167207b96SArnd Bergmann /* 267207b96SArnd Bergmann * SPU file system -- file contents 367207b96SArnd Bergmann * 467207b96SArnd Bergmann * (C) Copyright IBM Deutschland Entwicklung GmbH 2005 567207b96SArnd Bergmann * 667207b96SArnd Bergmann * Author: Arnd Bergmann <arndb@de.ibm.com> 767207b96SArnd Bergmann * 867207b96SArnd Bergmann * This program is free software; you can redistribute it and/or modify 967207b96SArnd Bergmann * it under the terms of the GNU General Public License as published by 1067207b96SArnd Bergmann * the Free Software Foundation; either version 2, or (at your option) 1167207b96SArnd Bergmann * any later version. 1267207b96SArnd Bergmann * 1367207b96SArnd Bergmann * This program is distributed in the hope that it will be useful, 1467207b96SArnd Bergmann * but WITHOUT ANY WARRANTY; without even the implied warranty of 1567207b96SArnd Bergmann * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 1667207b96SArnd Bergmann * GNU General Public License for more details. 1767207b96SArnd Bergmann * 1867207b96SArnd Bergmann * You should have received a copy of the GNU General Public License 1967207b96SArnd Bergmann * along with this program; if not, write to the Free Software 2067207b96SArnd Bergmann * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 2167207b96SArnd Bergmann */ 2267207b96SArnd Bergmann 23a33a7d73SArnd Bergmann #undef DEBUG 24a33a7d73SArnd Bergmann 2567207b96SArnd Bergmann #include <linux/fs.h> 2667207b96SArnd Bergmann #include <linux/ioctl.h> 2767207b96SArnd Bergmann #include <linux/module.h> 28d88cfffaSArnd Bergmann #include <linux/pagemap.h> 2967207b96SArnd Bergmann #include <linux/poll.h> 305110459fSArnd Bergmann #include <linux/ptrace.h> 3167207b96SArnd Bergmann 3267207b96SArnd Bergmann #include <asm/io.h> 3367207b96SArnd Bergmann #include <asm/semaphore.h> 3467207b96SArnd Bergmann #include <asm/spu.h> 3567207b96SArnd Bergmann #include <asm/uaccess.h> 3667207b96SArnd Bergmann 3767207b96SArnd Bergmann #include "spufs.h" 3867207b96SArnd Bergmann 398b3d6663SArnd Bergmann 4067207b96SArnd Bergmann static int 4167207b96SArnd Bergmann spufs_mem_open(struct inode *inode, struct file *file) 4267207b96SArnd Bergmann { 4367207b96SArnd Bergmann struct spufs_inode_info *i = SPUFS_I(inode); 446df10a82SMark Nutter struct spu_context *ctx = i->i_ctx; 456df10a82SMark Nutter file->private_data = ctx; 466df10a82SMark Nutter file->f_mapping = inode->i_mapping; 476df10a82SMark Nutter ctx->local_store = inode->i_mapping; 4867207b96SArnd Bergmann return 0; 4967207b96SArnd Bergmann } 5067207b96SArnd Bergmann 5167207b96SArnd Bergmann static ssize_t 5267207b96SArnd Bergmann spufs_mem_read(struct file *file, char __user *buffer, 5367207b96SArnd Bergmann size_t size, loff_t *pos) 5467207b96SArnd Bergmann { 558b3d6663SArnd Bergmann struct spu_context *ctx = file->private_data; 568b3d6663SArnd Bergmann char *local_store; 5767207b96SArnd Bergmann int ret; 5867207b96SArnd Bergmann 598b3d6663SArnd Bergmann spu_acquire(ctx); 6067207b96SArnd Bergmann 618b3d6663SArnd Bergmann local_store = ctx->ops->get_ls(ctx); 628b3d6663SArnd Bergmann ret = simple_read_from_buffer(buffer, size, pos, local_store, LS_SIZE); 6367207b96SArnd Bergmann 648b3d6663SArnd Bergmann spu_release(ctx); 6567207b96SArnd Bergmann return ret; 6667207b96SArnd Bergmann } 6767207b96SArnd Bergmann 6867207b96SArnd Bergmann static ssize_t 6967207b96SArnd Bergmann spufs_mem_write(struct file *file, const char __user *buffer, 7067207b96SArnd Bergmann size_t size, loff_t *pos) 7167207b96SArnd Bergmann { 7267207b96SArnd Bergmann struct spu_context *ctx = file->private_data; 738b3d6663SArnd Bergmann char *local_store; 748b3d6663SArnd Bergmann int ret; 7567207b96SArnd Bergmann 7667207b96SArnd Bergmann size = min_t(ssize_t, LS_SIZE - *pos, size); 7767207b96SArnd Bergmann if (size <= 0) 7867207b96SArnd Bergmann return -EFBIG; 7967207b96SArnd Bergmann *pos += size; 808b3d6663SArnd Bergmann 818b3d6663SArnd Bergmann spu_acquire(ctx); 828b3d6663SArnd Bergmann 838b3d6663SArnd Bergmann local_store = ctx->ops->get_ls(ctx); 848b3d6663SArnd Bergmann ret = copy_from_user(local_store + *pos - size, 8567207b96SArnd Bergmann buffer, size) ? -EFAULT : size; 868b3d6663SArnd Bergmann 878b3d6663SArnd Bergmann spu_release(ctx); 888b3d6663SArnd Bergmann return ret; 8967207b96SArnd Bergmann } 9067207b96SArnd Bergmann 916df10a82SMark Nutter #ifdef CONFIG_SPUFS_MMAP 928b3d6663SArnd Bergmann static struct page * 938b3d6663SArnd Bergmann spufs_mem_mmap_nopage(struct vm_area_struct *vma, 948b3d6663SArnd Bergmann unsigned long address, int *type) 958b3d6663SArnd Bergmann { 968b3d6663SArnd Bergmann struct page *page = NOPAGE_SIGBUS; 978b3d6663SArnd Bergmann 988b3d6663SArnd Bergmann struct spu_context *ctx = vma->vm_file->private_data; 998b3d6663SArnd Bergmann unsigned long offset = address - vma->vm_start; 1008b3d6663SArnd Bergmann offset += vma->vm_pgoff << PAGE_SHIFT; 1018b3d6663SArnd Bergmann 1028b3d6663SArnd Bergmann spu_acquire(ctx); 1038b3d6663SArnd Bergmann 1048b3d6663SArnd Bergmann if (ctx->state == SPU_STATE_SAVED) 1058b3d6663SArnd Bergmann page = vmalloc_to_page(ctx->csa.lscsa->ls + offset); 1068b3d6663SArnd Bergmann else 1078b3d6663SArnd Bergmann page = pfn_to_page((ctx->spu->local_store_phys + offset) 1088b3d6663SArnd Bergmann >> PAGE_SHIFT); 1098b3d6663SArnd Bergmann 1108b3d6663SArnd Bergmann spu_release(ctx); 1118b3d6663SArnd Bergmann 1128b3d6663SArnd Bergmann if (type) 1138b3d6663SArnd Bergmann *type = VM_FAULT_MINOR; 1148b3d6663SArnd Bergmann 115d88cfffaSArnd Bergmann page_cache_get(page); 1168b3d6663SArnd Bergmann return page; 1178b3d6663SArnd Bergmann } 1188b3d6663SArnd Bergmann 1198b3d6663SArnd Bergmann static struct vm_operations_struct spufs_mem_mmap_vmops = { 1208b3d6663SArnd Bergmann .nopage = spufs_mem_mmap_nopage, 1218b3d6663SArnd Bergmann }; 1228b3d6663SArnd Bergmann 12367207b96SArnd Bergmann static int 12467207b96SArnd Bergmann spufs_mem_mmap(struct file *file, struct vm_area_struct *vma) 12567207b96SArnd Bergmann { 1268b3d6663SArnd Bergmann if (!(vma->vm_flags & VM_SHARED)) 1278b3d6663SArnd Bergmann return -EINVAL; 12867207b96SArnd Bergmann 1298b3d6663SArnd Bergmann /* FIXME: */ 13067207b96SArnd Bergmann vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) 13167207b96SArnd Bergmann | _PAGE_NO_CACHE); 1328b3d6663SArnd Bergmann 1338b3d6663SArnd Bergmann vma->vm_ops = &spufs_mem_mmap_vmops; 13467207b96SArnd Bergmann return 0; 13567207b96SArnd Bergmann } 1368b3d6663SArnd Bergmann #endif 13767207b96SArnd Bergmann 13867207b96SArnd Bergmann static struct file_operations spufs_mem_fops = { 13967207b96SArnd Bergmann .open = spufs_mem_open, 14067207b96SArnd Bergmann .read = spufs_mem_read, 14167207b96SArnd Bergmann .write = spufs_mem_write, 1428b3d6663SArnd Bergmann .llseek = generic_file_llseek, 1436df10a82SMark Nutter #ifdef CONFIG_SPUFS_MMAP 14467207b96SArnd Bergmann .mmap = spufs_mem_mmap, 1458b3d6663SArnd Bergmann #endif 1468b3d6663SArnd Bergmann }; 1478b3d6663SArnd Bergmann 1486df10a82SMark Nutter #ifdef CONFIG_SPUFS_MMAP 1496df10a82SMark Nutter static struct page *spufs_ps_nopage(struct vm_area_struct *vma, 1506df10a82SMark Nutter unsigned long address, 1516df10a82SMark Nutter int *type, unsigned long ps_offs) 1526df10a82SMark Nutter { 1536df10a82SMark Nutter struct page *page = NOPAGE_SIGBUS; 1546df10a82SMark Nutter