/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2007 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #pragma ident "%Z%%M% %I% %E% SMI" #include #include #include #include #include #include #include #include #include #include #include #include #include int agptarget_debug_var = 0; #define TARGETDB_PRINT2(fmt) if (agptarget_debug_var >= 1) cmn_err fmt #define INST2NODENUM(inst) (inst) #define DEV2INST(dev) (getminor(dev)) typedef struct agp_target_softstate { dev_info_t *tsoft_dip; ddi_acc_handle_t tsoft_pcihdl; uint32_t tsoft_devid; /* The offset of the ACAPID register */ off_t tsoft_acaptr; kmutex_t tsoft_lock; }agp_target_softstate_t; /* * To get the pre-allocated graphics mem size using Graphics Mode Select * (GMS) value. */ typedef struct gms_mode { uint32_t gm_devid; /* bridge vendor + device id */ off_t gm_regoff; /* mode selection register offset */ uint32_t gm_mask; /* GMS mask */ uint32_t gm_num; /* number of modes in gm_vec */ int *gm_vec; /* modes array */ } gms_mode_t; static void *agptarget_glob_soft_handle; #define GETSOFTC(instance) ((agp_target_softstate_t *) \ ddi_get_soft_state(agptarget_glob_soft_handle, instance)); /* * The AMD8151 bridge is the only supported 64 bit hardware */ static int is_64bit_aper(agp_target_softstate_t *softstate) { return (softstate->tsoft_devid == AMD_BR_8151); } /* * Check if it is an intel bridge */ static int is_intel_br(agp_target_softstate_t *softstate) { return ((softstate->tsoft_devid & VENDOR_ID_MASK) == INTEL_VENDOR_ID); } /* * agp_target_cap_find() * * Description: * This function searches the linked capability list to find the offset * of the AGP capability register. When it was not found, return 0. * This works for standard AGP chipsets, but not for some Intel chipsets, * like the I830M/I830MP/I852PM/I852GME/I855GME. It will return 0 for * these chipsets even if AGP is supported. So the offset of acapid * should be set manually in thoses cases. * * Arguments: * pci_handle ddi acc handle of pci config * * Returns: * 0 No capability pointer register found * nexcap The AGP capability pointer register offset */ static off_t agp_target_cap_find(ddi_acc_handle_t pci_handle) { off_t nextcap = 0; uint32_t ncapid = 0; uint8_t value = 0; /* Check if this device supports the capability pointer */ value = (uint8_t)(pci_config_get16(pci_handle, PCI_CONF_STAT) & PCI_CONF_CAP_MASK); if (!value) return (0); /* Get the offset of the first capability pointer from CAPPTR */ nextcap = (off_t)(pci_config_get8(pci_handle, AGP_CONF_CAPPTR)); /* Check the AGP capability from the first capability pointer */ while (nextcap) { ncapid = pci_config_get32(pci_handle, nextcap); /* * AGP3.0 rev1.0 127 the capid was assigned by the PCI SIG, * 845 data sheet page 69 */ if ((ncapid & PCI_CONF_CAPID_MASK) == AGP_CAP_ID) /* The AGP cap was found */ break; nextcap = (off_t)((ncapid & PCI_CONF_NCAPID_MASK) >> 8); } return (nextcap); } /* * agp_target_get_aperbase() * * Description: * This function gets the AGP aperture base address from the AGP target * register, the AGP aperture base register was programmed by the BIOS. * * Arguments: * softstate driver soft state pointer * * Returns: * aper_base AGP aperture base address * * Notes: * If a 64bit bridge device is available, the AGP aperture base address * can be 64 bit. */ static uint64_t agp_target_get_apbase(agp_target_softstate_t *softstate) { uint64_t aper_base; if (is_intel_br(softstate)) { aper_base = pci_config_get32(softstate->tsoft_pcihdl, AGP_CONF_APERBASE) & AGP_32_APERBASE_MASK; } else if (is_64bit_aper(softstate)) { aper_base = pci_config_get64(softstate->tsoft_pcihdl, AGP_CONF_APERBASE); /* 32-bit or 64-bit aperbase base pointer */ if ((aper_base & AGP_APER_TYPE_MASK) == 0) aper_base &= AGP_32_APERBASE_MASK; else aper_base &= AGP_64_APERBASE_MASK; } return (aper_base); } /* * agp_target_get_apsize() * * Description: * This function gets the AGP aperture size by reading the AGP aperture * size register. * Arguments: * softstate driver soft state pointer * * Return: * size The AGP aperture size in megabytes * 0 an unexpected error */ static size_t agp_target_get_apsize(agp_target_softstate_t *softstate) { off_t cap; uint16_t value; size_t size, regsize; ASSERT(softstate->tsoft_acaptr); cap = softstate->tsoft_acaptr; if (is_intel_br(softstate)) { /* extend this value to 16 bit for later tests */ value = (uint16_t)pci_config_get8(softstate->tsoft_pcihdl, cap + AGP_CONF_APERSIZE) | AGP_APER_SIZE_MASK; } else if (is_64bit_aper(softstate)) { value = pci_config_get16(softstate->tsoft_pcihdl, cap + AGP_CONF_APERSIZE); } if (value & AGP_APER_128M_MASK) { switch (value & AGP_APER_128M_MASK) { case AGP_APER_4M: size = 4; /* 4M */ break; case AGP_APER_8M: size = 8; /* 8M */ break; case AGP_APER_16M: size = 16; /* 16M */ break; case AGP_APER_32M: size = 32; /* 32M */ break; case AGP_APER_64M: size = 64; /* 64M */ break; case AGP_APER_128M: size = 128; /* 128M */ break; default: size = 0; /* not true */ } } else { switch (value & AGP_APER_4G_MASK) { case AGP_APER_256M: size = 256; /* 256 M */ break; case AGP_APER_512M: size = 512; /* 512 M */ break; case AGP_APER_1024M: size = 1024; /* 1024 M */ break; case AGP_APER_2048M: size = 2048; /* 2048 M */ break; case AGP_APER_4G: size = 4096; /* 4096 M */ break; default: size = 0; /* not true */ } } /* * In some cases, there is no APSIZE register, so the size value * of 256M could be wrong. Check the value by reading the size of * the first register which was set in the PCI configuration space. */ if (size == 256) { if (ddi_dev_regsize(softstate->tsoft_dip, AGP_TARGET_BAR1, (off_t *)®size) == DDI_FAILURE) return (0); if (MB2BYTES(size) != regsize) { TARGETDB_PRINT2((CE_WARN, "APSIZE 256M doesn't match regsize %lx", regsize)); TARGETDB_PRINT2((CE_WARN, "Use regsize instead")); size = BYTES2MB(regsize); } } return (size); } static void agp_target_set_gartaddr(agp_target_softstate_t *softstate, uint32_t gartaddr) { ASSERT(softstate->tsoft_acaptr); /* Disable the GTLB for Intel chipsets */ pci_config_put16(softstate->tsoft_pcihdl, softstate->tsoft_acaptr + AGP_CONF_CONTROL, 0x0000); pci_config_put32(softstate->tsoft_pcihdl, softstate->tsoft_acaptr + AGP_CONF_ATTBASE, gartaddr & AGP_ATTBASE_MASK); } /* * Pre-allocated graphics memory for every type of Intel north bridge, mem size * are