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Commit | Line | Data |
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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> |
67207b96 AB |
32 | |
33 | #include <asm/io.h> | |
34 | #include <asm/semaphore.h> | |
35 | #include <asm/spu.h> | |
b9e3bd77 | 36 | #include <asm/spu_info.h> |
67207b96 AB |
37 | #include <asm/uaccess.h> |
38 | ||
39 | #include "spufs.h" | |
40 | ||
27d5bf2a BH |
41 | #define SPUFS_MMAP_4K (PAGE_SIZE == 0x1000) |
42 | ||
cbe709c1 | 43 | |
67207b96 AB |
44 | static int |
45 | spufs_mem_open(struct inode *inode, struct file *file) | |
46 | { | |
47 | struct spufs_inode_info *i = SPUFS_I(inode); | |
6df10a82 | 48 | struct spu_context *ctx = i->i_ctx; |
43c2bbd9 | 49 | |
47d3a5fa | 50 | mutex_lock(&ctx->mapping_lock); |
6df10a82 | 51 | file->private_data = ctx; |
43c2bbd9 CH |
52 | if (!i->i_openers++) |
53 | ctx->local_store = inode->i_mapping; | |
47d3a5fa | 54 | mutex_unlock(&ctx->mapping_lock); |
43c2bbd9 CH |
55 | return 0; |
56 | } | |
57 | ||
58 | static int | |
59 | spufs_mem_release(struct inode *inode, struct file *file) | |
60 | { | |
61 | struct spufs_inode_info *i = SPUFS_I(inode); | |
62 | struct spu_context *ctx = i->i_ctx; | |
63 | ||
47d3a5fa | 64 | mutex_lock(&ctx->mapping_lock); |
43c2bbd9 CH |
65 | if (!--i->i_openers) |
66 | ctx->local_store = NULL; | |
47d3a5fa | 67 | mutex_unlock(&ctx->mapping_lock); |
67207b96 AB |
68 | return 0; |
69 | } | |
70 | ||
bf1ab978 DGM |
71 | static ssize_t |
72 | __spufs_mem_read(struct spu_context *ctx, char __user *buffer, | |
73 | size_t size, loff_t *pos) | |
74 | { | |
75 | char *local_store = ctx->ops->get_ls(ctx); | |
76 | return simple_read_from_buffer(buffer, size, pos, local_store, | |
77 | LS_SIZE); | |
78 | } | |
79 | ||
67207b96 AB |
80 | static ssize_t |
81 | spufs_mem_read(struct file *file, char __user *buffer, | |
82 | size_t size, loff_t *pos) | |
83 | { | |
bf1ab978 | 84 | struct spu_context *ctx = file->private_data; |
aa0ed2bd | 85 | ssize_t ret; |
67207b96 | 86 | |
8b3d6663 | 87 | spu_acquire(ctx); |
bf1ab978 | 88 | ret = __spufs_mem_read(ctx, buffer, size, pos); |
8b3d6663 | 89 | spu_release(ctx); |
67207b96 AB |
90 | return ret; |
91 | } | |
92 | ||
93 | static ssize_t | |
94 | spufs_mem_write(struct file *file, const char __user *buffer, | |
aa0ed2bd | 95 | size_t size, loff_t *ppos) |
67207b96 AB |
96 | { |
97 | struct spu_context *ctx = file->private_data; | |
8b3d6663 | 98 | char *local_store; |
aa0ed2bd | 99 | loff_t pos = *ppos; |
8b3d6663 | 100 | int ret; |
67207b96 | 101 | |
aa0ed2bd AB |
102 | if (pos < 0) |
103 | return -EINVAL; | |
104 | if (pos > LS_SIZE) | |
67207b96 | 105 | return -EFBIG; |
aa0ed2bd AB |
106 | if (size > LS_SIZE - pos) |
107 | size = LS_SIZE - pos; | |
8b3d6663 AB |
108 | |
109 | spu_acquire(ctx); | |
8b3d6663 | 110 | local_store = ctx->ops->get_ls(ctx); |
aa0ed2bd | 111 | ret = copy_from_user(local_store + pos, buffer, size); |
8b3d6663 | 112 | spu_release(ctx); |
aa0ed2bd AB |
113 | |
114 | if (ret) | |
115 | return -EFAULT; | |
116 | *ppos = pos + size; | |
117 | return size; | |
67207b96 AB |
118 | } |
119 | ||
78bde53e BH |
120 | static unsigned long spufs_mem_mmap_nopfn(struct vm_area_struct *vma, |
121 | unsigned long address) | |
8b3d6663 | 122 | { |
f1fa74f4 BH |
123 | struct spu_context *ctx = vma->vm_file->private_data; |
124 | unsigned long pfn, offset, addr0 = address; | |
125 | #ifdef CONFIG_SPU_FS_64K_LS | |
126 | struct spu_state *csa = &ctx->csa; | |
127 | int psize; | |
128 | ||
129 | /* Check what page size we are using */ | |
130 | psize = get_slice_psize(vma->vm_mm, address); | |
131 | ||
132 | /* Some sanity checking */ | |
133 | BUG_ON(csa->use_big_pages != (psize == MMU_PAGE_64K)); | |
134 | ||
135 | /* Wow, 64K, cool, we need to align the address though */ | |
136 | if (csa->use_big_pages) { | |
137 | BUG_ON(vma->vm_start & 0xffff); | |
138 | address &= ~0xfffful; | |
139 | } | |
140 | #endif /* CONFIG_SPU_FS_64K_LS */ | |
8b3d6663 | 141 | |
f1fa74f4 | 142 | offset = (address - vma->vm_start) + (vma->vm_pgoff << PAGE_SHIFT); |
128b8546 MN |
143 | if (offset >= LS_SIZE) |
144 | return NOPFN_SIGBUS; | |
145 | ||
f1fa74f4 BH |
146 | pr_debug("spufs_mem_mmap_nopfn address=0x%lx -> 0x%lx, offset=0x%lx\n", |
147 | addr0, address, offset); | |
148 | ||
8b3d6663 AB |
149 | spu_acquire(ctx); |
150 | ||
ac91cb8d AB |
151 | if (ctx->state == SPU_STATE_SAVED) { |
152 | vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) | |
932f535d | 153 | & ~_PAGE_NO_CACHE); |
78bde53e | 154 | pfn = vmalloc_to_pfn(ctx->csa.lscsa->ls + offset); |
ac91cb8d AB |
155 | } else { |
156 | vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) | |
78bde53e BH |
157 | | _PAGE_NO_CACHE); |
158 | pfn = (ctx->spu->local_store_phys + offset) >> PAGE_SHIFT; | |
ac91cb8d | 159 | } |
78bde53e | 160 | vm_insert_pfn(vma, address, pfn); |
8b3d6663 | 161 | |
78bde53e | 162 | spu_release(ctx); |
8b3d6663 | 163 | |
78bde53e | 164 | return NOPFN_REFAULT; |
8b3d6663 AB |
165 | } |
166 | ||
78bde53e | 167 | |
8b3d6663 | 168 | static struct vm_operations_struct spufs_mem_mmap_vmops = { |
78bde53e | 169 | .nopfn = spufs_mem_mmap_nopfn, |
8b3d6663 AB |
170 | }; |
171 | ||
f1fa74f4 | 172 | static int spufs_mem_mmap(struct file *file, struct vm_area_struct *vma) |
67207b96 | 173 | { |
f1fa74f4 BH |
174 | #ifdef CONFIG_SPU_FS_64K_LS |
175 | struct spu_context *ctx = file->private_data; | |
176 | struct spu_state *csa = &ctx->csa; | |
177 | ||
178 | /* Sanity check VMA alignment */ | |
179 | if (csa->use_big_pages) { | |
180 | pr_debug("spufs_mem_mmap 64K, start=0x%lx, end=0x%lx," | |
181 | " pgoff=0x%lx\n", vma->vm_start, vma->vm_end, | |
182 | vma->vm_pgoff); | |
183 | if (vma->vm_start & 0xffff) | |
184 | return -EINVAL; | |
185 | if (vma->vm_pgoff & 0xf) | |
186 | return -EINVAL; | |
187 | } | |
188 | #endif /* CONFIG_SPU_FS_64K_LS */ | |
189 | ||
8b3d6663 AB |
190 | if (!(vma->vm_flags & VM_SHARED)) |
191 | return -EINVAL; | |
67207b96 | 192 | |
78bde53e | 193 | vma->vm_flags |= VM_IO | VM_PFNMAP; |
8b3d6663 AB |
194 | vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) |
195 | | _PAGE_NO_CACHE); | |
196 | ||
197 | vma->vm_ops = &spufs_mem_mmap_vmops; | |
67207b96 AB |
198 | return 0; |
199 | } | |
200 | ||
f1fa74f4 BH |
201 | #ifdef CONFIG_SPU_FS_64K_LS |
202 | unsigned long spufs_get_unmapped_area(struct file *file, unsigned long addr, | |
203 | unsigned long len, unsigned long pgoff, | |
204 | unsigned long flags) | |
205 | { | |
206 | struct spu_context *ctx = file->private_data; | |
207 | struct spu_state *csa = &ctx->csa; | |
208 | ||
209 | /* If not using big pages, fallback to normal MM g_u_a */ | |
210 | if (!csa->use_big_pages) | |
211 | return current->mm->get_unmapped_area(file, addr, len, | |
212 | pgoff, flags); | |
213 | ||
214 | /* Else, try to obtain a 64K pages slice */ | |
215 | return slice_get_unmapped_area(addr, len, flags, | |
216 | MMU_PAGE_64K, 1, 0); | |
217 | } | |
218 | #endif /* CONFIG_SPU_FS_64K_LS */ | |
219 | ||
5dfe4c96 | 220 | static const struct file_operations spufs_mem_fops = { |
7022543e JK |
221 | .open = spufs_mem_open, |
222 | .release = spufs_mem_release, | |
223 | .read = spufs_mem_read, | |
224 | .write = spufs_mem_write, | |
225 | .llseek = generic_file_llseek, | |
226 | .mmap = spufs_mem_mmap, | |
f1fa74f4 BH |
227 | #ifdef CONFIG_SPU_FS_64K_LS |
228 | .get_unmapped_area = spufs_get_unmapped_area, | |
229 | #endif | |
8b3d6663 AB |
230 | }; |
231 | ||
78bde53e | 232 | static unsigned long spufs_ps_nopfn(struct vm_area_struct *vma, |
6df10a82 | 233 | unsigned long address, |
78bde53e | 234 | unsigned long ps_offs, |
27d5bf2a | 235 | unsigned long ps_size) |
6df10a82 | 236 | { |
6df10a82 | 237 | struct spu_context *ctx = vma->vm_file->private_data; |
78bde53e | 238 | unsigned long area, offset = address - vma->vm_start; |
6df10a82 MN |
239 | int ret; |
240 | ||
241 | offset += vma->vm_pgoff << PAGE_SHIFT; | |
27d5bf2a | 242 | if (offset >= ps_size) |
78bde53e | 243 | return NOPFN_SIGBUS; |
6df10a82 | 244 | |
78bde53e BH |
245 | /* error here usually means a signal.. we might want to test |
246 | * the error code more precisely though | |
247 | */ | |
26bec673 | 248 | ret = spu_acquire_runnable(ctx, 0); |
6df10a82 | 249 | if (ret) |
78bde53e | 250 | return NOPFN_REFAULT; |
6df10a82 MN |
251 | |
252 | area = ctx->spu->problem_phys + ps_offs; | |
78bde53e | 253 | vm_insert_pfn(vma, address, (area + offset) >> PAGE_SHIFT); |
6df10a82 MN |
254 | spu_release(ctx); |
255 | ||
78bde53e | 256 | return NOPFN_REFAULT; |
6df10a82 MN |
257 | } |
258 | ||
27d5bf2a | 259 | #if SPUFS_MMAP_4K |
78bde53e BH |
260 | static unsigned long spufs_cntl_mmap_nopfn(struct vm_area_struct *vma, |
261 | unsigned long address) | |
6df10a82 | 262 | { |
78bde53e | 263 | return spufs_ps_nopfn(vma, address, 0x4000, 0x1000); |
6df10a82 MN |
264 | } |
265 | ||
266 | static struct vm_operations_struct spufs_cntl_mmap_vmops = { | |
78bde53e | 267 | .nopfn = spufs_cntl_mmap_nopfn, |
6df10a82 MN |
268 | }; |
269 | ||
270 | /* | |
271 | * mmap support for problem state control area [0x4000 - 0x4fff]. | |
6df10a82 MN |
272 | */ |
273 | static int spufs_cntl_mmap(struct file *file, struct vm_area_struct *vma) | |
274 | { | |
275 | if (!(vma->vm_flags & VM_SHARED)) | |
276 | return -EINVAL; | |
277 | ||
78bde53e | 278 | vma->vm_flags |= VM_IO | VM_PFNMAP; |
6df10a82 | 279 | vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) |
23cc7701 | 280 | | _PAGE_NO_CACHE | _PAGE_GUARDED); |
6df10a82 MN |
281 | |
282 | vma->vm_ops = &spufs_cntl_mmap_vmops; | |
283 | return 0; | |
284 | } | |
27d5bf2a BH |
285 | #else /* SPUFS_MMAP_4K */ |
286 | #define spufs_cntl_mmap NULL | |
287 | #endif /* !SPUFS_MMAP_4K */ | |
6df10a82 | 288 | |
e1dbff2b | 289 | static u64 spufs_cntl_get(void *data) |
6df10a82 | 290 | { |
e1dbff2b AB |
291 | struct spu_context *ctx = data; |
292 | u64 val; | |
