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67207b96 AB |
1 | /* |
2 | * SPU file system -- file contents | |
3 | * | |
4 | * (C) Copyright IBM Deutschland Entwicklung GmbH 2005 | |
5 | * | |
6 | * Author: Arnd Bergmann <arndb@de.ibm.com> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2, or (at your option) | |
11 | * any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
21 | */ | |
22 | ||
a33a7d73 AB |
23 | #undef DEBUG |
24 | ||
67207b96 AB |
25 | #include <linux/fs.h> |
26 | #include <linux/ioctl.h> | |
27 | #include <linux/module.h> | |
d88cfffa | 28 | #include <linux/pagemap.h> |
67207b96 | 29 | #include <linux/poll.h> |
5110459f | 30 | #include <linux/ptrace.h> |
cbe709c1 | 31 | #include <linux/seq_file.h> |
038200cf | 32 | #include <linux/marker.h> |
67207b96 AB |
33 | |
34 | #include <asm/io.h> | |
35 | #include <asm/semaphore.h> | |
36 | #include <asm/spu.h> | |
b9e3bd77 | 37 | #include <asm/spu_info.h> |
67207b96 AB |
38 | #include <asm/uaccess.h> |
39 | ||
40 | #include "spufs.h" | |
41 | ||
27d5bf2a BH |
42 | #define SPUFS_MMAP_4K (PAGE_SIZE == 0x1000) |
43 | ||
197b1a82 CH |
44 | /* Simple attribute files */ |
45 | struct spufs_attr { | |
46 | int (*get)(void *, u64 *); | |
47 | int (*set)(void *, u64); | |
48 | char get_buf[24]; /* enough to store a u64 and "\n\0" */ | |
49 | char set_buf[24]; | |
50 | void *data; | |
51 | const char *fmt; /* format for read operation */ | |
52 | struct mutex mutex; /* protects access to these buffers */ | |
53 | }; | |
54 | ||
55 | static int spufs_attr_open(struct inode *inode, struct file *file, | |
56 | int (*get)(void *, u64 *), int (*set)(void *, u64), | |
57 | const char *fmt) | |
58 | { | |
59 | struct spufs_attr *attr; | |
60 | ||
61 | attr = kmalloc(sizeof(*attr), GFP_KERNEL); | |
62 | if (!attr) | |
63 | return -ENOMEM; | |
64 | ||
65 | attr->get = get; | |
66 | attr->set = set; | |
67 | attr->data = inode->i_private; | |
68 | attr->fmt = fmt; | |
69 | mutex_init(&attr->mutex); | |
70 | file->private_data = attr; | |
71 | ||
72 | return nonseekable_open(inode, file); | |
73 | } | |
74 | ||
75 | static int spufs_attr_release(struct inode *inode, struct file *file) | |
76 | { | |
77 | kfree(file->private_data); | |
78 | return 0; | |
79 | } | |
80 | ||
81 | static ssize_t spufs_attr_read(struct file *file, char __user *buf, | |
82 | size_t len, loff_t *ppos) | |
83 | { | |
84 | struct spufs_attr *attr; | |
85 | size_t size; | |
86 | ssize_t ret; | |
87 | ||
88 | attr = file->private_data; | |
89 | if (!attr->get) | |
90 | return -EACCES; | |
91 | ||
92 | ret = mutex_lock_interruptible(&attr->mutex); | |
93 | if (ret) | |
94 | return ret; | |
95 | ||
96 | if (*ppos) { /* continued read */ | |
97 | size = strlen(attr->get_buf); | |
98 | } else { /* first read */ | |
99 | u64 val; | |
100 | ret = attr->get(attr->data, &val); | |
101 | if (ret) | |
102 | goto out; | |
103 | ||
104 | size = scnprintf(attr->get_buf, sizeof(attr->get_buf), | |
105 | attr->fmt, (unsigned long long)val); | |
106 | } | |
107 | ||
108 | ret = simple_read_from_buffer(buf, len, ppos, attr->get_buf, size); | |
109 | out: | |
110 | mutex_unlock(&attr->mutex); | |
111 | return ret; | |
112 | } | |
113 | ||
114 | static ssize_t spufs_attr_write(struct file *file, const char __user *buf, | |
115 | size_t len, loff_t *ppos) | |
116 | { | |
117 | struct spufs_attr *attr; | |
118 | u64 val; | |
119 | size_t size; | |
120 | ssize_t ret; | |
121 | ||
122 | attr = file->private_data; | |
123 | if (!attr->set) | |
124 | return -EACCES; | |
125 | ||
126 | ret = mutex_lock_interruptible(&attr->mutex); | |
127 | if (ret) | |
128 | return ret; | |
129 | ||
130 | ret = -EFAULT; | |
131 | size = min(sizeof(attr->set_buf) - 1, len); | |
132 | if (copy_from_user(attr->set_buf, buf, size)) | |
133 | goto out; | |
134 | ||
135 | ret = len; /* claim we got the whole input */ | |
136 | attr->set_buf[size] = '\0'; | |
137 | val = simple_strtol(attr->set_buf, NULL, 0); | |
138 | attr->set(attr->data, val); | |
139 | out: | |
140 | mutex_unlock(&attr->mutex); | |
141 | return ret; | |
142 | } | |
143 | ||
144 | #define DEFINE_SPUFS_SIMPLE_ATTRIBUTE(__fops, __get, __set, __fmt) \ | |
145 | static int __fops ## _open(struct inode *inode, struct file *file) \ | |
146 | { \ | |
147 | __simple_attr_check_format(__fmt, 0ull); \ | |
148 | return spufs_attr_open(inode, file, __get, __set, __fmt); \ | |
149 | } \ | |
150 | static struct file_operations __fops = { \ | |
151 | .owner = THIS_MODULE, \ | |
152 | .open = __fops ## _open, \ | |
153 | .release = spufs_attr_release, \ | |
154 | .read = spufs_attr_read, \ | |
155 | .write = spufs_attr_write, \ | |
156 | }; | |
157 | ||
cbe709c1 | 158 | |
67207b96 AB |
159 | static int |
160 | spufs_mem_open(struct inode *inode, struct file *file) | |
161 | { | |
162 | struct spufs_inode_info *i = SPUFS_I(inode); | |
6df10a82 | 163 | struct spu_context *ctx = i->i_ctx; |
43c2bbd9 | 164 | |
47d3a5fa | 165 | mutex_lock(&ctx->mapping_lock); |
6df10a82 | 166 | file->private_data = ctx; |
43c2bbd9 CH |
167 | if (!i->i_openers++) |
168 | ctx->local_store = inode->i_mapping; | |
47d3a5fa | 169 | mutex_unlock(&ctx->mapping_lock); |
43c2bbd9 CH |
170 | return 0; |
171 | } | |
172 | ||
173 | static int | |
174 | spufs_mem_release(struct inode *inode, struct file *file) | |
175 | { | |
176 | struct spufs_inode_info *i = SPUFS_I(inode); | |
177 | struct spu_context *ctx = i->i_ctx; | |
178 | ||
47d3a5fa | 179 | mutex_lock(&ctx->mapping_lock); |
43c2bbd9 CH |
180 | if (!--i->i_openers) |
181 | ctx->local_store = NULL; | |
47d3a5fa | 182 | mutex_unlock(&ctx->mapping_lock); |
67207b96 AB |
183 | return 0; |
184 | } | |
185 | ||
bf1ab978 DGM |
186 | static ssize_t |
187 | __spufs_mem_read(struct spu_context *ctx, char __user *buffer, | |
188 | size_t size, loff_t *pos) | |
189 | { | |
190 | char *local_store = ctx->ops->get_ls(ctx); | |
191 | return simple_read_from_buffer(buffer, size, pos, local_store, | |
192 | LS_SIZE); | |
193 | } | |
194 | ||
67207b96 AB |
195 | static ssize_t |
196 | spufs_mem_read(struct file *file, char __user *buffer, | |
197 | size_t size, loff_t *pos) | |
198 | { | |
bf1ab978 | 199 | struct spu_context *ctx = file->private_data; |
aa0ed2bd | 200 | ssize_t ret; |
67207b96 | 201 | |
c9101bdb CH |
202 | ret = spu_acquire(ctx); |
203 | if (ret) | |
204 | return ret; | |
bf1ab978 | 205 | ret = __spufs_mem_read(ctx, buffer, size, pos); |
8b3d6663 | 206 | spu_release(ctx); |
c9101bdb | 207 | |
67207b96 AB |
208 | return ret; |
209 | } | |
210 | ||
211 | static ssize_t | |
212 | spufs_mem_write(struct file *file, const char __user *buffer, | |
aa0ed2bd | 213 | size_t size, loff_t *ppos) |
67207b96 AB |
214 | { |
215 | struct spu_context *ctx = file->private_data; | |
8b3d6663 | 216 | char *local_store; |
aa0ed2bd | 217 | loff_t pos = *ppos; |
8b3d6663 | 218 | int ret; |
67207b96 | 219 | |
aa0ed2bd AB |
220 | if (pos < 0) |
221 | return -EINVAL; | |
222 | if (pos > LS_SIZE) | |
67207b96 | 223 | return -EFBIG; |
aa0ed2bd AB |
224 | if (size > LS_SIZE - pos) |
225 | size = LS_SIZE - pos; | |
8b3d6663 | 226 | |
c9101bdb CH |
227 | ret = spu_acquire(ctx); |
228 | if (ret) | |
229 | return ret; | |
230 | ||
8b3d6663 | 231 | local_store = ctx->ops->get_ls(ctx); |
aa0ed2bd | 232 | ret = copy_from_user(local_store + pos, buffer, size); |
8b3d6663 | 233 | spu_release(ctx); |
aa0ed2bd AB |
234 | |
235 | if (ret) | |
236 | return -EFAULT; | |
237 | *ppos = pos + size; | |
238 | return size; | |
67207b96 AB |
239 | } |
240 | ||
78bde53e BH |
241 | static unsigned long spufs_mem_mmap_nopfn(struct vm_area_struct *vma, |
242 | unsigned long address) | |
8b3d6663 | 243 | { |
f1fa74f4 BH |
244 | struct spu_context *ctx = vma->vm_file->private_data; |
245 | unsigned long pfn, offset, addr0 = address; | |
246 | #ifdef CONFIG_SPU_FS_64K_LS | |
247 | struct spu_state *csa = &ctx->csa; | |
248 | int psize; | |
249 | ||
250 | /* Check what page size we are using */ | |
251 | psize = get_slice_psize(vma->vm_mm, address); | |
252 | ||
253 | /* Some sanity checking */ | |
254 | BUG_ON(csa->use_big_pages != (psize == MMU_PAGE_64K)); | |
255 | ||
256 | /* Wow, 64K, cool, we need to align the address though */ | |
257 | if (csa->use_big_pages) { | |
258 | BUG_ON(vma->vm_start & 0xffff); | |
259 | address &= ~0xfffful; | |
260 | } | |
261 | #endif /* CONFIG_SPU_FS_64K_LS */ | |
8b3d6663 | 262 | |
f1fa74f4 | 263 | offset = (address - vma->vm_start) + (vma->vm_pgoff << PAGE_SHIFT); |
128b8546 MN |
264 | if (offset >= LS_SIZE) |
265 | return NOPFN_SIGBUS; | |
266 | ||
f1fa74f4 BH |
267 | pr_debug("spufs_mem_mmap_nopfn address=0x%lx -> 0x%lx, offset=0x%lx\n", |
268 | addr0, address, offset); | |
269 | ||
c9101bdb CH |
270 | if (spu_acquire(ctx)) |
271 | return NOPFN_REFAULT; | |
8b3d6663 | 272 | |
ac91cb8d AB |
273 | if (ctx->state == SPU_STATE_SAVED) { |
274 | vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) | |
932f535d | 275 | & ~_PAGE_NO_CACHE); |
78bde53e | 276 | pfn = vmalloc_to_pfn(ctx->csa.lscsa->ls + offset); |
ac91cb8d AB |
277 | } else { |
278 | vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) | |
78bde53e BH |
279 | | _PAGE_NO_CACHE); |
280 | pfn = (ctx->spu->local_store_phys + offset) >> PAGE_SHIFT; | |
ac91cb8d | 281 | } |
78bde53e | 282 | vm_insert_pfn(vma, address, pfn); |
8b3d6663 | 283 | |
78bde53e | 284 | spu_release(ctx); |
8b3d6663 | 285 | |
78bde53e | 286 | return NOPFN_REFAULT; |
8b3d6663 AB |
287 | } |
288 | ||
78bde53e | 289 | |
8b3d6663 | 290 | static struct vm_operations_struct spufs_mem_mmap_vmops = { |
78bde53e | 291 | .nopfn = spufs_mem_mmap_nopfn, |
8b3d6663 AB |
292 | }; |
293 | ||
f1fa74f4 | 294 | static int spufs_mem_mmap(struct file *file, struct vm_area_struct *vma) |
67207b96 | 295 | { |
f1fa74f4 BH |
296 | #ifdef CONFIG_SPU_FS_64K_LS |
297 | struct spu_context *ctx = file->private_data; | |
298 | struct spu_state *csa = &ctx->csa; | |
299 | ||
300 | /* Sanity check VMA alignment */ | |
301 | if (csa->use_big_pages) { | |
302 | pr_debug("spufs_mem_mmap 64K, start=0x%lx, end=0x%lx," | |
303 | " pgoff=0x%lx\n", vma->vm_start, vma->vm_end, | |
304 | vma->vm_pgoff); | |
305 | if (vma->vm_start & 0xffff) | |
306 | return -EINVAL; | |
307 | if (vma->vm_pgoff & 0xf) | |
308 | return -EINVAL; | |
309 | } | |
310 | #endif /* CONFIG_SPU_FS_64K_LS */ | |
311 | ||
8b3d6663 AB |
312 | if (!(vma->vm_flags & VM_SHARED)) |
313 | return -EINVAL; | |
67207b96 | 314 | |
78bde53e | 315 | vma->vm_flags |= VM_IO | VM_PFNMAP; |
8b3d6663 AB |
316 | vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) |
317 | | _PAGE_NO_CACHE); | |
318 | ||
319 | vma->vm_ops = &spufs_mem_mmap_vmops; | |
67207b96 AB |
320 | return 0; |
321 | } | |
322 | ||
f1fa74f4 | 323 | #ifdef CONFIG_SPU_FS_64K_LS |
1238819a SS |
324 | static unsigned long spufs_get_unmapped_area(struct file *file, |
325 | unsigned long addr, unsigned long len, unsigned long pgoff, | |
326 | unsigned long flags) | |
f1fa74f4 BH |
327 | { |
328 | struct spu_context *ctx = file->private_data; | |
329 | struct spu_state *csa = &ctx->csa; | |
330 | ||
331 | /* If not using big pages, fallback to normal MM g_u_a */ | |
332 | if (!csa->use_big_pages) | |