int fault_type = VM_FAULT_SIGBUS; 1556df10a82SMark Nutter struct spu_context *ctx = vma->vm_file->private_data; 1566df10a82SMark Nutter unsigned long offset = address - vma->vm_start; 1576df10a82SMark Nutter unsigned long area; 1586df10a82SMark Nutter int ret; 1596df10a82SMark Nutter 1606df10a82SMark Nutter offset += vma->vm_pgoff << PAGE_SHIFT; 1616df10a82SMark Nutter if (offset >= 0x4000) 1626df10a82SMark Nutter goto out; 1636df10a82SMark Nutter 1646df10a82SMark Nutter ret = spu_acquire_runnable(ctx); 1656df10a82SMark Nutter if (ret) 1666df10a82SMark Nutter goto out; 1676df10a82SMark Nutter 1686df10a82SMark Nutter area = ctx->spu->problem_phys + ps_offs; 1696df10a82SMark Nutter page = pfn_to_page((area + offset) >> PAGE_SHIFT); 1706df10a82SMark Nutter fault_type = VM_FAULT_MINOR; 1716df10a82SMark Nutter page_cache_get(page); 1726df10a82SMark Nutter 1736df10a82SMark Nutter spu_release(ctx); 1746df10a82SMark Nutter 1756df10a82SMark Nutter out: 1766df10a82SMark Nutter if (type) 1776df10a82SMark Nutter *type = fault_type; 1786df10a82SMark Nutter 1796df10a82SMark Nutter return page; 1806df10a82SMark Nutter } 1816df10a82SMark Nutter 1826df10a82SMark Nutter static struct page *spufs_cntl_mmap_nopage(struct vm_area_struct *vma, 1836df10a82SMark Nutter unsigned long address, int *type) 1846df10a82SMark Nutter { 1856df10a82SMark Nutter return spufs_ps_nopage(vma, address, type, 0x4000); 1866df10a82SMark Nutter } 1876df10a82SMark Nutter 1886df10a82SMark Nutter static struct vm_operations_struct spufs_cntl_mmap_vmops = { 1896df10a82SMark Nutter .nopage = spufs_cntl_mmap_nopage, 1906df10a82SMark Nutter }; 1916df10a82SMark Nutter 1926df10a82SMark Nutter /* 1936df10a82SMark Nutter * mmap support for problem state control area [0x4000 - 0x4fff]. 1946df10a82SMark Nutter * Mapping this area requires that the application have CAP_SYS_RAWIO, 1956df10a82SMark Nutter * as these registers require special care when read/writing. 1966df10a82SMark Nutter */ 1976df10a82SMark Nutter static int spufs_cntl_mmap(struct file *file, struct vm_area_struct *vma) 1986df10a82SMark Nutter { 1996df10a82SMark Nutter if (!(vma->vm_flags & VM_SHARED)) 2006df10a82SMark Nutter return -EINVAL; 2016df10a82SMark Nutter 2026df10a82SMark Nutter if (!capable(CAP_SYS_RAWIO)) 2036df10a82SMark Nutter return -EPERM; 2046df10a82SMark Nutter 2056df10a82SMark Nutter vma->vm_flags |= VM_RESERVED; 2066df10a82SMark Nutter vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) 2076df10a82SMark Nutter | _PAGE_NO_CACHE); 2086df10a82SMark Nutter 2096df10a82SMark Nutter vma->vm_ops = &spufs_cntl_mmap_vmops; 2106df10a82SMark Nutter return 0; 2116df10a82SMark Nutter } 2126df10a82SMark Nutter #endif 2136df10a82SMark Nutter 2146df10a82SMark Nutter static int spufs_cntl_open(struct inode *inode, struct file *file) 2156df10a82SMark Nutter { 2166df10a82SMark Nutter struct spufs_inode_info *i = SPUFS_I(inode); 2176df10a82SMark Nutter struct spu_context *ctx = i->i_ctx; 2186df10a82SMark Nutter 2196df10a82SMark Nutter file->private_data = ctx; 2206df10a82SMark Nutter file->f_mapping = inode->i_mapping; 2216df10a82SMark Nutter ctx->cntl = inode->i_mapping; 2226df10a82SMark Nutter return 0; 2236df10a82SMark Nutter } 2246df10a82SMark Nutter 2256df10a82SMark Nutter static ssize_t 2266df10a82SMark Nutter spufs_cntl_read(struct file *file, char __user *buffer, 2276df10a82SMark Nutter size_t size, loff_t *pos) 2286df10a82SMark Nutter { 2296df10a82SMark Nutter /* FIXME: read from spu status */ 2306df10a82SMark Nutter return -EINVAL; 2316df10a82SMark Nutter } 2326df10a82SMark Nutter 2336df10a82SMark Nutter static ssize_t 2346df10a82SMark Nutter spufs_cntl_write(struct file *file, const char __user *buffer, 2356df10a82SMark Nutter size_t size, loff_t *pos) 2366df10a82SMark Nutter { 2376df10a82SMark Nutter /* FIXME: write to runctl bit */ 2386df10a82SMark Nutter return -EINVAL; 2396df10a82SMark Nutter } 2406df10a82SMark Nutter 2416df10a82SMark Nutter static struct file_operations spufs_cntl_fops = { 2426df10a82SMark Nutter .open = spufs_cntl_open, 2436df10a82SMark Nutter .read = spufs_cntl_read, 2446df10a82SMark Nutter .write = spufs_cntl_write, 2456df10a82SMark Nutter #ifdef CONFIG_SPUFS_MMAP 2466df10a82SMark Nutter .mmap = spufs_cntl_mmap, 2476df10a82SMark Nutter #endif 2486df10a82SMark Nutter }; 2496df10a82SMark Nutter 2508b3d6663SArnd Bergmann static int 2518b3d6663SArnd Bergmann spufs_regs_open(struct inode *inode, struct file *file) 2528b3d6663SArnd Bergmann { 2538b3d6663SArnd Bergmann struct spufs_inode_info *i = SPUFS_I(inode); 2548b3d6663SArnd Bergmann file->private_data = i->i_ctx; 2558b3d6663SArnd Bergmann return 0; 2568b3d6663SArnd Bergmann } 2578b3d6663SArnd Bergmann 2588b3d6663SArnd Bergmann static ssize_t 2598b3d6663SArnd Bergmann spufs_regs_read(struct file *file, char __user *buffer, 2608b3d6663SArnd Bergmann size_t size, loff_t *pos) 2618b3d6663SArnd Bergmann { 2628b3d6663SArnd Bergmann struct spu_context *ctx = file->private_data; 2638b3d6663SArnd Bergmann struct spu_lscsa *lscsa = ctx->csa.lscsa; 2648b3d6663SArnd Bergmann int ret; 2658b3d6663SArnd Bergmann 2668b3d6663SArnd Bergmann spu_acquire_saved(ctx); 2678b3d6663SArnd Bergmann 2688b3d6663SArnd Bergmann ret = simple_read_from_buffer(buffer, size, pos, 2698b3d6663SArnd Bergmann lscsa->gprs, sizeof lscsa->gprs); 2708b3d6663SArnd Bergmann 2718b3d6663SArnd Bergmann spu_release(ctx); 2728b3d6663SArnd Bergmann return ret; 2738b3d6663SArnd Bergmann } 2748b3d6663SArnd Bergmann 2758b3d6663SArnd Bergmann static ssize_t 2768b3d6663SArnd Bergmann spufs_regs_write(struct file *file, const char __user *buffer, 2778b3d6663SArnd Bergmann size_t size, loff_t *pos) 2788b3d6663SArnd Bergmann { 2798b3d6663SArnd Bergmann struct spu_context *ctx = file->private_data; 2808b3d6663SArnd Bergmann struct spu_lscsa *lscsa = ctx->csa.lscsa; 2818b3d6663SArnd Bergmann int ret; 2828b3d6663SArnd Bergmann 2838b3d6663SArnd Bergmann size = min_t(ssize_t, sizeof lscsa->gprs - *pos, size); 2848b3d6663SArnd Bergmann if (size <= 0) 2858b3d6663SArnd Bergmann return -EFBIG; 2868b3d6663SArnd Bergmann *pos += size; 2878b3d6663SArnd Bergmann 2888b3d6663SArnd Bergmann spu_acquire_saved(ctx); 2898b3d6663SArnd Bergmann 2908b3d6663SArnd Bergmann ret = copy_from_user(lscsa->gprs + *pos - size, 2918b3d6663SArnd Bergmann buffer, size) ? -EFAULT : size; 2928b3d6663SArnd Bergmann 2938b3d6663SArnd Bergmann spu_release(ctx); 2948b3d6663SArnd Bergmann return ret; 2958b3d6663SArnd Bergmann } 2968b3d6663SArnd Bergmann 2978b3d6663SArnd Bergmann static struct file_operations spufs_regs_fops = { 2988b3d6663SArnd Bergmann .open = spufs_regs_open, 2998b3d6663SArnd Bergmann .read = spufs_regs_read, 3008b3d6663SArnd Bergmann .write = spufs_regs_write, 3018b3d6663SArnd Bergmann .llseek = generic_file_llseek, 3028b3d6663SArnd Bergmann }; 3038b3d6663SArnd Bergmann 3048b3d6663SArnd Bergmann static ssize_t 3058b3d6663SArnd Bergmann spufs_fpcr_read(struct file *file, char __user * buffer, 3068b3d6663SArnd Bergmann size_t size, loff_t * pos) 3078b3d6663SArnd Bergmann { 3088b3d6663SArnd Bergmann struct spu_context *ctx = file->private_data; 3098b3d6663SArnd Bergmann struct spu_lscsa *lscsa = ctx->csa.lscsa; 3108b3d6663SArnd Bergmann int ret; 3118b3d6663SArnd Bergmann 3128b3d6663SArnd Bergmann spu_acquire_saved(ctx); 3138b3d6663SArnd Bergmann 3148b3d6663SArnd