specified in kbytes. */ #define GMS_MB(n) ((n) * 1024) #define GMS_SHIFT 4 #define GMS_SIZE(a) (sizeof (a) / sizeof (int)) /* * Since value zero always means "No memory pre-allocated", value of (GMS - 1) * is used to index these arrays, i.e. gms_xxx[1] contains the mem size (in kb) * that GMS value 0x1 corresponding to. * * Assuming all "reserved" GMS value as zero bytes of pre-allocated graphics * memory, unless some special BIOS settings exist. */ static int gms_810[12] = {0, 0, 0, 0, 0, 0, 0, 512, 0, 0, 0, GMS_MB(1)}; static int gms_830_845[4] = {0, 512, GMS_MB(1), GMS_MB(8)}; static int gms_855GM[5] = {GMS_MB(1), GMS_MB(4), GMS_MB(8), GMS_MB(16), GMS_MB(32)}; /* There is no modes for 16M in datasheet, but some BIOS add it. */ static int gms_865_915GM[4] = {GMS_MB(1), 0, GMS_MB(8), GMS_MB(16)}; static int gms_915_945_965[3] = {GMS_MB(1), 0, GMS_MB(8)}; static int gms_965GM[7] = {GMS_MB(1), GMS_MB(4), GMS_MB(8), GMS_MB(16), GMS_MB(32), GMS_MB(48), GMS_MB(64)}; static int gms_X33[9] = {GMS_MB(1), GMS_MB(4), GMS_MB(8), GMS_MB(16), GMS_MB(32), GMS_MB(48), GMS_MB(64), GMS_MB(128), GMS_MB(256)}; static gms_mode_t gms_modes[] = { {INTEL_BR_810, I810_CONF_SMRAM, I810_GMS_MASK, GMS_SIZE(gms_810), gms_810}, {INTEL_BR_810DC, I810_CONF_SMRAM, I810_GMS_MASK, GMS_SIZE(gms_810), gms_810}, {INTEL_BR_810E, I810_CONF_SMRAM, I810_GMS_MASK, GMS_SIZE(gms_810), gms_810}, {INTEL_BR_830M, I8XX_CONF_GC, I8XX_GC_MODE_MASK, GMS_SIZE(gms_830_845), gms_830_845}, {INTEL_BR_845, I8XX_CONF_GC, I8XX_GC_MODE_MASK, GMS_SIZE(gms_830_845), gms_830_845}, {INTEL_BR_855GM, I8XX_CONF_GC, I8XX_GC_MODE_MASK, GMS_SIZE(gms_855GM), gms_855GM}, {INTEL_BR_865, I8XX_CONF_GC, I8XX_GC_MODE_MASK, GMS_SIZE(gms_865_915GM), gms_865_915GM}, {INTEL_BR_915GM, I8XX_CONF_GC, I8XX_GC_MODE_MASK, GMS_SIZE(gms_865_915GM), gms_865_915GM}, {INTEL_BR_915, I8XX_CONF_GC, I8XX_GC_MODE_MASK, GMS_SIZE(gms_915_945_965), gms_915_945_965}, {INTEL_BR_945, I8XX_CONF_GC, I8XX_GC_MODE_MASK, GMS_SIZE(gms_915_945_965), gms_915_945_965}, {INTEL_BR_945GM, I8XX_CONF_GC, I8XX_GC_MODE_MASK, GMS_SIZE(gms_915_945_965), gms_915_945_965}, {INTEL_BR_946GZ, I8XX_CONF_GC, I8XX_GC_MODE_MASK, GMS_SIZE(gms_915_945_965), gms_915_945_965}, {INTEL_BR_965G1, I8XX_CONF_GC, I8XX_GC_MODE_MASK, GMS_SIZE(gms_915_945_965), gms_915_945_965}, {INTEL_BR_965G2, I8XX_CONF_GC, I8XX_GC_MODE_MASK, GMS_SIZE(gms_915_945_965), gms_915_945_965}, {INTEL_BR_965Q, I8XX_CONF_GC, I8XX_GC_MODE_MASK, GMS_SIZE(gms_915_945_965), gms_915_945_965}, {INTEL_BR_965GM, I8XX_CONF_GC, I8XX_GC_MODE_MASK, GMS_SIZE(gms_965GM), gms_965GM}, {INTEL_BR_965GME, I8XX_CONF_GC, I8XX_GC_MODE_MASK, GMS_SIZE(gms_965GM), gms_965GM}, {INTEL_BR_Q35, I8XX_CONF_GC, IX33_GC_MODE_MASK, GMS_SIZE(gms_X33), gms_X33}, {INTEL_BR_G33, I8XX_CONF_GC, IX33_GC_MODE_MASK, GMS_SIZE(gms_X33), gms_X33}, {INTEL_BR_Q33, I8XX_CONF_GC, IX33_GC_MODE_MASK, GMS_SIZE(gms_X33), gms_X33} }; /* Returns the size (kbytes) of pre-allocated graphics memory */ static size_t i8xx_biosmem_detect(agp_target_softstate_t *softstate) { uint8_t memval; size_t kbytes; int i; int num_modes; kbytes = 0; /* get GMS modes list entry */ num_modes = (sizeof (gms_modes) / sizeof (gms_mode_t)); for (i = 