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linux_dsm_epyc7002/drivers/scsi/aic94xx/aic94xx_reg.h
Thomas Gleixner 65c85c8378 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 411 
Based on 1 normalized pattern(s):

  this file is licensed under gplv2 this file is part of the [aic94xx]
  driver the [aic94xx] driver is free software you can redistribute it
  and or modify it under the terms of the gnu general public license
  as published by the free software foundation version 2 of the
  license the [aic94xx] driver is distributed in the hope that it will
  be useful but without any warranty without even the implied warranty
  of merchantability or fitness for a particular purpose see the gnu
  general public license for more details you should have received a
  copy of the gnu general public license along with the [aic94xx]
  driver if not write to the free software foundation inc 51 franklin
  st fifth floor boston ma 02110 1301 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 19 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531190112.766909183@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:37:14 +02:00

285 lines
9.5 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Aic94xx SAS/SATA driver hardware registers definitions.
*
* Copyright (C) 2005 Adaptec, Inc. All rights reserved.
* Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
*/
#ifndef _AIC94XX_REG_H_
#define _AIC94XX_REG_H_
#include <asm/io.h>
#include "aic94xx_hwi.h"
/* Values */
#define AIC9410_DEV_REV_B0 0x8
/* MBAR0, SWA, SWB, SWC, internal memory space addresses */
#define REG_BASE_ADDR 0xB8000000
#define REG_BASE_ADDR_CSEQCIO 0xB8002000
#define REG_BASE_ADDR_EXSI 0xB8042800
#define MBAR0_SWA_SIZE 0x58
extern u32 MBAR0_SWB_SIZE;
#define MBAR0_SWC_SIZE 0x8
/* MBAR1, points to On Chip Memory */
#define OCM_BASE_ADDR 0xA0000000
#define OCM_MAX_SIZE 0x20000
/* Smallest address possible to reference */
#define ALL_BASE_ADDR OCM_BASE_ADDR
/* PCI configuration space registers */
#define PCI_IOBAR_OFFSET 4
#define PCI_CONF_MBAR1 0x6C
#define PCI_CONF_MBAR0_SWA 0x70
#define PCI_CONF_MBAR0_SWB 0x74
#define PCI_CONF_MBAR0_SWC 0x78
#define PCI_CONF_MBAR_KEY 0x7C
#define PCI_CONF_FLSH_BAR 0xB8
#include "aic94xx_reg_def.h"
u8 asd_read_reg_byte(struct asd_ha_struct *asd_ha, u32 reg);
u16 asd_read_reg_word(struct asd_ha_struct *asd_ha, u32 reg);
u32 asd_read_reg_dword(struct asd_ha_struct *asd_ha, u32 reg);
void asd_write_reg_byte(struct asd_ha_struct *asd_ha, u32 reg, u8 val);
void asd_write_reg_word(struct asd_ha_struct *asd_ha, u32 reg, u16 val);
void asd_write_reg_dword(struct asd_ha_struct *asd_ha, u32 reg, u32 val);
void asd_read_reg_string(struct asd_ha_struct *asd_ha, void *dst,
u32 offs, int count);
void asd_write_reg_string(struct asd_ha_struct *asd_ha, void *src,
u32 offs, int count);
#define ASD_READ_OCM(type, ord, S) \
static inline type asd_read_ocm_##ord (struct asd_ha_struct *asd_ha, \
u32 offs) \
{ \
struct asd_ha_addrspace *io_handle = &asd_ha->io_handle[1]; \
type val = read##S (io_handle->addr + (unsigned long) offs); \
rmb(); \
return val; \
}
ASD_READ_OCM(u8, byte, b);
ASD_READ_OCM(u16,word, w);
ASD_READ_OCM(u32,dword,l);
#define ASD_WRITE_OCM(type, ord, S) \
static inline void asd_write_ocm_##ord (struct asd_ha_struct *asd_ha, \
u32 offs, type val) \
{ \
