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