Jack Steiner | 78cf1de | 2008-07-29 22:33:56 -0700 | [diff] [blame] | 1 | /* |
| 2 | * SN Platform GRU Driver |
| 3 | * |
| 4 | * FILE OPERATIONS & DRIVER INITIALIZATION |
| 5 | * |
| 6 | * This file supports the user system call for file open, close, mmap, etc. |
| 7 | * This also incudes the driver initialization code. |
| 8 | * |
| 9 | * Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved. |
| 10 | * |
| 11 | * This program is free software; you can redistribute it and/or modify |
| 12 | * it under the terms of the GNU General Public License as published by |
| 13 | * the Free Software Foundation; either version 2 of the License, or |
| 14 | * (at your option) any later version. |
| 15 | * |
| 16 | * This program is distributed in the hope that it will be useful, |
| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 19 | * GNU General Public License for more details. |
| 20 | * |
| 21 | * You should have received a copy of the GNU General Public License |
| 22 | * along with this program; if not, write to the Free Software |
| 23 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 24 | */ |
| 25 | |
| 26 | #include <linux/module.h> |
| 27 | #include <linux/kernel.h> |
| 28 | #include <linux/errno.h> |
| 29 | #include <linux/slab.h> |
| 30 | #include <linux/mm.h> |
| 31 | #include <linux/io.h> |
| 32 | #include <linux/smp_lock.h> |
| 33 | #include <linux/spinlock.h> |
| 34 | #include <linux/device.h> |
| 35 | #include <linux/miscdevice.h> |
| 36 | #include <linux/interrupt.h> |
| 37 | #include <linux/proc_fs.h> |
| 38 | #include <linux/uaccess.h> |
Dean Nelson | 1c00400 | 2009-02-09 10:25:20 -0600 | [diff] [blame] | 39 | #include <asm/uv/uv.h> |
Jack Steiner | 78cf1de | 2008-07-29 22:33:56 -0700 | [diff] [blame] | 40 | #include "gru.h" |
| 41 | #include "grulib.h" |
| 42 | #include "grutables.h" |
| 43 | |
Jack Steiner | 78cf1de | 2008-07-29 22:33:56 -0700 | [diff] [blame] | 44 | #include <asm/uv/uv_hub.h> |
| 45 | #include <asm/uv/uv_mmrs.h> |
| 46 | |
| 47 | struct gru_blade_state *gru_base[GRU_MAX_BLADES] __read_mostly; |
Jack Steiner | fe5bb6b | 2009-04-02 16:59:04 -0700 | [diff] [blame] | 48 | unsigned long gru_start_paddr __read_mostly; |
| 49 | unsigned long gru_end_paddr __read_mostly; |
Jack Steiner | e1c3219 | 2009-04-02 16:59:10 -0700 | [diff] [blame] | 50 | unsigned int gru_max_gids __read_mostly; |
Jack Steiner | 78cf1de | 2008-07-29 22:33:56 -0700 | [diff] [blame] | 51 | struct gru_stats_s gru_stats; |
| 52 | |
| 53 | /* Guaranteed user available resources on each node */ |
| 54 | static int max_user_cbrs, max_user_dsr_bytes; |
| 55 | |
| 56 | static struct file_operations gru_fops; |
| 57 | static struct miscdevice gru_miscdev; |
| 58 | |
| 59 | |
| 60 | /* |
| 61 | * gru_vma_close |
| 62 | * |
| 63 | * Called when unmapping a device mapping. Frees all gru resources |
