sym_fw.c
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上传日期:2013-04-10
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文件大小:15k
- /*
- * 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>
- *
- *-----------------------------------------------------------------------------
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * Where this Software is combined with software released under the terms of
- * the GNU Public License ("GPL") and the terms of the GPL would require the
- * combined work to also be released under the terms of the GPL, the terms
- * and conditions of this License will apply in addition to those of the
- * GPL with the exception of any terms or conditions of this License that
- * conflict with, or are expressly prohibited by, the GPL.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
- * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
- #ifdef __FreeBSD__
- #include <dev/sym/sym_glue.h>
- #else
- #include "sym_glue.h"
- #endif
- /*
- * 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
- #ifdef __FreeBSD__
- #include <dev/sym/sym_fw1.h>
- #else
- #include "sym_fw1.h"
- #endif
- 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)
- #ifdef SYM_OPT_HANDLE_DIR_UNKNOWN
- SYM_GEN_B(struct SYM_FWB_SCR, data_io)
- #endif
- };
- static struct sym_fwz_ofs sym_fw1z_ofs = {
- SYM_GEN_FW_Z(struct SYM_FWZ_SCR)
- #ifdef SYM_OPT_NO_BUS_MEMORY_MAPPING
- SYM_GEN_Z(struct SYM_FWZ_SCR, start_ram)
- #endif
- };
- #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
- #ifdef __FreeBSD__
- #include <dev/sym/sym_fw2.h>
- #else
- #include "sym_fw2.h"
- #endif
- 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)
- #ifdef SYM_OPT_HANDLE_DIR_UNKNOWN
- SYM_GEN_B(struct SYM_FWB_SCR, data_io)
- #endif
- 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)
- #ifdef SYM_OPT_NO_BUS_MEMORY_MAPPING
- SYM_GEN_Z(struct SYM_FWZ_SCR, start_ram)
- SYM_GEN_Z(struct SYM_FWZ_SCR, start_ram64)
- #endif
- };
- #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(hcb_p np)
- {
- struct sym_fw1a_scr *scripta0;
- struct sym_fw1b_scr *scriptb0;
- #ifdef SYM_OPT_NO_BUS_MEMORY_MAPPING
- struct sym_fw1z_scr *scriptz0 =
- (struct sym_fw1z_scr *) np->scriptz0;
- #endif
- scripta0 = (struct sym_fw1a_scr *) np->scripta0;
- scriptb0 = (struct sym_fw1b_scr *) np->scriptb0;
- #ifdef SYM_OPT_NO_BUS_MEMORY_MAPPING
- /*
- * Set up BUS physical address of SCRIPTS that is to
- * be copied to on-chip RAM by the SCRIPTS processor.
- */
- scriptz0->scripta0_ba[0] = cpu_to_scr(vtobus(scripta0));
- #endif
- /*
- * 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(hcb_p np)
- {
- struct sym_fw2a_scr *scripta0;
- struct sym_fw2b_scr *scriptb0;
- #ifdef SYM_OPT_NO_BUS_MEMORY_MAPPING
- struct sym_fw2z_scr *scriptz0 =
- (struct sym_fw2z_scr *) np->scriptz0;
- #endif
- scripta0 = (struct sym_fw2a_scr *) np->scripta0;
- scriptb0 = (struct sym_fw2b_scr *) np->scriptb0;
- #ifdef SYM_OPT_NO_BUS_MEMORY_MAPPING
- /*
- * Set up BUS physical address of SCRIPTS that is to
- * be copied to on-chip RAM by the SCRIPTS processor.
- */
- scriptz0->scripta0_ba64[0] = /* Nothing is missing here */
- scriptz0->scripta0_ba[0] = cpu_to_scr(vtobus(scripta0));
- scriptz0->scriptb0_ba64[0] = cpu_to_scr(vtobus(scriptb0));
- scriptz0->ram_seg64[0] = np->scr_ram_seg;
- #endif
- /*
- * 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 (!np->use_dac) {
- 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 (!(np->device_id == PCI_ID_LSI53C1010_2 &&
- np->revision_id < 0x1 &&
- np->pciclk_khz < 60000)) {
- scripta0->datao_phase[0] = cpu_to_scr(SCR_NO_OP);
- scripta0->datao_phase[1] = cpu_to_scr(0);
- }
- if (!(np->device_id == PCI_ID_LSI53C1010 &&
- /* np->revision_id < 0xff */ 1)) {
- 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(hcb_p 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(hcb_p np, struct sym_fw *fw)
- {
- struct sym_fw1a_scr *scripta0;
- struct sym_fw1b_scr *scriptb0;
- scripta0 = (struct sym_fw1a_scr *) np->scripta0;
- scriptb0 = (struct sym_fw1b_scr *) np->scriptb0;
- /*
- * 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(hcb_p np, struct sym_fw *fw)
- {
- struct sym_fw2a_scr *scripta0;
- struct sym_fw2b_scr *scriptb0;
- scripta0 = (struct sym_fw2a_scr *) np->scripta0;
- scriptb0 = (struct sym_fw2b_scr *) np->scriptb0;
- /*
- * 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_pci_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 0;
- }
- /*
- * Bind a script to physical addresses.
- */
- void sym_fw_bind_script (hcb_p 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));
- MDELAY (10000);
- ++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));
- MDELAY (10000);
- }
- /*
- * 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
- * dont'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 %xn", old);
- break;
- }
- *cur++ = cpu_to_scr(new);
- }
- };
- }