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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2014-06-22 18:28:05 +1000
committerGerd Hoffmann <kraxel@redhat.com>2014-09-30 13:34:09 +0200
commitace89b8ff21cc3fb20986a334e54e6e6a1ccf729 (patch)
treed320d6eaea2f487c1145d5b03eda317e7a49abc2
parent70a041fe2cc26b7a58c17e26f797fbc2c90c535a (diff)
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vga: Remove some "should be done in BIOS" comments
Not all platforms have a VGA BIOS, powerpc typically relies on using the DISPI interface to initialize the card. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
-rw-r--r--hw/display/vga.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/hw/display/vga.c b/hw/display/vga.c
index c3df0c5..21aa2c6 100644
--- a/hw/display/vga.c
+++ b/hw/display/vga.c
@@ -761,14 +761,13 @@ void vbe_ioport_write_data(void *opaque, uint32_t addr, uint32_t val)
s->vbe_regs[VBE_DISPI_INDEX_ENABLE] |= VBE_DISPI_ENABLED;
vbe_fixup_regs(s);
- /* clear the screen (should be done in BIOS) */
+ /* clear the screen */
if (!(val & VBE_DISPI_NOCLEARMEM)) {
memset(s->vram_ptr, 0,
s->vbe_regs[VBE_DISPI_INDEX_YRES] * s->vbe_line_offset);
}
- /* we initialize the VGA graphic mode (should be done
- in BIOS) */
+ /* we initialize the VGA graphic mode */
/* graphic mode + memory map 1 */
s->gr[VGA_GFX_MISC] = (s->gr[VGA_GFX_MISC] & ~0x0c) | 0x04 |
VGA_GR06_GRAPHICS_MODE;
@@ -801,7 +800,6 @@ void vbe_ioport_write_data(void *opaque, uint32_t addr, uint32_t val)
(shift_control << 5);
s->cr[VGA_CRTC_MAX_SCAN] &= ~0x9f; /* no double scan */
} else {
- /* XXX: the bios should do that */
s->bank_offset = 0;
}
s->dac_8bit = (val & VBE_DISPI_8BIT_DAC) > 0;