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agc: reserve driver backing before guest direct-memory allocation

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This commit is contained in:
nmzik
2026-10-10 23:33:48 +02:00
parent 947627d10d
commit 9a5dd9faff
3 changed files with 55 additions and 36 deletions
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tests/ShaderRecompilerComputeTests.cpp
+21 -2
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@@ -41903,9 +41903,24 @@ void CheckAgcSystemTable(RenderContext &renderer) {
0xbf800000, 0x85ea807e, 0x88ea106a, 0xbf870003,
0xbefc03ff, 0x8a6ca000, 0xbf920009, 0xbefd210e};
LibKernel::Memory::InstallGpuResources(&renderer);
Require(name, "driver module startup", Gen5Driver::Initialize() == 0,
"driver module startup failed before guest initialization");
const auto direct_memory_size = LibKernel::Memory::KernelGetDirectMemorySize();
int64_t available_offset = -1;
size_t available_size = 0;
Require(name, "remaining direct pool",
LibKernel::Memory::KernelAvailableDirectMemorySize(
0, direct_memory_size, 0, &available_offset, &available_size) == 0 &&
available_size == direct_memory_size - 0x200000,
"driver startup did not reserve its backing in the reported direct pool");
int64_t guest_allocation = -1;
Require(name, "guest consumes remaining direct pool",
LibKernel::Memory::KernelAllocateDirectMemory(
0, direct_memory_size, available_size, 0x4000, 0, &guest_allocation) == 0,
"guest could not allocate all remaining direct memory");
uint32_t state = 0xabcdef01u;
Require(name, "driver startup", Gen5::AgcInit(&state, 13) == 0 && state == 0xabcdef01u,
"Agc startup failed or changed its ignored public state pointer");
"Agc startup required free guest memory or changed its ignored public state pointer");
LibKernel::Memory::VirtualQueryInfo mapping{};
Require(name, "shared driver backing",
LibKernel::Memory::KernelVirtualQuery(reinterpret_cast<void *>(driver_base), 0,
@@ -41932,10 +41947,14 @@ void CheckAgcSystemTable(RenderContext &renderer) {
Require(name, "default instrumentation", *instrumentation == 0,
"unused vertex validation was enabled at startup");
*instrumentation = 0x12340000u;
Require(name, "repeat startup", Gen5::AgcInit(nullptr, 13) == 0 &&
Require(name, "repeat startup", Gen5Driver::Initialize() == 0 &&
Gen5::AgcInit(nullptr, 13) == 0 &&
*instrumentation == 0x12340000u,
"repeat Agc initialization reset existing system state");
*instrumentation = 0;
Require(name, "release guest allocation",
LibKernel::Memory::KernelCheckedReleaseDirectMemory(guest_allocation, available_size) == 0,
"guest allocation release failed");
LibKernel::Memory::InstallGpuResources(nullptr);
std::printf("[host] %-32s ok\n", name);
}