2 * SPU file system -- file contents
4 * (C) Copyright IBM Deutschland Entwicklung GmbH 2005
6 * Author: Arnd Bergmann <arndb@de.ibm.com>
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)
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.
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.
26 #include <linux/ioctl.h>
27 #include <linux/export.h>
28 #include <linux/pagemap.h>
29 #include <linux/poll.h>
30 #include <linux/ptrace.h>
31 #include <linux/seq_file.h>
32 #include <linux/slab.h>
37 #include <asm/spu_info.h>
38 #include <asm/uaccess.h>
43 #define SPUFS_MMAP_4K (PAGE_SIZE == 0x1000)
45 /* Simple attribute files */
47 int (*get)(void *, u64 *);
48 int (*set)(void *, u64);
49 char get_buf[24]; /* enough to store a u64 and "\n\0" */
52 const char *fmt; /* format for read operation */
53 struct mutex mutex; /* protects access to these buffers */
56 static int spufs_attr_open(struct inode *inode, struct file *file,
57 int (*get)(void *, u64 *), int (*set)(void *, u64),
60 struct spufs_attr *attr;
62 attr = kmalloc(sizeof(*attr), GFP_KERNEL);
68 attr->data = inode->i_private;
70 mutex_init(&attr->mutex);
71 file->private_data = attr;
73 return nonseekable_open(inode, file);
76 static int spufs_attr_release(struct inode *inode, struct file *file)
78 kfree(file->private_data);
82 static ssize_t spufs_attr_read(struct file *file, char __user *buf,
83 size_t len, loff_t *ppos)
85 struct spufs_attr *attr;
89 attr = file->private_data;
93 ret = mutex_lock_interruptible(&attr->mutex);
97 if (*ppos) { /* continued read */
98 size = strlen(attr->get_buf);
99 } else { /* first read */
101 ret = attr->get(attr->data, &val);
105 size = scnprintf(attr->get_buf, sizeof(attr->get_buf),
106 attr->fmt, (unsigned long long)val);
109 ret = simple_read_from_buffer(buf, len, ppos, attr->get_buf, size);
111 mutex_unlock(&attr->mutex);
115 static ssize_t spufs_attr_write(struct file *file, const char __user *buf,
116 size_t len, loff_t *ppos)
118 struct spufs_attr *attr;
123 attr = file->private_data;
127 ret = mutex_lock_interruptible(&attr->mutex);
132 size = min(sizeof(attr->set_buf) - 1, len);
133 if (copy_from_user(attr->set_buf, buf, size))
136 ret = len; /* claim we got the whole input */
137 attr->set_buf[size] = '\0';
138 val = simple_strtol(attr->set_buf, NULL, 0);
139 attr->set(attr->data, val);
141 mutex_unlock(&attr->mutex);
145 #define DEFINE_SPUFS_SIMPLE_ATTRIBUTE(__fops, __get, __set, __fmt) \
146 static int __fops ## _open(struct inode *inode, struct file *file) \
148 __simple_attr_check_format(__fmt, 0ull); \
149 return spufs_attr_open(inode, file, __get, __set, __fmt); \
151 static const struct file_operations __fops = { \
152 .open = __fops ## _open, \
153 .release = spufs_attr_release, \
154 .read = spufs_attr_read, \
155 .write = spufs_attr_write, \
156 .llseek = generic_file_llseek, \
161 spufs_mem_open(struct inode *inode, struct file *file)
163 struct spufs_inode_info *i = SPUFS_I(inode);
164 struct spu_context *ctx = i->i_ctx;
166 mutex_lock(&ctx->mapping_lock);
167 file->private_data = ctx;
169 ctx->local_store = inode->i_mapping;
170 mutex_unlock(&ctx->mapping_lock);
175 spufs_mem_release(struct inode *inode, struct file *file)
177 struct spufs_inode_info *i = SPUFS_I(inode);
178 struct spu_context *ctx = i->i_ctx;
180 mutex_lock(&ctx->mapping_lock);
182 ctx->local_store = NULL;
183 mutex_unlock(&ctx->mapping_lock);
188 __spufs_mem_read(struct spu_context *ctx, char __user *buffer,
189 size_t size, loff_t *pos)
191 char *local_store = ctx->ops->get_ls(ctx);
192 return simple_read_from_buffer(buffer, size, pos, local_store,
197 spufs_mem_read(struct file *file, char __user *buffer,
198 size_t size, loff_t *pos)
200 struct spu_context *ctx = file->private_data;
203 ret = spu_acquire(ctx);
206 ret = __spufs_mem_read(ctx, buffer, size, pos);
213 spufs_mem_write(struct file *file, const char __user *buffer,
214 size_t size, loff_t *ppos)
216 struct spu_context *ctx = file->private_data;
224 ret = spu_acquire(ctx);
228 local_store = ctx->ops->get_ls(ctx);
229 size = simple_write_to_buffer(local_store, LS_SIZE, ppos, buffer, size);
236 spufs_mem_mmap_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
238 struct spu_context *ctx = vma->vm_file->private_data;
239 unsigned long address = (unsigned long)vmf->virtual_address;
240 unsigned long pfn, offset;
242 #ifdef CONFIG_SPU_FS_64K_LS
243 struct spu_state *csa = &ctx->csa;
246 /* Check what page size we are using */
247 psize = get_slice_psize(vma->vm_mm, address);
249 /* Some sanity checking */
250 BUG_ON(csa->use_big_pages != (psize == MMU_PAGE_64K));
252 /* Wow, 64K, cool, we need to align the address though */
253 if (csa->use_big_pages) {
254 BUG_ON(vma->vm_start & 0xffff);
255 address &= ~0xfffful;
257 #endif /* CONFIG_SPU_FS_64K_LS */
259 offset = vmf->pgoff << PAGE_SHIFT;
260 if (offset >= LS_SIZE)
261 return VM_FAULT_SIGBUS;
263 pr_debug("spufs_mem_mmap_fault address=0x%lx, offset=0x%lx\n",
266 if (spu_acquire(ctx))
267 return VM_FAULT_NOPAGE;
269 if (ctx->state == SPU_STATE_SAVED) {
270 vma->vm_page_prot = pgprot_cached(vma->vm_page_prot);
271 pfn = vmalloc_to_pfn(ctx->csa.lscsa->ls + offset);
273 vma->vm_page_prot = pgprot_noncached_wc(vma->vm_page_prot);
274 pfn = (ctx->spu->local_store_phys + offset) >> PAGE_SHIFT;
276 vm_insert_pfn(vma, address, pfn);
280 return VM_FAULT_NOPAGE;
283 static int spufs_mem_mmap_access(struct vm_area_struct *vma,
284 unsigned long address,
285 void *buf, int len, int write)
287 struct spu_context *ctx = vma->vm_file->private_data;
288 unsigned long offset = address - vma->vm_start;
291 if (write && !(vma->vm_flags & VM_WRITE))
293 if (spu_acquire(ctx))
295 if ((offset + len) > vma->vm_end)
296 len = vma->vm_end - offset;
297 local_store = ctx->ops->get_ls(ctx);
299 memcpy_toio(local_store + offset, buf, len);
301 memcpy_fromio(buf, local_store + offset, len);
306 static const struct vm_operations_struct spufs_mem_mmap_vmops = {
307 .fault = spufs_mem_mmap_fault,
308 .access = spufs_mem_mmap_access,
311 static int spufs_mem_mmap(struct file *file, struct vm_area_struct *vma)
313 #ifdef CONFIG_SPU_FS_64K_LS
314 struct spu_context *ctx = file->private_data;
315 struct spu_state *csa = &ctx->csa;
317 /* Sanity check VMA alignment */
318 if (csa->use_big_pages) {
319 pr_debug("spufs_mem_mmap 64K, start=0x%lx, end=0x%lx,"
320 " pgoff=0x%lx\n", vma->vm_start, vma->vm_end,
322 if (vma->vm_start & 0xffff)
324 if (vma->vm_pgoff & 0xf)
327 #endif /* CONFIG_SPU_FS_64K_LS */
329 if (!(vma->vm_flags & VM_SHARED))
332 vma->vm_flags |= VM_IO | VM_PFNMAP;
333 vma->vm_page_prot = pgprot_noncached_wc(vma->vm_page_prot);
335 vma->vm_ops = &spufs_mem_mmap_vmops;
339 #ifdef CONFIG_SPU_FS_64K_LS
340 static unsigned long spufs_get_unmapped_area(struct file *file,
341 unsigned long addr, unsigned long len, unsigned long pgoff,
344 struct spu_context *ctx = file->private_data;
345 struct spu_state *csa = &ctx->csa;
347 /* If not using big pages, fallback to normal MM g_u_a */
348 if (!csa->use_big_pages)
349 return current->mm->get_unmapped_area(file, addr, len,
352 /* Else, try to obtain a 64K pages slice */
353 return slice_get_unmapped_area(addr, len, flags,
356 #endif /* CONFIG_SPU_FS_64K_LS */
358 static const struct file_operations spufs_mem_fops = {
359 .open = spufs_mem_open,
360 .release = spufs_mem_release,
361 .read = spufs_mem_read,
362 .write = spufs_mem_write,
363 .llseek = generic_file_llseek,
364 .mmap = spufs_mem_mmap,
365 #ifdef CONFIG_SPU_FS_64K_LS
366 .get_unmapped_area = spufs_get_unmapped_area,
370 static int spufs_ps_fault(struct vm_area_struct *vma,
371 struct vm_fault *vmf,
372 unsigned long ps_offs,
373 unsigned long ps_size)
375 struct spu_context *ctx = vma->vm_file->private_data;
376 unsigned long area, offset = vmf->pgoff << PAGE_SHIFT;
379 spu_context_nospu_trace(spufs_ps_fault__enter, ctx);
381 if (offset >= ps_size)
382 return VM_FAULT_SIGBUS;
384 if (fatal_signal_pending(current))
385 return VM_FAULT_SIGBUS;
388 * Because we release the mmap_sem, the context may be destroyed while
389 * we're in spu_wait. Grab an extra reference so it isn't destroyed
392 get_spu_context(ctx);
395 * We have to wait for context to be loaded before we have
396 * pages to hand out to the user, but we don't want to wait
397 * with the mmap_sem held.
