| /* |
| * SPU file system -- file contents |
| * |
| * (C) Copyright IBM Deutschland Entwicklung GmbH 2005 |
| * |
| * Author: Arnd Bergmann <arndb@de.ibm.com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2, or (at your option) |
| * any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| */ |
| |
| #undef DEBUG |
| |
| #include <linux/fs.h> |
| #include <linux/ioctl.h> |
| #include <linux/module.h> |
| #include <linux/pagemap.h> |
| #include <linux/poll.h> |
| #include <linux/ptrace.h> |
| #include <linux/seq_file.h> |
| |
| #include <asm/io.h> |
| #include <asm/semaphore.h> |
| #include <asm/spu.h> |
| #include <asm/spu_info.h> |
| #include <asm/uaccess.h> |
| |
| #include "spufs.h" |
| |
| #define SPUFS_MMAP_4K (PAGE_SIZE == 0x1000) |
| |
| |
| static int |
| spufs_mem_open(struct inode *inode, struct file *file) |
| { |
| struct spufs_inode_info *i = SPUFS_I(inode); |
| struct spu_context *ctx = i->i_ctx; |
| |
| mutex_lock(&ctx->mapping_lock); |
| file->private_data = ctx; |
| if (!i->i_openers++) |
| ctx->local_store = inode->i_mapping; |
| mutex_unlock(&ctx->mapping_lock); |
| return 0; |
| } |
| |
| static int |
| spufs_mem_release(struct inode *inode, struct file *file) |
| { |
| struct spufs_inode_info *i = SPUFS_I(inode); |
| struct spu_context *ctx = i->i_ctx; |
| |
| mutex_lock(&ctx->mapping_lock); |
| if (!--i->i_openers) |
| ctx->local_store = NULL; |
| mutex_unlock(&ctx->mapping_lock); |
| return 0; |
| } |
| |
| static ssize_t |
| __spufs_mem_read(struct spu_context *ctx, char __user *buffer, |
| size_t size, loff_t *pos) |
| { |
| char *local_store = ctx->ops->get_ls(ctx); |
| return simple_read_from_buffer(buffer, size, pos, local_store, |
| LS_SIZE); |
| } |
| |
| static ssize_t |
| spufs_mem_read(struct file *file, char __user *buffer, |
| size_t size, loff_t *pos) |
| { |
| struct spu_context *ctx = file->private_data; |
| ssize_t ret; |
| |
| spu_acquire(ctx); |
| ret = __spufs_mem_read(ctx, buffer, size, pos); |
| spu_release(ctx); |
| return ret; |
| } |
| |
| static ssize_t |
| spufs_mem_write(struct file *file, const char __user *buffer, |
| size_t size, loff_t *ppos) |
| { |
| struct spu_context *ctx = file->private_data; |
| char *local_store; |
| loff_t pos = *ppos; |
| int ret; |
| |
| if (pos < 0) |
| return -EINVAL; |
| if (pos > LS_SIZE) |
| return -EFBIG; |
| if (size > LS_SIZE - pos) |
| size = LS_SIZE - pos; |
| |
| spu_acquire(ctx); |
| local_store = ctx->ops->get_ls(ctx); |
| ret = copy_from_user(local_store + pos, buffer, size); |
| spu_release(ctx); |
| |
| if (ret) |
| return -EFAULT; |
| *ppos = pos + size; |
| return size; |
| } |
| |
| static unsigned long spufs_mem_mmap_nopfn(struct vm_area_struct *vma, |
| unsigned long address) |
| { |
| struct spu_context *ctx = vma->vm_file->private_data; |
| unsigned long pfn, offset, addr0 = address; |
| #ifdef CONFIG_SPU_FS_64K_LS |
| struct spu_state *csa = &ctx->csa; |
| int psize; |
| |
| /* Check what page size we are using */ |
| psize = get_slice_psize(vma->vm_mm, address); |
| |
| /* Some sanity checking */ |
| BUG_ON(csa->use_big_pages != (psize == MMU_PAGE_64K)); |
| |
| /* Wow, 64K, cool, we need to align the address though */ |
| if (csa->use_big_pages) { |
| BUG_ON(vma->vm_start & 0xffff); |
| address &= ~0xfffful; |
| } |
| #endif /* CONFIG_SPU_FS_64K_LS */ |
| |
| offset = (address - vma->vm_start) + (vma->vm_pgoff << PAGE_SHIFT); |
| if (offset >= LS_SIZE) |
| return NOPFN_SIGBUS; |
| |
| pr_debug("spufs_mem_mmap_nopfn address=0x%lx -> 0x%lx, offset=0x%lx\n", |
| addr0, address, offset); |
| |
| spu_acquire(ctx); |
| |
| if (ctx->state == SPU_STATE_SAVED) { |
| vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) |
| & ~_PAGE_NO_CACHE); |
| pfn = vmalloc_to_pfn(ctx->csa.lscsa->ls + offset); |
| } else { |
| vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) |
| | _PAGE_NO_CACHE); |
| pfn = (ctx->spu->local_store_phys + offset) >> PAGE_SHIFT; |
| } |
| vm_insert_pfn(vma, address, pfn); |
| |
| spu_release(ctx); |
| |
| return NOPFN_REFAULT; |
| } |
| |
| |
| static struct vm_operations_struct spufs_mem_mmap_vmops = { |
| .nopfn = spufs_mem_mmap_nopfn, |
| }; |
| |
| static int spufs_mem_mmap(struct file *file, struct vm_area_struct *vma) |
| { |
| #ifdef CONFIG_SPU_FS_64K_LS |
| struct spu_context *ctx = file->private_data; |
| struct spu_state *csa = &ctx->csa; |
| |
| /* Sanity check VMA alignment */ |
| if (csa->use_big_pages) { |
| pr_debug("spufs_mem_mmap 64K, start=0x%lx, end=0x%lx," |
| " pgoff=0x%lx\n", vma->vm_start, vma->vm_end, |
| vma->vm_pgoff); |
| if (vma->vm_start & 0xffff) |
| return -EINVAL; |
| if (vma->vm_pgoff & 0xf) |
| return -EINVAL; |
| } |
| #endif /* CONFIG_SPU_FS_64K_LS */ |
| |
| if (!(vma->vm_flags & VM_SHARED)) |
| return -EINVAL; |
| |
| vma->vm_flags |= VM_IO | VM_PFNMAP; |
| vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) |
| | _PAGE_NO_CACHE); |
| |
| vma->vm_ops = &spufs_mem_mmap_vmops; |
| return 0; |
| } |
| |
| #ifdef CONFIG_SPU_FS_64K_LS |
| unsigned long spufs_get_unmapped_area(struct file *file, unsigned long addr, |
| unsigned long len, unsigned long pgoff, |
| unsigned long flags) |
| { |
| struct spu_context *ctx = file->private_data; |
| struct spu_state *csa = &ctx->csa; |
| |
| /* If not using big pages, fallback to normal MM g_u_a */ |
| if (!csa->use_big_pages) |
| return current->mm->get_unmapped_area(file, addr, len, |
| pgoff, flags); |
| |
| /* Else, try to obtain a 64K pages slice */ |
| return slice_get_unmapped_area(addr, len, flags, |
| MMU_PAGE_64K, 1, 0); |
| } |
| #endif /* CONFIG_SPU_FS_64K_LS */ |
| |
| static const struct file_operations spufs_mem_fops = { |
| .open = spufs_mem_open, |
| .release = spufs_mem_release, |
| .read = spufs_mem_read, |
| .write = spufs_mem_write, |
| .llseek = generic_file_llseek, |
| .mmap = spufs_mem_mmap, |
| #ifdef CONFIG_SPU_FS_64K_LS |
| .get_unmapped_area = spufs_get_unmapped_area, |
| #endif |
| }; |
| |
| static unsigned long spufs_ps_nopfn(struct vm_area_struct *vma, |
| unsigned long address, |
| unsigned long ps_offs, |
| unsigned long ps_size) |
| { |
| struct spu_context *ctx = vma->vm_file->private_data; |
| unsigned long area, offset = address - vma->vm_start; |
| int ret; |
| |
| offset += vma->vm_pgoff << PAGE_SHIFT; |
| if (offset >= ps_size) |
| return NOPFN_SIGBUS; |
| |
| /* error here usually means a signal.. we might want to test |
| * the error code more precisely though |
| */ |
| ret = spu_acquire_runnable(ctx, 0); |
| if (ret) |
| return NOPFN_REFAULT; |
| |
| area = ctx->spu->problem_phys + ps_offs; |
| vm_insert_pfn(vma, address, (area + offset) >> PAGE_SHIFT); |
| spu_release(ctx); |
| |
| return NOPFN_REFAULT; |
| } |
| |
| #if SPUFS_MMAP_4K |
| static unsigned long spufs_cntl_mmap_nopfn(struct vm_area_struct *vma, |
| unsigned long address) |
| { |
| return spufs_ps_nopfn(vma, address, 0x4000, 0x1000); |
| } |
| |
| static struct vm_operations_struct spufs_cntl_mmap_vmops = { |
| .nopfn = spufs_cntl_mmap_nopfn, |
| }; |
| |
| /* |
| * mmap support for problem state control area [0x4000 - 0x4fff]. |
| */ |
| static int spufs_cntl_mmap(struct file *file, struct vm_area_struct *vma) |
| { |
| if (!(vma->vm_flags & VM_SHARED)) |
| return -EINVAL; |
| |
| vma->vm_flags |= VM_IO | VM_PFNMAP; |
| vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) |
| | _PAGE_NO_CACHE | _PAGE_GUARDED); |
| |
| vma->vm_ops = &spufs_cntl_mmap_vmops; |
