From ca5eb0c5fb8823a480bd7caecb456407d8098488 Mon Sep 17 00:00:00 2001 From: Bin Meng Date: Wed, 11 Apr 2018 22:02:15 -0700 Subject: [PATCH] bios: vesa: Guard setting vesa mode with CONFIG_FRAMEBUFFER_SET_VESA_MODE If CONFIG_FRAMEBUFFER_SET_VESA_MODE is not set, don't switch graphics card to VESA mode. This applies to both native mode and emulator mode of running the VGA BIOS. Signed-off-by: Bin Meng Reviewed-by: Simon Glass --- arch/x86/lib/bios.c | 4 ++++ drivers/bios_emulator/atibios.c | 4 ++++ 2 files changed, 8 insertions(+) diff --git a/arch/x86/lib/bios.c b/arch/x86/lib/bios.c index 66d7629a6d..f9092fdc65 100644 --- a/arch/x86/lib/bios.c +++ b/arch/x86/lib/bios.c @@ -185,6 +185,7 @@ static void setup_realmode_idt(void) write_idt_stub((void *)0xffe6e, 0x1a); } +#ifdef CONFIG_FRAMEBUFFER_SET_VESA_MODE static u8 vbe_get_mode_info(struct vbe_mode_info *mi) { u16 buffer_seg; @@ -241,6 +242,7 @@ static void vbe_set_graphics(int vesa_mode, struct vbe_mode_info *mode_info) mode_info->video_mode &= 0x3ff; vbe_set_mode(mode_info); } +#endif /* CONFIG_FRAMEBUFFER_SET_VESA_MODE */ void bios_run_on_x86(struct udevice *dev, unsigned long addr, int vesa_mode, struct vbe_mode_info *mode_info) @@ -273,8 +275,10 @@ void bios_run_on_x86(struct udevice *dev, unsigned long addr, int vesa_mode, 0x0); debug("done\n"); +#ifdef CONFIG_FRAMEBUFFER_SET_VESA_MODE if (vesa_mode != -1) vbe_set_graphics(vesa_mode, mode_info); +#endif } asmlinkage int interrupt_handler(u32 intnumber, u32 gsfs, u32 dses, diff --git a/drivers/bios_emulator/atibios.c b/drivers/bios_emulator/atibios.c index 2d5b5dc562..4a16fc7e1c 100644 --- a/drivers/bios_emulator/atibios.c +++ b/drivers/bios_emulator/atibios.c @@ -65,6 +65,7 @@ static u32 saveBaseAddress20; /* Addres im memory of VBE region */ const int vbe_offset = 0x2000; +#ifdef CONFIG_FRAMEBUFFER_SET_VESA_MODE static const void *bios_ptr(const void *buf, BE_VGAInfo *vga_info, u32 x86_dword_ptr) { @@ -215,6 +216,7 @@ static int atibios_set_vesa_mode(RMREGS *regs, int vesa_mode, return 0; } +#endif /* CONFIG_FRAMEBUFFER_SET_VESA_MODE */ /**************************************************************************** PARAMETERS: @@ -263,11 +265,13 @@ static void PCI_doBIOSPOST(pci_dev_t pcidev, BE_VGAInfo *vga_info, /*Cleanup and exit*/ BE_getVGA(vga_info); +#ifdef CONFIG_FRAMEBUFFER_SET_VESA_MODE /* Useful for debugging */ if (0) atibios_debug_mode(vga_info, ®s, vesa_mode, mode_info); if (vesa_mode != -1) atibios_set_vesa_mode(®s, vesa_mode, mode_info); +#endif } /**************************************************************************** -- 2.25.1