333 | return current->mm->get_unmapped_area(file, addr, len, | |
334 | pgoff, flags); | |
335 | ||
336 | /* Else, try to obtain a 64K pages slice */ | |
337 | return slice_get_unmapped_area(addr, len, flags, | |
338 | MMU_PAGE_64K, 1, 0); | |
339 | } | |
340 | #endif /* CONFIG_SPU_FS_64K_LS */ | |
341 | ||
5dfe4c96 | 342 | static const struct file_operations spufs_mem_fops = { |
7022543e JK |
343 | .open = spufs_mem_open, |
344 | .release = spufs_mem_release, | |
345 | .read = spufs_mem_read, | |
346 | .write = spufs_mem_write, | |
347 | .llseek = generic_file_llseek, | |
348 | .mmap = spufs_mem_mmap, | |
f1fa74f4 BH |
349 | #ifdef CONFIG_SPU_FS_64K_LS |
350 | .get_unmapped_area = spufs_get_unmapped_area, | |
351 | #endif | |
8b3d6663 AB |
352 | }; |
353 | ||
78bde53e | 354 | static unsigned long spufs_ps_nopfn(struct vm_area_struct *vma, |
6df10a82 | 355 | unsigned long address, |
78bde53e | 356 | unsigned long ps_offs, |
27d5bf2a | 357 | unsigned long ps_size) |
6df10a82 | 358 | { |
6df10a82 | 359 | struct spu_context *ctx = vma->vm_file->private_data; |
78bde53e | 360 | unsigned long area, offset = address - vma->vm_start; |
6df10a82 | 361 | |
038200cf CH |
362 | spu_context_nospu_trace(spufs_ps_nopfn__enter, ctx); |
363 | ||
6df10a82 | 364 | offset += vma->vm_pgoff << PAGE_SHIFT; |
27d5bf2a | 365 | if (offset >= ps_size) |
78bde53e | 366 | return NOPFN_SIGBUS; |
6df10a82 | 367 | |
33bfd7a7 AB |
368 | /* |
369 | * We have to wait for context to be loaded before we have | |
370 | * pages to hand out to the user, but we don't want to wait | |
371 | * with the mmap_sem held. | |
372 | * It is possible to drop the mmap_sem here, but then we need | |
373 | * to return NOPFN_REFAULT because the mappings may have | |
374 | * hanged. | |
78bde53e | 375 | */ |
c9101bdb CH |
376 | if (spu_acquire(ctx)) |
377 | return NOPFN_REFAULT; | |
378 | ||
33bfd7a7 AB |
379 | if (ctx->state == SPU_STATE_SAVED) { |
380 | up_read(¤t->mm->mmap_sem); | |
038200cf | 381 | spu_context_nospu_trace(spufs_ps_nopfn__sleep, ctx); |
33bfd7a7 | 382 | spufs_wait(ctx->run_wq, ctx->state == SPU_STATE_RUNNABLE); |
038200cf | 383 | spu_context_trace(spufs_ps_nopfn__wake, ctx, ctx->spu); |
33bfd7a7 | 384 | down_read(¤t->mm->mmap_sem); |
c9101bdb CH |
385 | } else { |
386 | area = ctx->spu->problem_phys + ps_offs; | |
387 | vm_insert_pfn(vma, address, (area + offset) >> PAGE_SHIFT); | |
038200cf | 388 | spu_context_trace(spufs_ps_nopfn__insert, ctx, ctx->spu); |
33bfd7a7 | 389 | } |
6df10a82 | 390 | |
6df10a82 | 391 | spu_release(ctx); |
78bde53e | 392 | return NOPFN_REFAULT; |
6df10a82 MN |
393 | } |
394 | ||
27d5bf2a | 395 | #if SPUFS_MMAP_4K |
78bde53e BH |
396 | static unsigned long spufs_cntl_mmap_nopfn(struct vm_area_struct *vma, |
397 | unsigned long address) | |
6df10a82 | 398 | { |
78bde53e | 399 | return spufs_ps_nopfn(vma, address, 0x4000, 0x1000); |
6df10a82 MN |
400 | } |
401 | ||
402 | static struct vm_operations_struct spufs_cntl_mmap_vmops = { | |
78bde53e | 403 | .nopfn = spufs_cntl_mmap_nopfn, |
6df10a82 MN |
404 | }; |
405 | ||
406 | /* | |
407 | * mmap support for problem state control area [0x4000 - 0x4fff]. | |
6df10a82 MN |
408 | */ |
409 | static int spufs_cntl_mmap(struct file *file, struct vm_area_struct *vma) | |
410 | { | |
411 | if (!(vma->vm_flags & VM_SHARED)) | |
412 | return -EINVAL; | |
413 | ||
78bde53e | 414 | vma->vm_flags |= VM_IO | VM_PFNMAP; |
6df10a82 | 415 | vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) |
23cc7701 | 416 | | _PAGE_NO_CACHE | _PAGE_GUARDED); |
6df10a82 MN |
417 | |
418 | vma->vm_ops = &spufs_cntl_mmap_vmops; | |
419 | return 0; | |
420 | } | |
27d5bf2a BH |
421 | #else /* SPUFS_MMAP_4K */ |
422 | #define spufs_cntl_mmap NULL | |
423 | #endif /* !SPUFS_MMAP_4K */ | |
6df10a82 | 424 | |
197b1a82 | 425 | static int spufs_cntl_get(void *data, u64 *val) |
6df10a82 | 426 | { |
e1dbff2b | 427 | struct spu_context *ctx = data; |
c9101bdb | 428 | int ret; |
6df10a82 | 429 | |
c9101bdb CH |
430 | ret = spu_acquire(ctx); |
431 | if (ret) | |
432 | return ret; | |
197b1a82 | 433 | *val = ctx->ops->status_read(ctx); |
e1dbff2b AB |
434 | spu_release(ctx); |
435 | ||
197b1a82 | 436 | return 0; |
6df10a82 MN |
437 | } |
438 | ||
197b1a82 | 439 | static int spufs_cntl_set(void *data, u64 val) |
6df10a82 | 440 | { |
e1dbff2b | 441 | struct spu_context *ctx = data; |
c9101bdb | 442 | int ret; |
e1dbff2b | 443 | |
c9101bdb CH |
444 | ret = spu_acquire(ctx); |
445 | if (ret) | |
446 | return ret; | |
e1dbff2b AB |
447 | ctx->ops->runcntl_write(ctx, val); |
448 | spu_release(ctx); | |
197b1a82 CH |
449 | |
450 | return 0; | |
6df10a82 MN |
451 | } |
452 | ||
e1dbff2b | 453 | static int spufs_cntl_open(struct inode *inode, struct file *file) |
6df10a82 | 454 | { |
e1dbff2b AB |
455 | struct spufs_inode_info *i = SPUFS_I(inode); |
456 | struct spu_context *ctx = i->i_ctx; | |
457 | ||
47d3a5fa | 458 | mutex_lock(&ctx->mapping_lock); |
e1dbff2b | 459 | file->private_data = ctx; |
43c2bbd9 CH |
460 | if (!i->i_openers++) |
461 | ctx->cntl = inode->i_mapping; | |
47d3a5fa | 462 | mutex_unlock(&ctx->mapping_lock); |
197b1a82 | 463 | return spufs_attr_open(inode, file, spufs_cntl_get, |
e1dbff2b | 464 | spufs_cntl_set, "0x%08lx"); |
6df10a82 MN |
465 | } |
466 | ||
43c2bbd9 CH |
467 | static int |
468 | spufs_cntl_release(struct inode *inode, struct file *file) | |
469 | { | |
470 | struct spufs_inode_info *i = SPUFS_I(inode); | |
471 | struct spu_context *ctx = i->i_ctx; | |
472 | ||
197b1a82 | 473 | spufs_attr_release(inode, file); |
43c2bbd9 | 474 | |
47d3a5fa | 475 | mutex_lock(&ctx->mapping_lock); |
43c2bbd9 CH |
476 | if (!--i->i_openers) |
477 | ctx->cntl = NULL; | |
47d3a5fa | 478 | mutex_unlock(&ctx->mapping_lock); |
43c2bbd9 CH |
479 | return 0; |
480 | } | |
481 | ||
5dfe4c96 | 482 | static const struct file_operations spufs_cntl_fops = { |
6df10a82 | 483 | .open = spufs_cntl_open, |
43c2bbd9 | 484 | .release = spufs_cntl_release, |
197b1a82 CH |
485 | .read = spufs_attr_read, |
486 | .write = spufs_attr_write, | |
6df10a82 | 487 | .mmap = spufs_cntl_mmap, |
6df10a82 MN |
488 | }; |
489 | ||
8b3d6663 AB |
490 | static int |
491 | spufs_regs_open(struct inode *inode, struct file *file) | |
492 | { | |
493 | struct spufs_inode_info *i = SPUFS_I(inode); | |
494 | file->private_data = i->i_ctx; | |
495 | return 0; | |
496 | } | |
497 | ||
bf1ab978 DGM |
498 | static ssize_t |
499 | __spufs_regs_read(struct spu_context *ctx, char __user *buffer, | |
500 | size_t size, loff_t *pos) | |
501 | { | |
502 | struct spu_lscsa *lscsa = ctx->csa.lscsa; | |
503 | return simple_read_from_buffer(buffer, size, pos, | |
504 | lscsa->gprs, sizeof lscsa->gprs); | |
505 | } | |
506 | ||
8b3d6663 AB |
507 | static ssize_t |
508 | spufs_regs_read(struct file *file, char __user *buffer, | |
509 | size_t size, loff_t *pos) | |
510 | { | |
8b3d6663 | 511 | int ret; |
bf1ab978 | 512 | struct spu_context *ctx = file->private_data; |
8b3d6663 | 513 | |
c9101bdb CH |
514 | ret = spu_acquire_saved(ctx); |
515 | if (ret) | |
516 | return ret; | |
bf1ab978 | 517 | ret = __spufs_regs_read(ctx, buffer, size, pos); |
27b1ea09 | 518 | spu_release_saved(ctx); |
8b3d6663 AB |
519 | return ret; |
520 | } | |
521 | ||
522 | static ssize_t | |
523 | spufs_regs_write(struct file *file, const char __user *buffer, | |
524 | size_t size, loff_t *pos) | |
525 | { | |
526 | struct spu_context *ctx = file->private_data; | |
527 | struct spu_lscsa *lscsa = ctx->csa.lscsa; | |
528 | int ret; | |
529 | ||
530 | size = min_t(ssize_t, sizeof lscsa->gprs - *pos, size); | |
531 | if (size <= 0) | |
532 | return -EFBIG; | |
533 | *pos += size; | |
534 | ||
c9101bdb CH |
535 | ret = spu_acquire_saved(ctx); |
536 | if (ret) | |
537 | return ret; | |
8b3d6663 AB |
538 | |
539 | ret = copy_from_user(lscsa->gprs + *pos - size, | |
540 | buffer, size) ? -EFAULT : size; | |
541 | ||
27b1ea09 | 542 | spu_release_saved(ctx); |
8b3d6663 AB |
543 | return ret; |
544 | } | |
545 | ||
5dfe4c96 | 546 | static const struct file_operations spufs_regs_fops = { |
8b3d6663 AB |
547 | .open = spufs_regs_open, |
548 | .read = spufs_regs_read, | |
549 | .write = spufs_regs_write, | |
67207b96 AB |
550 | .llseek = generic_file_llseek, |
551 | }; | |
552 | ||
bf1ab978 DGM |
553 | static ssize_t |
554 | __spufs_fpcr_read(struct spu_context *ctx, char __user * buffer, | |
555 | size_t size, loff_t * pos) | |
556 | { | |
557 | struct spu_lscsa *lscsa = ctx->csa.lscsa; | |
558 | return simple_read_from_buffer(buffer, size, pos, | |
559 | &lscsa->fpcr, sizeof(lscsa->fpcr)); | |
560 | } | |
561 | ||
8b3d6663 AB |
562 | static ssize_t |
563 | spufs_fpcr_read(struct file *file, char __user * buffer, | |
564 | size_t size, loff_t * pos) | |
565 | { | |
8b3d6663 | 566 | int ret; |
bf1ab978 | 567 | struct spu_context *ctx = file->private_data; |
8b3d6663 | 568 | |
c9101bdb CH |
569 | ret = spu_acquire_saved(ctx); |
570 | if (ret) | |
571 | return ret; | |
bf1ab978 | 572 | ret = __spufs_fpcr_read(ctx, buffer, size, pos); |
27b1ea09 | 573 | spu_release_saved(ctx); |
8b3d6663 AB |
574 | return ret; |
575 | } | |
576 | ||
577 | static ssize_t | |
578 | spufs_fpcr_write(struct file *file, const char __user * buffer, | |
579 | size_t size, loff_t * pos) | |
580 | { | |
581 | struct spu_context *ctx = file->private_data; | |
582 | struct spu_lscsa *lscsa = ctx->csa.lscsa; | |
583 | int ret; | |
584 | ||
585 | size = min_t(ssize_t, sizeof(lscsa->fpcr) - *pos, size); | |
586 | if (size <= 0) | |
587 | return -EFBIG; | |
8b3d6663 | 588 | |
c9101bdb CH |
589 | ret = spu_acquire_saved(ctx); |
590 | if (ret) | |
591 | return ret; | |
8b3d6663 | 592 | |
c9101bdb | 593 | *pos += size; |
8b3d6663 AB |
594 | ret = copy_from_user((char *)&lscsa->fpcr + *pos - size, |
595 | buffer, size) ? -EFAULT : size; | |
596 | ||
27b1ea09 | 597 | spu_release_saved(ctx); |
8b3d6663 AB |
598 | return ret; |
599 | } | |
600 | ||
5dfe4c96 | 601 | static const struct file_operations spufs_fpcr_fops = { |
8b3d6663 AB |
602 | .open = spufs_regs_open, |
603 | .read = spufs_fpcr_read, | |
604 | .write = spufs_fpcr_write, | |
605 | .llseek = generic_file_llseek, | |
606 | }; | |
607 | ||
67207b96 AB |
608 | /* generic open function for all pipe-like files */ |
609 | static int spufs_pipe_open(struct inode *inode, struct file *file) | |
610 | { | |
611 | struct spufs_inode_info *i = SPUFS_I(inode); | |
612 | file->private_data = i->i_ctx; | |
613 | ||
614 | return nonseekable_open(inode, file); | |
615 | } | |
616 | ||
cdcc89bb AB |
617 | /* |
618 | * Read as many bytes from the mailbox as possible, until | |
619 | * one of the conditions becomes true: | |
620 | * | |
621 | * - no more data available in the mailbox | |
622 | * - end of the user provided buffer | |
623 | * - end of the mapped area | |
624 | */ | |
67207b96 AB |
625 | static ssize_t spufs_mbox_read(struct file *file, char __user *buf, |
626 | size_t len, loff_t *pos) | |
627 | { | |
8b3d6663 | 628 | struct spu_context *ctx = file->private_data; |
cdcc89bb AB |
629 | u32 mbox_data, __user *udata; |
630 | ssize_t count; | |
67207b96 AB |
631 | |
632 | if (len < 4) | |
633 | return -EINVAL; | |
634 | ||