| return 0; |
| } |
| #else /* SPUFS_MMAP_4K */ |
| #define spufs_cntl_mmap NULL |
| #endif /* !SPUFS_MMAP_4K */ |
| |
| static u64 spufs_cntl_get(void *data) |
| { |
| struct spu_context *ctx = data; |
| u64 val; |
| |
| spu_acquire(ctx); |
| val = ctx->ops->status_read(ctx); |
| spu_release(ctx); |
| |
| return val; |
| } |
| |
| static void spufs_cntl_set(void *data, u64 val) |
| { |
| struct spu_context *ctx = data; |
| |
| spu_acquire(ctx); |
| ctx->ops->runcntl_write(ctx, val); |
| spu_release(ctx); |
| } |
| |
| static int spufs_cntl_open(struct inode *inode, struct file *file) |
| { |
| struct spufs_inode_info *i = SPUFS_I(inode); |
| struct spu_context *ctx = i->i_ctx; |
| |
| mutex_lock(&ctx->mapping_lock); |
| file->private_data = ctx; |
| if (!i->i_openers++) |
| ctx->cntl = inode->i_mapping; |
| mutex_unlock(&ctx->mapping_lock); |
| return simple_attr_open(inode, file, spufs_cntl_get, |
| spufs_cntl_set, "0x%08lx"); |
| } |
| |
| static int |
| spufs_cntl_release(struct inode *inode, struct file *file) |
| { |
| struct spufs_inode_info *i = SPUFS_I(inode); |
| struct spu_context *ctx = i->i_ctx; |
| |
| simple_attr_close(inode, file); |
| |
| mutex_lock(&ctx->mapping_lock); |
| if (!--i->i_openers) |
| ctx->cntl = NULL; |
| mutex_unlock(&ctx->mapping_lock); |
| return 0; |
| } |
| |
| static const struct file_operations spufs_cntl_fops = { |
| .open = spufs_cntl_open, |
| .release = spufs_cntl_release, |
| .read = simple_attr_read, |
| .write = simple_attr_write, |
| .mmap = spufs_cntl_mmap, |
| }; |
| |
| static int |
| spufs_regs_open(struct inode *inode, struct file *file) |
| { |
| struct spufs_inode_info *i = SPUFS_I(inode); |
| file->private_data = i->i_ctx; |
| return 0; |
| } |
| |
| static ssize_t |
| __spufs_regs_read(struct spu_context *ctx, char __user *buffer, |
| size_t size, loff_t *pos) |
| { |
| struct spu_lscsa *lscsa = ctx->csa.lscsa; |
| return simple_read_from_buffer(buffer, size, pos, |
| lscsa->gprs, sizeof lscsa->gprs); |
| } |
| |
| static ssize_t |
| spufs_regs_read(struct file *file, char __user *buffer, |
| size_t size, loff_t *pos) |
| { |
| int ret; |
| struct spu_context *ctx = file->private_data; |
| |
| spu_acquire_saved(ctx); |
| ret = __spufs_regs_read(ctx, buffer, size, pos); |
| spu_release_saved(ctx); |
| return ret; |
| } |
| |
| static ssize_t |
| spufs_regs_write(struct file *file, const char __user *buffer, |
| size_t size, loff_t *pos) |
| { |
| struct spu_context *ctx = file->private_data; |
| struct spu_lscsa *lscsa = ctx->csa.lscsa; |
| int ret; |
| |
| size = min_t(ssize_t, sizeof lscsa->gprs - *pos, size); |
| if (size <= 0) |
| return -EFBIG; |
| *pos += size; |
| |
| spu_acquire_saved(ctx); |
| |
| ret = copy_from_user(lscsa->gprs + *pos - size, |
| buffer, size) ? -EFAULT : size; |
| |
| spu_release_saved(ctx); |
| return ret; |
| } |
| |
| static const struct file_operations spufs_regs_fops = { |
| .open = spufs_regs_open, |
| .read = spufs_regs_read, |
| .write = spufs_regs_write, |
| .llseek = generic_file_llseek, |
| }; |
| |
| static ssize_t |
| __spufs_fpcr_read(struct spu_context *ctx, char __user * buffer, |
| size_t size, loff_t * pos) |
| { |
| struct spu_lscsa *lscsa = ctx->csa.lscsa; |
| return simple_read_from_buffer(buffer, size, pos, |
| &lscsa->fpcr, sizeof(lscsa->fpcr)); |
| } |
| |
| static ssize_t |
| spufs_fpcr_read(struct file *file, char __user * buffer, |
| size_t size, loff_t * pos) |
| { |
| int ret; |
| struct spu_context *ctx = file->private_data; |
| |
| spu_acquire_saved(ctx); |
| ret = __spufs_fpcr_read(ctx, buffer, size, pos); |
| spu_release_saved(ctx); |
| return ret; |
| } |
| |
| static ssize_t |
| spufs_fpcr_write(struct file *file, const char __user * buffer, |
| size_t size, loff_t * pos) |
| { |
| struct spu_context *ctx = file->private_data; |
| struct spu_lscsa *lscsa = ctx->csa.lscsa; |
| int ret; |
| |
| size = min_t(ssize_t, sizeof(lscsa->fpcr) - *pos, size); |
| if (size <= 0) |
| return -EFBIG; |
| *pos += size; |
| |
| spu_acquire_saved(ctx); |
| |
| ret = copy_from_user((char *)&lscsa->fpcr + *pos - size, |
| buffer, size) ? -EFAULT : size; |
| |
| spu_release_saved(ctx); |
| return ret; |
| } |
| |
| static const struct file_operations spufs_fpcr_fops = { |
| .open = spufs_regs_open, |
| .read = spufs_fpcr_read, |
| .write = spufs_fpcr_write, |
| .llseek = generic_file_llseek, |
| }; |
| |
| /* generic open function for all pipe-like files */ |
| static int spufs_pipe_open(struct inode *inode, struct file *file) |
| { |
| struct spufs_inode_info *i = SPUFS_I(inode); |
| file->private_data = i->i_ctx; |
| |
| return nonseekable_open(inode, file); |
| } |
| |
| /* |
| * Read as many bytes from the mailbox as possible, until |
| * one of the conditions becomes true: |
| * |
| * - no more data available in the mailbox |
| * - end of the user provided buffer |
| * - end of the mapped area |
| */ |
| static ssize_t spufs_mbox_read(struct file *file, char __user *buf, |
| size_t len, loff_t *pos) |
| { |
| struct spu_context *ctx = file->private_data; |
| u32 mbox_data, __user *udata; |
| ssize_t count; |
| |
| if (len < 4) |
| return -EINVAL; |
| |
| if (!access_ok(VERIFY_WRITE, buf, len)) |
| return -EFAULT; |
| |
| udata = (void __user *)buf; |
| |
| spu_acquire(ctx); |
| for (count = 0; (count + 4) <= len; count += 4, udata++) { |
| int ret; |
| ret = ctx->ops->mbox_read(ctx, &mbox_data); |
| if (ret == 0) |
| break; |
| |
| /* |
| * at the end of the mapped area, we can fault |
| * but still need to return the data we have |
| * read successfully so far. |
| */ |
| ret = __put_user(mbox_data, udata); |
| if (ret) { |
| if (!count) |
| count = -EFAULT; |
| break; |
| } |
| } |
| spu_release(ctx); |
| |
| if (!count) |
| count = -EAGAIN; |
| |
| return count; |
| } |
| |
| static const struct file_operations spufs_mbox_fops = { |
| .open = spufs_pipe_open, |
| .read = spufs_mbox_read, |
| }; |
| |
| static ssize_t spufs_mbox_stat_read(struct file *file, char __user *buf, |
| size_t len, loff_t *pos) |
| { |
| struct spu_context *ctx = file->private_data; |
| u32 mbox_stat; |
| |
| if (len < 4) |
| return -EINVAL; |
| |
| spu_acquire(ctx); |
| |
| mbox_stat = ctx->ops->mbox_stat_read(ctx) & 0xff; |
| |
| spu_release(ctx); |
| |
| if (copy_to_user(buf, &mbox_stat, sizeof mbox_stat)) |
| return -EFAULT; |
| |
| return 4; |
| } |
| |
| static const struct file_operations spufs_mbox_stat_fops = { |
| .open = spufs_pipe_open, |
| .read = spufs_mbox_stat_read, |
| }; |
| |
| /* low-level ibox access function */ |
| size_t spu_ibox_read(struct spu_context *ctx, u32 *data) |
| { |
| return ctx->ops->ibox_read(ctx, data); |
| } |
| |
| static int spufs_ibox_fasync(int fd, struct file *file, int on) |
| { |
| struct spu_context *ctx = file->private_data; |
| |
| return fasync_helper(fd, file, on, &ctx->ibox_fasync); |
| } |
| |
| /* interrupt-level ibox callback function. */ |
| void spufs_ibox_callback(struct spu *spu) |
| { |
| struct spu_context *ctx = spu->ctx; |
| |
| wake_up_all(&ctx->ibox_wq); |
| kill_fasync(&ctx->ibox_fasync, SIGIO, POLLIN); |
| } |
| |
| /* |
| * Read as many bytes from the interrupt mailbox as possible, until |
| * one of the conditions becomes true: |
| * |
| * - no more data available in the mailbox |
| * - end of the user provided buffer |
| * - end of the mapped area |
| * |
| * If the file is opened without O_NONBLOCK, we wait here until |