0; i < num_modes; i++) { if (gms_modes[i].gm_devid == softstate->tsoft_devid) break; } if (i == num_modes) goto done; /* fetch the GMS value from DRAM controller */ memval = pci_config_get8(softstate->tsoft_pcihdl, gms_modes[i].gm_regoff); TARGETDB_PRINT2((CE_NOTE, "i8xx_biosmem_detect: memval = %x", memval)); memval = (memval & gms_modes[i].gm_mask) >> GMS_SHIFT; /* assuming zero byte for 0 or "reserved" GMS values */ if (memval == 0 || memval > gms_modes[i].gm_num) { TARGETDB_PRINT2((CE_WARN, "i8xx_biosmem_detect: " "devid = %x, GMS = %x. assuming zero byte of " "pre-allocated memory", gms_modes[i].gm_devid, memval)); goto done; } memval--; /* use (GMS_value - 1) as index */ kbytes = (gms_modes[i].gm_vec)[memval]; done: TARGETDB_PRINT2((CE_NOTE, "i8xx_biosmem_detect: %ldKB BIOS pre-allocated memory detected", kbytes)); return (kbytes); } /*ARGSUSED*/ static int agptarget_getinfo(dev_info_t *dip, ddi_info_cmd_t cmd, void *arg, void **resultp) { agp_target_softstate_t *st; int instance, rval = DDI_FAILURE; dev_t dev; switch (cmd) { case DDI_INFO_DEVT2DEVINFO: dev = (dev_t)arg; instance = DEV2INST(dev); st = ddi_get_soft_state(agptarget_glob_soft_handle, instance); if (st != NULL) { mutex_enter(&st->tsoft_lock); *resultp = st->tsoft_dip; mutex_exit(&st->tsoft_lock); rval = DDI_SUCCESS; } else *resultp = NULL; break; case DDI_INFO_DEVT2INSTANCE: dev = (dev_t)arg; instance = DEV2INST(dev); *resultp = (void *)(uintptr_t)instance; rval = DDI_SUCCESS; default: break; } return (rval); } static int agp_target_attach(dev_info_t *dip, ddi_attach_cmd_t cmd) { agp_target_softstate_t *softstate; int instance; int status; if (cmd != DDI_ATTACH) return (DDI_FAILURE); instance = ddi_get_instance(dip); if (ddi_soft_state_zalloc(agptarget_glob_soft_handle, instance) != DDI_SUCCESS) return (DDI_FAILURE); softstate = ddi_get_soft_state(agptarget_glob_soft_handle, instance); mutex_init(&softstate->tsoft_lock, NULL, MUTEX_DRIVER, NULL); softstate->tsoft_dip = dip; status = pci_config_setup(dip, &softstate->tsoft_pcihdl); if (status != DDI_SUCCESS) { ddi_soft_state_free(agptarget_glob_soft_handle, instance); return (DDI_FAILURE); } softstate->tsoft_devid = pci_config_get32(softstate->tsoft_pcihdl, PCI_CONF_VENID); softstate->tsoft_acaptr = agp_target_cap_find(softstate->tsoft_pcihdl); if (softstate->tsoft_acaptr == 0) { /* Make a correction for some Intel chipsets */ if (is_intel_br(softstate)) softstate->tsoft_acaptr = AGP_CAP_OFF_DEF; else return (DDI_FAILURE); } status = ddi_create_minor_node(dip, AGPTARGET_NAME, S_IFCHR, INST2NODENUM(instance), DDI_NT_AGP_TARGET, 0); if (status != DDI_SUCCESS) { pci_config_teardown(&softstate->tsoft_pcihdl); ddi_soft_state_free(agptarget_glob_soft_handle, instance); return (DDI_FAILURE); } return (DDI_SUCCESS); } /*ARGSUSED*/ static int agp_target_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) { int instance; agp_target_softstate_t *softstate; if (cmd != DDI_DETACH) return (DDI_FAILURE); instance = ddi_get_instance(dip); softstate = ddi_get_soft_state(agptarget_glob_soft_handle, instance); ddi_remove_minor_node(dip, AGPTARGET_NAME); pci_config_teardown(&softstate->tsoft_pcihdl); mutex_destroy(&softstate->tsoft_lock); ddi_soft_state_free(agptarget_glob_soft_handle, instance); return (DDI_SUCCESS); } /*ARGSUSED*/ static int agp_target_ioctl(dev_t dev, int cmd, intptr_t data, int mode, cred_t *cred, int *rval) { int instance = DEV2INST(dev); agp_target_softstate_t *st; static char kernel_only[] = "amd64_gart_ioctl: is a kernel only ioctl"; if (!