mbus.h
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- /* $Id: mbus.h,v 1.9 1997/06/24 15:48:12 jj Exp $
- * 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/cypress.h> /* Cypress Chips */
- #include <asm/viking.h> /* Ugh, bug city... */
- enum mbus_module {
- HyperSparc = 0,
- Cypress = 1,
- Cypress_vE = 2,
- Cypress_vD = 3,
- 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
- extern unsigned int hwbug_bitmask;
- /* 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
- extern __inline__ int get_cpuid(void)
- {
- register int retval;
- __asm__ __volatile__("rd %%tbr, %0nt"
- "srl %0, %1, %0nt" :
- "=r" (retval) :
- "i" (TBR_ID_SHIFT));
- return (retval & 3);
- }
- extern __inline__ int get_modid(void)
- {
- return (get_cpuid() | 0x8);
- }
-
- #endif /* !(_SPARC_MBUS_H) */