398 * It is possible to drop the mmap_sem here, but then we need
399 * to return VM_FAULT_NOPAGE because the mappings may have
402 if (spu_acquire(ctx))
405 if (ctx->state == SPU_STATE_SAVED) {
406 up_read(¤t->mm->mmap_sem);
407 spu_context_nospu_trace(spufs_ps_fault__sleep, ctx);
408 ret = spufs_wait(ctx->run_wq, ctx->state == SPU_STATE_RUNNABLE);
409 spu_context_trace(spufs_ps_fault__wake, ctx, ctx->spu);
410 down_read(¤t->mm->mmap_sem);
412 area = ctx->spu->problem_phys + ps_offs;
413 vm_insert_pfn(vma, (unsigned long)vmf->virtual_address,
414 (area + offset) >> PAGE_SHIFT);
415 spu_context_trace(spufs_ps_fault__insert, ctx, ctx->spu);
422 put_spu_context(ctx);
423 return VM_FAULT_NOPAGE;
427 static int spufs_cntl_mmap_fault(struct vm_area_struct *vma,
428 struct vm_fault *vmf)
430 return spufs_ps_fault(vma, vmf, 0x4000, SPUFS_CNTL_MAP_SIZE);
433 static const struct vm_operations_struct spufs_cntl_mmap_vmops = {
434 .fault = spufs_cntl_mmap_fault,
438 * mmap support for problem state control area [0x4000 - 0x4fff].
440 static int spufs_cntl_mmap(struct file *file, struct vm_area_struct *vma)
442 if (!(vma->vm_flags & VM_SHARED))
445 vma->vm_flags |= VM_IO | VM_PFNMAP;
446 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
448 vma->vm_ops = &spufs_cntl_mmap_vmops;
451 #else /* SPUFS_MMAP_4K */
452 #define spufs_cntl_mmap NULL
453 #endif /* !SPUFS_MMAP_4K */
455 static int spufs_cntl_get(void *data, u64 *val)
457 struct spu_context *ctx = data;
460 ret = spu_acquire(ctx);
463 *val = ctx->ops->status_read(ctx);
469 static int spufs_cntl_set(void *data, u64 val)
471 struct spu_context *ctx = data;
474 ret = spu_acquire(ctx);
477 ctx->ops->runcntl_write(ctx, val);
483 static int spufs_cntl_open(struct inode *inode, struct file *file)
485 struct spufs_inode_info *i = SPUFS_I(inode);
486 struct spu_context *ctx = i->i_ctx;
488 mutex_lock(&ctx->mapping_lock);
489 file->private_data = ctx;
491 ctx->cntl = inode->i_mapping;
492 mutex_unlock(&ctx->mapping_lock);
493 return simple_attr_open(inode, file, spufs_cntl_get,
494 spufs_cntl_set, "0x%08lx");
498 spufs_cntl_release(struct inode *inode, struct file *file)
500 struct spufs_inode_info *i = SPUFS_I(inode);
501 struct spu_context *ctx = i->i_ctx;
503 simple_attr_release(inode, file);
505 mutex_lock(&ctx->mapping_lock);
508 mutex_unlock(&ctx->mapping_lock);
512 static const struct file_operations spufs_cntl_fops = {
513 .open = spufs_cntl_open,
514 .release = spufs_cntl_release,
515 .read = simple_attr_read,
516 .write = simple_attr_write,
517 .llseek = generic_file_llseek,
518 .mmap = spufs_cntl_mmap,
522 spufs_regs_open(struct inode *inode, struct file *file)
524 struct spufs_inode_info *i = SPUFS_I(inode);
525 file->private_data = i->i_ctx;
530 __spufs_regs_read(struct spu_context *ctx, char __user *buffer,
531 size_t size, loff_t *pos)
533 struct spu_lscsa *lscsa = ctx->csa.lscsa;
534 return simple_read_from_buffer(buffer, size, pos,
535 lscsa->gprs, sizeof lscsa->gprs);
539 spufs_regs_read(struct file *file, char __user *buffer,
540 size_t size, loff_t *pos)
543 struct spu_context *ctx = file->private_data;
545 /* pre-check for file position: if we'd return EOF, there's no point
546 * causing a deschedule */
547 if (*pos >= sizeof(ctx->csa.lscsa->gprs))
550 ret = spu_acquire_saved(ctx);
553 ret = __spufs_regs_read(ctx, buffer, size, pos);
554 spu_release_saved(ctx);
559 spufs_regs_write(struct file *file, const char __user *buffer,
560 size_t size, loff_t *pos)
562 struct spu_context *ctx = file->private_data;
563 struct spu_lscsa *lscsa = ctx->csa.lscsa;
566 if (*pos >= sizeof(lscsa->gprs))
569 ret = spu_acquire_saved(ctx);
573 size = simple_write_to_buffer(lscsa->gprs, sizeof(lscsa->gprs), pos,
576 spu_release_saved(ctx);
580 static const struct file_operations spufs_regs_fops = {
581 .open = spufs_regs_open,
582 .read = spufs_regs_read,
583 .write = spufs_regs_write,
584 .llseek = generic_file_llseek,
588 __spufs_fpcr_read(struct spu_context *ctx, char __user * buffer,
589 size_t size, loff_t * pos)
591 struct spu_lscsa *lscsa = ctx->csa.lscsa;
592 return simple_read_from_buffer(buffer, size, pos,
593 &lscsa->fpcr, sizeof(lscsa->fpcr));
597 spufs_fpcr_read(struct file *file, char __user * buffer,
598 size_t size, loff_t * pos)
601 struct spu_context *ctx = file->private_data;
603 ret = spu_acquire_saved(ctx);
606 ret = __spufs_fpcr_read(ctx, buffer, size, pos);
607 spu_release_saved(ctx);
612 spufs_fpcr_write(struct file *file, const char __user * buffer,
613 size_t size, loff_t * pos)
615 struct spu_context *ctx = file->private_data;
616 struct spu_lscsa *lscsa = ctx->csa.lscsa;
619 if (*pos >= sizeof(lscsa->fpcr))
622 ret = spu_acquire_saved(ctx);
626 size = simple_write_to_buffer(&lscsa->fpcr, sizeof(lscsa->fpcr), pos,
629 spu_release_saved(ctx);
633 static const struct file_operations spufs_fpcr_fops = {
634 .open = spufs_regs_open,
635 .read = spufs_fpcr_read,
636 .write = spufs_fpcr_write,
637 .llseek = generic_file_llseek,
640 /* generic open function for all pipe-like files */
641 static int spufs_pipe_open(struct inode *inode, struct file *file)
643 struct spufs_inode_info *i = SPUFS_I(inode);
644 file->private_data = i->i_ctx;
646 return nonseekable_open(inode, file);
650 * Read as many bytes from the mailbox as possible, until
651 * one of the conditions becomes true:
653 * - no more data available in the mailbox
654 * - end of the user provided buffer
655 * - end of the mapped area
657 static ssize_t spufs_mbox_read(struct file *file, char __user *buf,
658 size_t len, loff_t *pos)
660 struct spu_context *ctx = file->private_data;
661 u32 mbox_data, __user *udata;
667 if (!access_ok(VERIFY_WRITE, buf, len))
670 udata = (void __user *)buf;
672 count = spu_acquire(ctx);
676 for (count = 0; (count + 4) <= len; count += 4, udata++) {
678 ret = ctx->ops->mbox_read(ctx, &mbox_data);
683 * at the end of the mapped area, we can fault
684 * but still need to return the data we have
685 * read successfully so far.
687 ret = __put_user(mbox_data, udata);
702 static const struct file_operations spufs_mbox_fops = {
703 .open = spufs_pipe_open,
704 .read = spufs_mbox_read,
708 static ssize_t spufs_mbox_stat_read(struct file *file, char __user *buf,
709 size_t len, loff_t *pos)
711 struct spu_context *ctx = file->private_data;
718 ret = spu_acquire(ctx);
722 mbox_stat = ctx->ops->mbox_stat_read(ctx) & 0xff;
726 if (copy_to_user(buf, &mbox_stat, sizeof mbox_stat))
732 static const struct file_operations spufs_mbox_stat_fops = {
733 .open = spufs_pipe_open,
734 .read = spufs_mbox_stat_read,
738 /* low-level ibox access function */
739 size_t spu_ibox_read(struct spu_context *ctx, u32 *data)
741 return ctx->ops->ibox_read(ctx, data);
744 static int spufs_ibox_fasync(int fd, struct file *file, int on)
746 struct spu_context *ctx = file->private_data;
748 return fasync_helper(fd, file, on, &ctx->ibox_fasync);
751 /* interrupt-level ibox callback function. */
752 void spufs_ibox_callback(struct spu *spu)
754 struct spu_context *ctx = spu->ctx;
759 wake_up_all(&ctx->ibox_wq);
760 kill_fasync(&ctx->ibox_fasync, SIGIO, POLLIN);
764 * Read as many bytes from the interrupt mailbox as possible, until
765 * one of the conditions becomes true:
767 * - no more data available in the mailbox
768 * - end of the user provided buffer
769 * - end of the mapped area
771 * If the file is opened without O_NONBLOCK, we wait here until
772 * any data is available, but return when we have been able to
775 static ssize_t spufs_ibox_read(struct file *file, char __user *buf,
776 size_t len, loff_t *pos)
778 struct spu_context *ctx = file->private_data;
779 u32 ibox_data, __user *udata;
785 if (!access_ok(VERIFY_WRITE, buf, len))
788 udata = (void __user *)buf;
790 count = spu_acquire(ctx);
794 /* wait only for the first element */
796 if (file->f_flags & O_NONBLOCK) {
797 if (!spu_ibox_read(ctx, &ibox_data)) {
802 count = spufs_wait(ctx->ibox_wq, spu_ibox_read(ctx, &ibox_data));
807 /* if we can't write at all, return -EFAULT */
808 count = __put_user(ibox_data, udata);
812 for (count = 4, udata++; (count + 4) <= len; count += 4, udata++) {
814 ret = ctx->ops->ibox_read(ctx, &ibox_data);
818 * at the end of the mapped area, we can fault
819 * but still need to return the data we have
820 * read successfully so far.
