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linux/drivers/scsi/sym53c8xx_2/sym_fw.c
Thomas Gleixner 1a59d1b8e0 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 
Based on 1 normalized pattern(s):

  this program 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 either version 2 of the license or at
  your option any later version this program 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 this program if not write to the free software foundation inc
  59 temple place suite 330 boston ma 02111 1307 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 1334 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:35 -07:00

538 lines
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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Device driver for the SYMBIOS/LSILOGIC 53C8XX and 53C1010 family
* of PCI-SCSI IO processors.
*
* Copyright (C) 1999-2001 Gerard Roudier <groudier@free.fr>
*
* This driver is derived from the Linux sym53c8xx driver.
* Copyright (C) 1998-2000 Gerard Roudier
*
* The sym53c8xx driver is derived from the ncr53c8xx driver that had been
* a port of the FreeBSD ncr driver to Linux-1.2.13.
*
* The original ncr driver has been written for 386bsd and FreeBSD by
* Wolfgang Stanglmeier <wolf@cologne.de>
* Stefan Esser <se@mi.Uni-Koeln.de>
* Copyright (C) 1994 Wolfgang Stanglmeier
*
* Other major contributions:
*
* NVRAM detection and reading.
* Copyright (C) 1997 Richard Waltham <dormouse@farsrobt.demon.co.uk>
*
*-----------------------------------------------------------------------------
*/
#include "sym_glue.h"
/*
* Macros used for all firmwares.
*/
#define SYM_GEN_A(s, label) ((short) offsetof(s, label)),
#define SYM_GEN_B(s, label) ((short) offsetof(s, label)),
#define SYM_GEN_Z(s, label) ((short) offsetof(s, label)),
#define PADDR_A(label) SYM_GEN_PADDR_A(struct SYM_FWA_SCR, label)
#define PADDR_B(label) SYM_GEN_PADDR_B(struct SYM_FWB_SCR, label)
#if SYM_CONF_GENERIC_SUPPORT
/*
* Allocate firmware #1 script area.
*/
#define SYM_FWA_SCR sym_fw1a_scr
#define SYM_FWB_SCR sym_fw1b_scr
#define SYM_FWZ_SCR sym_fw1z_scr
#include "sym_fw1.h"
static struct sym_fwa_ofs sym_fw1a_ofs = {
SYM_GEN_FW_A(struct SYM_FWA_SCR)
};
static struct sym_fwb_ofs sym_fw1b_ofs = {
SYM_GEN_FW_B(struct SYM_FWB_SCR)
};
static struct sym_fwz_ofs sym_fw1z_ofs = {
SYM_GEN_FW_Z(struct SYM_FWZ_SCR)
};
#undef SYM_FWA_SCR
#undef SYM_FWB_SCR
#undef SYM_FWZ_SCR
#endif /* SYM_CONF_GENERIC_SUPPORT */
/*
* Allocate firmware #2 script area.
*/
#define SYM_FWA_SCR sym_fw2a_scr
#define SYM_FWB_SCR sym_fw2b_scr
#define SYM_FWZ_SCR sym_fw2z_scr
#include "sym_fw2.h"
static struct sym_fwa_ofs sym_fw2a_ofs = {
SYM_GEN_FW_A(struct SYM_FWA_SCR)
};
static struct sym_fwb_ofs sym_fw2b_ofs = {
SYM_GEN_FW_B(struct SYM_FWB_SCR)
SYM_GEN_B(struct SYM_FWB_SCR, start64)
SYM_GEN_B(struct SYM_FWB_SCR, pm_handle)
};
static struct sym_fwz_ofs sym_fw2z_ofs = {
SYM_GEN_FW_Z(struct SYM_FWZ_SCR)
};
#undef SYM_FWA_SCR
#undef SYM_FWB_SCR
#undef SYM_FWZ_SCR
#undef SYM_GEN_A
#undef SYM_GEN_B
#undef SYM_GEN_Z
#undef PADDR_A
#undef PADDR_B
#if SYM_CONF_GENERIC_SUPPORT
/*
* Patch routine for firmware #1.
*/
static void
sym_fw1_patch(struct Scsi_Host *shost)
{
struct sym_hcb *np = sym_get_hcb(shost);
struct sym_fw1a_scr *scripta0;
struct sym_fw1b_scr *scriptb0;
scripta0 = (struct sym_fw1a_scr *) np->scripta0;
scriptb0 = (struct sym_fw1b_scr *) np->scriptb0;
/*
* Remove LED support if not needed.
