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/module.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 .owner = THIS_MODULE, \
153 .open = __fops ## _open, \
154 .release = spufs_attr_release, \
155 .read = spufs_attr_read, \
156 .write = spufs_attr_write, \
157 .llseek = generic_file_llseek, \
162 spufs_mem_open(struct inode *inode, struct file *file)
164 struct spufs_inode_info *i = SPUFS_I(inode);
165 struct spu_context *ctx = i->i_ctx;
167 mutex_lock(&ctx->mapping_lock);
168 file->private_data = ctx;
170 ctx->local_store = inode->i_mapping;
171 mutex_unlock(&ctx->mapping_lock);
176 spufs_mem_release(struct inode *inode, struct file *file)
178 struct spufs_inode_info *i = SPUFS_I(inode);
179 struct spu_context *ctx = i->i_ctx;
181 mutex_lock(&ctx->mapping_lock);
183 ctx->local_store = NULL;
184 mutex_unlock(&ctx->mapping_lock);
189 __spufs_mem_read(struct spu_context *ctx, char __user *buffer,
190 size_t size, loff_t *pos)
192 char *local_store = ctx->ops->get_ls(ctx);
193 return simple_read_from_buffer(buffer, size, pos, local_store,
198 spufs_mem_read(struct file *file, char __user *buffer,
199 size_t size, loff_t *pos)
201 struct spu_context *ctx = file->private_data;
204 ret = spu_acquire(ctx);
207 ret = __spufs_mem_read(ctx, buffer, size, pos);
214 spufs_mem_write(struct file *file, const char __user *buffer,
215 size_t size, loff_t *ppos)
217 struct spu_context *ctx = file->private_data;
225 ret = spu_acquire(ctx);
229 local_store = ctx->ops->get_ls(ctx);
230 size = simple_write_to_buffer(local_store, LS_SIZE, ppos, buffer, size);
237 spufs_mem_mmap_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
239 struct spu_context *ctx = vma->vm_file->private_data;
240 unsigned long address = (unsigned long)vmf->virtual_address;
241 unsigned long pfn, offset;
243 #ifdef CONFIG_SPU_FS_64K_LS
244 struct spu_state *csa = &ctx->csa;
247 /* Check what page size we are using */
248 psize = get_slice_psize(vma->vm_mm, address);
250 /* Some sanity checking */
251 BUG_ON(csa->use_big_pages != (psize == MMU_PAGE_64K));
253 /* Wow, 64K, cool, we need to align the address though */
254 if (csa->use_big_pages) {
255 BUG_ON(vma->vm_start & 0xffff);
256 address &= ~0xfffful;
258 #endif /* CONFIG_SPU_FS_64K_LS */
260 offset = vmf->pgoff << PAGE_SHIFT;
261 if (offset >= LS_SIZE)
262 return VM_FAULT_SIGBUS;
264 pr_debug("spufs_mem_mmap_fault address=0x%lx, offset=0x%lx\n",
267 if (spu_acquire(ctx))
268 return VM_FAULT_NOPAGE;
270 if (ctx->state == SPU_STATE_SAVED) {
271 vma->vm_page_prot = pgprot_cached(vma->vm_page_prot);
272 pfn = vmalloc_to_pfn(ctx->csa.lscsa->ls + offset);
274 vma->vm_page_prot = pgprot_noncached_wc(vma->vm_page_prot);
275 pfn = (ctx->spu->local_store_phys + offset) >> PAGE_SHIFT;
277 vm_insert_pfn(vma, address, pfn);
281 return VM_FAULT_NOPAGE;
284 static int spufs_mem_mmap_access(struct vm_area_struct *vma,
285 unsigned long address,
286 void *buf, int len, int write)
288 struct spu_context *ctx = vma->vm_file->private_data;
289 unsigned long offset = address - vma->vm_start;
292 if (write && !(vma->vm_flags & VM_WRITE))
294 if (spu_acquire(ctx))
296 if ((offset + len) > vma->vm_end)
297 len = vma->vm_end - offset;
298 local_store = ctx->ops->get_ls(ctx);
300 memcpy_toio(local_store + offset, buf, len);
302 memcpy_fromio(buf, local_store + offset, len);
307 static const struct vm_operations_struct spufs_mem_mmap_vmops = {
308 .fault = spufs_mem_mmap_fault,
309 .access = spufs_mem_mmap_access,
312 static int spufs_mem_mmap(struct file *file, struct vm_area_struct *vma)
314 #ifdef CONFIG_SPU_FS_64K_LS
315 struct spu_context *ctx = file->private_data;
316 struct spu_state *csa = &ctx->csa;
318 /* Sanity check VMA alignment */
319 if (csa->use_big_pages) {
320 pr_debug("spufs_mem_mmap 64K, start=0x%lx, end=0x%lx,"
321 " pgoff=0x%lx\n", vma->vm_start, vma->vm_end,
323 if (vma->vm_start & 0xffff)
325 if (vma->vm_pgoff & 0xf)
328 #endif /* CONFIG_SPU_FS_64K_LS */
330 if (!(vma->vm_flags & VM_SHARED))
333 vma->vm_flags |= VM_IO | VM_PFNMAP;
334 vma->vm_page_prot = pgprot_noncached_wc(vma->vm_page_prot);
336 vma->vm_ops = &spufs_mem_mmap_vmops;
340 #ifdef CONFIG_SPU_FS_64K_LS
341 static unsigned long spufs_get_unmapped_area(struct file *file,
342 unsigned long addr, unsigned long len, unsigned long pgoff,
345 struct spu_context *ctx = file->private_data;
346 struct spu_state *csa = &ctx->csa;
348 /* If not using big pages, fallback to normal MM g_u_a */
349 if (!csa->use_big_pages)
350 return current->mm->get_unmapped_area(file, addr, len,
353 /* Else, try to obtain a 64K pages slice */
354 return slice_get_unmapped_area(addr, len, flags,
357 #endif /* CONFIG_SPU_FS_64K_LS */
359 static const struct file_operations spufs_mem_fops = {
360 .open = spufs_mem_open,
361 .release = spufs_mem_release,
362 .read = spufs_mem_read,
363 .write = spufs_mem_write,
364 .llseek = generic_file_llseek,
365 .mmap = spufs_mem_mmap,
366 #ifdef CONFIG_SPU_FS_64K_LS
367 .get_unmapped_area = spufs_get_unmapped_area,
371 static int spufs_ps_fault(struct vm_area_struct *vma,
372 struct vm_fault *vmf,
373 unsigned long ps_offs,
374 unsigned long ps_size)
376 struct spu_context *ctx = vma->vm_file->private_data;
377 unsigned long area, offset = vmf->pgoff << PAGE_SHIFT;
380 spu_context_nospu_trace(spufs_ps_fault__enter, ctx);
382 if (offset >= ps_size)
383 return VM_FAULT_SIGBUS;
385 if (fatal_signal_pending(current))
386 return VM_FAULT_SIGBUS;
389 * Because we release the mmap_sem, the context may be destroyed while
390 * we're in spu_wait. Grab an extra reference so it isn't destroyed
393 get_spu_context(ctx);
396 * We have to wait for context to be loaded before we have
397 * pages to hand out to the user, but we don't want to wait
398 * with the mmap_sem held.
399 * It is possible to drop the mmap_sem here, but then we need
400 * to return VM_FAULT_NOPAGE because the mappings may have
403 if (spu_acquire(ctx))
406 if (ctx->state == SPU_STATE_SAVED) {
407 up_read(¤t->mm->mmap_sem);
408 spu_context_nospu_trace(spufs_ps_fault__sleep, ctx);
409 ret = spufs_wait(ctx->run_wq, ctx->state == SPU_STATE_RUNNABLE);
410 spu_context_trace(spufs_ps_fault__wake, ctx, ctx->spu);
411 down_read(¤t->mm->mmap_sem);
413 area = ctx->spu->problem_phys + ps_offs;
414 vm_insert_pfn(vma, (unsigned long)vmf->virtual_address,
415 (area + offset) >> PAGE_SHIFT);
416 spu_context_trace(spufs_ps_fault__insert, ctx, ctx->spu);
423 put_spu_context(ctx);
424 return VM_FAULT_NOPAGE;
428 static int spufs_cntl_mmap_fault(struct vm_area_struct *vma,
429 struct vm_fault *vmf)
431 return spufs_ps_fault(vma, vmf, 0x4000, SPUFS_CNTL_MAP_SIZE);
434 static const struct vm_operations_struct spufs_cntl_mmap_vmops = {
435 .fault = spufs_cntl_mmap_fault,
439 * mmap support for problem state control area [0x4000 - 0x4fff].
