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Fix a potential GPFIFO submission race (#3378)

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The syncpoint maximum value represents the maximum possible syncpt value at a given time, however due to PBs being submitted before max was incremented, for a brief moment of time this is not the case which could lead to invalid behaviour if a game waits on the fence at that specific time.
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Billy Laws 2022-06-04 20:36:36 +01:00 committed by GitHub
parent d03124a992
commit 2073ba2919
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 2 additions and 2 deletions
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4
Ryujinx.HLE/HOS/Services/Nv/NvDrvServices/NvHostChannel/NvHostChannelDeviceFile.cs
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@ -429,8 +429,6 @@ namespace Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvHostChannel
Channel.PushHostCommandBuffer(CreateWaitCommandBuffer(header.Fence));
}
Channel.PushEntries(entries);
header.Fence.Id = _channelSyncpoint.Id;
if (header.Flags.HasFlag(SubmitGpfifoFlags.FenceIncrement) || header.Flags.HasFlag(SubmitGpfifoFlags.IncrementWithValue))
@ -449,6 +447,8 @@ namespace Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvHostChannel
header.Fence.Value = _device.System.HostSyncpoint.ReadSyncpointMaxValue(header.Fence.Id);
}
Channel.PushEntries(entries);
if (header.Flags.HasFlag(SubmitGpfifoFlags.FenceIncrement))
{
Channel.PushHostCommandBuffer(CreateIncrementCommandBuffer(ref header.Fence, header.Flags));