17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 512af71e9Sayznaga * Common Development and Distribution License (the "License"). 612af71e9Sayznaga * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 217c478bd9Sstevel@tonic-gate /* 2260946fe0Smec * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 237c478bd9Sstevel@tonic-gate * Use is subject to license terms. 247c478bd9Sstevel@tonic-gate */ 257c478bd9Sstevel@tonic-gate 267c478bd9Sstevel@tonic-gate /* 277c478bd9Sstevel@tonic-gate * Memory special file 287c478bd9Sstevel@tonic-gate */ 297c478bd9Sstevel@tonic-gate 307c478bd9Sstevel@tonic-gate #include <sys/types.h> 317c478bd9Sstevel@tonic-gate #include <sys/param.h> 327c478bd9Sstevel@tonic-gate #include <sys/user.h> 337c478bd9Sstevel@tonic-gate #include <sys/buf.h> 347c478bd9Sstevel@tonic-gate #include <sys/systm.h> 357c478bd9Sstevel@tonic-gate #include <sys/cred.h> 367c478bd9Sstevel@tonic-gate #include <sys/vm.h> 377c478bd9Sstevel@tonic-gate #include <sys/uio.h> 387c478bd9Sstevel@tonic-gate #include <sys/mman.h> 397c478bd9Sstevel@tonic-gate #include <sys/kmem.h> 407c478bd9Sstevel@tonic-gate #include <vm/seg.h> 417c478bd9Sstevel@tonic-gate #include <vm/page.h> 427c478bd9Sstevel@tonic-gate #include <sys/stat.h> 437c478bd9Sstevel@tonic-gate #include <sys/vmem.h> 447c478bd9Sstevel@tonic-gate #include <sys/memlist.h> 457c478bd9Sstevel@tonic-gate #include <sys/bootconf.h> 467c478bd9Sstevel@tonic-gate 477c478bd9Sstevel@tonic-gate #include <vm/seg_vn.h> 487c478bd9Sstevel@tonic-gate #include <vm/seg_dev.h> 497c478bd9Sstevel@tonic-gate #include <vm/seg_kmem.h> 507c478bd9Sstevel@tonic-gate #include <vm/seg_kp.h> 517c478bd9Sstevel@tonic-gate #include <vm/seg_kpm.h> 527c478bd9Sstevel@tonic-gate #include <vm/hat.h> 537c478bd9Sstevel@tonic-gate 547c478bd9Sstevel@tonic-gate #include <sys/conf.h> 557c478bd9Sstevel@tonic-gate #include <sys/mem.h> 567c478bd9Sstevel@tonic-gate #include <sys/types.h> 577c478bd9Sstevel@tonic-gate #include <sys/conf.h> 587c478bd9Sstevel@tonic-gate #include <sys/param.h> 597c478bd9Sstevel@tonic-gate #include <sys/systm.h> 607c478bd9Sstevel@tonic-gate #include <sys/errno.h> 617c478bd9Sstevel@tonic-gate #include <sys/modctl.h> 627c478bd9Sstevel@tonic-gate #include <sys/memlist.h> 637c478bd9Sstevel@tonic-gate #include <sys/ddi.h> 647c478bd9Sstevel@tonic-gate #include <sys/sunddi.h> 657c478bd9Sstevel@tonic-gate #include <sys/debug.h> 66d00f0155Sayznaga #include <sys/fm/protocol.h> 677c478bd9Sstevel@tonic-gate 687aec1d6eScindi #if defined(__sparc) 697c478bd9Sstevel@tonic-gate extern int cpu_get_mem_name(uint64_t, uint64_t *, uint64_t, char *, int, int *); 707c478bd9Sstevel@tonic-gate extern int cpu_get_mem_info(uint64_t, uint64_t, uint64_t *, uint64_t *, 717c478bd9Sstevel@tonic-gate uint64_t *, int *, int *, int *); 727c478bd9Sstevel@tonic-gate extern size_t cpu_get_name_bufsize(void); 73d00f0155Sayznaga extern int cpu_get_mem_sid(char *, char *, int, int *); 74d00f0155Sayznaga extern int cpu_get_mem_addr(char *, char *, uint64_t, uint64_t *); 75ae115bc7Smrj #elif defined(__x86) 767aec1d6eScindi #include <sys/cpu_module.h> 77d00f0155Sayznaga #endif /* __sparc */ 787c478bd9Sstevel@tonic-gate 797c478bd9Sstevel@tonic-gate /* 807c478bd9Sstevel@tonic-gate * Turn a byte length into a pagecount. The DDI btop takes a 817c478bd9Sstevel@tonic-gate * 32-bit size on 32-bit machines, this handles 64-bit sizes for 827c478bd9Sstevel@tonic-gate * large physical-memory 32-bit machines. 837c478bd9Sstevel@tonic-gate */ 847c478bd9Sstevel@tonic-gate #define BTOP(x) ((pgcnt_t)((x) >> _pageshift)) 857c478bd9Sstevel@tonic-gate 867c478bd9Sstevel@tonic-gate static kmutex_t mm_lock; 877c478bd9Sstevel@tonic-gate static caddr_t mm_map; 887c478bd9Sstevel@tonic-gate 897c478bd9Sstevel@tonic-gate static dev_info_t *mm_dip; /* private copy of devinfo pointer */ 907c478bd9Sstevel@tonic-gate 917c478bd9Sstevel@tonic-gate static int mm_kmem_io_access; 927c478bd9Sstevel@tonic-gate 937c478bd9Sstevel@tonic-gate static int mm_kstat_update(kstat_t *ksp, int rw); 947c478bd9Sstevel@tonic-gate static int mm_kstat_snapshot(kstat_t *ksp, void *buf, int rw); 957c478bd9Sstevel@tonic-gate 96d00f0155Sayznaga static int mm_read_mem_name(intptr_t data, mem_name_t *mem_name); 97d00f0155Sayznaga 987c478bd9Sstevel@tonic-gate /*ARGSUSED1*/ 997c478bd9Sstevel@tonic-gate static int 1007c478bd9Sstevel@tonic-gate mm_attach(dev_info_t *devi, ddi_attach_cmd_t cmd) 1017c478bd9Sstevel@tonic-gate { 1027c478bd9Sstevel@tonic-gate int i; 1037c478bd9Sstevel@tonic-gate struct mem_minor { 1047c478bd9Sstevel@tonic-gate char *name; 1057c478bd9Sstevel@tonic-gate minor_t minor; 1067c478bd9Sstevel@tonic-gate int privonly; 1077c478bd9Sstevel@tonic-gate const char *rdpriv; 1087c478bd9Sstevel@tonic-gate const char *wrpriv; 1097c478bd9Sstevel@tonic-gate mode_t priv_mode; 1107c478bd9Sstevel@tonic-gate } mm[] = { 1117c478bd9Sstevel@tonic-gate { "mem", M_MEM, 0, NULL, "all", 0640 }, 1127c478bd9Sstevel@tonic-gate { "kmem", M_KMEM, 0, NULL, "all", 0640 }, 1137c478bd9Sstevel@tonic-gate { "allkmem", M_ALLKMEM, 0, "all", "all", 0600 }, 1147c478bd9Sstevel@tonic-gate { "null", M_NULL, PRIVONLY_DEV, NULL, NULL, 0666 }, 1157c478bd9Sstevel@tonic-gate { "zero", M_ZERO, PRIVONLY_DEV, NULL, NULL, 0666 }, 1167c478bd9Sstevel@tonic-gate }; 1177c478bd9Sstevel@tonic-gate kstat_t *ksp; 1187c478bd9Sstevel@tonic-gate 1197c478bd9Sstevel@tonic-gate mutex_init(&mm_lock, NULL, MUTEX_DEFAULT, NULL); 1207c478bd9Sstevel@tonic-gate mm_map = vmem_alloc(heap_arena, PAGESIZE, VM_SLEEP); 1217c478bd9Sstevel@tonic-gate 1227c478bd9Sstevel@tonic-gate for (i = 0; i < (sizeof (mm) / sizeof (mm[0])); i++) { 1237c478bd9Sstevel@tonic-gate if (ddi_create_priv_minor_node(devi, mm[i].name, S_IFCHR, 1247c478bd9Sstevel@tonic-gate mm[i].minor, DDI_PSEUDO, mm[i].privonly, 1257c478bd9Sstevel@tonic-gate mm[i].rdpriv, mm[i].wrpriv, mm[i].priv_mode) == 1267c478bd9Sstevel@tonic-gate DDI_FAILURE) { 1277c478bd9Sstevel@tonic-gate ddi_remove_minor_node(devi, NULL); 1287c478bd9Sstevel@tonic-gate return (DDI_FAILURE); 1297c478bd9Sstevel@tonic-gate } 1307c478bd9Sstevel@tonic-gate } 1317c478bd9Sstevel@tonic-gate 