struct asd_ha_addrspace *io_handle = &asd_ha->io_handle[1]; \
write##S (val, io_handle->addr + (unsigned long) offs); \
return; \
}
ASD_WRITE_OCM(u8, byte, b);
ASD_WRITE_OCM(u16,word, w);
ASD_WRITE_OCM(u32,dword,l);
#define ASD_DDBSITE_READ(type, ord) \
static inline type asd_ddbsite_read_##ord (struct asd_ha_struct *asd_ha, \
u16 ddb_site_no, \
u16 offs) \
{ \
asd_write_reg_word(asd_ha, ALTCIOADR, MnDDB_SITE + offs); \
asd_write_reg_word(asd_ha, ADDBPTR, ddb_site_no); \
return asd_read_reg_##ord (asd_ha, CTXACCESS); \
}
ASD_DDBSITE_READ(u32, dword);
ASD_DDBSITE_READ(u16, word);
static inline u8 asd_ddbsite_read_byte(struct asd_ha_struct *asd_ha,
u16 ddb_site_no,
u16 offs)
{
if (offs & 1)
return asd_ddbsite_read_word(asd_ha, ddb_site_no,
offs & ~1) >> 8;
else
return asd_ddbsite_read_word(asd_ha, ddb_site_no,
offs) & 0xFF;
}
#define ASD_DDBSITE_WRITE(type, ord) \
static inline void asd_ddbsite_write_##ord (struct asd_ha_struct *asd_ha, \
u16 ddb_site_no, \
u16 offs, type val) \
{ \
asd_write_reg_word(asd_ha, ALTCIOADR, MnDDB_SITE + offs); \
asd_write_reg_word(asd_ha, ADDBPTR, ddb_site_no); \
asd_write_reg_##ord (asd_ha, CTXACCESS, val); \
}
ASD_DDBSITE_WRITE(u32, dword);
ASD_DDBSITE_WRITE(u16, word);
static inline void asd_ddbsite_write_byte(struct asd_ha_struct *asd_ha,
u16 ddb_site_no,
u16 offs, u8 val)
{
u16 base = offs & ~1;
u16 rval = asd_ddbsite_read_word(asd_ha, ddb_site_no, base);
if (offs & 1)
rval = (val << 8) | (rval & 0xFF);
else
rval = (rval & 0xFF00) | val;
asd_ddbsite_write_word(asd_ha, ddb_site_no, base, rval);
}
#define ASD_SCBSITE_READ(type, ord) \
static inline type asd_scbsite_read_##ord (struct asd_ha_struct *asd_ha, \
u16 scb_site_no, \
u16 offs) \
{ \
asd_write_reg_word(asd_ha, ALTCIOADR, MnSCB_SITE + offs); \
asd_write_reg_word(asd_ha, ASCBPTR, scb_site_no); \
return asd_read_reg_##ord (asd_ha, CTXACCESS); \
}
ASD_SCBSITE_READ(u32, dword);
ASD_SCBSITE_READ(u16, word);
static inline u8 asd_scbsite_read_byte(struct asd_ha_struct *asd_ha,
u16 scb_site_no,
u16 offs)
{
if (offs & 1)
return asd_scbsite_read_word(asd_ha, scb_site_no,
offs & ~1) >> 8;
else
return asd_scbsite_read_word(asd_ha, scb_site_no,
offs) & 0xFF;
}
#define ASD_SCBSITE_WRITE(type, ord) \
static inline void asd_scbsite_write_##ord (struct asd_ha_struct *asd_ha, \
u16 scb_site_no, \
u16 offs, type val) \
{ \
asd_write_reg_word(asd_ha, ALTCIOADR, MnSCB_SITE + offs); \
asd_write_reg_word(asd_ha, ASCBPTR, scb_site_no); \
asd_write_reg_##ord (asd_ha, CTXACCESS, val); \
}
ASD_SCBSITE_WRITE(u32, dword);
ASD_SCBSITE_WRITE(u16, word);
static inline void asd_scbsite_write_byte(struct asd_ha_struct *asd_ha,
u16 scb_site_no,
u16 offs, u8 val)
{
u16 base = offs & ~1;
u16 rval = asd_scbsite_read_word(asd_ha, scb_site_no, base);
if (offs & 1)
rval = (val << 8) | (rval & 0xFF);
else
rval = (rval & 0xFF00) | val;
asd_scbsite_write_word(asd_ha, scb_site_no, base, rval);
}
/**
* asd_ddbsite_update_word -- atomically update a word in a ddb site
* @asd_ha: pointer to host adapter structure
* @ddb_site_no: the DDB site number
* @offs: the offset into the DDB
* @oldval: old value found in that offset
* @newval: the new value to replace it
*
* This function is used when the sequencers are running and we need to
* update a DDB site atomically without expensive pausing and upausing
* of the sequencers and accessing the DDB site through the CIO bus.