822 ret = __put_user(ibox_data, udata);
833 static unsigned int spufs_ibox_poll(struct file *file, poll_table *wait)
835 struct spu_context *ctx = file->private_data;
838 poll_wait(file, &ctx->ibox_wq, wait);
841 * For now keep this uninterruptible and also ignore the rule
842 * that poll should not sleep. Will be fixed later.
844 mutex_lock(&ctx->state_mutex);
845 mask = ctx->ops->mbox_stat_poll(ctx, POLLIN | POLLRDNORM);
851 static const struct file_operations spufs_ibox_fops = {
852 .open = spufs_pipe_open,
853 .read = spufs_ibox_read,
854 .poll = spufs_ibox_poll,
855 .fasync = spufs_ibox_fasync,
859 static ssize_t spufs_ibox_stat_read(struct file *file, char __user *buf,
860 size_t len, loff_t *pos)
862 struct spu_context *ctx = file->private_data;
869 ret = spu_acquire(ctx);
872 ibox_stat = (ctx->ops->mbox_stat_read(ctx) >> 16) & 0xff;
875 if (copy_to_user(buf, &ibox_stat, sizeof ibox_stat))
881 static const struct file_operations spufs_ibox_stat_fops = {
882 .open = spufs_pipe_open,
883 .read = spufs_ibox_stat_read,
887 /* low-level mailbox write */
888 size_t spu_wbox_write(struct spu_context *ctx, u32 data)
890 return ctx->ops->wbox_write(ctx, data);
893 static int spufs_wbox_fasync(int fd, struct file *file, int on)
895 struct spu_context *ctx = file->private_data;
898 ret = fasync_helper(fd, file, on, &ctx->wbox_fasync);
903 /* interrupt-level wbox callback function. */
904 void spufs_wbox_callback(struct spu *spu)
906 struct spu_context *ctx = spu->ctx;
911 wake_up_all(&ctx->wbox_wq);
912 kill_fasync(&ctx->wbox_fasync, SIGIO, POLLOUT);
916 * Write as many bytes to the interrupt mailbox as possible, until
917 * one of the conditions becomes true:
919 * - the mailbox is full
920 * - end of the user provided buffer
921 * - end of the mapped area
923 * If the file is opened without O_NONBLOCK, we wait here until
924 * space is availabyl, but return when we have been able to
927 static ssize_t spufs_wbox_write(struct file *file, const char __user *buf,
928 size_t len, loff_t *pos)
930 struct spu_context *ctx = file->private_data;
931 u32 wbox_data, __user *udata;
937 udata = (void __user *)buf;
938 if (!access_ok(VERIFY_READ, buf, len))
941 if (__get_user(wbox_data, udata))
944 count = spu_acquire(ctx);
949 * make sure we can at least write one element, by waiting
950 * in case of !O_NONBLOCK
953 if (file->f_flags & O_NONBLOCK) {
954 if (!spu_wbox_write(ctx, wbox_data)) {
959 count = spufs_wait(ctx->wbox_wq, spu_wbox_write(ctx, wbox_data));
965 /* write as much as possible */
966 for (count = 4, udata++; (count + 4) <= len; count += 4, udata++) {
968 ret = __get_user(wbox_data, udata);
972 ret = spu_wbox_write(ctx, wbox_data);
983 static unsigned int spufs_wbox_poll(struct file *file, poll_table *wait)
985 struct spu_context *ctx = file->private_data;
988 poll_wait(file, &ctx->wbox_wq, wait);
991 * For now keep this uninterruptible and also ignore the rule
992 * that poll should not sleep. Will be fixed later.
994 mutex_lock(&ctx->state_mutex);
995 mask = ctx->ops->mbox_stat_poll(ctx, POLLOUT | POLLWRNORM);
1001 static const struct file_operations spufs_wbox_fops = {
1002 .open = spufs_pipe_open,
1003 .write = spufs_wbox_write,
1004 .poll = spufs_wbox_poll,
1005 .fasync = spufs_wbox_fasync,
1006 .llseek = no_llseek,
1009 static ssize_t spufs_wbox_stat_read(struct file *file, char __user *buf,
1010 size_t len, loff_t *pos)
1012 struct spu_context *ctx = file->private_data;
1019 ret = spu_acquire(ctx);
1022 wbox_stat = (ctx->ops->mbox_stat_read(ctx) >> 8) & 0xff;
1025 if (copy_to_user(buf, &wbox_stat, sizeof wbox_stat))
1031 static const struct file_operations spufs_wbox_stat_fops = {
1032 .open = spufs_pipe_open,
1033 .read = spufs_wbox_stat_read,
1034 .llseek = no_llseek,
1037 static int spufs_signal1_open(struct inode *inode, struct file *file)
1039 struct spufs_inode_info *i = SPUFS_I(inode);
1040 struct spu_context *ctx = i->i_ctx;
1042 mutex_lock(&ctx->mapping_lock);
1043 file->private_data = ctx;
1044 if (!i->i_openers++)
1045 ctx->signal1 = inode->i_mapping;
1046 mutex_unlock(&ctx->mapping_lock);
1047 return nonseekable_open(inode, file);
1051 spufs_signal1_release(struct inode *inode, struct file *file)
1053 struct spufs_inode_info *i = SPUFS_I(inode);
1054 struct spu_context *ctx = i->i_ctx;
1056 mutex_lock(&ctx->mapping_lock);
1057 if (!--i->i_openers)
1058 ctx->signal1 = NULL;
1059 mutex_unlock(&ctx->mapping_lock);
1063 static ssize_t __spufs_signal1_read(struct spu_context *ctx, char __user *buf,
1064 size_t len, loff_t *pos)
1072 if (ctx->csa.spu_chnlcnt_RW[3]) {
1073 data = ctx->csa.spu_chnldata_RW[3];
1080 if (copy_to_user(buf, &data, 4))
1087 static ssize_t spufs_signal1_read(struct file *file, char __user *buf,
1088 size_t len, loff_t *pos)
1091 struct spu_context *ctx = file->private_data;
1093 ret = spu_acquire_saved(ctx);
1096 ret = __spufs_signal1_read(ctx, buf, len, pos);
1097 spu_release_saved(ctx);
1102 static ssize_t spufs_signal1_write(struct file *file, const char __user *buf,
1103 size_t len, loff_t *pos)
1105 struct spu_context *ctx;
1109 ctx = file->private_data;
1114 if (copy_from_user(&data, buf, 4))
1117 ret = spu_acquire(ctx);
1120 ctx->ops->signal1_write(ctx, data);
1127 spufs_signal1_mmap_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
1129 #if SPUFS_SIGNAL_MAP_SIZE == 0x1000
1130 return spufs_ps_fault(vma, vmf, 0x14000, SPUFS_SIGNAL_MAP_SIZE);
1131 #elif SPUFS_SIGNAL_MAP_SIZE == 0x10000
1132 /* For 64k pages, both signal1 and signal2 can be used to mmap the whole
1133 * signal 1 and 2 area
1135 return spufs_ps_fault(vma, vmf, 0x10000, SPUFS_SIGNAL_MAP_SIZE);
1137 #error unsupported page size
1141 static const struct vm_operations_struct spufs_signal1_mmap_vmops = {
1142 .fault = spufs_signal1_mmap_fault,
1145 static int spufs_signal1_mmap(struct file *file, struct vm_area_struct *vma)
1147 if (!(vma->vm_flags & VM_SHARED))
1150 vma->vm_flags |= VM_IO | VM_PFNMAP;
1151 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
1153 vma->vm_ops = &spufs_signal1_mmap_vmops;
1157 static const struct file_operations spufs_signal1_fops = {
1158 .open = spufs_signal1_open,
1159 .release = spufs_signal1_release,
1160 .read = spufs_signal1_read,
1161 .write = spufs_signal1_write,
1162 .mmap = spufs_signal1_mmap,
1163 .llseek = no_llseek,
1166 static const struct file_operations spufs_signal1_nosched_fops = {
1167 .open = spufs_signal1_open,
1168 .release = spufs_signal1_release,
1169 .write = spufs_signal1_write,
1170 .mmap = spufs_signal1_mmap,
1171 .llseek = no_llseek,
1174 static int spufs_signal2_open(struct inode *inode, struct file *file)
1176 struct spufs_inode_info *i = SPUFS_I(inode);
1177 struct spu_context *ctx = i->i_ctx;
1179 mutex_lock(&ctx->mapping_lock);
1180 file->private_data = ctx;
1181 if (!i->i_openers++)
1182 ctx->signal2 = inode->i_mapping;
1183 mutex_unlock(&ctx->mapping_lock);
1184 return nonseekable_open(inode, file);
1188 spufs_signal2_release(struct inode *inode, struct file *file)
1190 struct spufs_inode_info *i = SPUFS_I(inode);
1191 struct spu_context *ctx = i->i_ctx;
1193 mutex_lock(&ctx->mapping_lock);
1194 if (!--i->i_openers)