cdcc89bb AB |
635 | if (!access_ok(VERIFY_WRITE, buf, len)) |
636 | return -EFAULT; | |
637 | ||
638 | udata = (void __user *)buf; | |
639 | ||
c9101bdb CH |
640 | count = spu_acquire(ctx); |
641 | if (count) | |
642 | return count; | |
643 | ||
274cef5e | 644 | for (count = 0; (count + 4) <= len; count += 4, udata++) { |
cdcc89bb AB |
645 | int ret; |
646 | ret = ctx->ops->mbox_read(ctx, &mbox_data); | |
647 | if (ret == 0) | |
648 | break; | |
649 | ||
650 | /* | |
651 | * at the end of the mapped area, we can fault | |
652 | * but still need to return the data we have | |
653 | * read successfully so far. | |
654 | */ | |
655 | ret = __put_user(mbox_data, udata); | |
656 | if (ret) { | |
657 | if (!count) | |
658 | count = -EFAULT; | |
659 | break; | |
660 | } | |
661 | } | |
8b3d6663 | 662 | spu_release(ctx); |
67207b96 | 663 | |
cdcc89bb AB |
664 | if (!count) |
665 | count = -EAGAIN; | |
67207b96 | 666 | |
cdcc89bb | 667 | return count; |
67207b96 AB |
668 | } |
669 | ||
5dfe4c96 | 670 | static const struct file_operations spufs_mbox_fops = { |
67207b96 AB |
671 | .open = spufs_pipe_open, |
672 | .read = spufs_mbox_read, | |
673 | }; | |
674 | ||
675 | static ssize_t spufs_mbox_stat_read(struct file *file, char __user *buf, | |
676 | size_t len, loff_t *pos) | |
677 | { | |
8b3d6663 | 678 | struct spu_context *ctx = file->private_data; |
c9101bdb | 679 | ssize_t ret; |
67207b96 AB |
680 | u32 mbox_stat; |
681 | ||
682 | if (len < 4) | |
683 | return -EINVAL; | |
684 | ||
c9101bdb CH |
685 | ret = spu_acquire(ctx); |
686 | if (ret) | |
687 | return ret; | |
8b3d6663 AB |
688 | |
689 | mbox_stat = ctx->ops->mbox_stat_read(ctx) & 0xff; | |
690 | ||
691 | spu_release(ctx); | |
67207b96 AB |
692 | |
693 | if (copy_to_user(buf, &mbox_stat, sizeof mbox_stat)) | |
694 | return -EFAULT; | |
695 | ||
696 | return 4; | |
697 | } | |
698 | ||
5dfe4c96 | 699 | static const struct file_operations spufs_mbox_stat_fops = { |
67207b96 AB |
700 | .open = spufs_pipe_open, |
701 | .read = spufs_mbox_stat_read, | |
702 | }; | |
703 | ||
704 | /* low-level ibox access function */ | |
8b3d6663 | 705 | size_t spu_ibox_read(struct spu_context *ctx, u32 *data) |
67207b96 | 706 | { |
8b3d6663 AB |
707 | return ctx->ops->ibox_read(ctx, data); |
708 | } | |
67207b96 | 709 | |
8b3d6663 AB |
710 | static int spufs_ibox_fasync(int fd, struct file *file, int on) |
711 | { | |
712 | struct spu_context *ctx = file->private_data; | |
67207b96 | 713 | |
8b3d6663 | 714 | return fasync_helper(fd, file, on, &ctx->ibox_fasync); |
67207b96 | 715 | } |
67207b96 | 716 | |
8b3d6663 AB |
717 | /* interrupt-level ibox callback function. */ |
718 | void spufs_ibox_callback(struct spu *spu) | |
67207b96 | 719 | { |
8b3d6663 AB |
720 | struct spu_context *ctx = spu->ctx; |
721 | ||
e65c2f6f LB |
722 | if (!ctx) |
723 | return; | |
724 | ||
8b3d6663 AB |
725 | wake_up_all(&ctx->ibox_wq); |
726 | kill_fasync(&ctx->ibox_fasync, SIGIO, POLLIN); | |
67207b96 AB |
727 | } |
728 | ||
cdcc89bb AB |
729 | /* |
730 | * Read as many bytes from the interrupt mailbox as possible, until | |
731 | * one of the conditions becomes true: | |
732 | * | |
733 | * - no more data available in the mailbox | |
734 | * - end of the user provided buffer | |
735 | * - end of the mapped area | |
736 | * | |
737 | * If the file is opened without O_NONBLOCK, we wait here until | |
738 | * any data is available, but return when we have been able to | |
739 | * read something. | |
740 | */ | |
67207b96 AB |
741 | static ssize_t spufs_ibox_read(struct file *file, char __user *buf, |
742 | size_t len, loff_t *pos) | |
743 | { | |
8b3d6663 | 744 | struct spu_context *ctx = file->private_data; |
cdcc89bb AB |
745 | u32 ibox_data, __user *udata; |
746 | ssize_t count; | |
67207b96 AB |
747 | |
748 | if (len < 4) | |
749 | return -EINVAL; | |
750 | ||
cdcc89bb AB |
751 | if (!access_ok(VERIFY_WRITE, buf, len)) |
752 | return -EFAULT; | |
753 | ||
754 | udata = (void __user *)buf; | |
755 | ||
c9101bdb CH |
756 | count = spu_acquire(ctx); |
757 | if (count) | |
758 | return count; | |
67207b96 | 759 | |
cdcc89bb AB |
760 | /* wait only for the first element */ |
761 | count = 0; | |
67207b96 | 762 | if (file->f_flags & O_NONBLOCK) { |
8b3d6663 | 763 | if (!spu_ibox_read(ctx, &ibox_data)) |
cdcc89bb | 764 | count = -EAGAIN; |
67207b96 | 765 | } else { |
cdcc89bb | 766 | count = spufs_wait(ctx->ibox_wq, spu_ibox_read(ctx, &ibox_data)); |
67207b96 | 767 | } |
cdcc89bb AB |
768 | if (count) |
769 | goto out; | |
67207b96 | 770 | |
cdcc89bb AB |
771 | /* if we can't write at all, return -EFAULT */ |
772 | count = __put_user(ibox_data, udata); | |
773 | if (count) | |
774 | goto out; | |
8b3d6663 | 775 | |
cdcc89bb AB |
776 | for (count = 4, udata++; (count + 4) <= len; count += 4, udata++) { |
777 | int ret; | |
778 | ret = ctx->ops->ibox_read(ctx, &ibox_data); | |
779 | if (ret == 0) | |
780 | break; | |
781 | /* | |
782 | * at the end of the mapped area, we can fault | |
783 | * but still need to return the data we have | |
784 | * read successfully so far. | |
785 | */ | |
786 | ret = __put_user(ibox_data, udata); | |
787 | if (ret) | |
788 | break; | |
789 | } | |
67207b96 | 790 | |
cdcc89bb AB |
791 | out: |
792 | spu_release(ctx); | |
67207b96 | 793 | |
cdcc89bb | 794 | return count; |
67207b96 AB |
795 | } |
796 | ||
797 | static unsigned int spufs_ibox_poll(struct file *file, poll_table *wait) | |
798 | { | |
8b3d6663 | 799 | struct spu_context *ctx = file->private_data; |
67207b96 AB |
800 | unsigned int mask; |
801 | ||
8b3d6663 | 802 | poll_wait(file, &ctx->ibox_wq, wait); |
67207b96 | 803 | |
c9101bdb CH |
804 | /* |
805 | * For now keep this uninterruptible and also ignore the rule | |
806 | * that poll should not sleep. Will be fixed later. | |
807 | */ | |
808 | mutex_lock(&ctx->state_mutex); | |
3a843d7c AB |
809 | mask = ctx->ops->mbox_stat_poll(ctx, POLLIN | POLLRDNORM); |
810 | spu_release(ctx); | |
67207b96 AB |
811 | |
812 | return mask; | |
813 | } | |
814 | ||
5dfe4c96 | 815 | static const struct file_operations spufs_ibox_fops = { |
67207b96 AB |
816 | .open = spufs_pipe_open, |
817 | .read = spufs_ibox_read, | |
818 | .poll = spufs_ibox_poll, | |
819 | .fasync = spufs_ibox_fasync, | |
820 | }; | |
821 | ||
822 | static ssize_t spufs_ibox_stat_read(struct file *file, char __user *buf, | |
823 | size_t len, loff_t *pos) | |
824 | { | |
8b3d6663 | 825 | struct spu_context *ctx = file->private_data; |
c9101bdb | 826 | ssize_t ret; |
67207b96 AB |
827 | u32 ibox_stat; |
828 | ||
829 | if (len < 4) | |
830 | return -EINVAL; | |
831 | ||
c9101bdb CH |
832 | ret = spu_acquire(ctx); |
833 | if (ret) | |
834 | return ret; | |
8b3d6663 AB |
835 | ibox_stat = (ctx->ops->mbox_stat_read(ctx) >> 16) & 0xff; |
836 | spu_release(ctx); | |
67207b96 AB |
837 | |
838 | if (copy_to_user(buf, &ibox_stat, sizeof ibox_stat)) | |
839 | return -EFAULT; | |
840 | ||
841 | return 4; | |
842 | } | |
843 | ||
5dfe4c96 | 844 | static const struct file_operations spufs_ibox_stat_fops = { |
67207b96 AB |
845 | .open = spufs_pipe_open, |
846 | .read = spufs_ibox_stat_read, | |
847 | }; | |
848 | ||
849 | /* low-level mailbox write */ | |
8b3d6663 | 850 | size_t spu_wbox_write(struct spu_context *ctx, u32 data) |
67207b96 | 851 | { |
8b3d6663 AB |
852 | return ctx->ops->wbox_write(ctx, data); |
853 | } | |
67207b96 | 854 | |
8b3d6663 AB |
855 | static int spufs_wbox_fasync(int fd, struct file *file, int on) |
856 | { | |
857 | struct spu_context *ctx = file->private_data; | |
858 | int ret; | |
67207b96 | 859 | |
8b3d6663 | 860 | ret = fasync_helper(fd, file, on, &ctx->wbox_fasync); |
67207b96 | 861 | |
67207b96 AB |
862 | return ret; |
863 | } | |
67207b96 | 864 | |
8b3d6663 AB |
865 | /* interrupt-level wbox callback function. */ |
866 | void spufs_wbox_callback(struct spu *spu) | |
67207b96 | 867 | { |
8b3d6663 AB |
868 | struct spu_context *ctx = spu->ctx; |
869 | ||
e65c2f6f LB |
870 | if (!ctx) |
871 | return; | |
872 | ||
8b3d6663 AB |
873 | wake_up_all(&ctx->wbox_wq); |
874 | kill_fasync(&ctx->wbox_fasync, SIGIO, POLLOUT); | |
67207b96 AB |
875 | } |
876 | ||
cdcc89bb AB |
877 | /* |
878 | * Write as many bytes to the interrupt mailbox as possible, until | |
879 | * one of the conditions becomes true: | |
880 | * | |
881 | * - the mailbox is full | |
882 | * - end of the user provided buffer | |
883 | * - end of the mapped area | |
884 | * | |
885 | * If the file is opened without O_NONBLOCK, we wait here until | |
886 | * space is availabyl, but return when we have been able to | |
887 | * write something. | |
888 | */ | |
67207b96 AB |
889 | static ssize_t spufs_wbox_write(struct file *file, const char __user *buf, |
890 | size_t len, loff_t *pos) | |
891 | { | |
8b3d6663 | 892 | struct spu_context *ctx = file->private_data; |
cdcc89bb AB |
893 | u32 wbox_data, __user *udata; |
894 | ssize_t count; | |
67207b96 AB |
895 | |
896 | if (len < 4) | |
897 | return -EINVAL; | |
898 | ||
cdcc89bb AB |
899 | udata = (void __user *)buf; |
900 | if (!access_ok(VERIFY_READ, buf, len)) | |
901 | return -EFAULT; | |
902 | ||
903 | if (__get_user(wbox_data, udata)) | |
67207b96 AB |
904 | return -EFAULT; |
905 | ||
c9101bdb CH |
906 | count = spu_acquire(ctx); |
907 | if (count) | |
908 | return count; | |
8b3d6663 | 909 | |
cdcc89bb AB |
910 | /* |
911 | * make sure we can at least write one element, by waiting | |
912 | * in case of !O_NONBLOCK | |
913 | */ | |
914 | count = 0; | |
67207b96 | 915 | if (file->f_flags & O_NONBLOCK) { |
8b3d6663 | 916 | if (!spu_wbox_write(ctx, wbox_data)) |
cdcc89bb | 917 | count = -EAGAIN; |
67207b96 | 918 | } else { |
cdcc89bb | 919 | count = spufs_wait(ctx->wbox_wq, spu_wbox_write(ctx, wbox_data)); |
67207b96 AB |
920 | } |
921 | ||
cdcc89bb AB |
922 | if (count) |
923 | goto out; | |
8b3d6663 | 924 | |
96de0e25 | 925 | /* write as much as possible */ |
cdcc89bb AB |
926 | for (count = 4, udata++; (count + 4) <= len; count += 4, udata++) { |
927 | int ret; | |
928 | ret = __get_user(wbox_data, udata); | |
929 | if (ret) | |
930 | break; | |
931 | ||
932 | ret = spu_wbox_write(ctx, wbox_data); | |
933 | if (ret == 0) | |
934 | break; | |
935 | } | |
936 | ||
937 | out: | |
938 | spu_release(ctx); | |
939 | return count; | |
67207b96 AB |
940 | } |
941 | ||
942 | static unsigned int spufs_wbox_poll(struct file *file, poll_table *wait) | |
943 | { | |
8b3d6663 | 944 | struct spu_context *ctx = file->private_data; |
67207b96 AB |
945 | unsigned int mask; |
946 | ||
8b3d6663 | 947 | poll_wait(file, &ctx->wbox_wq, wait); |
67207b96 | 948 | |
c9101bdb CH |
949 | /* |
950 | * For now keep this uninterruptible and also ignore the rule | |
951 | * that poll should not sleep. Will be fixed later. | |
952 | */ | |
953 | mutex_lock(&ctx->state_mutex); | |
3a843d7c AB |
954 | mask = ctx->ops->mbox_stat_poll(ctx, POLLOUT | POLLWRNORM); |
955 | spu_release(ctx); | |
67207b96 AB |
956 | |
957 | return mask; | |
958 | } | |
959 | ||
5dfe4c96 | 960 | static const struct file_operations spufs_wbox_fops = { |
67207b96 AB |
961 | .open = spufs_pipe_open, |
962 | .write = spufs_wbox_write, | |
963 | .poll = spufs_wbox_poll, | |