441 static int spufs_cntl_mmap(struct file *file, struct vm_area_struct *vma)
443 if (!(vma->vm_flags & VM_SHARED))
446 vma->vm_flags |= VM_IO | VM_PFNMAP;
447 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
449 vma->vm_ops = &spufs_cntl_mmap_vmops;
452 #else /* SPUFS_MMAP_4K */
453 #define spufs_cntl_mmap NULL
454 #endif /* !SPUFS_MMAP_4K */
456 static int spufs_cntl_get(void *data, u64 *val)
458 struct spu_context *ctx = data;
461 ret = spu_acquire(ctx);
464 *val = ctx->ops->status_read(ctx);
470 static int spufs_cntl_set(void *data, u64 val)
472 struct spu_context *ctx = data;
475 ret = spu_acquire(ctx);
478 ctx->ops->runcntl_write(ctx, val);
484 static int spufs_cntl_open(struct inode *inode, struct file *file)
486 struct spufs_inode_info *i = SPUFS_I(inode);
487 struct spu_context *ctx = i->i_ctx;
489 mutex_lock(&ctx->mapping_lock);
490 file->private_data = ctx;
492 ctx->cntl = inode->i_mapping;
493 mutex_unlock(&ctx->mapping_lock);
494 return simple_attr_open(inode, file, spufs_cntl_get,
495 spufs_cntl_set, "0x%08lx");
499 spufs_cntl_release(struct inode *inode, struct file *file)
501 struct spufs_inode_info *i = SPUFS_I(inode);
502 struct spu_context *ctx = i->i_ctx;
504 simple_attr_release(inode, file);
506 mutex_lock(&ctx->mapping_lock);
509 mutex_unlock(&ctx->mapping_lock);
513 static const struct file_operations spufs_cntl_fops = {
514 .open = spufs_cntl_open,
515 .release = spufs_cntl_release,
516 .read = simple_attr_read,
517 .write = simple_attr_write,
518 .llseek = generic_file_llseek,
519 .mmap = spufs_cntl_mmap,
523 spufs_regs_open(struct inode *inode, struct file *file)
525 struct spufs_inode_info *i = SPUFS_I(inode);
526 file->private_data = i->i_ctx;
531 __spufs_regs_read(struct spu_context *ctx, char __user *buffer,
532 size_t size, loff_t *pos)
534 struct spu_lscsa *lscsa = ctx->csa.lscsa;
535 return simple_read_from_buffer(buffer, size, pos,
536 lscsa->gprs, sizeof lscsa->gprs);
540 spufs_regs_read(struct file *file, char __user *buffer,
541 size_t size, loff_t *pos)
544 struct spu_context *ctx = file->private_data;
546 /* pre-check for file position: if we'd return EOF, there's no point
547 * causing a deschedule */
548 if (*pos >= sizeof(ctx->csa.lscsa->gprs))
551 ret = spu_acquire_saved(ctx);
554 ret = __spufs_regs_read(ctx, buffer, size, pos);
555 spu_release_saved(ctx);
560 spufs_regs_write(struct file *file, const char __user *buffer,
561 size_t size, loff_t *pos)
563 struct spu_context *ctx = file->private_data;
564 struct spu_lscsa *lscsa = ctx->csa.lscsa;
567 if (*pos >= sizeof(lscsa->gprs))
570 ret = spu_acquire_saved(ctx);
574 size = simple_write_to_buffer(lscsa->gprs, sizeof(lscsa->gprs), pos,
577 spu_release_saved(ctx);
581 static const struct file_operations spufs_regs_fops = {
582 .open = spufs_regs_open,
583 .read = spufs_regs_read,
584 .write = spufs_regs_write,
585 .llseek = generic_file_llseek,
589 __spufs_fpcr_read(struct spu_context *ctx, char __user * buffer,
590 size_t size, loff_t * pos)
592 struct spu_lscsa *lscsa = ctx->csa.lscsa;
593 return simple_read_from_buffer(buffer, size, pos,
594 &lscsa->fpcr, sizeof(lscsa->fpcr));
598 spufs_fpcr_read(struct file *file, char __user * buffer,
599 size_t size, loff_t * pos)
602 struct spu_context *ctx = file->private_data;
604 ret = spu_acquire_saved(ctx);
607 ret = __spufs_fpcr_read(ctx, buffer, size, pos);
608 spu_release_saved(ctx);
613 spufs_fpcr_write(struct file *file, const char __user * buffer,
614 size_t size, loff_t * pos)
616 struct spu_context *ctx = file->private_data;
617 struct spu_lscsa *lscsa = ctx->csa.lscsa;
620 if (*pos >= sizeof(lscsa->fpcr))
623 ret = spu_acquire_saved(ctx);
627 size = simple_write_to_buffer(&lscsa->fpcr, sizeof(lscsa->fpcr), pos,
630 spu_release_saved(ctx);
634 static const struct file_operations spufs_fpcr_fops = {
635 .open = spufs_regs_open,
636 .read = spufs_fpcr_read,
637 .write = spufs_fpcr_write,
638 .llseek = generic_file_llseek,
641 /* generic open function for all pipe-like files */
642 static int spufs_pipe_open(struct inode *inode, struct file *file)
644 struct spufs_inode_info *i = SPUFS_I(inode);
645 file->private_data = i->i_ctx;
647 return nonseekable_open(inode, file);
651 * Read as many bytes from the mailbox as possible, until
652 * one of the conditions becomes true:
654 * - no more data available in the mailbox
655 * - end of the user provided buffer
656 * - end of the mapped area
658 static ssize_t spufs_mbox_read(struct file *file, char __user *buf,
659 size_t len, loff_t *pos)
661 struct spu_context *ctx = file->private_data;
662 u32 mbox_data, __user *udata;
668 if (!access_ok(VERIFY_WRITE, buf, len))
671 udata = (void __user *)buf;
673 count = spu_acquire(ctx);
677 for (count = 0; (count + 4) <= len; count += 4, udata++) {
679 ret = ctx->ops->mbox_read(ctx, &mbox_data);
684 * at the end of the mapped area, we can fault
685 * but still need to return the data we have
686 * read successfully so far.
688 ret = __put_user(mbox_data, udata);
703 static const struct file_operations spufs_mbox_fops = {
704 .open = spufs_pipe_open,
705 .read = spufs_mbox_read,
709 static ssize_t spufs_mbox_stat_read(struct file *file, char __user *buf,
710 size_t len, loff_t *pos)
712 struct spu_context *ctx = file->private_data;
719 ret = spu_acquire(ctx);
723 mbox_stat = ctx->ops->mbox_stat_read(ctx) & 0xff;
727 if (copy_to_user(buf, &mbox_stat, sizeof mbox_stat))
733 static const struct file_operations spufs_mbox_stat_fops = {
734 .open = spufs_pipe_open,
735 .read = spufs_mbox_stat_read,
739 /* low-level ibox access function */
740 size_t spu_ibox_read(struct spu_context *ctx, u32 *data)
742 return ctx->ops->ibox_read(ctx, data);
745 static int spufs_ibox_fasync(int fd, struct file *file, int on)
747 struct spu_context *ctx = file->private_data;
749 return fasync_helper(fd, file, on, &ctx->ibox_fasync);
752 /* interrupt-level ibox callback function. */
753 void spufs_ibox_callback(struct spu *spu)
755 struct spu_context *ctx = spu->ctx;
760 wake_up_all(&ctx->ibox_wq);
761 kill_fasync(&ctx->ibox_fasync, SIGIO, POLLIN);
765 * Read as many bytes from the interrupt mailbox as possible, until
766 * one of the conditions becomes true:
768 * - no more data available in the mailbox
769 * - end of the user provided buffer
770 * - end of the mapped area
772 * If the file is opened without O_NONBLOCK, we wait here until
773 * any data is available, but return when we have been able to
776 static ssize_t spufs_ibox_read(struct file *file, char __user *buf,
777 size_t len, loff_t *pos)
779 struct spu_context *ctx = file->private_data;
780 u32 ibox_data, __user *udata;
786 if (!access_ok(VERIFY_WRITE, buf, len))
789 udata = (void __user *)buf;
791 count = spu_acquire(ctx);
795 /* wait only for the first element */
797 if (file->f_flags & O_NONBLOCK) {
798 if (!spu_ibox_read(ctx, &ibox_data)) {
803 count = spufs_wait(ctx->ibox_wq, spu_ibox_read(ctx, &ibox_data));
808 /* if we can't write at all, return -EFAULT */
809 count = __put_user(ibox_data, udata);
813 for (count = 4, udata++; (count + 4) <= len; count += 4, udata++) {
815 ret = ctx->ops->ibox_read(ctx, &ibox_data);
819 * at the end of the mapped area, we can fault
820 * but still need to return the data we have
821 * read successfully so far.
823 ret = __put_user(ibox_data, udata);
834 static unsigned int spufs_ibox_poll(struct file *file, poll_table *wait)
836 struct spu_context *ctx = file->private_data;
839 poll_wait(file, &ctx->ibox_wq, wait);
842 * For now keep this uninterruptible and also ignore the rule
843 * that poll should not sleep. Will be fixed later.