*/
if (!(np->features & FE_LED0)) {
scripta0->idle[0] = cpu_to_scr(SCR_NO_OP);
scripta0->reselected[0] = cpu_to_scr(SCR_NO_OP);
scripta0->start[0] = cpu_to_scr(SCR_NO_OP);
}
#ifdef SYM_CONF_IARB_SUPPORT
/*
* If user does not want to use IMMEDIATE ARBITRATION
* when we are reselected while attempting to arbitrate,
* patch the SCRIPTS accordingly with a SCRIPT NO_OP.
*/
if (!SYM_CONF_SET_IARB_ON_ARB_LOST)
scripta0->ungetjob[0] = cpu_to_scr(SCR_NO_OP);
#endif
/*
* Patch some data in SCRIPTS.
* - start and done queue initial bus address.
* - target bus address table bus address.
*/
scriptb0->startpos[0] = cpu_to_scr(np->squeue_ba);
scriptb0->done_pos[0] = cpu_to_scr(np->dqueue_ba);
scriptb0->targtbl[0] = cpu_to_scr(np->targtbl_ba);
}
#endif /* SYM_CONF_GENERIC_SUPPORT */
/*
* Patch routine for firmware #2.
*/
static void
sym_fw2_patch(struct Scsi_Host *shost)
{
struct sym_data *sym_data = shost_priv(shost);
struct pci_dev *pdev = sym_data->pdev;
struct sym_hcb *np = sym_data->ncb;
struct sym_fw2a_scr *scripta0;
struct sym_fw2b_scr *scriptb0;
scripta0 = (struct sym_fw2a_scr *) np->scripta0;
scriptb0 = (struct sym_fw2b_scr *) np->scriptb0;
/*
* Remove LED support if not needed.
*/
if (!(np->features & FE_LED0)) {
scripta0->idle[0] = cpu_to_scr(SCR_NO_OP);
scripta0->reselected[0] = cpu_to_scr(SCR_NO_OP);
scripta0->start[0] = cpu_to_scr(SCR_NO_OP);
}
#if SYM_CONF_DMA_ADDRESSING_MODE == 2
/*
* Remove useless 64 bit DMA specific SCRIPTS,
* when this feature is not available.
*/
if (!use_dac(np)) {
scripta0->is_dmap_dirty[0] = cpu_to_scr(SCR_NO_OP);
scripta0->is_dmap_dirty[1] = 0;
scripta0->is_dmap_dirty[2] = cpu_to_scr(SCR_NO_OP);
scripta0->is_dmap_dirty[3] = 0;
}
#endif
#ifdef SYM_CONF_IARB_SUPPORT
/*
* If user does not want to use IMMEDIATE ARBITRATION
* when we are reselected while attempting to arbitrate,
* patch the SCRIPTS accordingly with a SCRIPT NO_OP.
*/
if (!SYM_CONF_SET_IARB_ON_ARB_LOST)
scripta0->ungetjob[0] = cpu_to_scr(SCR_NO_OP);
#endif
/*
* Patch some variable in SCRIPTS.
* - start and done queue initial bus address.
* - target bus address table bus address.
*/
scriptb0->startpos[0] = cpu_to_scr(np->squeue_ba);
scriptb0->done_pos[0] = cpu_to_scr(np->dqueue_ba);
scriptb0->targtbl[0] = cpu_to_scr(np->targtbl_ba);
/*
* Remove the load of SCNTL4 on reselection if not a C10.
*/
if (!(np->features & FE_C10)) {
scripta0->resel_scntl4[0] = cpu_to_scr(SCR_NO_OP);
scripta0->resel_scntl4[1] = cpu_to_scr(0);
}
/*
* Remove a couple of work-arounds specific to C1010 if
* they are not desirable. See `sym_fw2.h' for more details.
*/
if (!(pdev->device == PCI_DEVICE_ID_LSI_53C1010_66 &&
pdev->revision < 0x1 &&
np->pciclk_khz < 60000)) {
scripta0->datao_phase[0] = cpu_to_scr(SCR_NO_OP);
scripta0->datao_phase[1] = cpu_to_scr(0);
}
if (!(pdev->device == PCI_DEVICE_ID_LSI_53C1010_33 /* &&
pdev->revision < 0xff */)) {
scripta0->sel_done[0] = cpu_to_scr(SCR_NO_OP);
scripta0->sel_done[1] = cpu_to_scr(0);
}
/*
* Patch some other variables in SCRIPTS.