964 | .fasync = spufs_wbox_fasync, | |
965 | }; | |
966 | ||
967 | static ssize_t spufs_wbox_stat_read(struct file *file, char __user *buf, | |
968 | size_t len, loff_t *pos) | |
969 | { | |
8b3d6663 | 970 | struct spu_context *ctx = file->private_data; |
c9101bdb | 971 | ssize_t ret; |
67207b96 AB |
972 | u32 wbox_stat; |
973 | ||
974 | if (len < 4) | |
975 | return -EINVAL; | |
976 | ||
c9101bdb CH |
977 | ret = spu_acquire(ctx); |
978 | if (ret) | |
979 | return ret; | |
8b3d6663 AB |
980 | wbox_stat = (ctx->ops->mbox_stat_read(ctx) >> 8) & 0xff; |
981 | spu_release(ctx); | |
67207b96 AB |
982 | |
983 | if (copy_to_user(buf, &wbox_stat, sizeof wbox_stat)) | |
984 | return -EFAULT; | |
985 | ||
986 | return 4; | |
987 | } | |
988 | ||
5dfe4c96 | 989 | static const struct file_operations spufs_wbox_stat_fops = { |
67207b96 AB |
990 | .open = spufs_pipe_open, |
991 | .read = spufs_wbox_stat_read, | |
992 | }; | |
993 | ||
6df10a82 MN |
994 | static int spufs_signal1_open(struct inode *inode, struct file *file) |
995 | { | |
996 | struct spufs_inode_info *i = SPUFS_I(inode); | |
997 | struct spu_context *ctx = i->i_ctx; | |
43c2bbd9 | 998 | |
47d3a5fa | 999 | mutex_lock(&ctx->mapping_lock); |
6df10a82 | 1000 | file->private_data = ctx; |
43c2bbd9 CH |
1001 | if (!i->i_openers++) |
1002 | ctx->signal1 = inode->i_mapping; | |
47d3a5fa | 1003 | mutex_unlock(&ctx->mapping_lock); |
6df10a82 MN |
1004 | return nonseekable_open(inode, file); |
1005 | } | |
1006 | ||
43c2bbd9 CH |
1007 | static int |
1008 | spufs_signal1_release(struct inode *inode, struct file *file) | |
1009 | { | |
1010 | struct spufs_inode_info *i = SPUFS_I(inode); | |
1011 | struct spu_context *ctx = i->i_ctx; | |
1012 | ||
47d3a5fa | 1013 | mutex_lock(&ctx->mapping_lock); |
43c2bbd9 CH |
1014 | if (!--i->i_openers) |
1015 | ctx->signal1 = NULL; | |
47d3a5fa | 1016 | mutex_unlock(&ctx->mapping_lock); |
43c2bbd9 CH |
1017 | return 0; |
1018 | } | |
1019 | ||
bf1ab978 | 1020 | static ssize_t __spufs_signal1_read(struct spu_context *ctx, char __user *buf, |
67207b96 AB |
1021 | size_t len, loff_t *pos) |
1022 | { | |
17f88ceb | 1023 | int ret = 0; |
67207b96 AB |
1024 | u32 data; |
1025 | ||
67207b96 AB |
1026 | if (len < 4) |
1027 | return -EINVAL; | |
1028 | ||
17f88ceb DGM |
1029 | if (ctx->csa.spu_chnlcnt_RW[3]) { |
1030 | data = ctx->csa.spu_chnldata_RW[3]; | |
1031 | ret = 4; | |
1032 | } | |
8b3d6663 | 1033 | |
17f88ceb DGM |
1034 | if (!ret) |
1035 | goto out; | |
1036 | ||
67207b96 AB |
1037 | if (copy_to_user(buf, &data, 4)) |
1038 | return -EFAULT; | |
1039 | ||
17f88ceb DGM |
1040 | out: |
1041 | return ret; | |
67207b96 AB |
1042 | } |
1043 | ||
bf1ab978 DGM |
1044 | static ssize_t spufs_signal1_read(struct file *file, char __user *buf, |
1045 | size_t len, loff_t *pos) | |
1046 | { | |
1047 | int ret; | |
1048 | struct spu_context *ctx = file->private_data; | |
1049 | ||
c9101bdb CH |
1050 | ret = spu_acquire_saved(ctx); |
1051 | if (ret) | |
1052 | return ret; | |
bf1ab978 | 1053 | ret = __spufs_signal1_read(ctx, buf, len, pos); |
27b1ea09 | 1054 | spu_release_saved(ctx); |
bf1ab978 DGM |
1055 | |
1056 | return ret; | |
1057 | } | |
1058 | ||
67207b96 AB |
1059 | static ssize_t spufs_signal1_write(struct file *file, const char __user *buf, |
1060 | size_t len, loff_t *pos) | |
1061 | { | |
1062 | struct spu_context *ctx; | |
c9101bdb | 1063 | ssize_t ret; |
67207b96 AB |
1064 | u32 data; |
1065 | ||
1066 | ctx = file->private_data; | |
67207b96 AB |
1067 | |
1068 | if (len < 4) | |
1069 | return -EINVAL; | |
1070 | ||
1071 | if (copy_from_user(&data, buf, 4)) | |
1072 | return -EFAULT; | |
1073 | ||
c9101bdb CH |
1074 | ret = spu_acquire(ctx); |
1075 | if (ret) | |
1076 | return ret; | |
8b3d6663 AB |
1077 | ctx->ops->signal1_write(ctx, data); |
1078 | spu_release(ctx); | |
67207b96 AB |
1079 | |
1080 | return 4; | |
1081 | } | |
1082 | ||
78bde53e BH |
1083 | static unsigned long spufs_signal1_mmap_nopfn(struct vm_area_struct *vma, |
1084 | unsigned long address) | |
6df10a82 | 1085 | { |
27d5bf2a | 1086 | #if PAGE_SIZE == 0x1000 |
78bde53e | 1087 | return spufs_ps_nopfn(vma, address, 0x14000, 0x1000); |
27d5bf2a BH |
1088 | #elif PAGE_SIZE == 0x10000 |
1089 | /* For 64k pages, both signal1 and signal2 can be used to mmap the whole | |
1090 | * signal 1 and 2 area | |
1091 | */ | |
78bde53e | 1092 | return spufs_ps_nopfn(vma, address, 0x10000, 0x10000); |
27d5bf2a BH |
1093 | #else |
1094 | #error unsupported page size | |
1095 | #endif | |
6df10a82 MN |
1096 | } |
1097 | ||
1098 | static struct vm_operations_struct spufs_signal1_mmap_vmops = { | |
78bde53e | 1099 | .nopfn = spufs_signal1_mmap_nopfn, |
6df10a82 MN |
1100 | }; |
1101 | ||
1102 | static int spufs_signal1_mmap(struct file *file, struct vm_area_struct *vma) | |
1103 | { | |
1104 | if (!(vma->vm_flags & VM_SHARED)) | |
1105 | return -EINVAL; | |
1106 | ||
78bde53e | 1107 | vma->vm_flags |= VM_IO | VM_PFNMAP; |
6df10a82 | 1108 | vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) |
23cc7701 | 1109 | | _PAGE_NO_CACHE | _PAGE_GUARDED); |
6df10a82 MN |
1110 | |
1111 | vma->vm_ops = &spufs_signal1_mmap_vmops; | |
1112 | return 0; | |
1113 | } | |
6df10a82 | 1114 | |
5dfe4c96 | 1115 | static const struct file_operations spufs_signal1_fops = { |
6df10a82 | 1116 | .open = spufs_signal1_open, |
43c2bbd9 | 1117 | .release = spufs_signal1_release, |
67207b96 AB |
1118 | .read = spufs_signal1_read, |
1119 | .write = spufs_signal1_write, | |
6df10a82 | 1120 | .mmap = spufs_signal1_mmap, |
67207b96 AB |
1121 | }; |
1122 | ||
d054b36f JK |
1123 | static const struct file_operations spufs_signal1_nosched_fops = { |
1124 | .open = spufs_signal1_open, | |
1125 | .release = spufs_signal1_release, | |
1126 | .write = spufs_signal1_write, | |
1127 | .mmap = spufs_signal1_mmap, | |
1128 | }; | |
1129 | ||
6df10a82 MN |
1130 | static int spufs_signal2_open(struct inode *inode, struct file *file) |
1131 | { | |
1132 | struct spufs_inode_info *i = SPUFS_I(inode); | |
1133 | struct spu_context *ctx = i->i_ctx; | |
43c2bbd9 | 1134 | |
47d3a5fa | 1135 | mutex_lock(&ctx->mapping_lock); |
6df10a82 | 1136 | file->private_data = ctx; |
43c2bbd9 CH |
1137 | if (!i->i_openers++) |
1138 | ctx->signal2 = inode->i_mapping; | |
47d3a5fa | 1139 | mutex_unlock(&ctx->mapping_lock); |
6df10a82 MN |
1140 | return nonseekable_open(inode, file); |
1141 | } | |
1142 | ||
43c2bbd9 CH |
1143 | static int |
1144 | spufs_signal2_release(struct inode *inode, struct file *file) | |
1145 | { | |
1146 | struct spufs_inode_info *i = SPUFS_I(inode); | |
1147 | struct spu_context *ctx = i->i_ctx; | |
1148 | ||
47d3a5fa | 1149 | mutex_lock(&ctx->mapping_lock); |
43c2bbd9 CH |
1150 | if (!--i->i_openers) |
1151 | ctx->signal2 = NULL; | |
47d3a5fa | 1152 | mutex_unlock(&ctx->mapping_lock); |
43c2bbd9 CH |
1153 | return 0; |
1154 | } | |
1155 | ||
bf1ab978 | 1156 | static ssize_t __spufs_signal2_read(struct spu_context *ctx, char __user *buf, |
67207b96 AB |
1157 | size_t len, loff_t *pos) |
1158 | { | |
17f88ceb | 1159 | int ret = 0; |
67207b96 AB |
1160 | u32 data; |
1161 | ||
67207b96 AB |
1162 | if (len < 4) |
1163 | return -EINVAL; | |
1164 | ||
17f88ceb DGM |
1165 | if (ctx->csa.spu_chnlcnt_RW[4]) { |
1166 | data = ctx->csa.spu_chnldata_RW[4]; | |
1167 | ret = 4; | |
1168 | } | |
8b3d6663 | 1169 | |
17f88ceb DGM |
1170 | if (!ret) |
1171 | goto out; | |
1172 | ||
67207b96 AB |
1173 | if (copy_to_user(buf, &data, 4)) |
1174 | return -EFAULT; | |
1175 | ||
17f88ceb | 1176 | out: |
bf1ab978 DGM |
1177 | return ret; |
1178 | } | |
1179 | ||
1180 | static ssize_t spufs_signal2_read(struct file *file, char __user *buf, | |
1181 | size_t len, loff_t *pos) | |
1182 | { | |
1183 | struct spu_context *ctx = file->private_data; | |
1184 | int ret; | |
1185 | ||
c9101bdb CH |
1186 | ret = spu_acquire_saved(ctx); |
1187 | if (ret) | |
1188 | return ret; | |
bf1ab978 | 1189 | ret = __spufs_signal2_read(ctx, buf, len, pos); |
27b1ea09 | 1190 | spu_release_saved(ctx); |
bf1ab978 DGM |
1191 | |
1192 | return ret; | |
67207b96 AB |
1193 | } |
1194 | ||
1195 | static ssize_t spufs_signal2_write(struct file *file, const char __user *buf, | |
1196 | size_t len, loff_t *pos) | |
1197 | { | |
1198 | struct spu_context *ctx; | |
c9101bdb | 1199 | ssize_t ret; |
67207b96 AB |
1200 | u32 data; |
1201 | ||
1202 | ctx = file->private_data; | |
67207b96 AB |
1203 | |
1204 | if (len < 4) | |
1205 | return -EINVAL; | |
1206 | ||
1207 | if (copy_from_user(&data, buf, 4)) | |
1208 | return -EFAULT; | |
1209 | ||
c9101bdb CH |
1210 | ret = spu_acquire(ctx); |
1211 | if (ret) | |
1212 | return ret; | |
8b3d6663 AB |
1213 | ctx->ops->signal2_write(ctx, data); |
1214 | spu_release(ctx); | |
67207b96 AB |
1215 | |
1216 | return 4; | |
1217 | } | |
1218 | ||
27d5bf2a | 1219 | #if SPUFS_MMAP_4K |
78bde53e BH |
1220 | static unsigned long spufs_signal2_mmap_nopfn(struct vm_area_struct *vma, |
1221 | unsigned long address) | |
6df10a82 | 1222 | { |
27d5bf2a | 1223 | #if PAGE_SIZE == 0x1000 |
78bde53e | 1224 | return spufs_ps_nopfn(vma, address, 0x1c000, 0x1000); |
27d5bf2a BH |
1225 | #elif PAGE_SIZE == 0x10000 |
1226 | /* For 64k pages, both signal1 and signal2 can be used to mmap the whole | |
1227 | * signal 1 and 2 area | |
1228 | */ | |
78bde53e | 1229 | return spufs_ps_nopfn(vma, address, 0x10000, 0x10000); |
27d5bf2a BH |
1230 | #else |
1231 | #error unsupported page size | |
1232 | #endif | |
6df10a82 MN |
1233 | } |
1234 | ||
1235 | static struct vm_operations_struct spufs_signal2_mmap_vmops = { | |
78bde53e | 1236 | .nopfn = spufs_signal2_mmap_nopfn, |
6df10a82 MN |
1237 | }; |
1238 | ||
1239 | static int spufs_signal2_mmap(struct file *file, struct vm_area_struct *vma) | |
1240 | { | |
1241 | if (!(vma->vm_flags & VM_SHARED)) | |
1242 | return -EINVAL; | |
1243 | ||
78bde53e | 1244 | vma->vm_flags |= VM_IO | VM_PFNMAP; |
6df10a82 | 1245 | vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) |
23cc7701 | 1246 | | _PAGE_NO_CACHE | _PAGE_GUARDED); |
6df10a82 MN |
1247 | |
1248 | vma->vm_ops = &spufs_signal2_mmap_vmops; | |
1249 | return 0; | |
1250 | } | |
27d5bf2a BH |
1251 | #else /* SPUFS_MMAP_4K */ |
1252 | #define spufs_signal2_mmap NULL | |
1253 | #endif /* !SPUFS_MMAP_4K */ | |
6df10a82 | 1254 | |
5dfe4c96 | 1255 | static const struct file_operations spufs_signal2_fops = { |
6df10a82 | 1256 | .open = spufs_signal2_open, |
43c2bbd9 | 1257 | .release = spufs_signal2_release, |
67207b96 AB |
1258 | .read = spufs_signal2_read, |
1259 | .write = spufs_signal2_write, | |
6df10a82 | 1260 | .mmap = spufs_signal2_mmap, |
67207b96 AB |
1261 | }; |
1262 | ||
d054b36f JK |
1263 | static const struct file_operations spufs_signal2_nosched_fops = { |
1264 | .open = spufs_signal2_open, | |
1265 | .release = spufs_signal2_release, | |
1266 | .write = spufs_signal2_write, | |
1267 | .mmap = spufs_signal2_mmap, | |
1268 | }; | |
1269 | ||
104f0cc2 ME |
1270 | /* |
1271 | * This is a wrapper around DEFINE_SIMPLE_ATTRIBUTE which does the | |
1272 | * work of acquiring (or not) the SPU context before calling through | |
1273 | * to the actual get routine. The set routine is called directly. | |
1274 | */ | |
