cregit-Linux how code gets into the kernel

Release 4.14 arch/mips/include/asm/sn/sn0/hubni.h

/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Derived from IRIX <sys/SN/SN0/hubni.h>, Revision 1.27.
 *
 * Copyright (C) 1992-1997, 1999 Silicon Graphics, Inc.
 * Copyright (C) 1999 by Ralf Baechle
 */
#ifndef _ASM_SGI_SN0_HUBNI_H

#define _ASM_SGI_SN0_HUBNI_H

#ifndef __ASSEMBLY__
#include <linux/types.h>
#endif

/*
 * Hub Network Interface registers
 *
 * All registers in this file are subject to change until Hub chip tapeout.
 */


#define NI_BASE			0x600000

#define NI_BASE_TABLES		0x630000


#define NI_STATUS_REV_ID	0x600000 
/* Hub network status, rev, and ID */

#define NI_PORT_RESET		0x600008 
/* Reset the network interface      */

#define NI_PROTECTION		0x600010 
/* NI register access permissions  */

#define NI_GLOBAL_PARMS		0x600018 
/* LLP parameters                   */

#define NI_SCRATCH_REG0		0x600100 
/* Scratch register 0 (64 bits)    */

#define NI_SCRATCH_REG1		0x600108 
/* Scratch register 1 (64 bits)    */

#define NI_DIAG_PARMS		0x600110 
/* Parameters for diags     */


#define NI_VECTOR_PARMS		0x600200 
/* Vector PIO routing parameters   */

#define NI_VECTOR		0x600208 
/* Vector PIO route                 */

#define NI_VECTOR_DATA		0x600210 
/* Vector PIO data                  */

#define NI_VECTOR_STATUS	0x600300 
/* Vector PIO return status         */

#define NI_RETURN_VECTOR	0x600308 
/* Vector PIO return vector         */

#define NI_VECTOR_READ_DATA	0x600310 
/* Vector PIO read data     */

#define NI_VECTOR_CLEAR		0x600380 
/* Vector PIO read & clear status  */


#define NI_IO_PROTECT		0x600400 
/* PIO protection bits              */

#define NI_IO_PROT_OVRRD	0x600408 
/* PIO protection bit override      */


#define NI_AGE_CPU0_MEMORY	0x600500 
/* CPU 0 memory age control         */

#define NI_AGE_CPU0_PIO		0x600508 
/* CPU 0 PIO age control            */

#define NI_AGE_CPU1_MEMORY	0x600510 
/* CPU 1 memory age control         */

#define NI_AGE_CPU1_PIO		0x600518 
/* CPU 1 PIO age control            */

#define NI_AGE_GBR_MEMORY	0x600520 
/* GBR memory age control           */

#define NI_AGE_GBR_PIO		0x600528 
/* GBR PIO age control              */

#define NI_AGE_IO_MEMORY	0x600530 
/* IO memory age control            */

#define NI_AGE_IO_PIO		0x600538 
/* IO PIO age control               */

#define NI_AGE_REG_MIN		NI_AGE_CPU0_MEMORY

#define NI_AGE_REG_MAX		NI_AGE_IO_PIO


#define NI_PORT_PARMS		0x608000 
/* LLP Parameters                   */

#define NI_PORT_ERROR		0x608008 
/* LLP Errors                       */

#define NI_PORT_ERROR_CLEAR	0x608088 
/* Clear the error bits     */


#define NI_META_TABLE0		0x638000 
/* First meta routing table entry  */

#define NI_META_TABLE(_x)	(NI_META_TABLE0 + (8 * (_x)))

#define NI_META_ENTRIES		32


#define NI_LOCAL_TABLE0		0x638100 
/* First local routing table entry */

#define NI_LOCAL_TABLE(_x)	(NI_LOCAL_TABLE0 + (8 * (_x)))

#define NI_LOCAL_ENTRIES	16

/*
 * NI_STATUS_REV_ID mask and shift definitions
 * Have to use UINT64_CAST instead of 'L' suffix, for assembler.
 */


#define NSRI_8BITMODE_SHFT	30

#define NSRI_8BITMODE_MASK	(UINT64_CAST 0x1 << 30)

#define NSRI_LINKUP_SHFT	29

#define NSRI_LINKUP_MASK	(UINT64_CAST 0x1 << 29)

