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Diffstat (limited to 'drivers/scsi/sym53c8xx_2/sym_fw.c')
-rw-r--r--drivers/scsi/sym53c8xx_2/sym_fw.c537
1 files changed, 537 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 000000000..c536d2a9a
--- /dev/null
+++ b/drivers/scsi/sym53c8xx_2/sym_fw.c
@@ -0,0 +1,537 @@
+// 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;
+ }
+ fallthrough;
+ default:
+ new = 0;
+ panic("sym_fw_bind_script: "
+ "weird relocation %x\n", old);
+ break;
+ }
+
+ *cur++ = cpu_to_scr(new);
+ }
+ }
+}
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