1275 | #define SPU_ATTR_NOACQUIRE 0 | |
1276 | #define SPU_ATTR_ACQUIRE 1 | |
1277 | #define SPU_ATTR_ACQUIRE_SAVED 2 | |
1278 | ||
1279 | #define DEFINE_SPUFS_ATTRIBUTE(__name, __get, __set, __fmt, __acquire) \ | |
197b1a82 | 1280 | static int __##__get(void *data, u64 *val) \ |
104f0cc2 ME |
1281 | { \ |
1282 | struct spu_context *ctx = data; \ | |
c9101bdb | 1283 | int ret = 0; \ |
104f0cc2 ME |
1284 | \ |
1285 | if (__acquire == SPU_ATTR_ACQUIRE) { \ | |
c9101bdb CH |
1286 | ret = spu_acquire(ctx); \ |
1287 | if (ret) \ | |
1288 | return ret; \ | |
197b1a82 | 1289 | *val = __get(ctx); \ |
104f0cc2 ME |
1290 | spu_release(ctx); \ |
1291 | } else if (__acquire == SPU_ATTR_ACQUIRE_SAVED) { \ | |
c9101bdb CH |
1292 | ret = spu_acquire_saved(ctx); \ |
1293 | if (ret) \ | |
1294 | return ret; \ | |
197b1a82 | 1295 | *val = __get(ctx); \ |
104f0cc2 ME |
1296 | spu_release_saved(ctx); \ |
1297 | } else \ | |
197b1a82 | 1298 | *val = __get(ctx); \ |
104f0cc2 | 1299 | \ |
197b1a82 | 1300 | return 0; \ |
104f0cc2 | 1301 | } \ |
197b1a82 | 1302 | DEFINE_SPUFS_SIMPLE_ATTRIBUTE(__name, __##__get, __set, __fmt); |
104f0cc2 | 1303 | |
197b1a82 | 1304 | static int spufs_signal1_type_set(void *data, u64 val) |
67207b96 AB |
1305 | { |
1306 | struct spu_context *ctx = data; | |
c9101bdb | 1307 | int ret; |
67207b96 | 1308 | |
c9101bdb CH |
1309 | ret = spu_acquire(ctx); |
1310 | if (ret) | |
1311 | return ret; | |
8b3d6663 AB |
1312 | ctx->ops->signal1_type_set(ctx, val); |
1313 | spu_release(ctx); | |
197b1a82 CH |
1314 | |
1315 | return 0; | |
67207b96 AB |
1316 | } |
1317 | ||
104f0cc2 | 1318 | static u64 spufs_signal1_type_get(struct spu_context *ctx) |
bf1ab978 | 1319 | { |
bf1ab978 DGM |
1320 | return ctx->ops->signal1_type_get(ctx); |
1321 | } | |
104f0cc2 ME |
1322 | DEFINE_SPUFS_ATTRIBUTE(spufs_signal1_type, spufs_signal1_type_get, |
1323 | spufs_signal1_type_set, "%llu", SPU_ATTR_ACQUIRE); | |
bf1ab978 | 1324 | |
67207b96 | 1325 | |
197b1a82 | 1326 | static int spufs_signal2_type_set(void *data, u64 val) |
67207b96 AB |
1327 | { |
1328 | struct spu_context *ctx = data; | |
c9101bdb | 1329 | int ret; |
67207b96 | 1330 | |
c9101bdb CH |
1331 | ret = spu_acquire(ctx); |
1332 | if (ret) | |
1333 | return ret; | |
8b3d6663 AB |
1334 | ctx->ops->signal2_type_set(ctx, val); |
1335 | spu_release(ctx); | |
197b1a82 CH |
1336 | |
1337 | return 0; | |
67207b96 AB |
1338 | } |
1339 | ||
104f0cc2 | 1340 | static u64 spufs_signal2_type_get(struct spu_context *ctx) |
bf1ab978 | 1341 | { |
bf1ab978 DGM |
1342 | return ctx->ops->signal2_type_get(ctx); |
1343 | } | |
104f0cc2 ME |
1344 | DEFINE_SPUFS_ATTRIBUTE(spufs_signal2_type, spufs_signal2_type_get, |
1345 | spufs_signal2_type_set, "%llu", SPU_ATTR_ACQUIRE); | |
67207b96 | 1346 | |
27d5bf2a | 1347 | #if SPUFS_MMAP_4K |
78bde53e BH |
1348 | static unsigned long spufs_mss_mmap_nopfn(struct vm_area_struct *vma, |
1349 | unsigned long address) | |
d9379c4b | 1350 | { |
78bde53e | 1351 | return spufs_ps_nopfn(vma, address, 0x0000, 0x1000); |
d9379c4b AB |
1352 | } |
1353 | ||
1354 | static struct vm_operations_struct spufs_mss_mmap_vmops = { | |
78bde53e | 1355 | .nopfn = spufs_mss_mmap_nopfn, |
d9379c4b AB |
1356 | }; |
1357 | ||
1358 | /* | |
1359 | * mmap support for problem state MFC DMA area [0x0000 - 0x0fff]. | |
d9379c4b AB |
1360 | */ |
1361 | static int spufs_mss_mmap(struct file *file, struct vm_area_struct *vma) | |
1362 | { | |
1363 | if (!(vma->vm_flags & VM_SHARED)) | |
1364 | return -EINVAL; | |
1365 | ||
78bde53e | 1366 | vma->vm_flags |= VM_IO | VM_PFNMAP; |
d9379c4b | 1367 | vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) |
23cc7701 | 1368 | | _PAGE_NO_CACHE | _PAGE_GUARDED); |
d9379c4b AB |
1369 | |
1370 | vma->vm_ops = &spufs_mss_mmap_vmops; | |
1371 | return 0; | |
1372 | } | |
27d5bf2a BH |
1373 | #else /* SPUFS_MMAP_4K */ |
1374 | #define spufs_mss_mmap NULL | |
1375 | #endif /* !SPUFS_MMAP_4K */ | |
d9379c4b AB |
1376 | |
1377 | static int spufs_mss_open(struct inode *inode, struct file *file) | |
1378 | { | |
1379 | struct spufs_inode_info *i = SPUFS_I(inode); | |
17e0e270 | 1380 | struct spu_context *ctx = i->i_ctx; |
d9379c4b AB |
1381 | |
1382 | file->private_data = i->i_ctx; | |
43c2bbd9 | 1383 | |
47d3a5fa | 1384 | mutex_lock(&ctx->mapping_lock); |
43c2bbd9 CH |
1385 | if (!i->i_openers++) |
1386 | ctx->mss = inode->i_mapping; | |
47d3a5fa | 1387 | mutex_unlock(&ctx->mapping_lock); |
d9379c4b AB |
1388 | return nonseekable_open(inode, file); |
1389 | } | |
1390 | ||
43c2bbd9 CH |
1391 | static int |
1392 | spufs_mss_release(struct inode *inode, struct file *file) | |
1393 | { | |
1394 | struct spufs_inode_info *i = SPUFS_I(inode); | |
1395 | struct spu_context *ctx = i->i_ctx; | |
1396 | ||
47d3a5fa | 1397 | mutex_lock(&ctx->mapping_lock); |
43c2bbd9 CH |
1398 | if (!--i->i_openers) |
1399 | ctx->mss = NULL; | |
47d3a5fa | 1400 | mutex_unlock(&ctx->mapping_lock); |
43c2bbd9 CH |
1401 | return 0; |
1402 | } | |
1403 | ||
5dfe4c96 | 1404 | static const struct file_operations spufs_mss_fops = { |
d9379c4b | 1405 | .open = spufs_mss_open, |
43c2bbd9 | 1406 | .release = spufs_mss_release, |
d9379c4b | 1407 | .mmap = spufs_mss_mmap, |
27d5bf2a BH |
1408 | }; |
1409 | ||
78bde53e BH |
1410 | static unsigned long spufs_psmap_mmap_nopfn(struct vm_area_struct *vma, |
1411 | unsigned long address) | |
27d5bf2a | 1412 | { |
78bde53e | 1413 | return spufs_ps_nopfn(vma, address, 0x0000, 0x20000); |
27d5bf2a BH |
1414 | } |
1415 | ||
1416 | static struct vm_operations_struct spufs_psmap_mmap_vmops = { | |
78bde53e | 1417 | .nopfn = spufs_psmap_mmap_nopfn, |
27d5bf2a BH |
1418 | }; |
1419 | ||
1420 | /* | |
1421 | * mmap support for full problem state area [0x00000 - 0x1ffff]. | |
1422 | */ | |
1423 | static int spufs_psmap_mmap(struct file *file, struct vm_area_struct *vma) | |
1424 | { | |
1425 | if (!(vma->vm_flags & VM_SHARED)) | |
1426 | return -EINVAL; | |
1427 | ||
78bde53e | 1428 | vma->vm_flags |= VM_IO | VM_PFNMAP; |
27d5bf2a BH |
1429 | vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) |
1430 | | _PAGE_NO_CACHE | _PAGE_GUARDED); | |
1431 | ||
1432 | vma->vm_ops = &spufs_psmap_mmap_vmops; | |
1433 | return 0; | |
1434 | } | |
1435 | ||
1436 | static int spufs_psmap_open(struct inode *inode, struct file *file) | |
1437 | { | |
1438 | struct spufs_inode_info *i = SPUFS_I(inode); | |
17e0e270 | 1439 | struct spu_context *ctx = i->i_ctx; |
27d5bf2a | 1440 | |
47d3a5fa | 1441 | mutex_lock(&ctx->mapping_lock); |
27d5bf2a | 1442 | file->private_data = i->i_ctx; |
43c2bbd9 CH |
1443 | if (!i->i_openers++) |
1444 | ctx->psmap = inode->i_mapping; | |
47d3a5fa | 1445 | mutex_unlock(&ctx->mapping_lock); |
27d5bf2a BH |
1446 | return nonseekable_open(inode, file); |
1447 | } | |
1448 | ||
43c2bbd9 CH |
1449 | static int |
1450 | spufs_psmap_release(struct inode *inode, struct file *file) | |
1451 | { | |
1452 | struct spufs_inode_info *i = SPUFS_I(inode); | |
1453 | struct spu_context *ctx = i->i_ctx; | |
1454 | ||
47d3a5fa | 1455 | mutex_lock(&ctx->mapping_lock); |
43c2bbd9 CH |
1456 | if (!--i->i_openers) |
1457 | ctx->psmap = NULL; | |
47d3a5fa | 1458 | mutex_unlock(&ctx->mapping_lock); |
43c2bbd9 CH |
1459 | return 0; |
1460 | } | |
1461 | ||
5dfe4c96 | 1462 | static const struct file_operations spufs_psmap_fops = { |
27d5bf2a | 1463 | .open = spufs_psmap_open, |
43c2bbd9 | 1464 | .release = spufs_psmap_release, |
27d5bf2a | 1465 | .mmap = spufs_psmap_mmap, |
d9379c4b AB |
1466 | }; |
1467 | ||
1468 | ||
27d5bf2a | 1469 | #if SPUFS_MMAP_4K |
78bde53e BH |
1470 | static unsigned long spufs_mfc_mmap_nopfn(struct vm_area_struct *vma, |
1471 | unsigned long address) | |
6df10a82 | 1472 | { |
78bde53e | 1473 | return spufs_ps_nopfn(vma, address, 0x3000, 0x1000); |
6df10a82 MN |
1474 | } |
1475 | ||
1476 | static struct vm_operations_struct spufs_mfc_mmap_vmops = { | |
78bde53e | 1477 | .nopfn = spufs_mfc_mmap_nopfn, |
6df10a82 MN |
1478 | }; |
1479 | ||
1480 | /* | |
1481 | * mmap support for problem state MFC DMA area [0x0000 - 0x0fff]. | |
6df10a82 MN |
1482 | */ |
1483 | static int spufs_mfc_mmap(struct file *file, struct vm_area_struct *vma) | |
1484 | { | |
1485 | if (!(vma->vm_flags & VM_SHARED)) | |
1486 | return -EINVAL; | |
1487 | ||
78bde53e | 1488 | vma->vm_flags |= VM_IO | VM_PFNMAP; |
6df10a82 | 1489 | vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) |
23cc7701 | 1490 | | _PAGE_NO_CACHE | _PAGE_GUARDED); |
6df10a82 MN |
1491 | |
1492 | vma->vm_ops = &spufs_mfc_mmap_vmops; | |
1493 | return 0; | |
1494 | } | |
27d5bf2a BH |
1495 | #else /* SPUFS_MMAP_4K */ |
1496 | #define spufs_mfc_mmap NULL | |
1497 | #endif /* !SPUFS_MMAP_4K */ | |
a33a7d73 AB |
1498 | |
1499 | static int spufs_mfc_open(struct inode *inode, struct file *file) | |
1500 | { | |
1501 | struct spufs_inode_info *i = SPUFS_I(inode); | |
1502 | struct spu_context *ctx = i->i_ctx; | |
1503 | ||
1504 | /* we don't want to deal with DMA into other processes */ | |
1505 | if (ctx->owner != current->mm) | |
1506 | return -EINVAL; | |
1507 | ||
1508 | if (atomic_read(&inode->i_count) != 1) | |
1509 | return -EBUSY; | |
1510 | ||
47d3a5fa | 1511 | mutex_lock(&ctx->mapping_lock); |
a33a7d73 | 1512 | file->private_data = ctx; |
43c2bbd9 CH |
1513 | if (!i->i_openers++) |
1514 | ctx->mfc = inode->i_mapping; | |
47d3a5fa | 1515 | mutex_unlock(&ctx->mapping_lock); |
a33a7d73 AB |
1516 | return nonseekable_open(inode, file); |
1517 | } | |
1518 | ||
43c2bbd9 CH |
1519 | static int |
1520 | spufs_mfc_release(struct inode *inode, struct file *file) | |
1521 | { | |
1522 | struct spufs_inode_info *i = SPUFS_I(inode); | |
1523 | struct spu_context *ctx = i->i_ctx; | |
1524 | ||
47d3a5fa | 1525 | mutex_lock(&ctx->mapping_lock); |
43c2bbd9 CH |
1526 | if (!--i->i_openers) |
1527 | ctx->mfc = NULL; | |
47d3a5fa | 1528 | mutex_unlock(&ctx->mapping_lock); |
43c2bbd9 CH |
1529 | return 0; |
1530 | } | |
1531 | ||
a33a7d73 AB |
1532 | /* interrupt-level mfc callback function. */ |
1533 | void spufs_mfc_callback(struct spu *spu) | |
1534 | { | |
1535 | struct spu_context *ctx = spu->ctx; | |
1536 | ||
e65c2f6f LB |
1537 | if (!ctx) |
1538 | return; | |
1539 | ||
a33a7d73 AB |
1540 | wake_up_all(&ctx->mfc_wq); |
1541 | ||
1542 | pr_debug("%s %s\n", __FUNCTION__, spu->name); | |
1543 | if (ctx->mfc_fasync) { | |
1544 | u32 free_elements, tagstatus; | |
1545 | unsigned int mask; | |
1546 | ||
1547 | /* no need for spu_acquire in interrupt context */ | |
1548 | free_elements = ctx->ops->get_mfc_free_elements(ctx); | |
1549 | tagstatus = ctx->ops->read_mfc_tagstatus(ctx); | |
1550 | ||
1551 | mask = 0; | |
1552 | if (free_elements & 0xffff) | |
1553 | mask |= POLLOUT; | |
1554 | if (tagstatus & ctx->tagwait) | |
1555 | mask |= POLLIN; | |
1556 | ||
1557 | kill_fasync(&ctx->mfc_fasync, SIGIO, mask); | |
1558 | } | |
1559 | } | |
1560 | ||
1561 | static int spufs_read_mfc_tagstatus(struct spu_context *ctx, u32 *status) | |
1562 | { | |
1563 | /* See if there is one tag group is complete */ | |
1564 | /* FIXME we need locking around tagwait */ | |
1565 | *status = ctx->ops->read_mfc_tagstatus(ctx) & ctx->tagwait; | |
1566 | ctx->tagwait &= ~*status; | |