6df10a82 | 293 | |
e1dbff2b AB |
294 | spu_acquire(ctx); |
295 | val = ctx->ops->status_read(ctx); | |
296 | spu_release(ctx); | |
297 | ||
298 | return val; | |
6df10a82 MN |
299 | } |
300 | ||
e1dbff2b | 301 | static void spufs_cntl_set(void *data, u64 val) |
6df10a82 | 302 | { |
e1dbff2b AB |
303 | struct spu_context *ctx = data; |
304 | ||
305 | spu_acquire(ctx); | |
306 | ctx->ops->runcntl_write(ctx, val); | |
307 | spu_release(ctx); | |
6df10a82 MN |
308 | } |
309 | ||
e1dbff2b | 310 | static int spufs_cntl_open(struct inode *inode, struct file *file) |
6df10a82 | 311 | { |
e1dbff2b AB |
312 | struct spufs_inode_info *i = SPUFS_I(inode); |
313 | struct spu_context *ctx = i->i_ctx; | |
314 | ||
47d3a5fa | 315 | mutex_lock(&ctx->mapping_lock); |
e1dbff2b | 316 | file->private_data = ctx; |
43c2bbd9 CH |
317 | if (!i->i_openers++) |
318 | ctx->cntl = inode->i_mapping; | |
47d3a5fa | 319 | mutex_unlock(&ctx->mapping_lock); |
e1dbff2b AB |
320 | return simple_attr_open(inode, file, spufs_cntl_get, |
321 | spufs_cntl_set, "0x%08lx"); | |
6df10a82 MN |
322 | } |
323 | ||
43c2bbd9 CH |
324 | static int |
325 | spufs_cntl_release(struct inode *inode, struct file *file) | |
326 | { | |
327 | struct spufs_inode_info *i = SPUFS_I(inode); | |
328 | struct spu_context *ctx = i->i_ctx; | |
329 | ||
330 | simple_attr_close(inode, file); | |
331 | ||
47d3a5fa | 332 | mutex_lock(&ctx->mapping_lock); |
43c2bbd9 CH |
333 | if (!--i->i_openers) |
334 | ctx->cntl = NULL; | |
47d3a5fa | 335 | mutex_unlock(&ctx->mapping_lock); |
43c2bbd9 CH |
336 | return 0; |
337 | } | |
338 | ||
5dfe4c96 | 339 | static const struct file_operations spufs_cntl_fops = { |
6df10a82 | 340 | .open = spufs_cntl_open, |
43c2bbd9 | 341 | .release = spufs_cntl_release, |
e1dbff2b AB |
342 | .read = simple_attr_read, |
343 | .write = simple_attr_write, | |
6df10a82 | 344 | .mmap = spufs_cntl_mmap, |
6df10a82 MN |
345 | }; |
346 | ||
8b3d6663 AB |
347 | static int |
348 | spufs_regs_open(struct inode *inode, struct file *file) | |
349 | { | |
350 | struct spufs_inode_info *i = SPUFS_I(inode); | |
351 | file->private_data = i->i_ctx; | |
352 | return 0; | |
353 | } | |
354 | ||
bf1ab978 DGM |
355 | static ssize_t |
356 | __spufs_regs_read(struct spu_context *ctx, char __user *buffer, | |
357 | size_t size, loff_t *pos) | |
358 | { | |
359 | struct spu_lscsa *lscsa = ctx->csa.lscsa; | |
360 | return simple_read_from_buffer(buffer, size, pos, | |
361 | lscsa->gprs, sizeof lscsa->gprs); | |
362 | } | |
363 | ||
8b3d6663 AB |
364 | static ssize_t |
365 | spufs_regs_read(struct file *file, char __user *buffer, | |
366 | size_t size, loff_t *pos) | |
367 | { | |
8b3d6663 | 368 | int ret; |
bf1ab978 | 369 | struct spu_context *ctx = file->private_data; |
8b3d6663 AB |
370 | |
371 | spu_acquire_saved(ctx); | |
bf1ab978 | 372 | ret = __spufs_regs_read(ctx, buffer, size, pos); |
8b3d6663 AB |
373 | spu_release(ctx); |
374 | return ret; | |
375 | } | |
376 | ||
377 | static ssize_t | |
378 | spufs_regs_write(struct file *file, const char __user *buffer, | |
379 | size_t size, loff_t *pos) | |
380 | { | |
381 | struct spu_context *ctx = file->private_data; | |
382 | struct spu_lscsa *lscsa = ctx->csa.lscsa; | |
383 | int ret; | |
384 | ||
385 | size = min_t(ssize_t, sizeof lscsa->gprs - *pos, size); | |
386 | if (size <= 0) | |
387 | return -EFBIG; | |
388 | *pos += size; | |
389 | ||
390 | spu_acquire_saved(ctx); | |
391 | ||
392 | ret = copy_from_user(lscsa->gprs + *pos - size, | |
393 | buffer, size) ? -EFAULT : size; | |
394 | ||
395 | spu_release(ctx); | |
396 | return ret; | |
397 | } | |
398 | ||
5dfe4c96 | 399 | static const struct file_operations spufs_regs_fops = { |
8b3d6663 AB |
400 | .open = spufs_regs_open, |
401 | .read = spufs_regs_read, | |
402 | .write = spufs_regs_write, | |
67207b96 AB |
403 | .llseek = generic_file_llseek, |
404 | }; | |
405 | ||
bf1ab978 DGM |
406 | static ssize_t |
407 | __spufs_fpcr_read(struct spu_context *ctx, char __user * buffer, | |
408 | size_t size, loff_t * pos) | |
409 | { | |
410 | struct spu_lscsa *lscsa = ctx->csa.lscsa; | |
411 | return simple_read_from_buffer(buffer, size, pos, | |
412 | &lscsa->fpcr, sizeof(lscsa->fpcr)); | |
413 | } | |
414 | ||
8b3d6663 AB |
415 | static ssize_t |
416 | spufs_fpcr_read(struct file *file, char __user * buffer, | |
417 | size_t size, loff_t * pos) | |
418 | { | |
8b3d6663 | 419 | int ret; |
bf1ab978 | 420 | struct spu_context *ctx = file->private_data; |
8b3d6663 AB |
421 | |
422 | spu_acquire_saved(ctx); | |
bf1ab978 | 423 | ret = __spufs_fpcr_read(ctx, buffer, size, pos); |
8b3d6663 AB |
424 | spu_release(ctx); |
425 | return ret; | |
426 | } | |
427 | ||
428 | static ssize_t | |
429 | spufs_fpcr_write(struct file *file, const char __user * buffer, | |
430 | size_t size, loff_t * pos) | |
431 | { | |
432 | struct spu_context *ctx = file->private_data; | |
433 | struct spu_lscsa *lscsa = ctx->csa.lscsa; | |
434 | int ret; | |
435 | ||
436 | size = min_t(ssize_t, sizeof(lscsa->fpcr) - *pos, size); | |
437 | if (size <= 0) | |
438 | return -EFBIG; | |
439 | *pos += size; | |
440 | ||
441 | spu_acquire_saved(ctx); | |
442 | ||
443 | ret = copy_from_user((char *)&lscsa->fpcr + *pos - size, | |
444 | buffer, size) ? -EFAULT : size; | |
445 | ||
446 | spu_release(ctx); | |
447 | return ret; | |
448 | } | |
449 | ||
5dfe4c96 | 450 | static const struct file_operations spufs_fpcr_fops = { |
8b3d6663 AB |
451 | .open = spufs_regs_open, |
452 | .read = spufs_fpcr_read, | |
453 | .write = spufs_fpcr_write, | |
454 | .llseek = generic_file_llseek, | |
455 | }; | |
456 | ||
67207b96 AB |
457 | /* generic open function for all pipe-like files */ |
458 | static int spufs_pipe_open(struct inode *inode, struct file *file) | |
459 | { | |
460 | struct spufs_inode_info *i = SPUFS_I(inode); | |
461 | file->private_data = i->i_ctx; | |
462 | ||
463 | return nonseekable_open(inode, file); | |
464 | } | |
465 | ||
cdcc89bb AB |
466 | /* |
467 | * Read as many bytes from the mailbox as possible, until | |
468 | * one of the conditions becomes true: | |
469 | * | |
470 | * - no more data available in the mailbox | |
471 | * - end of the user provided buffer | |
472 | * - end of the mapped area | |
473 | */ | |
67207b96 AB |
474 | static ssize_t spufs_mbox_read(struct file *file, char __user *buf, |
475 | size_t len, loff_t *pos) | |
476 | { | |
8b3d6663 | 477 | struct spu_context *ctx = file->private_data; |
cdcc89bb AB |
478 | u32 mbox_data, __user *udata; |
479 | ssize_t count; | |
67207b96 AB |
480 | |
481 | if (len < 4) | |
482 | return -EINVAL; | |
483 | ||
cdcc89bb AB |
484 | if (!access_ok(VERIFY_WRITE, buf, len)) |
485 | return -EFAULT; | |
486 | ||
487 | udata = (void __user *)buf; | |
488 | ||
8b3d6663 | 489 | spu_acquire(ctx); |
274cef5e | 490 | for (count = 0; (count + 4) <= len; count += 4, udata++) { |
cdcc89bb AB |
491 | int ret; |
492 | ret = ctx->ops->mbox_read(ctx, &mbox_data); | |
493 | if (ret == 0) | |
494 | break; | |
495 | ||
496 | /* | |
497 | * at the end of the mapped area, we can fault | |
498 | * but still need to return the data we have | |
499 | * read successfully so far. | |
500 | */ | |
501 | ret = __put_user(mbox_data, udata); | |
502 | if (ret) { | |
503 | if (!count) | |
504 | count = -EFAULT; | |
505 | break; | |
506 | } | |
507 | } | |
8b3d6663 | 508 | spu_release(ctx); |
67207b96 | 509 | |
cdcc89bb AB |
510 | if (!count) |
511 | count = -EAGAIN; | |
67207b96 | 512 | |
cdcc89bb | 513 | return count; |
67207b96 AB |
514 | } |
515 | ||
5dfe4c96 | 516 | static const struct file_operations spufs_mbox_fops = { |
67207b96 AB |
517 | .open = spufs_pipe_open, |
518 | .read = spufs_mbox_read, | |
519 | }; | |
520 | ||
521 | static ssize_t spufs_mbox_stat_read(struct file *file, char __user *buf, | |
522 | size_t len, loff_t *pos) | |
523 | { | |
8b3d6663 | 524 | struct spu_context *ctx = file->private_data; |
67207b96 AB |
525 | u32 mbox_stat; |
526 | ||
527 | if (len < 4) | |
528 | return -EINVAL; | |
529 | ||
8b3d6663 AB |
530 | spu_acquire(ctx); |
531 | ||
532 | mbox_stat = ctx->ops->mbox_stat_read(ctx) & 0xff; | |
533 | ||
534 | spu_release(ctx); | |
67207b96 AB |
535 | |
536 | if (copy_to_user(buf, &mbox_stat, sizeof mbox_stat)) | |
537 | return -EFAULT; | |
538 | ||
539 | return 4; | |
540 | } | |
541 | ||
5dfe4c96 | 542 | static const struct file_operations spufs_mbox_stat_fops = { |
67207b96 AB |
543 | .open = spufs_pipe_open, |
544 | .read = spufs_mbox_stat_read, | |
545 | }; | |
546 | ||
547 | /* low-level ibox access function */ | |
8b3d6663 | 548 | size_t spu_ibox_read(struct spu_context *ctx, u32 *data) |
67207b96 | 549 | { |
8b3d6663 AB |
550 | return ctx->ops->ibox_read(ctx, data); |
551 | } | |
67207b96 | 552 | |
8b3d6663 AB |
553 | static int spufs_ibox_fasync(int fd, struct file *file, int on) |
554 | { | |
555 | struct spu_context *ctx = file->private_data; | |
67207b96 | 556 | |
8b3d6663 | 557 | return fasync_helper(fd, file, on, &ctx->ibox_fasync); |
67207b96 | 558 | } |
67207b96 | 559 | |
8b3d6663 AB |
560 | /* interrupt-level ibox callback function. */ |
561 | void spufs_ibox_callback(struct spu *spu) | |
67207b96 | 562 | { |
8b3d6663 AB |
563 | struct spu_context *ctx = spu->ctx; |
564 | ||
565 | wake_up_all(&ctx->ibox_wq); | |
566 | kill_fasync(&ctx->ibox_fasync, SIGIO, POLLIN); | |
67207b96 AB |
567 | } |
568 | ||
cdcc89bb AB |
569 | /* |
570 | * Read as many bytes from the interrupt mailbox as possible, until | |
571 | * one of the conditions becomes true: | |
572 | * | |
573 | * - no more data available in the mailbox | |
574 | * - end of the user provided buffer | |
575 | * - end of the mapped area | |
576 | * | |
577 | * If the file is opened without O_NONBLOCK, we wait here until | |
578 | * any data is available, but return when we have been able to | |
579 | * read something. | |
580 | */ | |
67207b96 AB |
581 | static ssize_t spufs_ibox_read(struct file *file, char __user *buf, |