845 mutex_lock(&ctx->state_mutex);
846 mask = ctx->ops->mbox_stat_poll(ctx, POLLIN | POLLRDNORM);
852 static const struct file_operations spufs_ibox_fops = {
853 .open = spufs_pipe_open,
854 .read = spufs_ibox_read,
855 .poll = spufs_ibox_poll,
856 .fasync = spufs_ibox_fasync,
860 static ssize_t spufs_ibox_stat_read(struct file *file, char __user *buf,
861 size_t len, loff_t *pos)
863 struct spu_context *ctx = file->private_data;
870 ret = spu_acquire(ctx);
873 ibox_stat = (ctx->ops->mbox_stat_read(ctx) >> 16) & 0xff;
876 if (copy_to_user(buf, &ibox_stat, sizeof ibox_stat))
882 static const struct file_operations spufs_ibox_stat_fops = {
883 .open = spufs_pipe_open,
884 .read = spufs_ibox_stat_read,
888 /* low-level mailbox write */
889 size_t spu_wbox_write(struct spu_context *ctx, u32 data)
891 return ctx->ops->wbox_write(ctx, data);
894 static int spufs_wbox_fasync(int fd, struct file *file, int on)
896 struct spu_context *ctx = file->private_data;
899 ret = fasync_helper(fd, file, on, &ctx->wbox_fasync);
904 /* interrupt-level wbox callback function. */
905 void spufs_wbox_callback(struct spu *spu)
907 struct spu_context *ctx = spu->ctx;
912 wake_up_all(&ctx->wbox_wq);
913 kill_fasync(&ctx->wbox_fasync, SIGIO, POLLOUT);
917 * Write as many bytes to the interrupt mailbox as possible, until
918 * one of the conditions becomes true:
920 * - the mailbox is full
921 * - end of the user provided buffer
922 * - end of the mapped area
924 * If the file is opened without O_NONBLOCK, we wait here until
925 * space is availabyl, but return when we have been able to
928 static ssize_t spufs_wbox_write(struct file *file, const char __user *buf,
929 size_t len, loff_t *pos)
931 struct spu_context *ctx = file->private_data;
932 u32 wbox_data, __user *udata;
938 udata = (void __user *)buf;
939 if (!access_ok(VERIFY_READ, buf, len))
942 if (__get_user(wbox_data, udata))
945 count = spu_acquire(ctx);
950 * make sure we can at least write one element, by waiting
951 * in case of !O_NONBLOCK
954 if (file->f_flags & O_NONBLOCK) {
955 if (!spu_wbox_write(ctx, wbox_data)) {
960 count = spufs_wait(ctx->wbox_wq, spu_wbox_write(ctx, wbox_data));
966 /* write as much as possible */
967 for (count = 4, udata++; (count + 4) <= len; count += 4, udata++) {
969 ret = __get_user(wbox_data, udata);
973 ret = spu_wbox_write(ctx, wbox_data);
984 static unsigned int spufs_wbox_poll(struct file *file, poll_table *wait)
986 struct spu_context *ctx = file->private_data;
989 poll_wait(file, &ctx->wbox_wq, wait);
992 * For now keep this uninterruptible and also ignore the rule
993 * that poll should not sleep. Will be fixed later.
995 mutex_lock(&ctx->state_mutex);
996 mask = ctx->ops->mbox_stat_poll(ctx, POLLOUT | POLLWRNORM);
1002 static const struct file_operations spufs_wbox_fops = {
1003 .open = spufs_pipe_open,
1004 .write = spufs_wbox_write,
1005 .poll = spufs_wbox_poll,
1006 .fasync = spufs_wbox_fasync,
1007 .llseek = no_llseek,
1010 static ssize_t spufs_wbox_stat_read(struct file *file, char __user *buf,
1011 size_t len, loff_t *pos)
1013 struct spu_context *ctx = file->private_data;
1020 ret = spu_acquire(ctx);
1023 wbox_stat = (ctx->ops->mbox_stat_read(ctx) >> 8) & 0xff;
1026 if (copy_to_user(buf, &wbox_stat, sizeof wbox_stat))
1032 static const struct file_operations spufs_wbox_stat_fops = {
1033 .open = spufs_pipe_open,
1034 .read = spufs_wbox_stat_read,
1035 .llseek = no_llseek,
1038 static int spufs_signal1_open(struct inode *inode, struct file *file)
1040 struct spufs_inode_info *i = SPUFS_I(inode);
1041 struct spu_context *ctx = i->i_ctx;
1043 mutex_lock(&ctx->mapping_lock);
1044 file->private_data = ctx;
1045 if (!i->i_openers++)
1046 ctx->signal1 = inode->i_mapping;
1047 mutex_unlock(&ctx->mapping_lock);
1048 return nonseekable_open(inode, file);
1052 spufs_signal1_release(struct inode *inode, struct file *file)
1054 struct spufs_inode_info *i = SPUFS_I(inode);
1055 struct spu_context *ctx = i->i_ctx;
1057 mutex_lock(&ctx->mapping_lock);
1058 if (!--i->i_openers)
1059 ctx->signal1 = NULL;
1060 mutex_unlock(&ctx->mapping_lock);
1064 static ssize_t __spufs_signal1_read(struct spu_context *ctx, char __user *buf,
1065 size_t len, loff_t *pos)
1073 if (ctx->csa.spu_chnlcnt_RW[3]) {
1074 data = ctx->csa.spu_chnldata_RW[3];
1081 if (copy_to_user(buf, &data, 4))
1088 static ssize_t spufs_signal1_read(struct file *file, char __user *buf,
1089 size_t len, loff_t *pos)
1092 struct spu_context *ctx = file->private_data;
1094 ret = spu_acquire_saved(ctx);
1097 ret = __spufs_signal1_read(ctx, buf, len, pos);
1098 spu_release_saved(ctx);
1103 static ssize_t spufs_signal1_write(struct file *file, const char __user *buf,
1104 size_t len, loff_t *pos)
1106 struct spu_context *ctx;
1110 ctx = file->private_data;
1115 if (copy_from_user(&data, buf, 4))
1118 ret = spu_acquire(ctx);
1121 ctx->ops->signal1_write(ctx, data);
1128 spufs_signal1_mmap_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
1130 #if SPUFS_SIGNAL_MAP_SIZE == 0x1000
1131 return spufs_ps_fault(vma, vmf, 0x14000, SPUFS_SIGNAL_MAP_SIZE);
1132 #elif SPUFS_SIGNAL_MAP_SIZE == 0x10000
1133 /* For 64k pages, both signal1 and signal2 can be used to mmap the whole
1134 * signal 1 and 2 area
1136 return spufs_ps_fault(vma, vmf, 0x10000, SPUFS_SIGNAL_MAP_SIZE);
1138 #error unsupported page size
1142 static const struct vm_operations_struct spufs_signal1_mmap_vmops = {
1143 .fault = spufs_signal1_mmap_fault,
1146 static int spufs_signal1_mmap(struct file *file, struct vm_area_struct *vma)
1148 if (!(vma->vm_flags & VM_SHARED))
1151 vma->vm_flags |= VM_IO | VM_PFNMAP;
1152 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
1154 vma->vm_ops = &spufs_signal1_mmap_vmops;
1158 static const struct file_operations spufs_signal1_fops = {
1159 .open = spufs_signal1_open,
1160 .release = spufs_signal1_release,
1161 .read = spufs_signal1_read,
1162 .write = spufs_signal1_write,
1163 .mmap = spufs_signal1_mmap,
1164 .llseek = no_llseek,
1167 static const struct file_operations spufs_signal1_nosched_fops = {
1168 .open = spufs_signal1_open,
1169 .release = spufs_signal1_release,
1170 .write = spufs_signal1_write,
1171 .mmap = spufs_signal1_mmap,
1172 .llseek = no_llseek,
1175 static int spufs_signal2_open(struct inode *inode, struct file *file)
1177 struct spufs_inode_info *i = SPUFS_I(inode);
1178 struct spu_context *ctx = i->i_ctx;
1180 mutex_lock(&ctx->mapping_lock);
1181 file->private_data = ctx;
1182 if (!i->i_openers++)
1183 ctx->signal2 = inode->i_mapping;
1184 mutex_unlock(&ctx->mapping_lock);
1185 return nonseekable_open(inode, file);
1189 spufs_signal2_release(struct inode *inode, struct file *file)
1191 struct spufs_inode_info *i = SPUFS_I(inode);
1192 struct spu_context *ctx = i->i_ctx;
1194 mutex_lock(&ctx->mapping_lock);
1195 if (!--i->i_openers)
1196 ctx->signal2 = NULL;
1197 mutex_unlock(&ctx->mapping_lock);
1201 static ssize_t __spufs_signal2_read(struct spu_context *ctx, char __user *buf,
1202 size_t len, loff_t *pos)
1210 if (ctx->csa.spu_chnlcnt_RW[4]) {
1211 data = ctx->csa.spu_chnldata_RW[4];
1218 if (copy_to_user(buf, &data, 4))
1225 static ssize_t spufs_signal2_read(struct file *file, char __user *buf,
1226 size_t len, loff_t *pos)
1228 struct spu_context *ctx = file->private_data;
1231 ret = spu_acquire_saved(ctx);
1234 ret = __spufs_signal2_read(ctx, buf, len, pos);
1235 spu_release_saved(ctx);
1240 static ssize_t spufs_signal2_write(struct file *file, const char __user *buf,
1241 size_t len, loff_t *pos)
1243 struct spu_context *ctx;
1247 ctx = file->private_data;
1252 if (copy_from_user(&data, buf, 4))
1255 ret = spu_acquire(ctx);
1258 ctx->ops->signal2_write(ctx, data);
1266 spufs_signal2_mmap_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
1268 #if SPUFS_SIGNAL_MAP_SIZE == 0x1000
1269 return spufs_ps_fault(vma, vmf, 0x1c000, SPUFS_SIGNAL_MAP_SIZE);
1270 #elif SPUFS_SIGNAL_MAP_SIZE == 0x10000
1271 /* For 64k pages, both signal1 and signal2 can be used to mmap the whole
1272 * signal 1 and 2 area
1274 return spufs_ps_fault(vma, vmf, 0x10000, SPUFS_SIGNAL_MAP_SIZE);
1276 #error unsupported page size
1280 static const struct vm_operations_struct spufs_signal2_mmap_vmops = {
1281 .fault = spufs_signal2_mmap_fault,
1284 static int spufs_signal2_mmap(struct file *file, struct vm_area_struct *vma)
1286 if (!(vma->vm_flags & VM_SHARED))
1289 vma->vm_flags |= VM_IO | VM_PFNMAP;
1290 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
1292 vma->vm_ops = &spufs_signal2_mmap_vmops;
1295 #else /* SPUFS_MMAP_4K */
1296 #define spufs_signal2_mmap NULL
1297 #endif /* !SPUFS_MMAP_4K */
1299 static const struct file_operations spufs_signal2_fops = {
1300 .open = spufs_signal2_open,
1301 .release = spufs_signal2_release,
1302 .read = spufs_signal2_read,
1303 .write = spufs_signal2_write,
1304 .mmap = spufs_signal2_mmap,
1305 .llseek = no_llseek,
1308 static const struct file_operations spufs_signal2_nosched_fops = {
1309 .open = spufs_signal2_open,
1310 .release = spufs_signal2_release,
1311 .write = spufs_signal2_write,
1312 .mmap = spufs_signal2_mmap,
1313 .llseek = no_llseek,
1317 * This is a wrapper around DEFINE_SIMPLE_ATTRIBUTE which does the
1318 * work of acquiring (or not) the SPU context before calling through
1319 * to the actual get routine. The set routine is called directly.