1567 | if (*status) | |
1568 | return 1; | |
1569 | ||
1570 | /* enable interrupt waiting for any tag group, | |
1571 | may silently fail if interrupts are already enabled */ | |
1572 | ctx->ops->set_mfc_query(ctx, ctx->tagwait, 1); | |
1573 | return 0; | |
1574 | } | |
1575 | ||
1576 | static ssize_t spufs_mfc_read(struct file *file, char __user *buffer, | |
1577 | size_t size, loff_t *pos) | |
1578 | { | |
1579 | struct spu_context *ctx = file->private_data; | |
1580 | int ret = -EINVAL; | |
1581 | u32 status; | |
1582 | ||
1583 | if (size != 4) | |
1584 | goto out; | |
1585 | ||
c9101bdb CH |
1586 | ret = spu_acquire(ctx); |
1587 | if (ret) | |
1588 | return ret; | |
1589 | ||
1590 | ret = -EINVAL; | |
a33a7d73 AB |
1591 | if (file->f_flags & O_NONBLOCK) { |
1592 | status = ctx->ops->read_mfc_tagstatus(ctx); | |
1593 | if (!(status & ctx->tagwait)) | |
1594 | ret = -EAGAIN; | |
1595 | else | |
c9101bdb | 1596 | /* XXX(hch): shouldn't we clear ret here? */ |
a33a7d73 AB |
1597 | ctx->tagwait &= ~status; |
1598 | } else { | |
1599 | ret = spufs_wait(ctx->mfc_wq, | |
1600 | spufs_read_mfc_tagstatus(ctx, &status)); | |
1601 | } | |
1602 | spu_release(ctx); | |
1603 | ||
1604 | if (ret) | |
1605 | goto out; | |
1606 | ||
1607 | ret = 4; | |
1608 | if (copy_to_user(buffer, &status, 4)) | |
1609 | ret = -EFAULT; | |
1610 | ||
1611 | out: | |
1612 | return ret; | |
1613 | } | |
1614 | ||
1615 | static int spufs_check_valid_dma(struct mfc_dma_command *cmd) | |
1616 | { | |
1617 | pr_debug("queueing DMA %x %lx %x %x %x\n", cmd->lsa, | |
1618 | cmd->ea, cmd->size, cmd->tag, cmd->cmd); | |
1619 | ||
1620 | switch (cmd->cmd) { | |
1621 | case MFC_PUT_CMD: | |
1622 | case MFC_PUTF_CMD: | |
1623 | case MFC_PUTB_CMD: | |
1624 | case MFC_GET_CMD: | |
1625 | case MFC_GETF_CMD: | |
1626 | case MFC_GETB_CMD: | |
1627 | break; | |
1628 | default: | |
1629 | pr_debug("invalid DMA opcode %x\n", cmd->cmd); | |
1630 | return -EIO; | |
1631 | } | |
1632 | ||
1633 | if ((cmd->lsa & 0xf) != (cmd->ea &0xf)) { | |
1634 | pr_debug("invalid DMA alignment, ea %lx lsa %x\n", | |
1635 | cmd->ea, cmd->lsa); | |
1636 | return -EIO; | |
1637 | } | |
1638 | ||
1639 | switch (cmd->size & 0xf) { | |
1640 | case 1: | |
1641 | break; | |
1642 | case 2: | |
1643 | if (cmd->lsa & 1) | |
1644 | goto error; | |
1645 | break; | |
1646 | case 4: | |
1647 | if (cmd->lsa & 3) | |
1648 | goto error; | |
1649 | break; | |
1650 | case 8: | |
1651 | if (cmd->lsa & 7) | |
1652 | goto error; | |
1653 | break; | |
1654 | case 0: | |
1655 | if (cmd->lsa & 15) | |
1656 | goto error; | |
1657 | break; | |
1658 | error: | |
1659 | default: | |
1660 | pr_debug("invalid DMA alignment %x for size %x\n", | |
1661 | cmd->lsa & 0xf, cmd->size); | |
1662 | return -EIO; | |
1663 | } | |
1664 | ||
1665 | if (cmd->size > 16 * 1024) { | |
1666 | pr_debug("invalid DMA size %x\n", cmd->size); | |
1667 | return -EIO; | |
1668 | } | |
1669 | ||
1670 | if (cmd->tag & 0xfff0) { | |
1671 | /* we reserve the higher tag numbers for kernel use */ | |
1672 | pr_debug("invalid DMA tag\n"); | |
1673 | return -EIO; | |
1674 | } | |
1675 | ||
1676 | if (cmd->class) { | |
1677 | /* not supported in this version */ | |
1678 | pr_debug("invalid DMA class\n"); | |
1679 | return -EIO; | |
1680 | } | |
1681 | ||
1682 | return 0; | |
1683 | } | |
1684 | ||
1685 | static int spu_send_mfc_command(struct spu_context *ctx, | |
1686 | struct mfc_dma_command cmd, | |
1687 | int *error) | |
1688 | { | |
1689 | *error = ctx->ops->send_mfc_command(ctx, &cmd); | |
1690 | if (*error == -EAGAIN) { | |
1691 | /* wait for any tag group to complete | |
1692 | so we have space for the new command */ | |
1693 | ctx->ops->set_mfc_query(ctx, ctx->tagwait, 1); | |
1694 | /* try again, because the queue might be | |
1695 | empty again */ | |
1696 | *error = ctx->ops->send_mfc_command(ctx, &cmd); | |
1697 | if (*error == -EAGAIN) | |
1698 | return 0; | |
1699 | } | |
1700 | return 1; | |
1701 | } | |
1702 | ||
1703 | static ssize_t spufs_mfc_write(struct file *file, const char __user *buffer, | |
1704 | size_t size, loff_t *pos) | |
1705 | { | |
1706 | struct spu_context *ctx = file->private_data; | |
1707 | struct mfc_dma_command cmd; | |
1708 | int ret = -EINVAL; | |
1709 | ||
1710 | if (size != sizeof cmd) | |
1711 | goto out; | |
1712 | ||
1713 | ret = -EFAULT; | |
1714 | if (copy_from_user(&cmd, buffer, sizeof cmd)) | |
1715 | goto out; | |
1716 | ||
1717 | ret = spufs_check_valid_dma(&cmd); | |
1718 | if (ret) | |
1719 | goto out; | |
1720 | ||
c9101bdb CH |
1721 | ret = spu_acquire(ctx); |
1722 | if (ret) | |
1723 | goto out; | |
1724 | ||
33bfd7a7 | 1725 | ret = spufs_wait(ctx->run_wq, ctx->state == SPU_STATE_RUNNABLE); |
577f8f10 AM |
1726 | if (ret) |
1727 | goto out; | |
1728 | ||
a33a7d73 AB |
1729 | if (file->f_flags & O_NONBLOCK) { |
1730 | ret = ctx->ops->send_mfc_command(ctx, &cmd); | |
1731 | } else { | |
1732 | int status; | |
1733 | ret = spufs_wait(ctx->mfc_wq, | |
1734 | spu_send_mfc_command(ctx, cmd, &status)); | |
1735 | if (status) | |
1736 | ret = status; | |
1737 | } | |
a33a7d73 AB |
1738 | |
1739 | if (ret) | |
933b0e35 | 1740 | goto out_unlock; |
a33a7d73 AB |
1741 | |
1742 | ctx->tagwait |= 1 << cmd.tag; | |
3692dc66 | 1743 | ret = size; |
a33a7d73 | 1744 | |
933b0e35 KA |
1745 | out_unlock: |
1746 | spu_release(ctx); | |
a33a7d73 AB |
1747 | out: |
1748 | return ret; | |
1749 | } | |
1750 | ||
1751 | static unsigned int spufs_mfc_poll(struct file *file,poll_table *wait) | |
1752 | { | |
1753 | struct spu_context *ctx = file->private_data; | |
1754 | u32 free_elements, tagstatus; | |
1755 | unsigned int mask; | |
1756 | ||
933b0e35 KA |
1757 | poll_wait(file, &ctx->mfc_wq, wait); |
1758 | ||
c9101bdb CH |
1759 | /* |
1760 | * For now keep this uninterruptible and also ignore the rule | |
1761 | * that poll should not sleep. Will be fixed later. | |
1762 | */ | |
1763 | mutex_lock(&ctx->state_mutex); | |
a33a7d73 AB |
1764 | ctx->ops->set_mfc_query(ctx, ctx->tagwait, 2); |
1765 | free_elements = ctx->ops->get_mfc_free_elements(ctx); | |
1766 | tagstatus = ctx->ops->read_mfc_tagstatus(ctx); | |
1767 | spu_release(ctx); | |
1768 | ||
a33a7d73 AB |
1769 | mask = 0; |
1770 | if (free_elements & 0xffff) | |
1771 | mask |= POLLOUT | POLLWRNORM; | |
1772 | if (tagstatus & ctx->tagwait) | |
1773 | mask |= POLLIN | POLLRDNORM; | |
1774 | ||
1775 | pr_debug("%s: free %d tagstatus %d tagwait %d\n", __FUNCTION__, | |
1776 | free_elements, tagstatus, ctx->tagwait); | |
1777 | ||
1778 | return mask; | |
1779 | } | |
1780 | ||
73b6af8a | 1781 | static int spufs_mfc_flush(struct file *file, fl_owner_t id) |
a33a7d73 AB |
1782 | { |
1783 | struct spu_context *ctx = file->private_data; | |
1784 | int ret; | |
1785 | ||
c9101bdb CH |
1786 | ret = spu_acquire(ctx); |
1787 | if (ret) | |
1788 | return ret; | |
a33a7d73 AB |
1789 | #if 0 |
1790 | /* this currently hangs */ | |
1791 | ret = spufs_wait(ctx->mfc_wq, | |
1792 | ctx->ops->set_mfc_query(ctx, ctx->tagwait, 2)); | |
1793 | if (ret) | |
1794 | goto out; | |
1795 | ret = spufs_wait(ctx->mfc_wq, | |
1796 | ctx->ops->read_mfc_tagstatus(ctx) == ctx->tagwait); | |
1797 | out: | |
1798 | #else | |
1799 | ret = 0; | |
1800 | #endif | |
1801 | spu_release(ctx); | |
1802 | ||
1803 | return ret; | |
1804 | } | |
1805 | ||
1806 | static int spufs_mfc_fsync(struct file *file, struct dentry *dentry, | |
1807 | int datasync) | |
1808 | { | |
73b6af8a | 1809 | return spufs_mfc_flush(file, NULL); |
a33a7d73 AB |
1810 | } |
1811 | ||
1812 | static int spufs_mfc_fasync(int fd, struct file *file, int on) | |
1813 | { | |
1814 | struct spu_context *ctx = file->private_data; | |
1815 | ||
1816 | return fasync_helper(fd, file, on, &ctx->mfc_fasync); | |
1817 | } | |
1818 | ||
5dfe4c96 | 1819 | static const struct file_operations spufs_mfc_fops = { |
a33a7d73 | 1820 | .open = spufs_mfc_open, |
43c2bbd9 | 1821 | .release = spufs_mfc_release, |
a33a7d73 AB |
1822 | .read = spufs_mfc_read, |
1823 | .write = spufs_mfc_write, | |
1824 | .poll = spufs_mfc_poll, | |
1825 | .flush = spufs_mfc_flush, | |
1826 | .fsync = spufs_mfc_fsync, | |
1827 | .fasync = spufs_mfc_fasync, | |
6df10a82 | 1828 | .mmap = spufs_mfc_mmap, |
a33a7d73 AB |
1829 | }; |
1830 | ||
197b1a82 | 1831 | static int spufs_npc_set(void *data, u64 val) |
67207b96 AB |
1832 | { |
1833 | struct spu_context *ctx = data; | |
c9101bdb CH |
1834 | int ret; |
1835 | ||
1836 | ret = spu_acquire(ctx); | |
1837 | if (ret) | |
1838 | return ret; | |
8b3d6663 AB |
1839 | ctx->ops->npc_write(ctx, val); |
1840 | spu_release(ctx); | |
197b1a82 CH |
1841 | |
1842 | return 0; | |
67207b96 AB |
1843 | } |
1844 | ||
104f0cc2 | 1845 | static u64 spufs_npc_get(struct spu_context *ctx) |
78810ff6 ME |
1846 | { |
1847 | return ctx->ops->npc_read(ctx); | |
1848 | } | |
104f0cc2 ME |
1849 | DEFINE_SPUFS_ATTRIBUTE(spufs_npc_ops, spufs_npc_get, spufs_npc_set, |
1850 | "0x%llx\n", SPU_ATTR_ACQUIRE); | |
67207b96 | 1851 | |
197b1a82 | 1852 | static int spufs_decr_set(void *data, u64 val) |
8b3d6663 AB |
1853 | { |
1854 | struct spu_context *ctx = data; | |
1855 | struct spu_lscsa *lscsa = ctx->csa.lscsa; | |
c9101bdb CH |
1856 | int ret; |
1857 | ||
1858 | ret = spu_acquire_saved(ctx); | |
1859 | if (ret) | |
1860 | return ret; | |
8b3d6663 | 1861 | lscsa->decr.slot[0] = (u32) val; |
27b1ea09 | 1862 | spu_release_saved(ctx); |
197b1a82 CH |
1863 | |
1864 | return 0; | |
8b3d6663 AB |
1865 | } |
1866 | ||
104f0cc2 | 1867 | static u64 spufs_decr_get(struct spu_context *ctx) |
8b3d6663 | 1868 | { |
8b3d6663 | 1869 | struct spu_lscsa *lscsa = ctx->csa.lscsa; |
bf1ab978 DGM |
1870 | return lscsa->decr.slot[0]; |
1871 | } | |
104f0cc2 ME |
1872 | DEFINE_SPUFS_ATTRIBUTE(spufs_decr_ops, spufs_decr_get, spufs_decr_set, |
1873 | "0x%llx\n", SPU_ATTR_ACQUIRE_SAVED); | |
8b3d6663 | 1874 | |
197b1a82 | 1875 | static int spufs_decr_status_set(void *data, u64 val) |
8b3d6663 AB |
1876 | { |
1877 | struct spu_context *ctx = data; | |
c9101bdb CH |
1878 | int ret; |
1879 | ||
1880 | ret = spu_acquire_saved(ctx); | |
1881 | if (ret) | |
1882 | return ret; | |
d40a01d4 MN |
1883 | if (val) |
1884 | ctx->csa.priv2.mfc_control_RW |= MFC_CNTL_DECREMENTER_RUNNING; | |
1885 | else | |
1886 | ctx->csa.priv2.mfc_control_RW &= ~MFC_CNTL_DECREMENTER_RUNNING; | |
27b1ea09 | 1887 | spu_release_saved(ctx); |
197b1a82 CH |
1888 | |
1889 | return 0; | |
8b3d6663 AB |
1890 | } |
1891 | ||
104f0cc2 | 1892 | static u64 spufs_decr_status_get(struct spu_context *ctx) |
8b3d6663 | 1893 | { |
d40a01d4 MN |
1894 | if (ctx->csa.priv2.mfc_control_RW & MFC_CNTL_DECREMENTER_RUNNING) |
1895 | return SPU_DECR_STATUS_RUNNING; | |
1896 | else | |
1897 | return 0; | |
bf1ab978 | 1898 | } |
104f0cc2 ME |
1899 | DEFINE_SPUFS_ATTRIBUTE(spufs_decr_status_ops, spufs_decr_status_get, |
1900 | spufs_decr_status_set, "0x%llx\n", | |
1901 | SPU_ATTR_ACQUIRE_SAVED); | |
8b3d6663 | 1902 | |
197b1a82 | 1903 | static int spufs_event_mask_set(void *data, u64 val) |
8b3d6663 AB |
1904 | { |
1905 | struct spu_context *ctx = data; | |
1906 | struct spu_lscsa *lscsa = ctx->csa.lscsa; | |
c9101bdb CH |
1907 | int ret; |
1908 | ||