* These ones are loaded by the SCRIPTS processor.
*/
scriptb0->pm0_data_addr[0] =
cpu_to_scr(np->scripta_ba +
offsetof(struct sym_fw2a_scr, pm0_data));
scriptb0->pm1_data_addr[0] =
cpu_to_scr(np->scripta_ba +
offsetof(struct sym_fw2a_scr, pm1_data));
}
/*
* Fill the data area in scripts.
* To be done for all firmwares.
*/
static void
sym_fw_fill_data (u32 *in, u32 *out)
{
int i;
for (i = 0; i < SYM_CONF_MAX_SG; i++) {
*in++ = SCR_CHMOV_TBL ^ SCR_DATA_IN;
*in++ = offsetof (struct sym_dsb, data[i]);
*out++ = SCR_CHMOV_TBL ^ SCR_DATA_OUT;
*out++ = offsetof (struct sym_dsb, data[i]);
}
}
/*
* Setup useful script bus addresses.
* To be done for all firmwares.
*/
static void
sym_fw_setup_bus_addresses(struct sym_hcb *np, struct sym_fw *fw)
{
u32 *pa;
u_short *po;
int i;
/*
* Build the bus address table for script A
* from the script A offset table.
*/
po = (u_short *) fw->a_ofs;
pa = (u32 *) &np->fwa_bas;
for (i = 0 ; i < sizeof(np->fwa_bas)/sizeof(u32) ; i++)
pa[i] = np->scripta_ba + po[i];
/*
* Same for script B.
*/
po = (u_short *) fw->b_ofs;
pa = (u32 *) &np->fwb_bas;
for (i = 0 ; i < sizeof(np->fwb_bas)/sizeof(u32) ; i++)
pa[i] = np->scriptb_ba + po[i];
/*
* Same for script Z.
*/
po = (u_short *) fw->z_ofs;
pa = (u32 *) &np->fwz_bas;
for (i = 0 ; i < sizeof(np->fwz_bas)/sizeof(u32) ; i++)
pa[i] = np->scriptz_ba + po[i];
}
#if SYM_CONF_GENERIC_SUPPORT
/*
* Setup routine for firmware #1.
*/
static void
sym_fw1_setup(struct sym_hcb *np, struct sym_fw *fw)
{
struct sym_fw1a_scr *scripta0;
scripta0 = (struct sym_fw1a_scr *) np->scripta0;
/*
* Fill variable parts in scripts.
*/
sym_fw_fill_data(scripta0->data_in, scripta0->data_out);
/*
* Setup bus addresses used from the C code..
*/
sym_fw_setup_bus_addresses(np, fw);
}
#endif /* SYM_CONF_GENERIC_SUPPORT */
/*
* Setup routine for firmware #2.
*/
static void
sym_fw2_setup(struct sym_hcb *np, struct sym_fw *fw)
{
struct sym_fw2a_scr *scripta0;
scripta0 = (struct sym_fw2a_scr *) np->scripta0;
/*
* Fill variable parts in scripts.
*/
sym_fw_fill_data(scripta0->data_in, scripta0->data_out);
/*
* Setup bus addresses used from the C code..
*/
sym_fw_setup_bus_addresses(np, fw);
}
/*
* Allocate firmware descriptors.
*/
#if SYM_CONF_GENERIC_SUPPORT
static struct sym_fw sym_fw1 = SYM_FW_ENTRY(sym_fw1, "NCR-generic");
#endif /* SYM_CONF_GENERIC_SUPPORT */
static struct sym_fw sym_fw2 = SYM_FW_ENTRY(sym_fw2, "LOAD/STORE-based");
/*
* Find the most appropriate firmware for a chip.
*/
struct sym_fw *
sym_find_firmware(struct sym_chip *chip)
{
if (chip->features & FE_LDSTR)
return &sym_fw2;
#if SYM_CONF_GENERIC_SUPPORT
else if (!(chip->features & (FE_PFEN|FE_NOPM|FE_DAC)))
return &sym_fw1;
#endif
else
return NULL;
}
/*
* Bind a script to physical addresses.