1321 #define SPU_ATTR_NOACQUIRE 0
1322 #define SPU_ATTR_ACQUIRE 1
1323 #define SPU_ATTR_ACQUIRE_SAVED 2
1325 #define DEFINE_SPUFS_ATTRIBUTE(__name, __get, __set, __fmt, __acquire) \
1326 static int __##__get(void *data, u64 *val) \
1328 struct spu_context *ctx = data; \
1331 if (__acquire == SPU_ATTR_ACQUIRE) { \
1332 ret = spu_acquire(ctx); \
1335 *val = __get(ctx); \
1337 } else if (__acquire == SPU_ATTR_ACQUIRE_SAVED) { \
1338 ret = spu_acquire_saved(ctx); \
1341 *val = __get(ctx); \
1342 spu_release_saved(ctx); \
1344 *val = __get(ctx); \
1348 DEFINE_SPUFS_SIMPLE_ATTRIBUTE(__name, __##__get, __set, __fmt);
1350 static int spufs_signal1_type_set(void *data, u64 val)
1352 struct spu_context *ctx = data;
1355 ret = spu_acquire(ctx);
1358 ctx->ops->signal1_type_set(ctx, val);
1364 static u64 spufs_signal1_type_get(struct spu_context *ctx)
1366 return ctx->ops->signal1_type_get(ctx);
1368 DEFINE_SPUFS_ATTRIBUTE(spufs_signal1_type, spufs_signal1_type_get,
1369 spufs_signal1_type_set, "%llu\n", SPU_ATTR_ACQUIRE);
1372 static int spufs_signal2_type_set(void *data, u64 val)
1374 struct spu_context *ctx = data;
1377 ret = spu_acquire(ctx);
1380 ctx->ops->signal2_type_set(ctx, val);
1386 static u64 spufs_signal2_type_get(struct spu_context *ctx)
1388 return ctx->ops->signal2_type_get(ctx);
1390 DEFINE_SPUFS_ATTRIBUTE(spufs_signal2_type, spufs_signal2_type_get,
1391 spufs_signal2_type_set, "%llu\n", SPU_ATTR_ACQUIRE);
1395 spufs_mss_mmap_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
1397 return spufs_ps_fault(vma, vmf, 0x0000, SPUFS_MSS_MAP_SIZE);
1400 static const struct vm_operations_struct spufs_mss_mmap_vmops = {
1401 .fault = spufs_mss_mmap_fault,
1405 * mmap support for problem state MFC DMA area [0x0000 - 0x0fff].
1407 static int spufs_mss_mmap(struct file *file, struct vm_area_struct *vma)
1409 if (!(vma->vm_flags & VM_SHARED))
1412 vma->vm_flags |= VM_IO | VM_PFNMAP;
1413 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
1415 vma->vm_ops = &spufs_mss_mmap_vmops;
1418 #else /* SPUFS_MMAP_4K */
1419 #define spufs_mss_mmap NULL
1420 #endif /* !SPUFS_MMAP_4K */
1422 static int spufs_mss_open(struct inode *inode, struct file *file)
1424 struct spufs_inode_info *i = SPUFS_I(inode);
1425 struct spu_context *ctx = i->i_ctx;
1427 file->private_data = i->i_ctx;
1429 mutex_lock(&ctx->mapping_lock);
1430 if (!i->i_openers++)
1431 ctx->mss = inode->i_mapping;
1432 mutex_unlock(&ctx->mapping_lock);
1433 return nonseekable_open(inode, file);
1437 spufs_mss_release(struct inode *inode, struct file *file)
1439 struct spufs_inode_info *i = SPUFS_I(inode);
1440 struct spu_context *ctx = i->i_ctx;
1442 mutex_lock(&ctx->mapping_lock);
1443 if (!--i->i_openers)
1445 mutex_unlock(&ctx->mapping_lock);
1449 static const struct file_operations spufs_mss_fops = {
1450 .open = spufs_mss_open,
1451 .release = spufs_mss_release,
1452 .mmap = spufs_mss_mmap,
1453 .llseek = no_llseek,
1457 spufs_psmap_mmap_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
1459 return spufs_ps_fault(vma, vmf, 0x0000, SPUFS_PS_MAP_SIZE);
1462 static const struct vm_operations_struct spufs_psmap_mmap_vmops = {
1463 .fault = spufs_psmap_mmap_fault,
1467 * mmap support for full problem state area [0x00000 - 0x1ffff].
1469 static int spufs_psmap_mmap(struct file *file, struct vm_area_struct *vma)
1471 if (!(vma->vm_flags & VM_SHARED))
1474 vma->vm_flags |= VM_IO | VM_PFNMAP;
1475 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
1477 vma->vm_ops = &spufs_psmap_mmap_vmops;
1481 static int spufs_psmap_open(struct inode *inode, struct file *file)
1483 struct spufs_inode_info *i = SPUFS_I(inode);
1484 struct spu_context *ctx = i->i_ctx;
1486 mutex_lock(&ctx->mapping_lock);
1487 file->private_data = i->i_ctx;
1488 if (!i->i_openers++)
1489 ctx->psmap = inode->i_mapping;
1490 mutex_unlock(&ctx->mapping_lock);
1491 return nonseekable_open(inode, file);
1495 spufs_psmap_release(struct inode *inode, struct file *file)
1497 struct spufs_inode_info *i = SPUFS_I(inode);
1498 struct spu_context *ctx = i->i_ctx;
1500 mutex_lock(&ctx->mapping_lock);
1501 if (!--i->i_openers)
1503 mutex_unlock(&ctx->mapping_lock);
1507 static const struct file_operations spufs_psmap_fops = {
1508 .open = spufs_psmap_open,
1509 .release = spufs_psmap_release,
1510 .mmap = spufs_psmap_mmap,
1511 .llseek = no_llseek,
1517 spufs_mfc_mmap_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
1519 return spufs_ps_fault(vma, vmf, 0x3000, SPUFS_MFC_MAP_SIZE);
1522 static const struct vm_operations_struct spufs_mfc_mmap_vmops = {
1523 .fault = spufs_mfc_mmap_fault,
1527 * mmap support for problem state MFC DMA area [0x0000 - 0x0fff].