1327c478bd9Sstevel@tonic-gate mm_dip = devi; 1337c478bd9Sstevel@tonic-gate 1347c478bd9Sstevel@tonic-gate ksp = kstat_create("mm", 0, "phys_installed", "misc", 1357c478bd9Sstevel@tonic-gate KSTAT_TYPE_RAW, 0, KSTAT_FLAG_VAR_SIZE | KSTAT_FLAG_VIRTUAL); 1367c478bd9Sstevel@tonic-gate if (ksp != NULL) { 1377c478bd9Sstevel@tonic-gate ksp->ks_update = mm_kstat_update; 1387c478bd9Sstevel@tonic-gate ksp->ks_snapshot = mm_kstat_snapshot; 1397c478bd9Sstevel@tonic-gate ksp->ks_lock = &mm_lock; /* XXX - not really needed */ 1407c478bd9Sstevel@tonic-gate kstat_install(ksp); 1417c478bd9Sstevel@tonic-gate } 1427c478bd9Sstevel@tonic-gate 1437c478bd9Sstevel@tonic-gate mm_kmem_io_access = ddi_getprop(DDI_DEV_T_ANY, devi, DDI_PROP_DONTPASS, 1447c478bd9Sstevel@tonic-gate "kmem_io_access", 0); 1457c478bd9Sstevel@tonic-gate 1467c478bd9Sstevel@tonic-gate return (DDI_SUCCESS); 1477c478bd9Sstevel@tonic-gate } 1487c478bd9Sstevel@tonic-gate 1497c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 1507c478bd9Sstevel@tonic-gate static int 1517c478bd9Sstevel@tonic-gate mm_info(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, void **result) 1527c478bd9Sstevel@tonic-gate { 1537c478bd9Sstevel@tonic-gate register int error; 1547c478bd9Sstevel@tonic-gate 1557c478bd9Sstevel@tonic-gate switch (infocmd) { 1567c478bd9Sstevel@tonic-gate case DDI_INFO_DEVT2DEVINFO: 1577c478bd9Sstevel@tonic-gate *result = (void *)mm_dip; 1587c478bd9Sstevel@tonic-gate error = DDI_SUCCESS; 1597c478bd9Sstevel@tonic-gate break; 1607c478bd9Sstevel@tonic-gate case DDI_INFO_DEVT2INSTANCE: 1617c478bd9Sstevel@tonic-gate *result = (void *)0; 1627c478bd9Sstevel@tonic-gate error = DDI_SUCCESS; 1637c478bd9Sstevel@tonic-gate break; 1647c478bd9Sstevel@tonic-gate default: 1657c478bd9Sstevel@tonic-gate error = DDI_FAILURE; 1667c478bd9Sstevel@tonic-gate } 1677c478bd9Sstevel@tonic-gate return (error); 1687c478bd9Sstevel@tonic-gate } 1697c478bd9Sstevel@tonic-gate 1707c478bd9Sstevel@tonic-gate /*ARGSUSED1*/ 1717c478bd9Sstevel@tonic-gate static int 1727c478bd9Sstevel@tonic-gate mmopen(dev_t *devp, int flag, int typ, struct cred *cred) 1737c478bd9Sstevel@tonic-gate { 1747c478bd9Sstevel@tonic-gate switch (getminor(*devp)) { 1757c478bd9Sstevel@tonic-gate case M_NULL: 1767c478bd9Sstevel@tonic-gate case M_ZERO: 1777c478bd9Sstevel@tonic-gate case M_MEM: 1787c478bd9Sstevel@tonic-gate case M_KMEM: 1797c478bd9Sstevel@tonic-gate case M_ALLKMEM: 1807c478bd9Sstevel@tonic-gate /* standard devices */ 1817c478bd9Sstevel@tonic-gate break; 1827c478bd9Sstevel@tonic-gate 1837c478bd9Sstevel@tonic-gate default: 1847c478bd9Sstevel@tonic-gate /* Unsupported or unknown type */ 1857c478bd9Sstevel@tonic-gate return (EINVAL); 1867c478bd9Sstevel@tonic-gate } 1874f7df455Scth /* must be character device */ 1884f7df455Scth if (typ != OTYP_CHR) 1894f7df455Scth return (EINVAL); 1907c478bd9Sstevel@tonic-gate return (0); 1917c478bd9Sstevel@tonic-gate } 1927c478bd9Sstevel@tonic-gate 1937c478bd9Sstevel@tonic-gate struct pollhead mm_pollhd; 1947c478bd9Sstevel@tonic-gate 1957c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 1967c478bd9Sstevel@tonic-gate static int 1977c478bd9Sstevel@tonic-gate mmchpoll(dev_t dev, short events, int anyyet, short *reventsp, 1987c478bd9Sstevel@tonic-gate struct pollhead **phpp) 1997c478bd9Sstevel@tonic-gate { 2007c478bd9Sstevel@tonic-gate switch (getminor(dev)) { 2017c478bd9Sstevel@tonic-gate case M_NULL: 2027c478bd9Sstevel@tonic-gate case M_ZERO: 2037c478bd9Sstevel@tonic-gate case M_MEM: 2047c478bd9Sstevel@tonic-gate case M_KMEM: 2057c478bd9Sstevel@tonic-gate case M_ALLKMEM: 2067c478bd9Sstevel@tonic-gate *reventsp = events & (POLLIN | POLLOUT | POLLPRI | POLLRDNORM | 2077c478bd9Sstevel@tonic-gate POLLWRNORM | POLLRDBAND | POLLWRBAND); 2087c478bd9Sstevel@tonic-gate /* 2097c478bd9Sstevel@tonic-gate * A non NULL pollhead pointer should be returned in case 2107c478bd9Sstevel@tonic-gate * user polls for 0 events. 2117c478bd9Sstevel@tonic-gate */ 2127c478bd9Sstevel@tonic-gate *phpp = !anyyet && !*reventsp ? 2137c478bd9Sstevel@tonic-gate &mm_pollhd : (struct pollhead *)NULL; 2147c478bd9Sstevel@tonic-gate return (0); 2157c478bd9Sstevel@tonic-gate default: 2167c478bd9Sstevel@tonic-gate /* no other devices currently support polling */ 2177c478bd9Sstevel@tonic-gate return (ENXIO); 2187c478bd9Sstevel@tonic-gate } 2197c478bd9Sstevel@tonic-gate } 2207c478bd9Sstevel@tonic-gate 2217c478bd9Sstevel@tonic-gate static int 2227c478bd9Sstevel@tonic-gate mmpropop(dev_t dev, dev_info_t *dip, ddi_prop_op_t prop_op, int flags, 2237c478bd9Sstevel@tonic-gate char *name, caddr_t valuep, int *lengthp) 2247c478bd9Sstevel@tonic-gate { 2257c478bd9Sstevel@tonic-gate /* 2267c478bd9Sstevel@tonic-gate * implement zero size to reduce overhead (avoid two failing 2277c478bd9Sstevel@tonic-gate * property lookups per stat). 2287c478bd9Sstevel@tonic-gate */ 2297c478bd9Sstevel@tonic-gate return (ddi_prop_op_size(dev, dip, prop_op, 2307c478bd9Sstevel@tonic-gate flags, name, valuep, lengthp, 0)); 2317c478bd9Sstevel@tonic-gate } 2327c478bd9Sstevel@tonic-gate 2337c478bd9Sstevel@tonic-gate static int 2347c478bd9Sstevel@tonic-gate mmio(struct uio *uio, enum uio_rw rw, pfn_t pfn, off_t pageoff, int allowio) 2357c478bd9Sstevel@tonic-gate { 2367c478bd9Sstevel@tonic-gate int error = 0; 2377c478bd9Sstevel@tonic-gate size_t nbytes = MIN((size_t)(PAGESIZE - pageoff), 2387c478bd9Sstevel@tonic-gate (size_t)uio->uio_iov->iov_len); 2397c478bd9Sstevel@tonic-gate 2407c478bd9Sstevel@tonic-gate mutex_enter(&mm_lock); 2417c478bd9Sstevel@tonic-gate hat_devload(kas.a_hat, mm_map, PAGESIZE, pfn, 2427c478bd9Sstevel@tonic-gate (uint_t)(rw == UIO_READ ? PROT_READ : PROT_READ | PROT_WRITE), 2437c478bd9Sstevel@tonic-gate HAT_LOAD_NOCONSIST | HAT_LOAD_LOCK); 2447c478bd9Sstevel@tonic-gate 2457c478bd9Sstevel@tonic-gate if (!pf_is_memory(pfn)) { 2467c478bd9Sstevel@tonic-gate if (allowio) { 2477c478bd9Sstevel@tonic-gate size_t c = uio->uio_iov->iov_len; 2487c478bd9Sstevel@tonic-gate 2497c478bd9Sstevel@tonic-gate if (ddi_peekpokeio(NULL, uio, rw, 2507c478bd9Sstevel@tonic-gate (caddr_t)(uintptr_t)uio->uio_loffset, c, 2517c478bd9Sstevel@tonic-gate sizeof (int32_t)) != DDI_SUCCESS) 2527c478bd9Sstevel@tonic-gate error = EFAULT; 2537c478bd9Sstevel@tonic-gate } else 2547c478bd9Sstevel@tonic-gate error = EIO; 2557c478bd9Sstevel@tonic-gate } else 2567c478bd9Sstevel@tonic-gate error = uiomove(&mm_map[pageoff], nbytes, rw, uio); 2577c478bd9Sstevel@tonic-gate 2587c478bd9Sstevel@tonic-gate hat_unload(kas.a_hat, mm_map, PAGESIZE, HAT_UNLOAD_UNLOCK); 2597c478bd9Sstevel@tonic-gate mutex_exit(&mm_lock); 2607c478bd9Sstevel@tonic-gate return (error); 2617c478bd9Sstevel@tonic-gate } 2627c478bd9Sstevel@tonic-gate 2631bd5c35fSelowe static int 2641bd5c35fSelowe mmpagelock(struct as *as, caddr_t va) 2651bd5c35fSelowe { 2661bd5c35fSelowe struct seg *seg; 2671bd5c35fSelowe int i; 2681bd5c35fSelowe 2691bd5c35fSelowe AS_LOCK_ENTER(as, &as->a_lock, RW_READER); 2701bd5c35fSelowe seg = as_segat(as, va); 2711bd5c35fSelowe i = (seg != NULL)? SEGOP_CAPABLE(seg, S_CAPABILITY_NOMINFLT) : 0; 2721bd5c35fSelowe AS_LOCK_EXIT(as, &as->a_lock); 2731bd5c35fSelowe 2741bd5c35fSelowe return (i); 2751bd5c35fSelowe } 2761bd5c35fSelowe 277843e1988Sjohnlev #ifdef __sparc 278843e1988Sjohnlev 2791bd5c35fSelowe #define NEED_LOCK_KVADDR(kva) mmpagelock(&kas, kva) 2807c478bd9Sstevel@tonic-gate 2817c478bd9Sstevel@tonic-gate #else /* __i386, __amd64 */ 2827c478bd9Sstevel@tonic-gate 2837c478bd9Sstevel@tonic-gate #define NEED_LOCK_KVADDR(va) 0 2847c478bd9Sstevel@tonic-gate 2857c478bd9Sstevel@tonic-gate #endif /* __sparc */ 2867c478bd9Sstevel@tonic-gate 2877c478bd9Sstevel@tonic-gate /*ARGSUSED3*/ 2887c478bd9Sstevel@tonic-gate static int 2897c478bd9Sstevel@tonic-gate mmrw(dev_t dev, struct uio *uio, enum uio_rw rw, cred_t *cred) 2907c478bd9Sstevel@tonic-gate { 2917c478bd9Sstevel@tonic-gate pfn_t v; 2927c478bd9Sstevel@tonic-gate struct iovec *iov; 2937c478bd9Sstevel@tonic-gate int error = 0; 2947c478bd9Sstevel@tonic-gate size_t c; 2957c478bd9Sstevel@tonic-gate ssize_t oresid = uio->uio_resid; 2967c478bd9Sstevel@tonic-gate minor_t minor = getminor(dev); 2977c478bd9Sstevel@tonic-gate 2987c478bd9Sstevel@tonic-gate while (uio->uio_resid > 0 && error == 0) { 2997c478bd9Sstevel@tonic-gate iov = uio->uio_iov; 3007c478bd9Sstevel@tonic-gate if (iov->iov_len == 0) { 3017c478bd9Sstevel@tonic-gate uio->uio_iov++; 3027c478bd9Sstevel@tonic-gate uio->uio_iovcnt--; 3037c478bd9Sstevel@tonic-gate if (uio->uio_iovcnt < 0) 3047c478bd9Sstevel@tonic-gate panic("mmrw"); 3057c478bd9Sstevel@tonic-gate continue; 3067c478bd9Sstevel@tonic-gate } 3077c478bd9Sstevel@tonic-gate switch (minor) { 3087c478bd9Sstevel@tonic-gate 3097c478bd9Sstevel@tonic-gate case M_MEM: 3107c478bd9Sstevel@tonic-gate memlist_read_lock(); 3117c478bd9Sstevel@tonic-gate if (!address_in_memlist(phys_install, 3127c478bd9Sstevel@tonic-gate (uint64_t)uio->uio_loffset, 1)) { 3137c478bd9Sstevel@tonic-gate memlist_read_unlock(); 3147c478bd9Sstevel@tonic-gate error = EFAULT; 3157c478bd9Sstevel@tonic-gate break; 3167c478bd9Sstevel@tonic-gate } 3177c478bd9Sstevel@tonic-gate memlist_read_unlock(); 3187c478bd9Sstevel@tonic-gate 3197c478bd9Sstevel@tonic-gate v = BTOP((u_offset_t)uio->uio_loffset); 3207c478bd9Sstevel@tonic-gate error = mmio(uio, rw, v, 3217c478bd9Sstevel@tonic-gate uio->uio_loffset & PAGEOFFSET, 0); 3227c478bd9Sstevel@tonic-gate break; 3237c478bd9Sstevel@tonic-gate 3247c478bd9Sstevel@tonic-gate case M_KMEM: 3257c478bd9Sstevel@tonic-gate case M_ALLKMEM: 3267c478bd9Sstevel@tonic-gate { 3277c478bd9Sstevel@tonic-gate page_t **ppp; 3287c478bd9Sstevel@tonic-gate caddr_t vaddr = (caddr_t)uio->uio_offset; 3297c478bd9Sstevel@tonic-gate int try_lock = NEED_LOCK_KVADDR(vaddr); 3307c478bd9Sstevel@tonic-gate int locked = 0; 3317c478bd9Sstevel@tonic-gate 332843e1988Sjohnlev if ((error = plat_mem_do_mmio(uio, rw)) != ENOTSUP) 333ae115bc7Smrj break; 334ae115bc7Smrj 3357c478bd9Sstevel@tonic-gate /* 3367c478bd9Sstevel@tonic-gate * If vaddr does not map a valid page, as_pagelock() 3377c478bd9Sstevel@tonic-gate * will return failure. Hence we can't check the 3387c478bd9Sstevel@tonic-gate * return value and return EFAULT here as we'd like. 3397c478bd9Sstevel@tonic-gate * seg_kp and seg_kpm do not properly support 3407c478bd9Sstevel@tonic-gate * as_pagelock() for this context so we avoid it 3417c478bd9Sstevel@tonic-gate * using the try_lock set check above. Some day when 3427c478bd9Sstevel@tonic-gate * the kernel page locking gets redesigned all this 3437c478bd9Sstevel@tonic-gate * muck can be cleaned up. 3447c478bd9Sstevel@tonic-gate */ 3457c478bd9Sstevel@tonic-gate if (try_lock) 3467c478bd9Sstevel@tonic-gate locked = (as_pagelock(&kas, &ppp, vaddr, 3477c478bd9Sstevel@tonic-gate PAGESIZE, S_WRITE) == 0); 3487c478bd9Sstevel@tonic-gate 349e42d2a1cSjongkis v = hat_getpfnum(kas.a_hat, 350e42d2a1cSjongkis (caddr_t)(uintptr_t)uio->uio_loffset); 3517c478bd9Sstevel@tonic-gate if (v == PFN_INVALID) { 3527c478bd9Sstevel@tonic-gate if (locked) 3537c478bd9Sstevel@tonic-gate as_pageunlock(&kas, ppp, vaddr, 3547c478bd9Sstevel@tonic-gate PAGESIZE, S_WRITE); 3557c478bd9Sstevel@tonic-gate error = EFAULT; 3567c478bd9Sstevel@tonic-gate break; 3577c478bd9Sstevel@tonic-gate } 3587c478bd9Sstevel@tonic-gate 3597c478bd9Sstevel@tonic-gate error = mmio(uio, rw, v, uio->uio_loffset & PAGEOFFSET, 3607c478bd9Sstevel@tonic-gate minor == M_ALLKMEM || mm_kmem_io_access); 3617c478bd9Sstevel@tonic-gate if (locked) 3627c478bd9Sstevel@tonic-gate as_pageunlock(&kas, ppp, vaddr, PAGESIZE, 3637c478bd9Sstevel@tonic-gate S_WRITE); 3647c478bd9Sstevel@tonic-gate } 3657c478bd9Sstevel@tonic-gate 3667c478bd9Sstevel@tonic-gate break; 3677c478bd9Sstevel@tonic-gate 3687c478bd9Sstevel@tonic-gate case M_ZERO: 3697c478bd9Sstevel@tonic-gate if (rw == UIO_READ) { 3707c478bd9Sstevel@tonic-gate label_t ljb; 3717c478bd9Sstevel@tonic-gate 3727c478bd9Sstevel@tonic-gate if (on_fault(&ljb)) { 3737c478bd9Sstevel@tonic-gate no_fault(); 3747c478bd9Sstevel@tonic-gate error = EFAULT; 3757c478bd9Sstevel@tonic-gate break; 3767c478bd9Sstevel@tonic-gate } 3777c478bd9Sstevel@tonic-gate uzero(iov->iov_base, iov->iov_len); 3787c478bd9Sstevel@tonic-gate no_fault(); 3797c478bd9Sstevel@tonic-gate uio->uio_resid -= iov->iov_len; 3807c478bd9Sstevel@tonic-gate