1195 ctx->signal2 = NULL;
1196 mutex_unlock(&ctx->mapping_lock);
1200 static ssize_t __spufs_signal2_read(struct spu_context *ctx, char __user *buf,
1201 size_t len, loff_t *pos)
1209 if (ctx->csa.spu_chnlcnt_RW[4]) {
1210 data = ctx->csa.spu_chnldata_RW[4];
1217 if (copy_to_user(buf, &data, 4))
1224 static ssize_t spufs_signal2_read(struct file *file, char __user *buf,
1225 size_t len, loff_t *pos)
1227 struct spu_context *ctx = file->private_data;
1230 ret = spu_acquire_saved(ctx);
1233 ret = __spufs_signal2_read(ctx, buf, len, pos);
1234 spu_release_saved(ctx);
1239 static ssize_t spufs_signal2_write(struct file *file, const char __user *buf,
1240 size_t len, loff_t *pos)
1242 struct spu_context *ctx;
1246 ctx = file->private_data;
1251 if (copy_from_user(&data, buf, 4))
1254 ret = spu_acquire(ctx);
1257 ctx->ops->signal2_write(ctx, data);
1265 spufs_signal2_mmap_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
1267 #if SPUFS_SIGNAL_MAP_SIZE == 0x1000
1268 return spufs_ps_fault(vma, vmf, 0x1c000, SPUFS_SIGNAL_MAP_SIZE);
1269 #elif SPUFS_SIGNAL_MAP_SIZE == 0x10000
1270 /* For 64k pages, both signal1 and signal2 can be used to mmap the whole
1271 * signal 1 and 2 area
1273 return spufs_ps_fault(vma, vmf, 0x10000, SPUFS_SIGNAL_MAP_SIZE);
1275 #error unsupported page size
1279 static const struct vm_operations_struct spufs_signal2_mmap_vmops = {
1280 .fault = spufs_signal2_mmap_fault,
1283 static int spufs_signal2_mmap(struct file *file, struct vm_area_struct *vma)
1285 if (!(vma->vm_flags & VM_SHARED))
1288 vma->vm_flags |= VM_IO | VM_PFNMAP;
1289 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
1291 vma->vm_ops = &spufs_signal2_mmap_vmops;
1294 #else /* SPUFS_MMAP_4K */
1295 #define spufs_signal2_mmap NULL
1296 #endif /* !SPUFS_MMAP_4K */
1298 static const struct file_operations spufs_signal2_fops = {
1299 .open = spufs_signal2_open,
1300 .release = spufs_signal2_release,
1301 .read = spufs_signal2_read,
1302 .write = spufs_signal2_write,
1303 .mmap = spufs_signal2_mmap,
1304 .llseek = no_llseek,
1307 static const struct file_operations spufs_signal2_nosched_fops = {
1308 .open = spufs_signal2_open,
1309 .release = spufs_signal2_release,
1310 .write = spufs_signal2_write,
1311 .mmap = spufs_signal2_mmap,
1312 .llseek = no_llseek,
1316 * This is a wrapper around DEFINE_SIMPLE_ATTRIBUTE which does the
1317 * work of acquiring (or not) the SPU context before calling through
1318 * to the actual get routine. The set routine is called directly.
1320 #define SPU_ATTR_NOACQUIRE 0
1321 #define SPU_ATTR_ACQUIRE 1
1322 #define SPU_ATTR_ACQUIRE_SAVED 2
1324 #define DEFINE_SPUFS_ATTRIBUTE(__name, __get, __set, __fmt, __acquire) \
1325 static int __##__get(void *data, u64 *val) \
1327 struct spu_context *ctx = data; \
1330 if (__acquire == SPU_ATTR_ACQUIRE) { \
1331 ret = spu_acquire(ctx); \
1334 *val = __get(ctx); \
1336 } else if (__acquire == SPU_ATTR_ACQUIRE_SAVED) { \
1337 ret = spu_acquire_saved(ctx); \
1340 *val = __get(ctx); \
1341 spu_release_saved(ctx); \
1343 *val = __get(ctx); \
1347 DEFINE_SPUFS_SIMPLE_ATTRIBUTE(__name, __##__get, __set, __fmt);
1349 static int spufs_signal1_type_set(void *data, u64 val)
1351 struct spu_context *ctx = data;
1354 ret = spu_acquire(ctx);
1357 ctx->ops->signal1_type_set(ctx, val);
1363 static u64 spufs_signal1_type_get(struct spu_context *ctx)
1365 return ctx->ops->signal1_type_get(ctx);
1367 DEFINE_SPUFS_ATTRIBUTE(spufs_signal1_type, spufs_signal1_type_get,
1368 spufs_signal1_type_set, "%llu\n", SPU_ATTR_ACQUIRE);
1371 static int spufs_signal2_type_set(void *data, u64 val)
1373 struct spu_context *ctx = data;
1376 ret = spu_acquire(ctx);
1379 ctx->ops->signal2_type_set(ctx, val);
1385 static u64 spufs_signal2_type_get(struct spu_context *ctx)
1387 return ctx->ops->signal2_type_get(ctx);
1389 DEFINE_SPUFS_ATTRIBUTE(spufs_signal2_type, spufs_signal2_type_get,
1390 spufs_signal2_type_set, "%llu\n", SPU_ATTR_ACQUIRE);
1394 spufs_mss_mmap_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
1396 return spufs_ps_fault(vma, vmf, 0x0000, SPUFS_MSS_MAP_SIZE);
1399 static const struct vm_operations_struct spufs_mss_mmap_vmops = {
1400 .fault = spufs_mss_mmap_fault,
1404 * mmap support for problem state MFC DMA area [0x0000 - 0x0fff].
1406 static int spufs_mss_mmap(struct file *file, struct vm_area_struct *vma)
1408 if (!(vma->vm_flags & VM_SHARED))
1411 vma->vm_flags |= VM_IO | VM_PFNMAP;
1412 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
1414 vma->vm_ops = &spufs_mss_mmap_vmops;
1417 #else /* SPUFS_MMAP_4K */
1418 #define spufs_mss_mmap NULL
1419 #endif /* !SPUFS_MMAP_4K */
1421 static int spufs_mss_open(struct inode *inode, struct file *file)
1423 struct spufs_inode_info *i = SPUFS_I(inode);
1424 struct spu_context *ctx = i->i_ctx;
1426 file->private_data = i->i_ctx;
1428 mutex_lock(&ctx->mapping_lock);
1429 if (!i->i_openers++)
1430 ctx->mss = inode->i_mapping;
1431 mutex_unlock(&ctx->mapping_lock);
1432 return nonseekable_open(inode, file);
1436 spufs_mss_release(struct inode *inode, struct file *file)
1438 struct spufs_inode_info *i = SPUFS_I(inode);
1439 struct spu_context *ctx = i->i_ctx;
1441 mutex_lock(&ctx->mapping_lock);
1442 if (!--i->i_openers)
1444 mutex_unlock(&ctx->mapping_lock);
1448 static const struct file_operations spufs_mss_fops = {
1449 .open = spufs_mss_open,
1450 .release = spufs_mss_release,
1451 .mmap = spufs_mss_mmap,
1452 .llseek = no_llseek,
1456 spufs_psmap_mmap_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
1458 return spufs_ps_fault(vma, vmf, 0x0000, SPUFS_PS_MAP_SIZE);
1461 static const struct vm_operations_struct spufs_psmap_mmap_vmops = {
1462 .fault = spufs_psmap_mmap_fault,
1466 * mmap support for full problem state area [0x00000 - 0x1ffff].
1468 static int spufs_psmap_mmap(struct file *file, struct vm_area_struct *vma)
1470 if (!(vma->vm_flags & VM_SHARED))
1473 vma->vm_flags |= VM_IO | VM_PFNMAP;
1474 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
1476 vma->vm_ops = &spufs_psmap_mmap_vmops;
1480 static int spufs_psmap_open(struct inode *inode, struct file *file)
1482 struct spufs_inode_info *i = SPUFS_I(inode);
1483 struct spu_context *ctx = i->i_ctx;
1485 mutex_lock(&ctx->mapping_lock);
1486 file->private_data = i->i_ctx;
1487 if (!i->i_openers++)
1488 ctx->psmap = inode->i_mapping;
1489 mutex_unlock(&ctx->mapping_lock);
1490 return nonseekable_open(inode, file);
1494 spufs_psmap_release(struct inode *inode, struct file *file)
1496 struct spufs_inode_info *i = SPUFS_I(inode);
1497 struct spu_context *ctx = i->i_ctx;
1499 mutex_lock(&ctx->mapping_lock);
1500 if (!--i->i_openers)
1502 mutex_unlock(&ctx->mapping_lock);
1506 static const struct file_operations spufs_psmap_fops = {
1507 .open = spufs_psmap_open,
1508 .release = spufs_psmap_release,
1509 .mmap = spufs_psmap_mmap,
1510 .llseek = no_llseek,
1516 spufs_mfc_mmap_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
1518 return spufs_ps_fault(vma, vmf, 0x3000, SPUFS_MFC_MAP_SIZE);
1521 static const struct vm_operations_struct spufs_mfc_mmap_vmops = {
1522 .fault = spufs_mfc_mmap_fault,
1526 * mmap support for problem state MFC DMA area [0x0000 - 0x0fff].