Bergmann ret = simple_read_from_buffer(buffer, size, pos, 3158b3d6663SArnd Bergmann &lscsa->fpcr, sizeof(lscsa->fpcr)); 3168b3d6663SArnd Bergmann 3178b3d6663SArnd Bergmann spu_release(ctx); 3188b3d6663SArnd Bergmann return ret; 3198b3d6663SArnd Bergmann } 3208b3d6663SArnd Bergmann 3218b3d6663SArnd Bergmann static ssize_t 3228b3d6663SArnd Bergmann spufs_fpcr_write(struct file *file, const char __user * buffer, 3238b3d6663SArnd Bergmann size_t size, loff_t * pos) 3248b3d6663SArnd Bergmann { 3258b3d6663SArnd Bergmann struct spu_context *ctx = file->private_data; 3268b3d6663SArnd Bergmann struct spu_lscsa *lscsa = ctx->csa.lscsa; 3278b3d6663SArnd Bergmann int ret; 3288b3d6663SArnd Bergmann 3298b3d6663SArnd Bergmann size = min_t(ssize_t, sizeof(lscsa->fpcr) - *pos, size); 3308b3d6663SArnd Bergmann if (size <= 0) 3318b3d6663SArnd Bergmann return -EFBIG; 3328b3d6663SArnd Bergmann *pos += size; 3338b3d6663SArnd Bergmann 3348b3d6663SArnd Bergmann spu_acquire_saved(ctx); 3358b3d6663SArnd Bergmann 3368b3d6663SArnd Bergmann ret = copy_from_user((char *)&lscsa->fpcr + *pos - size, 3378b3d6663SArnd Bergmann buffer, size) ? -EFAULT : size; 3388b3d6663SArnd Bergmann 3398b3d6663SArnd Bergmann spu_release(ctx); 3408b3d6663SArnd Bergmann return ret; 3418b3d6663SArnd Bergmann } 3428b3d6663SArnd Bergmann 3438b3d6663SArnd Bergmann static struct file_operations spufs_fpcr_fops = { 3448b3d6663SArnd Bergmann .open = spufs_regs_open, 3458b3d6663SArnd Bergmann .read = spufs_fpcr_read, 3468b3d6663SArnd Bergmann .write = spufs_fpcr_write, 34767207b96SArnd Bergmann .llseek = generic_file_llseek, 34867207b96SArnd Bergmann }; 34967207b96SArnd Bergmann 35067207b96SArnd Bergmann /* generic open function for all pipe-like files */ 35167207b96SArnd Bergmann static int spufs_pipe_open(struct inode *inode, struct file *file) 35267207b96SArnd Bergmann { 35367207b96SArnd Bergmann struct spufs_inode_info *i = SPUFS_I(inode); 35467207b96SArnd Bergmann file->private_data = i->i_ctx; 35567207b96SArnd Bergmann 35667207b96SArnd Bergmann return nonseekable_open(inode, file); 35767207b96SArnd Bergmann } 35867207b96SArnd Bergmann 35967207b96SArnd Bergmann static ssize_t spufs_mbox_read(struct file *file, char __user *buf, 36067207b96SArnd Bergmann size_t len, loff_t *pos) 36167207b96SArnd Bergmann { 3628b3d6663SArnd Bergmann struct spu_context *ctx = file->private_data; 36367207b96SArnd Bergmann u32 mbox_data; 3648b3d6663SArnd Bergmann int ret; 36567207b96SArnd Bergmann 36667207b96SArnd Bergmann if (len < 4) 36767207b96SArnd Bergmann return -EINVAL; 36867207b96SArnd Bergmann 3698b3d6663SArnd Bergmann spu_acquire(ctx); 3708b3d6663SArnd Bergmann ret = ctx->ops->mbox_read(ctx, &mbox_data); 3718b3d6663SArnd Bergmann spu_release(ctx); 37267207b96SArnd Bergmann 3738b3d6663SArnd Bergmann if (!ret) 3748b3d6663SArnd Bergmann return -EAGAIN; 37567207b96SArnd Bergmann 37667207b96SArnd Bergmann if (copy_to_user(buf, &mbox_data, sizeof mbox_data)) 37767207b96SArnd Bergmann return -EFAULT; 37867207b96SArnd Bergmann 37967207b96SArnd Bergmann return 4; 38067207b96SArnd Bergmann } 38167207b96SArnd Bergmann 38267207b96SArnd Bergmann static struct file_operations spufs_mbox_fops = { 38367207b96SArnd Bergmann .open = spufs_pipe_open, 38467207b96SArnd Bergmann .read = spufs_mbox_read, 38567207b96SArnd Bergmann }; 38667207b96SArnd Bergmann 38767207b96SArnd Bergmann static ssize_t spufs_mbox_stat_read(struct file *file, char __user *buf, 38867207b96SArnd Bergmann size_t len, loff_t *pos) 38967207b96SArnd Bergmann { 3908b3d6663SArnd Bergmann struct spu_context *ctx = file->private_data; 39167207b96SArnd Bergmann u32 mbox_stat; 39267207b96SArnd Bergmann 39367207b96SArnd Bergmann if (len < 4) 39467207b96SArnd Bergmann return -EINVAL; 39567207b96SArnd Bergmann 3968b3d6663SArnd Bergmann spu_acquire(ctx); 3978b3d6663SArnd Bergmann 3988b3d6663SArnd Bergmann mbox_stat = ctx->ops->mbox_stat_read(ctx) & 0xff; 3998b3d6663SArnd Bergmann 4008b3d6663SArnd Bergmann spu_release(ctx); 40167207b96SArnd Bergmann 40267207b96SArnd Bergmann if (copy_to_user(buf, &mbox_stat, sizeof mbox_stat)) 40367207b96SArnd Bergmann return -EFAULT; 40467207b96SArnd Bergmann 40567207b96SArnd Bergmann return 4; 40667207b96SArnd Bergmann } 40767207b96SArnd Bergmann 40867207b96SArnd Bergmann static struct file_operations spufs_mbox_stat_fops = { 40967207b96SArnd Bergmann .open = spufs_pipe_open, 41067207b96SArnd Bergmann .read = spufs_mbox_stat_read, 41167207b96SArnd Bergmann }; 41267207b96SArnd Bergmann 41367207b96SArnd Bergmann /* low-level ibox access function */ 4148b3d6663SArnd Bergmann size_t spu_ibox_read(struct spu_context *ctx, u32 *data) 41567207b96SArnd Bergmann { 4168b3d6663SArnd Bergmann return ctx->ops->ibox_read(ctx, data); 41767207b96SArnd Bergmann } 41867207b96SArnd Bergmann 41967207b96SArnd Bergmann static int spufs_ibox_fasync(int fd, struct file *file, int on) 42067207b96SArnd Bergmann { 4218b3d6663SArnd Bergmann struct spu_context *ctx = file->private_data; 4228b3d6663SArnd Bergmann 4238b3d6663SArnd Bergmann return fasync_helper(fd, file, on, &ctx->ibox_fasync); 4248b3d6663SArnd Bergmann } 4258b3d6663SArnd Bergmann 4268b3d6663SArnd Bergmann /* interrupt-level ibox callback function. */ 4278b3d6663SArnd Bergmann void spufs_ibox_callback(struct spu *spu) 4288b3d6663SArnd Bergmann { 4298b3d6663SArnd Bergmann struct spu_context *ctx = spu->ctx; 4308b3d6663SArnd Bergmann 4318b3d6663SArnd Bergmann wake_up_all(&ctx->ibox_wq); 4328b3d6663SArnd Bergmann kill_fasync(&ctx->ibox_fasync, SIGIO, POLLIN); 43367207b96SArnd Bergmann } 43467207b96SArnd Bergmann 43567207b96SArnd Bergmann static ssize_t spufs_ibox_read(struct file *file, char __user *buf, 43667207b96SArnd Bergmann size_t len, loff_t *pos) 43767207b96SArnd Bergmann { 4388b3d6663SArnd Bergmann struct spu_context *ctx = file->private_data; 43967207b96SArnd Bergmann u32 ibox_data; 44067207b96SArnd Bergmann ssize_t ret; 44167207b96SArnd Bergmann 44267207b96SArnd Bergmann if (len < 4) 44367207b96SArnd Bergmann return -EINVAL; 44467207b96SArnd Bergmann 4458b3d6663SArnd Bergmann spu_acquire(ctx); 44667207b96SArnd Bergmann 44767207b96SArnd Bergmann ret = 0; 44867207b96SArnd Bergmann if (file->f_flags & O_NONBLOCK) { 4498b3d6663SArnd Bergmann if (!spu_ibox_read(ctx, &ibox_data)) 45067207b96SArnd Bergmann ret = -EAGAIN; 45167207b96SArnd Bergmann } else { 4528b3d6663SArnd Bergmann ret = spufs_wait(ctx->ibox_wq, spu_ibox_read(ctx, &ibox_data)); 45367207b96SArnd Bergmann } 45467207b96SArnd Bergmann 4558b3d6663SArnd Bergmann spu_release(ctx); 4568b3d6663SArnd Bergmann 45767207b96SArnd Bergmann if (ret) 45867207b96SArnd Bergmann return ret; 45967207b96SArnd Bergmann 46067207b96SArnd Bergmann ret = 4; 46167207b96SArnd Bergmann if (copy_to_user(buf, &ibox_data, sizeof ibox_data)) 46267207b96SArnd Bergmann ret = -EFAULT; 46367207b96SArnd Bergmann 46467207b96SArnd Bergmann return ret; 46567207b96SArnd Bergmann } 46667207b96SArnd Bergmann 46767207b96SArnd Bergmann static unsigned int spufs_ibox_poll(struct file *file, poll_table *wait) 46867207b96SArnd Bergmann { 4698b3d6663SArnd Bergmann struct spu_context *ctx = file->private_data; 47067207b96SArnd Bergmann unsigned int mask; 47167207b96SArnd Bergmann 4728b3d6663SArnd Bergmann poll_wait(file, &ctx->ibox_wq, wait); 47367207b96SArnd Bergmann 4743a843d7cSArnd Bergmann spu_acquire(ctx); 