uio->uio_loffset += iov->iov_len; 3817c478bd9Sstevel@tonic-gate break; 3827c478bd9Sstevel@tonic-gate } 3837c478bd9Sstevel@tonic-gate /* else it's a write, fall through to NULL case */ 3847c478bd9Sstevel@tonic-gate /*FALLTHROUGH*/ 3857c478bd9Sstevel@tonic-gate 3867c478bd9Sstevel@tonic-gate case M_NULL: 3877c478bd9Sstevel@tonic-gate if (rw == UIO_READ) 3887c478bd9Sstevel@tonic-gate return (0); 3897c478bd9Sstevel@tonic-gate c = iov->iov_len; 3907c478bd9Sstevel@tonic-gate iov->iov_base += c; 3917c478bd9Sstevel@tonic-gate iov->iov_len -= c; 3927c478bd9Sstevel@tonic-gate uio->uio_loffset += c; 3937c478bd9Sstevel@tonic-gate uio->uio_resid -= c; 3947c478bd9Sstevel@tonic-gate break; 3957c478bd9Sstevel@tonic-gate 3967c478bd9Sstevel@tonic-gate } 3977c478bd9Sstevel@tonic-gate } 3987c478bd9Sstevel@tonic-gate return (uio->uio_resid == oresid ? error : 0); 3997c478bd9Sstevel@tonic-gate } 4007c478bd9Sstevel@tonic-gate 4017c478bd9Sstevel@tonic-gate static int 4027c478bd9Sstevel@tonic-gate mmread(dev_t dev, struct uio *uio, cred_t *cred) 4037c478bd9Sstevel@tonic-gate { 4047c478bd9Sstevel@tonic-gate return (mmrw(dev, uio, UIO_READ, cred)); 4057c478bd9Sstevel@tonic-gate } 4067c478bd9Sstevel@tonic-gate 4077c478bd9Sstevel@tonic-gate static int 4087c478bd9Sstevel@tonic-gate mmwrite(dev_t dev, struct uio *uio, cred_t *cred) 4097c478bd9Sstevel@tonic-gate { 4107c478bd9Sstevel@tonic-gate return (mmrw(dev, uio, UIO_WRITE, cred)); 4117c478bd9Sstevel@tonic-gate } 4127c478bd9Sstevel@tonic-gate 4137c478bd9Sstevel@tonic-gate /* 4147c478bd9Sstevel@tonic-gate * Private ioctl for libkvm to support kvm_physaddr(). 4157c478bd9Sstevel@tonic-gate * Given an address space and a VA, compute the PA. 4167c478bd9Sstevel@tonic-gate */ 4177c478bd9Sstevel@tonic-gate static int 4187c478bd9Sstevel@tonic-gate mmioctl_vtop(intptr_t data) 4197c478bd9Sstevel@tonic-gate { 4207aec1d6eScindi #ifdef _SYSCALL32 4217aec1d6eScindi mem_vtop32_t vtop32; 4227aec1d6eScindi #endif 4237c478bd9Sstevel@tonic-gate mem_vtop_t mem_vtop; 4247c478bd9Sstevel@tonic-gate proc_t *p; 4257c478bd9Sstevel@tonic-gate pfn_t pfn = (pfn_t)PFN_INVALID; 4267c478bd9Sstevel@tonic-gate pid_t pid = 0; 4277c478bd9Sstevel@tonic-gate struct as *as; 4287c478bd9Sstevel@tonic-gate struct seg *seg; 4297c478bd9Sstevel@tonic-gate 4307aec1d6eScindi if (get_udatamodel() == DATAMODEL_NATIVE) { 4317c478bd9Sstevel@tonic-gate if (copyin((void *)data, &mem_vtop, sizeof (mem_vtop_t))) 4327c478bd9Sstevel@tonic-gate return (EFAULT); 4337aec1d6eScindi } 4347aec1d6eScindi #ifdef _SYSCALL32 4357aec1d6eScindi else { 4367aec1d6eScindi if (copyin((void *)data, &vtop32, sizeof (mem_vtop32_t))) 4377aec1d6eScindi return (EFAULT); 43880ab886dSwesolows mem_vtop.m_as = (struct as *)(uintptr_t)vtop32.m_as; 43980ab886dSwesolows mem_vtop.m_va = (void *)(uintptr_t)vtop32.m_va; 4407aec1d6eScindi 4417aec1d6eScindi if (mem_vtop.m_as != NULL) 4427aec1d6eScindi return (EINVAL); 4437aec1d6eScindi } 4447aec1d6eScindi #endif 4457aec1d6eScindi 4467c478bd9Sstevel@tonic-gate if (mem_vtop.m_as == &kas) { 4477c478bd9Sstevel@tonic-gate pfn = hat_getpfnum(kas.a_hat, mem_vtop.m_va); 4487c478bd9Sstevel@tonic-gate } else { 4497aec1d6eScindi if (mem_vtop.m_as == NULL) { 4507aec1d6eScindi /* 4517aec1d6eScindi * Assume the calling process's address space if the 4527aec1d6eScindi * caller didn't specify one. 4537aec1d6eScindi */ 4547aec1d6eScindi p = curthread->t_procp; 4557aec1d6eScindi if (p == NULL) 4567aec1d6eScindi return (EIO); 4577aec1d6eScindi mem_vtop.m_as = p->p_as; 4587aec1d6eScindi } 4597aec1d6eScindi 4607c478bd9Sstevel@tonic-gate mutex_enter(&pidlock); 4617c478bd9Sstevel@tonic-gate for (p = practive; p != NULL; p = p->p_next) { 4627c478bd9Sstevel@tonic-gate if (p->p_as == mem_vtop.m_as) { 4637c478bd9Sstevel@tonic-gate pid = p->p_pid; 4647c478bd9Sstevel@tonic-gate break; 4657c478bd9Sstevel@tonic-gate } 4667c478bd9Sstevel@tonic-gate } 4677c478bd9Sstevel@tonic-gate mutex_exit(&pidlock); 4687c478bd9Sstevel@tonic-gate if (p == NULL) 4697c478bd9Sstevel@tonic-gate return (EIO); 4707c478bd9Sstevel@tonic-gate p = sprlock(pid); 4717c478bd9Sstevel@tonic-gate if (p == NULL) 4727c478bd9Sstevel@tonic-gate return (EIO); 4737c478bd9Sstevel@tonic-gate as = p->p_as; 4747c478bd9Sstevel@tonic-gate if (as == mem_vtop.m_as) { 4757c478bd9Sstevel@tonic-gate mutex_exit(&p->p_lock); 4767c478bd9Sstevel@tonic-gate AS_LOCK_ENTER(as, &as->a_lock, RW_READER); 4777c478bd9Sstevel@tonic-gate for (seg = AS_SEGFIRST(as); seg != NULL; 4787c478bd9Sstevel@tonic-gate seg = AS_SEGNEXT(as, seg)) 4797c478bd9Sstevel@tonic-gate if ((uintptr_t)mem_vtop.m_va - 4807c478bd9Sstevel@tonic-gate (uintptr_t)seg->s_base < seg->s_size) 4817c478bd9Sstevel@tonic-gate break; 4827c478bd9Sstevel@tonic-gate if (seg != NULL) 4837c478bd9Sstevel@tonic-gate pfn = hat_getpfnum(as->a_hat, mem_vtop.m_va); 4847c478bd9Sstevel@tonic-gate AS_LOCK_EXIT(as, &as->a_lock); 4857c478bd9Sstevel@tonic-gate mutex_enter(&p->p_lock); 4867c478bd9Sstevel@tonic-gate } 4877c478bd9Sstevel@tonic-gate sprunlock(p); 4887c478bd9Sstevel@tonic-gate } 4897c478bd9Sstevel@tonic-gate mem_vtop.m_pfn = pfn; 4907c478bd9Sstevel@tonic-gate if (pfn == PFN_INVALID) 4917c478bd9Sstevel@tonic-gate return (EIO); 4927aec1d6eScindi 4937aec1d6eScindi if (get_udatamodel() == DATAMODEL_NATIVE) { 4947c478bd9Sstevel@tonic-gate if (copyout(&mem_vtop, (void *)data, sizeof (mem_vtop_t))) 4957c478bd9Sstevel@tonic-gate return (EFAULT); 4967aec1d6eScindi } 4977aec1d6eScindi #ifdef _SYSCALL32 4987aec1d6eScindi else { 4997aec1d6eScindi vtop32.m_pfn = mem_vtop.m_pfn; 5007aec1d6eScindi if (copyout(&vtop32, (void *)data, sizeof (mem_vtop32_t))) 5017aec1d6eScindi return (EFAULT); 5027aec1d6eScindi } 5037aec1d6eScindi #endif 5047c478bd9Sstevel@tonic-gate 5057c478bd9Sstevel@tonic-gate return (0); 5067c478bd9Sstevel@tonic-gate } 5077c478bd9Sstevel@tonic-gate 5087c478bd9Sstevel@tonic-gate /* 509db874c57Selowe * Given a PA, execute the given page retire command on it. 5107c478bd9Sstevel@tonic-gate */ 5117c478bd9Sstevel@tonic-gate static int 5127c478bd9Sstevel@tonic-gate mmioctl_page_retire(int cmd, intptr_t data) 5137c478bd9Sstevel@tonic-gate { 514db874c57Selowe