*/
void sym_fw_bind_script(struct sym_hcb *np, u32 *start, int len)
{
u32 opcode, new, old, tmp1, tmp2;
u32 *end, *cur;
int relocs;
cur = start;
end = start + len/4;
while (cur < end) {
opcode = *cur;
/*
* If we forget to change the length
* in scripts, a field will be
* padded with 0. This is an illegal
* command.
*/
if (opcode == 0) {
printf ("%s: ERROR0 IN SCRIPT at %d.\n",
sym_name(np), (int) (cur-start));
++cur;
continue;
};
/*
* We use the bogus value 0xf00ff00f ;-)
* to reserve data area in SCRIPTS.
*/
if (opcode == SCR_DATA_ZERO) {
*cur++ = 0;
continue;
}
if (DEBUG_FLAGS & DEBUG_SCRIPT)
printf ("%d: <%x>\n", (int) (cur-start),
(unsigned)opcode);
/*
* We don't have to decode ALL commands
*/
switch (opcode >> 28) {
case 0xf:
/*
* LOAD / STORE DSA relative, don't relocate.
*/
relocs = 0;
break;
case 0xe:
/*
* LOAD / STORE absolute.
*/
relocs = 1;
break;
case 0xc:
/*
* COPY has TWO arguments.
*/
relocs = 2;
tmp1 = cur[1];
tmp2 = cur[2];
if ((tmp1 ^ tmp2) & 3) {
printf ("%s: ERROR1 IN SCRIPT at %d.\n",
sym_name(np), (int) (cur-start));
}
/*
* If PREFETCH feature not enabled, remove
* the NO FLUSH bit if present.
*/
if ((opcode & SCR_NO_FLUSH) &&
!(np->features & FE_PFEN)) {
opcode = (opcode & ~SCR_NO_FLUSH);
}
break;
case 0x0:
/*
* MOVE/CHMOV (absolute address)
*/
if (!(np->features & FE_WIDE))
opcode = (opcode | OPC_MOVE);
relocs = 1;
break;
case 0x1:
/*
* MOVE/CHMOV (table indirect)
*/
if (!(np->features & FE_WIDE))
opcode = (opcode | OPC_MOVE);
relocs = 0;
break;
#ifdef SYM_CONF_TARGET_ROLE_SUPPORT
case 0x2:
/*
* MOVE/CHMOV in target role (absolute address)
*/
opcode &= ~0x20000000;
if (!(np->features & FE_WIDE))
opcode = (opcode & ~OPC_TCHMOVE);
relocs = 1;
break;
case 0x3:
/*
* MOVE/CHMOV in target role (table indirect)
*/
opcode &= ~0x20000000;
if (!(np->features & FE_WIDE))
opcode = (opcode & ~OPC_TCHMOVE);
relocs = 0;
break;
#endif
case 0x8:
/*
* JUMP / CALL
* don't relocate if relative :-)
*/
if (opcode & 0x00800000)
relocs = 0;
else if ((opcode & 0xf8400000) == 0x80400000)/*JUMP64*/
relocs = 2;
else
relocs = 1;
break;
case 0x4:
case 0x5:
case 0x6:
case 0x7:
relocs = 1;
break;
default:
relocs = 0;
break;
};
/*
* Scriptify:) the opcode.
*/
*cur++ = cpu_to_scr(opcode);
/*
* If no relocation, assume 1 argument
* and just scriptize:) it.
*/
if (!relocs) {
*cur = cpu_to_scr(*cur);
++cur;
continue;
}
/*
* Otherwise performs all needed relocations.
*/
while (relocs--) {
old = *cur;
switch (old & RELOC_MASK) {
case RELOC_REGISTER:
new = (old & ~RELOC_MASK) + np->mmio_ba;
break;
case RELOC_LABEL_A:
new = (old & ~RELOC_MASK) + np->scripta_ba;
break;
case RELOC_LABEL_B:
new = (old & ~RELOC_MASK) + np->scriptb_ba;
break;
case RELOC_SOFTC:
new = (old & ~RELOC_MASK) + np->hcb_ba;
break;
case 0:
/*
* Don't relocate a 0 address.
* They are mostly used for patched or
* script self-modified areas.
*/
if (old == 0) {
new = old;
break;
}
/* fall through */
default:
new = 0;
panic("sym_fw_bind_script: "
"weird relocation %x\n", old);
break;
}
*cur++ = cpu_to_scr(new);
}
};
}
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