4753a843d7cSArnd Bergmann mask = ctx->ops->mbox_stat_poll(ctx, POLLIN | POLLRDNORM); 4763a843d7cSArnd Bergmann spu_release(ctx); 47767207b96SArnd Bergmann 47867207b96SArnd Bergmann return mask; 47967207b96SArnd Bergmann } 48067207b96SArnd Bergmann 48167207b96SArnd Bergmann static struct file_operations spufs_ibox_fops = { 48267207b96SArnd Bergmann .open = spufs_pipe_open, 48367207b96SArnd Bergmann .read = spufs_ibox_read, 48467207b96SArnd Bergmann .poll = spufs_ibox_poll, 48567207b96SArnd Bergmann .fasync = spufs_ibox_fasync, 48667207b96SArnd Bergmann }; 48767207b96SArnd Bergmann 48867207b96SArnd Bergmann static ssize_t spufs_ibox_stat_read(struct file *file, char __user *buf, 48967207b96SArnd Bergmann size_t len, loff_t *pos) 49067207b96SArnd Bergmann { 4918b3d6663SArnd Bergmann struct spu_context *ctx = file->private_data; 49267207b96SArnd Bergmann u32 ibox_stat; 49367207b96SArnd Bergmann 49467207b96SArnd Bergmann if (len < 4) 49567207b96SArnd Bergmann return -EINVAL; 49667207b96SArnd Bergmann 4978b3d6663SArnd Bergmann spu_acquire(ctx); 4988b3d6663SArnd Bergmann ibox_stat = (ctx->ops->mbox_stat_read(ctx) >> 16) & 0xff; 4998b3d6663SArnd Bergmann spu_release(ctx); 50067207b96SArnd Bergmann 50167207b96SArnd Bergmann if (copy_to_user(buf, &ibox_stat, sizeof ibox_stat)) 50267207b96SArnd Bergmann return -EFAULT; 50367207b96SArnd Bergmann 50467207b96SArnd Bergmann return 4; 50567207b96SArnd Bergmann } 50667207b96SArnd Bergmann 50767207b96SArnd Bergmann static struct file_operations spufs_ibox_stat_fops = { 50867207b96SArnd Bergmann .open = spufs_pipe_open, 50967207b96SArnd Bergmann .read = spufs_ibox_stat_read, 51067207b96SArnd Bergmann }; 51167207b96SArnd Bergmann 51267207b96SArnd Bergmann /* low-level mailbox write */ 5138b3d6663SArnd Bergmann size_t spu_wbox_write(struct spu_context *ctx, u32 data) 51467207b96SArnd Bergmann { 5158b3d6663SArnd Bergmann return ctx->ops->wbox_write(ctx, data); 51667207b96SArnd Bergmann } 51767207b96SArnd Bergmann 51867207b96SArnd Bergmann static int spufs_wbox_fasync(int fd, struct file *file, int on) 51967207b96SArnd Bergmann { 5208b3d6663SArnd Bergmann struct spu_context *ctx = file->private_data; 5218b3d6663SArnd Bergmann int ret; 5228b3d6663SArnd Bergmann 5238b3d6663SArnd Bergmann ret = fasync_helper(fd, file, on, &ctx->wbox_fasync); 5248b3d6663SArnd Bergmann 5258b3d6663SArnd Bergmann return ret; 5268b3d6663SArnd Bergmann } 5278b3d6663SArnd Bergmann 5288b3d6663SArnd Bergmann /* interrupt-level wbox callback function. */ 5298b3d6663SArnd Bergmann void spufs_wbox_callback(struct spu *spu) 5308b3d6663SArnd Bergmann { 5318b3d6663SArnd Bergmann struct spu_context *ctx = spu->ctx; 5328b3d6663SArnd Bergmann 5338b3d6663SArnd Bergmann wake_up_all(&ctx->wbox_wq); 5348b3d6663SArnd Bergmann kill_fasync(&ctx->wbox_fasync, SIGIO, POLLOUT); 53567207b96SArnd Bergmann } 53667207b96SArnd Bergmann 53767207b96SArnd Bergmann static ssize_t spufs_wbox_write(struct file *file, const char __user *buf, 53867207b96SArnd Bergmann size_t len, loff_t *pos) 53967207b96SArnd Bergmann { 5408b3d6663SArnd Bergmann struct spu_context *ctx = file->private_data; 54167207b96SArnd Bergmann u32 wbox_data; 54267207b96SArnd Bergmann int ret; 54367207b96SArnd Bergmann 54467207b96SArnd Bergmann if (len < 4) 54567207b96SArnd Bergmann return -EINVAL; 54667207b96SArnd Bergmann 54767207b96SArnd Bergmann if (copy_from_user(&wbox_data, buf, sizeof wbox_data)) 54867207b96SArnd Bergmann return -EFAULT; 54967207b96SArnd Bergmann 5508b3d6663SArnd Bergmann spu_acquire(ctx); 5518b3d6663SArnd Bergmann 55267207b96SArnd Bergmann ret = 0; 55367207b96SArnd Bergmann if (file->f_flags & O_NONBLOCK) { 5548b3d6663SArnd Bergmann if (!spu_wbox_write(ctx, wbox_data)) 55567207b96SArnd Bergmann ret = -EAGAIN; 55667207b96SArnd Bergmann } else { 5578b3d6663SArnd Bergmann ret = spufs_wait(ctx->wbox_wq, spu_wbox_write(ctx, wbox_data)); 55867207b96SArnd Bergmann } 55967207b96SArnd Bergmann 5608b3d6663SArnd Bergmann spu_release(ctx); 5618b3d6663SArnd Bergmann 56267207b96SArnd Bergmann return ret ? ret : sizeof wbox_data; 56367207b96SArnd Bergmann } 56467207b96SArnd Bergmann 56567207b96SArnd Bergmann static unsigned int spufs_wbox_poll(struct file *file, poll_table *wait) 56667207b96SArnd Bergmann { 5678b3d6663SArnd Bergmann struct spu_context *ctx = file->private_data; 56867207b96SArnd Bergmann unsigned int mask; 56967207b96SArnd Bergmann 5708b3d6663SArnd Bergmann poll_wait(file, &ctx->wbox_wq, wait); 57167207b96SArnd Bergmann 5723a843d7cSArnd Bergmann spu_acquire(ctx); 5733a843d7cSArnd Bergmann mask = ctx->ops->mbox_stat_poll(ctx, POLLOUT | POLLWRNORM); 5743a843d7cSArnd Bergmann spu_release(ctx); 57567207b96SArnd Bergmann 57667207b96SArnd Bergmann return mask; 57767207b96SArnd Bergmann } 57867207b96SArnd Bergmann 57967207b96SArnd Bergmann static struct file_operations spufs_wbox_fops = { 58067207b96SArnd Bergmann .open = spufs_pipe_open, 58167207b96SArnd Bergmann .write = spufs_wbox_write, 58267207b96SArnd Bergmann .poll = spufs_wbox_poll, 58367207b96SArnd Bergmann .fasync = spufs_wbox_fasync, 58467207b96SArnd Bergmann }; 58567207b96SArnd Bergmann 58667207b96SArnd Bergmann static ssize_t spufs_wbox_stat_read(struct file *file, char __user *buf, 58767207b96SArnd Bergmann size_t len, loff_t *pos) 58867207b96SArnd Bergmann { 5898b3d6663SArnd Bergmann struct spu_context *ctx = file->private_data; 59067207b96SArnd Bergmann u32 wbox_stat; 59167207b96SArnd Bergmann 59267207b96SArnd Bergmann if (len < 4) 59367207b96SArnd Bergmann return -EINVAL; 59467207b96SArnd Bergmann 5958b3d6663SArnd Bergmann spu_acquire(ctx); 5968b3d6663SArnd Bergmann wbox_stat = (ctx->ops->mbox_stat_read(ctx) >> 8) & 0xff; 5978b3d6663SArnd Bergmann spu_release(ctx); 59867207b96SArnd Bergmann 59967207b96SArnd Bergmann if (copy_to_user(buf, &wbox_stat, sizeof wbox_stat)) 60067207b96SArnd Bergmann return -EFAULT; 60167207b96SArnd Bergmann 60267207b96SArnd Bergmann return 4; 60367207b96SArnd Bergmann } 60467207b96SArnd Bergmann 60567207b96SArnd Bergmann static struct file_operations spufs_wbox_stat_fops = { 60667207b96SArnd Bergmann .open = spufs_pipe_open, 60767207b96SArnd Bergmann .read = spufs_wbox_stat_read, 60867207b96SArnd Bergmann }; 60967207b96SArnd Bergmann 6106df10a82SMark Nutter static int spufs_signal1_open(struct inode *inode, struct file *file) 6116df10a82SMark Nutter { 6126df10a82SMark Nutter struct spufs_inode_info *i = SPUFS_I(inode); 6136df10a82SMark Nutter struct spu_context *ctx = i->i_ctx; 6146df10a82SMark Nutter file->private_data = ctx; 6156df10a82SMark Nutter file->f_mapping = inode->i_mapping; 6166df10a82SMark Nutter ctx->signal1 = inode->i_mapping; 6176df10a82SMark Nutter return nonseekable_open(inode, file); 6186df10a82SMark Nutter } 6196df10a82SMark Nutter 62067207b96SArnd Bergmann static ssize_t spufs_signal1_read(struct file *file, char __user *buf, 62167207b96SArnd Bergmann size_t len, loff_t *pos) 62267207b96SArnd Bergmann { 6238b3d6663SArnd Bergmann struct spu_context *ctx = file->private_data; 62467207b96SArnd Bergmann u32 data; 62567207b96SArnd Bergmann 62667207b96SArnd Bergmann if (len < 4) 62767207b96SArnd Bergmann return -EINVAL; 62867207b96SArnd Bergmann 6298b3d6663SArnd Bergmann spu_acquire(ctx); 6308b3d6663SArnd Bergmann data = ctx->ops->signal1_read(ctx); 6318b3d6663SArnd Bergmann spu_release(ctx); 