| 64 | * and tables belonging to the vma. |
| 65 | */ |
| 66 | static void gru_vma_close(struct vm_area_struct *vma) |
| 67 | { |
| 68 | struct gru_vma_data *vdata; |
| 69 | struct gru_thread_state *gts; |
| 70 | struct list_head *entry, *next; |
| 71 | |
| 72 | if (!vma->vm_private_data) |
| 73 | return; |
| 74 | |
| 75 | vdata = vma->vm_private_data; |
| 76 | vma->vm_private_data = NULL; |
| 77 | gru_dbg(grudev, "vma %p, file %p, vdata %p\n", vma, vma->vm_file, |
| 78 | vdata); |
| 79 | list_for_each_safe(entry, next, &vdata->vd_head) { |
| 80 | gts = |
| 81 | list_entry(entry, struct gru_thread_state, ts_next); |
| 82 | list_del(>s->ts_next); |
| 83 | mutex_lock(>s->ts_ctxlock); |
| 84 | if (gts->ts_gru) |
| 85 | gru_unload_context(gts, 0); |
| 86 | mutex_unlock(>s->ts_ctxlock); |
| 87 | gts_drop(gts); |
| 88 | } |
| 89 | kfree(vdata); |
| 90 | STAT(vdata_free); |
| 91 | } |
| 92 | |
| 93 | /* |
| 94 | * gru_file_mmap |
| 95 | * |
| 96 | * Called when mmaping the device. Initializes the vma with a fault handler |
| 97 | * and private data structure necessary to allocate, track, and free the |
| 98 | * underlying pages. |
| 99 | */ |
| 100 | static int gru_file_mmap(struct file *file, struct vm_area_struct *vma) |
| 101 | { |
| 102 | if ((vma->vm_flags & (VM_SHARED | VM_WRITE)) != (VM_SHARED | VM_WRITE)) |
| 103 | return -EPERM; |
| 104 | |
Jack Steiner | 9ca8e40c1 | 2008-07-29 22:34:02 -0700 | [diff] [blame] | 105 | if (vma->vm_start & (GRU_GSEG_PAGESIZE - 1) || |
Jack Steiner | fe5bb6b | 2009-04-02 16:59:04 -0700 | [diff] [blame] | 106 | vma->vm_end & (GRU_GSEG_PAGESIZE - 1)) |
Jack Steiner | 9ca8e40c1 | 2008-07-29 22:34:02 -0700 | [diff] [blame] | 107 | return -EINVAL; |
| 108 | |
Jack Steiner | 78cf1de | 2008-07-29 22:33:56 -0700 | [diff] [blame] | 109 | vma->vm_flags |= |
| 110 | (VM_IO | VM_DONTCOPY | VM_LOCKED | VM_DONTEXPAND | VM_PFNMAP | |
| 111 | VM_RESERVED); |
| 112 | vma->vm_page_prot = PAGE_SHARED; |
| 113 | vma->vm_ops = &gru_vm_ops; |
| 114 | |
| 115 | vma->vm_private_data = gru_alloc_vma_data(vma, 0); |
| 116 | if (!vma->vm_private_data) |
| 117 | return -ENOMEM; |
| 118 | |
| 119 | gru_dbg(grudev, "file %p, vaddr 0x%lx, vma %p, vdata %p\n", |
| 120 | file, vma->vm_start, vma, vma->vm_private_data); |
| 121 | return 0; |
| 122 | } |
| 123 | |
| 124 | /* |
| 125 | * Create a new GRU context |
| 126 | */ |
| 127 | static int gru_create_new_context(unsigned long arg) |
| 128 | { |
| 129 | struct gru_create_context_req req; |
| 130 | struct vm_area_struct *vma; |
| 131 | struct gru_vma_data *vdata; |
| 132 | int ret = -EINVAL; |
| 133 | |
| 134 | |
| 135 | if (copy_from_user(&req, (void __user *)arg, sizeof(req))) |
| 136 | return -EFAULT; |
| 137 | |
| 138 | if (req.data_segment_bytes == 0 || |
| 139 | req.data_segment_bytes > max_user_dsr_bytes) |
