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LcdGraphicsOutputDxe: Update FrameBufferSize as per UEFI spec section 11.9 

The shift by 1 on the left was expected. It eases the access to CSSELR and set/way operations
where the cache level field is at the BIT1 position.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Olivier Martin <olivier.martin@arm.com>



git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14705 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Olivier Martin 2013-09-23 09:42:53 +00:00 committed by oliviermartin
parent 433a49a094
commit 1d7b547e69
1 changed files with 10 additions and 2 deletions
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12
ArmPlatformPkg/Drivers/LcdGraphicsOutputDxe/LcdGraphicsOutputDxe.c
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@ -133,7 +133,6 @@ InitializeDisplay (
// Setup all the relevant mode information
Instance->Gop.Mode->SizeOfInfo = sizeof(EFI_GRAPHICS_OUTPUT_MODE_INFORMATION);
Instance->Gop.Mode->FrameBufferBase = VramBaseAddress;
Instance->Gop.Mode->FrameBufferSize = VramSize;
// Set the flag before changing the mode, to avoid infinite loops
mDisplayInitialized = TRUE;
@ -297,7 +296,8 @@ LcdGraphicsSetMode (
{
EFI_STATUS Status = EFI_SUCCESS;
EFI_GRAPHICS_OUTPUT_BLT_PIXEL FillColour;
LCD_INSTANCE* Instance;
LCD_INSTANCE* Instance;
LCD_BPP Bpp;
Instance = LCD_INSTANCE_FROM_GOP_THIS (This);
@ -326,6 +326,14 @@ LcdGraphicsSetMode (
// Update the UEFI mode information
This->Mode->Mode = ModeNumber;
LcdPlatformQueryMode (ModeNumber,&Instance->ModeInfo);
Status = LcdPlatformGetBpp(ModeNumber, &Bpp);
if (EFI_ERROR(Status)) {
DEBUG ((DEBUG_ERROR, "LcdGraphicsSetMode: ERROR - Couldn't get bytes per pixel, status: %r\n", Status));
goto EXIT;
}
This->Mode->FrameBufferSize = Instance->ModeInfo.VerticalResolution
* Instance->ModeInfo.PixelsPerScanLine
* GetBytesPerPixel(Bpp);
// Set the hardware to the new mode
Status = LcdSetMode (ModeNumber);