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graphics: execute valid PM4 rewind packets

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This commit is contained in:
nmzik
2026-08-16 21:55:38 +02:00
parent e1366eb91d
commit 6b306f64d5
6 changed files with 59 additions and 0 deletions
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tests/ShaderRecompilerComputeTests.cpp
+39
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@@ -21096,6 +21096,39 @@ void CheckPm4WaitResume(RenderContext &renderer) {
std::printf("[host] %-32s ok\n", "Pm4WaitResume");
}
void CheckPm4RewindResume(RenderContext &renderer) {
GraphicsInitJmpTables();
CommandProcessor processor(renderer);
uint32_t suffix = 0;
const auto address = reinterpret_cast<uint64_t>(&suffix);
std::array<uint32_t, 7> commands{};
commands[0] = KYTY_PM4(2, Pm4::IT_REWIND, 0);
commands[1] = 0;
commands[2] = KYTY_PM4(5, Pm4::IT_WRITE_DATA, 0);
commands[3] = 0;
commands[4] = static_cast<uint32_t>(address);
commands[5] = static_cast<uint32_t>(address >> 32u);
commands[6] = 33;
Pm4Execution execution;
Require("Pm4RewindResume", "pending",
processor.Process(execution, commands.data(), commands.size()) ==
Pm4ProcessResult::Blocked &&
suffix == 0,
"pending rewind did not preserve its command position");
Require("Pm4RewindResume", "patch valid",
Gen5::AgcRewindPatchSetRewindState(commands.data(), 1) == 0 &&
commands[1] == 0x80000000u,
"rewind state patch did not set the valid bit");
Require("Pm4RewindResume", "resume",
processor.Process(execution, commands.data(), commands.size()) ==
Pm4ProcessResult::Complete &&
suffix == 33,
"valid rewind did not resume at the following packet");
std::printf("[host] %-32s ok\n", "Pm4RewindResume");
}
void CheckPm4CeCompletion(RenderContext &renderer) {
GraphicsInitJmpTables();
CommandProcessor processor(renderer);
@@ -21223,6 +21256,11 @@ int main(int argc, char **argv) {
CheckPm4ContextStateOperations(vulkan.RuntimeRenderer());
return 0;
}
if (argc == 2 && std::strcmp(argv[1], "--rewind-only") == 0) {
VulkanHarness vulkan;
CheckPm4RewindResume(vulkan.RuntimeRenderer());
return 0;
}
if (argc == 2 && std::strcmp(argv[1], "--image-overlap-only") == 0) {
CheckDepthAttachmentWrites();
CheckDynamicRenderingState();
@@ -21381,6 +21419,7 @@ int main(int argc, char **argv) {
CheckPm4PolygonOffsetRegisters(vulkan.RuntimeRenderer());
CheckPm4ContextStateOperations(vulkan.RuntimeRenderer());
CheckPm4WaitResume(vulkan.RuntimeRenderer());
CheckPm4RewindResume(vulkan.RuntimeRenderer());
CheckPm4CeCompletion(vulkan.RuntimeRenderer());
CheckEmbeddedFetchVertexOffset();
CheckEmbeddedFetchLaneSpill();