cregit-Linux how code gets into the kernel

Release 4.14 arch/mips/include/asm/sn/gda.h

/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Derived from IRIX <sys/SN/gda.h>.
 *
 * Copyright (C) 1992 - 1997, 2000 Silicon Graphics, Inc.
 *
 * gda.h -- Contains the data structure for the global data area,
 *      The GDA contains information communicated between the
 *      PROM, SYMMON, and the kernel.
 */
#ifndef _ASM_SN_GDA_H

#define _ASM_SN_GDA_H

#include <asm/sn/addrs.h>


#define GDA_MAGIC	0x58464552

/*
 * GDA Version History
 *
 * Version #    | Change
 * -------------+-------------------------------------------------------
 *      1       | Initial SN0 version
 *      2       | Prom sets g_partid field to the partition number. 0 IS
 *              | a valid partition #.
 */


#define GDA_VERSION	2	
/* Current GDA version # */


#define G_MAGICOFF	0

#define G_VERSIONOFF	4

#define G_PROMOPOFF	6

#define G_MASTEROFF	8

#define G_VDSOFF	12

#define G_HKDNORMOFF	16

#define G_HKDUTLBOFF	24

#define G_HKDXUTLBOFF	32

#define G_PARTIDOFF	40

#define G_TABLEOFF	128

#ifndef __ASSEMBLY__


typedef struct gda {
	
u32	g_magic;	/* GDA magic number */
	
u16	g_version;	/* Version of this structure */
	
u16	g_masterid;	/* The NASID:CPUNUM of the master cpu */
	
u32	g_promop;	/* Passes requests from the kernel to prom */
	
u32	g_vds;		/* Store the virtual dipswitches here */
	
void	**g_hooked_norm;/* ptr to pda loc for norm hndlr */
	
void	**g_hooked_utlb;/* ptr to pda loc for utlb hndlr */
	
void	**g_hooked_xtlb;/* ptr to pda loc for xtlb hndlr */
	
int	g_partid;	/* partition id */
	
int	g_symmax;	/* Max symbols in name table. */
	
void	*g_dbstab;	/* Address of idbg symbol table */
	
char	*g_nametab;	/* Address of idbg name table */
	
void	*g_ktext_repmask;
				/* Pointer to a mask of nodes with copies
                                 * of the kernel. */
	
char	g_padding[56];	/* pad out to 128 bytes */
	
nasid_t g_nasidtable[MAX_COMPACT_NODES]; /* NASID of each node,
                                                  * indexed by cnodeid.
                                                  */

} gda_t;


#define GDA ((gda_t*) GDA_ADDR(get_nasid()))

#endif /* !__ASSEMBLY__ */
/*
 * Define:      PART_GDA_VERSION
 * Purpose:     Define the minimum version of the GDA required, lower
 *              revisions assume GDA is NOT set up, and read partition
 *              information from the board info.
 */

#define PART_GDA_VERSION	2

/*
 * The following requests can be sent to the PROM during startup.
 */


#define PROMOP_MAGIC		0x0ead0000

#define PROMOP_MAGIC_MASK	0x0fff0000


#define PROMOP_BIST_SHIFT	11

#define PROMOP_BIST_MASK	(0x3 << 11)


#define PROMOP_REG		PI_ERR_STACK_ADDR_A


#define PROMOP_INVALID		(PROMOP_MAGIC | 0x00)

#define PROMOP_HALT		(PROMOP_MAGIC | 0x10)

#define PROMOP_POWERDOWN	(PROMOP_MAGIC | 0x20)

#define PROMOP_RESTART		(PROMOP_MAGIC | 0x30)

#define PROMOP_REBOOT		(PROMOP_MAGIC | 0x40)

#define PROMOP_IMODE		(PROMOP_MAGIC | 0x50)


#define PROMOP_CMD_MASK		0x00f0

#define PROMOP_OPTIONS_MASK	0xfff0


#define PROMOP_SKIP_DIAGS	0x0100		
/* don't bother running diags */

#define PROMOP_SKIP_MEMINIT	0x0200		
/* don't bother initing memory */

#define PROMOP_SKIP_DEVINIT	0x0400		
/* don't bother initing devices */

#define PROMOP_BIST1		0x0800		
/* keep track of which BIST ran */

#define PROMOP_BIST2		0x1000		
/* keep track of which BIST ran */

#endif /* _ASM_SN_GDA_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)23197.06%250.00%
Ralf Bächle72.94%250.00%
Total238100.00%4100.00%
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