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/* SPDX-License-Identifier: GPL-2.0 */
/*
* mxcc.h: Definitions of the Viking MXCC registers
*
* Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
*/
#ifndef _SPARC_MXCC_H
#define _SPARC_MXCC_H
/* These registers are accessed through ASI 0x2. */
#define MXCC_DATSTREAM 0x1C00000 /* Data stream register */
#define MXCC_SRCSTREAM 0x1C00100 /* Source stream register */
#define MXCC_DESSTREAM 0x1C00200 /* Destination stream register */
#define MXCC_RMCOUNT 0x1C00300 /* Count of references and misses */
#define MXCC_STEST 0x1C00804 /* Internal self-test */
#define MXCC_CREG 0x1C00A04 /* Control register */
#define MXCC_SREG 0x1C00B00 /* Status register */
#define MXCC_RREG 0x1C00C04 /* Reset register */
#define MXCC_EREG 0x1C00E00 /* Error code register */
#define MXCC_PREG 0x1C00F04 /* Address port register */
/* Some MXCC constants. */
#define MXCC_STREAM_SIZE 0x20 /* Size in bytes of one stream r/w */
/* The MXCC Control Register:
*
* ----------------------------------------------------------------------
* | | RRC | RSV |PRE|MCE|PARE|ECE|RSV|
* ----------------------------------------------------------------------
* 31 10 9 8-6 5 4 3 2 1-0
*
* RRC: Controls what you read from MXCC_RMCOUNT reg.
* 0=Misses 1=References
* PRE: Prefetch enable
* MCE: Multiple Command Enable
* PARE: Parity enable
* ECE: External cache enable
*/
#define MXCC_CTL_RRC 0x00000200
#define MXCC_CTL_PRE 0x00000020
#define MXCC_CTL_MCE 0x00000010
#define MXCC_CTL_PARE 0x00000008
#define MXCC_CTL_ECE 0x00000004
/* The MXCC Error Register:
*
* --------------------------------------------------------
* |ME| RSV|CE|PEW|PEE|ASE|EIV| MOPC|ECODE|PRIV|RSV|HPADDR|
* --------------------------------------------------------
* 31 30 29 28 27 26 25 24-15 14-7 6 5-3 2-0
*
* ME: Multiple Errors have occurred
* CE: Cache consistency Error
* PEW: Parity Error during a Write operation
* PEE: Parity Error involving the External cache
* ASE: ASynchronous Error
* EIV: This register is toast
* MOPC: MXCC Operation Code for instance causing error
* ECODE: The Error CODE
* PRIV: A privileged mode error? 0=no 1=yes
* HPADDR: High PhysicalADDRess bits (35-32)
*/
#define MXCC_ERR_ME 0x80000000
#define MXCC_ERR_CE 0x20000000
#define MXCC_ERR_PEW 0x10000000
#define MXCC_ERR_PEE 0x08000000
#define MXCC_ERR_ASE 0x04000000
#define MXCC_ERR_EIV 0x02000000
#define MXCC_ERR_MOPC 0x01FF8000
#define MXCC_ERR_ECODE 0x00007F80
#define MXCC_ERR_PRIV 0x00000040
#define MXCC_ERR_HPADDR 0x0000000f
/* The MXCC Port register:
*
* -----------------------------------------------------
* | | MID | |
* -----------------------------------------------------
* 31 21 20-18 17 0
*
* MID: The moduleID of the cpu your read this from.
*/
#ifndef __ASSEMBLY__
static inline void mxcc_set_stream_src(unsigned long *paddr)
{
unsigned long data0 = paddr[0];
unsigned long data1 = paddr[1];
__asm__ __volatile__ ("or %%g0, %0, %%g2\n\t"
"or %%g0, %1, %%g3\n\t"
"stda %%g2, [%2] %3\n\t" : :
"r" (data0), "r" (data1),
"r" (MXCC_SRCSTREAM),
"i" (ASI_M_MXCC) : "g2", "g3");
}
static inline void mxcc_set_stream_dst(unsigned long *paddr)
{
unsigned long data0 = paddr[0];
unsigned long data1 = paddr[1];
__asm__ __volatile__ ("or %%g0, %0, %%g2\n\t"
"or %%g0, %1, %%g3\n\t"
"stda %%g2, [%2] %3\n\t" : :
"r" (data0), "r" (data1),
"r" (MXCC_DESSTREAM),
"i" (ASI_M_MXCC) : "g2", "g3");
}
static inline unsigned long mxcc_get_creg(void)
{
unsigned long mxcc_control;
__asm__ __volatile__("set 0xffffffff, %%g2\n\t"
"set 0xffffffff, %%g3\n\t"
"stda %%g2, [%1] %2\n\t"
"lda [%3] %2, %0\n\t" :
"=r" (mxcc_control) :
"r" (MXCC_EREG), "i" (ASI_M_MXCC),
"r" (MXCC_CREG) : "g2", "g3");
return mxcc_control;
}
static inline void mxcc_set_creg(unsigned long mxcc_control)
{
__asm__ __volatile__("sta %0, [%1] %2\n\t" : :
"r" (mxcc_control), "r" (MXCC_CREG),
"i" (ASI_M_MXCC));
}
#endif /* !__ASSEMBLY__ */
#endif /* !(_SPARC_MXCC_H) */
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