| 140 | return -EINVAL; |
| 141 | if (!req.control_blocks || !req.maximum_thread_count || |
| 142 | req.control_blocks > max_user_cbrs) |
| 143 | return -EINVAL; |
| 144 | |
| 145 | if (!(req.options & GRU_OPT_MISS_MASK)) |
| 146 | req.options |= GRU_OPT_MISS_FMM_INTR; |
| 147 | |
| 148 | down_write(¤t->mm->mmap_sem); |
| 149 | vma = gru_find_vma(req.gseg); |
| 150 | if (vma) { |
| 151 | vdata = vma->vm_private_data; |
| 152 | vdata->vd_user_options = req.options; |
| 153 | vdata->vd_dsr_au_count = |
| 154 | GRU_DS_BYTES_TO_AU(req.data_segment_bytes); |
| 155 | vdata->vd_cbr_au_count = GRU_CB_COUNT_TO_AU(req.control_blocks); |
| 156 | ret = 0; |
| 157 | } |
| 158 | up_write(¤t->mm->mmap_sem); |
| 159 | |
| 160 | return ret; |
| 161 | } |
| 162 | |
| 163 | /* |
| 164 | * Get GRU configuration info (temp - for emulator testing) |
| 165 | */ |
| 166 | static long gru_get_config_info(unsigned long arg) |
| 167 | { |
| 168 | struct gru_config_info info; |
| 169 | int nodesperblade; |
| 170 | |
| 171 | if (num_online_nodes() > 1 && |
| 172 | (uv_node_to_blade_id(1) == uv_node_to_blade_id(0))) |
| 173 | nodesperblade = 2; |
| 174 | else |
| 175 | nodesperblade = 1; |
| 176 | info.cpus = num_online_cpus(); |
| 177 | info.nodes = num_online_nodes(); |
| 178 | info.blades = info.nodes / nodesperblade; |
| 179 | info.chiplets = GRU_CHIPLETS_PER_BLADE * info.blades; |
| 180 | |
| 181 | if (copy_to_user((void __user *)arg, &info, sizeof(info))) |
| 182 | return -EFAULT; |
| 183 | return 0; |
| 184 | } |
| 185 | |
| 186 | /* |
| 187 | * Get GRU chiplet status |
| 188 | */ |
| 189 | static long gru_get_chiplet_status(unsigned long arg) |
| 190 | { |
| 191 | struct gru_state *gru; |
| 192 | struct gru_chiplet_info info; |
| 193 | |
| 194 | if (copy_from_user(&info, (void __user *)arg, sizeof(info))) |
| 195 | return -EFAULT; |
| 196 | |
| 197 | if (info.node == -1) |
| 198 | info.node = numa_node_id(); |
| 199 | if (info.node >= num_possible_nodes() || |
| 200 | info.chiplet >= GRU_CHIPLETS_PER_HUB || |
| 201 | info.node < 0 || info.chiplet < 0) |
| 202 | return -EINVAL; |
| 203 | |
| 204 | info.blade = uv_node_to_blade_id(info.node); |
| 205 | gru = get_gru(info.blade, info.chiplet); |
| 206 | |
| 207 | info.total_dsr_bytes = GRU_NUM_DSR_BYTES; |
| 208 | info.total_cbr = GRU_NUM_CB; |
| 209 | info.total_user_dsr_bytes = GRU_NUM_DSR_BYTES - |
| 210 | gru->gs_reserved_dsr_bytes; |
| 211 | info.total_user_cbr = GRU_NUM_CB - gru->gs_reserved_cbrs; |
| 212 | info.free_user_dsr_bytes = hweight64(gru->gs_dsr_map) * |
| 213 | GRU_DSR_AU_BYTES; |
| 214 | info.free_user_cbr = hweight64(gru->gs_cbr_map) * GRU_CBR_AU_SIZE; |
| 215 | |
| 216 | if (copy_to_user((void __user *)arg, &info, sizeof(info))) |
| 217 | return -EFAULT; |
| 218 | return 0; |
| 219 | } |
| 220 | |