1528 static int spufs_mfc_mmap(struct file *file, struct vm_area_struct *vma)
1530 if (!(vma->vm_flags & VM_SHARED))
1533 vma->vm_flags |= VM_IO | VM_PFNMAP;
1534 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
1536 vma->vm_ops = &spufs_mfc_mmap_vmops;
1539 #else /* SPUFS_MMAP_4K */
1540 #define spufs_mfc_mmap NULL
1541 #endif /* !SPUFS_MMAP_4K */
1543 static int spufs_mfc_open(struct inode *inode, struct file *file)
1545 struct spufs_inode_info *i = SPUFS_I(inode);
1546 struct spu_context *ctx = i->i_ctx;
1548 /* we don't want to deal with DMA into other processes */
1549 if (ctx->owner != current->mm)
1552 if (atomic_read(&inode->i_count) != 1)
1555 mutex_lock(&ctx->mapping_lock);
1556 file->private_data = ctx;
1557 if (!i->i_openers++)
1558 ctx->mfc = inode->i_mapping;
1559 mutex_unlock(&ctx->mapping_lock);
1560 return nonseekable_open(inode, file);
1564 spufs_mfc_release(struct inode *inode, struct file *file)
1566 struct spufs_inode_info *i = SPUFS_I(inode);
1567 struct spu_context *ctx = i->i_ctx;
1569 mutex_lock(&ctx->mapping_lock);
1570 if (!--i->i_openers)
1572 mutex_unlock(&ctx->mapping_lock);
1576 /* interrupt-level mfc callback function. */
1577 void spufs_mfc_callback(struct spu *spu)
1579 struct spu_context *ctx = spu->ctx;
1584 wake_up_all(&ctx->mfc_wq);
1586 pr_debug("%s %s\n", __func__, spu->name);
1587 if (ctx->mfc_fasync) {
1588 u32 free_elements, tagstatus;
1591 /* no need for spu_acquire in interrupt context */
1592 free_elements = ctx->ops->get_mfc_free_elements(ctx);
1593 tagstatus = ctx->ops->read_mfc_tagstatus(ctx);
1596 if (free_elements & 0xffff)
1598 if (tagstatus & ctx->tagwait)
1601 kill_fasync(&ctx->mfc_fasync, SIGIO, mask);
1605 static int spufs_read_mfc_tagstatus(struct spu_context *ctx, u32 *status)
1607 /* See if there is one tag group is complete */
1608 /* FIXME we need locking around tagwait */
1609 *status = ctx->ops->read_mfc_tagstatus(ctx) & ctx->tagwait;
1610 ctx->tagwait &= ~*status;
1614 /* enable interrupt waiting for any tag group,
1615 may silently fail if interrupts are already enabled */
1616 ctx->ops->set_mfc_query(ctx, ctx->tagwait, 1);
1620 static ssize_t spufs_mfc_read(struct file *file, char __user *buffer,
1621 size_t size, loff_t *pos)
1623 struct spu_context *ctx = file->private_data;
1630 ret = spu_acquire(ctx);
1635 if (file->f_flags & O_NONBLOCK) {
1636 status = ctx->ops->read_mfc_tagstatus(ctx);
1637 if (!(status & ctx->tagwait))
1640 /* XXX(hch): shouldn't we clear ret here? */
1641 ctx->tagwait &= ~status;
1643 ret = spufs_wait(ctx->mfc_wq,
1644 spufs_read_mfc_tagstatus(ctx, &status));
1651 if (copy_to_user(buffer, &status, 4))
1658 static int spufs_check_valid_dma(struct mfc_dma_command *cmd)
1660 pr_debug("queueing DMA %x %llx %x %x %x\n", cmd->lsa,
1661 cmd->ea, cmd->size, cmd->tag, cmd->cmd);
1672 pr_debug("invalid DMA opcode %x\n", cmd->cmd);
1676 if ((cmd->lsa & 0xf) != (cmd->ea &0xf)) {
1677 pr_debug("invalid DMA alignment, ea %llx lsa %x\n",
1682 switch (cmd->size & 0xf) {
1703 pr_debug("invalid DMA alignment %x for size %x\n",
1704 cmd->lsa & 0xf, cmd->size);
1708 if (cmd->size > 16 * 1024) {
1709 pr_debug("invalid DMA size %x\n", cmd->size);
1713 if (cmd->tag & 0xfff0) {
1714 /* we reserve the higher tag numbers for kernel use */
1715 pr_debug("invalid DMA tag\n");
1720 /* not supported in this version */
1721 pr_debug("invalid DMA class\n");
1728 static int spu_send_mfc_command(struct spu_context *ctx,
1729 struct mfc_dma_command cmd,
1732 *error = ctx->ops->send_mfc_command(ctx, &cmd);
1733 if (*error == -EAGAIN) {
1734 /* wait for any tag group to complete
1735 so we have space for the new command */
1736 ctx->ops->set_mfc_query(ctx, ctx->tagwait, 1);
1737 /* try again, because the queue might be
1739 *error = ctx->ops->send_mfc_command(ctx, &cmd);
1740 if (*error == -EAGAIN)
1746 static ssize_t spufs_mfc_write(struct file *file, const char __user *buffer,
1747 size_t size, loff_t *pos)
1749 struct spu_context *ctx = file->private_data;
1750 struct mfc_dma_command cmd;
1753 if (size != sizeof cmd)
1757 if (copy_from_user(&cmd, buffer, sizeof cmd))
1760 ret = spufs_check_valid_dma(&cmd);
1764 ret = spu_acquire(ctx);
1768 ret = spufs_wait(ctx->run_wq, ctx->state == SPU_STATE_RUNNABLE);
1772 if (file->f_flags & O_NONBLOCK) {
1773 ret = ctx->ops->send_mfc_command(ctx, &cmd);
1776 ret = spufs_wait(ctx->mfc_wq,
1777 spu_send_mfc_command(ctx, cmd, &status));
1787 ctx->tagwait |= 1 << cmd.tag;
1796 static unsigned int spufs_mfc_poll(struct file *file,poll_table *wait)
1798 struct spu_context *ctx = file->private_data;
1799 u32 free_elements, tagstatus;
1802 poll_wait(file, &ctx->mfc_wq, wait);
1805 * For now keep this uninterruptible and also ignore the rule
1806 * that poll should not sleep. Will be fixed later.
1808 mutex_lock(&ctx->state_mutex);
1809 ctx->ops->set_mfc_query(ctx, ctx->tagwait, 2);
1810 free_elements = ctx->ops->get_mfc_free_elements(ctx);
1811 tagstatus = ctx->ops->read_mfc_tagstatus(ctx);
1815 if (free_elements & 0xffff)
1816 mask |= POLLOUT | POLLWRNORM;
1817 if (tagstatus & ctx->tagwait)
1818 mask |= POLLIN | POLLRDNORM;
1820 pr_debug("%s: free %d tagstatus %d tagwait %d\n", __func__,
1821 free_elements, tagstatus, ctx->tagwait);
1826 static int spufs_mfc_flush(struct file *file, fl_owner_t id)
1828 struct spu_context *ctx = file->private_data;
1831 ret = spu_acquire(ctx);
1835 /* this currently hangs */
1836 ret = spufs_wait(ctx->mfc_wq,
1837 ctx->ops->set_mfc_query(ctx, ctx->tagwait, 2));
1840 ret = spufs_wait(ctx->mfc_wq,
1841 ctx->ops->read_mfc_tagstatus(ctx) == ctx->tagwait);
1852 static int spufs_mfc_fsync(struct file *file, loff_t start, loff_t end, int datasync)
1854 struct inode *inode = file_inode(file);
1855 int err = filemap_write_and_wait_range(inode->i_mapping, start, end);
1857 mutex_lock(&inode->i_mutex);
1858 err = spufs_mfc_flush(file, NULL);
1859 mutex_unlock(&inode->i_mutex);
1864 static int spufs_mfc_fasync(int fd, struct file *file, int on)
1866 struct spu_context *ctx = file->private_data;
1868 return fasync_helper(fd, file, on, &ctx->mfc_fasync);
1871 static const struct file_operations spufs_mfc_fops = {
1872 .open = spufs_mfc_open,
1873 .release = spufs_mfc_release,
1874 .read = spufs_mfc_read,
1875 .write = spufs_mfc_write,
1876 .poll = spufs_mfc_poll,
1877 .flush = spufs_mfc_flush,
1878 .fsync = spufs_mfc_fsync,
1879 .fasync = spufs_mfc_fasync,
1880 .mmap = spufs_mfc_mmap,
1881 .llseek = no_llseek,
1884 static int spufs_npc_set(void *data, u64 val)
1886 struct spu_context *ctx = data;
1889 ret = spu_acquire(ctx);
1892 ctx->ops->npc_write(ctx, val);
1898 static u64 spufs_npc_get(struct spu_context *ctx)
1900 return ctx->ops->npc_read(ctx);
1902 DEFINE_SPUFS_ATTRIBUTE(spufs_npc_ops, spufs_npc_get, spufs_npc_set,
1903 "0x%llx\n", SPU_ATTR_ACQUIRE);
1905 static int spufs_decr_set(void *data, u64 val)
1907 struct spu_context *ctx = data;
1908 struct spu_lscsa *lscsa = ctx->csa.lscsa;
1911 ret = spu_acquire_saved(ctx);
1914 lscsa->decr.slot[0] = (u32) val;