1529 static int spufs_mfc_mmap(struct file *file, struct vm_area_struct *vma)
1531 if (!(vma->vm_flags & VM_SHARED))
1534 vma->vm_flags |= VM_IO | VM_PFNMAP;
1535 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
1537 vma->vm_ops = &spufs_mfc_mmap_vmops;
1540 #else /* SPUFS_MMAP_4K */
1541 #define spufs_mfc_mmap NULL
1542 #endif /* !SPUFS_MMAP_4K */
1544 static int spufs_mfc_open(struct inode *inode, struct file *file)
1546 struct spufs_inode_info *i = SPUFS_I(inode);
1547 struct spu_context *ctx = i->i_ctx;
1549 /* we don't want to deal with DMA into other processes */
1550 if (ctx->owner != current->mm)
1553 if (atomic_read(&inode->i_count) != 1)
1556 mutex_lock(&ctx->mapping_lock);
1557 file->private_data = ctx;
1558 if (!i->i_openers++)
1559 ctx->mfc = inode->i_mapping;
1560 mutex_unlock(&ctx->mapping_lock);
1561 return nonseekable_open(inode, file);
1565 spufs_mfc_release(struct inode *inode, struct file *file)
1567 struct spufs_inode_info *i = SPUFS_I(inode);
1568 struct spu_context *ctx = i->i_ctx;
1570 mutex_lock(&ctx->mapping_lock);
1571 if (!--i->i_openers)
1573 mutex_unlock(&ctx->mapping_lock);
1577 /* interrupt-level mfc callback function. */
1578 void spufs_mfc_callback(struct spu *spu)
1580 struct spu_context *ctx = spu->ctx;
1585 wake_up_all(&ctx->mfc_wq);
1587 pr_debug("%s %s\n", __func__, spu->name);
1588 if (ctx->mfc_fasync) {
1589 u32 free_elements, tagstatus;
1592 /* no need for spu_acquire in interrupt context */
1593 free_elements = ctx->ops->get_mfc_free_elements(ctx);
1594 tagstatus = ctx->ops->read_mfc_tagstatus(ctx);
1597 if (free_elements & 0xffff)
1599 if (tagstatus & ctx->tagwait)
1602 kill_fasync(&ctx->mfc_fasync, SIGIO, mask);
1606 static int spufs_read_mfc_tagstatus(struct spu_context *ctx, u32 *status)
1608 /* See if there is one tag group is complete */
1609 /* FIXME we need locking around tagwait */
1610 *status = ctx->ops->read_mfc_tagstatus(ctx) & ctx->tagwait;
1611 ctx->tagwait &= ~*status;
1615 /* enable interrupt waiting for any tag group,
1616 may silently fail if interrupts are already enabled */
1617 ctx->ops->set_mfc_query(ctx, ctx->tagwait, 1);
1621 static ssize_t spufs_mfc_read(struct file *file, char __user *buffer,
1622 size_t size, loff_t *pos)
1624 struct spu_context *ctx = file->private_data;
1631 ret = spu_acquire(ctx);
1636 if (file->f_flags & O_NONBLOCK) {
1637 status = ctx->ops->read_mfc_tagstatus(ctx);
1638 if (!(status & ctx->tagwait))
1641 /* XXX(hch): shouldn't we clear ret here? */
1642 ctx->tagwait &= ~status;
1644 ret = spufs_wait(ctx->mfc_wq,
1645 spufs_read_mfc_tagstatus(ctx, &status));
1652 if (copy_to_user(buffer, &status, 4))
1659 static int spufs_check_valid_dma(struct mfc_dma_command *cmd)
1661 pr_debug("queueing DMA %x %llx %x %x %x\n", cmd->lsa,
1662 cmd->ea, cmd->size, cmd->tag, cmd->cmd);
1673 pr_debug("invalid DMA opcode %x\n", cmd->cmd);
1677 if ((cmd->lsa & 0xf) != (cmd->ea &0xf)) {
1678 pr_debug("invalid DMA alignment, ea %llx lsa %x\n",
1683 switch (cmd->size & 0xf) {
1704 pr_debug("invalid DMA alignment %x for size %x\n",
1705 cmd->lsa & 0xf, cmd->size);
1709 if (cmd->size > 16 * 1024) {
1710 pr_debug("invalid DMA size %x\n", cmd->size);
1714 if (cmd->tag & 0xfff0) {
1715 /* we reserve the higher tag numbers for kernel use */
1716 pr_debug("invalid DMA tag\n");
1721 /* not supported in this version */
1722 pr_debug("invalid DMA class\n");
1729 static int spu_send_mfc_command(struct spu_context *ctx,
1730 struct mfc_dma_command cmd,
1733 *error = ctx->ops->send_mfc_command(ctx, &cmd);
1734 if (*error == -EAGAIN) {
1735 /* wait for any tag group to complete
1736 so we have space for the new command */
1737 ctx->ops->set_mfc_query(ctx, ctx->tagwait, 1);
1738 /* try again, because the queue might be
1740 *error = ctx->ops->send_mfc_command(ctx, &cmd);
1741 if (*error == -EAGAIN)
1747 static ssize_t spufs_mfc_write(struct file *file, const char __user *buffer,
1748 size_t size, loff_t *pos)
1750 struct spu_context *ctx = file->private_data;
1751 struct mfc_dma_command cmd;
1754 if (size != sizeof cmd)
1758 if (copy_from_user(&cmd, buffer, sizeof cmd))
1761 ret = spufs_check_valid_dma(&cmd);
1765 ret = spu_acquire(ctx);
1769 ret = spufs_wait(ctx->run_wq, ctx->state == SPU_STATE_RUNNABLE);
1773 if (file->f_flags & O_NONBLOCK) {
1774 ret = ctx->ops->send_mfc_command(ctx, &cmd);
1777 ret = spufs_wait(ctx->mfc_wq,
1778 spu_send_mfc_command(ctx, cmd, &status));
1788 ctx->tagwait |= 1 << cmd.tag;
1797 static unsigned int spufs_mfc_poll(struct file *file,poll_table *wait)
1799 struct spu_context *ctx = file->private_data;
1800 u32 free_elements, tagstatus;
1803 poll_wait(file, &ctx->mfc_wq, wait);
1806 * For now keep this uninterruptible and also ignore the rule
1807 * that poll should not sleep. Will be fixed later.
1809 mutex_lock(&ctx->state_mutex);
1810 ctx->ops->set_mfc_query(ctx, ctx->tagwait, 2);
1811 free_elements = ctx->ops->get_mfc_free_elements(ctx);
1812 tagstatus = ctx->ops->read_mfc_tagstatus(ctx);
1816 if (free_elements & 0xffff)
1817 mask |= POLLOUT | POLLWRNORM;
1818 if (tagstatus & ctx->tagwait)
1819 mask |= POLLIN | POLLRDNORM;
1821 pr_debug("%s: free %d tagstatus %d tagwait %d\n", __func__,
1822 free_elements, tagstatus, ctx->tagwait);
1827 static int spufs_mfc_flush(struct file *file, fl_owner_t id)
1829 struct spu_context *ctx = file->private_data;
1832 ret = spu_acquire(ctx);
1836 /* this currently hangs */
1837 ret = spufs_wait(ctx->mfc_wq,
1838 ctx->ops->set_mfc_query(ctx, ctx->tagwait, 2));
1841 ret = spufs_wait(ctx->mfc_wq,
1842 ctx->ops->read_mfc_tagstatus(ctx) == ctx->tagwait);
1853 static int spufs_mfc_fsync(struct file *file, int datasync)
1855 return spufs_mfc_flush(file, NULL);
1858 static int spufs_mfc_fasync(int fd, struct file *file, int on)
1860 struct spu_context *ctx = file->private_data;
1862 return fasync_helper(fd, file, on, &ctx->mfc_fasync);
1865 static const struct file_operations spufs_mfc_fops = {
1866 .open = spufs_mfc_open,
1867 .release = spufs_mfc_release,
1868 .read = spufs_mfc_read,
1869 .write = spufs_mfc_write,
1870 .poll = spufs_mfc_poll,
1871 .flush = spufs_mfc_flush,
1872 .fsync = spufs_mfc_fsync,
1873 .fasync = spufs_mfc_fasync,
1874 .mmap = spufs_mfc_mmap,
1875 .llseek = no_llseek,
1878 static int spufs_npc_set(void *data, u64 val)
1880 struct spu_context *ctx = data;
1883 ret = spu_acquire(ctx);
1886 ctx->ops->npc_write(ctx, val);
1892 static u64 spufs_npc_get(struct spu_context *ctx)
1894 return ctx->ops->npc_read(ctx);
1896 DEFINE_SPUFS_ATTRIBUTE(spufs_npc_ops, spufs_npc_get, spufs_npc_set,
1897 "0x%llx\n", SPU_ATTR_ACQUIRE);
1899 static int spufs_decr_set(void *data, u64 val)
1901 struct spu_context *ctx = data;
1902 struct spu_lscsa *lscsa = ctx->csa.lscsa;
1905 ret = spu_acquire_saved(ctx);
1908 lscsa->decr.slot[0] = (u32) val;
1909 spu_release_saved(ctx);
1914 static u64 spufs_decr_get(struct spu_context *ctx)
1916 struct spu_lscsa *lscsa = ctx->csa.lscsa;
1917 return lscsa->decr.slot[0];
1919 DEFINE_SPUFS_ATTRIBUTE(spufs_decr_ops, spufs_decr_get, spufs_decr_set,
1920 "0x%llx\n", SPU_ATTR_ACQUIRE_SAVED);
1922 static int spufs_decr_status_set(void *data, u64 val)
1924 struct spu_context *ctx = data;
1927 ret = spu_acquire_saved(ctx);
1931 ctx->csa.priv2.mfc_control_RW |= MFC_CNTL_DECREMENTER_RUNNING;
1933 ctx->csa.priv2.mfc_control_RW &= ~MFC_CNTL_DECREMENTER_RUNNING;
1934 spu_release_saved(ctx);