| * any data is available, but return when we have been able to |
| * read something. |
| */ |
| static ssize_t spufs_ibox_read(struct file *file, char __user *buf, |
| size_t len, loff_t *pos) |
| { |
| struct spu_context *ctx = file->private_data; |
| u32 ibox_data, __user *udata; |
| ssize_t count; |
| |
| if (len < 4) |
| return -EINVAL; |
| |
| if (!access_ok(VERIFY_WRITE, buf, len)) |
| return -EFAULT; |
| |
| udata = (void __user *)buf; |
| |
| spu_acquire(ctx); |
| |
| /* wait only for the first element */ |
| count = 0; |
| if (file->f_flags & O_NONBLOCK) { |
| if (!spu_ibox_read(ctx, &ibox_data)) |
| count = -EAGAIN; |
| } else { |
| count = spufs_wait(ctx->ibox_wq, spu_ibox_read(ctx, &ibox_data)); |
| } |
| if (count) |
| goto out; |
| |
| /* if we can't write at all, return -EFAULT */ |
| count = __put_user(ibox_data, udata); |
| if (count) |
| goto out; |
| |
| for (count = 4, udata++; (count + 4) <= len; count += 4, udata++) { |
| int ret; |
| ret = ctx->ops->ibox_read(ctx, &ibox_data); |
| if (ret == 0) |
| break; |
| /* |
| * at the end of the mapped area, we can fault |
| * but still need to return the data we have |
| * read successfully so far. |
| */ |
| ret = __put_user(ibox_data, udata); |
| if (ret) |
| break; |
| } |
| |
| out: |
| spu_release(ctx); |
| |
| return count; |
| } |
| |
| static unsigned int spufs_ibox_poll(struct file *file, poll_table *wait) |
| { |
| struct spu_context *ctx = file->private_data; |
| unsigned int mask; |
| |
| poll_wait(file, &ctx->ibox_wq, wait); |
| |
| spu_acquire(ctx); |
| mask = ctx->ops->mbox_stat_poll(ctx, POLLIN | POLLRDNORM); |
| spu_release(ctx); |
| |
| return mask; |
| } |
| |
| static const struct file_operations spufs_ibox_fops = { |
| .open = spufs_pipe_open, |
| .read = spufs_ibox_read, |
| .poll = spufs_ibox_poll, |
| .fasync = spufs_ibox_fasync, |
| }; |
| |
| static ssize_t spufs_ibox_stat_read(struct file *file, char __user *buf, |
| size_t len, loff_t *pos) |
| { |
| struct spu_context *ctx = file->private_data; |
| u32 ibox_stat; |
| |
| if (len < 4) |
| return -EINVAL; |
| |
| spu_acquire(ctx); |
| ibox_stat = (ctx->ops->mbox_stat_read(ctx) >> 16) & 0xff; |
| spu_release(ctx); |
| |
| if (copy_to_user(buf, &ibox_stat, sizeof ibox_stat)) |
| return -EFAULT; |
| |
| return 4; |
| } |
| |
| static const struct file_operations spufs_ibox_stat_fops = { |
| .open = spufs_pipe_open, |
| .read = spufs_ibox_stat_read, |
| }; |
| |
| /* low-level mailbox write */ |
| size_t spu_wbox_write(struct spu_context *ctx, u32 data) |
| { |
| return ctx->ops->wbox_write(ctx, data); |
| } |
| |
| static int spufs_wbox_fasync(int fd, struct file *file, int on) |
| { |
| struct spu_context *ctx = file->private_data; |
| int ret; |
| |
| ret = fasync_helper(fd, file, on, &ctx->wbox_fasync); |
| |
| return ret; |
| } |
| |
| /* interrupt-level wbox callback function. */ |
| void spufs_wbox_callback(struct spu *spu) |
| { |
| struct spu_context *ctx = spu->ctx; |
| |
| wake_up_all(&ctx->wbox_wq); |
| kill_fasync(&ctx->wbox_fasync, SIGIO, POLLOUT); |
| } |
| |
| /* |
| * Write as many bytes to the interrupt mailbox as possible, until |
| * one of the conditions becomes true: |
| * |
| * - the mailbox is full |
| * - end of the user provided buffer |
| * - end of the mapped area |
| * |
| * If the file is opened without O_NONBLOCK, we wait here until |
| * space is availabyl, but return when we have been able to |
| * write something. |
| */ |
| static ssize_t spufs_wbox_write(struct file *file, const char __user *buf, |
| size_t len, loff_t *pos) |
| { |
| struct spu_context *ctx = file->private_data; |
| u32 wbox_data, __user *udata; |
| ssize_t count; |
| |
| if (len < 4) |
| return -EINVAL; |
| |
| udata = (void __user *)buf; |
| if (!access_ok(VERIFY_READ, buf, len)) |
| return -EFAULT; |
| |
| if (__get_user(wbox_data, udata)) |
| return -EFAULT; |
| |
| spu_acquire(ctx); |
| |
| /* |
| * make sure we can at least write one element, by waiting |
| * in case of !O_NONBLOCK |
| */ |
| count = 0; |
| if (file->f_flags & O_NONBLOCK) { |
| if (!spu_wbox_write(ctx, wbox_data)) |
| count = -EAGAIN; |
| } else { |
| count = spufs_wait(ctx->wbox_wq, spu_wbox_write(ctx, wbox_data)); |
| } |
| |
| if (count) |
| goto out; |
| |
| /* write aѕ much as possible */ |
| for (count = 4, udata++; (count + 4) <= len; count += 4, udata++) { |
| int ret; |
| ret = __get_user(wbox_data, udata); |
| if (ret) |
| break; |
| |
| ret = spu_wbox_write(ctx, wbox_data); |
| if (ret == 0) |
| break; |
| } |
| |
| out: |
| spu_release(ctx); |
| return count; |
| } |
| |
| static unsigned int spufs_wbox_poll(struct file *file, poll_table *wait) |
| { |
| struct spu_context *ctx = file->private_data; |
| unsigned int mask; |
| |
| poll_wait(file, &ctx->wbox_wq, wait); |
| |
| spu_acquire(ctx); |
| mask = ctx->ops->mbox_stat_poll(ctx, POLLOUT | POLLWRNORM); |
| spu_release(ctx); |
| |
| return mask; |
| } |
| |
| static const struct file_operations spufs_wbox_fops = { |
| .open = spufs_pipe_open, |
| .write = spufs_wbox_write, |
| .poll = spufs_wbox_poll, |
| .fasync = spufs_wbox_fasync, |
| }; |
| |
| static ssize_t spufs_wbox_stat_read(struct file *file, char __user *buf, |
| size_t len, loff_t *pos) |
| { |
| struct spu_context *ctx = file->private_data; |
| u32 wbox_stat; |
| |
| if (len < 4) |
| return -EINVAL; |
| |
| spu_acquire(ctx); |
| wbox_stat = (ctx->ops->mbox_stat_read(ctx) >> 8) & 0xff; |
| spu_release(ctx); |
| |
| if (copy_to_user(buf, &wbox_stat, sizeof wbox_stat)) |
| return -EFAULT; |
| |
| return 4; |
| } |
| |
| static const struct file_operations spufs_wbox_stat_fops = { |
| .open = spufs_pipe_open, |
| .read = spufs_wbox_stat_read, |
| }; |
| |
| static int spufs_signal1_open(struct inode *inode, struct file *file) |
| { |
| struct spufs_inode_info *i = SPUFS_I(inode); |
| struct spu_context *ctx = i->i_ctx; |
| |
| mutex_lock(&ctx->mapping_lock); |
| file->private_data = ctx; |
| if (!i->i_openers++) |
| ctx->signal1 = inode->i_mapping; |
| mutex_unlock(&ctx->mapping_lock); |
| return nonseekable_open(inode, file); |
| } |
| |
| static int |
| spufs_signal1_release(struct inode *inode, struct file *file) |
| { |
| struct spufs_inode_info *i = SPUFS_I(inode); |
| struct spu_context *ctx = i->i_ctx; |
| |
| mutex_lock(&ctx->mapping_lock); |
| if (!--i->i_openers) |
| ctx->signal1 = NULL; |
| mutex_unlock(&ctx->mapping_lock); |
| return 0; |
| } |
| |
| static ssize_t __spufs_signal1_read(struct spu_context *ctx, char __user *buf, |
| size_t len, loff_t *pos) |
| { |
| int ret = 0; |
| u32 data; |
| |
| if (len < 4) |
| return -EINVAL; |
| |
| if (ctx->csa.spu_chnlcnt_RW[3]) { |
| data = ctx->csa.spu_chnldata_RW[3]; |
| ret = 4; |
| } |
| |
| if (!ret) |
| goto out; |
| |
| if (copy_to_user(buf, &data, 4)) |
| return -EFAULT; |
| |
| out: |
| return ret; |
| } |
| |
| static ssize_t spufs_signal1_read(struct file *file, char __user *buf, |
| size_t len, loff_t *pos) |
| { |
| int ret; |
| struct spu_context *ctx = file->private_data; |
| |
| spu_acquire_saved(ctx); |
| ret = __spufs_signal1_read(ctx, buf, len, pos); |
| spu_release_saved(ctx); |
| |
| return ret; |
| } |
| |
| static ssize_t spufs_signal1_write(struct file *file, const char __user *buf, |
| size_t len, loff_t *pos) |
| { |
| struct spu_context *ctx; |
| u32 data; |
| |
| ctx = file->private_data; |
| |
| if (len < 4) |
| return -EINVAL; |
| |
| if (copy_from_user(&data, buf, 4)) |