6328b3d6663SArnd Bergmann 63367207b96SArnd Bergmann if (copy_to_user(buf, &data, 4)) 63467207b96SArnd Bergmann return -EFAULT; 63567207b96SArnd Bergmann 63667207b96SArnd Bergmann return 4; 63767207b96SArnd Bergmann } 63867207b96SArnd Bergmann 63967207b96SArnd Bergmann static ssize_t spufs_signal1_write(struct file *file, const char __user *buf, 64067207b96SArnd Bergmann size_t len, loff_t *pos) 64167207b96SArnd Bergmann { 64267207b96SArnd Bergmann struct spu_context *ctx; 64367207b96SArnd Bergmann u32 data; 64467207b96SArnd Bergmann 64567207b96SArnd Bergmann ctx = file->private_data; 64667207b96SArnd Bergmann 64767207b96SArnd Bergmann if (len < 4) 64867207b96SArnd Bergmann return -EINVAL; 64967207b96SArnd Bergmann 65067207b96SArnd Bergmann if (copy_from_user(&data, buf, 4)) 65167207b96SArnd Bergmann return -EFAULT; 65267207b96SArnd Bergmann 6538b3d6663SArnd Bergmann spu_acquire(ctx); 6548b3d6663SArnd Bergmann ctx->ops->signal1_write(ctx, data); 6558b3d6663SArnd Bergmann spu_release(ctx); 65667207b96SArnd Bergmann 65767207b96SArnd Bergmann return 4; 65867207b96SArnd Bergmann } 65967207b96SArnd Bergmann 6606df10a82SMark Nutter #ifdef CONFIG_SPUFS_MMAP 6616df10a82SMark Nutter static struct page *spufs_signal1_mmap_nopage(struct vm_area_struct *vma, 6626df10a82SMark Nutter unsigned long address, int *type) 6636df10a82SMark Nutter { 6646df10a82SMark Nutter return spufs_ps_nopage(vma, address, type, 0x14000); 6656df10a82SMark Nutter } 6666df10a82SMark Nutter 6676df10a82SMark Nutter static struct vm_operations_struct spufs_signal1_mmap_vmops = { 6686df10a82SMark Nutter .nopage = spufs_signal1_mmap_nopage, 6696df10a82SMark Nutter }; 6706df10a82SMark Nutter 6716df10a82SMark Nutter static int spufs_signal1_mmap(struct file *file, struct vm_area_struct *vma) 6726df10a82SMark Nutter { 6736df10a82SMark Nutter if (!(vma->vm_flags & VM_SHARED)) 6746df10a82SMark Nutter return -EINVAL; 6756df10a82SMark Nutter 6766df10a82SMark Nutter vma->vm_flags |= VM_RESERVED; 6776df10a82SMark Nutter vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) 6786df10a82SMark Nutter | _PAGE_NO_CACHE); 6796df10a82SMark Nutter 6806df10a82SMark Nutter vma->vm_ops = &spufs_signal1_mmap_vmops; 6816df10a82SMark Nutter return 0; 6826df10a82SMark Nutter } 6836df10a82SMark Nutter #endif 6846df10a82SMark Nutter 68567207b96SArnd Bergmann static struct file_operations spufs_signal1_fops = { 6866df10a82SMark Nutter .open = spufs_signal1_open, 68767207b96SArnd Bergmann .read = spufs_signal1_read, 68867207b96SArnd Bergmann .write = spufs_signal1_write, 6896df10a82SMark Nutter #ifdef CONFIG_SPUFS_MMAP 6906df10a82SMark Nutter .mmap = spufs_signal1_mmap, 6916df10a82SMark Nutter #endif 69267207b96SArnd Bergmann }; 69367207b96SArnd Bergmann 6946df10a82SMark Nutter static int spufs_signal2_open(struct inode *inode, struct file *file) 6956df10a82SMark Nutter { 6966df10a82SMark Nutter struct spufs_inode_info *i = SPUFS_I(inode); 6976df10a82SMark Nutter struct spu_context *ctx = i->i_ctx; 6986df10a82SMark Nutter file->private_data = ctx; 6996df10a82SMark Nutter file->f_mapping = inode->i_mapping; 7006df10a82SMark Nutter ctx->signal2 = inode->i_mapping; 7016df10a82SMark Nutter return nonseekable_open(inode, file); 7026df10a82SMark Nutter } 7036df10a82SMark Nutter 70467207b96SArnd Bergmann static ssize_t spufs_signal2_read(struct file *file, char __user *buf, 70567207b96SArnd Bergmann size_t len, loff_t *pos) 70667207b96SArnd Bergmann { 70767207b96SArnd Bergmann struct spu_context *ctx; 70867207b96SArnd Bergmann u32 data; 70967207b96SArnd Bergmann 71067207b96SArnd Bergmann ctx = file->private_data; 71167207b96SArnd Bergmann 71267207b96SArnd Bergmann if (len < 4) 71367207b96SArnd Bergmann return -EINVAL; 71467207b96SArnd Bergmann 7158b3d6663SArnd Bergmann spu_acquire(ctx); 7168b3d6663SArnd Bergmann data = ctx->ops->signal2_read(ctx); 7178b3d6663SArnd Bergmann spu_release(ctx); 7188b3d6663SArnd Bergmann 71967207b96SArnd Bergmann if (copy_to_user(buf, &data, 4)) 72067207b96SArnd Bergmann return -EFAULT; 72167207b96SArnd Bergmann 72267207b96SArnd Bergmann return 4; 72367207b96SArnd Bergmann } 72467207b96SArnd Bergmann 72567207b96SArnd Bergmann static ssize_t spufs_signal2_write(struct file *file, const char __user *buf, 72667207b96SArnd Bergmann size_t len, loff_t *pos) 72767207b96SArnd Bergmann { 72867207b96SArnd Bergmann struct spu_context *ctx; 72967207b96SArnd Bergmann u32 data; 73067207b96SArnd Bergmann 73167207b96SArnd Bergmann ctx = file->private_data; 73267207b96SArnd Bergmann 73367207b96SArnd Bergmann if (len < 4) 73467207b96SArnd Bergmann return -EINVAL; 73567207b96SArnd Bergmann 73667207b96SArnd Bergmann if (copy_from_user(&data, buf, 4)) 73767207b96SArnd Bergmann return -EFAULT; 73867207b96SArnd Bergmann 7398b3d6663SArnd Bergmann spu_acquire(ctx); 7408b3d6663SArnd Bergmann ctx->ops->signal2_write(ctx, data); 7418b3d6663SArnd Bergmann spu_release(ctx); 74267207b96SArnd Bergmann 74367207b96SArnd Bergmann return 4; 74467207b96SArnd Bergmann } 74567207b96SArnd Bergmann 7466df10a82SMark Nutter #ifdef CONFIG_SPUFS_MMAP 7476df10a82SMark Nutter static struct page *spufs_signal2_mmap_nopage(struct vm_area_struct *vma, 7486df10a82SMark Nutter unsigned long address, int *type) 7496df10a82SMark Nutter { 7506df10a82SMark Nutter return spufs_ps_nopage(vma, address, type, 0x1c000); 7516df10a82SMark Nutter } 7526df10a82SMark Nutter 7536df10a82SMark Nutter static struct vm_operations_struct spufs_signal2_mmap_vmops = { 7546df10a82SMark Nutter .nopage = spufs_signal2_mmap_nopage, 7556df10a82SMark Nutter }; 7566df10a82SMark Nutter 7576df10a82SMark Nutter static int spufs_signal2_mmap(struct file *file, struct vm_area_struct *vma) 7586df10a82SMark Nutter { 7596df10a82SMark Nutter if (!(vma->vm_flags & VM_SHARED)) 7606df10a82SMark Nutter return -EINVAL; 7616df10a82SMark Nutter 7626df10a82SMark Nutter /* FIXME: */ 7636df10a82SMark Nutter vma->vm_flags |= VM_RESERVED; 7646df10a82SMark Nutter vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) 7656df10a82SMark Nutter | _PAGE_NO_CACHE); 7666df10a82SMark Nutter 7676df10a82SMark Nutter vma->vm_ops = &spufs_signal2_mmap_vmops; 7686df10a82SMark Nutter return 0; 7696df10a82SMark Nutter } 7706df10a82SMark Nutter #endif 7716df10a82SMark Nutter 77267207b96SArnd Bergmann static struct file_operations spufs_signal2_fops = { 7736df10a82SMark Nutter .open = spufs_signal2_open, 77467207b96SArnd Bergmann .read = spufs_signal2_read, 77567207b96SArnd Bergmann .write = spufs_signal2_write, 7766df10a82SMark Nutter #ifdef CONFIG_SPUFS_MMAP 7776df10a82SMark Nutter .mmap = spufs_signal2_mmap, 7786df10a82SMark Nutter #endif 77967207b96SArnd Bergmann }; 78067207b96SArnd Bergmann 78167207b96SArnd Bergmann static void spufs_signal1_type_set(void *data, u64 val) 78267207b96SArnd Bergmann { 78367207b96SArnd Bergmann struct spu_context *ctx = data; 78467207b96SArnd Bergmann 7858b3d6663SArnd Bergmann spu_acquire(ctx); 7868b3d6663SArnd Bergmann ctx->ops->signal1_type_set(ctx, val); 7878b3d6663SArnd Bergmann spu_release(ctx); 78867207b96SArnd Bergmann } 78967207b96SArnd Bergmann 79067207b96SArnd Bergmann static u64 spufs_signal1_type_get(void *data) 79167207b96SArnd Bergmann { 79267207b96SArnd Bergmann struct spu_context *ctx = data; 7938b3d6663SArnd Bergmann u64 ret; 7948b3d6663SArnd Bergmann 7958b3d6663SArnd Bergmann spu_acquire(ctx); 