| 221 | /* |
| 222 | * gru_file_unlocked_ioctl |
| 223 | * |
| 224 | * Called to update file attributes via IOCTL calls. |
| 225 | */ |
| 226 | static long gru_file_unlocked_ioctl(struct file *file, unsigned int req, |
| 227 | unsigned long arg) |
| 228 | { |
| 229 | int err = -EBADRQC; |
| 230 | |
| 231 | gru_dbg(grudev, "file %p\n", file); |
| 232 | |
| 233 | switch (req) { |
| 234 | case GRU_CREATE_CONTEXT: |
| 235 | err = gru_create_new_context(arg); |
| 236 | break; |
| 237 | case GRU_SET_TASK_SLICE: |
| 238 | err = gru_set_task_slice(arg); |
| 239 | break; |
| 240 | case GRU_USER_GET_EXCEPTION_DETAIL: |
| 241 | err = gru_get_exception_detail(arg); |
| 242 | break; |
| 243 | case GRU_USER_UNLOAD_CONTEXT: |
| 244 | err = gru_user_unload_context(arg); |
| 245 | break; |
| 246 | case GRU_GET_CHIPLET_STATUS: |
| 247 | err = gru_get_chiplet_status(arg); |
| 248 | break; |
| 249 | case GRU_USER_FLUSH_TLB: |
| 250 | err = gru_user_flush_tlb(arg); |
| 251 | break; |
| 252 | case GRU_USER_CALL_OS: |
| 253 | err = gru_handle_user_call_os(arg); |
| 254 | break; |
| 255 | case GRU_GET_CONFIG_INFO: |
| 256 | err = gru_get_config_info(arg); |
| 257 | break; |
| 258 | } |
| 259 | return err; |
| 260 | } |
| 261 | |
| 262 | /* |
| 263 | * Called at init time to build tables for all GRUs that are present in the |
| 264 | * system. |
| 265 | */ |
| 266 | static void gru_init_chiplet(struct gru_state *gru, unsigned long paddr, |
| 267 | void *vaddr, int nid, int bid, int grunum) |
| 268 | { |
| 269 | spin_lock_init(&gru->gs_lock); |
| 270 | spin_lock_init(&gru->gs_asid_lock); |
| 271 | gru->gs_gru_base_paddr = paddr; |
| 272 | gru->gs_gru_base_vaddr = vaddr; |
| 273 | gru->gs_gid = bid * GRU_CHIPLETS_PER_BLADE + grunum; |
| 274 | gru->gs_blade = gru_base[bid]; |
| 275 | gru->gs_blade_id = bid; |
| 276 | gru->gs_cbr_map = (GRU_CBR_AU == 64) ? ~0 : (1UL << GRU_CBR_AU) - 1; |
| 277 | gru->gs_dsr_map = (1UL << GRU_DSR_AU) - 1; |
Jack Steiner | 8741941 | 2009-04-02 16:59:08 -0700 | [diff] [blame] | 278 | gru->gs_asid_limit = MAX_ASID; |
Jack Steiner | 78cf1de | 2008-07-29 22:33:56 -0700 | [diff] [blame] | 279 | gru_tgh_flush_init(gru); |
Jack Steiner | e1c3219 | 2009-04-02 16:59:10 -0700 | [diff] [blame] | 280 | if (gru->gs_gid >= gru_max_gids) |
| 281 | gru_max_gids = gru->gs_gid + 1; |
Jack Steiner | 4388460 | 2009-04-02 16:59:05 -0700 | [diff] [blame] | 282 | gru_dbg(grudev, "bid %d, nid %d, gid %d, vaddr %p (0x%lx)\n", |
Jack Steiner | 78cf1de | 2008-07-29 22:33:56 -0700 | [diff] [blame] | 283 | bid, nid, gru->gs_gid, gru->gs_gru_base_vaddr, |
| 284 | gru->gs_gru_base_paddr); |
| 285 | gru_kservices_init(gru); |
| 286 | } |
| 287 | |
| 288 | static int gru_init_tables(unsigned long gru_base_paddr, void *gru_base_vaddr) |
| 289 | { |
| 290 | int pnode, nid, bid, chip; |