| return -EFAULT; |
| |
| spu_acquire(ctx); |
| ctx->ops->signal1_write(ctx, data); |
| spu_release(ctx); |
| |
| return 4; |
| } |
| |
| static unsigned long spufs_signal1_mmap_nopfn(struct vm_area_struct *vma, |
| unsigned long address) |
| { |
| #if PAGE_SIZE == 0x1000 |
| return spufs_ps_nopfn(vma, address, 0x14000, 0x1000); |
| #elif PAGE_SIZE == 0x10000 |
| /* For 64k pages, both signal1 and signal2 can be used to mmap the whole |
| * signal 1 and 2 area |
| */ |
| return spufs_ps_nopfn(vma, address, 0x10000, 0x10000); |
| #else |
| #error unsupported page size |
| #endif |
| } |
| |
| static struct vm_operations_struct spufs_signal1_mmap_vmops = { |
| .nopfn = spufs_signal1_mmap_nopfn, |
| }; |
| |
| static int spufs_signal1_mmap(struct file *file, struct vm_area_struct *vma) |
| { |
| if (!(vma->vm_flags & VM_SHARED)) |
| return -EINVAL; |
| |
| vma->vm_flags |= VM_IO | VM_PFNMAP; |
| vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) |
| | _PAGE_NO_CACHE | _PAGE_GUARDED); |
| |
| vma->vm_ops = &spufs_signal1_mmap_vmops; |
| return 0; |
| } |
| |
| static const struct file_operations spufs_signal1_fops = { |
| .open = spufs_signal1_open, |
| .release = spufs_signal1_release, |
| .read = spufs_signal1_read, |
| .write = spufs_signal1_write, |
| .mmap = spufs_signal1_mmap, |
| }; |
| |
| static const struct file_operations spufs_signal1_nosched_fops = { |
| .open = spufs_signal1_open, |
| .release = spufs_signal1_release, |
| .write = spufs_signal1_write, |
| .mmap = spufs_signal1_mmap, |
| }; |
| |
| static int spufs_signal2_open(struct inode *inode, struct file *file) |
| { |
| struct spufs_inode_info *i = SPUFS_I(inode); |
| struct spu_context *ctx = i->i_ctx; |
| |
| mutex_lock(&ctx->mapping_lock); |
| file->private_data = ctx; |
| if (!i->i_openers++) |
| ctx->signal2 = inode->i_mapping; |
| mutex_unlock(&ctx->mapping_lock); |
| return nonseekable_open(inode, file); |
| } |
| |
| static int |
| spufs_signal2_release(struct inode *inode, struct file *file) |
| { |
| struct spufs_inode_info *i = SPUFS_I(inode); |
| struct spu_context *ctx = i->i_ctx; |
| |
| mutex_lock(&ctx->mapping_lock); |
| if (!--i->i_openers) |
| ctx->signal2 = NULL; |
| mutex_unlock(&ctx->mapping_lock); |
| return 0; |
| } |
| |
| static ssize_t __spufs_signal2_read(struct spu_context *ctx, char __user *buf, |
| size_t len, loff_t *pos) |
| { |
| int ret = 0; |
| u32 data; |
| |
| if (len < 4) |
| return -EINVAL; |
| |
| if (ctx->csa.spu_chnlcnt_RW[4]) { |
| data = ctx->csa.spu_chnldata_RW[4]; |
| ret = 4; |
| } |
| |
| if (!ret) |
| goto out; |
| |
| if (copy_to_user(buf, &data, 4)) |
| return -EFAULT; |
| |
| out: |
| return ret; |
| } |
| |
| static ssize_t spufs_signal2_read(struct file *file, char __user *buf, |
| size_t len, loff_t *pos) |
| { |
| struct spu_context *ctx = file->private_data; |
| int ret; |
| |
| spu_acquire_saved(ctx); |
| ret = __spufs_signal2_read(ctx, buf, len, pos); |
| spu_release_saved(ctx); |
| |
| return ret; |
| } |
| |
| static ssize_t spufs_signal2_write(struct file *file, const char __user *buf, |
| size_t len, loff_t *pos) |
| { |
| struct spu_context *ctx; |
| u32 data; |
| |
| ctx = file->private_data; |
| |
| if (len < 4) |
| return -EINVAL; |
| |
| if (copy_from_user(&data, buf, 4)) |
| return -EFAULT; |
| |
| spu_acquire(ctx); |
| ctx->ops->signal2_write(ctx, data); |
| spu_release(ctx); |
| |
| return 4; |
| } |
| |
| #if SPUFS_MMAP_4K |
| static unsigned long spufs_signal2_mmap_nopfn(struct vm_area_struct *vma, |
| unsigned long address) |
| { |
| #if PAGE_SIZE == 0x1000 |
| return spufs_ps_nopfn(vma, address, 0x1c000, 0x1000); |
| #elif PAGE_SIZE == 0x10000 |
| /* For 64k pages, both signal1 and signal2 can be used to mmap the whole |
| * signal 1 and 2 area |
| */ |
| return spufs_ps_nopfn(vma, address, 0x10000, 0x10000); |
| #else |
| #error unsupported page size |
| #endif |
| } |
| |
| static struct vm_operations_struct spufs_signal2_mmap_vmops = { |
| .nopfn = spufs_signal2_mmap_nopfn, |
| }; |
| |
| static int spufs_signal2_mmap(struct file *file, struct vm_area_struct *vma) |
| { |
| if (!(vma->vm_flags & VM_SHARED)) |
| return -EINVAL; |
| |
| vma->vm_flags |= VM_IO | VM_PFNMAP; |
| vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) |
| | _PAGE_NO_CACHE | _PAGE_GUARDED); |
| |
| vma->vm_ops = &spufs_signal2_mmap_vmops; |
| return 0; |
| } |
| #else /* SPUFS_MMAP_4K */ |
| #define spufs_signal2_mmap NULL |
| #endif /* !SPUFS_MMAP_4K */ |
| |
| static const struct file_operations spufs_signal2_fops = { |
| .open = spufs_signal2_open, |
| .release = spufs_signal2_release, |
| .read = spufs_signal2_read, |
| .write = spufs_signal2_write, |
| .mmap = spufs_signal2_mmap, |
| }; |
| |
| static const struct file_operations spufs_signal2_nosched_fops = { |
| .open = spufs_signal2_open, |
| .release = spufs_signal2_release, |
| .write = spufs_signal2_write, |
| .mmap = spufs_signal2_mmap, |
| }; |
| |
| static void spufs_signal1_type_set(void *data, u64 val) |
| { |
| struct spu_context *ctx = data; |
| |
| spu_acquire(ctx); |
| ctx->ops->signal1_type_set(ctx, val); |
| spu_release(ctx); |
| } |
| |
| static u64 __spufs_signal1_type_get(void *data) |
| { |
| struct spu_context *ctx = data; |
| return ctx->ops->signal1_type_get(ctx); |
| } |
| |
| static u64 spufs_signal1_type_get(void *data) |
| { |
| struct spu_context *ctx = data; |
| u64 ret; |
| |
| spu_acquire(ctx); |
| ret = __spufs_signal1_type_get(data); |
| spu_release(ctx); |
| |
| return ret; |
| } |
| DEFINE_SIMPLE_ATTRIBUTE(spufs_signal1_type, spufs_signal1_type_get, |
| spufs_signal1_type_set, "%llu"); |
| |
| static void spufs_signal2_type_set(void *data, u64 val) |
| { |
| struct spu_context *ctx = data; |
| |
| spu_acquire(ctx); |
| ctx->ops->signal2_type_set(ctx, val); |
| spu_release(ctx); |
| } |
| |
| static u64 __spufs_signal2_type_get(void *data) |
| { |
| struct spu_context *ctx = data; |
| return ctx->ops->signal2_type_get(ctx); |
| } |
| |
| static u64 spufs_signal2_type_get(void *data) |
| { |
| struct spu_context *ctx = data; |
| u64 ret; |
| |
| spu_acquire(ctx); |
| ret = __spufs_signal2_type_get(data); |
| spu_release(ctx); |
| |
| return ret; |
| } |
| DEFINE_SIMPLE_ATTRIBUTE(spufs_signal2_type, spufs_signal2_type_get, |
| spufs_signal2_type_set, "%llu"); |
| |
| #if SPUFS_MMAP_4K |
| static unsigned long spufs_mss_mmap_nopfn(struct vm_area_struct *vma, |
| unsigned long address) |
| { |
| return spufs_ps_nopfn(vma, address, 0x0000, 0x1000); |
| } |
| |
| static struct vm_operations_struct spufs_mss_mmap_vmops = { |
| .nopfn = spufs_mss_mmap_nopfn, |
| }; |
| |
| /* |
| * mmap support for problem state MFC DMA area [0x0000 - 0x0fff]. |
| */ |
| static int spufs_mss_mmap(struct file *file, struct vm_area_struct *vma) |
| { |
| if (!(vma->vm_flags & VM_SHARED)) |
| return -EINVAL; |
| |
| vma->vm_flags |= VM_IO | VM_PFNMAP; |
| vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) |
| | _PAGE_NO_CACHE | _PAGE_GUARDED); |
| |
| vma->vm_ops = &spufs_mss_mmap_vmops; |
| return 0; |
| } |
| #else /* SPUFS_MMAP_4K */ |
| #define spufs_mss_mmap NULL |
| #endif /* !SPUFS_MMAP_4K */ |
| |
| static int spufs_mss_open(struct inode *inode, struct file *file) |
| { |
| struct spufs_inode_info *i = SPUFS_I(inode); |
| struct spu_context *ctx = i->i_ctx; |
| |
| file->private_data = i->i_ctx; |
| |
| mutex_lock(&ctx->mapping_lock); |
| if (!i->i_openers++) |
| ctx->mss = inode->i_mapping; |