7968b3d6663SArnd Bergmann ret = ctx->ops->signal1_type_get(ctx); 7978b3d6663SArnd Bergmann spu_release(ctx); 7988b3d6663SArnd Bergmann 7998b3d6663SArnd Bergmann return ret; 80067207b96SArnd Bergmann } 80167207b96SArnd Bergmann DEFINE_SIMPLE_ATTRIBUTE(spufs_signal1_type, spufs_signal1_type_get, 80267207b96SArnd Bergmann spufs_signal1_type_set, "%llu"); 80367207b96SArnd Bergmann 80467207b96SArnd Bergmann static void spufs_signal2_type_set(void *data, u64 val) 80567207b96SArnd Bergmann { 80667207b96SArnd Bergmann struct spu_context *ctx = data; 80767207b96SArnd Bergmann 8088b3d6663SArnd Bergmann spu_acquire(ctx); 8098b3d6663SArnd Bergmann ctx->ops->signal2_type_set(ctx, val); 8108b3d6663SArnd Bergmann spu_release(ctx); 81167207b96SArnd Bergmann } 81267207b96SArnd Bergmann 81367207b96SArnd Bergmann static u64 spufs_signal2_type_get(void *data) 81467207b96SArnd Bergmann { 81567207b96SArnd Bergmann struct spu_context *ctx = data; 8168b3d6663SArnd Bergmann u64 ret; 8178b3d6663SArnd Bergmann 8188b3d6663SArnd Bergmann spu_acquire(ctx); 8198b3d6663SArnd Bergmann ret = ctx->ops->signal2_type_get(ctx); 8208b3d6663SArnd Bergmann spu_release(ctx); 8218b3d6663SArnd Bergmann 8228b3d6663SArnd Bergmann return ret; 82367207b96SArnd Bergmann } 82467207b96SArnd Bergmann DEFINE_SIMPLE_ATTRIBUTE(spufs_signal2_type, spufs_signal2_type_get, 82567207b96SArnd Bergmann spufs_signal2_type_set, "%llu"); 82667207b96SArnd Bergmann 8276df10a82SMark Nutter #ifdef CONFIG_SPUFS_MMAP 828d9379c4bSarnd@arndb.de static struct page *spufs_mss_mmap_nopage(struct vm_area_struct *vma, 829d9379c4bSarnd@arndb.de unsigned long address, int *type) 830d9379c4bSarnd@arndb.de { 831d9379c4bSarnd@arndb.de return spufs_ps_nopage(vma, address, type, 0x0000); 832d9379c4bSarnd@arndb.de } 833d9379c4bSarnd@arndb.de 834d9379c4bSarnd@arndb.de static struct vm_operations_struct spufs_mss_mmap_vmops = { 835d9379c4bSarnd@arndb.de .nopage = spufs_mss_mmap_nopage, 836d9379c4bSarnd@arndb.de }; 837d9379c4bSarnd@arndb.de 838d9379c4bSarnd@arndb.de /* 839d9379c4bSarnd@arndb.de * mmap support for problem state MFC DMA area [0x0000 - 0x0fff]. 840d9379c4bSarnd@arndb.de * Mapping this area requires that the application have CAP_SYS_RAWIO, 841d9379c4bSarnd@arndb.de * as these registers require special care when read/writing. 842d9379c4bSarnd@arndb.de */ 843d9379c4bSarnd@arndb.de static int spufs_mss_mmap(struct file *file, struct vm_area_struct *vma) 844d9379c4bSarnd@arndb.de { 845d9379c4bSarnd@arndb.de if (!(vma->vm_flags & VM_SHARED)) 846d9379c4bSarnd@arndb.de return -EINVAL; 847d9379c4bSarnd@arndb.de 848d9379c4bSarnd@arndb.de if (!capable(CAP_SYS_RAWIO)) 849d9379c4bSarnd@arndb.de return -EPERM; 850d9379c4bSarnd@arndb.de 851d9379c4bSarnd@arndb.de vma->vm_flags |= VM_RESERVED; 852d9379c4bSarnd@arndb.de vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) 853d9379c4bSarnd@arndb.de | _PAGE_NO_CACHE); 854d9379c4bSarnd@arndb.de 855d9379c4bSarnd@arndb.de vma->vm_ops = &spufs_mss_mmap_vmops; 856d9379c4bSarnd@arndb.de return 0; 857d9379c4bSarnd@arndb.de } 858d9379c4bSarnd@arndb.de #endif 859d9379c4bSarnd@arndb.de 860d9379c4bSarnd@arndb.de static int spufs_mss_open(struct inode *inode, struct file *file) 861d9379c4bSarnd@arndb.de { 862d9379c4bSarnd@arndb.de struct spufs_inode_info *i = SPUFS_I(inode); 863d9379c4bSarnd@arndb.de 864d9379c4bSarnd@arndb.de file->private_data = i->i_ctx; 865d9379c4bSarnd@arndb.de return nonseekable_open(inode, file); 866d9379c4bSarnd@arndb.de } 867d9379c4bSarnd@arndb.de 868d9379c4bSarnd@arndb.de static struct file_operations spufs_mss_fops = { 869d9379c4bSarnd@arndb.de .open = spufs_mss_open, 870d9379c4bSarnd@arndb.de #ifdef CONFIG_SPUFS_MMAP 871d9379c4bSarnd@arndb.de .mmap = spufs_mss_mmap, 872d9379c4bSarnd@arndb.de #endif 873d9379c4bSarnd@arndb.de }; 874d9379c4bSarnd@arndb.de 875d9379c4bSarnd@arndb.de 876d9379c4bSarnd@arndb.de #ifdef CONFIG_SPUFS_MMAP 8776df10a82SMark Nutter static struct page *spufs_mfc_mmap_nopage(struct vm_area_struct *vma, 8786df10a82SMark Nutter unsigned long address, int *type) 8796df10a82SMark Nutter { 8806df10a82SMark Nutter return spufs_ps_nopage(vma, address, type, 0x3000); 8816df10a82SMark Nutter } 8826df10a82SMark Nutter 8836df10a82SMark Nutter static struct vm_operations_struct spufs_mfc_mmap_vmops = { 8846df10a82SMark Nutter .nopage = spufs_mfc_mmap_nopage, 8856df10a82SMark Nutter }; 8866df10a82SMark Nutter 8876df10a82SMark Nutter /* 8886df10a82SMark Nutter * mmap support for problem state MFC DMA area [0x0000 - 0x0fff]. 8896df10a82SMark Nutter * Mapping this area requires that the application have CAP_SYS_RAWIO, 8906df10a82SMark Nutter * as these registers require special care when read/writing. 8916df10a82SMark Nutter */ 8926df10a82SMark Nutter static int spufs_mfc_mmap(struct file *file, struct vm_area_struct *vma) 8936df10a82SMark Nutter { 8946df10a82SMark Nutter if (!(vma->vm_flags & VM_SHARED)) 8956df10a82SMark Nutter return -EINVAL; 8966df10a82SMark Nutter 8976df10a82SMark Nutter if (!capable(CAP_SYS_RAWIO)) 8986df10a82SMark Nutter return -EPERM; 8996df10a82SMark Nutter 9006df10a82SMark Nutter vma->vm_flags |= VM_RESERVED; 9016df10a82SMark Nutter vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) 9026df10a82SMark Nutter | _PAGE_NO_CACHE); 9036df10a82SMark Nutter 9046df10a82SMark Nutter vma->vm_ops = &spufs_mfc_mmap_vmops; 9056df10a82SMark Nutter return 0; 9066df10a82SMark Nutter } 9076df10a82SMark Nutter #endif 908a33a7d73SArnd Bergmann 909a33a7d73SArnd Bergmann static int spufs_mfc_open(struct inode *inode, struct file *file) 910a33a7d73SArnd Bergmann { 911a33a7d73SArnd Bergmann struct spufs_inode_info *i = SPUFS_I(inode); 912a33a7d73SArnd Bergmann struct spu_context *ctx = i->i_ctx; 913a33a7d73SArnd Bergmann 914a33a7d73SArnd Bergmann /* we don't want to deal with DMA into other processes */ 915a33a7d73SArnd Bergmann if (ctx->owner != current->mm) 916a33a7d73SArnd Bergmann return -EINVAL; 917a33a7d73SArnd Bergmann 918a33a7d73SArnd Bergmann if (atomic_read(&inode->i_count) != 1) 919a33a7d73SArnd Bergmann return -EBUSY; 920a33a7d73SArnd Bergmann 921a33a7d73SArnd Bergmann file->private_data = ctx; 922a33a7d73SArnd Bergmann return nonseekable_open(inode, file); 923a33a7d73SArnd Bergmann } 924a33a7d73SArnd Bergmann 925a33a7d73SArnd Bergmann /* interrupt-level mfc callback function. */ 926a33a7d73SArnd Bergmann void spufs_mfc_callback(struct spu *spu) 927a33a7d73SArnd Bergmann { 928a33a7d73SArnd Bergmann struct spu_context *ctx = spu->ctx; 929a33a7d73SArnd Bergmann 930a33a7d73SArnd Bergmann wake_up_all(&ctx->mfc_wq); 931a33a7d73SArnd Bergmann 932a33a7d73SArnd Bergmann pr_debug("%s %s\n", __FUNCTION__, spu->name); 933a33a7d73SArnd Bergmann if (ctx->mfc_fasync) { 934a33a7d73SArnd Bergmann u32 free_elements, tagstatus; 935a33a7d73SArnd Bergmann unsigned int mask; 936a33a7d73SArnd Bergmann 937a33a7d73SArnd Bergmann /* no need for spu_acquire in interrupt context */ 938a33a7d73SArnd Bergmann free_elements = ctx->ops->get_mfc_free_elements(ctx); 939a33a7d73SArnd Bergmann tagstatus = ctx->ops->read_mfc_tagstatus(ctx); 940a33a7d73SArnd Bergmann 941a33a7d73SArnd Bergmann mask = 0; 942a33a7d73SArnd Bergmann if (free_elements & 0xffff) 943a33a7d73SArnd Bergmann mask |= POLLOUT; 944a33a7d73SArnd Bergmann if (tagstatus & ctx->tagwait) 945a33a7d73SArnd Bergmann mask |= POLLIN; 946a33a7d73SArnd