#define NSRI_DOWNREASON_SHFT	28		
/* 0=failed, 1=never came   */

#define NSRI_DOWNREASON_MASK	(UINT64_CAST 0x1 << 28) 
/*    out of reset. */

#define NSRI_MORENODES_SHFT	18

#define NSRI_MORENODES_MASK	(UINT64_CAST 1 << 18)	
/* Max. # of nodes  */

#define	 MORE_MEMORY		0

#define	 MORE_NODES		1

#define NSRI_REGIONSIZE_SHFT	17

#define NSRI_REGIONSIZE_MASK	(UINT64_CAST 1 << 17)	
/* Granularity      */

#define	 REGIONSIZE_FINE	1

#define	 REGIONSIZE_COARSE	0

#define NSRI_NODEID_SHFT	8

#define NSRI_NODEID_MASK	(UINT64_CAST 0x1ff << 8)
/* Node (Hub) ID    */

#define NSRI_REV_SHFT		4

#define NSRI_REV_MASK		(UINT64_CAST 0xf << 4)	
/* Chip Revision    */

#define NSRI_CHIPID_SHFT	0

#define NSRI_CHIPID_MASK	(UINT64_CAST 0xf)	
/* Chip type ID     */

/*
 * In fine mode, each node is a region.  In coarse mode, there are
 * eight nodes per region.
 */

#define NASID_TO_FINEREG_SHFT	0

#define NASID_TO_COARSEREG_SHFT 3

/* NI_PORT_RESET mask definitions */


#define NPR_PORTRESET		(UINT64_CAST 1 << 7)	
/* Send warm reset  */

#define NPR_LINKRESET		(UINT64_CAST 1 << 1)	
/* Send link reset  */

#define NPR_LOCALRESET		(UINT64_CAST 1)		
/* Reset entire hub */

/* NI_PROTECTION mask and shift definitions */


#define NPROT_RESETOK		(UINT64_CAST 1)

/* NI_GLOBAL_PARMS mask and shift definitions */


#define NGP_MAXRETRY_SHFT	48		
/* Maximum retries          */

#define NGP_MAXRETRY_MASK	(UINT64_CAST 0x3ff << 48)

#define NGP_TAILTOWRAP_SHFT	32		
/* Tail timeout wrap        */

#define NGP_TAILTOWRAP_MASK	(UINT64_CAST 0xffff << 32)


#define NGP_CREDITTOVAL_SHFT	16		
/* Tail timeout wrap        */

#define NGP_CREDITTOVAL_MASK	(UINT64_CAST 0xf << 16)

#define NGP_TAILTOVAL_SHFT	4		
/* Tail timeout value       */

#define NGP_TAILTOVAL_MASK	(UINT64_CAST 0xf << 4)

/* NI_DIAG_PARMS mask and shift definitions */


#define NDP_PORTTORESET		(UINT64_CAST 1 << 18)	
/* Port tmout reset */

#define NDP_LLP8BITMODE		(UINT64_CAST 1 << 12)	
/* LLP 8-bit mode   */

#define NDP_PORTDISABLE		(UINT64_CAST 1 <<  6)	
/* Port disable     */

#define NDP_SENDERROR		(UINT64_CAST 1)		
/* Send data error  */

/*
 * NI_VECTOR_PARMS mask and shift definitions.
 * TYPE may be any of the first four PIOTYPEs defined under NI_VECTOR_STATUS.
 */


#define NVP_PIOID_SHFT		40

#define NVP_PIOID_MASK		(UINT64_CAST 0x3ff << 40)

#define NVP_WRITEID_SHFT	32

#define NVP_WRITEID_MASK	(UINT64_CAST 0xff << 32)

#define NVP_ADDRESS_MASK	(UINT64_CAST 0xffff8)	
/* Bits 19:3        */

#define NVP_TYPE_SHFT		0

#define NVP_TYPE_MASK		(UINT64_CAST 0x3)

/* NI_VECTOR_STATUS mask and shift definitions */


#define NVS_VALID		(UINT64_CAST 1 << 63)

#define NVS_OVERRUN		(UINT64_CAST 1 << 62)

#define NVS_TARGET_SHFT		51

#define NVS_TARGET_MASK		(UINT64_CAST 0x3ff << 51)

#define NVS_PIOID_SHFT		40

#define NVS_PIOID_MASK		(UINT64_CAST 0x3ff << 40)

#define NVS_WRITEID_SHFT	32

#define NVS_WRITEID_MASK	(UINT64_CAST 0xff << 32)

#define NVS_ADDRESS_MASK	(UINT64_CAST 0xfffffff8)   
/* Bits 31:3        */

#define NVS_TYPE_SHFT		0

#define NVS_TYPE_MASK		(UINT64_CAST 0x7)

#define NVS_ERROR_MASK		(UINT64_CAST 0x4)  
/* bit set means error */



#define	 PIOTYPE_READ		0	
/* VECTOR_PARMS and VECTOR_STATUS   */

#define	 PIOTYPE_WRITE		1	
/* VECTOR_PARMS and VECTOR_STATUS   */

#define	 PIOTYPE_UNDEFINED	2	
/* VECTOR_PARMS and VECTOR_STATUS   */

#define	 PIOTYPE_EXCHANGE	3	
/* VECTOR_PARMS and VECTOR_STATUS   */

#define	 PIOTYPE_ADDR_ERR	4	
/* VECTOR_STATUS only               */

#define	 PIOTYPE_CMD_ERR	5	
/* VECTOR_STATUS only               */

#define	 PIOTYPE_PROT_ERR	6	
/* VECTOR_STATUS only               */

#define	 PIOTYPE_UNKNOWN	7	
/* VECTOR_STATUS only               */

/* NI_AGE_XXX mask and shift definitions */


#define NAGE_VCH_SHFT		10

#define NAGE_VCH_MASK		(UINT64_CAST 3 << 10)

