals that the specified interrupt type has occurred to userland code
  * @param interrupt_id ID of interrupt that is being signalled
  * @todo This should probably take a thread_id parameter and only signal this thread?
+ * @todo This probably does not belong in the GSP module, instead move to video_core
  */
 void SignalInterrupt(InterruptId interrupt_id) {
     if (0 == g_interrupt_event) {
@@ -211,6 +212,7 @@ static void ExecuteCommand(const Command& command, u32 thread_id) {
         memcpy(Memory::GetPointer(command.dma_request.dest_address),
                Memory::GetPointer(command.dma_request.source_address),
                command.dma_request.size);
+        SignalInterrupt(InterruptId::DMA);
         break;
 
     // ctrulib homebrew sends all relevant command list data with this command,
@@ -219,13 +221,13 @@ static void ExecuteCommand(const Command& command, u32 thread_id) {
     case CommandId::SET_COMMAND_LIST_LAST:
     {
         auto& params = command.set_command_list_last;
+
         WriteGPURegister(GPU_REG_INDEX(command_processor_config.address), Memory::VirtualToPhysicalAddress(params.address) >> 3);
         WriteGPURegister(GPU_REG_INDEX(command_processor_config.size), params.size);
 
         // TODO: Not sure if we are supposed to always write this .. seems to trigger processing though
         WriteGPURegister(GPU_REG_INDEX(command_processor_config.trigger), 1);
 
-        SignalInterrupt(InterruptId::P3D);
         break;
     }
 
@@ -243,6 +245,8 @@ static void ExecuteCommand(const Command& command, u32 thread_id) {
         WriteGPURegister(GPU_REG_INDEX(memory_fill_config[1].address_end), Memory::VirtualToPhysicalAddress(params.end2) >> 3);
         WriteGPURegister(GPU_REG_INDEX(memory_fill_config[1].size), params.end2 - params.start2);
         WriteGPURegister(GPU_REG_INDEX(memory_fill_config[1].value), params.value2);
+
+        SignalInterrupt(InterruptId::PSC0);
         break;
     }
 
@@ -256,14 +260,9 @@ static void ExecuteCommand(const Command& command, u32 thread_id) {
         WriteGPURegister(GPU_REG_INDEX(display_transfer_config.flags), params.flags);
         WriteGPURegister(GPU_REG_INDEX(display_transfer_config.trigger), 1);
 
-        // TODO(bunnei): Signalling all of these interrupts here is totally wrong, but it seems to
-        // work well enough for running demos. Need to figure out how these all work and trigger
-        // them correctly.
-        SignalInterrupt(InterruptId::PSC0);
+        // TODO(bunnei): Determine if these interrupts should be signalled here.
         SignalInterrupt(InterruptId::PSC1);
         SignalInterrupt(InterruptId::PPF);
-        SignalInterrupt(InterruptId::P3D);
-        SignalInterrupt(InterruptId::DMA);
 
         // Update framebuffer information if requested
         for (int screen_id = 0; screen_id < 2; ++screen_id) {
-- 
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