582 | size_t len, loff_t *pos) | |
583 | { | |
8b3d6663 | 584 | struct spu_context *ctx = file->private_data; |
cdcc89bb AB |
585 | u32 ibox_data, __user *udata; |
586 | ssize_t count; | |
67207b96 AB |
587 | |
588 | if (len < 4) | |
589 | return -EINVAL; | |
590 | ||
cdcc89bb AB |
591 | if (!access_ok(VERIFY_WRITE, buf, len)) |
592 | return -EFAULT; | |
593 | ||
594 | udata = (void __user *)buf; | |
595 | ||
8b3d6663 | 596 | spu_acquire(ctx); |
67207b96 | 597 | |
cdcc89bb AB |
598 | /* wait only for the first element */ |
599 | count = 0; | |
67207b96 | 600 | if (file->f_flags & O_NONBLOCK) { |
8b3d6663 | 601 | if (!spu_ibox_read(ctx, &ibox_data)) |
cdcc89bb | 602 | count = -EAGAIN; |
67207b96 | 603 | } else { |
cdcc89bb | 604 | count = spufs_wait(ctx->ibox_wq, spu_ibox_read(ctx, &ibox_data)); |
67207b96 | 605 | } |
cdcc89bb AB |
606 | if (count) |
607 | goto out; | |
67207b96 | 608 | |
cdcc89bb AB |
609 | /* if we can't write at all, return -EFAULT */ |
610 | count = __put_user(ibox_data, udata); | |
611 | if (count) | |
612 | goto out; | |
8b3d6663 | 613 | |
cdcc89bb AB |
614 | for (count = 4, udata++; (count + 4) <= len; count += 4, udata++) { |
615 | int ret; | |
616 | ret = ctx->ops->ibox_read(ctx, &ibox_data); | |
617 | if (ret == 0) | |
618 | break; | |
619 | /* | |
620 | * at the end of the mapped area, we can fault | |
621 | * but still need to return the data we have | |
622 | * read successfully so far. | |
623 | */ | |
624 | ret = __put_user(ibox_data, udata); | |
625 | if (ret) | |
626 | break; | |
627 | } | |
67207b96 | 628 | |
cdcc89bb AB |
629 | out: |
630 | spu_release(ctx); | |
67207b96 | 631 | |
cdcc89bb | 632 | return count; |
67207b96 AB |
633 | } |
634 | ||
635 | static unsigned int spufs_ibox_poll(struct file *file, poll_table *wait) | |
636 | { | |
8b3d6663 | 637 | struct spu_context *ctx = file->private_data; |
67207b96 AB |
638 | unsigned int mask; |
639 | ||
8b3d6663 | 640 | poll_wait(file, &ctx->ibox_wq, wait); |
67207b96 | 641 | |
3a843d7c AB |
642 | spu_acquire(ctx); |
643 | mask = ctx->ops->mbox_stat_poll(ctx, POLLIN | POLLRDNORM); | |
644 | spu_release(ctx); | |
67207b96 AB |
645 | |
646 | return mask; | |
647 | } | |
648 | ||
5dfe4c96 | 649 | static const struct file_operations spufs_ibox_fops = { |
67207b96 AB |
650 | .open = spufs_pipe_open, |
651 | .read = spufs_ibox_read, | |
652 | .poll = spufs_ibox_poll, | |
653 | .fasync = spufs_ibox_fasync, | |
654 | }; | |
655 | ||
656 | static ssize_t spufs_ibox_stat_read(struct file *file, char __user *buf, | |
657 | size_t len, loff_t *pos) | |
658 | { | |
8b3d6663 | 659 | struct spu_context *ctx = file->private_data; |
67207b96 AB |
660 | u32 ibox_stat; |
661 | ||
662 | if (len < 4) | |
663 | return -EINVAL; | |
664 | ||
8b3d6663 AB |
665 | spu_acquire(ctx); |
666 | ibox_stat = (ctx->ops->mbox_stat_read(ctx) >> 16) & 0xff; | |
667 | spu_release(ctx); | |
67207b96 AB |
668 | |
669 | if (copy_to_user(buf, &ibox_stat, sizeof ibox_stat)) | |
670 | return -EFAULT; | |
671 | ||
672 | return 4; | |
673 | } | |
674 | ||
5dfe4c96 | 675 | static const struct file_operations spufs_ibox_stat_fops = { |
67207b96 AB |
676 | .open = spufs_pipe_open, |
677 | .read = spufs_ibox_stat_read, | |
678 | }; | |
679 | ||
680 | /* low-level mailbox write */ | |
8b3d6663 | 681 | size_t spu_wbox_write(struct spu_context *ctx, u32 data) |
67207b96 | 682 | { |
8b3d6663 AB |
683 | return ctx->ops->wbox_write(ctx, data); |
684 | } | |
67207b96 | 685 | |
8b3d6663 AB |
686 | static int spufs_wbox_fasync(int fd, struct file *file, int on) |
687 | { | |
688 | struct spu_context *ctx = file->private_data; | |
689 | int ret; | |
67207b96 | 690 | |
8b3d6663 | 691 | ret = fasync_helper(fd, file, on, &ctx->wbox_fasync); |
67207b96 | 692 | |
67207b96 AB |
693 | return ret; |
694 | } | |
67207b96 | 695 | |
8b3d6663 AB |
696 | /* interrupt-level wbox callback function. */ |
697 | void spufs_wbox_callback(struct spu *spu) | |
67207b96 | 698 | { |
8b3d6663 AB |
699 | struct spu_context *ctx = spu->ctx; |
700 | ||
701 | wake_up_all(&ctx->wbox_wq); | |
702 | kill_fasync(&ctx->wbox_fasync, SIGIO, POLLOUT); | |
67207b96 AB |
703 | } |
704 | ||
cdcc89bb AB |
705 | /* |
706 | * Write as many bytes to the interrupt mailbox as possible, until | |
707 | * one of the conditions becomes true: | |
708 | * | |
709 | * - the mailbox is full | |
710 | * - end of the user provided buffer | |
711 | * - end of the mapped area | |
712 | * | |
713 | * If the file is opened without O_NONBLOCK, we wait here until | |
714 | * space is availabyl, but return when we have been able to | |
715 | * write something. | |
716 | */ | |
67207b96 AB |
717 | static ssize_t spufs_wbox_write(struct file *file, const char __user *buf, |
718 | size_t len, loff_t *pos) | |
719 | { | |
8b3d6663 | 720 | struct spu_context *ctx = file->private_data; |
cdcc89bb AB |
721 | u32 wbox_data, __user *udata; |
722 | ssize_t count; | |
67207b96 AB |
723 | |
724 | if (len < 4) | |
725 | return -EINVAL; | |
726 | ||
cdcc89bb AB |
727 | udata = (void __user *)buf; |
728 | if (!access_ok(VERIFY_READ, buf, len)) | |
729 | return -EFAULT; | |
730 | ||
731 | if (__get_user(wbox_data, udata)) | |
67207b96 AB |
732 | return -EFAULT; |
733 | ||
8b3d6663 AB |
734 | spu_acquire(ctx); |
735 | ||
cdcc89bb AB |
736 | /* |
737 | * make sure we can at least write one element, by waiting | |
738 | * in case of !O_NONBLOCK | |
739 | */ | |
740 | count = 0; | |
67207b96 | 741 | if (file->f_flags & O_NONBLOCK) { |
8b3d6663 | 742 | if (!spu_wbox_write(ctx, wbox_data)) |
cdcc89bb | 743 | count = -EAGAIN; |
67207b96 | 744 | } else { |
cdcc89bb | 745 | count = spufs_wait(ctx->wbox_wq, spu_wbox_write(ctx, wbox_data)); |
67207b96 AB |
746 | } |
747 | ||
cdcc89bb AB |
748 | if (count) |
749 | goto out; | |
8b3d6663 | 750 | |
cdcc89bb AB |
751 | /* write aѕ much as possible */ |
752 | for (count = 4, udata++; (count + 4) <= len; count += 4, udata++) { | |
753 | int ret; | |
754 | ret = __get_user(wbox_data, udata); | |
755 | if (ret) | |
756 | break; | |
757 | ||
758 | ret = spu_wbox_write(ctx, wbox_data); | |
759 | if (ret == 0) | |
760 | break; | |
761 | } | |
762 | ||
763 | out: | |
764 | spu_release(ctx); | |
765 | return count; | |
67207b96 AB |
766 | } |
767 | ||
768 | static unsigned int spufs_wbox_poll(struct file *file, poll_table *wait) | |
769 | { | |
8b3d6663 | 770 | struct spu_context *ctx = file->private_data; |
67207b96 AB |
771 | unsigned int mask; |
772 | ||
8b3d6663 | 773 | poll_wait(file, &ctx->wbox_wq, wait); |
67207b96 | 774 | |
3a843d7c AB |
775 | spu_acquire(ctx); |
776 | mask = ctx->ops->mbox_stat_poll(ctx, POLLOUT | POLLWRNORM); | |
777 | spu_release(ctx); | |
67207b96 AB |
778 | |
779 | return mask; | |
780 | } | |
781 | ||
5dfe4c96 | 782 | static const struct file_operations spufs_wbox_fops = { |
67207b96 AB |
783 | .open = spufs_pipe_open, |
784 | .write = spufs_wbox_write, | |
785 | .poll = spufs_wbox_poll, | |
786 | .fasync = spufs_wbox_fasync, | |
787 | }; | |
788 | ||
789 | static ssize_t spufs_wbox_stat_read(struct file *file, char __user *buf, | |
790 | size_t len, loff_t *pos) | |
791 | { | |
8b3d6663 | 792 | struct spu_context *ctx = file->private_data; |
67207b96 AB |
793 | u32 wbox_stat; |
794 | ||
795 | if (len < 4) | |
796 | return -EINVAL; | |
797 | ||
8b3d6663 AB |
798 | spu_acquire(ctx); |
799 | wbox_stat = (ctx->ops->mbox_stat_read(ctx) >> 8) & 0xff; | |
800 | spu_release(ctx); | |
67207b96 AB |
801 | |
802 | if (copy_to_user(buf, &wbox_stat, sizeof wbox_stat)) | |
803 | return -EFAULT; | |
804 | ||
805 | return 4; | |
806 | } | |
807 | ||
5dfe4c96 | 808 | static const struct file_operations spufs_wbox_stat_fops = { |
67207b96 AB |
809 | .open = spufs_pipe_open, |
810 | .read = spufs_wbox_stat_read, | |
811 | }; | |
812 | ||
6df10a82 MN |
813 | static int spufs_signal1_open(struct inode *inode, struct file *file) |
814 | { | |
815 | struct spufs_inode_info *i = SPUFS_I(inode); | |
816 | struct spu_context *ctx = i->i_ctx; | |
43c2bbd9 | 817 | |
47d3a5fa | 818 | mutex_lock(&ctx->mapping_lock); |
6df10a82 | 819 | file->private_data = ctx; |
43c2bbd9 CH |
820 | if (!i->i_openers++) |
821 | ctx->signal1 = inode->i_mapping; | |
47d3a5fa | 822 | mutex_unlock(&ctx->mapping_lock); |
6df10a82 MN |
823 | return nonseekable_open(inode, file); |
824 | } | |
825 | ||
43c2bbd9 CH |
826 | static int |
827 | spufs_signal1_release(struct inode *inode, struct file *file) | |
828 | { | |
829 | struct spufs_inode_info *i = SPUFS_I(inode); | |
830 | struct spu_context *ctx = i->i_ctx; | |
831 | ||
47d3a5fa | 832 | mutex_lock(&ctx->mapping_lock); |
43c2bbd9 CH |
833 | if (!--i->i_openers) |
834 | ctx->signal1 = NULL; | |
47d3a5fa | 835 | mutex_unlock(&ctx->mapping_lock); |
43c2bbd9 CH |
836 | return 0; |
837 | } | |
838 | ||
bf1ab978 | 839 | static ssize_t __spufs_signal1_read(struct spu_context *ctx, char __user *buf, |
67207b96 AB |
840 | size_t len, loff_t *pos) |
841 | { | |
17f88ceb | 842 | int ret = 0; |
67207b96 AB |
843 | u32 data; |
844 | ||
67207b96 AB |
845 | if (len < 4) |
846 | return -EINVAL; | |
847 | ||
17f88ceb DGM |
848 | if (ctx->csa.spu_chnlcnt_RW[3]) { |
849 | data = ctx->csa.spu_chnldata_RW[3]; | |
850 | ret = 4; | |
851 | } | |
8b3d6663 | 852 | |
17f88ceb DGM |
853 | if (!ret) |
854 | goto out; | |
855 | ||
67207b96 AB |
856 | if (copy_to_user(buf, &data, 4)) |
857 | return -EFAULT; | |
858 | ||
17f88ceb DGM |
859 | out: |
860 | return ret; | |
67207b96 AB |
861 | } |
862 | ||
bf1ab978 DGM |
863 | static ssize_t spufs_signal1_read(struct file *file, char __user *buf, |
864 | size_t len, loff_t *pos) | |
865 | { | |
866 | int ret; | |
867 | struct spu_context *ctx = file->private_data; | |
868 | ||
869 | spu_acquire_saved(ctx); | |
870 | ret = __spufs_signal1_read(ctx, buf, len, pos); | |
871 | spu_release(ctx); | |
872 | ||
873 | return ret; | |
874 | } | |
875 | ||
67207b96 AB |