| mutex_unlock(&ctx->mapping_lock); |
| return nonseekable_open(inode, file); |
| } |
| |
| static int |
| spufs_mss_release(struct inode *inode, struct file *file) |
| { |
| struct spufs_inode_info *i = SPUFS_I(inode); |
| struct spu_context *ctx = i->i_ctx; |
| |
| mutex_lock(&ctx->mapping_lock); |
| if (!--i->i_openers) |
| ctx->mss = NULL; |
| mutex_unlock(&ctx->mapping_lock); |
| return 0; |
| } |
| |
| static const struct file_operations spufs_mss_fops = { |
| .open = spufs_mss_open, |
| .release = spufs_mss_release, |
| .mmap = spufs_mss_mmap, |
| }; |
| |
| static unsigned long spufs_psmap_mmap_nopfn(struct vm_area_struct *vma, |
| unsigned long address) |
| { |
| return spufs_ps_nopfn(vma, address, 0x0000, 0x20000); |
| } |
| |
| static struct vm_operations_struct spufs_psmap_mmap_vmops = { |
| .nopfn = spufs_psmap_mmap_nopfn, |
| }; |
| |
| /* |
| * mmap support for full problem state area [0x00000 - 0x1ffff]. |
| */ |
| static int spufs_psmap_mmap(struct file *file, struct vm_area_struct *vma) |
| { |
| if (!(vma->vm_flags & VM_SHARED)) |
| return -EINVAL; |
| |
| vma->vm_flags |= VM_IO | VM_PFNMAP; |
| vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) |
| | _PAGE_NO_CACHE | _PAGE_GUARDED); |
| |
| vma->vm_ops = &spufs_psmap_mmap_vmops; |
| return 0; |
| } |
| |
| static int spufs_psmap_open(struct inode *inode, struct file *file) |
| { |
| struct spufs_inode_info *i = SPUFS_I(inode); |
| struct spu_context *ctx = i->i_ctx; |
| |
| mutex_lock(&ctx->mapping_lock); |
| file->private_data = i->i_ctx; |
| if (!i->i_openers++) |
| ctx->psmap = inode->i_mapping; |
| mutex_unlock(&ctx->mapping_lock); |
| return nonseekable_open(inode, file); |
| } |
| |
| static int |
| spufs_psmap_release(struct inode *inode, struct file *file) |
| { |
| struct spufs_inode_info *i = SPUFS_I(inode); |
| struct spu_context *ctx = i->i_ctx; |
| |
| mutex_lock(&ctx->mapping_lock); |
| if (!--i->i_openers) |
| ctx->psmap = NULL; |
| mutex_unlock(&ctx->mapping_lock); |
| return 0; |
| } |
| |
| static const struct file_operations spufs_psmap_fops = { |
| .open = spufs_psmap_open, |
| .release = spufs_psmap_release, |
| .mmap = spufs_psmap_mmap, |
| }; |
| |
| |
| #if SPUFS_MMAP_4K |
| static unsigned long spufs_mfc_mmap_nopfn(struct vm_area_struct *vma, |
| unsigned long address) |
| { |
| return spufs_ps_nopfn(vma, address, 0x3000, 0x1000); |
| } |
| |
| static struct vm_operations_struct spufs_mfc_mmap_vmops = { |
| .nopfn = spufs_mfc_mmap_nopfn, |
| }; |
| |
| /* |
| * mmap support for problem state MFC DMA area [0x0000 - 0x0fff]. |
| */ |
| static int spufs_mfc_mmap(struct file *file, struct vm_area_struct *vma) |
| { |
| if (!(vma->vm_flags & VM_SHARED)) |
| return -EINVAL; |
| |
| vma->vm_flags |= VM_IO | VM_PFNMAP; |
| vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) |
| | _PAGE_NO_CACHE | _PAGE_GUARDED); |
| |
| vma->vm_ops = &spufs_mfc_mmap_vmops; |
| return 0; |
| } |
| #else /* SPUFS_MMAP_4K */ |
| #define spufs_mfc_mmap NULL |
| #endif /* !SPUFS_MMAP_4K */ |
| |
| static int spufs_mfc_open(struct inode *inode, struct file *file) |
| { |
| struct spufs_inode_info *i = SPUFS_I(inode); |
| struct spu_context *ctx = i->i_ctx; |
| |
| /* we don't want to deal with DMA into other processes */ |
| if (ctx->owner != current->mm) |
| return -EINVAL; |
| |
| if (atomic_read(&inode->i_count) != 1) |
| return -EBUSY; |
| |
| mutex_lock(&ctx->mapping_lock); |
| file->private_data = ctx; |
| if (!i->i_openers++) |
| ctx->mfc = inode->i_mapping; |
| mutex_unlock(&ctx->mapping_lock); |
| return nonseekable_open(inode, file); |
| } |
| |
| static int |
| spufs_mfc_release(struct inode *inode, struct file *file) |
| { |
| struct spufs_inode_info *i = SPUFS_I(inode); |
| struct spu_context *ctx = i->i_ctx; |
| |
| mutex_lock(&ctx->mapping_lock); |
| if (!--i->i_openers) |
| ctx->mfc = NULL; |
| mutex_unlock(&ctx->mapping_lock); |
| return 0; |
| } |
| |
| /* interrupt-level mfc callback function. */ |
| void spufs_mfc_callback(struct spu *spu) |
| { |
| struct spu_context *ctx = spu->ctx; |
| |
| wake_up_all(&ctx->mfc_wq); |
| |
| pr_debug("%s %s\n", __FUNCTION__, spu->name); |
| if (ctx->mfc_fasync) { |
| u32 free_elements, tagstatus; |
| unsigned int mask; |
| |
| /* no need for spu_acquire in interrupt context */ |
| free_elements = ctx->ops->get_mfc_free_elements(ctx); |
| tagstatus = ctx->ops->read_mfc_tagstatus(ctx); |
| |
| mask = 0; |
| if (free_elements & 0xffff) |
| mask |= POLLOUT; |
| if (tagstatus & ctx->tagwait) |
| mask |= POLLIN; |
| |
| kill_fasync(&ctx->mfc_fasync, SIGIO, mask); |
| } |
| } |
| |
| static int spufs_read_mfc_tagstatus(struct spu_context *ctx, u32 *status) |
| { |
| /* See if there is one tag group is complete */ |
| /* FIXME we need locking around tagwait */ |
| *status = ctx->ops->read_mfc_tagstatus(ctx) & ctx->tagwait; |
| ctx->tagwait &= ~*status; |
| if (*status) |
| return 1; |
| |
| /* enable interrupt waiting for any tag group, |
| may silently fail if interrupts are already enabled */ |
| ctx->ops->set_mfc_query(ctx, ctx->tagwait, 1); |
| return 0; |
| } |
| |
| static ssize_t spufs_mfc_read(struct file *file, char __user *buffer, |
| size_t size, loff_t *pos) |
| { |
| struct spu_context *ctx = file->private_data; |
| int ret = -EINVAL; |
| u32 status; |
| |
| if (size != 4) |
| goto out; |
| |
| spu_acquire(ctx); |
| if (file->f_flags & O_NONBLOCK) { |
| status = ctx->ops->read_mfc_tagstatus(ctx); |
| if (!(status & ctx->tagwait)) |
| ret = -EAGAIN; |
| else |
| ctx->tagwait &= ~status; |
| } else { |
| ret = spufs_wait(ctx->mfc_wq, |
| spufs_read_mfc_tagstatus(ctx, &status)); |
| } |
| spu_release(ctx); |
| |
| if (ret) |
| goto out; |
| |
| ret = 4; |
| if (copy_to_user(buffer, &status, 4)) |
| ret = -EFAULT; |
| |
| out: |
| return ret; |
| } |
| |
| static int spufs_check_valid_dma(struct mfc_dma_command *cmd) |
| { |
| pr_debug("queueing DMA %x %lx %x %x %x\n", cmd->lsa, |
| cmd->ea, cmd->size, cmd->tag, cmd->cmd); |
| |
| switch (cmd->cmd) { |
| case MFC_PUT_CMD: |
| case MFC_PUTF_CMD: |
| case MFC_PUTB_CMD: |
| case MFC_GET_CMD: |
| case MFC_GETF_CMD: |
| case MFC_GETB_CMD: |
| break; |
| default: |
| pr_debug("invalid DMA opcode %x\n", cmd->cmd); |
| return -EIO; |
| } |
| |
| if ((cmd->lsa & 0xf) != (cmd->ea &0xf)) { |
| pr_debug("invalid DMA alignment, ea %lx lsa %x\n", |
| cmd->ea, cmd->lsa); |
| return -EIO; |
| } |
| |
| switch (cmd->size & 0xf) { |
| case 1: |
| break; |
| case 2: |
| if (cmd->lsa & 1) |
| goto error; |
| break; |
| case 4: |
| if (cmd->lsa & 3) |
| goto error; |
| break; |
| case 8: |
| if (cmd->lsa & 7) |
| goto error; |
| break; |
| case 0: |
| if (cmd->lsa & 15) |
| goto error; |
| break; |
| error: |
| default: |
| pr_debug("invalid DMA alignment %x for size %x\n", |
| cmd->lsa & 0xf, cmd->size); |
| return -EIO; |
| } |
| |
| if (cmd->size > 16 * 1024) { |
| pr_debug("invalid DMA size %x\n", cmd->size); |
| return -EIO; |
| } |
| |
| if (cmd->tag & 0xfff0) { |
| /* we reserve the higher tag numbers for kernel use */ |
| pr_debug("invalid DMA tag\n"); |
| return -EIO; |
| } |
| |
| if (cmd->class) { |
| /* not supported in this version */ |
| pr_debug("invalid DMA class\n"); |
| return -EIO; |
| } |
| |
| return 0; |
| } |
| |
| static int spu_send_mfc_command(struct spu_context *ctx, |
| struct mfc_dma_command cmd, |
| int *error) |
| { |
| *error = ctx->ops->send_mfc_command(ctx, &cmd); |