| 291 | int cbrs, dsrbytes, n; |
| 292 | int order = get_order(sizeof(struct gru_blade_state)); |
| 293 | struct page *page; |
| 294 | struct gru_state *gru; |
| 295 | unsigned long paddr; |
| 296 | void *vaddr; |
| 297 | |
| 298 | max_user_cbrs = GRU_NUM_CB; |
| 299 | max_user_dsr_bytes = GRU_NUM_DSR_BYTES; |
| 300 | for_each_online_node(nid) { |
| 301 | bid = uv_node_to_blade_id(nid); |
| 302 | pnode = uv_node_to_pnode(nid); |
Jack Steiner | fe5bb6b | 2009-04-02 16:59:04 -0700 | [diff] [blame] | 303 | if (bid < 0 || gru_base[bid]) |
Jack Steiner | 78cf1de | 2008-07-29 22:33:56 -0700 | [diff] [blame] | 304 | continue; |
| 305 | page = alloc_pages_node(nid, GFP_KERNEL, order); |
| 306 | if (!page) |
| 307 | goto fail; |
| 308 | gru_base[bid] = page_address(page); |
| 309 | memset(gru_base[bid], 0, sizeof(struct gru_blade_state)); |
| 310 | gru_base[bid]->bs_lru_gru = &gru_base[bid]->bs_grus[0]; |
| 311 | spin_lock_init(&gru_base[bid]->bs_lock); |
| 312 | |
| 313 | dsrbytes = 0; |
| 314 | cbrs = 0; |
| 315 | for (gru = gru_base[bid]->bs_grus, chip = 0; |
Jack Steiner | fe5bb6b | 2009-04-02 16:59:04 -0700 | [diff] [blame] | 316 | chip < GRU_CHIPLETS_PER_BLADE; |
Jack Steiner | 78cf1de | 2008-07-29 22:33:56 -0700 | [diff] [blame] | 317 | chip++, gru++) { |
| 318 | paddr = gru_chiplet_paddr(gru_base_paddr, pnode, chip); |
| 319 | vaddr = gru_chiplet_vaddr(gru_base_vaddr, pnode, chip); |
Jack Steiner | fe5bb6b | 2009-04-02 16:59:04 -0700 | [diff] [blame] | 320 | gru_init_chiplet(gru, paddr, vaddr, nid, bid, chip); |
Jack Steiner | 78cf1de | 2008-07-29 22:33:56 -0700 | [diff] [blame] | 321 | n = hweight64(gru->gs_cbr_map) * GRU_CBR_AU_SIZE; |
| 322 | cbrs = max(cbrs, n); |
| 323 | n = hweight64(gru->gs_dsr_map) * GRU_DSR_AU_BYTES; |
| 324 | dsrbytes = max(dsrbytes, n); |
| 325 | } |
| 326 | max_user_cbrs = min(max_user_cbrs, cbrs); |
| 327 | max_user_dsr_bytes = min(max_user_dsr_bytes, dsrbytes); |
| 328 | } |
| 329 | |
| 330 | return 0; |
| 331 | |
| 332 | fail: |
| 333 | for (nid--; nid >= 0; nid--) |
| 334 | free_pages((unsigned long)gru_base[nid], order); |
| 335 | return -ENOMEM; |
| 336 | } |
| 337 | |
| 338 | #ifdef CONFIG_IA64 |
| 339 | |
| 340 | static int get_base_irq(void) |
| 341 | { |
| 342 | return IRQ_GRU; |
| 343 | } |
| 344 | |
| 345 | #elif defined CONFIG_X86_64 |
| 346 | |
| 347 | static void noop(unsigned int irq) |
| 348 | { |
| 349 | } |
| 350 | |
| 351 | static struct irq_chip gru_chip = { |
| 352 | .name = "gru", |
| 353 | .mask = noop, |
| 354 | .unmask = noop, |
| 355 | .ack = noop, |
| 356 | }; |
| 357 | |
| 358 | static int get_base_irq(void) |
| 359 | { |
| 360 | set_irq_chip(IRQ_GRU, &gru_chip); |
| 361 | set_irq_chip(IRQ_GRU + 1, &gru_chip); |
| 362 | return IRQ_GRU; |
| 363 | } |
| 364 | #endif |
| 365 | |
| 366 | /* |
| 367 | * gru_init |
| 368 | * |