876 | static ssize_t spufs_signal1_write(struct file *file, const char __user *buf, |
877 | size_t len, loff_t *pos) | |
878 | { | |
879 | struct spu_context *ctx; | |
67207b96 AB |
880 | u32 data; |
881 | ||
882 | ctx = file->private_data; | |
67207b96 AB |
883 | |
884 | if (len < 4) | |
885 | return -EINVAL; | |
886 | ||
887 | if (copy_from_user(&data, buf, 4)) | |
888 | return -EFAULT; | |
889 | ||
8b3d6663 AB |
890 | spu_acquire(ctx); |
891 | ctx->ops->signal1_write(ctx, data); | |
892 | spu_release(ctx); | |
67207b96 AB |
893 | |
894 | return 4; | |
895 | } | |
896 | ||
78bde53e BH |
897 | static unsigned long spufs_signal1_mmap_nopfn(struct vm_area_struct *vma, |
898 | unsigned long address) | |
6df10a82 | 899 | { |
27d5bf2a | 900 | #if PAGE_SIZE == 0x1000 |
78bde53e | 901 | return spufs_ps_nopfn(vma, address, 0x14000, 0x1000); |
27d5bf2a BH |
902 | #elif PAGE_SIZE == 0x10000 |
903 | /* For 64k pages, both signal1 and signal2 can be used to mmap the whole | |
904 | * signal 1 and 2 area | |
905 | */ | |
78bde53e | 906 | return spufs_ps_nopfn(vma, address, 0x10000, 0x10000); |
27d5bf2a BH |
907 | #else |
908 | #error unsupported page size | |
909 | #endif | |
6df10a82 MN |
910 | } |
911 | ||
912 | static struct vm_operations_struct spufs_signal1_mmap_vmops = { | |
78bde53e | 913 | .nopfn = spufs_signal1_mmap_nopfn, |
6df10a82 MN |
914 | }; |
915 | ||
916 | static int spufs_signal1_mmap(struct file *file, struct vm_area_struct *vma) | |
917 | { | |
918 | if (!(vma->vm_flags & VM_SHARED)) | |
919 | return -EINVAL; | |
920 | ||
78bde53e | 921 | vma->vm_flags |= VM_IO | VM_PFNMAP; |
6df10a82 | 922 | vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) |
23cc7701 | 923 | | _PAGE_NO_CACHE | _PAGE_GUARDED); |
6df10a82 MN |
924 | |
925 | vma->vm_ops = &spufs_signal1_mmap_vmops; | |
926 | return 0; | |
927 | } | |
6df10a82 | 928 | |
5dfe4c96 | 929 | static const struct file_operations spufs_signal1_fops = { |
6df10a82 | 930 | .open = spufs_signal1_open, |
43c2bbd9 | 931 | .release = spufs_signal1_release, |
67207b96 AB |
932 | .read = spufs_signal1_read, |
933 | .write = spufs_signal1_write, | |
6df10a82 | 934 | .mmap = spufs_signal1_mmap, |
67207b96 AB |
935 | }; |
936 | ||
d054b36f JK |
937 | static const struct file_operations spufs_signal1_nosched_fops = { |
938 | .open = spufs_signal1_open, | |
939 | .release = spufs_signal1_release, | |
940 | .write = spufs_signal1_write, | |
941 | .mmap = spufs_signal1_mmap, | |
942 | }; | |
943 | ||
6df10a82 MN |
944 | static int spufs_signal2_open(struct inode *inode, struct file *file) |
945 | { | |
946 | struct spufs_inode_info *i = SPUFS_I(inode); | |
947 | struct spu_context *ctx = i->i_ctx; | |
43c2bbd9 | 948 | |
47d3a5fa | 949 | mutex_lock(&ctx->mapping_lock); |
6df10a82 | 950 | file->private_data = ctx; |
43c2bbd9 CH |
951 | if (!i->i_openers++) |
952 | ctx->signal2 = inode->i_mapping; | |
47d3a5fa | 953 | mutex_unlock(&ctx->mapping_lock); |
6df10a82 MN |
954 | return nonseekable_open(inode, file); |
955 | } | |
956 | ||
43c2bbd9 CH |
957 | static int |
958 | spufs_signal2_release(struct inode *inode, struct file *file) | |
959 | { | |
960 | struct spufs_inode_info *i = SPUFS_I(inode); | |
961 | struct spu_context *ctx = i->i_ctx; | |
962 | ||
47d3a5fa | 963 | mutex_lock(&ctx->mapping_lock); |
43c2bbd9 CH |
964 | if (!--i->i_openers) |
965 | ctx->signal2 = NULL; | |
47d3a5fa | 966 | mutex_unlock(&ctx->mapping_lock); |
43c2bbd9 CH |
967 | return 0; |
968 | } | |
969 | ||
bf1ab978 | 970 | static ssize_t __spufs_signal2_read(struct spu_context *ctx, char __user *buf, |
67207b96 AB |
971 | size_t len, loff_t *pos) |
972 | { | |
17f88ceb | 973 | int ret = 0; |
67207b96 AB |
974 | u32 data; |
975 | ||
67207b96 AB |
976 | if (len < 4) |
977 | return -EINVAL; | |
978 | ||
17f88ceb DGM |
979 | if (ctx->csa.spu_chnlcnt_RW[4]) { |
980 | data = ctx->csa.spu_chnldata_RW[4]; | |
981 | ret = 4; | |
982 | } | |
8b3d6663 | 983 | |
17f88ceb DGM |
984 | if (!ret) |
985 | goto out; | |
986 | ||
67207b96 AB |
987 | if (copy_to_user(buf, &data, 4)) |
988 | return -EFAULT; | |
989 | ||
17f88ceb | 990 | out: |
bf1ab978 DGM |
991 | return ret; |
992 | } | |
993 | ||
994 | static ssize_t spufs_signal2_read(struct file *file, char __user *buf, | |
995 | size_t len, loff_t *pos) | |
996 | { | |
997 | struct spu_context *ctx = file->private_data; | |
998 | int ret; | |
999 | ||
1000 | spu_acquire_saved(ctx); | |
1001 | ret = __spufs_signal2_read(ctx, buf, len, pos); | |
1002 | spu_release(ctx); | |
1003 | ||
1004 | return ret; | |
67207b96 AB |
1005 | } |
1006 | ||
1007 | static ssize_t spufs_signal2_write(struct file *file, const char __user *buf, | |
1008 | size_t len, loff_t *pos) | |
1009 | { | |
1010 | struct spu_context *ctx; | |
67207b96 AB |
1011 | u32 data; |
1012 | ||
1013 | ctx = file->private_data; | |
67207b96 AB |
1014 | |
1015 | if (len < 4) | |
1016 | return -EINVAL; | |
1017 | ||
1018 | if (copy_from_user(&data, buf, 4)) | |
1019 | return -EFAULT; | |
1020 | ||
8b3d6663 AB |
1021 | spu_acquire(ctx); |
1022 | ctx->ops->signal2_write(ctx, data); | |
1023 | spu_release(ctx); | |
67207b96 AB |
1024 | |
1025 | return 4; | |
1026 | } | |
1027 | ||
27d5bf2a | 1028 | #if SPUFS_MMAP_4K |
78bde53e BH |
1029 | static unsigned long spufs_signal2_mmap_nopfn(struct vm_area_struct *vma, |
1030 | unsigned long address) | |
6df10a82 | 1031 | { |
27d5bf2a | 1032 | #if PAGE_SIZE == 0x1000 |
78bde53e | 1033 | return spufs_ps_nopfn(vma, address, 0x1c000, 0x1000); |
27d5bf2a BH |
1034 | #elif PAGE_SIZE == 0x10000 |
1035 | /* For 64k pages, both signal1 and signal2 can be used to mmap the whole | |
1036 | * signal 1 and 2 area | |
1037 | */ | |
78bde53e | 1038 | return spufs_ps_nopfn(vma, address, 0x10000, 0x10000); |
27d5bf2a BH |
1039 | #else |
1040 | #error unsupported page size | |
1041 | #endif | |
6df10a82 MN |
1042 | } |
1043 | ||
1044 | static struct vm_operations_struct spufs_signal2_mmap_vmops = { | |
78bde53e | 1045 | .nopfn = spufs_signal2_mmap_nopfn, |
6df10a82 MN |
1046 | }; |
1047 | ||
1048 | static int spufs_signal2_mmap(struct file *file, struct vm_area_struct *vma) | |
1049 | { | |
1050 | if (!(vma->vm_flags & VM_SHARED)) | |
1051 | return -EINVAL; | |
1052 | ||
78bde53e | 1053 | vma->vm_flags |= VM_IO | VM_PFNMAP; |
6df10a82 | 1054 | vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) |
23cc7701 | 1055 | | _PAGE_NO_CACHE | _PAGE_GUARDED); |
6df10a82 MN |
1056 | |
1057 | vma->vm_ops = &spufs_signal2_mmap_vmops; | |
1058 | return 0; | |
1059 | } | |
27d5bf2a BH |
1060 | #else /* SPUFS_MMAP_4K */ |
1061 | #define spufs_signal2_mmap NULL | |
1062 | #endif /* !SPUFS_MMAP_4K */ | |
6df10a82 | 1063 | |
5dfe4c96 | 1064 | static const struct file_operations spufs_signal2_fops = { |
6df10a82 | 1065 | .open = spufs_signal2_open, |
43c2bbd9 | 1066 | .release = spufs_signal2_release, |
67207b96 AB |
1067 | .read = spufs_signal2_read, |
1068 | .write = spufs_signal2_write, | |
6df10a82 | 1069 | .mmap = spufs_signal2_mmap, |
67207b96 AB |
1070 | }; |
1071 | ||
d054b36f JK |
1072 | static const struct file_operations spufs_signal2_nosched_fops = { |
1073 | .open = spufs_signal2_open, | |
1074 | .release = spufs_signal2_release, | |
1075 | .write = spufs_signal2_write, | |
1076 | .mmap = spufs_signal2_mmap, | |
1077 | }; | |
1078 | ||
67207b96 AB |
1079 | static void spufs_signal1_type_set(void *data, u64 val) |
1080 | { | |
1081 | struct spu_context *ctx = data; | |
67207b96 | 1082 | |
8b3d6663 AB |
1083 | spu_acquire(ctx); |
1084 | ctx->ops->signal1_type_set(ctx, val); | |
1085 | spu_release(ctx); | |
67207b96 AB |
1086 | } |
1087 | ||
bf1ab978 DGM |
1088 | static u64 __spufs_signal1_type_get(void *data) |
1089 | { | |
1090 | struct spu_context *ctx = data; | |
1091 | return ctx->ops->signal1_type_get(ctx); | |
1092 | } | |
1093 | ||
67207b96 AB |
1094 | static u64 spufs_signal1_type_get(void *data) |
1095 | { | |
1096 | struct spu_context *ctx = data; | |
8b3d6663 AB |
1097 | u64 ret; |
1098 | ||
1099 | spu_acquire(ctx); | |
bf1ab978 | 1100 | ret = __spufs_signal1_type_get(data); |
8b3d6663 AB |
1101 | spu_release(ctx); |
1102 | ||
1103 | return ret; | |
67207b96 AB |
1104 | } |
1105 | DEFINE_SIMPLE_ATTRIBUTE(spufs_signal1_type, spufs_signal1_type_get, | |
1106 | spufs_signal1_type_set, "%llu"); | |
1107 | ||
1108 | static void spufs_signal2_type_set(void *data, u64 val) | |
1109 | { | |
1110 | struct spu_context *ctx = data; | |
67207b96 | 1111 | |
8b3d6663 AB |
1112 | spu_acquire(ctx); |
1113 | ctx->ops->signal2_type_set(ctx, val); | |
1114 | spu_release(ctx); | |
67207b96 AB |
1115 | } |
1116 | ||
bf1ab978 DGM |
1117 | static u64 __spufs_signal2_type_get(void *data) |
1118 | { | |
1119 | struct spu_context *ctx = data; | |
1120 | return ctx->ops->signal2_type_get(ctx); | |
1121 | } | |
1122 | ||
67207b96 AB |
1123 | static u64 spufs_signal2_type_get(void *data) |
1124 | { | |
1125 | struct spu_context *ctx = data; | |
8b3d6663 AB |
1126 | u64 ret; |
1127 | ||
1128 | spu_acquire(ctx); | |
bf1ab978 | 1129 | ret = __spufs_signal2_type_get(data); |
8b3d6663 AB |
1130 | spu_release(ctx); |
1131 | ||
1132 | return ret; | |
67207b96 AB |
1133 | } |
1134 | DEFINE_SIMPLE_ATTRIBUTE(spufs_signal2_type, spufs_signal2_type_get, | |
1135 | spufs_signal2_type_set, "%llu"); | |
1136 | ||
27d5bf2a | 1137 | #if SPUFS_MMAP_4K |
78bde53e BH |
1138 | static unsigned long spufs_mss_mmap_nopfn(struct vm_area_struct *vma, |
1139 | unsigned long address) | |
d9379c4b | 1140 | { |
78bde53e | 1141 | return spufs_ps_nopfn(vma, address, 0x0000, 0x1000); |
d9379c4b AB |
1142 | } |
1143 | ||
1144 | static struct vm_operations_struct spufs_mss_mmap_vmops = { | |
78bde53e | 1145 | .nopfn = spufs_mss_mmap_nopfn, |
d9379c4b AB |
1146 | }; |
1147 | ||
1148 | /* | |
1149 | * mmap support for problem state MFC DMA area [0x0000 - 0x0fff]. | |
d9379c4b AB |
1150 | */ |
1151 | static int spufs_mss_mmap(struct file *file, struct vm_area_struct *vma) | |
1152 | { | |