| if (*error == -EAGAIN) { |
| /* wait for any tag group to complete |
| so we have space for the new command */ |
| ctx->ops->set_mfc_query(ctx, ctx->tagwait, 1); |
| /* try again, because the queue might be |
| empty again */ |
| *error = ctx->ops->send_mfc_command(ctx, &cmd); |
| if (*error == -EAGAIN) |
| return 0; |
| } |
| return 1; |
| } |
| |
| static ssize_t spufs_mfc_write(struct file *file, const char __user *buffer, |
| size_t size, loff_t *pos) |
| { |
| struct spu_context *ctx = file->private_data; |
| struct mfc_dma_command cmd; |
| int ret = -EINVAL; |
| |
| if (size != sizeof cmd) |
| goto out; |
| |
| ret = -EFAULT; |
| if (copy_from_user(&cmd, buffer, sizeof cmd)) |
| goto out; |
| |
| ret = spufs_check_valid_dma(&cmd); |
| if (ret) |
| goto out; |
| |
| ret = spu_acquire_runnable(ctx, 0); |
| if (ret) |
| goto out; |
| |
| if (file->f_flags & O_NONBLOCK) { |
| ret = ctx->ops->send_mfc_command(ctx, &cmd); |
| } else { |
| int status; |
| ret = spufs_wait(ctx->mfc_wq, |
| spu_send_mfc_command(ctx, cmd, &status)); |
| if (status) |
| ret = status; |
| } |
| |
| if (ret) |
| goto out_unlock; |
| |
| ctx->tagwait |= 1 << cmd.tag; |
| ret = size; |
| |
| out_unlock: |
| spu_release(ctx); |
| out: |
| return ret; |
| } |
| |
| static unsigned int spufs_mfc_poll(struct file *file,poll_table *wait) |
| { |
| struct spu_context *ctx = file->private_data; |
| u32 free_elements, tagstatus; |
| unsigned int mask; |
| |
| poll_wait(file, &ctx->mfc_wq, wait); |
| |
| spu_acquire(ctx); |
| ctx->ops->set_mfc_query(ctx, ctx->tagwait, 2); |
| free_elements = ctx->ops->get_mfc_free_elements(ctx); |
| tagstatus = ctx->ops->read_mfc_tagstatus(ctx); |
| spu_release(ctx); |
| |
| mask = 0; |
| if (free_elements & 0xffff) |
| mask |= POLLOUT | POLLWRNORM; |
| if (tagstatus & ctx->tagwait) |
| mask |= POLLIN | POLLRDNORM; |
| |
| pr_debug("%s: free %d tagstatus %d tagwait %d\n", __FUNCTION__, |
| free_elements, tagstatus, ctx->tagwait); |
| |
| return mask; |
| } |
| |
| static int spufs_mfc_flush(struct file *file, fl_owner_t id) |
| { |
| struct spu_context *ctx = file->private_data; |
| int ret; |
| |
| spu_acquire(ctx); |
| #if 0 |
| /* this currently hangs */ |
| ret = spufs_wait(ctx->mfc_wq, |
| ctx->ops->set_mfc_query(ctx, ctx->tagwait, 2)); |
| if (ret) |
| goto out; |
| ret = spufs_wait(ctx->mfc_wq, |
| ctx->ops->read_mfc_tagstatus(ctx) == ctx->tagwait); |
| out: |
| #else |
| ret = 0; |
| #endif |
| spu_release(ctx); |
| |
| return ret; |
| } |
| |
| static int spufs_mfc_fsync(struct file *file, struct dentry *dentry, |
| int datasync) |
| { |
| return spufs_mfc_flush(file, NULL); |
| } |
| |
| static int spufs_mfc_fasync(int fd, struct file *file, int on) |
| { |
| struct spu_context *ctx = file->private_data; |
| |
| return fasync_helper(fd, file, on, &ctx->mfc_fasync); |
| } |
| |
| static const struct file_operations spufs_mfc_fops = { |
| .open = spufs_mfc_open, |
| .release = spufs_mfc_release, |
| .read = spufs_mfc_read, |
| .write = spufs_mfc_write, |
| .poll = spufs_mfc_poll, |
| .flush = spufs_mfc_flush, |
| .fsync = spufs_mfc_fsync, |
| .fasync = spufs_mfc_fasync, |
| .mmap = spufs_mfc_mmap, |
| }; |
| |
| static void spufs_npc_set(void *data, u64 val) |
| { |
| struct spu_context *ctx = data; |
| spu_acquire(ctx); |
| ctx->ops->npc_write(ctx, val); |
| spu_release(ctx); |
| } |
| |
| static u64 spufs_npc_get(void *data) |
| { |
| struct spu_context *ctx = data; |
| u64 ret; |
| spu_acquire(ctx); |
| ret = ctx->ops->npc_read(ctx); |
| spu_release(ctx); |
| return ret; |
| } |
| DEFINE_SIMPLE_ATTRIBUTE(spufs_npc_ops, spufs_npc_get, spufs_npc_set, |
| "0x%llx\n") |
| |
| static void spufs_decr_set(void *data, u64 val) |
| { |
| struct spu_context *ctx = data; |
| struct spu_lscsa *lscsa = ctx->csa.lscsa; |
| spu_acquire_saved(ctx); |
| lscsa->decr.slot[0] = (u32) val; |
| spu_release_saved(ctx); |
| } |
| |
| static u64 __spufs_decr_get(void *data) |
| { |
| struct spu_context *ctx = data; |
| struct spu_lscsa *lscsa = ctx->csa.lscsa; |
| return lscsa->decr.slot[0]; |
| } |
| |
| static u64 spufs_decr_get(void *data) |
| { |
| struct spu_context *ctx = data; |
| u64 ret; |
| spu_acquire_saved(ctx); |
| ret = __spufs_decr_get(data); |
| spu_release_saved(ctx); |
| return ret; |
| } |
| DEFINE_SIMPLE_ATTRIBUTE(spufs_decr_ops, spufs_decr_get, spufs_decr_set, |
| "0x%llx\n") |
| |
| static void spufs_decr_status_set(void *data, u64 val) |
| { |
| struct spu_context *ctx = data; |
| struct spu_lscsa *lscsa = ctx->csa.lscsa; |
| spu_acquire_saved(ctx); |
| lscsa->decr_status.slot[0] = (u32) val; |
| spu_release_saved(ctx); |
| } |
| |
| static u64 __spufs_decr_status_get(void *data) |
| { |
| struct spu_context *ctx = data; |
| struct spu_lscsa *lscsa = ctx->csa.lscsa; |
| return lscsa->decr_status.slot[0]; |
| } |
| |
| static u64 spufs_decr_status_get(void *data) |
| { |
| struct spu_context *ctx = data; |
| u64 ret; |
| spu_acquire_saved(ctx); |
| ret = __spufs_decr_status_get(data); |
| spu_release_saved(ctx); |
| return ret; |
| } |
| DEFINE_SIMPLE_ATTRIBUTE(spufs_decr_status_ops, spufs_decr_status_get, |
| spufs_decr_status_set, "0x%llx\n") |
| |
| static void spufs_event_mask_set(void *data, u64 val) |
| { |
| struct spu_context *ctx = data; |
| struct spu_lscsa *lscsa = ctx->csa.lscsa; |
| spu_acquire_saved(ctx); |
| lscsa->event_mask.slot[0] = (u32) val; |
| spu_release_saved(ctx); |
| } |
| |
| static u64 __spufs_event_mask_get(void *data) |
| { |
| struct spu_context *ctx = data; |
| struct spu_lscsa *lscsa = ctx->csa.lscsa; |
| return lscsa->event_mask.slot[0]; |
| } |
| |
| static u64 spufs_event_mask_get(void *data) |
| { |
| struct spu_context *ctx = data; |
| u64 ret; |
| spu_acquire_saved(ctx); |
| ret = __spufs_event_mask_get(data); |
| spu_release_saved(ctx); |
| return ret; |
| } |
| DEFINE_SIMPLE_ATTRIBUTE(spufs_event_mask_ops, spufs_event_mask_get, |
| spufs_event_mask_set, "0x%llx\n") |
| |
| static u64 __spufs_event_status_get(void *data) |
| { |
| struct spu_context *ctx = data; |
| struct spu_state *state = &ctx->csa; |
| u64 stat; |
| stat = state->spu_chnlcnt_RW[0]; |
| if (stat) |
| return state->spu_chnldata_RW[0]; |
| return 0; |
| } |
| |
| static u64 spufs_event_status_get(void *data) |
| { |
| struct spu_context *ctx = data; |
| u64 ret = 0; |
| |
| spu_acquire_saved(ctx); |
| ret = __spufs_event_status_get(data); |
| spu_release_saved(ctx); |
| return ret; |
| } |
| DEFINE_SIMPLE_ATTRIBUTE(spufs_event_status_ops, spufs_event_status_get, |
| NULL, "0x%llx\n") |
| |
| static void spufs_srr0_set(void *data, u64 val) |
| { |
| struct spu_context *ctx = data; |
| struct spu_lscsa *lscsa = ctx->csa.lscsa; |
| spu_acquire_saved(ctx); |
| lscsa->srr0.slot[0] = (u32) val; |
| spu_release_saved(ctx); |
| } |
| |
| static u64 spufs_srr0_get(void *data) |
| { |
| struct spu_context *ctx = data; |
| struct spu_lscsa *lscsa = ctx->csa.lscsa; |
| u64 ret; |
| spu_acquire_saved(ctx); |
| ret = lscsa->srr0.slot[0]; |
| spu_release_saved(ctx); |
| return ret; |
| } |
| DEFINE_SIMPLE_ATTRIBUTE(spufs_srr0_ops, spufs_srr0_get, spufs_srr0_set, |
| "0x%llx\n") |
| |
| static u64 spufs_id_get(void *data) |
| { |
| struct spu_context *ctx = data; |
| u64 num; |
| |
| spu_acquire(ctx); |
| if (ctx->state == SPU_STATE_RUNNABLE) |
| num = ctx->spu->number; |
| else |
| num = (unsigned int)-1; |
| spu_release(ctx); |
| |
| return num; |
| } |
