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SimpleFbDxe: also flush cache after initial clear

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Zhuowei Zhang
2019-02-23 18:17:33 -08:00
parent 98d6c66bbd
commit 021fa1e4d7
1 changed files with 3 additions and 0 deletions
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Pixel3XL/SimpleFbDxe/SimpleFbDxe.c
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@@ -172,6 +172,7 @@ DisplayBlt
IN UINTN Delta OPTIONAL IN UINTN Delta OPTIONAL
) )
{ {
RETURN_STATUS Status; RETURN_STATUS Status;
EFI_TPL Tpl; EFI_TPL Tpl;
// //
@@ -296,6 +297,8 @@ SimpleFbDxeInitialize
// zhuowei: clear the screen to black // zhuowei: clear the screen to black
// UEFI standard requires this, since text is white - see OvmfPkg/QemuVideoDxe/Gop.c // UEFI standard requires this, since text is white - see OvmfPkg/QemuVideoDxe/Gop.c
ZeroMem((void*)FrameBufferAddress, FrameBufferSize); ZeroMem((void*)FrameBufferAddress, FrameBufferSize);
// hack: clear cache
WriteBackInvalidateDataCacheRange((void*)FrameBufferAddress, FrameBufferSize);
// zhuowei: end // zhuowei: end
/* Register handle */ /* Register handle */