1153 | if (!(vma->vm_flags & VM_SHARED)) | |
1154 | return -EINVAL; | |
1155 | ||
78bde53e | 1156 | vma->vm_flags |= VM_IO | VM_PFNMAP; |
d9379c4b | 1157 | vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) |
23cc7701 | 1158 | | _PAGE_NO_CACHE | _PAGE_GUARDED); |
d9379c4b AB |
1159 | |
1160 | vma->vm_ops = &spufs_mss_mmap_vmops; | |
1161 | return 0; | |
1162 | } | |
27d5bf2a BH |
1163 | #else /* SPUFS_MMAP_4K */ |
1164 | #define spufs_mss_mmap NULL | |
1165 | #endif /* !SPUFS_MMAP_4K */ | |
d9379c4b AB |
1166 | |
1167 | static int spufs_mss_open(struct inode *inode, struct file *file) | |
1168 | { | |
1169 | struct spufs_inode_info *i = SPUFS_I(inode); | |
17e0e270 | 1170 | struct spu_context *ctx = i->i_ctx; |
d9379c4b AB |
1171 | |
1172 | file->private_data = i->i_ctx; | |
43c2bbd9 | 1173 | |
47d3a5fa | 1174 | mutex_lock(&ctx->mapping_lock); |
43c2bbd9 CH |
1175 | if (!i->i_openers++) |
1176 | ctx->mss = inode->i_mapping; | |
47d3a5fa | 1177 | mutex_unlock(&ctx->mapping_lock); |
d9379c4b AB |
1178 | return nonseekable_open(inode, file); |
1179 | } | |
1180 | ||
43c2bbd9 CH |
1181 | static int |
1182 | spufs_mss_release(struct inode *inode, struct file *file) | |
1183 | { | |
1184 | struct spufs_inode_info *i = SPUFS_I(inode); | |
1185 | struct spu_context *ctx = i->i_ctx; | |
1186 | ||
47d3a5fa | 1187 | mutex_lock(&ctx->mapping_lock); |
43c2bbd9 CH |
1188 | if (!--i->i_openers) |
1189 | ctx->mss = NULL; | |
47d3a5fa | 1190 | mutex_unlock(&ctx->mapping_lock); |
43c2bbd9 CH |
1191 | return 0; |
1192 | } | |
1193 | ||
5dfe4c96 | 1194 | static const struct file_operations spufs_mss_fops = { |
d9379c4b | 1195 | .open = spufs_mss_open, |
43c2bbd9 | 1196 | .release = spufs_mss_release, |
d9379c4b | 1197 | .mmap = spufs_mss_mmap, |
27d5bf2a BH |
1198 | }; |
1199 | ||
78bde53e BH |
1200 | static unsigned long spufs_psmap_mmap_nopfn(struct vm_area_struct *vma, |
1201 | unsigned long address) | |
27d5bf2a | 1202 | { |
78bde53e | 1203 | return spufs_ps_nopfn(vma, address, 0x0000, 0x20000); |
27d5bf2a BH |
1204 | } |
1205 | ||
1206 | static struct vm_operations_struct spufs_psmap_mmap_vmops = { | |
78bde53e | 1207 | .nopfn = spufs_psmap_mmap_nopfn, |
27d5bf2a BH |
1208 | }; |
1209 | ||
1210 | /* | |
1211 | * mmap support for full problem state area [0x00000 - 0x1ffff]. | |
1212 | */ | |
1213 | static int spufs_psmap_mmap(struct file *file, struct vm_area_struct *vma) | |
1214 | { | |
1215 | if (!(vma->vm_flags & VM_SHARED)) | |
1216 | return -EINVAL; | |
1217 | ||
78bde53e | 1218 | vma->vm_flags |= VM_IO | VM_PFNMAP; |
27d5bf2a BH |
1219 | vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) |
1220 | | _PAGE_NO_CACHE | _PAGE_GUARDED); | |
1221 | ||
1222 | vma->vm_ops = &spufs_psmap_mmap_vmops; | |
1223 | return 0; | |
1224 | } | |
1225 | ||
1226 | static int spufs_psmap_open(struct inode *inode, struct file *file) | |
1227 | { | |
1228 | struct spufs_inode_info *i = SPUFS_I(inode); | |
17e0e270 | 1229 | struct spu_context *ctx = i->i_ctx; |
27d5bf2a | 1230 | |
47d3a5fa | 1231 | mutex_lock(&ctx->mapping_lock); |
27d5bf2a | 1232 | file->private_data = i->i_ctx; |
43c2bbd9 CH |
1233 | if (!i->i_openers++) |
1234 | ctx->psmap = inode->i_mapping; | |
47d3a5fa | 1235 | mutex_unlock(&ctx->mapping_lock); |
27d5bf2a BH |
1236 | return nonseekable_open(inode, file); |
1237 | } | |
1238 | ||
43c2bbd9 CH |
1239 | static int |
1240 | spufs_psmap_release(struct inode *inode, struct file *file) | |
1241 | { | |
1242 | struct spufs_inode_info *i = SPUFS_I(inode); | |
1243 | struct spu_context *ctx = i->i_ctx; | |
1244 | ||
47d3a5fa | 1245 | mutex_lock(&ctx->mapping_lock); |
43c2bbd9 CH |
1246 | if (!--i->i_openers) |
1247 | ctx->psmap = NULL; | |
47d3a5fa | 1248 | mutex_unlock(&ctx->mapping_lock); |
43c2bbd9 CH |
1249 | return 0; |
1250 | } | |
1251 | ||
5dfe4c96 | 1252 | static const struct file_operations spufs_psmap_fops = { |
27d5bf2a | 1253 | .open = spufs_psmap_open, |
43c2bbd9 | 1254 | .release = spufs_psmap_release, |
27d5bf2a | 1255 | .mmap = spufs_psmap_mmap, |
d9379c4b AB |
1256 | }; |
1257 | ||
1258 | ||
27d5bf2a | 1259 | #if SPUFS_MMAP_4K |
78bde53e BH |
1260 | static unsigned long spufs_mfc_mmap_nopfn(struct vm_area_struct *vma, |
1261 | unsigned long address) | |
6df10a82 | 1262 | { |
78bde53e | 1263 | return spufs_ps_nopfn(vma, address, 0x3000, 0x1000); |
6df10a82 MN |
1264 | } |
1265 | ||
1266 | static struct vm_operations_struct spufs_mfc_mmap_vmops = { | |
78bde53e | 1267 | .nopfn = spufs_mfc_mmap_nopfn, |
6df10a82 MN |
1268 | }; |
1269 | ||
1270 | /* | |
1271 | * mmap support for problem state MFC DMA area [0x0000 - 0x0fff]. | |
6df10a82 MN |
1272 | */ |
1273 | static int spufs_mfc_mmap(struct file *file, struct vm_area_struct *vma) | |
1274 | { | |
1275 | if (!(vma->vm_flags & VM_SHARED)) | |
1276 | return -EINVAL; | |
1277 | ||
78bde53e | 1278 | vma->vm_flags |= VM_IO | VM_PFNMAP; |
6df10a82 | 1279 | vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) |
23cc7701 | 1280 | | _PAGE_NO_CACHE | _PAGE_GUARDED); |
6df10a82 MN |
1281 | |
1282 | vma->vm_ops = &spufs_mfc_mmap_vmops; | |
1283 | return 0; | |
1284 | } | |
27d5bf2a BH |
1285 | #else /* SPUFS_MMAP_4K */ |
1286 | #define spufs_mfc_mmap NULL | |
1287 | #endif /* !SPUFS_MMAP_4K */ | |
a33a7d73 AB |
1288 | |
1289 | static int spufs_mfc_open(struct inode *inode, struct file *file) | |
1290 | { | |
1291 | struct spufs_inode_info *i = SPUFS_I(inode); | |
1292 | struct spu_context *ctx = i->i_ctx; | |
1293 | ||
1294 | /* we don't want to deal with DMA into other processes */ | |
1295 | if (ctx->owner != current->mm) | |
1296 | return -EINVAL; | |
1297 | ||
1298 | if (atomic_read(&inode->i_count) != 1) | |
1299 | return -EBUSY; | |
1300 | ||
47d3a5fa | 1301 | mutex_lock(&ctx->mapping_lock); |
a33a7d73 | 1302 | file->private_data = ctx; |
43c2bbd9 CH |
1303 | if (!i->i_openers++) |
1304 | ctx->mfc = inode->i_mapping; | |
47d3a5fa | 1305 | mutex_unlock(&ctx->mapping_lock); |
a33a7d73 AB |
1306 | return nonseekable_open(inode, file); |
1307 | } | |
1308 | ||
43c2bbd9 CH |
1309 | static int |
1310 | spufs_mfc_release(struct inode *inode, struct file *file) | |
1311 | { | |
1312 | struct spufs_inode_info *i = SPUFS_I(inode); | |
1313 | struct spu_context *ctx = i->i_ctx; | |
1314 | ||
47d3a5fa | 1315 | mutex_lock(&ctx->mapping_lock); |
43c2bbd9 CH |
1316 | if (!--i->i_openers) |
1317 | ctx->mfc = NULL; | |
47d3a5fa | 1318 | mutex_unlock(&ctx->mapping_lock); |
43c2bbd9 CH |
1319 | return 0; |
1320 | } | |
1321 | ||
a33a7d73 AB |
1322 | /* interrupt-level mfc callback function. */ |
1323 | void spufs_mfc_callback(struct spu *spu) | |
1324 | { | |
1325 | struct spu_context *ctx = spu->ctx; | |
1326 | ||
1327 | wake_up_all(&ctx->mfc_wq); | |
1328 | ||
1329 | pr_debug("%s %s\n", __FUNCTION__, spu->name); | |
1330 | if (ctx->mfc_fasync) { | |
1331 | u32 free_elements, tagstatus; | |
1332 | unsigned int mask; | |
1333 | ||
1334 | /* no need for spu_acquire in interrupt context */ | |
1335 | free_elements = ctx->ops->get_mfc_free_elements(ctx); | |
1336 | tagstatus = ctx->ops->read_mfc_tagstatus(ctx); | |
1337 | ||
1338 | mask = 0; | |
1339 | if (free_elements & 0xffff) | |
1340 | mask |= POLLOUT; | |
1341 | if (tagstatus & ctx->tagwait) | |
1342 | mask |= POLLIN; | |
1343 | ||
1344 | kill_fasync(&ctx->mfc_fasync, SIGIO, mask); | |
1345 | } | |
1346 | } | |
1347 | ||
1348 | static int spufs_read_mfc_tagstatus(struct spu_context *ctx, u32 *status) | |
1349 | { | |
1350 | /* See if there is one tag group is complete */ | |
1351 | /* FIXME we need locking around tagwait */ | |
1352 | *status = ctx->ops->read_mfc_tagstatus(ctx) & ctx->tagwait; | |
1353 | ctx->tagwait &= ~*status; | |
1354 | if (*status) | |
1355 | return 1; | |
1356 | ||
1357 | /* enable interrupt waiting for any tag group, | |
1358 | may silently fail if interrupts are already enabled */ | |
1359 | ctx->ops->set_mfc_query(ctx, ctx->tagwait, 1); | |
1360 | return 0; | |
1361 | } | |
1362 | ||
1363 | static ssize_t spufs_mfc_read(struct file *file, char __user *buffer, | |
1364 | size_t size, loff_t *pos) | |
1365 | { | |
1366 | struct spu_context *ctx = file->private_data; | |
1367 | int ret = -EINVAL; | |
1368 | u32 status; | |
1369 | ||
1370 | if (size != 4) | |
1371 | goto out; | |
1372 | ||
1373 | spu_acquire(ctx); | |
1374 | if (file->f_flags & O_NONBLOCK) { | |
1375 | status = ctx->ops->read_mfc_tagstatus(ctx); | |
1376 | if (!(status & ctx->tagwait)) | |
1377 | ret = -EAGAIN; | |
1378 | else | |
1379 | ctx->tagwait &= ~status; | |
1380 | } else { | |
1381 | ret = spufs_wait(ctx->mfc_wq, | |
1382 | spufs_read_mfc_tagstatus(ctx, &status)); | |
1383 | } | |
1384 | spu_release(ctx); | |
1385 | ||
1386 | if (ret) | |
1387 | goto out; | |
1388 | ||
1389 | ret = 4; | |
1390 | if (copy_to_user(buffer, &status, 4)) | |
1391 | ret = -EFAULT; | |
1392 | ||
1393 | out: | |
1394 | return ret; | |
1395 | } | |
1396 | ||
1397 | static int spufs_check_valid_dma(struct mfc_dma_command *cmd) | |
1398 | { | |
1399 | pr_debug("queueing DMA %x %lx %x %x %x\n", cmd->lsa, | |
1400 | cmd->ea, cmd->size, cmd->tag, cmd->cmd); | |
1401 | ||
1402 | switch (cmd->cmd) { | |
1403 | case MFC_PUT_CMD: | |
1404 | case MFC_PUTF_CMD: | |
1405 | case MFC_PUTB_CMD: | |
1406 | case MFC_GET_CMD: | |
1407 | case MFC_GETF_CMD: | |
1408 | case MFC_GETB_CMD: | |
1409 | break; | |
1410 | default: | |
1411 | pr_debug("invalid DMA opcode %x\n", cmd->cmd); | |
1412 | return -EIO; | |
1413 | } | |
1414 | ||
1415 | if ((cmd->lsa & 0xf) != (cmd->ea &0xf)) { | |
1416 | pr_debug("invalid DMA alignment, ea %lx lsa %x\n", | |
1417 | cmd->ea, cmd->lsa); | |
1418 | return -EIO; | |
1419 | } | |
1420 | ||
1421 | switch (cmd->size & 0xf) { | |
1422 | case 1: | |
1423 | break; | |
1424 | case 2: | |
1425 | if (cmd->lsa & 1) | |
1426 | goto error; | |
1427 | break; | |
1428 | case 4: | |
1429 | if (cmd->lsa & 3) | |
1430 | goto error; | |
1431 | break; | |
1432 | case 8: | |