1909 | ret = spu_acquire_saved(ctx); | |
1910 | if (ret) | |
1911 | return ret; | |
8b3d6663 | 1912 | lscsa->event_mask.slot[0] = (u32) val; |
27b1ea09 | 1913 | spu_release_saved(ctx); |
197b1a82 CH |
1914 | |
1915 | return 0; | |
8b3d6663 AB |
1916 | } |
1917 | ||
104f0cc2 | 1918 | static u64 spufs_event_mask_get(struct spu_context *ctx) |
8b3d6663 | 1919 | { |
8b3d6663 | 1920 | struct spu_lscsa *lscsa = ctx->csa.lscsa; |
bf1ab978 DGM |
1921 | return lscsa->event_mask.slot[0]; |
1922 | } | |
1923 | ||
104f0cc2 ME |
1924 | DEFINE_SPUFS_ATTRIBUTE(spufs_event_mask_ops, spufs_event_mask_get, |
1925 | spufs_event_mask_set, "0x%llx\n", | |
1926 | SPU_ATTR_ACQUIRE_SAVED); | |
8b3d6663 | 1927 | |
104f0cc2 | 1928 | static u64 spufs_event_status_get(struct spu_context *ctx) |
b9e3bd77 | 1929 | { |
b9e3bd77 | 1930 | struct spu_state *state = &ctx->csa; |
b9e3bd77 | 1931 | u64 stat; |
b9e3bd77 DGM |
1932 | stat = state->spu_chnlcnt_RW[0]; |
1933 | if (stat) | |
bf1ab978 DGM |
1934 | return state->spu_chnldata_RW[0]; |
1935 | return 0; | |
1936 | } | |
104f0cc2 ME |
1937 | DEFINE_SPUFS_ATTRIBUTE(spufs_event_status_ops, spufs_event_status_get, |
1938 | NULL, "0x%llx\n", SPU_ATTR_ACQUIRE_SAVED) | |
b9e3bd77 | 1939 | |
197b1a82 | 1940 | static int spufs_srr0_set(void *data, u64 val) |
8b3d6663 AB |
1941 | { |
1942 | struct spu_context *ctx = data; | |
1943 | struct spu_lscsa *lscsa = ctx->csa.lscsa; | |
c9101bdb CH |
1944 | int ret; |
1945 | ||
1946 | ret = spu_acquire_saved(ctx); | |
1947 | if (ret) | |
1948 | return ret; | |
8b3d6663 | 1949 | lscsa->srr0.slot[0] = (u32) val; |
27b1ea09 | 1950 | spu_release_saved(ctx); |
197b1a82 CH |
1951 | |
1952 | return 0; | |
8b3d6663 AB |
1953 | } |
1954 | ||
104f0cc2 | 1955 | static u64 spufs_srr0_get(struct spu_context *ctx) |
8b3d6663 | 1956 | { |
8b3d6663 | 1957 | struct spu_lscsa *lscsa = ctx->csa.lscsa; |
104f0cc2 | 1958 | return lscsa->srr0.slot[0]; |
8b3d6663 | 1959 | } |
104f0cc2 ME |
1960 | DEFINE_SPUFS_ATTRIBUTE(spufs_srr0_ops, spufs_srr0_get, spufs_srr0_set, |
1961 | "0x%llx\n", SPU_ATTR_ACQUIRE_SAVED) | |
8b3d6663 | 1962 | |
104f0cc2 | 1963 | static u64 spufs_id_get(struct spu_context *ctx) |
7b1a7014 | 1964 | { |
7b1a7014 AB |
1965 | u64 num; |
1966 | ||
7b1a7014 AB |
1967 | if (ctx->state == SPU_STATE_RUNNABLE) |
1968 | num = ctx->spu->number; | |
1969 | else | |
1970 | num = (unsigned int)-1; | |
7b1a7014 AB |
1971 | |
1972 | return num; | |
1973 | } | |
104f0cc2 ME |
1974 | DEFINE_SPUFS_ATTRIBUTE(spufs_id_ops, spufs_id_get, NULL, "0x%llx\n", |
1975 | SPU_ATTR_ACQUIRE) | |
7b1a7014 | 1976 | |
104f0cc2 | 1977 | static u64 spufs_object_id_get(struct spu_context *ctx) |
bf1ab978 DGM |
1978 | { |
1979 | /* FIXME: Should there really be no locking here? */ | |
104f0cc2 | 1980 | return ctx->object_id; |
bf1ab978 DGM |
1981 | } |
1982 | ||
197b1a82 | 1983 | static int spufs_object_id_set(void *data, u64 id) |
86767277 AB |
1984 | { |
1985 | struct spu_context *ctx = data; | |
1986 | ctx->object_id = id; | |
197b1a82 CH |
1987 | |
1988 | return 0; | |
86767277 AB |
1989 | } |
1990 | ||
104f0cc2 ME |
1991 | DEFINE_SPUFS_ATTRIBUTE(spufs_object_id_ops, spufs_object_id_get, |
1992 | spufs_object_id_set, "0x%llx\n", SPU_ATTR_NOACQUIRE); | |
86767277 | 1993 | |
104f0cc2 | 1994 | static u64 spufs_lslr_get(struct spu_context *ctx) |
bf1ab978 | 1995 | { |
bf1ab978 DGM |
1996 | return ctx->csa.priv2.spu_lslr_RW; |
1997 | } | |
104f0cc2 ME |
1998 | DEFINE_SPUFS_ATTRIBUTE(spufs_lslr_ops, spufs_lslr_get, NULL, "0x%llx\n", |
1999 | SPU_ATTR_ACQUIRE_SAVED); | |
b9e3bd77 DGM |
2000 | |
2001 | static int spufs_info_open(struct inode *inode, struct file *file) | |
2002 | { | |
2003 | struct spufs_inode_info *i = SPUFS_I(inode); | |
2004 | struct spu_context *ctx = i->i_ctx; | |
2005 | file->private_data = ctx; | |
2006 | return 0; | |
2007 | } | |
2008 | ||
cbe709c1 BH |
2009 | static int spufs_caps_show(struct seq_file *s, void *private) |
2010 | { | |
2011 | struct spu_context *ctx = s->private; | |
2012 | ||
2013 | if (!(ctx->flags & SPU_CREATE_NOSCHED)) | |
2014 | seq_puts(s, "sched\n"); | |
2015 | if (!(ctx->flags & SPU_CREATE_ISOLATE)) | |
2016 | seq_puts(s, "step\n"); | |
2017 | return 0; | |
2018 | } | |
2019 | ||
2020 | static int spufs_caps_open(struct inode *inode, struct file *file) | |
2021 | { | |
2022 | return single_open(file, spufs_caps_show, SPUFS_I(inode)->i_ctx); | |
2023 | } | |
2024 | ||
2025 | static const struct file_operations spufs_caps_fops = { | |
2026 | .open = spufs_caps_open, | |
2027 | .read = seq_read, | |
2028 | .llseek = seq_lseek, | |
2029 | .release = single_release, | |
2030 | }; | |
2031 | ||
bf1ab978 DGM |
2032 | static ssize_t __spufs_mbox_info_read(struct spu_context *ctx, |
2033 | char __user *buf, size_t len, loff_t *pos) | |
2034 | { | |
bf1ab978 DGM |
2035 | u32 data; |
2036 | ||
cbea9238 JK |
2037 | /* EOF if there's no entry in the mbox */ |
2038 | if (!(ctx->csa.prob.mb_stat_R & 0x0000ff)) | |
2039 | return 0; | |
2040 | ||
2041 | data = ctx->csa.prob.pu_mb_R; | |
bf1ab978 DGM |
2042 | |
2043 | return simple_read_from_buffer(buf, len, pos, &data, sizeof data); | |
2044 | } | |
2045 | ||
69a2f00c DGM |
2046 | static ssize_t spufs_mbox_info_read(struct file *file, char __user *buf, |
2047 | size_t len, loff_t *pos) | |
2048 | { | |
bf1ab978 | 2049 | int ret; |
69a2f00c | 2050 | struct spu_context *ctx = file->private_data; |
69a2f00c DGM |
2051 | |
2052 | if (!access_ok(VERIFY_WRITE, buf, len)) | |
2053 | return -EFAULT; | |
2054 | ||
c9101bdb CH |
2055 | ret = spu_acquire_saved(ctx); |
2056 | if (ret) | |
2057 | return ret; | |
69a2f00c | 2058 | spin_lock(&ctx->csa.register_lock); |
bf1ab978 | 2059 | ret = __spufs_mbox_info_read(ctx, buf, len, pos); |
69a2f00c | 2060 | spin_unlock(&ctx->csa.register_lock); |
27b1ea09 | 2061 | spu_release_saved(ctx); |
69a2f00c | 2062 | |
bf1ab978 | 2063 | return ret; |
69a2f00c DGM |
2064 | } |
2065 | ||
5dfe4c96 | 2066 | static const struct file_operations spufs_mbox_info_fops = { |
69a2f00c DGM |
2067 | .open = spufs_info_open, |
2068 | .read = spufs_mbox_info_read, | |
2069 | .llseek = generic_file_llseek, | |
2070 | }; | |
2071 | ||
bf1ab978 DGM |
2072 | static ssize_t __spufs_ibox_info_read(struct spu_context *ctx, |
2073 | char __user *buf, size_t len, loff_t *pos) | |
2074 | { | |
bf1ab978 DGM |
2075 | u32 data; |
2076 | ||
cbea9238 JK |
2077 | /* EOF if there's no entry in the ibox */ |
2078 | if (!(ctx->csa.prob.mb_stat_R & 0xff0000)) | |
2079 | return 0; | |
2080 | ||
2081 | data = ctx->csa.priv2.puint_mb_R; | |
bf1ab978 DGM |
2082 | |
2083 | return simple_read_from_buffer(buf, len, pos, &data, sizeof data); | |
2084 | } | |
2085 | ||
69a2f00c DGM |
2086 | static ssize_t spufs_ibox_info_read(struct file *file, char __user *buf, |
2087 | size_t len, loff_t *pos) | |
2088 | { | |
2089 | struct spu_context *ctx = file->private_data; | |
bf1ab978 | 2090 | int ret; |
69a2f00c DGM |
2091 | |
2092 | if (!access_ok(VERIFY_WRITE, buf, len)) | |
2093 | return -EFAULT; | |
2094 | ||
c9101bdb CH |
2095 | ret = spu_acquire_saved(ctx); |
2096 | if (ret) | |
2097 | return ret; | |
69a2f00c | 2098 | spin_lock(&ctx->csa.register_lock); |
bf1ab978 | 2099 | ret = __spufs_ibox_info_read(ctx, buf, len, pos); |
69a2f00c | 2100 | spin_unlock(&ctx->csa.register_lock); |
27b1ea09 | 2101 | spu_release_saved(ctx); |
69a2f00c | 2102 | |
bf1ab978 | 2103 | return ret; |
69a2f00c DGM |
2104 | } |
2105 | ||
5dfe4c96 | 2106 | static const struct file_operations spufs_ibox_info_fops = { |
69a2f00c DGM |
2107 | .open = spufs_info_open, |
2108 | .read = spufs_ibox_info_read, | |
2109 | .llseek = generic_file_llseek, | |
2110 | }; | |
2111 | ||
bf1ab978 DGM |
2112 | static ssize_t __spufs_wbox_info_read(struct spu_context *ctx, |
2113 | char __user *buf, size_t len, loff_t *pos) | |
69a2f00c | 2114 | { |
69a2f00c DGM |
2115 | int i, cnt; |
2116 | u32 data[4]; | |
2117 | u32 wbox_stat; | |
2118 | ||
bf1ab978 DGM |
2119 | wbox_stat = ctx->csa.prob.mb_stat_R; |
2120 | cnt = 4 - ((wbox_stat & 0x00ff00) >> 8); | |
2121 | for (i = 0; i < cnt; i++) { | |
2122 | data[i] = ctx->csa.spu_mailbox_data[i]; | |
2123 | } | |
2124 | ||
2125 | return simple_read_from_buffer(buf, len, pos, &data, | |
2126 | cnt * sizeof(u32)); | |
2127 | } | |
2128 | ||
2129 | static ssize_t spufs_wbox_info_read(struct file *file, char __user *buf, | |
2130 | size_t len, loff_t *pos) | |
2131 | { | |
2132 | struct spu_context *ctx = file->private_data; | |
2133 | int ret; | |
2134 | ||
69a2f00c DGM |
2135 | if (!access_ok(VERIFY_WRITE, buf, len)) |
2136 | return -EFAULT; | |
2137 | ||
c9101bdb CH |
2138 | ret = spu_acquire_saved(ctx); |
2139 | if (ret) | |
2140 | return ret; | |
69a2f00c | 2141 | spin_lock(&ctx->csa.register_lock); |
bf1ab978 | 2142 | ret = __spufs_wbox_info_read(ctx, buf, len, pos); |
69a2f00c | 2143 | spin_unlock(&ctx->csa.register_lock); |
27b1ea09 | 2144 | spu_release_saved(ctx); |
69a2f00c | 2145 | |
bf1ab978 | 2146 | return ret; |
69a2f00c DGM |
2147 | } |
2148 | ||
5dfe4c96 | 2149 | static const struct file_operations spufs_wbox_info_fops = { |
69a2f00c DGM |
2150 | .open = spufs_info_open, |
2151 | .read = spufs_wbox_info_read, | |
2152 | .llseek = generic_file_llseek, | |
2153 | }; | |
2154 | ||
bf1ab978 DGM |
2155 | static ssize_t __spufs_dma_info_read(struct spu_context *ctx, |
2156 | char __user *buf, size_t len, loff_t *pos) | |
b9e3bd77 | 2157 | { |
b9e3bd77 DGM |
2158 | struct spu_dma_info info; |
2159 | struct mfc_cq_sr *qp, *spuqp; | |
2160 | int i; | |
2161 | ||
b9e3bd77 DGM |
2162 | info.dma_info_type = ctx->csa.priv2.spu_tag_status_query_RW; |
2163 | info.dma_info_mask = ctx->csa.lscsa->tag_mask.slot[0]; | |
2164 | info.dma_info_status = ctx->csa.spu_chnldata_RW[24]; | |
2165 | info.dma_info_stall_and_notify = ctx->csa.spu_chnldata_RW[25]; | |
2166 | info.dma_info_atomic_command_status = ctx->csa.spu_chnldata_RW[27]; | |
2167 | for (i = 0; i < 16; i++) { | |
2168 | qp = &info.dma_info_command_data[i]; | |
2169 | spuqp = &ctx->csa.priv2.spuq[i]; | |
2170 | ||
2171 | qp->mfc_cq_data0_RW = spuqp->mfc_cq_data0_RW; | |
2172 | qp->mfc_cq_data1_RW = spuqp->mfc_cq_data1_RW; | |
2173 | qp->mfc_cq_data2_RW = spuqp->mfc_cq_data2_RW; | |
2174 | qp->mfc_cq_data3_RW = spuqp->mfc_cq_data3_RW; | |
2175 | } | |
b9e3bd77 DGM |
2176 | |
2177 | return simple_read_from_buffer(buf, len, pos, &info, | |
2178 | sizeof info); | |
2179 | } | |
2180 | ||
bf1ab978 DGM |
2181 | static ssize_t spufs_dma_info_read(struct file *file, char __user *buf, |
2182 | size_t len, loff_t *pos) | |
2183 | { | |
2184 | struct spu_context *ctx = file->private_data; | |
2185 | int ret; | |
2186 | ||
2187 | if (!access_ok(VERIFY_WRITE, buf, len)) | |
2188 | return -EFAULT; | |
2189 | ||
c9101bdb CH |
2190 | ret = spu_acquire_saved(ctx); |
2191 | if (ret) | |
2192 | return ret; | |
bf1ab978 DGM |
2193 | spin_lock(&ctx->csa.register_lock); |
2194 | ret = __spufs_dma_info_read(ctx, buf, len, pos); | |
2195 | spin_unlock(&ctx->csa.register_lock); | |
27b1ea09 | 2196 | spu_release_saved(ctx); |
bf1ab978 DGM |
2197 | |
2198 | return ret; | |
2199 | } | |
2200 | ||
5dfe4c96 | 2201 | static const struct file_operations spufs_dma_info_fops = { |