extern int page_retire_test(void); 5157c478bd9Sstevel@tonic-gate uint64_t pa; 5167c478bd9Sstevel@tonic-gate 517db874c57Selowe if (copyin((void *)data, &pa, sizeof (uint64_t))) { 5187c478bd9Sstevel@tonic-gate return (EFAULT); 5197c478bd9Sstevel@tonic-gate } 5207c478bd9Sstevel@tonic-gate 521db874c57Selowe switch (cmd) { 522db874c57Selowe case MEM_PAGE_ISRETIRED: 523db874c57Selowe return (page_retire_check(pa, NULL)); 5247c478bd9Sstevel@tonic-gate 525db874c57Selowe case MEM_PAGE_UNRETIRE: 526db874c57Selowe return (page_unretire(pa)); 527db874c57Selowe 528db874c57Selowe case MEM_PAGE_RETIRE: 529db874c57Selowe return (page_retire(pa, PR_FMA)); 530db874c57Selowe 531db874c57Selowe case MEM_PAGE_RETIRE_MCE: 532db874c57Selowe return (page_retire(pa, PR_MCE)); 533db874c57Selowe 534db874c57Selowe case MEM_PAGE_RETIRE_UE: 535db874c57Selowe return (page_retire(pa, PR_UE)); 536db874c57Selowe 537db874c57Selowe case MEM_PAGE_GETERRORS: 538db874c57Selowe { 539db874c57Selowe uint64_t page_errors; 540db874c57Selowe int rc = page_retire_check(pa, &page_errors); 541db874c57Selowe if (copyout(&page_errors, (void *)data, 542db874c57Selowe sizeof (uint64_t))) { 543db874c57Selowe return (EFAULT); 544db874c57Selowe } 545db874c57Selowe return (rc); 546db874c57Selowe } 547db874c57Selowe 548db874c57Selowe case MEM_PAGE_RETIRE_TEST: 549db874c57Selowe return (page_retire_test()); 550db874c57Selowe 551db874c57Selowe } 552db874c57Selowe 553db874c57Selowe return (EINVAL); 5547c478bd9Sstevel@tonic-gate } 5557c478bd9Sstevel@tonic-gate 5567c478bd9Sstevel@tonic-gate #ifdef __sparc 5577c478bd9Sstevel@tonic-gate /* 5587c478bd9Sstevel@tonic-gate * Given a syndrome, syndrome type, and address return the 5597c478bd9Sstevel@tonic-gate * associated memory name in the provided data buffer. 5607c478bd9Sstevel@tonic-gate */ 5617c478bd9Sstevel@tonic-gate static int 5627c478bd9Sstevel@tonic-gate mmioctl_get_mem_name(intptr_t data) 5637c478bd9Sstevel@tonic-gate { 5647c478bd9Sstevel@tonic-gate mem_name_t mem_name; 5657c478bd9Sstevel@tonic-gate void *buf; 5667c478bd9Sstevel@tonic-gate size_t bufsize; 5677c478bd9Sstevel@tonic-gate int len, err; 5687c478bd9Sstevel@tonic-gate 5697c478bd9Sstevel@tonic-gate if ((bufsize = cpu_get_name_bufsize()) == 0) 5707c478bd9Sstevel@tonic-gate return (ENOTSUP); 5717c478bd9Sstevel@tonic-gate 572d00f0155Sayznaga if ((err = mm_read_mem_name(data, &mem_name)) < 0) 573d00f0155Sayznaga return (err); 5747c478bd9Sstevel@tonic-gate 5757c478bd9Sstevel@tonic-gate buf = kmem_alloc(bufsize, KM_SLEEP); 5767c478bd9Sstevel@tonic-gate 5777c478bd9Sstevel@tonic-gate /* 5787c478bd9Sstevel@tonic-gate * Call into cpu specific code to do the lookup. 5797c478bd9Sstevel@tonic-gate */ 5807c478bd9Sstevel@tonic-gate if ((err = cpu_get_mem_name(mem_name.m_synd, mem_name.m_type, 5817c478bd9Sstevel@tonic-gate mem_name.m_addr, buf, bufsize, &len)) != 0) { 5827c478bd9Sstevel@tonic-gate kmem_free(buf, bufsize); 5837c478bd9Sstevel@tonic-gate return (err); 5847c478bd9Sstevel@tonic-gate } 5857c478bd9Sstevel@tonic-gate 5867c478bd9Sstevel@tonic-gate if (len >= mem_name.m_namelen) { 5877c478bd9Sstevel@tonic-gate kmem_free(buf, bufsize); 5886684e119Spothier return (ENOSPC); 5897c478bd9Sstevel@tonic-gate } 5907c478bd9Sstevel@tonic-gate 5917c478bd9Sstevel@tonic-gate if (copyoutstr(buf, (char *)mem_name.m_name, 5927c478bd9Sstevel@tonic-gate mem_name.m_namelen, NULL) != 0) { 5937c478bd9Sstevel@tonic-gate kmem_free(buf, bufsize); 5947c478bd9Sstevel@tonic-gate return (EFAULT); 5957c478bd9Sstevel@tonic-gate } 5967c478bd9Sstevel@tonic-gate 5977c478bd9Sstevel@tonic-gate kmem_free(buf, bufsize); 5987c478bd9Sstevel@tonic-gate return (0); 5997c478bd9Sstevel@tonic-gate } 6007c478bd9Sstevel@tonic-gate 6017c478bd9Sstevel@tonic-gate /* 6027c478bd9Sstevel@tonic-gate * Given a syndrome and address return information about the associated memory. 6037c478bd9Sstevel@tonic-gate */ 6047c478bd9Sstevel@tonic-gate static int 6057c478bd9Sstevel@tonic-gate mmioctl_get_mem_info(intptr_t data) 6067c478bd9Sstevel@tonic-gate { 6077c478bd9Sstevel@tonic-gate mem_info_t mem_info; 6087c478bd9Sstevel@tonic-gate int err; 6097c478bd9Sstevel@tonic-gate 6107c478bd9Sstevel@tonic-gate if (copyin((void *)data, &mem_info, sizeof (mem_info_t))) 6117c478bd9Sstevel@tonic-gate return (EFAULT); 6127c478bd9Sstevel@tonic-gate 6137c478bd9Sstevel@tonic-gate if ((err = cpu_get_mem_info(mem_info.m_synd, mem_info.m_addr, 6147c478bd9Sstevel@tonic-gate &mem_info.m_mem_size, &mem_info.m_seg_size, &mem_info.m_bank_size, 6157c478bd9Sstevel@tonic-gate &mem_info.m_segments, &mem_info.m_banks, &mem_info.m_mcid)) != 0) 6167c478bd9Sstevel@tonic-gate return (err); 6177c478bd9Sstevel@tonic-gate 6187c478bd9Sstevel@tonic-gate if (copyout(&mem_info, (void *)data, sizeof (mem_info_t)) != 0) 6197c478bd9Sstevel@tonic-gate return (EFAULT); 6207c478bd9Sstevel@tonic-gate 6217c478bd9Sstevel@tonic-gate return (0); 6227c478bd9Sstevel@tonic-gate } 623d00f0155Sayznaga 624d00f0155Sayznaga /* 625d00f0155Sayznaga * Given a memory name, return its associated serial id 626d00f0155Sayznaga */ 627d00f0155Sayznaga static int 628d00f0155Sayznaga mmioctl_get_mem_sid(intptr_t data) 629d00f0155Sayznaga { 630d00f0155Sayznaga mem_name_t mem_name; 631d00f0155Sayznaga void *buf; 632d00f0155Sayznaga void *name; 633d00f0155Sayznaga size_t name_len; 634d00f0155Sayznaga size_t bufsize; 635d00f0155Sayznaga int len, err; 636d00f0155Sayznaga 637d00f0155Sayznaga if ((bufsize = cpu_get_name_bufsize()) == 0) 638d00f0155Sayznaga return (ENOTSUP); 639d00f0155Sayznaga 640d00f0155Sayznaga if ((err = mm_read_mem_name(data, &mem_name)) < 0) 641d00f0155Sayznaga return (err); 642d00f0155Sayznaga 643d00f0155Sayznaga buf = kmem_alloc(bufsize, KM_SLEEP); 644d00f0155Sayznaga 645d00f0155Sayznaga if (mem_name.m_namelen > 1024) 646d00f0155Sayznaga mem_name.m_namelen = 1024; /* cap at 1024 bytes */ 647d00f0155Sayznaga 648d00f0155Sayznaga name = kmem_alloc(mem_name.m_namelen, KM_SLEEP); 649d00f0155Sayznaga 650d00f0155Sayznaga if ((err = copyinstr((char *)mem_name.m_name, (char *)name, 651d00f0155Sayznaga mem_name.m_namelen, &name_len)) != 0) { 652d00f0155Sayznaga kmem_free(buf, bufsize); 653d00f0155Sayznaga kmem_free(name, mem_name.m_namelen); 654d00f0155Sayznaga return (err); 655d00f0155Sayznaga } 656d00f0155Sayznaga 657d00f0155Sayznaga /* 658d00f0155Sayznaga * Call into cpu specific code to do the lookup. 