Bergmann 947a33a7d73SArnd Bergmann kill_fasync(&ctx->mfc_fasync, SIGIO, mask); 948a33a7d73SArnd Bergmann } 949a33a7d73SArnd Bergmann } 950a33a7d73SArnd Bergmann 951a33a7d73SArnd Bergmann static int spufs_read_mfc_tagstatus(struct spu_context *ctx, u32 *status) 952a33a7d73SArnd Bergmann { 953a33a7d73SArnd Bergmann /* See if there is one tag group is complete */ 954a33a7d73SArnd Bergmann /* FIXME we need locking around tagwait */ 955a33a7d73SArnd Bergmann *status = ctx->ops->read_mfc_tagstatus(ctx) & ctx->tagwait; 956a33a7d73SArnd Bergmann ctx->tagwait &= ~*status; 957a33a7d73SArnd Bergmann if (*status) 958a33a7d73SArnd Bergmann return 1; 959a33a7d73SArnd Bergmann 960a33a7d73SArnd Bergmann /* enable interrupt waiting for any tag group, 961a33a7d73SArnd Bergmann may silently fail if interrupts are already enabled */ 962a33a7d73SArnd Bergmann ctx->ops->set_mfc_query(ctx, ctx->tagwait, 1); 963a33a7d73SArnd Bergmann return 0; 964a33a7d73SArnd Bergmann } 965a33a7d73SArnd Bergmann 966a33a7d73SArnd Bergmann static ssize_t spufs_mfc_read(struct file *file, char __user *buffer, 967a33a7d73SArnd Bergmann size_t size, loff_t *pos) 968a33a7d73SArnd Bergmann { 969a33a7d73SArnd Bergmann struct spu_context *ctx = file->private_data; 970a33a7d73SArnd Bergmann int ret = -EINVAL; 971a33a7d73SArnd Bergmann u32 status; 972a33a7d73SArnd Bergmann 973a33a7d73SArnd Bergmann if (size != 4) 974a33a7d73SArnd Bergmann goto out; 975a33a7d73SArnd Bergmann 976a33a7d73SArnd Bergmann spu_acquire(ctx); 977a33a7d73SArnd Bergmann if (file->f_flags & O_NONBLOCK) { 978a33a7d73SArnd Bergmann status = ctx->ops->read_mfc_tagstatus(ctx); 979a33a7d73SArnd Bergmann if (!(status & ctx->tagwait)) 980a33a7d73SArnd Bergmann ret = -EAGAIN; 981a33a7d73SArnd Bergmann else 982a33a7d73SArnd Bergmann ctx->tagwait &= ~status; 983a33a7d73SArnd Bergmann } else { 984a33a7d73SArnd Bergmann ret = spufs_wait(ctx->mfc_wq, 985a33a7d73SArnd Bergmann spufs_read_mfc_tagstatus(ctx, &status)); 986a33a7d73SArnd Bergmann } 987a33a7d73SArnd Bergmann spu_release(ctx); 988a33a7d73SArnd Bergmann 989a33a7d73SArnd Bergmann if (ret) 990a33a7d73SArnd Bergmann goto out; 991a33a7d73SArnd Bergmann 992a33a7d73SArnd Bergmann ret = 4; 993a33a7d73SArnd Bergmann if (copy_to_user(buffer, &status, 4)) 994a33a7d73SArnd Bergmann ret = -EFAULT; 995a33a7d73SArnd Bergmann 996a33a7d73SArnd Bergmann out: 997a33a7d73SArnd Bergmann return ret; 998a33a7d73SArnd Bergmann } 999a33a7d73SArnd Bergmann 1000a33a7d73SArnd Bergmann static int spufs_check_valid_dma(struct mfc_dma_command *cmd) 1001a33a7d73SArnd Bergmann { 1002a33a7d73SArnd Bergmann pr_debug("queueing DMA %x %lx %x %x %x\n", cmd->lsa, 1003a33a7d73SArnd Bergmann cmd->ea, cmd->size, cmd->tag, cmd->cmd); 1004a33a7d73SArnd Bergmann 1005a33a7d73SArnd Bergmann switch (cmd->cmd) { 1006a33a7d73SArnd Bergmann case MFC_PUT_CMD: 1007a33a7d73SArnd Bergmann case MFC_PUTF_CMD: 1008a33a7d73SArnd Bergmann case MFC_PUTB_CMD: 1009a33a7d73SArnd Bergmann case MFC_GET_CMD: 1010a33a7d73SArnd Bergmann case MFC_GETF_CMD: 1011a33a7d73SArnd Bergmann case MFC_GETB_CMD: 1012a33a7d73SArnd Bergmann break; 1013a33a7d73SArnd Bergmann default: 1014a33a7d73SArnd Bergmann pr_debug("invalid DMA opcode %x\n", cmd->cmd); 1015a33a7d73SArnd Bergmann return -EIO; 1016a33a7d73SArnd Bergmann } 1017a33a7d73SArnd Bergmann 1018a33a7d73SArnd Bergmann if ((cmd->lsa & 0xf) != (cmd->ea &0xf)) { 1019a33a7d73SArnd Bergmann pr_debug("invalid DMA alignment, ea %lx lsa %x\n", 1020a33a7d73SArnd Bergmann cmd->ea, cmd->lsa); 1021a33a7d73SArnd Bergmann return -EIO; 1022a33a7d73SArnd Bergmann } 1023a33a7d73SArnd Bergmann 1024a33a7d73SArnd Bergmann switch (cmd->size & 0xf) { 1025a33a7d73SArnd Bergmann case 1: 1026a33a7d73SArnd Bergmann break; 1027a33a7d73SArnd Bergmann case 2: 1028a33a7d73SArnd Bergmann if (cmd->lsa & 1) 1029a33a7d73SArnd Bergmann goto error; 1030a33a7d73SArnd Bergmann break; 1031a33a7d73SArnd Bergmann case 4: 1032a33a7d73SArnd Bergmann if (cmd->lsa & 3) 1033a33a7d73SArnd Bergmann goto error; 1034a33a7d73SArnd Bergmann break; 1035a33a7d73SArnd Bergmann case 8: 1036a33a7d73SArnd Bergmann if (cmd->lsa & 7) 1037a33a7d73SArnd Bergmann goto error; 1038a33a7d73SArnd Bergmann break; 1039a33a7d73SArnd Bergmann case 0: 1040a33a7d73SArnd Bergmann if (cmd->lsa & 15) 1041a33a7d73SArnd Bergmann goto error; 1042a33a7d73SArnd Bergmann break; 1043a33a7d73SArnd Bergmann error: 1044a33a7d73SArnd Bergmann default: 1045a33a7d73SArnd Bergmann pr_debug("invalid DMA alignment %x for size %x\n", 1046a33a7d73SArnd Bergmann cmd->lsa & 0xf, cmd->size); 1047a33a7d73SArnd Bergmann return -EIO; 1048a33a7d73SArnd Bergmann } 1049a33a7d73SArnd Bergmann 1050a33a7d73SArnd Bergmann if (cmd->size > 16 * 1024) { 1051a33a7d73SArnd Bergmann pr_debug("invalid DMA size %x\n", cmd->size); 1052a33a7d73SArnd Bergmann return -EIO; 1053a33a7d73SArnd Bergmann } 1054a33a7d73SArnd Bergmann 1055a33a7d73SArnd Bergmann if (cmd->tag & 0xfff0) { 1056a33a7d73SArnd Bergmann /* we reserve the higher tag numbers for kernel use */ 1057a33a7d73SArnd Bergmann pr_debug("invalid DMA tag\n"); 1058a33a7d73SArnd Bergmann return -EIO; 1059a33a7d73SArnd Bergmann } 1060a33a7d73SArnd Bergmann 1061a33a7d73SArnd Bergmann if (cmd->class) { 1062a33a7d73SArnd Bergmann /* not supported in this version */ 1063a33a7d73SArnd Bergmann pr_debug("invalid DMA class\n"); 1064a33a7d73SArnd Bergmann return -EIO; 1065a33a7d73SArnd Bergmann } 1066a33a7d73SArnd Bergmann 1067a33a7d73SArnd Bergmann return 0; 1068a33a7d73SArnd Bergmann } 1069a33a7d73SArnd Bergmann 1070a33a7d73SArnd Bergmann static int spu_send_mfc_command(struct spu_context *ctx, 1071a33a7d73SArnd Bergmann struct mfc_dma_command cmd, 1072a33a7d73SArnd Bergmann int *error) 1073a33a7d73SArnd Bergmann { 1074a33a7d73SArnd Bergmann *error = ctx->ops->send_mfc_command(ctx, &cmd); 1075a33a7d73SArnd Bergmann if (*error == -EAGAIN) { 1076a33a7d73SArnd Bergmann /* wait for any tag group to complete 1077a33a7d73SArnd Bergmann so we have space for the new command */ 1078a33a7d73SArnd Bergmann ctx->ops->set_mfc_query(ctx, ctx->tagwait, 1); 1079a33a7d73SArnd Bergmann /* try again, because the queue might be 1080a33a7d73SArnd Bergmann empty again */ 1081a33a7d73SArnd Bergmann *error = ctx->ops->send_mfc_command(ctx, &cmd); 1082a33a7d73SArnd Bergmann if (*error == -EAGAIN) 1083a33a7d73SArnd Bergmann return 0; 1084a33a7d73SArnd Bergmann } 1085a33a7d73SArnd Bergmann return 1; 1086a33a7d73SArnd Bergmann } 1087a33a7d73SArnd Bergmann 1088a33a7d73SArnd Bergmann static ssize_t spufs_mfc_write(struct file *file, const char __user *buffer, 1089a33a7d73SArnd Bergmann size_t size, loff_t *pos) 1090a33a7d73SArnd Bergmann { 1091a33a7d73SArnd Bergmann struct spu_context *ctx = file->private_data; 1092a33a7d73SArnd Bergmann struct mfc_dma_command cmd; 1093a33a7d73SArnd Bergmann int ret = -EINVAL; 1094a33a7d73SArnd Bergmann 1095a33a7d73SArnd Bergmann if (size != sizeof cmd) 1096a33a7d73SArnd Bergmann goto out; 1097a33a7d73SArnd Bergmann 1098a33a7d73SArnd Bergmann ret = -EFAULT; 1099a33a7d73SArnd Bergmann if (copy_from_user(&cmd, buffer, sizeof cmd)) 1100a33a7d73SArnd Bergmann goto out; 1101a33a7d73SArnd Bergmann 1102a33a7d73SArnd Bergmann ret = spufs_check_valid_dma(&cmd); 1103a33a7d73SArnd Bergmann if (ret) 1104a33a7d73SArnd Bergmann goto out; 1105a33a7d73SArnd Bergmann 1106a33a7d73SArnd Bergmann