| 369 | * Called at boot or module load time to initialize the GRUs. |
| 370 | */ |
| 371 | static int __init gru_init(void) |
| 372 | { |
| 373 | int ret, irq, chip; |
| 374 | char id[10]; |
| 375 | void *gru_start_vaddr; |
| 376 | |
Dean Nelson | 1c00400 | 2009-02-09 10:25:20 -0600 | [diff] [blame] | 377 | if (!is_uv_system()) |
Robin Holt | e873cff | 2009-04-21 12:24:53 -0700 | [diff] [blame] | 378 | return 0; |
Jack Steiner | 78cf1de | 2008-07-29 22:33:56 -0700 | [diff] [blame] | 379 | |
| 380 | #if defined CONFIG_IA64 |
| 381 | gru_start_paddr = 0xd000000000UL; /* ZZZZZZZZZZZZZZZZZZZ fixme */ |
| 382 | #else |
| 383 | gru_start_paddr = uv_read_local_mmr(UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR) & |
| 384 | 0x7fffffffffffUL; |
Jack Steiner | 78cf1de | 2008-07-29 22:33:56 -0700 | [diff] [blame] | 385 | #endif |
| 386 | gru_start_vaddr = __va(gru_start_paddr); |
Jack Steiner | fe5bb6b | 2009-04-02 16:59:04 -0700 | [diff] [blame] | 387 | gru_end_paddr = gru_start_paddr + GRU_MAX_BLADES * GRU_SIZE; |
Jack Steiner | 78cf1de | 2008-07-29 22:33:56 -0700 | [diff] [blame] | 388 | printk(KERN_INFO "GRU space: 0x%lx - 0x%lx\n", |
| 389 | gru_start_paddr, gru_end_paddr); |
| 390 | irq = get_base_irq(); |
| 391 | for (chip = 0; chip < GRU_CHIPLETS_PER_BLADE; chip++) { |
| 392 | ret = request_irq(irq + chip, gru_intr, 0, id, NULL); |
Jack Steiner | fe5bb6b | 2009-04-02 16:59:04 -0700 | [diff] [blame] | 393 | /* TODO: fix irq handling on x86. For now ignore failure because |
Jack Steiner | 923f7f6 | 2008-10-15 22:05:13 -0700 | [diff] [blame] | 394 | * interrupts are not required & not yet fully supported */ |
| 395 | if (ret) { |
Jack Steiner | fe5bb6b | 2009-04-02 16:59:04 -0700 | [diff] [blame] | 396 | printk(KERN_WARNING |
| 397 | "!!!WARNING: GRU ignoring request failure!!!\n"); |
Jack Steiner | 923f7f6 | 2008-10-15 22:05:13 -0700 | [diff] [blame] | 398 | ret = 0; |
| 399 | } |
Jack Steiner | 78cf1de | 2008-07-29 22:33:56 -0700 | [diff] [blame] | 400 | if (ret) { |
| 401 | printk(KERN_ERR "%s: request_irq failed\n", |
| 402 | GRU_DRIVER_ID_STR); |
| 403 | goto exit1; |
| 404 | } |
| 405 | } |
| 406 | |
| 407 | ret = misc_register(&gru_miscdev); |
| 408 | if (ret) { |
| 409 | printk(KERN_ERR "%s: misc_register failed\n", |
| 410 | GRU_DRIVER_ID_STR); |
| 411 | goto exit1; |
| 412 | } |
| 413 | |
| 414 | ret = gru_proc_init(); |
| 415 | if (ret) { |
| 416 | printk(KERN_ERR "%s: proc init failed\n", GRU_DRIVER_ID_STR); |
| 417 | goto exit2; |
| 418 | } |
| 419 | |
| 420 | ret = gru_init_tables(gru_start_paddr, gru_start_vaddr); |
| 421 | if (ret) { |
| 422 | printk(KERN_ERR "%s: init tables failed\n", GRU_DRIVER_ID_STR); |
| 423 | goto exit3; |
| 424 | } |
| 425 | |
| 426 | printk(KERN_INFO "%s: v%s\n", GRU_DRIVER_ID_STR, |
| 427 | GRU_DRIVER_VERSION_STR); |