| DEFINE_SIMPLE_ATTRIBUTE(spufs_id_ops, spufs_id_get, NULL, "0x%llx\n") |
| |
| static u64 __spufs_object_id_get(void *data) |
| { |
| struct spu_context *ctx = data; |
| return ctx->object_id; |
| } |
| |
| static u64 spufs_object_id_get(void *data) |
| { |
| /* FIXME: Should there really be no locking here? */ |
| return __spufs_object_id_get(data); |
| } |
| |
| static void spufs_object_id_set(void *data, u64 id) |
| { |
| struct spu_context *ctx = data; |
| ctx->object_id = id; |
| } |
| |
| DEFINE_SIMPLE_ATTRIBUTE(spufs_object_id_ops, spufs_object_id_get, |
| spufs_object_id_set, "0x%llx\n"); |
| |
| static u64 __spufs_lslr_get(void *data) |
| { |
| struct spu_context *ctx = data; |
| return ctx->csa.priv2.spu_lslr_RW; |
| } |
| |
| static u64 spufs_lslr_get(void *data) |
| { |
| struct spu_context *ctx = data; |
| u64 ret; |
| |
| spu_acquire_saved(ctx); |
| ret = __spufs_lslr_get(data); |
| spu_release_saved(ctx); |
| |
| return ret; |
| } |
| DEFINE_SIMPLE_ATTRIBUTE(spufs_lslr_ops, spufs_lslr_get, NULL, "0x%llx\n") |
| |
| static int spufs_info_open(struct inode *inode, struct file *file) |
| { |
| struct spufs_inode_info *i = SPUFS_I(inode); |
| struct spu_context *ctx = i->i_ctx; |
| file->private_data = ctx; |
| return 0; |
| } |
| |
| static int spufs_caps_show(struct seq_file *s, void *private) |
| { |
| struct spu_context *ctx = s->private; |
| |
| if (!(ctx->flags & SPU_CREATE_NOSCHED)) |
| seq_puts(s, "sched\n"); |
| if (!(ctx->flags & SPU_CREATE_ISOLATE)) |
| seq_puts(s, "step\n"); |
| return 0; |
| } |
| |
| static int spufs_caps_open(struct inode *inode, struct file *file) |
| { |
| return single_open(file, spufs_caps_show, SPUFS_I(inode)->i_ctx); |
| } |
| |
| static const struct file_operations spufs_caps_fops = { |
| .open = spufs_caps_open, |
| .read = seq_read, |
| .llseek = seq_lseek, |
| .release = single_release, |
| }; |
| |
| static ssize_t __spufs_mbox_info_read(struct spu_context *ctx, |
| char __user *buf, size_t len, loff_t *pos) |
| { |
| u32 mbox_stat; |
| u32 data; |
| |
| mbox_stat = ctx->csa.prob.mb_stat_R; |
| if (mbox_stat & 0x0000ff) { |
| data = ctx->csa.prob.pu_mb_R; |
| } |
| |
| return simple_read_from_buffer(buf, len, pos, &data, sizeof data); |
| } |
| |
| static ssize_t spufs_mbox_info_read(struct file *file, char __user *buf, |
| size_t len, loff_t *pos) |
| { |
| int ret; |
| struct spu_context *ctx = file->private_data; |
| |
| if (!access_ok(VERIFY_WRITE, buf, len)) |
| return -EFAULT; |
| |
| spu_acquire_saved(ctx); |
| spin_lock(&ctx->csa.register_lock); |
| ret = __spufs_mbox_info_read(ctx, buf, len, pos); |
| spin_unlock(&ctx->csa.register_lock); |
| spu_release_saved(ctx); |
| |
| return ret; |
| } |
| |
| static const struct file_operations spufs_mbox_info_fops = { |
| .open = spufs_info_open, |
| .read = spufs_mbox_info_read, |
| .llseek = generic_file_llseek, |
| }; |
| |
| static ssize_t __spufs_ibox_info_read(struct spu_context *ctx, |
| char __user *buf, size_t len, loff_t *pos) |
| { |
| u32 ibox_stat; |
| u32 data; |
| |
| ibox_stat = ctx->csa.prob.mb_stat_R; |
| if (ibox_stat & 0xff0000) { |
| data = ctx->csa.priv2.puint_mb_R; |
| } |
| |
| return simple_read_from_buffer(buf, len, pos, &data, sizeof data); |
| } |
| |
| static ssize_t spufs_ibox_info_read(struct file *file, char __user *buf, |
| size_t len, loff_t *pos) |
| { |
| struct spu_context *ctx = file->private_data; |
| int ret; |
| |
| if (!access_ok(VERIFY_WRITE, buf, len)) |
| return -EFAULT; |
| |
| spu_acquire_saved(ctx); |
| spin_lock(&ctx->csa.register_lock); |
| ret = __spufs_ibox_info_read(ctx, buf, len, pos); |
| spin_unlock(&ctx->csa.register_lock); |
| spu_release_saved(ctx); |
| |
| return ret; |
| } |
| |
| static const struct file_operations spufs_ibox_info_fops = { |
| .open = spufs_info_open, |
| .read = spufs_ibox_info_read, |
| .llseek = generic_file_llseek, |
| }; |
| |
| static ssize_t __spufs_wbox_info_read(struct spu_context *ctx, |
| char __user *buf, size_t len, loff_t *pos) |
| { |
| int i, cnt; |
| u32 data[4]; |
| u32 wbox_stat; |
| |
| wbox_stat = ctx->csa.prob.mb_stat_R; |
| cnt = 4 - ((wbox_stat & 0x00ff00) >> 8); |
| for (i = 0; i < cnt; i++) { |
| data[i] = ctx->csa.spu_mailbox_data[i]; |
| } |
| |
| return simple_read_from_buffer(buf, len, pos, &data, |
| cnt * sizeof(u32)); |
| } |
| |
| static ssize_t spufs_wbox_info_read(struct file *file, char __user *buf, |
| size_t len, loff_t *pos) |
| { |
| struct spu_context *ctx = file->private_data; |
| int ret; |
| |
| if (!access_ok(VERIFY_WRITE, buf, len)) |
| return -EFAULT; |
| |
| spu_acquire_saved(ctx); |
| spin_lock(&ctx->csa.register_lock); |
| ret = __spufs_wbox_info_read(ctx, buf, len, pos); |
| spin_unlock(&ctx->csa.register_lock); |
| spu_release_saved(ctx); |
| |
| return ret; |
| } |
| |
| static const struct file_operations spufs_wbox_info_fops = { |
| .open = spufs_info_open, |
| .read = spufs_wbox_info_read, |
| .llseek = generic_file_llseek, |
| }; |
| |
| static ssize_t __spufs_dma_info_read(struct spu_context *ctx, |
| char __user *buf, size_t len, loff_t *pos) |
| { |
| struct spu_dma_info info; |
| struct mfc_cq_sr *qp, *spuqp; |
| int i; |
| |
| info.dma_info_type = ctx->csa.priv2.spu_tag_status_query_RW; |
| info.dma_info_mask = ctx->csa.lscsa->tag_mask.slot[0]; |
| info.dma_info_status = ctx->csa.spu_chnldata_RW[24]; |
| info.dma_info_stall_and_notify = ctx->csa.spu_chnldata_RW[25]; |
| info.dma_info_atomic_command_status = ctx->csa.spu_chnldata_RW[27]; |
| for (i = 0; i < 16; i++) { |
| qp = &info.dma_info_command_data[i]; |
| spuqp = &ctx->csa.priv2.spuq[i]; |
| |
| qp->mfc_cq_data0_RW = spuqp->mfc_cq_data0_RW; |
| qp->mfc_cq_data1_RW = spuqp->mfc_cq_data1_RW; |
| qp->mfc_cq_data2_RW = spuqp->mfc_cq_data2_RW; |
| qp->mfc_cq_data3_RW = spuqp->mfc_cq_data3_RW; |
| } |
| |
| return simple_read_from_buffer(buf, len, pos, &info, |
| sizeof info); |
| } |
| |
| static ssize_t spufs_dma_info_read(struct file *file, char __user *buf, |
| size_t len, loff_t *pos) |
| { |
| struct spu_context *ctx = file->private_data; |
| int ret; |
| |
| if (!access_ok(VERIFY_WRITE, buf, len)) |
| return -EFAULT; |
| |
| spu_acquire_saved(ctx); |
| spin_lock(&ctx->csa.register_lock); |
| ret = __spufs_dma_info_read(ctx, buf, len, pos); |
| spin_unlock(&ctx->csa.register_lock); |
| spu_release_saved(ctx); |
| |
| return ret; |
| } |
| |
| static const struct file_operations spufs_dma_info_fops = { |
| .open = spufs_info_open, |
| .read = spufs_dma_info_read, |
| }; |
| |
| static ssize_t __spufs_proxydma_info_read(struct spu_context *ctx, |
| char __user *buf, size_t len, loff_t *pos) |
| { |
| struct spu_proxydma_info info; |
| struct mfc_cq_sr *qp, *puqp; |
| int ret = sizeof info; |
| int i; |
| |
| if (len < ret) |
| return -EINVAL; |
| |
| if (!access_ok(VERIFY_WRITE, buf, len)) |
| return -EFAULT; |
| |
| info.proxydma_info_type = ctx->csa.prob.dma_querytype_RW; |
| info.proxydma_info_mask = ctx->csa.prob.dma_querymask_RW; |
| info.proxydma_info_status = ctx->csa.prob.dma_tagstatus_R; |
| for (i = 0; i < 8; i++) { |
| qp = &info.proxydma_info_command_data[i]; |
| puqp = &ctx->csa.priv2.puq[i]; |
| |
| qp->mfc_cq_data0_RW = puqp->mfc_cq_data0_RW; |
| qp->mfc_cq_data1_RW = puqp->mfc_cq_data1_RW; |
| qp->mfc_cq_data2_RW = puqp->mfc_cq_data2_RW; |
| qp->mfc_cq_data3_RW = puqp->mfc_cq_data3_RW; |
| } |
| |
| return simple_read_from_buffer(buf, len, pos, &info, |
| sizeof info); |
| } |
| |