*
* Return 0 on success; -EFAULT on parity error; -EAGAIN if the old value
* is different than the current value at that offset.
*/
static inline int asd_ddbsite_update_word(struct asd_ha_struct *asd_ha,
u16 ddb_site_no, u16 offs,
u16 oldval, u16 newval)
{
u8 done;
u16 oval = asd_ddbsite_read_word(asd_ha, ddb_site_no, offs);
if (oval != oldval)
return -EAGAIN;
asd_write_reg_word(asd_ha, AOLDDATA, oldval);
asd_write_reg_word(asd_ha, ANEWDATA, newval);
do {
done = asd_read_reg_byte(asd_ha, ATOMICSTATCTL);
} while (!(done & ATOMICDONE));
if (done & ATOMICERR)
return -EFAULT; /* parity error */
else if (done & ATOMICWIN)
return 0; /* success */
else
return -EAGAIN; /* oldval different than current value */
}
static inline int asd_ddbsite_update_byte(struct asd_ha_struct *asd_ha,
u16 ddb_site_no, u16 offs,
u8 _oldval, u8 _newval)
{
u16 base = offs & ~1;
u16 oval;
u16 nval = asd_ddbsite_read_word(asd_ha, ddb_site_no, base);
if (offs & 1) {
if ((nval >> 8) != _oldval)
return -EAGAIN;
nval = (_newval << 8) | (nval & 0xFF);
oval = (_oldval << 8) | (nval & 0xFF);
} else {
if ((nval & 0xFF) != _oldval)
return -EAGAIN;
nval = (nval & 0xFF00) | _newval;
oval = (nval & 0xFF00) | _oldval;
}
return asd_ddbsite_update_word(asd_ha, ddb_site_no, base, oval, nval);
}
static inline void asd_write_reg_addr(struct asd_ha_struct *asd_ha, u32 reg,
dma_addr_t dma_handle)
{
asd_write_reg_dword(asd_ha, reg, ASD_BUSADDR_LO(dma_handle));
asd_write_reg_dword(asd_ha, reg+4, ASD_BUSADDR_HI(dma_handle));
}
static inline u32 asd_get_cmdctx_size(struct asd_ha_struct *asd_ha)
{
/* DCHREVISION returns 0, possibly broken */
u32 ctxmemsize = asd_read_reg_dword(asd_ha, LmMnINT(0,0)) & CTXMEMSIZE;
return ctxmemsize ? 65536 : 32768;
}
static inline u32 asd_get_devctx_size(struct asd_ha_struct *asd_ha)
{
u32 ctxmemsize = asd_read_reg_dword(asd_ha, LmMnINT(0,0)) & CTXMEMSIZE;
return ctxmemsize ? 8192 : 4096;
}
static inline void asd_disable_ints(struct asd_ha_struct *asd_ha)
{
asd_write_reg_dword(asd_ha, CHIMINTEN, RST_CHIMINTEN);
}
static inline void asd_enable_ints(struct asd_ha_struct *asd_ha)
{
/* Enable COM SAS interrupt on errors, COMSTAT */
asd_write_reg_dword(asd_ha, COMSTATEN,
EN_CSBUFPERR | EN_CSERR | EN_OVLYERR);
/* Enable DCH SAS CFIFTOERR */
asd_write_reg_dword(asd_ha, DCHSTATUS, EN_CFIFTOERR);
/* Enable Host Device interrupts */
asd_write_reg_dword(asd_ha, CHIMINTEN, SET_CHIMINTEN);
}
#endif
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