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Merge pull request #4903 from bunnei/remove-gpu-integrity

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video_core: dma_pusher: Remove integrity check on command lists.
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bunnei 2020-11-08 02:48:22 -08:00 committed by GitHub
commit 7bf9f9ae49
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 1 additions and 29 deletions
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1
src/core/hle/service/nvdrv/devices/nvhost_gpu.cpp
View File

@ -214,7 +214,6 @@ u32 nvhost_gpu::SubmitGPFIFOImpl(IoctlSubmitGpfifo& params, std::vector<u8>& out
params.fence_out.value = syncpoint_manager.GetSyncpointMax(params.fence_out.id);
}
entries.RefreshIntegrityChecks(gpu);
gpu.PushGPUEntries(std::move(entries));
if (params.flags.add_increment.Value()) {

26
src/video_core/dma_pusher.cpp
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@ -13,20 +13,6 @@
namespace Tegra {
void CommandList::RefreshIntegrityChecks(GPU& gpu) {
command_list_hashes.resize(command_lists.size());
for (std::size_t index = 0; index < command_lists.size(); ++index) {
const CommandListHeader command_list_header = command_lists[index];
std::vector<CommandHeader> command_headers(command_list_header.size);
gpu.MemoryManager().ReadBlockUnsafe(command_list_header.addr, command_headers.data(),
command_list_header.size * sizeof(u32));
command_list_hashes[index] =
Common::CityHash64(reinterpret_cast<char*>(command_headers.data()),
command_list_header.size * sizeof(u32));
}
}
DmaPusher::DmaPusher(Core::System& system, GPU& gpu) : gpu{gpu}, system{system} {}
DmaPusher::~DmaPusher() = default;
@ -77,8 +63,7 @@ bool DmaPusher::Step() {
dma_pushbuffer.pop();
} else {
const CommandListHeader command_list_header{
command_list.command_lists[dma_pushbuffer_subindex]};
const u64 next_hash = command_list.command_list_hashes[dma_pushbuffer_subindex++];
command_list.command_lists[dma_pushbuffer_subindex++]};
const GPUVAddr dma_get = command_list_header.addr;
if (dma_pushbuffer_subindex >= command_list.command_lists.size()) {
@ -95,15 +80,6 @@ bool DmaPusher::Step() {
command_headers.resize(command_list_header.size);
gpu.MemoryManager().ReadBlockUnsafe(dma_get, command_headers.data(),
command_list_header.size * sizeof(u32));
// Integrity check
const u64 new_hash = Common::CityHash64(reinterpret_cast<char*>(command_headers.data()),
command_list_header.size * sizeof(u32));
if (new_hash != next_hash) {
LOG_CRITICAL(HW_GPU, "CommandList at addr=0x{:X} is corrupt, skipping!", dma_get);
dma_pushbuffer.pop();
return true;
}
}
for (std::size_t index = 0; index < command_headers.size();) {
const CommandHeader& command_header = command_headers[index];

3
src/video_core/dma_pusher.h
View File

@ -90,10 +90,7 @@ struct CommandList final {
explicit CommandList(std::vector<Tegra::CommandHeader>&& prefetch_command_list)
: prefetch_command_list{std::move(prefetch_command_list)} {}
void RefreshIntegrityChecks(GPU& gpu);
std::vector<Tegra::CommandListHeader> command_lists;
std::vector<u64> command_list_hashes;
std::vector<Tegra::CommandHeader> prefetch_command_list;
};