1939 static u64 spufs_decr_status_get(struct spu_context *ctx)
1941 if (ctx->csa.priv2.mfc_control_RW & MFC_CNTL_DECREMENTER_RUNNING)
1942 return SPU_DECR_STATUS_RUNNING;
1946 DEFINE_SPUFS_ATTRIBUTE(spufs_decr_status_ops, spufs_decr_status_get,
1947 spufs_decr_status_set, "0x%llx\n",
1948 SPU_ATTR_ACQUIRE_SAVED);
1950 static int spufs_event_mask_set(void *data, u64 val)
1952 struct spu_context *ctx = data;
1953 struct spu_lscsa *lscsa = ctx->csa.lscsa;
1956 ret = spu_acquire_saved(ctx);
1959 lscsa->event_mask.slot[0] = (u32) val;
1960 spu_release_saved(ctx);
1965 static u64 spufs_event_mask_get(struct spu_context *ctx)
1967 struct spu_lscsa *lscsa = ctx->csa.lscsa;
1968 return lscsa->event_mask.slot[0];
1971 DEFINE_SPUFS_ATTRIBUTE(spufs_event_mask_ops, spufs_event_mask_get,
1972 spufs_event_mask_set, "0x%llx\n",
1973 SPU_ATTR_ACQUIRE_SAVED);
1975 static u64 spufs_event_status_get(struct spu_context *ctx)
1977 struct spu_state *state = &ctx->csa;
1979 stat = state->spu_chnlcnt_RW[0];
1981 return state->spu_chnldata_RW[0];
1984 DEFINE_SPUFS_ATTRIBUTE(spufs_event_status_ops, spufs_event_status_get,
1985 NULL, "0x%llx\n", SPU_ATTR_ACQUIRE_SAVED)
1987 static int spufs_srr0_set(void *data, u64 val)
1989 struct spu_context *ctx = data;
1990 struct spu_lscsa *lscsa = ctx->csa.lscsa;
1993 ret = spu_acquire_saved(ctx);
1996 lscsa->srr0.slot[0] = (u32) val;
1997 spu_release_saved(ctx);
2002 static u64 spufs_srr0_get(struct spu_context *ctx)
2004 struct spu_lscsa *lscsa = ctx->csa.lscsa;
2005 return lscsa->srr0.slot[0];
2007 DEFINE_SPUFS_ATTRIBUTE(spufs_srr0_ops, spufs_srr0_get, spufs_srr0_set,
2008 "0x%llx\n", SPU_ATTR_ACQUIRE_SAVED)
2010 static u64 spufs_id_get(struct spu_context *ctx)
2014 if (ctx->state == SPU_STATE_RUNNABLE)
2015 num = ctx->spu->number;
2017 num = (unsigned int)-1;
2021 DEFINE_SPUFS_ATTRIBUTE(spufs_id_ops, spufs_id_get, NULL, "0x%llx\n",
2024 static u64 spufs_object_id_get(struct spu_context *ctx)
2026 /* FIXME: Should there really be no locking here? */
2027 return ctx->object_id;
2030 static int spufs_object_id_set(void *data, u64 id)
2032 struct spu_context *ctx = data;
2033 ctx->object_id = id;
2038 DEFINE_SPUFS_ATTRIBUTE(spufs_object_id_ops, spufs_object_id_get,
2039 spufs_object_id_set, "0x%llx\n", SPU_ATTR_NOACQUIRE);
2041 static u64 spufs_lslr_get(struct spu_context *ctx)
2043 return ctx->csa.priv2.spu_lslr_RW;
2045 DEFINE_SPUFS_ATTRIBUTE(spufs_lslr_ops, spufs_lslr_get, NULL, "0x%llx\n",
2046 SPU_ATTR_ACQUIRE_SAVED);
2048 static int spufs_info_open(struct inode *inode, struct file *file)
2050 struct spufs_inode_info *i = SPUFS_I(inode);
2051 struct spu_context *ctx = i->i_ctx;
2052 file->private_data = ctx;
2056 static int spufs_caps_show(struct seq_file *s, void *private)
2058 struct spu_context *ctx = s->private;
2060 if (!(ctx->flags & SPU_CREATE_NOSCHED))
2061 seq_puts(s, "sched\n");
2062 if (!(ctx->flags & SPU_CREATE_ISOLATE))
2063 seq_puts(s, "step\n");
2067 static int spufs_caps_open(struct inode *inode, struct file *file)
2069 return single_open(file, spufs_caps_show, SPUFS_I(inode)->i_ctx);
2072 static const struct file_operations spufs_caps_fops = {
2073 .open = spufs_caps_open,
2075 .llseek = seq_lseek,
2076 .release = single_release,
2079 static ssize_t __spufs_mbox_info_read(struct spu_context *ctx,
2080 char __user *buf, size_t len, loff_t *pos)
2084 /* EOF if there's no entry in the mbox */
2085 if (!(ctx->csa.prob.mb_stat_R & 0x0000ff))
2088 data = ctx->csa.prob.pu_mb_R;
2090 return simple_read_from_buffer(buf, len, pos, &data, sizeof data);
2093 static ssize_t spufs_mbox_info_read(struct file *file, char __user *buf,
2094 size_t len, loff_t *pos)
2097 struct spu_context *ctx = file->private_data;
2099 if (!access_ok(VERIFY_WRITE, buf, len))
2102 ret = spu_acquire_saved(ctx);
2105 spin_lock(&ctx->csa.register_lock);
2106 ret = __spufs_mbox_info_read(ctx, buf, len, pos);
2107 spin_unlock(&ctx->csa.register_lock);
2108 spu_release_saved(ctx);
2113 static const struct file_operations spufs_mbox_info_fops = {
2114 .open = spufs_info_open,
2115 .read = spufs_mbox_info_read,
2116 .llseek = generic_file_llseek,
2119 static ssize_t __spufs_ibox_info_read(struct spu_context *ctx,
2120 char __user *buf, size_t len, loff_t *pos)
2124 /* EOF if there's no entry in the ibox */
2125 if (!(ctx->csa.prob.mb_stat_R & 0xff0000))
2128 data = ctx->csa.priv2.puint_mb_R;
2130 return simple_read_from_buffer(buf, len, pos, &data, sizeof data);
2133 static ssize_t spufs_ibox_info_read(struct file *file, char __user *buf,
2134 size_t len, loff_t *pos)
2136 struct spu_context *ctx = file->private_data;
2139 if (!access_ok(VERIFY_WRITE, buf, len))
2142 ret = spu_acquire_saved(ctx);
2145 spin_lock(&ctx->csa.register_lock);
2146 ret = __spufs_ibox_info_read(ctx, buf, len, pos);
2147 spin_unlock(&ctx->csa.register_lock);
2148 spu_release_saved(ctx);
2153 static const struct file_operations spufs_ibox_info_fops = {
2154 .open = spufs_info_open,
2155 .read = spufs_ibox_info_read,
2156 .llseek = generic_file_llseek,
2159 static ssize_t __spufs_wbox_info_read(struct spu_context *ctx,
2160 char __user *buf, size_t len, loff_t *pos)
2166 wbox_stat = ctx->csa.prob.mb_stat_R;
2167 cnt = 4 - ((wbox_stat & 0x00ff00) >> 8);
2168 for (i = 0; i < cnt; i++) {
2169 data[i] = ctx->csa.spu_mailbox_data[i];
2172 return simple_read_from_buffer(buf, len, pos, &data,
2176 static ssize_t spufs_wbox_info_read(struct file *file, char __user *buf,
2177 size_t len, loff_t *pos)
2179 struct spu_context *ctx = file->private_data;
2182 if (!access_ok(VERIFY_WRITE, buf, len))
2185 ret = spu_acquire_saved(ctx);
2188 spin_lock(&ctx->csa.register_lock);
2189 ret = __spufs_wbox_info_read(ctx, buf, len, pos);
2190 spin_unlock(&ctx->csa.register_lock);
2191 spu_release_saved(ctx);
2196 static const struct file_operations spufs_wbox_info_fops = {
2197 .open = spufs_info_open,
2198 .read = spufs_wbox_info_read,
2199 .llseek = generic_file_llseek,
2202 static ssize_t __spufs_dma_info_read(struct spu_context *ctx,
2203 char __user *buf, size_t len, loff_t *pos)
2205 struct spu_dma_info info;
2206 struct mfc_cq_sr *qp, *spuqp;
2209 info.dma_info_type = ctx->csa.priv2.spu_tag_status_query_RW;
2210 info.dma_info_mask = ctx->csa.lscsa->tag_mask.slot[0];
2211 info.dma_info_status = ctx->csa.spu_chnldata_RW[24];
2212 info.dma_info_stall_and_notify = ctx->csa.spu_chnldata_RW[25];
2213 info.dma_info_atomic_command_status = ctx->csa.spu_chnldata_RW[27];
2214 for (i = 0; i < 16; i++) {
2215 qp = &info.dma_info_command_data[i];
2216 spuqp = &ctx->csa.priv2.spuq[i];
2218 qp->mfc_cq_data0_RW = spuqp->mfc_cq_data0_RW;
2219 qp->mfc_cq_data1_RW = spuqp->mfc_cq_data1_RW;
2220 qp->mfc_cq_data2_RW = spuqp->mfc_cq_data2_RW;
2221 qp->mfc_cq_data3_RW = spuqp->mfc_cq_data3_RW;
2224 return simple_read_from_buffer(buf, len, pos, &info,
2228 static ssize_t spufs_dma_info_read(struct file *file, char __user *buf,
2229 size_t len, loff_t *pos)
2231 struct spu_context *ctx = file->private_data;
2234 if (!access_ok(VERIFY_WRITE, buf, len))
2237 ret = spu_acquire_saved(ctx);
2240 spin_lock(&ctx->csa.register_lock);
2241 ret = __spufs_dma_info_read(ctx, buf, len, pos);
2242 spin_unlock(&ctx->csa.register_lock);
2243 spu_release_saved(ctx);
2248 static const struct file_operations spufs_dma_info_fops = {
2249 .open = spufs_info_open,
2250 .read = spufs_dma_info_read,
2251 .llseek = no_llseek,
