Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 568 insertions, 0 deletions

diff --git a/drivers/scsi/sym53c8xx_2/sym_fw.c b/drivers/scsi/sym53c8xx_2/sym_fw.c
new file mode 100644
index 00000000000..fd36cf9858c
--- /dev/null
+++ b/drivers/scsi/sym53c8xx_2/sym_fw.c
@@ -0,0 +1,568 @@
+/*
+ * 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>
+ *
+ *-----------------------------------------------------------------------------
+ *
+ * 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
+ */
+
+#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)
+};
+#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)
+};
+#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 sym_hcb *np)
+{
+        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 sym_hcb *np)
+{
+        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 (!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_DEVICE_ID_LSI_53C1010_66 &&
+              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_DEVICE_ID_LSI_53C1010_33 &&
+              /* 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(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;
+        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(struct sym_hcb *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_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);
+                }
+        };
+}