| static ssize_t spufs_proxydma_info_read(struct file *file, char __user *buf, |
| size_t len, loff_t *pos) |
| { |
| struct spu_context *ctx = file->private_data; |
| int ret; |
| |
| spu_acquire_saved(ctx); |
| spin_lock(&ctx->csa.register_lock); |
| ret = __spufs_proxydma_info_read(ctx, buf, len, pos); |
| spin_unlock(&ctx->csa.register_lock); |
| spu_release_saved(ctx); |
| |
| return ret; |
| } |
| |
| static const struct file_operations spufs_proxydma_info_fops = { |
| .open = spufs_info_open, |
| .read = spufs_proxydma_info_read, |
| }; |
| |
| static int spufs_show_tid(struct seq_file *s, void *private) |
| { |
| struct spu_context *ctx = s->private; |
| |
| seq_printf(s, "%d\n", ctx->tid); |
| return 0; |
| } |
| |
| static int spufs_tid_open(struct inode *inode, struct file *file) |
| { |
| return single_open(file, spufs_show_tid, SPUFS_I(inode)->i_ctx); |
| } |
| |
| static const struct file_operations spufs_tid_fops = { |
| .open = spufs_tid_open, |
| .read = seq_read, |
| .llseek = seq_lseek, |
| .release = single_release, |
| }; |
| |
| static const char *ctx_state_names[] = { |
| "user", "system", "iowait", "loaded" |
| }; |
| |
| static unsigned long long spufs_acct_time(struct spu_context *ctx, |
| enum spu_utilization_state state) |
| { |
| struct timespec ts; |
| unsigned long long time = ctx->stats.times[state]; |
| |
| /* |
| * In general, utilization statistics are updated by the controlling |
| * thread as the spu context moves through various well defined |
| * state transitions, but if the context is lazily loaded its |
| * utilization statistics are not updated as the controlling thread |
| * is not tightly coupled with the execution of the spu context. We |
| * calculate and apply the time delta from the last recorded state |
| * of the spu context. |
| */ |
| if (ctx->spu && ctx->stats.util_state == state) { |
| ktime_get_ts(&ts); |
| time += timespec_to_ns(&ts) - ctx->stats.tstamp; |
| } |
| |
| return time / NSEC_PER_MSEC; |
| } |
| |
| static unsigned long long spufs_slb_flts(struct spu_context *ctx) |
| { |
| unsigned long long slb_flts = ctx->stats.slb_flt; |
| |
| if (ctx->state == SPU_STATE_RUNNABLE) { |
| slb_flts += (ctx->spu->stats.slb_flt - |
| ctx->stats.slb_flt_base); |
| } |
| |
| return slb_flts; |
| } |
| |
| static unsigned long long spufs_class2_intrs(struct spu_context *ctx) |
| { |
| unsigned long long class2_intrs = ctx->stats.class2_intr; |
| |
| if (ctx->state == SPU_STATE_RUNNABLE) { |
| class2_intrs += (ctx->spu->stats.class2_intr - |
| ctx->stats.class2_intr_base); |
| } |
| |
| return class2_intrs; |
| } |
| |
| |
| static int spufs_show_stat(struct seq_file *s, void *private) |
| { |
| struct spu_context *ctx = s->private; |
| |
| spu_acquire(ctx); |
| seq_printf(s, "%s %llu %llu %llu %llu " |
| "%llu %llu %llu %llu %llu %llu %llu %llu\n", |
| ctx_state_names[ctx->stats.util_state], |
| spufs_acct_time(ctx, SPU_UTIL_USER), |
| spufs_acct_time(ctx, SPU_UTIL_SYSTEM), |
| spufs_acct_time(ctx, SPU_UTIL_IOWAIT), |
| spufs_acct_time(ctx, SPU_UTIL_IDLE_LOADED), |
| ctx->stats.vol_ctx_switch, |
| ctx->stats.invol_ctx_switch, |
| spufs_slb_flts(ctx), |
| ctx->stats.hash_flt, |
| ctx->stats.min_flt, |
| ctx->stats.maj_flt, |
| spufs_class2_intrs(ctx), |
| ctx->stats.libassist); |
| spu_release(ctx); |
| return 0; |
| } |
| |
| static int spufs_stat_open(struct inode *inode, struct file *file) |
| { |
| return single_open(file, spufs_show_stat, SPUFS_I(inode)->i_ctx); |
| } |
| |
| static const struct file_operations spufs_stat_fops = { |
| .open = spufs_stat_open, |
| .read = seq_read, |
| .llseek = seq_lseek, |
| .release = single_release, |
| }; |
| |
| |
| struct tree_descr spufs_dir_contents[] = { |
| { "capabilities", &spufs_caps_fops, 0444, }, |
| { "mem", &spufs_mem_fops, 0666, }, |
| { "regs", &spufs_regs_fops, 0666, }, |
| { "mbox", &spufs_mbox_fops, 0444, }, |
| { "ibox", &spufs_ibox_fops, 0444, }, |
| { "wbox", &spufs_wbox_fops, 0222, }, |
| { "mbox_stat", &spufs_mbox_stat_fops, 0444, }, |
| { "ibox_stat", &spufs_ibox_stat_fops, 0444, }, |
| { "wbox_stat", &spufs_wbox_stat_fops, 0444, }, |
| { "signal1", &spufs_signal1_fops, 0666, }, |
| { "signal2", &spufs_signal2_fops, 0666, }, |
| { "signal1_type", &spufs_signal1_type, 0666, }, |
| { "signal2_type", &spufs_signal2_type, 0666, }, |
| { "cntl", &spufs_cntl_fops, 0666, }, |
| { "fpcr", &spufs_fpcr_fops, 0666, }, |
| { "lslr", &spufs_lslr_ops, 0444, }, |
| { "mfc", &spufs_mfc_fops, 0666, }, |
| { "mss", &spufs_mss_fops, 0666, }, |
| { "npc", &spufs_npc_ops, 0666, }, |
| { "srr0", &spufs_srr0_ops, 0666, }, |
| { "decr", &spufs_decr_ops, 0666, }, |
| { "decr_status", &spufs_decr_status_ops, 0666, }, |
| { "event_mask", &spufs_event_mask_ops, 0666, }, |
| { "event_status", &spufs_event_status_ops, 0444, }, |
| { "psmap", &spufs_psmap_fops, 0666, }, |
| { "phys-id", &spufs_id_ops, 0666, }, |
| { "object-id", &spufs_object_id_ops, 0666, }, |
| { "mbox_info", &spufs_mbox_info_fops, 0444, }, |
| { "ibox_info", &spufs_ibox_info_fops, 0444, }, |
| { "wbox_info", &spufs_wbox_info_fops, 0444, }, |
| { "dma_info", &spufs_dma_info_fops, 0444, }, |
| { "proxydma_info", &spufs_proxydma_info_fops, 0444, }, |
| { "tid", &spufs_tid_fops, 0444, }, |
| { "stat", &spufs_stat_fops, 0444, }, |
| {}, |
| }; |
| |
| struct tree_descr spufs_dir_nosched_contents[] = { |
| { "capabilities", &spufs_caps_fops, 0444, }, |
| { "mem", &spufs_mem_fops, 0666, }, |
| { "mbox", &spufs_mbox_fops, 0444, }, |
| { "ibox", &spufs_ibox_fops, 0444, }, |
| { "wbox", &spufs_wbox_fops, 0222, }, |
| { "mbox_stat", &spufs_mbox_stat_fops, 0444, }, |
| { "ibox_stat", &spufs_ibox_stat_fops, 0444, }, |
| { "wbox_stat", &spufs_wbox_stat_fops, 0444, }, |
| { "signal1", &spufs_signal1_nosched_fops, 0222, }, |
| { "signal2", &spufs_signal2_nosched_fops, 0222, }, |
| { "signal1_type", &spufs_signal1_type, 0666, }, |
| { "signal2_type", &spufs_signal2_type, 0666, }, |
| { "mss", &spufs_mss_fops, 0666, }, |
| { "mfc", &spufs_mfc_fops, 0666, }, |
| { "cntl", &spufs_cntl_fops, 0666, }, |
| { "npc", &spufs_npc_ops, 0666, }, |
| { "psmap", &spufs_psmap_fops, 0666, }, |
| { "phys-id", &spufs_id_ops, 0666, }, |
| { "object-id", &spufs_object_id_ops, 0666, }, |
| { "tid", &spufs_tid_fops, 0444, }, |
| { "stat", &spufs_stat_fops, 0444, }, |
| {}, |
| }; |
| |
| struct spufs_coredump_reader spufs_coredump_read[] = { |
| { "regs", __spufs_regs_read, NULL, 128 * 16 }, |
| { "fpcr", __spufs_fpcr_read, NULL, 16 }, |
| { "lslr", NULL, __spufs_lslr_get, 11 }, |
| { "decr", NULL, __spufs_decr_get, 11 }, |
| { "decr_status", NULL, __spufs_decr_status_get, 11 }, |
| { "mem", __spufs_mem_read, NULL, 256 * 1024, }, |
| { "signal1", __spufs_signal1_read, NULL, 4 }, |
| { "signal1_type", NULL, __spufs_signal1_type_get, 2 }, |
| { "signal2", __spufs_signal2_read, NULL, 4 }, |
| { "signal2_type", NULL, __spufs_signal2_type_get, 2 }, |
| { "event_mask", NULL, __spufs_event_mask_get, 8 }, |
| { "event_status", NULL, __spufs_event_status_get, 8 }, |
| { "mbox_info", __spufs_mbox_info_read, NULL, 4 }, |
| { "ibox_info", __spufs_ibox_info_read, NULL, 4 }, |
| { "wbox_info", __spufs_wbox_info_read, NULL, 16 }, |
| { "dma_info", __spufs_dma_info_read, NULL, 69 * 8 }, |
| { "proxydma_info", __spufs_proxydma_info_read, NULL, 35 * 8 }, |
| { "object-id", NULL, __spufs_object_id_get, 19 }, |
| { }, |
| }; |
| int spufs_coredump_num_notes = ARRAY_SIZE(spufs_coredump_read) - 1; |
| |