2254 static ssize_t __spufs_proxydma_info_read(struct spu_context *ctx,
2255 char __user *buf, size_t len, loff_t *pos)
2257 struct spu_proxydma_info info;
2258 struct mfc_cq_sr *qp, *puqp;
2259 int ret = sizeof info;
2265 if (!access_ok(VERIFY_WRITE, buf, len))
2268 info.proxydma_info_type = ctx->csa.prob.dma_querytype_RW;
2269 info.proxydma_info_mask = ctx->csa.prob.dma_querymask_RW;
2270 info.proxydma_info_status = ctx->csa.prob.dma_tagstatus_R;
2271 for (i = 0; i < 8; i++) {
2272 qp = &info.proxydma_info_command_data[i];
2273 puqp = &ctx->csa.priv2.puq[i];
2275 qp->mfc_cq_data0_RW = puqp->mfc_cq_data0_RW;
2276 qp->mfc_cq_data1_RW = puqp->mfc_cq_data1_RW;
2277 qp->mfc_cq_data2_RW = puqp->mfc_cq_data2_RW;
2278 qp->mfc_cq_data3_RW = puqp->mfc_cq_data3_RW;
2281 return simple_read_from_buffer(buf, len, pos, &info,
2285 static ssize_t spufs_proxydma_info_read(struct file *file, char __user *buf,
2286 size_t len, loff_t *pos)
2288 struct spu_context *ctx = file->private_data;
2291 ret = spu_acquire_saved(ctx);
2294 spin_lock(&ctx->csa.register_lock);
2295 ret = __spufs_proxydma_info_read(ctx, buf, len, pos);
2296 spin_unlock(&ctx->csa.register_lock);
2297 spu_release_saved(ctx);
2302 static const struct file_operations spufs_proxydma_info_fops = {
2303 .open = spufs_info_open,
2304 .read = spufs_proxydma_info_read,
2305 .llseek = no_llseek,
2308 static int spufs_show_tid(struct seq_file *s, void *private)
2310 struct spu_context *ctx = s->private;
2312 seq_printf(s, "%d\n", ctx->tid);
2316 static int spufs_tid_open(struct inode *inode, struct file *file)
2318 return single_open(file, spufs_show_tid, SPUFS_I(inode)->i_ctx);
2321 static const struct file_operations spufs_tid_fops = {
2322 .open = spufs_tid_open,
2324 .llseek = seq_lseek,
2325 .release = single_release,
2328 static const char *ctx_state_names[] = {
2329 "user", "system", "iowait", "loaded"
2332 static unsigned long long spufs_acct_time(struct spu_context *ctx,
2333 enum spu_utilization_state state)
2336 unsigned long long time = ctx->stats.times[state];
2339 * In general, utilization statistics are updated by the controlling
2340 * thread as the spu context moves through various well defined
2341 * state transitions, but if the context is lazily loaded its
2342 * utilization statistics are not updated as the controlling thread
2343 * is not tightly coupled with the execution of the spu context. We
2344 * calculate and apply the time delta from the last recorded state
2345 * of the spu context.
2347 if (ctx->spu && ctx->stats.util_state == state) {
2349 time += timespec_to_ns(&ts) - ctx->stats.tstamp;
2352 return time / NSEC_PER_MSEC;
2355 static unsigned long long spufs_slb_flts(struct spu_context *ctx)
2357 unsigned long long slb_flts = ctx->stats.slb_flt;
2359 if (ctx->state == SPU_STATE_RUNNABLE) {
2360 slb_flts += (ctx->spu->stats.slb_flt -
2361 ctx->stats.slb_flt_base);
2367 static unsigned long long spufs_class2_intrs(struct spu_context *ctx)
2369 unsigned long long class2_intrs = ctx->stats.class2_intr;
2371 if (ctx->state == SPU_STATE_RUNNABLE) {
2372 class2_intrs += (ctx->spu->stats.class2_intr -
2373 ctx->stats.class2_intr_base);
2376 return class2_intrs;
2380 static int spufs_show_stat(struct seq_file *s, void *private)
2382 struct spu_context *ctx = s->private;
2385 ret = spu_acquire(ctx);
2389 seq_printf(s, "%s %llu %llu %llu %llu "
2390 "%llu %llu %llu %llu %llu %llu %llu %llu\n",
2391 ctx_state_names[ctx->stats.util_state],
2392 spufs_acct_time(ctx, SPU_UTIL_USER),
2393 spufs_acct_time(ctx, SPU_UTIL_SYSTEM),
2394 spufs_acct_time(ctx, SPU_UTIL_IOWAIT),
2395 spufs_acct_time(ctx, SPU_UTIL_IDLE_LOADED),
2396 ctx->stats.vol_ctx_switch,
2397 ctx->stats.invol_ctx_switch,
2398 spufs_slb_flts(ctx),
2399 ctx->stats.hash_flt,
2402 spufs_class2_intrs(ctx),
2403 ctx->stats.libassist);
2408 static int spufs_stat_open(struct inode *inode, struct file *file)
2410 return single_open(file, spufs_show_stat, SPUFS_I(inode)->i_ctx);
2413 static const struct file_operations spufs_stat_fops = {
2414 .open = spufs_stat_open,
2416 .llseek = seq_lseek,
2417 .release = single_release,
2420 static inline int spufs_switch_log_used(struct spu_context *ctx)
2422 return (ctx->switch_log->head - ctx->switch_log->tail) %
2426 static inline int spufs_switch_log_avail(struct spu_context *ctx)
2428 return SWITCH_LOG_BUFSIZE - spufs_switch_log_used(ctx);
2431 static int spufs_switch_log_open(struct inode *inode, struct file *file)
2433 struct spu_context *ctx = SPUFS_I(inode)->i_ctx;
2436 rc = spu_acquire(ctx);
2440 if (ctx->switch_log) {
2445 ctx->switch_log = kmalloc(sizeof(struct switch_log) +
2446 SWITCH_LOG_BUFSIZE * sizeof(struct switch_log_entry),
2449 if (!ctx->switch_log) {
2454 ctx->switch_log->head = ctx->switch_log->tail = 0;
2455 init_waitqueue_head(&ctx->switch_log->wait);
2463 static int spufs_switch_log_release(struct inode *inode, struct file *file)
2465 struct spu_context *ctx = SPUFS_I(inode)->i_ctx;
2468 rc = spu_acquire(ctx);
2472 kfree(ctx->switch_log);
2473 ctx->switch_log = NULL;
2479 static int switch_log_sprint(struct spu_context *ctx, char *tbuf, int n)
2481 struct switch_log_entry *p;
2483 p = ctx->switch_log->log + ctx->switch_log->tail % SWITCH_LOG_BUFSIZE;
2485 return snprintf(tbuf, n, "%u.%09u %d %u %u %llu\n",
2486 (unsigned int) p->tstamp.tv_sec,
2487 (unsigned int) p->tstamp.tv_nsec,
2489 (unsigned int) p->type,
2490 (unsigned int) p->val,
2491 (unsigned long long) p->timebase);
2494 static ssize_t spufs_switch_log_read(struct file *file, char __user *buf,
2495 size_t len, loff_t *ppos)
2497 struct inode *inode = file->f_path.dentry->d_inode;
2498 struct spu_context *ctx = SPUFS_I(inode)->i_ctx;
2499 int error = 0, cnt = 0;
2504 error = spu_acquire(ctx);
2512 if (spufs_switch_log_used(ctx) == 0) {
2514 /* If there's data ready to go, we can
2515 * just return straight away */
2518 } else if (file->f_flags & O_NONBLOCK) {
2523 /* spufs_wait will drop the mutex and
2524 * re-acquire, but since we're in read(), the
2525 * file cannot be _released (and so
2526 * ctx->switch_log is stable).
2528 error = spufs_wait(ctx->switch_log->wait,
2529 spufs_switch_log_used(ctx) > 0);
2531 /* On error, spufs_wait returns without the
2532 * state mutex held */
2536 /* We may have had entries read from underneath
2537 * us while we dropped the mutex in spufs_wait,
2539 if (spufs_switch_log_used(ctx) == 0)
2544 width = switch_log_sprint(ctx, tbuf, sizeof(tbuf));
2546 ctx->switch_log->tail =
2547 (ctx->switch_log->tail + 1) %
2550 /* If the record is greater than space available return
2551 * partial buffer (so far) */
2554 error = copy_to_user(buf + cnt, tbuf, width);
2562 return cnt == 0 ? error : cnt;
2565 static unsigned int spufs_switch_log_poll(struct file *file, poll_table *wait)
2567 struct inode *inode = file->f_path.dentry->d_inode;
2568 struct spu_context *ctx = SPUFS_I(inode)->i_ctx;
2569 unsigned int mask = 0;
2572 poll_wait(file, &ctx->switch_log->wait, wait);
2574 rc = spu_acquire(ctx);
2578 if (spufs_switch_log_used(ctx) > 0)
2586 static const struct file_operations spufs_switch_log_fops = {
2587 .owner = THIS_MODULE,
2588 .open = spufs_switch_log_open,
2589 .read = spufs_switch_log_read,
2590 .poll = spufs_switch_log_poll,
2591 .release = spufs_switch_log_release,
2592 .llseek = no_llseek,
2596 * Log a context switch event to a switch log reader.