1915 spu_release_saved(ctx);
1920 static u64 spufs_decr_get(struct spu_context *ctx)
1922 struct spu_lscsa *lscsa = ctx->csa.lscsa;
1923 return lscsa->decr.slot[0];
1925 DEFINE_SPUFS_ATTRIBUTE(spufs_decr_ops, spufs_decr_get, spufs_decr_set,
1926 "0x%llx\n", SPU_ATTR_ACQUIRE_SAVED);
1928 static int spufs_decr_status_set(void *data, u64 val)
1930 struct spu_context *ctx = data;
1933 ret = spu_acquire_saved(ctx);
1937 ctx->csa.priv2.mfc_control_RW |= MFC_CNTL_DECREMENTER_RUNNING;
1939 ctx->csa.priv2.mfc_control_RW &= ~MFC_CNTL_DECREMENTER_RUNNING;
1940 spu_release_saved(ctx);
1945 static u64 spufs_decr_status_get(struct spu_context *ctx)
1947 if (ctx->csa.priv2.mfc_control_RW & MFC_CNTL_DECREMENTER_RUNNING)
1948 return SPU_DECR_STATUS_RUNNING;
1952 DEFINE_SPUFS_ATTRIBUTE(spufs_decr_status_ops, spufs_decr_status_get,
1953 spufs_decr_status_set, "0x%llx\n",
1954 SPU_ATTR_ACQUIRE_SAVED);
1956 static int spufs_event_mask_set(void *data, u64 val)
1958 struct spu_context *ctx = data;
1959 struct spu_lscsa *lscsa = ctx->csa.lscsa;
1962 ret = spu_acquire_saved(ctx);
1965 lscsa->event_mask.slot[0] = (u32) val;
1966 spu_release_saved(ctx);
1971 static u64 spufs_event_mask_get(struct spu_context *ctx)
1973 struct spu_lscsa *lscsa = ctx->csa.lscsa;
1974 return lscsa->event_mask.slot[0];
1977 DEFINE_SPUFS_ATTRIBUTE(spufs_event_mask_ops, spufs_event_mask_get,
1978 spufs_event_mask_set, "0x%llx\n",
1979 SPU_ATTR_ACQUIRE_SAVED);
1981 static u64 spufs_event_status_get(struct spu_context *ctx)
1983 struct spu_state *state = &ctx->csa;
1985 stat = state->spu_chnlcnt_RW[0];
1987 return state->spu_chnldata_RW[0];
1990 DEFINE_SPUFS_ATTRIBUTE(spufs_event_status_ops, spufs_event_status_get,
1991 NULL, "0x%llx\n", SPU_ATTR_ACQUIRE_SAVED)
1993 static int spufs_srr0_set(void *data, u64 val)
1995 struct spu_context *ctx = data;
1996 struct spu_lscsa *lscsa = ctx->csa.lscsa;
1999 ret = spu_acquire_saved(ctx);
2002 lscsa->srr0.slot[0] = (u32) val;
2003 spu_release_saved(ctx);
2008 static u64 spufs_srr0_get(struct spu_context *ctx)
2010 struct spu_lscsa *lscsa = ctx->csa.lscsa;
2011 return lscsa->srr0.slot[0];
2013 DEFINE_SPUFS_ATTRIBUTE(spufs_srr0_ops, spufs_srr0_get, spufs_srr0_set,
2014 "0x%llx\n", SPU_ATTR_ACQUIRE_SAVED)
2016 static u64 spufs_id_get(struct spu_context *ctx)
2020 if (ctx->state == SPU_STATE_RUNNABLE)
2021 num = ctx->spu->number;
2023 num = (unsigned int)-1;
2027 DEFINE_SPUFS_ATTRIBUTE(spufs_id_ops, spufs_id_get, NULL, "0x%llx\n",
2030 static u64 spufs_object_id_get(struct spu_context *ctx)
2032 /* FIXME: Should there really be no locking here? */
2033 return ctx->object_id;
2036 static int spufs_object_id_set(void *data, u64 id)
2038 struct spu_context *ctx = data;
2039 ctx->object_id = id;
2044 DEFINE_SPUFS_ATTRIBUTE(spufs_object_id_ops, spufs_object_id_get,
2045 spufs_object_id_set, "0x%llx\n", SPU_ATTR_NOACQUIRE);
2047 static u64 spufs_lslr_get(struct spu_context *ctx)
2049 return ctx->csa.priv2.spu_lslr_RW;
2051 DEFINE_SPUFS_ATTRIBUTE(spufs_lslr_ops, spufs_lslr_get, NULL, "0x%llx\n",
2052 SPU_ATTR_ACQUIRE_SAVED);
2054 static int spufs_info_open(struct inode *inode, struct file *file)
2056 struct spufs_inode_info *i = SPUFS_I(inode);
2057 struct spu_context *ctx = i->i_ctx;
2058 file->private_data = ctx;
2062 static int spufs_caps_show(struct seq_file *s, void *private)
2064 struct spu_context *ctx = s->private;
2066 if (!(ctx->flags & SPU_CREATE_NOSCHED))
2067 seq_puts(s, "sched\n");
2068 if (!(ctx->flags & SPU_CREATE_ISOLATE))
2069 seq_puts(s, "step\n");
2073 static int spufs_caps_open(struct inode *inode, struct file *file)
2075 return single_open(file, spufs_caps_show, SPUFS_I(inode)->i_ctx);
2078 static const struct file_operations spufs_caps_fops = {
2079 .open = spufs_caps_open,
2081 .llseek = seq_lseek,
2082 .release = single_release,
2085 static ssize_t __spufs_mbox_info_read(struct spu_context *ctx,
2086 char __user *buf, size_t len, loff_t *pos)
2090 /* EOF if there's no entry in the mbox */
2091 if (!(ctx->csa.prob.mb_stat_R & 0x0000ff))
2094 data = ctx->csa.prob.pu_mb_R;
2096 return simple_read_from_buffer(buf, len, pos, &data, sizeof data);
2099 static ssize_t spufs_mbox_info_read(struct file *file, char __user *buf,
2100 size_t len, loff_t *pos)
2103 struct spu_context *ctx = file->private_data;
2105 if (!access_ok(VERIFY_WRITE, buf, len))
2108 ret = spu_acquire_saved(ctx);
2111 spin_lock(&ctx->csa.register_lock);
2112 ret = __spufs_mbox_info_read(ctx, buf, len, pos);
2113 spin_unlock(&ctx->csa.register_lock);
2114 spu_release_saved(ctx);
2119 static const struct file_operations spufs_mbox_info_fops = {
2120 .open = spufs_info_open,
2121 .read = spufs_mbox_info_read,
2122 .llseek = generic_file_llseek,
2125 static ssize_t __spufs_ibox_info_read(struct spu_context *ctx,
2126 char __user *buf, size_t len, loff_t *pos)
2130 /* EOF if there's no entry in the ibox */
2131 if (!(ctx->csa.prob.mb_stat_R & 0xff0000))
2134 data = ctx->csa.priv2.puint_mb_R;
2136 return simple_read_from_buffer(buf, len, pos, &data, sizeof data);
2139 static ssize_t spufs_ibox_info_read(struct file *file, char __user *buf,
2140 size_t len, loff_t *pos)
2142 struct spu_context *ctx = file->private_data;
2145 if (!access_ok(VERIFY_WRITE, buf, len))
2148 ret = spu_acquire_saved(ctx);
2151 spin_lock(&ctx->csa.register_lock);
2152 ret = __spufs_ibox_info_read(ctx, buf, len, pos);
2153 spin_unlock(&ctx->csa.register_lock);
2154 spu_release_saved(ctx);
2159 static const struct file_operations spufs_ibox_info_fops = {
2160 .open = spufs_info_open,
2161 .read = spufs_ibox_info_read,
2162 .llseek = generic_file_llseek,
2165 static ssize_t __spufs_wbox_info_read(struct spu_context *ctx,
2166 char __user *buf, size_t len, loff_t *pos)
2172 wbox_stat = ctx->csa.prob.mb_stat_R;
2173 cnt = 4 - ((wbox_stat & 0x00ff00) >> 8);
2174 for (i = 0; i < cnt; i++) {
2175 data[i] = ctx->csa.spu_mailbox_data[i];
2178 return simple_read_from_buffer(buf, len, pos, &data,
2182 static ssize_t spufs_wbox_info_read(struct file *file, char __user *buf,
2183 size_t len, loff_t *pos)
2185 struct spu_context *ctx = file->private_data;
2188 if (!access_ok(VERIFY_WRITE, buf, len))
2191 ret = spu_acquire_saved(ctx);
2194 spin_lock(&ctx->csa.register_lock);
2195 ret = __spufs_wbox_info_read(ctx, buf, len, pos);
2196 spin_unlock(&ctx->csa.register_lock);
2197 spu_release_saved(ctx);
2202 static const struct file_operations spufs_wbox_info_fops = {
2203 .open = spufs_info_open,
2204 .read = spufs_wbox_info_read,
2205 .llseek = generic_file_llseek,
2208 static ssize_t __spufs_dma_info_read(struct spu_context *ctx,
2209 char __user *buf, size_t len, loff_t *pos)
2211 struct spu_dma_info info;
2212 struct mfc_cq_sr *qp, *spuqp;
2215 info.dma_info_type = ctx->csa.priv2.spu_tag_status_query_RW;
2216 info.dma_info_mask = ctx->csa.lscsa->tag_mask.slot[0];
2217 info.dma_info_status = ctx->csa.spu_chnldata_RW[24];
2218 info.dma_info_stall_and_notify = ctx->csa.spu_chnldata_RW[25];
2219 info.dma_info_atomic_command_status = ctx->csa.spu_chnldata_RW[27];
