[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>
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4f1bcaf094
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@ -313,8 +313,8 @@ static const char __init *mdacon_startup(void)
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mda_num_columns = 80;
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mda_num_lines = 25;
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mda_vram_base = VGA_MAP_MEM(0xb0000);
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mda_vram_len = 0x01000;
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mda_vram_base = VGA_MAP_MEM(0xb0000, mda_vram_len);
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mda_index_port = 0x3b4;
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mda_value_port = 0x3b5;
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@ -391,7 +391,7 @@ static const char __init *vgacon_startup(void)
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static struct resource ega_console_resource =
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{ "ega", 0x3B0, 0x3BF };
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vga_video_type = VIDEO_TYPE_EGAM;
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vga_vram_end = 0xb8000;
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vga_vram_size = 0x8000;
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display_desc = "EGA+";
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request_resource(&ioport_resource,
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&ega_console_resource);
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@ -401,7 +401,7 @@ static const char __init *vgacon_startup(void)
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static struct resource mda2_console_resource =
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{ "mda", 0x3BF, 0x3BF };
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vga_video_type = VIDEO_TYPE_MDA;
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vga_vram_end = 0xb2000;
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vga_vram_size = 0x2000;
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display_desc = "*MDA";
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request_resource(&ioport_resource,
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&mda1_console_resource);
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@ -418,7 +418,7 @@ static const char __init *vgacon_startup(void)
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if ((ORIG_VIDEO_EGA_BX & 0xff) != 0x10) {
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int i;
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vga_vram_end = 0xc0000;
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vga_vram_size = 0x8000;
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if (!ORIG_VIDEO_ISVGA) {
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static struct resource ega_console_resource
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@ -443,7 +443,7 @@ static const char __init *vgacon_startup(void)
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* and COE=1 isn't necessarily a good idea)
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*/
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vga_vram_base = 0xa0000;
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vga_vram_end = 0xb0000;
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vga_vram_size = 0x10000;
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outb_p(6, VGA_GFX_I);
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outb_p(6, VGA_GFX_D);
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#endif
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@ -475,7 +475,7 @@ static const char __init *vgacon_startup(void)
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static struct resource cga_console_resource =
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{ "cga", 0x3D4, 0x3D5 };
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vga_video_type = VIDEO_TYPE_CGA;
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vga_vram_end = 0xba000;
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vga_vram_size = 0x2000;
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display_desc = "*CGA";
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request_resource(&ioport_resource,
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&cga_console_resource);
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@ -483,9 +483,8 @@ static const char __init *vgacon_startup(void)
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}
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}
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vga_vram_base = VGA_MAP_MEM(vga_vram_base);
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vga_vram_end = VGA_MAP_MEM(vga_vram_end);
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vga_vram_size = vga_vram_end - vga_vram_base;
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vga_vram_base = VGA_MAP_MEM(vga_vram_base, vga_vram_size);
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vga_vram_end = vga_vram_base + vga_vram_size;
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/*
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* Find out if there is a graphics card present.
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@ -1020,14 +1019,14 @@ static int vgacon_do_font_op(struct vgastate *state,char *arg,int set,int ch512)
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char *charmap;
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if (vga_video_type != VIDEO_TYPE_EGAM) {
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charmap = (char *) VGA_MAP_MEM(colourmap);
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charmap = (char *) VGA_MAP_MEM(colourmap, 0);
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beg = 0x0e;
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#ifdef VGA_CAN_DO_64KB
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if (vga_video_type == VIDEO_TYPE_VGAC)
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beg = 0x06;
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#endif
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} else {
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charmap = (char *) VGA_MAP_MEM(blackwmap);
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charmap = (char *) VGA_MAP_MEM(blackwmap, 0);
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beg = 0x0a;
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}
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@ -1351,7 +1351,7 @@ static int __init vga16fb_probe(struct device *device)
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}
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/* XXX share VGA_FB_PHYS and I/O region with vgacon and others */
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info->screen_base = (void __iomem *)VGA_MAP_MEM(VGA_FB_PHYS);
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info->screen_base = (void __iomem *)VGA_MAP_MEM(VGA_FB_PHYS, 0);
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if (!info->screen_base) {
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printk(KERN_ERR "vga16fb: unable to map device\n");
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@ -46,6 +46,6 @@ extern void scr_memcpyw(u16 *d, const u16 *s, unsigned int count);
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#define vga_readb(a) readb((u8 __iomem *)(a))
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#define vga_writeb(v,a) writeb(v, (u8 __iomem *)(a))
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#define VGA_MAP_MEM(x) ((unsigned long) ioremap(x, 0))
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#define VGA_MAP_MEM(x,s) ((unsigned long) ioremap(x, s))
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#endif
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@ -4,7 +4,7 @@
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#include <asm/hardware.h>
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#include <asm/io.h>
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#define VGA_MAP_MEM(x) (PCIMEM_BASE + (x))
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#define VGA_MAP_MEM(x,s) (PCIMEM_BASE + (x))
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#define vga_readb(x) (*((volatile unsigned char *)x))
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#define vga_writeb(x,y) (*((volatile unsigned char *)y) = (x))
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@ -12,7 +12,7 @@
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* access the videoram directly without any black magic.