| 428 | return 0; |
| 429 | |
| 430 | exit3: |
| 431 | gru_proc_exit(); |
| 432 | exit2: |
| 433 | misc_deregister(&gru_miscdev); |
| 434 | exit1: |
| 435 | for (--chip; chip >= 0; chip--) |
| 436 | free_irq(irq + chip, NULL); |
| 437 | return ret; |
| 438 | |
| 439 | } |
| 440 | |
| 441 | static void __exit gru_exit(void) |
| 442 | { |
Jack Steiner | 27ca8a7 | 2009-04-02 16:59:11 -0700 | [diff] [blame] | 443 | int i, bid, gid; |
Jack Steiner | 78cf1de | 2008-07-29 22:33:56 -0700 | [diff] [blame] | 444 | int order = get_order(sizeof(struct gru_state) * |
| 445 | GRU_CHIPLETS_PER_BLADE); |
| 446 | |
Dean Nelson | 1c00400 | 2009-02-09 10:25:20 -0600 | [diff] [blame] | 447 | if (!is_uv_system()) |
Robin Holt | 8275d10 | 2008-09-13 02:33:22 -0700 | [diff] [blame] | 448 | return; |
| 449 | |
Jack Steiner | 78cf1de | 2008-07-29 22:33:56 -0700 | [diff] [blame] | 450 | for (i = 0; i < GRU_CHIPLETS_PER_BLADE; i++) |
| 451 | free_irq(IRQ_GRU + i, NULL); |
| 452 | |
Jack Steiner | 27ca8a7 | 2009-04-02 16:59:11 -0700 | [diff] [blame] | 453 | foreach_gid(gid) |
| 454 | gru_kservices_exit(GID_TO_GRU(gid)); |
| 455 | |
Jack Steiner | 78cf1de | 2008-07-29 22:33:56 -0700 | [diff] [blame] | 456 | for (bid = 0; bid < GRU_MAX_BLADES; bid++) |
| 457 | free_pages((unsigned long)gru_base[bid], order); |
| 458 | |
| 459 | misc_deregister(&gru_miscdev); |
| 460 | gru_proc_exit(); |
| 461 | } |
| 462 | |
| 463 | static struct file_operations gru_fops = { |
| 464 | .owner = THIS_MODULE, |
| 465 | .unlocked_ioctl = gru_file_unlocked_ioctl, |
| 466 | .mmap = gru_file_mmap, |
| 467 | }; |
| 468 | |
| 469 | static struct miscdevice gru_miscdev = { |
| 470 | .minor = MISC_DYNAMIC_MINOR, |
| 471 | .name = "gru", |
| 472 | .fops = &gru_fops, |
| 473 | }; |
| 474 | |
| 475 | struct vm_operations_struct gru_vm_ops = { |
| 476 | .close = gru_vma_close, |
| 477 | .fault = gru_fault, |
| 478 | }; |
| 479 | |
Jack Steiner | fe5bb6b | 2009-04-02 16:59:04 -0700 | [diff] [blame] | 480 | #ifndef MODULE |
Dean Nelson | 026bde1 | 2008-12-02 08:06:01 -0600 | [diff] [blame] | 481 | fs_initcall(gru_init); |
Jack Steiner | fe5bb6b | 2009-04-02 16:59:04 -0700 | [diff] [blame] | 482 | #else |
| 483 | module_init(gru_init); |
| 484 | #endif |
Jack Steiner | 78cf1de | 2008-07-29 22:33:56 -0700 | [diff] [blame] | 485 | module_exit(gru_exit); |
| 486 | |
Jack Steiner | 9ca8e40c1 | 2008-07-29 22:34:02 -0700 | [diff] [blame] | 487 | module_param(gru_options, ulong, 0644); |
| 488 | MODULE_PARM_DESC(gru_options, "Various debug options"); |
Jack Steiner | 78cf1de | 2008-07-29 22:33:56 -0700 | [diff] [blame] | 489 | |
| 490 | MODULE_AUTHOR("Silicon Graphics, Inc."); |
| 491 | MODULE_LICENSE("GPL"); |
| 492 | MODULE_DESCRIPTION(GRU_DRIVER_ID_STR GRU_DRIVER_VERSION_STR); |
| 493 | MODULE_VERSION(GRU_DRIVER_VERSION_STR); |
| 494 | |