2220 for (i = 0; i < 16; i++) {
2221 qp = &info.dma_info_command_data[i];
2222 spuqp = &ctx->csa.priv2.spuq[i];
2224 qp->mfc_cq_data0_RW = spuqp->mfc_cq_data0_RW;
2225 qp->mfc_cq_data1_RW = spuqp->mfc_cq_data1_RW;
2226 qp->mfc_cq_data2_RW = spuqp->mfc_cq_data2_RW;
2227 qp->mfc_cq_data3_RW = spuqp->mfc_cq_data3_RW;
2230 return simple_read_from_buffer(buf, len, pos, &info,
2234 static ssize_t spufs_dma_info_read(struct file *file, char __user *buf,
2235 size_t len, loff_t *pos)
2237 struct spu_context *ctx = file->private_data;
2240 if (!access_ok(VERIFY_WRITE, buf, len))
2243 ret = spu_acquire_saved(ctx);
2246 spin_lock(&ctx->csa.register_lock);
2247 ret = __spufs_dma_info_read(ctx, buf, len, pos);
2248 spin_unlock(&ctx->csa.register_lock);
2249 spu_release_saved(ctx);
2254 static const struct file_operations spufs_dma_info_fops = {
2255 .open = spufs_info_open,
2256 .read = spufs_dma_info_read,
2257 .llseek = no_llseek,
2260 static ssize_t __spufs_proxydma_info_read(struct spu_context *ctx,
2261 char __user *buf, size_t len, loff_t *pos)
2263 struct spu_proxydma_info info;
2264 struct mfc_cq_sr *qp, *puqp;
2265 int ret = sizeof info;
2271 if (!access_ok(VERIFY_WRITE, buf, len))
2274 info.proxydma_info_type = ctx->csa.prob.dma_querytype_RW;
2275 info.proxydma_info_mask = ctx->csa.prob.dma_querymask_RW;
2276 info.proxydma_info_status = ctx->csa.prob.dma_tagstatus_R;
2277 for (i = 0; i < 8; i++) {
2278 qp = &info.proxydma_info_command_data[i];
2279 puqp = &ctx->csa.priv2.puq[i];
2281 qp->mfc_cq_data0_RW = puqp->mfc_cq_data0_RW;
2282 qp->mfc_cq_data1_RW = puqp->mfc_cq_data1_RW;
2283 qp->mfc_cq_data2_RW = puqp->mfc_cq_data2_RW;
2284 qp->mfc_cq_data3_RW = puqp->mfc_cq_data3_RW;
2287 return simple_read_from_buffer(buf, len, pos, &info,
2291 static ssize_t spufs_proxydma_info_read(struct file *file, char __user *buf,
2292 size_t len, loff_t *pos)
2294 struct spu_context *ctx = file->private_data;
2297 ret = spu_acquire_saved(ctx);
2300 spin_lock(&ctx->csa.register_lock);
2301 ret = __spufs_proxydma_info_read(ctx, buf, len, pos);
2302 spin_unlock(&ctx->csa.register_lock);
2303 spu_release_saved(ctx);
2308 static const struct file_operations spufs_proxydma_info_fops = {
2309 .open = spufs_info_open,
2310 .read = spufs_proxydma_info_read,
2311 .llseek = no_llseek,
2314 static int spufs_show_tid(struct seq_file *s, void *private)
2316 struct spu_context *ctx = s->private;
2318 seq_printf(s, "%d\n", ctx->tid);
2322 static int spufs_tid_open(struct inode *inode, struct file *file)
2324 return single_open(file, spufs_show_tid, SPUFS_I(inode)->i_ctx);
2327 static const struct file_operations spufs_tid_fops = {
2328 .open = spufs_tid_open,
2330 .llseek = seq_lseek,
2331 .release = single_release,
2334 static const char *ctx_state_names[] = {
2335 "user", "system", "iowait", "loaded"
2338 static unsigned long long spufs_acct_time(struct spu_context *ctx,
2339 enum spu_utilization_state state)
2342 unsigned long long time = ctx->stats.times[state];
2345 * In general, utilization statistics are updated by the controlling
2346 * thread as the spu context moves through various well defined
2347 * state transitions, but if the context is lazily loaded its
2348 * utilization statistics are not updated as the controlling thread
2349 * is not tightly coupled with the execution of the spu context. We
2350 * calculate and apply the time delta from the last recorded state
2351 * of the spu context.
2353 if (ctx->spu && ctx->stats.util_state == state) {
2355 time += timespec_to_ns(&ts) - ctx->stats.tstamp;
2358 return time / NSEC_PER_MSEC;
2361 static unsigned long long spufs_slb_flts(struct spu_context *ctx)
2363 unsigned long long slb_flts = ctx->stats.slb_flt;
2365 if (ctx->state == SPU_STATE_RUNNABLE) {
2366 slb_flts += (ctx->spu->stats.slb_flt -
2367 ctx->stats.slb_flt_base);
2373 static unsigned long long spufs_class2_intrs(struct spu_context *ctx)
2375 unsigned long long class2_intrs = ctx->stats.class2_intr;
2377 if (ctx->state == SPU_STATE_RUNNABLE) {
2378 class2_intrs += (ctx->spu->stats.class2_intr -
2379 ctx->stats.class2_intr_base);
2382 return class2_intrs;
2386 static int spufs_show_stat(struct seq_file *s, void *private)
2388 struct spu_context *ctx = s->private;
2391 ret = spu_acquire(ctx);
2395 seq_printf(s, "%s %llu %llu %llu %llu "
2396 "%llu %llu %llu %llu %llu %llu %llu %llu\n",
2397 ctx_state_names[ctx->stats.util_state],
2398 spufs_acct_time(ctx, SPU_UTIL_USER),
2399 spufs_acct_time(ctx, SPU_UTIL_SYSTEM),
2400 spufs_acct_time(ctx, SPU_UTIL_IOWAIT),
2401 spufs_acct_time(ctx, SPU_UTIL_IDLE_LOADED),
2402 ctx->stats.vol_ctx_switch,
2403 ctx->stats.invol_ctx_switch,
2404 spufs_slb_flts(ctx),
2405 ctx->stats.hash_flt,
2408 spufs_class2_intrs(ctx),
2409 ctx->stats.libassist);
2414 static int spufs_stat_open(struct inode *inode, struct file *file)
2416 return single_open(file, spufs_show_stat, SPUFS_I(inode)->i_ctx);
2419 static const struct file_operations spufs_stat_fops = {
2420 .open = spufs_stat_open,
2422 .llseek = seq_lseek,
2423 .release = single_release,
2426 static inline int spufs_switch_log_used(struct spu_context *ctx)
2428 return (ctx->switch_log->head - ctx->switch_log->tail) %
2432 static inline int spufs_switch_log_avail(struct spu_context *ctx)
2434 return SWITCH_LOG_BUFSIZE - spufs_switch_log_used(ctx);
2437 static int spufs_switch_log_open(struct inode *inode, struct file *file)
2439 struct spu_context *ctx = SPUFS_I(inode)->i_ctx;
2442 rc = spu_acquire(ctx);
2446 if (ctx->switch_log) {
2451 ctx->switch_log = kmalloc(sizeof(struct switch_log) +
2452 SWITCH_LOG_BUFSIZE * sizeof(struct switch_log_entry),
2455 if (!ctx->switch_log) {
2460 ctx->switch_log->head = ctx->switch_log->tail = 0;
2461 init_waitqueue_head(&ctx->switch_log->wait);
2469 static int spufs_switch_log_release(struct inode *inode, struct file *file)
2471 struct spu_context *ctx = SPUFS_I(inode)->i_ctx;
2474 rc = spu_acquire(ctx);
2478 kfree(ctx->switch_log);
2479 ctx->switch_log = NULL;
2485 static int switch_log_sprint(struct spu_context *ctx, char *tbuf, int n)
2487 struct switch_log_entry *p;
2489 p = ctx->switch_log->log + ctx->switch_log->tail % SWITCH_LOG_BUFSIZE;
2491 return snprintf(tbuf, n, "%u.%09u %d %u %u %llu\n",
2492 (unsigned int) p->tstamp.tv_sec,
2493 (unsigned int) p->tstamp.tv_nsec,
2495 (unsigned int) p->type,
2496 (unsigned int) p->val,
2497 (unsigned long long) p->timebase);
2500 static ssize_t spufs_switch_log_read(struct file *file, char __user *buf,
2501 size_t len, loff_t *ppos)
2503 struct inode *inode = file_inode(file);
2504 struct spu_context *ctx = SPUFS_I(inode)->i_ctx;
2505 int error = 0, cnt = 0;
2510 error = spu_acquire(ctx);
2518 if (spufs_switch_log_used(ctx) == 0) {
2520 /* If there's data ready to go, we can
2521 * just return straight away */
2524 } else if (file->f_flags & O_NONBLOCK) {
2529 /* spufs_wait will drop the mutex and
2530 * re-acquire, but since we're in read(), the
2531 * file cannot be _released (and so
2532 * ctx->switch_log is stable).