659d00f0155Sayznaga */ 660d00f0155Sayznaga if ((err = cpu_get_mem_sid(name, buf, bufsize, &len)) != 0) { 661d00f0155Sayznaga kmem_free(buf, bufsize); 662d00f0155Sayznaga kmem_free(name, mem_name.m_namelen); 663d00f0155Sayznaga return (err); 664d00f0155Sayznaga } 665d00f0155Sayznaga 666d00f0155Sayznaga if (len > mem_name.m_sidlen) { 667d00f0155Sayznaga kmem_free(buf, bufsize); 668d00f0155Sayznaga kmem_free(name, mem_name.m_namelen); 669d00f0155Sayznaga return (ENAMETOOLONG); 670d00f0155Sayznaga } 671d00f0155Sayznaga 672d00f0155Sayznaga if (copyoutstr(buf, (char *)mem_name.m_sid, 673d00f0155Sayznaga mem_name.m_sidlen, NULL) != 0) { 674d00f0155Sayznaga kmem_free(buf, bufsize); 675d00f0155Sayznaga kmem_free(name, mem_name.m_namelen); 676d00f0155Sayznaga return (EFAULT); 677d00f0155Sayznaga } 678d00f0155Sayznaga 679d00f0155Sayznaga kmem_free(buf, bufsize); 680d00f0155Sayznaga kmem_free(name, mem_name.m_namelen); 681d00f0155Sayznaga return (0); 682d00f0155Sayznaga } 6837c478bd9Sstevel@tonic-gate #endif /* __sparc */ 6847c478bd9Sstevel@tonic-gate 6857c478bd9Sstevel@tonic-gate /* 6867c478bd9Sstevel@tonic-gate * Private ioctls for 6877c478bd9Sstevel@tonic-gate * libkvm to support kvm_physaddr(). 6887c478bd9Sstevel@tonic-gate * FMA support for page_retire() and memory attribute information. 6897c478bd9Sstevel@tonic-gate */ 6907c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 6917c478bd9Sstevel@tonic-gate static int 6927c478bd9Sstevel@tonic-gate mmioctl(dev_t dev, int cmd, intptr_t data, int flag, cred_t *cred, int *rvalp) 6937c478bd9Sstevel@tonic-gate { 69433129b33Sayznaga if ((cmd == MEM_VTOP && getminor(dev) != M_KMEM) || 69533129b33Sayznaga (cmd != MEM_VTOP && getminor(dev) != M_MEM)) 696d00f0155Sayznaga return (ENXIO); 697d00f0155Sayznaga 6987c478bd9Sstevel@tonic-gate switch (cmd) { 6997c478bd9Sstevel@tonic-gate case MEM_VTOP: 7007c478bd9Sstevel@tonic-gate return (mmioctl_vtop(data)); 7017c478bd9Sstevel@tonic-gate 7027c478bd9Sstevel@tonic-gate case MEM_PAGE_RETIRE: 7037c478bd9Sstevel@tonic-gate case MEM_PAGE_ISRETIRED: 704db874c57Selowe case MEM_PAGE_UNRETIRE: 705db874c57Selowe case MEM_PAGE_RETIRE_MCE: 706db874c57Selowe case MEM_PAGE_RETIRE_UE: 707db874c57Selowe case MEM_PAGE_GETERRORS: 708db874c57Selowe case MEM_PAGE_RETIRE_TEST: 7097c478bd9Sstevel@tonic-gate return (mmioctl_page_retire(cmd, data)); 7107c478bd9Sstevel@tonic-gate 7117c478bd9Sstevel@tonic-gate #ifdef __sparc 712d00f0155Sayznaga case MEM_NAME: 7137c478bd9Sstevel@tonic-gate return (mmioctl_get_mem_name(data)); 7147c478bd9Sstevel@tonic-gate 7157c478bd9Sstevel@tonic-gate case MEM_INFO: 7167c478bd9Sstevel@tonic-gate return (mmioctl_get_mem_info(data)); 717d00f0155Sayznaga 718d00f0155Sayznaga case MEM_SID: 719d00f0155Sayznaga return (mmioctl_get_mem_sid(data)); 7207c478bd9Sstevel@tonic-gate #else 721d00f0155Sayznaga case MEM_NAME: 722d00f0155Sayznaga case MEM_INFO: 723d00f0155Sayznaga case MEM_SID: 7247c478bd9Sstevel@tonic-gate return (ENOTSUP); 725d00f0155Sayznaga #endif /* __sparc */ 7267c478bd9Sstevel@tonic-gate } 7277c478bd9Sstevel@tonic-gate return (ENXIO); 7287c478bd9Sstevel@tonic-gate } 7297c478bd9Sstevel@tonic-gate 7307c478bd9Sstevel@tonic-gate /*ARGSUSED2*/ 7317c478bd9Sstevel@tonic-gate static int 7327c478bd9Sstevel@tonic-gate mmmmap(dev_t dev, off_t off, int prot) 7337c478bd9Sstevel@tonic-gate { 7347c478bd9Sstevel@tonic-gate pfn_t pf; 7357c478bd9Sstevel@tonic-gate struct memlist *pmem; 7367c478bd9Sstevel@tonic-gate minor_t minor = getminor(dev); 7377c478bd9Sstevel@tonic-gate 7387c478bd9Sstevel@tonic-gate switch (minor) { 7397c478bd9Sstevel@tonic-gate case M_MEM: 7407c478bd9Sstevel@tonic-gate pf = btop(off); 7417c478bd9Sstevel@tonic-gate memlist_read_lock(); 7427c478bd9Sstevel@tonic-gate for (pmem = phys_install; pmem != NULL; pmem = pmem->next) { 7437c478bd9Sstevel@tonic-gate if (pf >= BTOP(pmem->address) && 7447c478bd9Sstevel@tonic-gate pf < BTOP(pmem->address + pmem->size)) { 7457c478bd9Sstevel@tonic-gate memlist_read_unlock(); 7467c478bd9Sstevel@tonic-gate return (impl_obmem_pfnum(pf)); 7477c478bd9Sstevel@tonic-gate } 7487c478bd9Sstevel@tonic-gate } 7497c478bd9Sstevel@tonic-gate memlist_read_unlock(); 7507c478bd9Sstevel@tonic-gate break; 7517c478bd9Sstevel@tonic-gate 7527c478bd9Sstevel@tonic-gate case M_KMEM: 7537c478bd9Sstevel@tonic-gate case M_ALLKMEM: 7547c478bd9Sstevel@tonic-gate /* no longer supported with KPR */ 7557c478bd9Sstevel@tonic-gate return (-1); 7567c478bd9Sstevel@tonic-gate 7577c478bd9Sstevel@tonic-gate case M_ZERO: 7587c478bd9Sstevel@tonic-gate /* 7597c478bd9Sstevel@tonic-gate * We shouldn't be mmap'ing to /dev/zero here as 7607c478bd9Sstevel@tonic-gate * mmsegmap() should have already converted 7617c478bd9Sstevel@tonic-gate * a mapping request for this device to a mapping 7627c478bd9Sstevel@tonic-gate * using seg_vn for anonymous memory. 7637c478bd9Sstevel@tonic-gate */ 7647c478bd9Sstevel@tonic-gate break; 7657c478bd9Sstevel@tonic-gate 7667c478bd9Sstevel@tonic-gate } 7677c478bd9Sstevel@tonic-gate return (-1); 7687c478bd9Sstevel@tonic-gate } 7697c478bd9Sstevel@tonic-gate 7707c478bd9Sstevel@tonic-gate /* 7717c478bd9Sstevel@tonic-gate * This function is called when a memory device is mmap'ed. 7727c478bd9Sstevel@tonic-gate * Set up the mapping to the correct device driver. 7737c478bd9Sstevel@tonic-gate */ 7747c478bd9Sstevel@tonic-gate static int 7757c478bd9Sstevel@tonic-gate mmsegmap(dev_t dev, off_t off, struct as *as, caddr_t *addrp, off_t len, 7767c478bd9Sstevel@tonic-gate uint_t prot, uint_t maxprot, uint_t flags, struct cred *cred) 7777c478bd9Sstevel@tonic-gate { 7787c478bd9Sstevel@tonic-gate struct segvn_crargs vn_a; 7797c478bd9Sstevel@tonic-gate struct segdev_crargs dev_a; 7807c478bd9Sstevel@tonic-gate int error; 7817c478bd9Sstevel@tonic-gate minor_t minor; 7827c478bd9Sstevel@tonic-gate off_t i; 7837c478bd9Sstevel@tonic-gate 7847c478bd9Sstevel@tonic-gate minor = getminor(dev); 7857c478bd9Sstevel@tonic-gate 7867c478bd9Sstevel@tonic-gate as_rangelock(as); 7877c478bd9Sstevel@tonic-gate /* 7887c478bd9Sstevel@tonic-gate * No need to worry about vac alignment on /dev/zero 7897c478bd9Sstevel@tonic-gate * since this is a "clone" object that doesn't yet exist. 