(mode & FKIOCTL)) { TARGETDB_PRINT2((CE_CONT, kernel_only)); return (ENXIO); } st = GETSOFTC(instance); if (st == NULL) return (ENXIO); mutex_enter(&st->tsoft_lock); switch (cmd) { case CHIP_DETECT: { int type = 0; if (is_intel_br(st)) type = CHIP_IS_INTEL; else if (is_64bit_aper(st)) type = CHIP_IS_AMD; else { type = 0; TARGETDB_PRINT2((CE_WARN, "Unknown bridge!")); } if (ddi_copyout(&type, (void *)data, sizeof (int), mode)) { mutex_exit(&st->tsoft_lock); return (EFAULT); } break; } case I8XX_GET_PREALLOC_SIZE: { size_t prealloc_size; if (!is_intel_br(st)) { mutex_exit(&st->tsoft_lock); return (EINVAL); } prealloc_size = i8xx_biosmem_detect(st); if (ddi_copyout(&prealloc_size, (void *)data, sizeof (size_t), mode)) { mutex_exit(&st->tsoft_lock); return (EFAULT); } break; } case AGP_TARGET_GETINFO: { i_agp_info_t info; uint32_t value; off_t cap; ASSERT(st->tsoft_acaptr); cap = st->tsoft_acaptr; value = pci_config_get32(st->tsoft_pcihdl, cap); info.iagp_ver.agpv_major = (uint16_t)((value >> 20) & 0xf); info.iagp_ver.agpv_minor = (uint16_t)((value >> 16) & 0xf); info.iagp_devid = st->tsoft_devid; info.iagp_mode = pci_config_get32(st->tsoft_pcihdl, cap + AGP_CONF_STATUS); info.iagp_aperbase = agp_target_get_apbase(st); info.iagp_apersize = agp_target_get_apsize(st); if (ddi_copyout(&info, (void *)data, sizeof (i_agp_info_t), mode)) { mutex_exit(&st->tsoft_lock); return (EFAULT); } break; } /* * This ioctl is only for Intel AGP chipsets. * It is not necessary for the AMD8151 AGP bridge, because * this register in the AMD8151 does not control any hardware. * It is only provided for compatibility with an Intel AGP bridge. * Please refer to the <> page 24, * AGP device GART pointer. */ case AGP_TARGET_SET_GATTADDR: { uint32_t gartaddr; if (ddi_copyin((void *)data, &gartaddr, sizeof (uint32_t), mode)) { mutex_exit(&st->tsoft_lock); return (EFAULT); } agp_target_set_gartaddr(st, gartaddr); break; } case AGP_TARGET_SETCMD: { uint32_t command; if (ddi_copyin((void *)data, &command, sizeof (uint32_t), mode)) { mutex_exit(&st->tsoft_lock); return (EFAULT); } ASSERT(st->tsoft_acaptr); pci_config_put32(st->tsoft_pcihdl, st->tsoft_acaptr + AGP_CONF_COMMAND, command); break; } case AGP_TARGET_FLUSH_GTLB: { uint16_t value; ASSERT(st->tsoft_acaptr); value = pci_config_get16(st->tsoft_pcihdl, st->tsoft_acaptr + AGP_CONF_CONTROL); value &= ~AGPCTRL_GTLBEN; pci_config_put16(st->tsoft_pcihdl, st->tsoft_acaptr + AGP_CONF_CONTROL, value); value |= AGPCTRL_GTLBEN; pci_config_put16(st->tsoft_pcihdl, st->tsoft_acaptr + AGP_CONF_CONTROL, value); break; } case AGP_TARGET_CONFIGURE: { uint8_t value; ASSERT(st->tsoft_acaptr); /* * In Intel agp bridges, agp misc register offset * is indexed from 0 instead of capability register. * AMD agp bridges have no such misc register * to