1433 | if (cmd->lsa & 7) | |
1434 | goto error; | |
1435 | break; | |
1436 | case 0: | |
1437 | if (cmd->lsa & 15) | |
1438 | goto error; | |
1439 | break; | |
1440 | error: | |
1441 | default: | |
1442 | pr_debug("invalid DMA alignment %x for size %x\n", | |
1443 | cmd->lsa & 0xf, cmd->size); | |
1444 | return -EIO; | |
1445 | } | |
1446 | ||
1447 | if (cmd->size > 16 * 1024) { | |
1448 | pr_debug("invalid DMA size %x\n", cmd->size); | |
1449 | return -EIO; | |
1450 | } | |
1451 | ||
1452 | if (cmd->tag & 0xfff0) { | |
1453 | /* we reserve the higher tag numbers for kernel use */ | |
1454 | pr_debug("invalid DMA tag\n"); | |
1455 | return -EIO; | |
1456 | } | |
1457 | ||
1458 | if (cmd->class) { | |
1459 | /* not supported in this version */ | |
1460 | pr_debug("invalid DMA class\n"); | |
1461 | return -EIO; | |
1462 | } | |
1463 | ||
1464 | return 0; | |
1465 | } | |
1466 | ||
1467 | static int spu_send_mfc_command(struct spu_context *ctx, | |
1468 | struct mfc_dma_command cmd, | |
1469 | int *error) | |
1470 | { | |
1471 | *error = ctx->ops->send_mfc_command(ctx, &cmd); | |
1472 | if (*error == -EAGAIN) { | |
1473 | /* wait for any tag group to complete | |
1474 | so we have space for the new command */ | |
1475 | ctx->ops->set_mfc_query(ctx, ctx->tagwait, 1); | |
1476 | /* try again, because the queue might be | |
1477 | empty again */ | |
1478 | *error = ctx->ops->send_mfc_command(ctx, &cmd); | |
1479 | if (*error == -EAGAIN) | |
1480 | return 0; | |
1481 | } | |
1482 | return 1; | |
1483 | } | |
1484 | ||
1485 | static ssize_t spufs_mfc_write(struct file *file, const char __user *buffer, | |
1486 | size_t size, loff_t *pos) | |
1487 | { | |
1488 | struct spu_context *ctx = file->private_data; | |
1489 | struct mfc_dma_command cmd; | |
1490 | int ret = -EINVAL; | |
1491 | ||
1492 | if (size != sizeof cmd) | |
1493 | goto out; | |
1494 | ||
1495 | ret = -EFAULT; | |
1496 | if (copy_from_user(&cmd, buffer, sizeof cmd)) | |
1497 | goto out; | |
1498 | ||
1499 | ret = spufs_check_valid_dma(&cmd); | |
1500 | if (ret) | |
1501 | goto out; | |
1502 | ||
577f8f10 AM |
1503 | ret = spu_acquire_runnable(ctx, 0); |
1504 | if (ret) | |
1505 | goto out; | |
1506 | ||
a33a7d73 AB |
1507 | if (file->f_flags & O_NONBLOCK) { |
1508 | ret = ctx->ops->send_mfc_command(ctx, &cmd); | |
1509 | } else { | |
1510 | int status; | |
1511 | ret = spufs_wait(ctx->mfc_wq, | |
1512 | spu_send_mfc_command(ctx, cmd, &status)); | |
1513 | if (status) | |
1514 | ret = status; | |
1515 | } | |
a33a7d73 AB |
1516 | |
1517 | if (ret) | |
933b0e35 | 1518 | goto out_unlock; |
a33a7d73 AB |
1519 | |
1520 | ctx->tagwait |= 1 << cmd.tag; | |
3692dc66 | 1521 | ret = size; |
a33a7d73 | 1522 | |
933b0e35 KA |
1523 | out_unlock: |
1524 | spu_release(ctx); | |
a33a7d73 AB |
1525 | out: |
1526 | return ret; | |
1527 | } | |
1528 | ||
1529 | static unsigned int spufs_mfc_poll(struct file *file,poll_table *wait) | |
1530 | { | |
1531 | struct spu_context *ctx = file->private_data; | |
1532 | u32 free_elements, tagstatus; | |
1533 | unsigned int mask; | |
1534 | ||
933b0e35 KA |
1535 | poll_wait(file, &ctx->mfc_wq, wait); |
1536 | ||
a33a7d73 AB |
1537 | spu_acquire(ctx); |
1538 | ctx->ops->set_mfc_query(ctx, ctx->tagwait, 2); | |
1539 | free_elements = ctx->ops->get_mfc_free_elements(ctx); | |
1540 | tagstatus = ctx->ops->read_mfc_tagstatus(ctx); | |
1541 | spu_release(ctx); | |
1542 | ||
a33a7d73 AB |
1543 | mask = 0; |
1544 | if (free_elements & 0xffff) | |
1545 | mask |= POLLOUT | POLLWRNORM; | |
1546 | if (tagstatus & ctx->tagwait) | |
1547 | mask |= POLLIN | POLLRDNORM; | |
1548 | ||
1549 | pr_debug("%s: free %d tagstatus %d tagwait %d\n", __FUNCTION__, | |
1550 | free_elements, tagstatus, ctx->tagwait); | |
1551 | ||
1552 | return mask; | |
1553 | } | |
1554 | ||
73b6af8a | 1555 | static int spufs_mfc_flush(struct file *file, fl_owner_t id) |
a33a7d73 AB |
1556 | { |
1557 | struct spu_context *ctx = file->private_data; | |
1558 | int ret; | |
1559 | ||
1560 | spu_acquire(ctx); | |
1561 | #if 0 | |
1562 | /* this currently hangs */ | |
1563 | ret = spufs_wait(ctx->mfc_wq, | |
1564 | ctx->ops->set_mfc_query(ctx, ctx->tagwait, 2)); | |
1565 | if (ret) | |
1566 | goto out; | |
1567 | ret = spufs_wait(ctx->mfc_wq, | |
1568 | ctx->ops->read_mfc_tagstatus(ctx) == ctx->tagwait); | |
1569 | out: | |
1570 | #else | |
1571 | ret = 0; | |
1572 | #endif | |
1573 | spu_release(ctx); | |
1574 | ||
1575 | return ret; | |
1576 | } | |
1577 | ||
1578 | static int spufs_mfc_fsync(struct file *file, struct dentry *dentry, | |
1579 | int datasync) | |
1580 | { | |
73b6af8a | 1581 | return spufs_mfc_flush(file, NULL); |
a33a7d73 AB |
1582 | } |
1583 | ||
1584 | static int spufs_mfc_fasync(int fd, struct file *file, int on) | |
1585 | { | |
1586 | struct spu_context *ctx = file->private_data; | |
1587 | ||
1588 | return fasync_helper(fd, file, on, &ctx->mfc_fasync); | |
1589 | } | |
1590 | ||
5dfe4c96 | 1591 | static const struct file_operations spufs_mfc_fops = { |
a33a7d73 | 1592 | .open = spufs_mfc_open, |
43c2bbd9 | 1593 | .release = spufs_mfc_release, |
a33a7d73 AB |
1594 | .read = spufs_mfc_read, |
1595 | .write = spufs_mfc_write, | |
1596 | .poll = spufs_mfc_poll, | |
1597 | .flush = spufs_mfc_flush, | |
1598 | .fsync = spufs_mfc_fsync, | |
1599 | .fasync = spufs_mfc_fasync, | |
6df10a82 | 1600 | .mmap = spufs_mfc_mmap, |
a33a7d73 AB |
1601 | }; |
1602 | ||
67207b96 AB |
1603 | static void spufs_npc_set(void *data, u64 val) |
1604 | { | |
1605 | struct spu_context *ctx = data; | |
8b3d6663 AB |
1606 | spu_acquire(ctx); |
1607 | ctx->ops->npc_write(ctx, val); | |
1608 | spu_release(ctx); | |
67207b96 AB |
1609 | } |
1610 | ||
1611 | static u64 spufs_npc_get(void *data) | |
1612 | { | |
1613 | struct spu_context *ctx = data; | |
1614 | u64 ret; | |
8b3d6663 AB |
1615 | spu_acquire(ctx); |
1616 | ret = ctx->ops->npc_read(ctx); | |
1617 | spu_release(ctx); | |
67207b96 AB |
1618 | return ret; |
1619 | } | |
9b5047e2 DGM |
1620 | DEFINE_SIMPLE_ATTRIBUTE(spufs_npc_ops, spufs_npc_get, spufs_npc_set, |
1621 | "0x%llx\n") | |
67207b96 | 1622 | |
8b3d6663 AB |
1623 | static void spufs_decr_set(void *data, u64 val) |
1624 | { | |
1625 | struct spu_context *ctx = data; | |
1626 | struct spu_lscsa *lscsa = ctx->csa.lscsa; | |
1627 | spu_acquire_saved(ctx); | |
1628 | lscsa->decr.slot[0] = (u32) val; | |
1629 | spu_release(ctx); | |
1630 | } | |
1631 | ||
bf1ab978 | 1632 | static u64 __spufs_decr_get(void *data) |
8b3d6663 AB |
1633 | { |
1634 | struct spu_context *ctx = data; | |
1635 | struct spu_lscsa *lscsa = ctx->csa.lscsa; | |
bf1ab978 DGM |
1636 | return lscsa->decr.slot[0]; |
1637 | } | |
1638 | ||
1639 | static u64 spufs_decr_get(void *data) | |
1640 | { | |
1641 | struct spu_context *ctx = data; | |
8b3d6663 AB |
1642 | u64 ret; |
1643 | spu_acquire_saved(ctx); | |
bf1ab978 | 1644 | ret = __spufs_decr_get(data); |
8b3d6663 AB |
1645 | spu_release(ctx); |
1646 | return ret; | |
1647 | } | |
1648 | DEFINE_SIMPLE_ATTRIBUTE(spufs_decr_ops, spufs_decr_get, spufs_decr_set, | |
9b5047e2 | 1649 | "0x%llx\n") |
8b3d6663 AB |
1650 | |
1651 | static void spufs_decr_status_set(void *data, u64 val) | |
1652 | { | |
1653 | struct spu_context *ctx = data; | |
1654 | struct spu_lscsa *lscsa = ctx->csa.lscsa; | |
1655 | spu_acquire_saved(ctx); | |
1656 | lscsa->decr_status.slot[0] = (u32) val; | |
1657 | spu_release(ctx); | |
1658 | } | |
1659 | ||
bf1ab978 | 1660 | static u64 __spufs_decr_status_get(void *data) |
8b3d6663 AB |
1661 | { |
1662 | struct spu_context *ctx = data; | |
1663 | struct spu_lscsa *lscsa = ctx->csa.lscsa; | |
bf1ab978 DGM |
1664 | return lscsa->decr_status.slot[0]; |
1665 | } | |
1666 | ||
1667 | static u64 spufs_decr_status_get(void *data) | |
1668 | { | |
1669 | struct spu_context *ctx = data; | |
8b3d6663 AB |
1670 | u64 ret; |
1671 | spu_acquire_saved(ctx); | |
bf1ab978 | 1672 | ret = __spufs_decr_status_get(data); |
8b3d6663 AB |
1673 | spu_release(ctx); |
1674 | return ret; | |
1675 | } | |
1676 | DEFINE_SIMPLE_ATTRIBUTE(spufs_decr_status_ops, spufs_decr_status_get, | |
9b5047e2 | 1677 | spufs_decr_status_set, "0x%llx\n") |
8b3d6663 | 1678 | |
8b3d6663 AB |
1679 | static void spufs_event_mask_set(void *data, u64 val) |
1680 | { | |
1681 | struct spu_context *ctx = data; | |
1682 | struct spu_lscsa *lscsa = ctx->csa.lscsa; | |
1683 | spu_acquire_saved(ctx); | |
1684 | lscsa->event_mask.slot[0] = (u32) val; | |
1685 | spu_release(ctx); | |
1686 | } | |
1687 | ||
bf1ab978 | 1688 | static u64 __spufs_event_mask_get(void *data) |
8b3d6663 AB |
1689 | { |
1690 | struct spu_context *ctx = data; | |
1691 | struct spu_lscsa *lscsa = ctx->csa.lscsa; | |
bf1ab978 DGM |
1692 | return lscsa->event_mask.slot[0]; |
1693 | } | |
1694 | ||
1695 | static u64 spufs_event_mask_get(void *data) | |
1696 | { | |
1697 | struct spu_context *ctx = data; | |
8b3d6663 AB |
1698 | u64 ret; |
1699 | spu_acquire_saved(ctx); | |
bf1ab978 | 1700 | ret = __spufs_event_mask_get(data); |
8b3d6663 AB |
1701 | spu_release(ctx); |
1702 | return ret; | |
1703 | } | |
1704 | DEFINE_SIMPLE_ATTRIBUTE(spufs_event_mask_ops, spufs_event_mask_get, | |
9b5047e2 | 1705 | spufs_event_mask_set, "0x%llx\n") |
8b3d6663 | 1706 | |
bf1ab978 | 1707 | static u64 __spufs_event_status_get(void *data) |
b9e3bd77 DGM |
1708 | { |
1709 | struct spu_context *ctx = data; | |
1710 | struct spu_state *state = &ctx->csa; | |
b9e3bd77 | 1711 | u64 stat; |
b9e3bd77 DGM |
1712 | stat = state->spu_chnlcnt_RW[0]; |
1713 | if (stat) | |
bf1ab978 DGM |
1714 | return state->spu_chnldata_RW[0]; |
1715 | return 0; | |
1716 | } | |
1717 | ||
1718 | static u64 spufs_event_status_get(void *data) | |
1719 | { | |
1720 | struct spu_context *ctx = data; | |
1721 | u64 ret = 0; | |
1722 | ||
1723 | spu_acquire_saved(ctx); | |
1724 | ret = __spufs_event_status_get(data); | |
b9e3bd77 DGM |
1725 | spu_release(ctx); |
1726 | return ret; | |
1727 | } | |