7907c478bd9Sstevel@tonic-gate */ 79160946fe0Smec error = choose_addr(as, addrp, len, off, 7927c478bd9Sstevel@tonic-gate (minor == M_MEM) || (minor == M_KMEM), flags); 79360946fe0Smec if (error != 0) { 7947c478bd9Sstevel@tonic-gate as_rangeunlock(as); 79560946fe0Smec return (error); 7967c478bd9Sstevel@tonic-gate } 7977c478bd9Sstevel@tonic-gate 7987c478bd9Sstevel@tonic-gate switch (minor) { 7997c478bd9Sstevel@tonic-gate case M_MEM: 8007c478bd9Sstevel@tonic-gate /* /dev/mem cannot be mmap'ed with MAP_PRIVATE */ 8017c478bd9Sstevel@tonic-gate if ((flags & MAP_TYPE) != MAP_SHARED) { 8027c478bd9Sstevel@tonic-gate as_rangeunlock(as); 8037c478bd9Sstevel@tonic-gate return (EINVAL); 8047c478bd9Sstevel@tonic-gate } 8057c478bd9Sstevel@tonic-gate 8067c478bd9Sstevel@tonic-gate /* 8077c478bd9Sstevel@tonic-gate * Check to ensure that the entire range is 8087c478bd9Sstevel@tonic-gate * legal and we are not trying to map in 8097c478bd9Sstevel@tonic-gate * more than the device will let us. 8107c478bd9Sstevel@tonic-gate */ 8117c478bd9Sstevel@tonic-gate for (i = 0; i < len; i += PAGESIZE) { 8127c478bd9Sstevel@tonic-gate if (mmmmap(dev, off + i, maxprot) == -1) { 8137c478bd9Sstevel@tonic-gate as_rangeunlock(as); 8147c478bd9Sstevel@tonic-gate return (ENXIO); 8157c478bd9Sstevel@tonic-gate } 8167c478bd9Sstevel@tonic-gate } 8177c478bd9Sstevel@tonic-gate 8187c478bd9Sstevel@tonic-gate /* 8197c478bd9Sstevel@tonic-gate * Use seg_dev segment driver for /dev/mem mapping. 8207c478bd9Sstevel@tonic-gate */ 8217c478bd9Sstevel@tonic-gate dev_a.mapfunc = mmmmap; 8227c478bd9Sstevel@tonic-gate dev_a.dev = dev; 8237c478bd9Sstevel@tonic-gate dev_a.offset = off; 8247c478bd9Sstevel@tonic-gate dev_a.type = (flags & MAP_TYPE); 8257c478bd9Sstevel@tonic-gate dev_a.prot = (uchar_t)prot; 8267c478bd9Sstevel@tonic-gate dev_a.maxprot = (uchar_t)maxprot; 8277c478bd9Sstevel@tonic-gate dev_a.hat_attr = 0; 8287c478bd9Sstevel@tonic-gate 8297c478bd9Sstevel@tonic-gate /* 8307c478bd9Sstevel@tonic-gate * Make /dev/mem mappings non-consistent since we can't 8317c478bd9Sstevel@tonic-gate * alias pages that don't have page structs behind them, 8327c478bd9Sstevel@tonic-gate * such as kernel stack pages. If someone mmap()s a kernel 8337c478bd9Sstevel@tonic-gate * stack page and if we give him a tte with cv, a line from 8347c478bd9Sstevel@tonic-gate * that page can get into both pages of the spitfire d$. 8357c478bd9Sstevel@tonic-gate * But snoop from another processor will only invalidate 8367c478bd9Sstevel@tonic-gate * the first page. This later caused kernel (xc_attention) 8377c478bd9Sstevel@tonic-gate * to go into an infinite loop at pil 13 and no interrupts 8387c478bd9Sstevel@tonic-gate * could come in. See 1203630. 8397c478bd9Sstevel@tonic-gate * 8407c478bd9Sstevel@tonic-gate */ 8417c478bd9Sstevel@tonic-gate dev_a.hat_flags = HAT_LOAD_NOCONSIST; 8427c478bd9Sstevel@tonic-gate dev_a.devmap_data = NULL; 8437c478bd9Sstevel@tonic-gate 8447c478bd9Sstevel@tonic-gate error = as_map(as, *addrp, len, segdev_create, &dev_a); 8457c478bd9Sstevel@tonic-gate break; 8467c478bd9Sstevel@tonic-gate 8477c478bd9Sstevel@tonic-gate case M_ZERO: 8487c478bd9Sstevel@tonic-gate /* 8497c478bd9Sstevel@tonic-gate * Use seg_vn segment driver for /dev/zero mapping. 8507c478bd9Sstevel@tonic-gate * Passing in a NULL amp gives us the "cloning" effect. 8517c478bd9Sstevel@tonic-gate */ 8527c478bd9Sstevel@tonic-gate vn_a.vp = NULL; 8537c478bd9Sstevel@tonic-gate vn_a.offset = 0; 8547c478bd9Sstevel@tonic-gate vn_a.type = (flags & MAP_TYPE); 8557c478bd9Sstevel@tonic-gate vn_a.prot = prot; 8567c478bd9Sstevel@tonic-gate vn_a.maxprot = maxprot; 8577c478bd9Sstevel@tonic-gate vn_a.flags = flags & ~MAP_TYPE; 8587c478bd9Sstevel@tonic-gate vn_a.cred = cred; 8597c478bd9Sstevel@tonic-gate vn_a.amp = NULL; 8607c478bd9Sstevel@tonic-gate vn_a.szc = 0; 8617c478bd9Sstevel@tonic-gate vn_a.lgrp_mem_policy_flags = 0; 8627c478bd9Sstevel@tonic-gate error = as_map(as, *addrp, len, segvn_create, &vn_a); 8637c478bd9Sstevel@tonic-gate break; 8647c478bd9Sstevel@tonic-gate 8657c478bd9Sstevel@tonic-gate case M_KMEM: 8667c478bd9Sstevel@tonic-gate case M_ALLKMEM: 8677c478bd9Sstevel@tonic-gate /* No longer supported with KPR. */ 8687c478bd9Sstevel@tonic-gate error = ENXIO; 8697c478bd9Sstevel@tonic-gate break; 8707c478bd9Sstevel@tonic-gate 8717c478bd9Sstevel@tonic-gate case M_NULL: 8727c478bd9Sstevel@tonic-gate /* 8737c478bd9Sstevel@tonic-gate * Use seg_dev segment driver for /dev/null mapping. 8747c478bd9Sstevel@tonic-gate */ 8757c478bd9Sstevel@tonic-gate dev_a.mapfunc = mmmmap; 8767c478bd9Sstevel@tonic-gate dev_a.dev = dev; 8777c478bd9Sstevel@tonic-gate dev_a.offset = off; 8787c478bd9Sstevel@tonic-gate dev_a.type = 0; /* neither PRIVATE nor SHARED */ 8797c478bd9Sstevel@tonic-gate dev_a.prot = dev_a.maxprot = (uchar_t)PROT_NONE; 8807c478bd9Sstevel@tonic-gate dev_a.hat_attr = 0; 8817c478bd9Sstevel@tonic-gate dev_a.hat_flags = 0; 8827c478bd9Sstevel@tonic-gate error = as_map(as, *addrp, len, segdev_create, &dev_a); 8837c478bd9Sstevel@tonic-gate break; 8847c478bd9Sstevel@tonic-gate 8857c478bd9Sstevel@tonic-gate default: 8867c478bd9Sstevel@tonic-gate error = ENXIO; 8877c478bd9Sstevel@tonic-gate } 8887c478bd9Sstevel@tonic-gate 8897c478bd9Sstevel@tonic-gate as_rangeunlock(as); 8907c478bd9Sstevel@tonic-gate return (error); 8917c478bd9Sstevel@tonic-gate } 8927c478bd9Sstevel@tonic-gate 8937c478bd9Sstevel@tonic-gate static struct cb_ops mm_cb_ops = { 8947c478bd9Sstevel@tonic-gate mmopen, /* open */ 8957c478bd9Sstevel@tonic-gate nulldev, /* close */ 8967c478bd9Sstevel@tonic-gate nodev, /* strategy */ 8977c478bd9Sstevel@tonic-gate nodev, /* print */ 8987c478bd9Sstevel@tonic-gate nodev, /* dump */ 8997c478bd9Sstevel@tonic-gate mmread, /* read */ 9007c478bd9Sstevel@tonic-gate mmwrite, /* write */ 9017c478bd9Sstevel@tonic-gate mmioctl, /* ioctl */ 