Release 4.14 arch/sparc/include/asm/mbus.h
/* SPDX-License-Identifier: GPL-2.0 */
/*
* mbus.h: Various defines for MBUS modules.
*
* Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
*/
#ifndef _SPARC_MBUS_H
#define _SPARC_MBUS_H
#include <asm/ross.h> /* HyperSparc stuff */
#include <asm/viking.h> /* Ugh, bug city... */
enum mbus_module {
HyperSparc = 0,
Swift_ok = 4,
Swift_bad_c = 5,
Swift_lots_o_bugs = 6,
Tsunami = 7,
Viking_12 = 8,
Viking_2x = 9,
Viking_30 = 10,
Viking_35 = 11,
Viking_new = 12,
TurboSparc = 13,
SRMMU_INVAL_MOD = 14,
};
extern enum mbus_module srmmu_modtype;
extern unsigned int viking_rev, swift_rev, cypress_rev;
/* HW Mbus module bugs we have to deal with */
#define HWBUG_COPYBACK_BROKEN 0x00000001
#define HWBUG_ASIFLUSH_BROKEN 0x00000002
#define HWBUG_VACFLUSH_BITROT 0x00000004
#define HWBUG_KERN_ACCBROKEN 0x00000008
#define HWBUG_KERN_CBITBROKEN 0x00000010
#define HWBUG_MODIFIED_BITROT 0x00000020
#define HWBUG_PC_BADFAULT_ADDR 0x00000040
#define HWBUG_SUPERSCALAR_BAD 0x00000080
#define HWBUG_PACINIT_BITROT 0x00000100
/* First the module type values. To find out which you have, just load
* the mmu control register from ASI_M_MMUREG alternate address space and
* shift the value right 28 bits.
*/
/* IMPL field means the company which produced the chip. */
#define MBUS_VIKING 0x4
/* bleech, Texas Instruments Module */
#define MBUS_LSI 0x3
/* LSI Logics */
#define MBUS_ROSS 0x1
/* Ross is nice */
#define MBUS_FMI 0x0
/* Fujitsu Microelectronics/Swift */
/* Ross Module versions */
#define ROSS_604_REV_CDE 0x0
/* revisions c, d, and e */
#define ROSS_604_REV_F 0x1
/* revision f */
#define ROSS_605 0xf
/* revision a, a.1, and a.2 */
#define ROSS_605_REV_B 0xe
/* revision b */
/* TI Viking Module versions */
#define VIKING_REV_12 0x1
/* Version 1.2 or SPARCclassic's CPU */
#define VIKING_REV_2 0x2
/* Version 2.1, 2.2, 2.3, and 2.4 */
#define VIKING_REV_30 0x3
/* Version 3.0 */
#define VIKING_REV_35 0x4
/* Version 3.5 */
/* LSI Logics. */
#define LSI_L64815 0x0
/* Fujitsu */
#define FMI_AURORA 0x4
/* MB8690x, a Swift module... */
#define FMI_TURBO 0x5
/* MB86907, a TurboSparc module... */
/* For multiprocessor support we need to be able to obtain the CPU id and
* the MBUS Module id.
*/
/* The CPU ID is encoded in the trap base register, 20 bits to the left of
* bit zero, with 2 bits being significant.
*/
#define TBR_ID_SHIFT 20
static inline int get_cpuid(void)
{
register int retval;
__asm__ __volatile__("rd %%tbr, %0\n\t"
"srl %0, %1, %0\n\t" :
"=r" (retval) :
"i" (TBR_ID_SHIFT));
return (retval & 3);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 21 | 91.30% | 1 | 50.00% |
| Adrian Bunk | 2 | 8.70% | 1 | 50.00% |
| Total | 23 | 100.00% | 2 | 100.00% |
static inline int get_modid(void)
{
return (get_cpuid() | 0x8);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 15 | 88.24% | 1 | 50.00% |
| Adrian Bunk | 2 | 11.76% | 1 | 50.00% |
| Total | 17 | 100.00% | 2 | 100.00% |
#endif /* !(_SPARC_MBUS_H) */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 242 | 97.58% | 4 | 57.14% |
| Adrian Bunk | 5 | 2.02% | 2 | 28.57% |
| Greg Kroah-Hartman | 1 | 0.40% | 1 | 14.29% |
| Total | 248 | 100.00% | 7 | 100.00% |
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