#define NAGE_CC_SHFT		8

#define NAGE_CC_MASK		(UINT64_CAST 3 << 8)

#define NAGE_AGE_SHFT		0

#define NAGE_AGE_MASK		(UINT64_CAST 0xff)

#define NAGE_MASK		(NAGE_VCH_MASK | NAGE_CC_MASK | NAGE_AGE_MASK)


#define	 VCHANNEL_A		0

#define	 VCHANNEL_B		1

#define	 VCHANNEL_ANY		2

/* NI_PORT_PARMS mask and shift definitions */


#define NPP_NULLTO_SHFT		10

#define NPP_NULLTO_MASK		(UINT64_CAST 0x3f << 16)

#define NPP_MAXBURST_SHFT	0

#define NPP_MAXBURST_MASK	(UINT64_CAST 0x3ff)

#define NPP_RESET_DFLT_HUB20	((UINT64_CAST 1     << NPP_NULLTO_SHFT) | \
                                 (UINT64_CAST 0x3f0 << NPP_MAXBURST_SHFT))

#define NPP_RESET_DEFAULTS	((UINT64_CAST 6     << NPP_NULLTO_SHFT) | \
                                 (UINT64_CAST 0x3f0 << NPP_MAXBURST_SHFT))


/* NI_PORT_ERROR mask and shift definitions */


#define NPE_LINKRESET		(UINT64_CAST 1 << 37)

#define NPE_INTERNALERROR	(UINT64_CAST 1 << 36)

#define NPE_BADMESSAGE		(UINT64_CAST 1 << 35)

#define NPE_BADDEST		(UINT64_CAST 1 << 34)

#define NPE_FIFOOVERFLOW	(UINT64_CAST 1 << 33)

#define NPE_CREDITTO_SHFT	28

#define NPE_CREDITTO_MASK	(UINT64_CAST 0xf << 28)

#define NPE_TAILTO_SHFT		24

#define NPE_TAILTO_MASK		(UINT64_CAST 0xf << 24)

#define NPE_RETRYCOUNT_SHFT	16

#define NPE_RETRYCOUNT_MASK	(UINT64_CAST 0xff << 16)

#define NPE_CBERRCOUNT_SHFT	8

#define NPE_CBERRCOUNT_MASK	(UINT64_CAST 0xff << 8)

#define NPE_SNERRCOUNT_SHFT	0

#define NPE_SNERRCOUNT_MASK	(UINT64_CAST 0xff << 0)

#define NPE_MASK		0x3effffffff


#define NPE_COUNT_MAX		0xff


#define NPE_FATAL_ERRORS	(NPE_LINKRESET | NPE_INTERNALERROR |    \
                                 NPE_BADMESSAGE | NPE_BADDEST |         \
                                 NPE_FIFOOVERFLOW | NPE_CREDITTO_MASK | \
                                 NPE_TAILTO_MASK)

/* NI_META_TABLE mask and shift definitions */


#define NMT_EXIT_PORT_MASK (UINT64_CAST 0xf)

/* NI_LOCAL_TABLE mask and shift definitions */


#define NLT_EXIT_PORT_MASK (UINT64_CAST 0xf)

#ifndef __ASSEMBLY__


typedef union	hubni_port_error_u {
	
u64	nipe_reg_value;
	struct {
	    
u64 nipe_rsvd:	26,	/* unused */
		
nipe_lnk_reset:	 1,	/* link reset */
		
nipe_intl_err:	 1,	/* internal error */
		
nipe_bad_msg:	 1,	/* bad message */
		
nipe_bad_dest:	 1,	/* bad dest     */
		
nipe_fifo_ovfl:	 1,	/* fifo overflow */
		
nipe_rsvd1:	 1,	/* unused */
		
nipe_credit_to:	 4,	/* credit timeout */
		
nipe_tail_to:	 4,	/* tail timeout */
		
nipe_retry_cnt:	 8,	/* retry error count */
		
nipe_cb_cnt:	 8,	/* checkbit error count */
		
nipe_sn_cnt:	 8;	/* sequence number count */
	
} nipe_fields_s;

} hubni_port_error_t;


#define NI_LLP_RETRY_MAX	0xff

#define NI_LLP_CB_MAX		0xff

#define NI_LLP_SN_MAX		0xff

#endif /* !__ASSEMBLY__ */

#endif /* _ASM_SGI_SN0_HUBNI_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)69994.20%125.00%
Ralf Bächle425.66%250.00%
Linus Torvalds10.13%125.00%
Total742100.00%4100.00%
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