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*/
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#define VGA_MAP_MEM(x) (unsigned long)phys_to_virt(x)
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#define VGA_MAP_MEM(x,s) (unsigned long)phys_to_virt(x)
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#define vga_readb(x) (*(x))
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#define vga_writeb(x,y) (*(y) = (x))
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@ -17,7 +17,7 @@
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extern unsigned long vga_console_iobase;
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extern unsigned long vga_console_membase;
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#define VGA_MAP_MEM(x) ((unsigned long) ioremap_nocache(vga_console_membase + (x), 0))
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#define VGA_MAP_MEM(x,s) ((unsigned long) ioremap_nocache(vga_console_membase + (x), s))
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#define vga_readb(x) (*(x))
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#define vga_writeb(x,y) (*(y) = (x))
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@ -14,7 +14,7 @@
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* access the videoram directly without any black magic.
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*/
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#define VGA_MAP_MEM(x) (unsigned long)phys_to_virt(x)
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#define VGA_MAP_MEM(x,s) (unsigned long)phys_to_virt(x)
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#define vga_readb(x) (*(x))
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#define vga_writeb(x,y) (*(y) = (x))
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@ -13,7 +13,7 @@
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* access the videoram directly without any black magic.
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*/
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#define VGA_MAP_MEM(x) (0xb0000000L + (unsigned long)(x))
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#define VGA_MAP_MEM(x,s) (0xb0000000L + (unsigned long)(x))
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#define vga_readb(x) (*(x))
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#define vga_writeb(x,y) (*(y) = (x))
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@ -41,9 +41,9 @@ static inline u16 scr_readw(volatile const u16 *addr)
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extern unsigned long vgacon_remap_base;
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#ifdef __powerpc64__
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#define VGA_MAP_MEM(x) ((unsigned long) ioremap((x), 0))
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#define VGA_MAP_MEM(x,s) ((unsigned long) ioremap((x), s))
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#else
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#define VGA_MAP_MEM(x) (x + vgacon_remap_base)
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#define VGA_MAP_MEM(x,s) (x + vgacon_remap_base)
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#endif
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#define vga_readb(x) (*(x))
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@ -28,6 +28,6 @@ static inline u16 scr_readw(const u16 *addr)
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return *addr;
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}
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#define VGA_MAP_MEM(x) (x)
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#define VGA_MAP_MEM(x,s) (x)
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#endif
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@ -12,7 +12,7 @@
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* access the videoram directly without any black magic.
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*/
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#define VGA_MAP_MEM(x) (unsigned long)phys_to_virt(x)
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#define VGA_MAP_MEM(x,s) (unsigned long)phys_to_virt(x)
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#define vga_readb(x) (*(x))
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#define vga_writeb(x,y) (*(y) = (x))
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@ -11,7 +11,7 @@
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#ifndef _XTENSA_VGA_H
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#define _XTENSA_VGA_H
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#define VGA_MAP_MEM(x) (unsigned long)phys_to_virt(x)
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#define VGA_MAP_MEM(x,s) (unsigned long)phys_to_virt(x)
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#define vga_readb(x) (*(x))
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#define vga_writeb(x,y) (*(y) = (x))
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