9027c478bd9Sstevel@tonic-gate nodev, /* devmap */ 9037c478bd9Sstevel@tonic-gate mmmmap, /* mmap */ 9047c478bd9Sstevel@tonic-gate mmsegmap, /* segmap */ 9057c478bd9Sstevel@tonic-gate mmchpoll, /* poll */ 9067c478bd9Sstevel@tonic-gate mmpropop, /* prop_op */ 9077c478bd9Sstevel@tonic-gate 0, /* streamtab */ 9087c478bd9Sstevel@tonic-gate D_NEW | D_MP | D_64BIT | D_U64BIT 9097c478bd9Sstevel@tonic-gate }; 9107c478bd9Sstevel@tonic-gate 9117c478bd9Sstevel@tonic-gate static struct dev_ops mm_ops = { 9127c478bd9Sstevel@tonic-gate DEVO_REV, /* devo_rev, */ 9137c478bd9Sstevel@tonic-gate 0, /* refcnt */ 9147c478bd9Sstevel@tonic-gate mm_info, /* get_dev_info */ 9157c478bd9Sstevel@tonic-gate nulldev, /* identify */ 9167c478bd9Sstevel@tonic-gate nulldev, /* probe */ 9177c478bd9Sstevel@tonic-gate mm_attach, /* attach */ 9187c478bd9Sstevel@tonic-gate nodev, /* detach */ 9197c478bd9Sstevel@tonic-gate nodev, /* reset */ 9207c478bd9Sstevel@tonic-gate &mm_cb_ops, /* driver operations */ 921*19397407SSherry Moore (struct bus_ops *)0, /* bus operations */ 922*19397407SSherry Moore NULL, /* power */ 923*19397407SSherry Moore ddi_quiesce_not_needed, /* quiesce */ 9247c478bd9Sstevel@tonic-gate }; 9257c478bd9Sstevel@tonic-gate 9267c478bd9Sstevel@tonic-gate static struct modldrv modldrv = { 927e4b86885SCheng Sean Ye &mod_driverops, "memory driver", &mm_ops, 9287c478bd9Sstevel@tonic-gate }; 9297c478bd9Sstevel@tonic-gate 9307c478bd9Sstevel@tonic-gate static struct modlinkage modlinkage = { 9317c478bd9Sstevel@tonic-gate MODREV_1, &modldrv, NULL 9327c478bd9Sstevel@tonic-gate }; 9337c478bd9Sstevel@tonic-gate 9347c478bd9Sstevel@tonic-gate int 9357c478bd9Sstevel@tonic-gate _init(void) 9367c478bd9Sstevel@tonic-gate { 9377c478bd9Sstevel@tonic-gate return (mod_install(&modlinkage)); 9387c478bd9Sstevel@tonic-gate } 9397c478bd9Sstevel@tonic-gate 9407c478bd9Sstevel@tonic-gate int 9417c478bd9Sstevel@tonic-gate _info(struct modinfo *modinfop) 9427c478bd9Sstevel@tonic-gate { 9437c478bd9Sstevel@tonic-gate return (mod_info(&modlinkage, modinfop)); 9447c478bd9Sstevel@tonic-gate } 9457c478bd9Sstevel@tonic-gate 9467c478bd9Sstevel@tonic-gate int 9477c478bd9Sstevel@tonic-gate _fini(void) 9487c478bd9Sstevel@tonic-gate { 9497c478bd9Sstevel@tonic-gate return (mod_remove(&modlinkage)); 9507c478bd9Sstevel@tonic-gate } 9517c478bd9Sstevel@tonic-gate 9527c478bd9Sstevel@tonic-gate static int 9537c478bd9Sstevel@tonic-gate mm_kstat_update(kstat_t *ksp, int rw) 9547c478bd9Sstevel@tonic-gate { 9557c478bd9Sstevel@tonic-gate struct memlist *pmem; 9567c478bd9Sstevel@tonic-gate uint_t count; 9577c478bd9Sstevel@tonic-gate 9587c478bd9Sstevel@tonic-gate if (rw == KSTAT_WRITE) 9597c478bd9Sstevel@tonic-gate return (EACCES); 9607c478bd9Sstevel@tonic-gate 9617c478bd9Sstevel@tonic-gate count = 0; 9627c478bd9Sstevel@tonic-gate memlist_read_lock(); 9637c478bd9Sstevel@tonic-gate for (pmem = phys_install; pmem != NULL; pmem = pmem->next) { 9647c478bd9Sstevel@tonic-gate count++; 9657c478bd9Sstevel@tonic-gate } 9667c478bd9Sstevel@tonic-gate memlist_read_unlock(); 9677c478bd9Sstevel@tonic-gate 9687c478bd9Sstevel@tonic-gate ksp->ks_ndata = count; 9697c478bd9Sstevel@tonic-gate ksp->ks_data_size = count * 2 * sizeof (uint64_t); 9707c478bd9Sstevel@tonic-gate 9717c478bd9Sstevel@tonic-gate return (0); 9727c478bd9Sstevel@tonic-gate } 9737c478bd9Sstevel@tonic-gate 9747c478bd9Sstevel@tonic-gate static int 9757c478bd9Sstevel@tonic-gate mm_kstat_snapshot(kstat_t *ksp, void *buf, int rw) 9767c478bd9Sstevel@tonic-gate { 9777c478bd9Sstevel@tonic-gate struct memlist *pmem; 9787c478bd9Sstevel@tonic-gate struct memunit { 9797c478bd9Sstevel@tonic-gate uint64_t address; 9807c478bd9Sstevel@tonic-gate uint64_t size; 9817c478bd9Sstevel@tonic-gate } *kspmem; 9827c478bd9Sstevel@tonic-gate 9837c478bd9Sstevel@tonic-gate if (rw == KSTAT_WRITE) 9847c478bd9Sstevel@tonic-gate return (EACCES); 9857c478bd9Sstevel@tonic-gate 9867c478bd9Sstevel@tonic-gate ksp->ks_snaptime = gethrtime(); 9877c478bd9Sstevel@tonic-gate 9887c478bd9Sstevel@tonic-gate kspmem = (struct memunit *)buf; 9897c478bd9Sstevel@tonic-gate memlist_read_lock(); 9907c478bd9Sstevel@tonic-gate for (pmem = phys_install; pmem != NULL; pmem = pmem->next, kspmem++) { 9917c478bd9Sstevel@tonic-gate if ((caddr_t)kspmem >= (caddr_t)buf + ksp->ks_data_size) 9927c478bd9Sstevel@tonic-gate break; 9937c478bd9Sstevel@tonic-gate kspmem->address = pmem->address; 9947c478bd9Sstevel@tonic-gate kspmem->size = pmem->size; 9957c478bd9Sstevel@tonic-gate } 9967c478bd9Sstevel@tonic-gate memlist_read_unlock(); 9977c478bd9Sstevel@tonic-gate 9987c478bd9Sstevel@tonic-gate return (0); 9997c478bd9Sstevel@tonic-gate } 1000d00f0155Sayznaga 1001d00f0155Sayznaga /* 1002d00f0155Sayznaga * Read a mem_name_t from user-space and store it in the mem_name_t 1003d00f0155Sayznaga * pointed to by the mem_name argument. 1004d00f0155Sayznaga */ 1005d00f0155Sayznaga static int 1006d00f0155Sayznaga mm_read_mem_name(intptr_t data, mem_name_t *mem_name) 1007d00f0155Sayznaga { 1008d00f0155Sayznaga if (get_udatamodel() == DATAMODEL_NATIVE) { 1009d00f0155Sayznaga if (copyin((void *)data, mem_name, sizeof (mem_name_t))) 1010d00f0155Sayznaga return (EFAULT); 1011d00f0155Sayznaga } 1012d00f0155Sayznaga #ifdef _SYSCALL32 1013d00f0155Sayznaga else { 1014d00f0155Sayznaga mem_name32_t mem_name32; 1015d00f0155Sayznaga 1016d00f0155Sayznaga if (copyin((void *)data, &mem_name32, sizeof (mem_name32_t))) 1017d00f0155Sayznaga return (EFAULT); 1018d00f0155Sayznaga mem_name->m_addr = mem_name32.m_addr; 1019d00f0155Sayznaga mem_name->m_synd = mem_name32.m_synd; 1020d00f0155Sayznaga mem_name->m_type[0] = mem_name32.m_type[0]; 1021d00f0155Sayznaga mem_name->m_type[1] = mem_name32.m_type[1]; 102233129b33Sayznaga mem_name->m_name = (caddr_t)(uintptr_t)mem_name32.m_name; 1023d00f0155Sayznaga mem_name->m_namelen = (size_t)mem_name32.m_namelen; 102433129b33Sayznaga mem_name->m_sid = (caddr_t)(uintptr_t)mem_name32.m_sid; 1025d00f0155Sayznaga mem_name->m_sidlen = (size_t)mem_name32.m_sidlen; 1026d00f0155Sayznaga } 1027d00f0155Sayznaga #endif /* _SYSCALL32 */ 1028d00f0155Sayznaga 1029d00f0155Sayznaga return (0); 1030d00f0155Sayznaga } 1031