diff options
author | H. Peter Anvin <hpa@zytor.com> | 2008-09-04 08:08:42 -0700 |
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committer | H. Peter Anvin <hpa@zytor.com> | 2008-09-04 08:08:42 -0700 |
commit | 7203781c98ad9147564d327de6f6513ad8fc0f4e (patch) | |
tree | 5c29a2a04a626bf08a0d56fd8a0068b3c92ad284 /arch/alpha/include/asm/vga.h | |
parent | 671eef85a3e885dff4ce210d8774ad50a91d5967 (diff) | |
parent | af2e1f276ff08f17192411ea3b71c13a758dfe12 (diff) |
Merge branch 'x86/cpu' into x86/core
Conflicts:
arch/x86/kernel/cpu/feature_names.c
include/asm-x86/cpufeature.h
Diffstat (limited to 'arch/alpha/include/asm/vga.h')
-rw-r--r-- | arch/alpha/include/asm/vga.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/arch/alpha/include/asm/vga.h b/arch/alpha/include/asm/vga.h new file mode 100644 index 00000000000..c00106bac52 --- /dev/null +++ b/arch/alpha/include/asm/vga.h @@ -0,0 +1,82 @@ +/* + * Access to VGA videoram + * + * (c) 1998 Martin Mares <mj@ucw.cz> + */ + +#ifndef _LINUX_ASM_VGA_H_ +#define _LINUX_ASM_VGA_H_ + +#include <asm/io.h> + +#define VT_BUF_HAVE_RW +#define VT_BUF_HAVE_MEMSETW +#define VT_BUF_HAVE_MEMCPYW + +static inline void scr_writew(u16 val, volatile u16 *addr) +{ + if (__is_ioaddr(addr)) + __raw_writew(val, (volatile u16 __iomem *) addr); + else + *addr = val; +} + +static inline u16 scr_readw(volatile const u16 *addr) +{ + if (__is_ioaddr(addr)) + return __raw_readw((volatile const u16 __iomem *) addr); + else + return *addr; +} + +static inline void scr_memsetw(u16 *s, u16 c, unsigned int count) +{ + if (__is_ioaddr(s)) + memsetw_io((u16 __iomem *) s, c, count); + else + memsetw(s, c, count); +} + +/* Do not trust that the usage will be correct; analyze the arguments. */ +extern void scr_memcpyw(u16 *d, const u16 *s, unsigned int count); + +/* ??? These are currently only used for downloading character sets. As + such, they don't need memory barriers. Is this all they are intended + to be used for? */ +#define vga_readb(a) readb((u8 __iomem *)(a)) +#define vga_writeb(v,a) writeb(v, (u8 __iomem *)(a)) + +#ifdef CONFIG_VGA_HOSE +#include <linux/ioport.h> +#include <linux/pci.h> + +extern struct pci_controller *pci_vga_hose; + +# define __is_port_vga(a) \ + (((a) >= 0x3b0) && ((a) < 0x3e0) && \ + ((a) != 0x3b3) && ((a) != 0x3d3)) + +# define __is_mem_vga(a) \ + (((a) >= 0xa0000) && ((a) <= 0xc0000)) + +# define FIXUP_IOADDR_VGA(a) do { \ + if (pci_vga_hose && __is_port_vga(a)) \ + (a) += pci_vga_hose->io_space->start; \ + } while(0) + +# define FIXUP_MEMADDR_VGA(a) do { \ + if (pci_vga_hose && __is_mem_vga(a)) \ + (a) += pci_vga_hose->mem_space->start; \ + } while(0) + +#else /* CONFIG_VGA_HOSE */ +# define pci_vga_hose 0 +# define __is_port_vga(a) 0 +# define __is_mem_vga(a) 0 +# define FIXUP_IOADDR_VGA(a) +# define FIXUP_MEMADDR_VGA(a) +#endif /* CONFIG_VGA_HOSE */ + +#define VGA_MAP_MEM(x,s) ((unsigned long) ioremap(x, s)) + +#endif |