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authorBjorn Helgaas <bjorn.helgaas@hp.com>2006-06-22 14:47:32 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-22 15:05:58 -0700
commit4f1bcaf094ccc512c23e10104c05a6f8e5b7a9e4 (patch)
tree883c6ece20a28f86eb73cd329bb9d4674b1e5480 /drivers
parentd702ccb342e49f7591df5a87c3857c698183b0fa (diff)
downloadlinux-4f1bcaf094ccc512c23e10104c05a6f8e5b7a9e4.tar.bz2
[PATCH] vgacon: make VGA_MAP_MEM take size, remove extra use
VGA_MAP_MEM translates to ioremap() on some architectures. It makes sense to do this to vga_vram_base, because we're going to access memory between vga_vram_base and vga_vram_end. But it doesn't really make sense to map starting at vga_vram_end, because we aren't going to access memory starting there. On ia64, which always has to be different, ioremapping vga_vram_end gives you something completely incompatible with ioremapped vga_vram_start, so vga_vram_size ends up being nonsense. As a bonus, we often know the size up front, so we can use ioremap() correctly, rather than giving it a zero size. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/video/console/mdacon.c2
-rw-r--r--drivers/video/console/vgacon.c19
-rw-r--r--drivers/video/vga16fb.c2
3 files changed, 11 insertions, 12 deletions
diff --git a/drivers/video/console/mdacon.c b/drivers/video/console/mdacon.c
index 989e4d49e5bb..7f939d066a5a 100644
--- a/drivers/video/console/mdacon.c
+++ b/drivers/video/console/mdacon.c
@@ -313,8 +313,8 @@ static const char __init *mdacon_startup(void)
mda_num_columns = 80;
mda_num_lines = 25;
- mda_vram_base = VGA_MAP_MEM(0xb0000);
mda_vram_len = 0x01000;
+ mda_vram_base = VGA_MAP_MEM(0xb0000, mda_vram_len);
mda_index_port = 0x3b4;
mda_value_port = 0x3b5;
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index d5a04b68c4d4..e64d42e2449e 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -391,7 +391,7 @@ static const char __init *vgacon_startup(void)
static struct resource ega_console_resource =
{ "ega", 0x3B0, 0x3BF };
vga_video_type = VIDEO_TYPE_EGAM;
- vga_vram_end = 0xb8000;
+ vga_vram_size = 0x8000;
display_desc = "EGA+";
request_resource(&ioport_resource,
&ega_console_resource);
@@ -401,7 +401,7 @@ static const char __init *vgacon_startup(void)
static struct resource mda2_console_resource =
{ "mda", 0x3BF, 0x3BF };
vga_video_type = VIDEO_TYPE_MDA;
- vga_vram_end = 0xb2000;
+ vga_vram_size = 0x2000;
display_desc = "*MDA";
request_resource(&ioport_resource,
&mda1_console_resource);
@@ -418,7 +418,7 @@ static const char __init *vgacon_startup(void)
if ((ORIG_VIDEO_EGA_BX & 0xff) != 0x10) {
int i;
- vga_vram_end = 0xc0000;
+ vga_vram_size = 0x8000;
if (!ORIG_VIDEO_ISVGA) {
static struct resource ega_console_resource
@@ -443,7 +443,7 @@ static const char __init *vgacon_startup(void)
* and COE=1 isn't necessarily a good idea)
*/
vga_vram_base = 0xa0000;
- vga_vram_end = 0xb0000;
+ vga_vram_size = 0x10000;
outb_p(6, VGA_GFX_I);
outb_p(6, VGA_GFX_D);
#endif
@@ -475,7 +475,7 @@ static const char __init *vgacon_startup(void)
static struct resource cga_console_resource =
{ "cga", 0x3D4, 0x3D5 };
vga_video_type = VIDEO_TYPE_CGA;
- vga_vram_end = 0xba000;
+ vga_vram_size = 0x2000;
display_desc = "*CGA";
request_resource(&ioport_resource,
&cga_console_resource);
@@ -483,9 +483,8 @@ static const char __init *vgacon_startup(void)
}
}
- vga_vram_base = VGA_MAP_MEM(vga_vram_base);
- vga_vram_end = VGA_MAP_MEM(vga_vram_end);
- vga_vram_size = vga_vram_end - vga_vram_base;
+ vga_vram_base = VGA_MAP_MEM(vga_vram_base, vga_vram_size);
+ vga_vram_end = vga_vram_base + vga_vram_size;
/*
* Find out if there is a graphics card present.
@@ -1020,14 +1019,14 @@ static int vgacon_do_font_op(struct vgastate *state,char *arg,int set,int ch512)
char *charmap;
if (vga_video_type != VIDEO_TYPE_EGAM) {
- charmap = (char *) VGA_MAP_MEM(colourmap);
+ charmap = (char *) VGA_MAP_MEM(colourmap, 0);
beg = 0x0e;
#ifdef VGA_CAN_DO_64KB
if (vga_video_type == VIDEO_TYPE_VGAC)
beg = 0x06;
#endif
} else {
- charmap = (char *) VGA_MAP_MEM(blackwmap);
+ charmap = (char *) VGA_MAP_MEM(blackwmap, 0);
beg = 0x0a;
}
diff --git a/drivers/video/vga16fb.c b/drivers/video/vga16fb.c
index f3f16fd9f231..4fd2a272e03d 100644
--- a/drivers/video/vga16fb.c
+++ b/drivers/video/vga16fb.c
@@ -1351,7 +1351,7 @@ static int __init vga16fb_probe(struct device *device)
}
/* XXX share VGA_FB_PHYS and I/O region with vgacon and others */
- info->screen_base = (void __iomem *)VGA_MAP_MEM(VGA_FB_PHYS);
+ info->screen_base = (void __iomem *)VGA_MAP_MEM(VGA_FB_PHYS, 0);
if (!info->screen_base) {
printk(KERN_ERR "vga16fb: unable to map device\n");