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/* SPDX-License-Identifier: GPL-2.0 */
/*
 *	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
		memset16(s, c, count / 2);
}

/* 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

Filemanager

Name Type Size Permission Actions
Kbuild File 320 B 0644
a.out-core.h File 2.41 KB 0644
a.out.h File 574 B 0644
agp.h File 457 B 0644
agp_backend.h File 948 B 0644
asm-offsets.h File 35 B 0644
asm-prototypes.h File 405 B 0644
atomic.h File 9.15 KB 0644
barrier.h File 2.17 KB 0644
bitops.h File 8.83 KB 0644
bug.h File 571 B 0644
bugs.h File 294 B 0644
cache.h File 507 B 0644
cacheflush.h File 2.68 KB 0644
checksum.h File 1.93 KB 0644
cmpxchg.h File 1.67 KB 0644
compiler.h File 498 B 0644
console.h File 1.06 KB 0644
core_apecs.h File 16.91 KB 0644
core_cia.h File 15.43 KB 0644
core_irongate.h File 6.63 KB 0644
core_lca.h File 11.36 KB 0644
core_marvel.h File 9.15 KB 0644
core_mcpcia.h File 11.45 KB 0644
core_polaris.h File 2.92 KB 0644
core_t2.h File 19.13 KB 0644
core_titan.h File 11.2 KB 0644
core_tsunami.h File 8.29 KB 0644
core_wildfire.h File 8.45 KB 0644
delay.h File 264 B 0644
device.h File 129 B 0644
div64.h File 31 B 0644
dma-mapping.h File 276 B 0644
dma.h File 12.37 KB 0644
elf.h File 5.71 KB 0644
emergency-restart.h File 149 B 0644
err_common.h File 3.24 KB 0644
err_ev6.h File 116 B 0644
err_ev7.h File 4.37 KB 0644
extable.h File 1.42 KB 0644
floppy.h File 3.07 KB 0644
fpu.h File 1.78 KB 0644
ftrace.h File 12 B 0644
futex.h File 1.97 KB 0644
gct.h File 1.02 KB 0644
hardirq.h File 223 B 0644
hw_irq.h File 302 B 0644
hwrpb.h File 6.9 KB 0644
io.h File 15.03 KB 0644
io_trivial.h File 3.07 KB 0644
irq.h File 2.31 KB 0644
irq_regs.h File 34 B 0644
irqflags.h File 1.17 KB 0644
jensen.h File 8.39 KB 0644
kdebug.h File 32 B 0644
kmap_types.h File 265 B 0644
linkage.h File 256 B 0644
local.h File 2.59 KB 0644
local64.h File 33 B 0644
machvec.h File 3.68 KB 0644
mc146818rtc.h File 680 B 0644
mce.h File 4.04 KB 0644
mmu.h File 203 B 0644
mmu_context.h File 7.09 KB 0644
mmzone.h File 2.98 KB 0644
module.h File 329 B 0644
page.h File 2.46 KB 0644
pal.h File 5.01 KB 0644
param.h File 284 B 0644
parport.h File 536 B 0644
pci.h File 2.87 KB 0644
percpu.h File 527 B 0644
perf_event.h File 105 B 0644
pgalloc.h File 1.82 KB 0644
pgtable.h File 13.17 KB 0644
processor.h File 2.07 KB 0644
ptrace.h File 754 B 0644
rwsem.h File 4.62 KB 0644
segment.h File 132 B 0644
serial.h File 1.01 KB 0644
sfp-machine.h File 2.86 KB 0644
shmparam.h File 191 B 0644
signal.h File 627 B 0644
smp.h File 1.34 KB 0644
socket.h File 310 B 0644
special_insns.h File 925 B 0644
spinlock.h File 2.85 KB 0644
spinlock_types.h File 413 B 0644
string.h File 2.42 KB 0644
switch_to.h File 406 B 0644
syscall.h File 235 B 0644
termios.h File 2.98 KB 0644
thread_info.h File 3.63 KB 0644
timex.h File 827 B 0644
tlb.h File 473 B 0644
tlbflush.h File 3.37 KB 0644
topology.h File 957 B 0644
types.h File 143 B 0644
uaccess.h File 9.56 KB 0644
ucontext.h File 348 B 0644
unaligned.h File 340 B 0644
unistd.h File 494 B 0644
user.h File 2.14 KB 0644
vga.h File 2 KB 0644
word-at-a-time.h File 1.34 KB 0644
wrperfmon.h File 2.56 KB 0644
xchg.h File 5.74 KB 0644
xor.h File 21.71 KB 0644