1728 | DEFINE_SIMPLE_ATTRIBUTE(spufs_event_status_ops, spufs_event_status_get, | |
1729 | NULL, "0x%llx\n") | |
1730 | ||
8b3d6663 AB |
1731 | static void spufs_srr0_set(void *data, u64 val) |
1732 | { | |
1733 | struct spu_context *ctx = data; | |
1734 | struct spu_lscsa *lscsa = ctx->csa.lscsa; | |
1735 | spu_acquire_saved(ctx); | |
1736 | lscsa->srr0.slot[0] = (u32) val; | |
1737 | spu_release(ctx); | |
1738 | } | |
1739 | ||
1740 | static u64 spufs_srr0_get(void *data) | |
1741 | { | |
1742 | struct spu_context *ctx = data; | |
1743 | struct spu_lscsa *lscsa = ctx->csa.lscsa; | |
1744 | u64 ret; | |
1745 | spu_acquire_saved(ctx); | |
1746 | ret = lscsa->srr0.slot[0]; | |
1747 | spu_release(ctx); | |
1748 | return ret; | |
1749 | } | |
1750 | DEFINE_SIMPLE_ATTRIBUTE(spufs_srr0_ops, spufs_srr0_get, spufs_srr0_set, | |
9b5047e2 | 1751 | "0x%llx\n") |
8b3d6663 | 1752 | |
7b1a7014 AB |
1753 | static u64 spufs_id_get(void *data) |
1754 | { | |
1755 | struct spu_context *ctx = data; | |
1756 | u64 num; | |
1757 | ||
1758 | spu_acquire(ctx); | |
1759 | if (ctx->state == SPU_STATE_RUNNABLE) | |
1760 | num = ctx->spu->number; | |
1761 | else | |
1762 | num = (unsigned int)-1; | |
1763 | spu_release(ctx); | |
1764 | ||
1765 | return num; | |
1766 | } | |
e45d6634 | 1767 | DEFINE_SIMPLE_ATTRIBUTE(spufs_id_ops, spufs_id_get, NULL, "0x%llx\n") |
7b1a7014 | 1768 | |
bf1ab978 | 1769 | static u64 __spufs_object_id_get(void *data) |
86767277 AB |
1770 | { |
1771 | struct spu_context *ctx = data; | |
1772 | return ctx->object_id; | |
1773 | } | |
1774 | ||
bf1ab978 DGM |
1775 | static u64 spufs_object_id_get(void *data) |
1776 | { | |
1777 | /* FIXME: Should there really be no locking here? */ | |
1778 | return __spufs_object_id_get(data); | |
1779 | } | |
1780 | ||
86767277 AB |
1781 | static void spufs_object_id_set(void *data, u64 id) |
1782 | { | |
1783 | struct spu_context *ctx = data; | |
1784 | ctx->object_id = id; | |
1785 | } | |
1786 | ||
1787 | DEFINE_SIMPLE_ATTRIBUTE(spufs_object_id_ops, spufs_object_id_get, | |
1788 | spufs_object_id_set, "0x%llx\n"); | |
1789 | ||
bf1ab978 DGM |
1790 | static u64 __spufs_lslr_get(void *data) |
1791 | { | |
1792 | struct spu_context *ctx = data; | |
1793 | return ctx->csa.priv2.spu_lslr_RW; | |
1794 | } | |
1795 | ||
b9e3bd77 DGM |
1796 | static u64 spufs_lslr_get(void *data) |
1797 | { | |
1798 | struct spu_context *ctx = data; | |
1799 | u64 ret; | |
1800 | ||
1801 | spu_acquire_saved(ctx); | |
bf1ab978 | 1802 | ret = __spufs_lslr_get(data); |
b9e3bd77 DGM |
1803 | spu_release(ctx); |
1804 | ||
1805 | return ret; | |
1806 | } | |
1807 | DEFINE_SIMPLE_ATTRIBUTE(spufs_lslr_ops, spufs_lslr_get, NULL, "0x%llx\n") | |
1808 | ||
1809 | static int spufs_info_open(struct inode *inode, struct file *file) | |
1810 | { | |
1811 | struct spufs_inode_info *i = SPUFS_I(inode); | |
1812 | struct spu_context *ctx = i->i_ctx; | |
1813 | file->private_data = ctx; | |
1814 | return 0; | |
1815 | } | |
1816 | ||
cbe709c1 BH |
1817 | static int spufs_caps_show(struct seq_file *s, void *private) |
1818 | { | |
1819 | struct spu_context *ctx = s->private; | |
1820 | ||
1821 | if (!(ctx->flags & SPU_CREATE_NOSCHED)) | |
1822 | seq_puts(s, "sched\n"); | |
1823 | if (!(ctx->flags & SPU_CREATE_ISOLATE)) | |
1824 | seq_puts(s, "step\n"); | |
1825 | return 0; | |
1826 | } | |
1827 | ||
1828 | static int spufs_caps_open(struct inode *inode, struct file *file) | |
1829 | { | |
1830 | return single_open(file, spufs_caps_show, SPUFS_I(inode)->i_ctx); | |
1831 | } | |
1832 | ||
1833 | static const struct file_operations spufs_caps_fops = { | |
1834 | .open = spufs_caps_open, | |
1835 | .read = seq_read, | |
1836 | .llseek = seq_lseek, | |
1837 | .release = single_release, | |
1838 | }; | |
1839 | ||
bf1ab978 DGM |
1840 | static ssize_t __spufs_mbox_info_read(struct spu_context *ctx, |
1841 | char __user *buf, size_t len, loff_t *pos) | |
1842 | { | |
1843 | u32 mbox_stat; | |
1844 | u32 data; | |
1845 | ||
1846 | mbox_stat = ctx->csa.prob.mb_stat_R; | |
1847 | if (mbox_stat & 0x0000ff) { | |
1848 | data = ctx->csa.prob.pu_mb_R; | |
1849 | } | |
1850 | ||
1851 | return simple_read_from_buffer(buf, len, pos, &data, sizeof data); | |
1852 | } | |
1853 | ||
69a2f00c DGM |
1854 | static ssize_t spufs_mbox_info_read(struct file *file, char __user *buf, |
1855 | size_t len, loff_t *pos) | |
1856 | { | |
bf1ab978 | 1857 | int ret; |
69a2f00c | 1858 | struct spu_context *ctx = file->private_data; |
69a2f00c DGM |
1859 | |
1860 | if (!access_ok(VERIFY_WRITE, buf, len)) | |
1861 | return -EFAULT; | |
1862 | ||
1863 | spu_acquire_saved(ctx); | |
1864 | spin_lock(&ctx->csa.register_lock); | |
bf1ab978 | 1865 | ret = __spufs_mbox_info_read(ctx, buf, len, pos); |
69a2f00c DGM |
1866 | spin_unlock(&ctx->csa.register_lock); |
1867 | spu_release(ctx); | |
1868 | ||
bf1ab978 | 1869 | return ret; |
69a2f00c DGM |
1870 | } |
1871 | ||
5dfe4c96 | 1872 | static const struct file_operations spufs_mbox_info_fops = { |
69a2f00c DGM |
1873 | .open = spufs_info_open, |
1874 | .read = spufs_mbox_info_read, | |
1875 | .llseek = generic_file_llseek, | |
1876 | }; | |
1877 | ||
bf1ab978 DGM |
1878 | static ssize_t __spufs_ibox_info_read(struct spu_context *ctx, |
1879 | char __user *buf, size_t len, loff_t *pos) | |
1880 | { | |
1881 | u32 ibox_stat; | |
1882 | u32 data; | |
1883 | ||
1884 | ibox_stat = ctx->csa.prob.mb_stat_R; | |
1885 | if (ibox_stat & 0xff0000) { | |
1886 | data = ctx->csa.priv2.puint_mb_R; | |
1887 | } | |
1888 | ||
1889 | return simple_read_from_buffer(buf, len, pos, &data, sizeof data); | |
1890 | } | |
1891 | ||
69a2f00c DGM |
1892 | static ssize_t spufs_ibox_info_read(struct file *file, char __user *buf, |
1893 | size_t len, loff_t *pos) | |
1894 | { | |
1895 | struct spu_context *ctx = file->private_data; | |
bf1ab978 | 1896 | int ret; |
69a2f00c DGM |
1897 | |
1898 | if (!access_ok(VERIFY_WRITE, buf, len)) | |
1899 | return -EFAULT; | |
1900 | ||
1901 | spu_acquire_saved(ctx); | |
1902 | spin_lock(&ctx->csa.register_lock); | |
bf1ab978 | 1903 | ret = __spufs_ibox_info_read(ctx, buf, len, pos); |
69a2f00c DGM |
1904 | spin_unlock(&ctx->csa.register_lock); |
1905 | spu_release(ctx); | |
1906 | ||
bf1ab978 | 1907 | return ret; |
69a2f00c DGM |
1908 | } |
1909 | ||
5dfe4c96 | 1910 | static const struct file_operations spufs_ibox_info_fops = { |
69a2f00c DGM |
1911 | .open = spufs_info_open, |
1912 | .read = spufs_ibox_info_read, | |
1913 | .llseek = generic_file_llseek, | |
1914 | }; | |
1915 | ||
bf1ab978 DGM |
1916 | static ssize_t __spufs_wbox_info_read(struct spu_context *ctx, |
1917 | char __user *buf, size_t len, loff_t *pos) | |
69a2f00c | 1918 | { |
69a2f00c DGM |
1919 | int i, cnt; |
1920 | u32 data[4]; | |
1921 | u32 wbox_stat; | |
1922 | ||
bf1ab978 DGM |
1923 | wbox_stat = ctx->csa.prob.mb_stat_R; |
1924 | cnt = 4 - ((wbox_stat & 0x00ff00) >> 8); | |
1925 | for (i = 0; i < cnt; i++) { | |
1926 | data[i] = ctx->csa.spu_mailbox_data[i]; | |
1927 | } | |
1928 | ||
1929 | return simple_read_from_buffer(buf, len, pos, &data, | |
1930 | cnt * sizeof(u32)); | |
1931 | } | |
1932 | ||
1933 | static ssize_t spufs_wbox_info_read(struct file *file, char __user *buf, | |
1934 | size_t len, loff_t *pos) | |
1935 | { | |
1936 | struct spu_context *ctx = file->private_data; | |
1937 | int ret; | |
1938 | ||
69a2f00c DGM |
1939 | if (!access_ok(VERIFY_WRITE, buf, len)) |
1940 | return -EFAULT; | |
1941 | ||
1942 | spu_acquire_saved(ctx); | |
1943 | spin_lock(&ctx->csa.register_lock); | |
bf1ab978 | 1944 | ret = __spufs_wbox_info_read(ctx, buf, len, pos); |
69a2f00c DGM |
1945 | spin_unlock(&ctx->csa.register_lock); |
1946 | spu_release(ctx); | |
1947 | ||
bf1ab978 | 1948 | return ret; |
69a2f00c DGM |
1949 | } |
1950 | ||
5dfe4c96 | 1951 | static const struct file_operations spufs_wbox_info_fops = { |
69a2f00c DGM |
1952 | .open = spufs_info_open, |
1953 | .read = spufs_wbox_info_read, | |
1954 | .llseek = generic_file_llseek, | |
1955 | }; | |
1956 | ||
bf1ab978 DGM |
1957 | static ssize_t __spufs_dma_info_read(struct spu_context *ctx, |
1958 | char __user *buf, size_t len, loff_t *pos) | |
b9e3bd77 | 1959 | { |
b9e3bd77 DGM |
1960 | struct spu_dma_info info; |
1961 | struct mfc_cq_sr *qp, *spuqp; | |
1962 | int i; | |
1963 | ||
b9e3bd77 DGM |
1964 | info.dma_info_type = ctx->csa.priv2.spu_tag_status_query_RW; |
1965 | info.dma_info_mask = ctx->csa.lscsa->tag_mask.slot[0]; | |
1966 | info.dma_info_status = ctx->csa.spu_chnldata_RW[24]; | |
1967 | info.dma_info_stall_and_notify = ctx->csa.spu_chnldata_RW[25]; | |
1968 | info.dma_info_atomic_command_status = ctx->csa.spu_chnldata_RW[27]; | |
1969 | for (i = 0; i < 16; i++) { | |
1970 | qp = &info.dma_info_command_data[i]; | |
1971 | spuqp = &ctx->csa.priv2.spuq[i]; | |
1972 | ||
1973 | qp->mfc_cq_data0_RW = spuqp->mfc_cq_data0_RW; | |
1974 | qp->mfc_cq_data1_RW = spuqp->mfc_cq_data1_RW; | |
1975 | qp->mfc_cq_data2_RW = spuqp->mfc_cq_data2_RW; | |
1976 | qp->mfc_cq_data3_RW = spuqp->mfc_cq_data3_RW; | |
1977 | } | |
b9e3bd77 DGM |
1978 | |
1979 | return simple_read_from_buffer(buf, len, pos, &info, | |
1980 | sizeof info); | |
1981 | } | |
1982 | ||
bf1ab978 DGM |
1983 | static ssize_t spufs_dma_info_read(struct file *file, char __user *buf, |
1984 | size_t len, loff_t *pos) | |
1985 | { | |
1986 | struct spu_context *ctx = file->private_data; | |
1987 | int ret; | |
1988 | ||
1989 | if (!access_ok(VERIFY_WRITE, buf, len)) | |
1990 | return -EFAULT; | |
1991 | ||
1992 | spu_acquire_saved(ctx); | |
1993 | spin_lock(&ctx->csa.register_lock); | |
1994 | ret = __spufs_dma_info_read(ctx, buf, len, pos); | |
1995 | spin_unlock(&ctx->csa.register_lock); | |
1996 | spu_release(ctx); | |
1997 | ||
1998 | return ret; | |
1999 | } | |
2000 | ||
5dfe4c96 | 2001 | static const struct file_operations spufs_dma_info_fops = { |
b9e3bd77 DGM |
2002 | .open = spufs_info_open, |
2003 | .read = spufs_dma_info_read, | |