control the aperture access, and they have * similar regsiters in CPU gart devices instead. */ if (is_intel_br(st)) { value = pci_config_get8(st->tsoft_pcihdl, st->tsoft_acaptr + AGP_CONF_MISC); value |= AGP_MISC_APEN; pci_config_put8(st->tsoft_pcihdl, st->tsoft_acaptr + AGP_CONF_MISC, value); } break; } case AGP_TARGET_UNCONFIG: { uint32_t value1; uint8_t value2; ASSERT(st->tsoft_acaptr); pci_config_put16(st->tsoft_pcihdl, st->tsoft_acaptr + AGP_CONF_CONTROL, 0x0); if (is_intel_br(st)) { value2 = pci_config_get8(st->tsoft_pcihdl, st->tsoft_acaptr + AGP_CONF_MISC); value2 &= ~AGP_MISC_APEN; pci_config_put8(st->tsoft_pcihdl, st->tsoft_acaptr + AGP_CONF_MISC, value2); } value1 = pci_config_get32(st->tsoft_pcihdl, st->tsoft_acaptr + AGP_CONF_COMMAND); value1 &= ~AGPCMD_AGPEN; pci_config_put32(st->tsoft_pcihdl, st->tsoft_acaptr + AGP_CONF_COMMAND, value1); pci_config_put32(st->tsoft_pcihdl, st->tsoft_acaptr + AGP_CONF_ATTBASE, 0x0); break; } default: mutex_exit(&st->tsoft_lock); return (ENXIO); } /* end switch */ mutex_exit(&st->tsoft_lock); return (0); } /*ARGSUSED*/ static int agp_target_open(dev_t *devp, int flag, int otyp, cred_t *cred) { int instance = DEV2INST(*devp); agp_target_softstate_t *st; if (!(flag & FKLYR)) return (ENXIO); st = GETSOFTC(instance); if (st == NULL) return (ENXIO); return (0); } /*ARGSUSED*/ static int agp_target_close(dev_t dev, int flag, int otyp, cred_t *cred) { int instance = DEV2INST(dev); agp_target_softstate_t *st; st = GETSOFTC(instance); if (st == NULL) return (ENXIO); return (0); } static struct cb_ops agp_target_cb_ops = { agp_target_open, /* cb_open */ agp_target_close, /* cb_close */ nodev, /* cb_strategy */ nodev, /* cb_print */ nodev, /* cb_dump */ nodev, /* cb_read() */ nodev, /* cb_write() */ agp_target_ioctl, /* cb_ioctl */ nodev, /* cb_devmap */ nodev, /* cb_mmap */ nodev, /* cb_segmap */ nochpoll, /* cb_chpoll */ ddi_prop_op, /* cb_prop_op */ 0, /* cb_stream */ D_NEW | D_MP, /* cb_flag */ CB_REV, /* cb_ops version? */ nodev, /* cb_aread() */ nodev, /* cb_awrite() */ }; /* device operations */ static struct dev_ops agp_target_ops = { DEVO_REV, /* devo_rev */ 0, /* devo_refcnt */ agptarget_getinfo, /* devo_getinfo */ nulldev, /* devo_identify */ nulldev, /* devo_probe */ agp_target_attach, /* devo_attach */ agp_target_detach, /* devo_detach */ nodev, /* devo_reset */ &agp_target_cb_ops, /* devo_cb_ops */ 0, /* devo_bus_ops */ 0, /* devo_power */ }; static struct modldrv modldrv = { &mod_driverops, "AGP target driver v%I%", &agp_target_ops, }; static struct modlinkage modlinkage = { MODREV_1, /* MODREV_1 is indicated by manual */ {&modldrv, NULL, NULL, NULL} }; int _init(void) { int ret; ret = ddi_soft_state_init(&agptarget_glob_soft_handle, sizeof (agp_target_softstate_t), 1); if (ret) goto err1; if ((ret = mod_install(&modlinkage)) != 0) { goto err2; } return (DDI_SUCCESS); err2: ddi_soft_state_fini(&agptarget_glob_soft_handle); err1: return (ret); } int _info(struct modinfo *modinfop) { return (mod_info(&modlinkage, modinfop)); } int _fini(void) { int ret; if ((ret = mod_remove(&modlinkage)) == 0) { ddi_soft_state_fini(&agptarget_glob_soft_handle); } return (ret); }