2534 error = spufs_wait(ctx->switch_log->wait,
2535 spufs_switch_log_used(ctx) > 0);
2537 /* On error, spufs_wait returns without the
2538 * state mutex held */
2542 /* We may have had entries read from underneath
2543 * us while we dropped the mutex in spufs_wait,
2545 if (spufs_switch_log_used(ctx) == 0)
2550 width = switch_log_sprint(ctx, tbuf, sizeof(tbuf));
2552 ctx->switch_log->tail =
2553 (ctx->switch_log->tail + 1) %
2556 /* If the record is greater than space available return
2557 * partial buffer (so far) */
2560 error = copy_to_user(buf + cnt, tbuf, width);
2568 return cnt == 0 ? error : cnt;
2571 static unsigned int spufs_switch_log_poll(struct file *file, poll_table *wait)
2573 struct inode *inode = file_inode(file);
2574 struct spu_context *ctx = SPUFS_I(inode)->i_ctx;
2575 unsigned int mask = 0;
2578 poll_wait(file, &ctx->switch_log->wait, wait);
2580 rc = spu_acquire(ctx);
2584 if (spufs_switch_log_used(ctx) > 0)
2592 static const struct file_operations spufs_switch_log_fops = {
2593 .open = spufs_switch_log_open,
2594 .read = spufs_switch_log_read,
2595 .poll = spufs_switch_log_poll,
2596 .release = spufs_switch_log_release,
2597 .llseek = no_llseek,
2601 * Log a context switch event to a switch log reader.
2603 * Must be called with ctx->state_mutex held.
2605 void spu_switch_log_notify(struct spu *spu, struct spu_context *ctx,
2608 if (!ctx->switch_log)
2611 if (spufs_switch_log_avail(ctx) > 1) {
2612 struct switch_log_entry *p;
2614 p = ctx->switch_log->log + ctx->switch_log->head;
2615 ktime_get_ts(&p->tstamp);
2616 p->timebase = get_tb();
2617 p->spu_id = spu ? spu->number : -1;
2621 ctx->switch_log->head =
2622 (ctx->switch_log->head + 1) % SWITCH_LOG_BUFSIZE;
2625 wake_up(&ctx->switch_log->wait);
2628 static int spufs_show_ctx(struct seq_file *s, void *private)
2630 struct spu_context *ctx = s->private;
2633 mutex_lock(&ctx->state_mutex);
2635 struct spu *spu = ctx->spu;
2636 struct spu_priv2 __iomem *priv2 = spu->priv2;
2638 spin_lock_irq(&spu->register_lock);
2639 mfc_control_RW = in_be64(&priv2->mfc_control_RW);
2640 spin_unlock_irq(&spu->register_lock);
2642 struct spu_state *csa = &ctx->csa;
2644 mfc_control_RW = csa->priv2.mfc_control_RW;
2647 seq_printf(s, "%c flgs(%lx) sflgs(%lx) pri(%d) ts(%d) spu(%02d)"
2648 " %c %llx %llx %llx %llx %x %x\n",
2649 ctx->state == SPU_STATE_SAVED ? 'S' : 'R',
2654 ctx->spu ? ctx->spu->number : -1,
2655 !list_empty(&ctx->rq) ? 'q' : ' ',
2656 ctx->csa.class_0_pending,
2657 ctx->csa.class_0_dar,
2658 ctx->csa.class_1_dsisr,
2660 ctx->ops->runcntl_read(ctx),
2661 ctx->ops->status_read(ctx));
2663 mutex_unlock(&ctx->state_mutex);
2668 static int spufs_ctx_open(struct inode *inode, struct file *file)
2670 return single_open(file, spufs_show_ctx, SPUFS_I(inode)->i_ctx);
2673 static const struct file_operations spufs_ctx_fops = {
2674 .open = spufs_ctx_open,
2676 .llseek = seq_lseek,
2677 .release = single_release,
2680 const struct spufs_tree_descr spufs_dir_contents[] = {
2681 { "capabilities", &spufs_caps_fops, 0444, },
2682 { "mem", &spufs_mem_fops, 0666, LS_SIZE, },
2683 { "regs", &spufs_regs_fops, 0666, sizeof(struct spu_reg128[128]), },
2684 { "mbox", &spufs_mbox_fops, 0444, },
2685 { "ibox", &spufs_ibox_fops, 0444, },
2686 { "wbox", &spufs_wbox_fops, 0222, },
2687 { "mbox_stat", &spufs_mbox_stat_fops, 0444, sizeof(u32), },
2688 { "ibox_stat", &spufs_ibox_stat_fops, 0444, sizeof(u32), },
2689 { "wbox_stat", &spufs_wbox_stat_fops, 0444, sizeof(u32), },
2690 { "signal1", &spufs_signal1_fops, 0666, },
2691 { "signal2", &spufs_signal2_fops, 0666, },
2692 { "signal1_type", &spufs_signal1_type, 0666, },
2693 { "signal2_type", &spufs_signal2_type, 0666, },
2694 { "cntl", &spufs_cntl_fops, 0666, },
2695 { "fpcr", &spufs_fpcr_fops, 0666, sizeof(struct spu_reg128), },
2696 { "lslr", &spufs_lslr_ops, 0444, },
2697 { "mfc", &spufs_mfc_fops, 0666, },
2698 { "mss", &spufs_mss_fops, 0666, },
2699 { "npc", &spufs_npc_ops, 0666, },
2700 { "srr0", &spufs_srr0_ops, 0666, },
2701 { "decr", &spufs_decr_ops, 0666, },
2702 { "decr_status", &spufs_decr_status_ops, 0666, },
2703 { "event_mask", &spufs_event_mask_ops, 0666, },
2704 { "event_status", &spufs_event_status_ops, 0444, },
2705 { "psmap", &spufs_psmap_fops, 0666, SPUFS_PS_MAP_SIZE, },
2706 { "phys-id", &spufs_id_ops, 0666, },
2707 { "object-id", &spufs_object_id_ops, 0666, },
2708 { "mbox_info", &spufs_mbox_info_fops, 0444, sizeof(u32), },
2709 { "ibox_info", &spufs_ibox_info_fops, 0444, sizeof(u32), },
2710 { "wbox_info", &spufs_wbox_info_fops, 0444, sizeof(u32), },
2711 { "dma_info", &spufs_dma_info_fops, 0444,
2712 sizeof(struct spu_dma_info), },
2713 { "proxydma_info", &spufs_proxydma_info_fops, 0444,
2714 sizeof(struct spu_proxydma_info)},
2715 { "tid", &spufs_tid_fops, 0444, },
2716 { "stat", &spufs_stat_fops, 0444, },
2717 { "switch_log", &spufs_switch_log_fops, 0444 },
2721 const struct spufs_tree_descr spufs_dir_nosched_contents[] = {
2722 { "capabilities", &spufs_caps_fops, 0444, },
2723 { "mem", &spufs_mem_fops, 0666, LS_SIZE, },
2724 { "mbox", &spufs_mbox_fops, 0444, },
2725 { "ibox", &spufs_ibox_fops, 0444, },
2726 { "wbox", &spufs_wbox_fops, 0222, },
2727 { "mbox_stat", &spufs_mbox_stat_fops, 0444, sizeof(u32), },
2728 { "ibox_stat", &spufs_ibox_stat_fops, 0444, sizeof(u32), },
2729 { "wbox_stat", &spufs_wbox_stat_fops, 0444, sizeof(u32), },
2730 { "signal1", &spufs_signal1_nosched_fops, 0222, },
2731 { "signal2", &spufs_signal2_nosched_fops, 0222, },
2732 { "signal1_type", &spufs_signal1_type, 0666, },
2733 { "signal2_type", &spufs_signal2_type, 0666, },
2734 { "mss", &spufs_mss_fops, 0666, },
2735 { "mfc", &spufs_mfc_fops, 0666, },
2736 { "cntl", &spufs_cntl_fops, 0666, },
2737 { "npc", &spufs_npc_ops, 0666, },
2738 { "psmap", &spufs_psmap_fops, 0666, SPUFS_PS_MAP_SIZE, },
2739 { "phys-id", &spufs_id_ops, 0666, },
2740 { "object-id", &spufs_object_id_ops, 0666, },
2741 { "tid", &spufs_tid_fops, 0444, },
2742 { "stat", &spufs_stat_fops, 0444, },
2746 const struct spufs_tree_descr spufs_dir_debug_contents[] = {
2747 { ".ctx", &spufs_ctx_fops, 0444, },
2751 const struct spufs_coredump_reader spufs_coredump_read[] = {
2752 { "regs", __spufs_regs_read, NULL, sizeof(struct spu_reg128[128])},
2753 { "fpcr", __spufs_fpcr_read, NULL, sizeof(struct spu_reg128) },
2754 { "lslr", NULL, spufs_lslr_get, 19 },
2755 { "decr", NULL, spufs_decr_get, 19 },
2756 { "decr_status", NULL, spufs_decr_status_get, 19 },
2757 { "mem", __spufs_mem_read, NULL, LS_SIZE, },
2758 { "signal1", __spufs_signal1_read, NULL, sizeof(u32) },
2759 { "signal1_type", NULL, spufs_signal1_type_get, 19 },
2760 { "signal2", __spufs_signal2_read, NULL, sizeof(u32) },
2761 { "signal2_type", NULL, spufs_signal2_type_get, 19 },
2762 { "event_mask", NULL, spufs_event_mask_get, 19 },
2763 { "event_status", NULL, spufs_event_status_get, 19 },
2764 { "mbox_info", __spufs_mbox_info_read, NULL, sizeof(u32) },
2765 { "ibox_info", __spufs_ibox_info_read, NULL, sizeof(u32) },
2766 { "wbox_info", __spufs_wbox_info_read, NULL, 4 * sizeof(u32)},
2767 { "dma_info", __spufs_dma_info_read, NULL, sizeof(struct spu_dma_info)},
2768 { "proxydma_info", __spufs_proxydma_info_read,
2769 NULL, sizeof(struct spu_proxydma_info)},
2770 { "object-id", NULL, spufs_object_id_get, 19 },
2771 { "npc", NULL, spufs_npc_get, 19 },