b9e3bd77 DGM |
2202 | .open = spufs_info_open, |
2203 | .read = spufs_dma_info_read, | |
2204 | }; | |
2205 | ||
bf1ab978 DGM |
2206 | static ssize_t __spufs_proxydma_info_read(struct spu_context *ctx, |
2207 | char __user *buf, size_t len, loff_t *pos) | |
b9e3bd77 | 2208 | { |
b9e3bd77 | 2209 | struct spu_proxydma_info info; |
b9e3bd77 | 2210 | struct mfc_cq_sr *qp, *puqp; |
bf1ab978 | 2211 | int ret = sizeof info; |
b9e3bd77 DGM |
2212 | int i; |
2213 | ||
2214 | if (len < ret) | |
2215 | return -EINVAL; | |
2216 | ||
2217 | if (!access_ok(VERIFY_WRITE, buf, len)) | |
2218 | return -EFAULT; | |
2219 | ||
b9e3bd77 DGM |
2220 | info.proxydma_info_type = ctx->csa.prob.dma_querytype_RW; |
2221 | info.proxydma_info_mask = ctx->csa.prob.dma_querymask_RW; | |
2222 | info.proxydma_info_status = ctx->csa.prob.dma_tagstatus_R; | |
2223 | for (i = 0; i < 8; i++) { | |
2224 | qp = &info.proxydma_info_command_data[i]; | |
2225 | puqp = &ctx->csa.priv2.puq[i]; | |
2226 | ||
2227 | qp->mfc_cq_data0_RW = puqp->mfc_cq_data0_RW; | |
2228 | qp->mfc_cq_data1_RW = puqp->mfc_cq_data1_RW; | |
2229 | qp->mfc_cq_data2_RW = puqp->mfc_cq_data2_RW; | |
2230 | qp->mfc_cq_data3_RW = puqp->mfc_cq_data3_RW; | |
2231 | } | |
bf1ab978 DGM |
2232 | |
2233 | return simple_read_from_buffer(buf, len, pos, &info, | |
2234 | sizeof info); | |
2235 | } | |
2236 | ||
2237 | static ssize_t spufs_proxydma_info_read(struct file *file, char __user *buf, | |
2238 | size_t len, loff_t *pos) | |
2239 | { | |
2240 | struct spu_context *ctx = file->private_data; | |
2241 | int ret; | |
2242 | ||
c9101bdb CH |
2243 | ret = spu_acquire_saved(ctx); |
2244 | if (ret) | |
2245 | return ret; | |
bf1ab978 DGM |
2246 | spin_lock(&ctx->csa.register_lock); |
2247 | ret = __spufs_proxydma_info_read(ctx, buf, len, pos); | |
b9e3bd77 | 2248 | spin_unlock(&ctx->csa.register_lock); |
27b1ea09 | 2249 | spu_release_saved(ctx); |
b9e3bd77 | 2250 | |
b9e3bd77 DGM |
2251 | return ret; |
2252 | } | |
2253 | ||
5dfe4c96 | 2254 | static const struct file_operations spufs_proxydma_info_fops = { |
b9e3bd77 DGM |
2255 | .open = spufs_info_open, |
2256 | .read = spufs_proxydma_info_read, | |
2257 | }; | |
2258 | ||
476273ad CH |
2259 | static int spufs_show_tid(struct seq_file *s, void *private) |
2260 | { | |
2261 | struct spu_context *ctx = s->private; | |
2262 | ||
2263 | seq_printf(s, "%d\n", ctx->tid); | |
2264 | return 0; | |
2265 | } | |
2266 | ||
2267 | static int spufs_tid_open(struct inode *inode, struct file *file) | |
2268 | { | |
2269 | return single_open(file, spufs_show_tid, SPUFS_I(inode)->i_ctx); | |
2270 | } | |
2271 | ||
2272 | static const struct file_operations spufs_tid_fops = { | |
2273 | .open = spufs_tid_open, | |
2274 | .read = seq_read, | |
2275 | .llseek = seq_lseek, | |
2276 | .release = single_release, | |
2277 | }; | |
2278 | ||
e9f8a0b6 CH |
2279 | static const char *ctx_state_names[] = { |
2280 | "user", "system", "iowait", "loaded" | |
2281 | }; | |
2282 | ||
2283 | static unsigned long long spufs_acct_time(struct spu_context *ctx, | |
27ec41d3 | 2284 | enum spu_utilization_state state) |
e9f8a0b6 | 2285 | { |
27ec41d3 AD |
2286 | struct timespec ts; |
2287 | unsigned long long time = ctx->stats.times[state]; | |
e9f8a0b6 | 2288 | |
27ec41d3 AD |
2289 | /* |
2290 | * In general, utilization statistics are updated by the controlling | |
2291 | * thread as the spu context moves through various well defined | |
2292 | * state transitions, but if the context is lazily loaded its | |
2293 | * utilization statistics are not updated as the controlling thread | |
2294 | * is not tightly coupled with the execution of the spu context. We | |
2295 | * calculate and apply the time delta from the last recorded state | |
2296 | * of the spu context. | |
2297 | */ | |
2298 | if (ctx->spu && ctx->stats.util_state == state) { | |
2299 | ktime_get_ts(&ts); | |
2300 | time += timespec_to_ns(&ts) - ctx->stats.tstamp; | |
2301 | } | |
e9f8a0b6 | 2302 | |
27ec41d3 | 2303 | return time / NSEC_PER_MSEC; |
e9f8a0b6 CH |
2304 | } |
2305 | ||
2306 | static unsigned long long spufs_slb_flts(struct spu_context *ctx) | |
2307 | { | |
2308 | unsigned long long slb_flts = ctx->stats.slb_flt; | |
2309 | ||
2310 | if (ctx->state == SPU_STATE_RUNNABLE) { | |
2311 | slb_flts += (ctx->spu->stats.slb_flt - | |
2312 | ctx->stats.slb_flt_base); | |
2313 | } | |
2314 | ||
2315 | return slb_flts; | |
2316 | } | |
2317 | ||
2318 | static unsigned long long spufs_class2_intrs(struct spu_context *ctx) | |
2319 | { | |
2320 | unsigned long long class2_intrs = ctx->stats.class2_intr; | |
2321 | ||
2322 | if (ctx->state == SPU_STATE_RUNNABLE) { | |
2323 | class2_intrs += (ctx->spu->stats.class2_intr - | |
2324 | ctx->stats.class2_intr_base); | |
2325 | } | |
2326 | ||
2327 | return class2_intrs; | |
2328 | } | |
2329 | ||
2330 | ||
2331 | static int spufs_show_stat(struct seq_file *s, void *private) | |
2332 | { | |
2333 | struct spu_context *ctx = s->private; | |
c9101bdb CH |
2334 | int ret; |
2335 | ||
2336 | ret = spu_acquire(ctx); | |
2337 | if (ret) | |
2338 | return ret; | |
e9f8a0b6 | 2339 | |
e9f8a0b6 CH |
2340 | seq_printf(s, "%s %llu %llu %llu %llu " |
2341 | "%llu %llu %llu %llu %llu %llu %llu %llu\n", | |
27ec41d3 AD |
2342 | ctx_state_names[ctx->stats.util_state], |
2343 | spufs_acct_time(ctx, SPU_UTIL_USER), | |
2344 | spufs_acct_time(ctx, SPU_UTIL_SYSTEM), | |
2345 | spufs_acct_time(ctx, SPU_UTIL_IOWAIT), | |
2346 | spufs_acct_time(ctx, SPU_UTIL_IDLE_LOADED), | |
e9f8a0b6 CH |
2347 | ctx->stats.vol_ctx_switch, |
2348 | ctx->stats.invol_ctx_switch, | |
2349 | spufs_slb_flts(ctx), | |
2350 | ctx->stats.hash_flt, | |
2351 | ctx->stats.min_flt, | |
2352 | ctx->stats.maj_flt, | |
2353 | spufs_class2_intrs(ctx), | |
2354 | ctx->stats.libassist); | |
2355 | spu_release(ctx); | |
2356 | return 0; | |
2357 | } | |
2358 | ||
2359 | static int spufs_stat_open(struct inode *inode, struct file *file) | |
2360 | { | |
2361 | return single_open(file, spufs_show_stat, SPUFS_I(inode)->i_ctx); | |
2362 | } | |
2363 | ||
2364 | static const struct file_operations spufs_stat_fops = { | |
2365 | .open = spufs_stat_open, | |
2366 | .read = seq_read, | |
2367 | .llseek = seq_lseek, | |
2368 | .release = single_release, | |
2369 | }; | |
2370 | ||
2371 | ||
67207b96 | 2372 | struct tree_descr spufs_dir_contents[] = { |
cbe709c1 | 2373 | { "capabilities", &spufs_caps_fops, 0444, }, |
67207b96 | 2374 | { "mem", &spufs_mem_fops, 0666, }, |
8b3d6663 | 2375 | { "regs", &spufs_regs_fops, 0666, }, |
67207b96 AB |
2376 | { "mbox", &spufs_mbox_fops, 0444, }, |
2377 | { "ibox", &spufs_ibox_fops, 0444, }, | |
2378 | { "wbox", &spufs_wbox_fops, 0222, }, | |
2379 | { "mbox_stat", &spufs_mbox_stat_fops, 0444, }, | |
2380 | { "ibox_stat", &spufs_ibox_stat_fops, 0444, }, | |
2381 | { "wbox_stat", &spufs_wbox_stat_fops, 0444, }, | |
603c4612 JK |
2382 | { "signal1", &spufs_signal1_fops, 0666, }, |
2383 | { "signal2", &spufs_signal2_fops, 0666, }, | |
67207b96 AB |
2384 | { "signal1_type", &spufs_signal1_type, 0666, }, |
2385 | { "signal2_type", &spufs_signal2_type, 0666, }, | |
6df10a82 | 2386 | { "cntl", &spufs_cntl_fops, 0666, }, |
8b3d6663 | 2387 | { "fpcr", &spufs_fpcr_fops, 0666, }, |
b9e3bd77 DGM |
2388 | { "lslr", &spufs_lslr_ops, 0444, }, |
2389 | { "mfc", &spufs_mfc_fops, 0666, }, | |
2390 | { "mss", &spufs_mss_fops, 0666, }, | |
2391 | { "npc", &spufs_npc_ops, 0666, }, | |
2392 | { "srr0", &spufs_srr0_ops, 0666, }, | |
8b3d6663 AB |
2393 | { "decr", &spufs_decr_ops, 0666, }, |
2394 | { "decr_status", &spufs_decr_status_ops, 0666, }, | |
8b3d6663 | 2395 | { "event_mask", &spufs_event_mask_ops, 0666, }, |
b9e3bd77 | 2396 | { "event_status", &spufs_event_status_ops, 0444, }, |
27d5bf2a | 2397 | { "psmap", &spufs_psmap_fops, 0666, }, |
86767277 AB |
2398 | { "phys-id", &spufs_id_ops, 0666, }, |
2399 | { "object-id", &spufs_object_id_ops, 0666, }, | |
69a2f00c DGM |
2400 | { "mbox_info", &spufs_mbox_info_fops, 0444, }, |
2401 | { "ibox_info", &spufs_ibox_info_fops, 0444, }, | |
2402 | { "wbox_info", &spufs_wbox_info_fops, 0444, }, | |
b9e3bd77 DGM |
2403 | { "dma_info", &spufs_dma_info_fops, 0444, }, |
2404 | { "proxydma_info", &spufs_proxydma_info_fops, 0444, }, | |
476273ad | 2405 | { "tid", &spufs_tid_fops, 0444, }, |
e9f8a0b6 | 2406 | { "stat", &spufs_stat_fops, 0444, }, |
67207b96 AB |
2407 | {}, |
2408 | }; | |
5737edd1 MN |
2409 | |
2410 | struct tree_descr spufs_dir_nosched_contents[] = { | |
cbe709c1 | 2411 | { "capabilities", &spufs_caps_fops, 0444, }, |
5737edd1 MN |
2412 | { "mem", &spufs_mem_fops, 0666, }, |
2413 | { "mbox", &spufs_mbox_fops, 0444, }, | |
2414 | { "ibox", &spufs_ibox_fops, 0444, }, | |
2415 | { "wbox", &spufs_wbox_fops, 0222, }, | |
2416 | { "mbox_stat", &spufs_mbox_stat_fops, 0444, }, | |
2417 | { "ibox_stat", &spufs_ibox_stat_fops, 0444, }, | |
2418 | { "wbox_stat", &spufs_wbox_stat_fops, 0444, }, | |
d054b36f JK |
2419 | { "signal1", &spufs_signal1_nosched_fops, 0222, }, |
2420 | { "signal2", &spufs_signal2_nosched_fops, 0222, }, | |
5737edd1 MN |
2421 | { "signal1_type", &spufs_signal1_type, 0666, }, |
2422 | { "signal2_type", &spufs_signal2_type, 0666, }, | |
2423 | { "mss", &spufs_mss_fops, 0666, }, | |
2424 | { "mfc", &spufs_mfc_fops, 0666, }, | |
2425 | { "cntl", &spufs_cntl_fops, 0666, }, | |
2426 | { "npc", &spufs_npc_ops, 0666, }, | |
2427 | { "psmap", &spufs_psmap_fops, 0666, }, | |
2428 | { "phys-id", &spufs_id_ops, 0666, }, | |
2429 | { "object-id", &spufs_object_id_ops, 0666, }, | |
476273ad | 2430 | { "tid", &spufs_tid_fops, 0444, }, |
e9f8a0b6 | 2431 | { "stat", &spufs_stat_fops, 0444, }, |
5737edd1 MN |
2432 | {}, |
2433 | }; | |
bf1ab978 DGM |
2434 | |
2435 | struct spufs_coredump_reader spufs_coredump_read[] = { | |
4fca9c42 ME |
2436 | { "regs", __spufs_regs_read, NULL, sizeof(struct spu_reg128[128])}, |
2437 | { "fpcr", __spufs_fpcr_read, NULL, sizeof(struct spu_reg128) }, | |
104f0cc2 ME |
2438 | { "lslr", NULL, spufs_lslr_get, 19 }, |
2439 | { "decr", NULL, spufs_decr_get, 19 }, | |
2440 | { "decr_status", NULL, spufs_decr_status_get, 19 }, | |
4fca9c42 ME |
2441 | { "mem", __spufs_mem_read, NULL, LS_SIZE, }, |
2442 | { "signal1", __spufs_signal1_read, NULL, sizeof(u32) }, | |
104f0cc2 | 2443 | { "signal1_type", NULL, spufs_signal1_type_get, 19 }, |
4fca9c42 | 2444 | { "signal2", __spufs_signal2_read, NULL, sizeof(u32) }, |
104f0cc2 ME |
2445 | { "signal2_type", NULL, spufs_signal2_type_get, 19 }, |
2446 | { "event_mask", NULL, spufs_event_mask_get, 19 }, | |
2447 | { "event_status", NULL, spufs_event_status_get, 19 }, | |
4fca9c42 ME |
2448 | { "mbox_info", __spufs_mbox_info_read, NULL, sizeof(u32) }, |
2449 | { "ibox_info", __spufs_ibox_info_read, NULL, sizeof(u32) }, | |
2450 | { "wbox_info", __spufs_wbox_info_read, NULL, 4 * sizeof(u32)}, | |
2451 | { "dma_info", __spufs_dma_info_read, NULL, sizeof(struct spu_dma_info)}, | |
2452 | { "proxydma_info", __spufs_proxydma_info_read, | |
2453 | NULL, sizeof(struct spu_proxydma_info)}, | |
104f0cc2 ME |
2454 | { "object-id", NULL, spufs_object_id_get, 19 }, |
2455 | { "npc", NULL, spufs_npc_get, 19 }, | |
936d5bf1 | 2456 | { NULL }, |
bf1ab978 | 2457 | }; |