cregit-Linux how code gets into the kernel

Release 4.14 arch/powerpc/include/asm/vga.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_POWERPC_VGA_H_

#define _ASM_POWERPC_VGA_H_

#ifdef __KERNEL__

/*
 *      Access to VGA videoram
 *
 *      (c) 1998 Martin Mares <mj@ucw.cz>
 */


#include <asm/io.h>


#if defined(CONFIG_VGA_CONSOLE) || defined(CONFIG_MDA_CONSOLE)


#define VT_BUF_HAVE_RW
/*
 *  These are only needed for supporting VGA or MDA text mode, which use little
 *  endian byte ordering.
 *  In other cases, we can optimize by using native byte ordering and
 *  <linux/vt_buffer.h> has already done the right job for us.
 */


static inline void scr_writew(u16 val, volatile u16 *addr) { *addr = cpu_to_le16(val); }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)1878.26%360.00%
David Gibson417.39%120.00%
Jon Loeliger14.35%120.00%
Total23100.00%5100.00%


static inline u16 scr_readw(volatile const u16 *addr) { return le16_to_cpu(*addr); }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)1785.00%360.00%
David Gibson210.00%120.00%
Jon Loeliger15.00%120.00%
Total20100.00%5100.00%

#define VT_BUF_HAVE_MEMSETW
static inline void scr_memsetw(u16 *s, u16 v, unsigned int n) { memset16(s, cpu_to_le16(v), n / 2); }

Contributors

PersonTokensPropCommitsCommitProp
Matthew Wilcox32100.00%1100.00%
Total32100.00%1100.00%

#define VT_BUF_HAVE_MEMCPYW #define VT_BUF_HAVE_MEMMOVEW #define scr_memcpyw memcpy #define scr_memmovew memmove #endif /* !CONFIG_VGA_CONSOLE && !CONFIG_MDA_CONSOLE */ #ifdef __powerpc64__ #define VGA_MAP_MEM(x,s) ((unsigned long) ioremap((x), s)) #else #define VGA_MAP_MEM(x,s) (x) #endif #define vga_readb(x) (*(x)) #define vga_writeb(x,y) (*(y) = (x)) #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_VGA_H_ */

Overall Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)9354.39%753.85%
Matthew Wilcox4224.56%17.69%
Jon Loeliger2313.45%17.69%
David Gibson63.51%17.69%
Björn Helgaas52.92%17.69%
Greg Kroah-Hartman10.58%17.69%
Michael Ellerman10.58%17.69%
Total171100.00%13100.00%
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