2004 | }; | |
2005 | ||
bf1ab978 DGM |
2006 | static ssize_t __spufs_proxydma_info_read(struct spu_context *ctx, |
2007 | char __user *buf, size_t len, loff_t *pos) | |
b9e3bd77 | 2008 | { |
b9e3bd77 | 2009 | struct spu_proxydma_info info; |
b9e3bd77 | 2010 | struct mfc_cq_sr *qp, *puqp; |
bf1ab978 | 2011 | int ret = sizeof info; |
b9e3bd77 DGM |
2012 | int i; |
2013 | ||
2014 | if (len < ret) | |
2015 | return -EINVAL; | |
2016 | ||
2017 | if (!access_ok(VERIFY_WRITE, buf, len)) | |
2018 | return -EFAULT; | |
2019 | ||
b9e3bd77 DGM |
2020 | info.proxydma_info_type = ctx->csa.prob.dma_querytype_RW; |
2021 | info.proxydma_info_mask = ctx->csa.prob.dma_querymask_RW; | |
2022 | info.proxydma_info_status = ctx->csa.prob.dma_tagstatus_R; | |
2023 | for (i = 0; i < 8; i++) { | |
2024 | qp = &info.proxydma_info_command_data[i]; | |
2025 | puqp = &ctx->csa.priv2.puq[i]; | |
2026 | ||
2027 | qp->mfc_cq_data0_RW = puqp->mfc_cq_data0_RW; | |
2028 | qp->mfc_cq_data1_RW = puqp->mfc_cq_data1_RW; | |
2029 | qp->mfc_cq_data2_RW = puqp->mfc_cq_data2_RW; | |
2030 | qp->mfc_cq_data3_RW = puqp->mfc_cq_data3_RW; | |
2031 | } | |
bf1ab978 DGM |
2032 | |
2033 | return simple_read_from_buffer(buf, len, pos, &info, | |
2034 | sizeof info); | |
2035 | } | |
2036 | ||
2037 | static ssize_t spufs_proxydma_info_read(struct file *file, char __user *buf, | |
2038 | size_t len, loff_t *pos) | |
2039 | { | |
2040 | struct spu_context *ctx = file->private_data; | |
2041 | int ret; | |
2042 | ||
2043 | spu_acquire_saved(ctx); | |
2044 | spin_lock(&ctx->csa.register_lock); | |
2045 | ret = __spufs_proxydma_info_read(ctx, buf, len, pos); | |
b9e3bd77 DGM |
2046 | spin_unlock(&ctx->csa.register_lock); |
2047 | spu_release(ctx); | |
2048 | ||
b9e3bd77 DGM |
2049 | return ret; |
2050 | } | |
2051 | ||
5dfe4c96 | 2052 | static const struct file_operations spufs_proxydma_info_fops = { |
b9e3bd77 DGM |
2053 | .open = spufs_info_open, |
2054 | .read = spufs_proxydma_info_read, | |
2055 | }; | |
2056 | ||
476273ad CH |
2057 | static int spufs_show_tid(struct seq_file *s, void *private) |
2058 | { | |
2059 | struct spu_context *ctx = s->private; | |
2060 | ||
2061 | seq_printf(s, "%d\n", ctx->tid); | |
2062 | return 0; | |
2063 | } | |
2064 | ||
2065 | static int spufs_tid_open(struct inode *inode, struct file *file) | |
2066 | { | |
2067 | return single_open(file, spufs_show_tid, SPUFS_I(inode)->i_ctx); | |
2068 | } | |
2069 | ||
2070 | static const struct file_operations spufs_tid_fops = { | |
2071 | .open = spufs_tid_open, | |
2072 | .read = seq_read, | |
2073 | .llseek = seq_lseek, | |
2074 | .release = single_release, | |
2075 | }; | |
2076 | ||
e9f8a0b6 CH |
2077 | static const char *ctx_state_names[] = { |
2078 | "user", "system", "iowait", "loaded" | |
2079 | }; | |
2080 | ||
2081 | static unsigned long long spufs_acct_time(struct spu_context *ctx, | |
2082 | enum spuctx_execution_state state) | |
2083 | { | |
2084 | unsigned long time = ctx->stats.times[state]; | |
2085 | ||
2086 | if (ctx->stats.execution_state == state) | |
2087 | time += jiffies - ctx->stats.tstamp; | |
2088 | ||
2089 | return jiffies_to_msecs(time); | |
2090 | } | |
2091 | ||
2092 | static unsigned long long spufs_slb_flts(struct spu_context *ctx) | |
2093 | { | |
2094 | unsigned long long slb_flts = ctx->stats.slb_flt; | |
2095 | ||
2096 | if (ctx->state == SPU_STATE_RUNNABLE) { | |
2097 | slb_flts += (ctx->spu->stats.slb_flt - | |
2098 | ctx->stats.slb_flt_base); | |
2099 | } | |
2100 | ||
2101 | return slb_flts; | |
2102 | } | |
2103 | ||
2104 | static unsigned long long spufs_class2_intrs(struct spu_context *ctx) | |
2105 | { | |
2106 | unsigned long long class2_intrs = ctx->stats.class2_intr; | |
2107 | ||
2108 | if (ctx->state == SPU_STATE_RUNNABLE) { | |
2109 | class2_intrs += (ctx->spu->stats.class2_intr - | |
2110 | ctx->stats.class2_intr_base); | |
2111 | } | |
2112 | ||
2113 | return class2_intrs; | |
2114 | } | |
2115 | ||
2116 | ||
2117 | static int spufs_show_stat(struct seq_file *s, void *private) | |
2118 | { | |
2119 | struct spu_context *ctx = s->private; | |
2120 | ||
2121 | spu_acquire(ctx); | |
2122 | seq_printf(s, "%s %llu %llu %llu %llu " | |
2123 | "%llu %llu %llu %llu %llu %llu %llu %llu\n", | |
2124 | ctx_state_names[ctx->stats.execution_state], | |
2125 | spufs_acct_time(ctx, SPUCTX_UTIL_USER), | |
2126 | spufs_acct_time(ctx, SPUCTX_UTIL_SYSTEM), | |
2127 | spufs_acct_time(ctx, SPUCTX_UTIL_IOWAIT), | |
2128 | spufs_acct_time(ctx, SPUCTX_UTIL_LOADED), | |
2129 | ctx->stats.vol_ctx_switch, | |
2130 | ctx->stats.invol_ctx_switch, | |
2131 | spufs_slb_flts(ctx), | |
2132 | ctx->stats.hash_flt, | |
2133 | ctx->stats.min_flt, | |
2134 | ctx->stats.maj_flt, | |
2135 | spufs_class2_intrs(ctx), | |
2136 | ctx->stats.libassist); | |
2137 | spu_release(ctx); | |
2138 | return 0; | |
2139 | } | |
2140 | ||
2141 | static int spufs_stat_open(struct inode *inode, struct file *file) | |
2142 | { | |
2143 | return single_open(file, spufs_show_stat, SPUFS_I(inode)->i_ctx); | |
2144 | } | |
2145 | ||
2146 | static const struct file_operations spufs_stat_fops = { | |
2147 | .open = spufs_stat_open, | |
2148 | .read = seq_read, | |
2149 | .llseek = seq_lseek, | |
2150 | .release = single_release, | |
2151 | }; | |
2152 | ||
2153 | ||
67207b96 | 2154 | struct tree_descr spufs_dir_contents[] = { |
cbe709c1 | 2155 | { "capabilities", &spufs_caps_fops, 0444, }, |
67207b96 | 2156 | { "mem", &spufs_mem_fops, 0666, }, |
8b3d6663 | 2157 | { "regs", &spufs_regs_fops, 0666, }, |
67207b96 AB |
2158 | { "mbox", &spufs_mbox_fops, 0444, }, |
2159 | { "ibox", &spufs_ibox_fops, 0444, }, | |
2160 | { "wbox", &spufs_wbox_fops, 0222, }, | |
2161 | { "mbox_stat", &spufs_mbox_stat_fops, 0444, }, | |
2162 | { "ibox_stat", &spufs_ibox_stat_fops, 0444, }, | |
2163 | { "wbox_stat", &spufs_wbox_stat_fops, 0444, }, | |
2164 | { "signal1", &spufs_signal1_fops, 0666, }, | |
2165 | { "signal2", &spufs_signal2_fops, 0666, }, | |
2166 | { "signal1_type", &spufs_signal1_type, 0666, }, | |
2167 | { "signal2_type", &spufs_signal2_type, 0666, }, | |
6df10a82 | 2168 | { "cntl", &spufs_cntl_fops, 0666, }, |
8b3d6663 | 2169 | { "fpcr", &spufs_fpcr_fops, 0666, }, |
b9e3bd77 DGM |
2170 | { "lslr", &spufs_lslr_ops, 0444, }, |
2171 | { "mfc", &spufs_mfc_fops, 0666, }, | |
2172 | { "mss", &spufs_mss_fops, 0666, }, | |
2173 | { "npc", &spufs_npc_ops, 0666, }, | |
2174 | { "srr0", &spufs_srr0_ops, 0666, }, | |
8b3d6663 AB |
2175 | { "decr", &spufs_decr_ops, 0666, }, |
2176 | { "decr_status", &spufs_decr_status_ops, 0666, }, | |
8b3d6663 | 2177 | { "event_mask", &spufs_event_mask_ops, 0666, }, |
b9e3bd77 | 2178 | { "event_status", &spufs_event_status_ops, 0444, }, |
27d5bf2a | 2179 | { "psmap", &spufs_psmap_fops, 0666, }, |
86767277 AB |
2180 | { "phys-id", &spufs_id_ops, 0666, }, |
2181 | { "object-id", &spufs_object_id_ops, 0666, }, | |
69a2f00c DGM |
2182 | { "mbox_info", &spufs_mbox_info_fops, 0444, }, |
2183 | { "ibox_info", &spufs_ibox_info_fops, 0444, }, | |
2184 | { "wbox_info", &spufs_wbox_info_fops, 0444, }, | |
b9e3bd77 DGM |
2185 | { "dma_info", &spufs_dma_info_fops, 0444, }, |
2186 | { "proxydma_info", &spufs_proxydma_info_fops, 0444, }, | |
476273ad | 2187 | { "tid", &spufs_tid_fops, 0444, }, |
e9f8a0b6 | 2188 | { "stat", &spufs_stat_fops, 0444, }, |
67207b96 AB |
2189 | {}, |
2190 | }; | |
5737edd1 MN |
2191 | |
2192 | struct tree_descr spufs_dir_nosched_contents[] = { | |
cbe709c1 | 2193 | { "capabilities", &spufs_caps_fops, 0444, }, |
5737edd1 MN |
2194 | { "mem", &spufs_mem_fops, 0666, }, |
2195 | { "mbox", &spufs_mbox_fops, 0444, }, | |
2196 | { "ibox", &spufs_ibox_fops, 0444, }, | |
2197 | { "wbox", &spufs_wbox_fops, 0222, }, | |
2198 | { "mbox_stat", &spufs_mbox_stat_fops, 0444, }, | |
2199 | { "ibox_stat", &spufs_ibox_stat_fops, 0444, }, | |
2200 | { "wbox_stat", &spufs_wbox_stat_fops, 0444, }, | |
d054b36f JK |
2201 | { "signal1", &spufs_signal1_nosched_fops, 0222, }, |
2202 | { "signal2", &spufs_signal2_nosched_fops, 0222, }, | |
5737edd1 MN |
2203 | { "signal1_type", &spufs_signal1_type, 0666, }, |
2204 | { "signal2_type", &spufs_signal2_type, 0666, }, | |
2205 | { "mss", &spufs_mss_fops, 0666, }, | |
2206 | { "mfc", &spufs_mfc_fops, 0666, }, | |
2207 | { "cntl", &spufs_cntl_fops, 0666, }, | |
2208 | { "npc", &spufs_npc_ops, 0666, }, | |
2209 | { "psmap", &spufs_psmap_fops, 0666, }, | |
2210 | { "phys-id", &spufs_id_ops, 0666, }, | |
2211 | { "object-id", &spufs_object_id_ops, 0666, }, | |
476273ad | 2212 | { "tid", &spufs_tid_fops, 0444, }, |
e9f8a0b6 | 2213 | { "stat", &spufs_stat_fops, 0444, }, |
5737edd1 MN |
2214 | {}, |
2215 | }; | |
bf1ab978 DGM |
2216 | |
2217 | struct spufs_coredump_reader spufs_coredump_read[] = { | |
2218 | { "regs", __spufs_regs_read, NULL, 128 * 16 }, | |
2219 | { "fpcr", __spufs_fpcr_read, NULL, 16 }, | |
2220 | { "lslr", NULL, __spufs_lslr_get, 11 }, | |
2221 | { "decr", NULL, __spufs_decr_get, 11 }, | |
2222 | { "decr_status", NULL, __spufs_decr_status_get, 11 }, | |
2223 | { "mem", __spufs_mem_read, NULL, 256 * 1024, }, | |
2224 | { "signal1", __spufs_signal1_read, NULL, 4 }, | |
2225 | { "signal1_type", NULL, __spufs_signal1_type_get, 2 }, | |
2226 | { "signal2", __spufs_signal2_read, NULL, 4 }, | |
2227 | { "signal2_type", NULL, __spufs_signal2_type_get, 2 }, | |
2228 | { "event_mask", NULL, __spufs_event_mask_get, 8 }, | |
2229 | { "event_status", NULL, __spufs_event_status_get, 8 }, | |
2230 | { "mbox_info", __spufs_mbox_info_read, NULL, 4 }, | |
2231 | { "ibox_info", __spufs_ibox_info_read, NULL, 4 }, | |
2232 | { "wbox_info", __spufs_wbox_info_read, NULL, 16 }, | |
2233 | { "dma_info", __spufs_dma_info_read, NULL, 69 * 8 }, | |
2234 | { "proxydma_info", __spufs_proxydma_info_read, NULL, 35 * 8 }, | |
2235 | { "object-id", NULL, __spufs_object_id_get, 19 }, | |
2236 | { }, | |
2237 | }; | |
2238 | int spufs_coredump_num_notes = ARRAY_SIZE(spufs_coredump_read) - 1; | |
2239 |