2598 * Must be called with ctx->state_mutex held.
2600 void spu_switch_log_notify(struct spu *spu, struct spu_context *ctx,
2603 if (!ctx->switch_log)
2606 if (spufs_switch_log_avail(ctx) > 1) {
2607 struct switch_log_entry *p;
2609 p = ctx->switch_log->log + ctx->switch_log->head;
2610 ktime_get_ts(&p->tstamp);
2611 p->timebase = get_tb();
2612 p->spu_id = spu ? spu->number : -1;
2616 ctx->switch_log->head =
2617 (ctx->switch_log->head + 1) % SWITCH_LOG_BUFSIZE;
2620 wake_up(&ctx->switch_log->wait);
2623 static int spufs_show_ctx(struct seq_file *s, void *private)
2625 struct spu_context *ctx = s->private;
2628 mutex_lock(&ctx->state_mutex);
2630 struct spu *spu = ctx->spu;
2631 struct spu_priv2 __iomem *priv2 = spu->priv2;
2633 spin_lock_irq(&spu->register_lock);
2634 mfc_control_RW = in_be64(&priv2->mfc_control_RW);
2635 spin_unlock_irq(&spu->register_lock);
2637 struct spu_state *csa = &ctx->csa;
2639 mfc_control_RW = csa->priv2.mfc_control_RW;
2642 seq_printf(s, "%c flgs(%lx) sflgs(%lx) pri(%d) ts(%d) spu(%02d)"
2643 " %c %llx %llx %llx %llx %x %x\n",
2644 ctx->state == SPU_STATE_SAVED ? 'S' : 'R',
2649 ctx->spu ? ctx->spu->number : -1,
2650 !list_empty(&ctx->rq) ? 'q' : ' ',
2651 ctx->csa.class_0_pending,
2652 ctx->csa.class_0_dar,
2653 ctx->csa.class_1_dsisr,
2655 ctx->ops->runcntl_read(ctx),
2656 ctx->ops->status_read(ctx));
2658 mutex_unlock(&ctx->state_mutex);
2663 static int spufs_ctx_open(struct inode *inode, struct file *file)
2665 return single_open(file, spufs_show_ctx, SPUFS_I(inode)->i_ctx);
2668 static const struct file_operations spufs_ctx_fops = {
2669 .open = spufs_ctx_open,
2671 .llseek = seq_lseek,
2672 .release = single_release,
2675 const struct spufs_tree_descr spufs_dir_contents[] = {
2676 { "capabilities", &spufs_caps_fops, 0444, },
2677 { "mem", &spufs_mem_fops, 0666, LS_SIZE, },
2678 { "regs", &spufs_regs_fops, 0666, sizeof(struct spu_reg128[128]), },
2679 { "mbox", &spufs_mbox_fops, 0444, },
2680 { "ibox", &spufs_ibox_fops, 0444, },
2681 { "wbox", &spufs_wbox_fops, 0222, },
2682 { "mbox_stat", &spufs_mbox_stat_fops, 0444, sizeof(u32), },
2683 { "ibox_stat", &spufs_ibox_stat_fops, 0444, sizeof(u32), },
2684 { "wbox_stat", &spufs_wbox_stat_fops, 0444, sizeof(u32), },
2685 { "signal1", &spufs_signal1_fops, 0666, },
2686 { "signal2", &spufs_signal2_fops, 0666, },
2687 { "signal1_type", &spufs_signal1_type, 0666, },
2688 { "signal2_type", &spufs_signal2_type, 0666, },
2689 { "cntl", &spufs_cntl_fops, 0666, },
2690 { "fpcr", &spufs_fpcr_fops, 0666, sizeof(struct spu_reg128), },
2691 { "lslr", &spufs_lslr_ops, 0444, },
2692 { "mfc", &spufs_mfc_fops, 0666, },
2693 { "mss", &spufs_mss_fops, 0666, },
2694 { "npc", &spufs_npc_ops, 0666, },
2695 { "srr0", &spufs_srr0_ops, 0666, },
2696 { "decr", &spufs_decr_ops, 0666, },
2697 { "decr_status", &spufs_decr_status_ops, 0666, },
2698 { "event_mask", &spufs_event_mask_ops, 0666, },
2699 { "event_status", &spufs_event_status_ops, 0444, },
2700 { "psmap", &spufs_psmap_fops, 0666, SPUFS_PS_MAP_SIZE, },
2701 { "phys-id", &spufs_id_ops, 0666, },
2702 { "object-id", &spufs_object_id_ops, 0666, },
2703 { "mbox_info", &spufs_mbox_info_fops, 0444, sizeof(u32), },
2704 { "ibox_info", &spufs_ibox_info_fops, 0444, sizeof(u32), },
2705 { "wbox_info", &spufs_wbox_info_fops, 0444, sizeof(u32), },
2706 { "dma_info", &spufs_dma_info_fops, 0444,
2707 sizeof(struct spu_dma_info), },
2708 { "proxydma_info", &spufs_proxydma_info_fops, 0444,
2709 sizeof(struct spu_proxydma_info)},
2710 { "tid", &spufs_tid_fops, 0444, },
2711 { "stat", &spufs_stat_fops, 0444, },
2712 { "switch_log", &spufs_switch_log_fops, 0444 },
2716 const struct spufs_tree_descr spufs_dir_nosched_contents[] = {
2717 { "capabilities", &spufs_caps_fops, 0444, },
2718 { "mem", &spufs_mem_fops, 0666, LS_SIZE, },
2719 { "mbox", &spufs_mbox_fops, 0444, },
2720 { "ibox", &spufs_ibox_fops, 0444, },
2721 { "wbox", &spufs_wbox_fops, 0222, },
2722 { "mbox_stat", &spufs_mbox_stat_fops, 0444, sizeof(u32), },
2723 { "ibox_stat", &spufs_ibox_stat_fops, 0444, sizeof(u32), },
2724 { "wbox_stat", &spufs_wbox_stat_fops, 0444, sizeof(u32), },
2725 { "signal1", &spufs_signal1_nosched_fops, 0222, },
2726 { "signal2", &spufs_signal2_nosched_fops, 0222, },
2727 { "signal1_type", &spufs_signal1_type, 0666, },
2728 { "signal2_type", &spufs_signal2_type, 0666, },
2729 { "mss", &spufs_mss_fops, 0666, },
2730 { "mfc", &spufs_mfc_fops, 0666, },
2731 { "cntl", &spufs_cntl_fops, 0666, },
2732 { "npc", &spufs_npc_ops, 0666, },
2733 { "psmap", &spufs_psmap_fops, 0666, SPUFS_PS_MAP_SIZE, },
2734 { "phys-id", &spufs_id_ops, 0666, },
2735 { "object-id", &spufs_object_id_ops, 0666, },
2736 { "tid", &spufs_tid_fops, 0444, },
2737 { "stat", &spufs_stat_fops, 0444, },
2741 const struct spufs_tree_descr spufs_dir_debug_contents[] = {
2742 { ".ctx", &spufs_ctx_fops, 0444, },
2746 const struct spufs_coredump_reader spufs_coredump_read[] = {
2747 { "regs", __spufs_regs_read, NULL, sizeof(struct spu_reg128[128])},
2748 { "fpcr", __spufs_fpcr_read, NULL, sizeof(struct spu_reg128) },
2749 { "lslr", NULL, spufs_lslr_get, 19 },
2750 { "decr", NULL, spufs_decr_get, 19 },
2751 { "decr_status", NULL, spufs_decr_status_get, 19 },
2752 { "mem", __spufs_mem_read, NULL, LS_SIZE, },
2753 { "signal1", __spufs_signal1_read, NULL, sizeof(u32) },
2754 { "signal1_type", NULL, spufs_signal1_type_get, 19 },
2755 { "signal2", __spufs_signal2_read, NULL, sizeof(u32) },
2756 { "signal2_type", NULL, spufs_signal2_type_get, 19 },
2757 { "event_mask", NULL, spufs_event_mask_get, 19 },
2758 { "event_status", NULL, spufs_event_status_get, 19 },
2759 { "mbox_info", __spufs_mbox_info_read, NULL, sizeof(u32) },
2760 { "ibox_info", __spufs_ibox_info_read, NULL, sizeof(u32) },
2761 { "wbox_info", __spufs_wbox_info_read, NULL, 4 * sizeof(u32)},
2762 { "dma_info", __spufs_dma_info_read, NULL, sizeof(struct spu_dma_info)},
2763 { "proxydma_info", __spufs_proxydma_info_read,
2764 NULL, sizeof(struct spu_proxydma_info)},
2765 { "object-id", NULL, spufs_object_id_get, 19 },
2766 { "npc", NULL, spufs_npc_get, 19 },