From: Gerd Hoffmann <kraxel@redhat.com>
To: qemu-devel@nongnu.org
Cc: Gerd Hoffmann <kraxel@redhat.com>
Subject: [Qemu-devel] [PATCH 7/8] vga: Remove some "should be done in BIOS" comments
Date: Mon, 22 Sep 2014 16:44:55 +0200 [thread overview]
Message-ID: <1411397096-31566-8-git-send-email-kraxel@redhat.com> (raw)
In-Reply-To: <1411397096-31566-1-git-send-email-kraxel@redhat.com>
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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>
---
hw/display/vga.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/hw/display/vga.c b/hw/display/vga.c
index b0efae4..9ad8ce4 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;
--
1.8.3.1
next prev parent reply other threads:[~2014-09-22 14:45 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-22 14:44 [Qemu-devel] [PATCH 0/8] vga cleanup series Gerd Hoffmann
2014-09-22 14:44 ` [Qemu-devel] [PATCH 1/8] vga: Start cutting out non-32bpp conversion support Gerd Hoffmann
2014-09-26 4:10 ` David Gibson
2014-09-22 14:44 ` [Qemu-devel] [PATCH 2/8] vga: Remove remainder of old conversion cruft Gerd Hoffmann
2014-09-26 4:10 ` David Gibson
2014-09-22 14:44 ` [Qemu-devel] [PATCH 3/8] vga: Separate LE and BE conversion functions Gerd Hoffmann
2014-09-26 4:16 ` David Gibson
2014-09-26 6:25 ` Gerd Hoffmann
2014-09-22 14:44 ` [Qemu-devel] [PATCH 4/8] vga: Remove rgb_to_pixel indirection Gerd Hoffmann
2014-09-26 4:18 ` David Gibson
2014-09-22 14:44 ` [Qemu-devel] [PATCH 5/8] vga: Simplify vga_draw_blank() a bit Gerd Hoffmann
2014-09-26 4:20 ` David Gibson
2014-09-22 14:44 ` [Qemu-devel] [PATCH 6/8] cirrus: Remove non-32bpp cursor drawing Gerd Hoffmann
2014-09-26 4:21 ` David Gibson
2014-09-22 14:44 ` Gerd Hoffmann [this message]
2014-09-26 4:22 ` [Qemu-devel] [PATCH 7/8] vga: Remove some "should be done in BIOS" comments David Gibson
2014-09-22 14:44 ` [Qemu-devel] [PATCH 8/8] vga: Rename vga_template.h to vga-helpers.h Gerd Hoffmann
2014-09-26 4:22 ` David Gibson
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