nefarius/qxl-wddm-dod
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Use frame buffer in VGA mode only

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Framebuffer should only be used in VGA mode, as WDDM DOD
driver doesn't use the frame buffer (bar0), so no
reason to map in into memory. However the mode is only known
at runtime therefore framebuffer logic should be active when the
driver is operating in vga mode only.

There were rare BSOD failures when the mapping failed.

Signed-off-by: Sameeh Jubran <sameeh@daynix.com>
Signed-off-by: Dmitry Fleytman <dmitry@daynix.com>
This commit is contained in:
Sameeh Jubran 2016-09-26 16:00:07 +03:00 committed by Frediano Ziglio
parent f5527d0ae3
commit 2ab3b7a1fc
2 changed files with 25 additions and 17 deletions
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38
qxldod/QxlDod.cpp
View File

@ -222,9 +222,7 @@ VOID QxlDod::CleanUp(VOID)
{
if (m_CurrentModes[Source].FrameBuffer.Ptr)
{
UnmapFrameBuffer(m_CurrentModes[Source].FrameBuffer.Ptr, m_CurrentModes[Source].DispInfo.Height * m_CurrentModes[Source].DispInfo.Pitch);
m_CurrentModes[Source].FrameBuffer.Ptr = NULL;
m_CurrentModes[Source].Flags.FrameBufferIsActive = FALSE;
m_pHWDevice->ReleaseFrameBuffer(&m_CurrentModes[Source]);
}
}
}
@ -1395,11 +1393,7 @@ NTSTATUS QxlDod::CommitVidPn(_In_ CONST DXGKARG_COMMITVIDPN* CONST pCommitVidPn)
if (m_CurrentModes[pCommitVidPn->AffectedVidPnSourceId].FrameBuffer.Ptr &&
!m_CurrentModes[pCommitVidPn->AffectedVidPnSourceId].Flags.DoNotMapOrUnmap)
{
Status = UnmapFrameBuffer(m_CurrentModes[pCommitVidPn->AffectedVidPnSourceId].FrameBuffer.Ptr,
m_CurrentModes[pCommitVidPn->AffectedVidPnSourceId].DispInfo.Pitch * m_CurrentModes[pCommitVidPn->AffectedVidPnSourceId].DispInfo.Height);
m_CurrentModes[pCommitVidPn->AffectedVidPnSourceId].FrameBuffer.Ptr = NULL;
m_CurrentModes[pCommitVidPn->AffectedVidPnSourceId].Flags.FrameBufferIsActive = FALSE;
Status = m_pHWDevice->ReleaseFrameBuffer(&m_CurrentModes[pCommitVidPn->AffectedVidPnSourceId]);
if (!NT_SUCCESS(Status))
{
goto CommitVidPnExit;
@ -1523,15 +1517,7 @@ NTSTATUS QxlDod::SetSourceModeAndPath(CONST D3DKMDT_VIDPN_SOURCE_MODE* pSourceMo
pCurrentBddMode->DispInfo.Height = pSourceMode->Format.Graphics.PrimSurfSize.cy;
pCurrentBddMode->DispInfo.Pitch = pSourceMode->Format.Graphics.PrimSurfSize.cx * BPPFromPixelFormat(pCurrentBddMode->DispInfo.ColorFormat) / BITS_PER_BYTE;
if (!pCurrentBddMode->Flags.DoNotMapOrUnmap)
{
// Map the new frame buffer
QXL_ASSERT(pCurrentBddMode->FrameBuffer.Ptr == NULL);
Status = MapFrameBuffer(pCurrentBddMode->DispInfo.PhysicAddress,
pCurrentBddMode->DispInfo.Pitch * pCurrentBddMode->DispInfo.Height,
&(pCurrentBddMode->FrameBuffer.Ptr));
}
Status = m_pHWDevice->AcquireFrameBuffer(pCurrentBddMode);
if (NT_SUCCESS(Status))
{
@ -2933,6 +2919,24 @@ VOID VgaDevice::ResetDevice(VOID)
{
}
NTSTATUS VgaDevice::AcquireFrameBuffer(CURRENT_BDD_MODE* pCurrentBddMode)
{
// Map the new frame buffer
QXL_ASSERT(pCurrentBddMode->FrameBuffer.Ptr == NULL);
NTSTATUS status = MapFrameBuffer(pCurrentBddMode->DispInfo.PhysicAddress,
pCurrentBddMode->DispInfo.Pitch * pCurrentBddMode->DispInfo.Height,
&(pCurrentBddMode->FrameBuffer.Ptr));
return status;
}
NTSTATUS VgaDevice::ReleaseFrameBuffer(CURRENT_BDD_MODE* pCurrentBddMode)
{
NTSTATUS status = UnmapFrameBuffer(pCurrentBddMode->FrameBuffer.Ptr, pCurrentBddMode->DispInfo.Height * pCurrentBddMode->DispInfo.Pitch);
pCurrentBddMode->FrameBuffer.Ptr = NULL;
pCurrentBddMode->Flags.FrameBufferIsActive = FALSE;
return status;
}
NTSTATUS VgaDevice::SetPointerShape(_In_ CONST DXGKARG_SETPOINTERSHAPE* pSetPointerShape)
{
UNREFERENCED_PARAMETER(pSetPointerShape);

4
qxldod/QxlDod.h
View File

@ -225,6 +225,8 @@ public:
virtual BOOLEAN InterruptRoutine(_In_ PDXGKRNL_INTERFACE pDxgkInterface, _In_ ULONG MessageNumber) = 0;
virtual VOID DpcRoutine(PVOID) = 0;
virtual VOID ResetDevice(void) = 0;
virtual NTSTATUS AcquireFrameBuffer(CURRENT_BDD_MODE* pCurrentBddMode) { return STATUS_SUCCESS; }
virtual NTSTATUS ReleaseFrameBuffer(CURRENT_BDD_MODE* pCurrentBddMode) { return STATUS_SUCCESS; }
virtual ULONG GetModeCount(void) = 0;
PVIDEO_MODE_INFORMATION GetModeInfo(UINT idx) {return &m_ModeInfo[idx];}
@ -290,6 +292,8 @@ public:
BOOLEAN InterruptRoutine(_In_ PDXGKRNL_INTERFACE pDxgkInterface, _In_ ULONG MessageNumber);
VOID DpcRoutine(PVOID);
VOID ResetDevice(VOID);
NTSTATUS AcquireFrameBuffer(CURRENT_BDD_MODE* pCurrentBddMode);
NTSTATUS ReleaseFrameBuffer(CURRENT_BDD_MODE* pCurrentBddMode);
NTSTATUS SetPointerShape(_In_ CONST DXGKARG_SETPOINTERSHAPE* pSetPointerShape);
NTSTATUS SetPointerPosition(_In_ CONST DXGKARG_SETPOINTERPOSITION* pSetPointerPosition);
NTSTATUS Escape(_In_ CONST DXGKARG_ESCAPE* pEscap);