/* SPDX-License-Identifier: GPL-2.0 */
/*
* tsunami . h : Module specific definitions for Tsunami V8 Sparcs
*
* Copyright ( C ) 1995 David S . Miller ( davem @ caip . rutgers . edu )
*/
#ifndef _SPARC_TSUNAMI_H
#define _SPARC_TSUNAMI_H
#include <asm /asi.h>
/* The MMU control register on the Tsunami:
*
* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
* | implvers | SW | AV | DV | MV | RSV | PC | ITD | ALC | RSV | PE | RC | IE | DE | RSV | NF | ME |
* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
* 31 24 23 22 21 20 19 - 18 17 16 14 13 - 12 11 10 - 9 8 7 6 - 2 1 0
*
* SW : Enable Software Table Walks 0 = off 1 = on
* AV : Address View bit
* DV : Data View bit
* MV : Memory View bit
* PC : Parity Control
* ITD : ITBR disable
* ALC : Alternate Cacheable
* PE : Parity Enable 0 = off 1 = on
* RC : Refresh Control
* IE : Instruction cache Enable 0 = off 1 = on
* DE : Data cache Enable 0 = off 1 = on
* NF : No Fault , same as all other SRMMUs
* ME : MMU Enable , same as all other SRMMUs
*/
#define TSUNAMI_SW 0 x00800000
#define TSUNAMI_AV 0 x00400000
#define TSUNAMI_DV 0 x00200000
#define TSUNAMI_MV 0 x00100000
#define TSUNAMI_PC 0 x00020000
#define TSUNAMI_ITD 0 x00010000
#define TSUNAMI_ALC 0 x00008000
#define TSUNAMI_PE 0 x00001000
#define TSUNAMI_RCMASK 0 x00000C00
#define TSUNAMI_IENAB 0 x00000200
#define TSUNAMI_DENAB 0 x00000100
#define TSUNAMI_NF 0 x00000002
#define TSUNAMI_ME 0 x00000001
static inline void tsunami_flush_icache(void )
{
__asm__ __volatile__("sta %%g0, [%%g0] %0\n\t"
: /* no outputs */
: "i" (ASI_M_IC_FLCLEAR)
: "memory" );
}
static inline void tsunami_flush_dcache(void )
{
__asm__ __volatile__("sta %%g0, [%%g0] %0\n\t"
: /* no outputs */
: "i" (ASI_M_DC_FLCLEAR)
: "memory" );
}
#endif /* !(_SPARC_TSUNAMI_H) */
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(vorverarbeitet am 2026-09-28)
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