spu_acquire_runnable(ctx); 1107a33a7d73SArnd Bergmann if (file->f_flags & O_NONBLOCK) { 1108a33a7d73SArnd Bergmann ret = ctx->ops->send_mfc_command(ctx, &cmd); 1109a33a7d73SArnd Bergmann } else { 1110a33a7d73SArnd Bergmann int status; 1111a33a7d73SArnd Bergmann ret = spufs_wait(ctx->mfc_wq, 1112a33a7d73SArnd Bergmann spu_send_mfc_command(ctx, cmd, &status)); 1113a33a7d73SArnd Bergmann if (status) 1114a33a7d73SArnd Bergmann ret = status; 1115a33a7d73SArnd Bergmann } 1116a33a7d73SArnd Bergmann spu_release(ctx); 1117a33a7d73SArnd Bergmann 1118a33a7d73SArnd Bergmann if (ret) 1119a33a7d73SArnd Bergmann goto out; 1120a33a7d73SArnd Bergmann 1121a33a7d73SArnd Bergmann ctx->tagwait |= 1 << cmd.tag; 1122a33a7d73SArnd Bergmann 1123a33a7d73SArnd Bergmann out: 1124a33a7d73SArnd Bergmann return ret; 1125a33a7d73SArnd Bergmann } 1126a33a7d73SArnd Bergmann 1127a33a7d73SArnd Bergmann static unsigned int spufs_mfc_poll(struct file *file,poll_table *wait) 1128a33a7d73SArnd Bergmann { 1129a33a7d73SArnd Bergmann struct spu_context *ctx = file->private_data; 1130a33a7d73SArnd Bergmann u32 free_elements, tagstatus; 1131a33a7d73SArnd Bergmann unsigned int mask; 1132a33a7d73SArnd Bergmann 1133a33a7d73SArnd Bergmann spu_acquire(ctx); 1134a33a7d73SArnd Bergmann ctx->ops->set_mfc_query(ctx, ctx->tagwait, 2); 1135a33a7d73SArnd Bergmann free_elements = ctx->ops->get_mfc_free_elements(ctx); 1136a33a7d73SArnd Bergmann tagstatus = ctx->ops->read_mfc_tagstatus(ctx); 1137a33a7d73SArnd Bergmann spu_release(ctx); 1138a33a7d73SArnd Bergmann 1139a33a7d73SArnd Bergmann poll_wait(file, &ctx->mfc_wq, wait); 1140a33a7d73SArnd Bergmann 1141a33a7d73SArnd Bergmann mask = 0; 1142a33a7d73SArnd Bergmann if (free_elements & 0xffff) 1143a33a7d73SArnd Bergmann mask |= POLLOUT | POLLWRNORM; 1144a33a7d73SArnd Bergmann if (tagstatus & ctx->tagwait) 1145a33a7d73SArnd Bergmann mask |= POLLIN | POLLRDNORM; 1146a33a7d73SArnd Bergmann 1147a33a7d73SArnd Bergmann pr_debug("%s: free %d tagstatus %d tagwait %d\n", __FUNCTION__, 1148a33a7d73SArnd Bergmann free_elements, tagstatus, ctx->tagwait); 1149a33a7d73SArnd Bergmann 1150a33a7d73SArnd Bergmann return mask; 1151a33a7d73SArnd Bergmann } 1152a33a7d73SArnd Bergmann 1153a33a7d73SArnd Bergmann static int spufs_mfc_flush(struct file *file) 1154a33a7d73SArnd Bergmann { 1155a33a7d73SArnd Bergmann struct spu_context *ctx = file->private_data; 1156a33a7d73SArnd Bergmann int ret; 1157a33a7d73SArnd Bergmann 1158a33a7d73SArnd Bergmann spu_acquire(ctx); 1159a33a7d73SArnd Bergmann #if 0 1160a33a7d73SArnd Bergmann /* this currently hangs */ 1161a33a7d73SArnd Bergmann ret = spufs_wait(ctx->mfc_wq, 1162a33a7d73SArnd Bergmann ctx->ops->set_mfc_query(ctx, ctx->tagwait, 2)); 1163a33a7d73SArnd Bergmann if (ret) 1164a33a7d73SArnd Bergmann goto out; 1165a33a7d73SArnd Bergmann ret = spufs_wait(ctx->mfc_wq, 1166a33a7d73SArnd Bergmann ctx->ops->read_mfc_tagstatus(ctx) == ctx->tagwait); 1167a33a7d73SArnd Bergmann out: 1168a33a7d73SArnd Bergmann #else 1169a33a7d73SArnd Bergmann ret = 0; 1170a33a7d73SArnd Bergmann #endif 1171a33a7d73SArnd Bergmann spu_release(ctx); 1172a33a7d73SArnd Bergmann 1173a33a7d73SArnd Bergmann return ret; 1174a33a7d73SArnd Bergmann } 1175a33a7d73SArnd Bergmann 1176a33a7d73SArnd Bergmann static int spufs_mfc_fsync(struct file *file, struct dentry *dentry, 1177a33a7d73SArnd Bergmann int datasync) 1178a33a7d73SArnd Bergmann { 1179a33a7d73SArnd Bergmann return spufs_mfc_flush(file); 1180a33a7d73SArnd Bergmann } 1181a33a7d73SArnd Bergmann 1182a33a7d73SArnd Bergmann static int spufs_mfc_fasync(int fd, struct file *file, int on) 1183a33a7d73SArnd Bergmann { 1184a33a7d73SArnd Bergmann struct spu_context *ctx = file->private_data; 1185a33a7d73SArnd Bergmann 1186a33a7d73SArnd Bergmann return fasync_helper(fd, file, on, &ctx->mfc_fasync); 1187a33a7d73SArnd Bergmann } 1188a33a7d73SArnd Bergmann 1189a33a7d73SArnd Bergmann static struct file_operations spufs_mfc_fops = { 1190a33a7d73SArnd Bergmann .open = spufs_mfc_open, 1191a33a7d73SArnd Bergmann .read = spufs_mfc_read, 1192a33a7d73SArnd Bergmann .write = spufs_mfc_write, 1193a33a7d73SArnd Bergmann .poll = spufs_mfc_poll, 1194a33a7d73SArnd Bergmann .flush = spufs_mfc_flush, 1195a33a7d73SArnd Bergmann .fsync = spufs_mfc_fsync, 1196a33a7d73SArnd Bergmann .fasync = spufs_mfc_fasync, 11976df10a82SMark Nutter #ifdef CONFIG_SPUFS_MMAP 11986df10a82SMark Nutter .mmap = spufs_mfc_mmap, 11996df10a82SMark Nutter #endif 1200a33a7d73SArnd Bergmann }; 1201a33a7d73SArnd Bergmann 120267207b96SArnd Bergmann static void spufs_npc_set(void *data, u64 val) 120367207b96SArnd Bergmann { 120467207b96SArnd Bergmann struct spu_context *ctx = data; 12058b3d6663SArnd Bergmann spu_acquire(ctx); 12068b3d6663SArnd Bergmann ctx->ops->npc_write(ctx, val); 12078b3d6663SArnd Bergmann spu_release(ctx); 120867207b96SArnd Bergmann } 120967207b96SArnd Bergmann 121067207b96SArnd Bergmann static u64 spufs_npc_get(void *data) 121167207b96SArnd Bergmann { 121267207b96SArnd Bergmann struct spu_context *ctx = data; 121367207b96SArnd Bergmann u64 ret; 12148b3d6663SArnd Bergmann spu_acquire(ctx); 12158b3d6663SArnd Bergmann ret = ctx->ops->npc_read(ctx); 12168b3d6663SArnd Bergmann spu_release(ctx); 121767207b96SArnd Bergmann return ret; 121867207b96SArnd Bergmann } 121967207b96SArnd Bergmann DEFINE_SIMPLE_ATTRIBUTE(spufs_npc_ops, spufs_npc_get, spufs_npc_set, "%llx\n") 122067207b96SArnd Bergmann 12218b3d6663SArnd Bergmann static void spufs_decr_set(void *data, u64 val) 12228b3d6663SArnd Bergmann { 12238b3d6663SArnd Bergmann struct spu_context *ctx = data; 12248b3d6663SArnd Bergmann struct spu_lscsa *lscsa = ctx->csa.lscsa; 12258b3d6663SArnd Bergmann spu_acquire_saved(ctx); 12268b3d6663SArnd Bergmann lscsa->decr.slot[0] = (u32) val; 12278b3d6663SArnd Bergmann spu_release(ctx); 12288b3d6663SArnd Bergmann } 12298b3d6663SArnd Bergmann 12308b3d6663SArnd Bergmann static u64 spufs_decr_get(void *data) 12318b3d6663SArnd Bergmann { 12328b3d6663SArnd Bergmann struct spu_context *ctx = data; 12338b3d6663SArnd Bergmann struct spu_lscsa *lscsa = ctx->csa.lscsa; 12348b3d6663SArnd Bergmann u64 ret; 12358b3d6663SArnd Bergmann spu_acquire_saved(ctx); 12368b3d6663SArnd Bergmann ret = lscsa->decr.slot[0]; 12378b3d6663SArnd Bergmann spu_release(ctx); 12388b3d6663SArnd Bergmann return ret; 12398b3d6663SArnd Bergmann } 12408b3d6663SArnd Bergmann DEFINE_SIMPLE_ATTRIBUTE(spufs_decr_ops, spufs_decr_get, spufs_decr_set, 12418b3d6663SArnd Bergmann "%llx\n") 12428b3d6663SArnd Bergmann 12438b3d6663SArnd Bergmann static void spufs_decr_status_set(void *data, u64 val) 12448b3d6663SArnd Bergmann { 12458b3d6663SArnd Bergmann struct spu_context *ctx = data; 12468b3d6663SArnd Bergmann struct spu_lscsa *lscsa = ctx->csa.lscsa; 12478b3d6663SArnd Bergmann spu_acquire_saved(ctx); 12488b3d6663SArnd Bergmann lscsa->decr_status.slot[0] = (u32) val; 12498b3d6663SArnd Bergmann spu_release(ctx); 12508b3d6663SArnd Bergmann } 12518b3d6663SArnd Bergmann 12528b3d6663SArnd Bergmann static u64 spufs_decr_status_get(void *data) 12538b3d6663SArnd Bergmann { 12548b3d6663SArnd Bergmann struct spu_context *ctx = data; 12558b3d6663SArnd Bergmann struct spu_lscsa *lscsa = ctx->csa.lscsa; 12568b3d6663SArnd Bergmann u64 ret; 12578b3d6663SArnd Bergmann spu_acquire_saved(ctx); 12588b3d6663SArnd Bergmann ret = lscsa->decr_status.slot[0]; 12598b3d6663SArnd Bergmann spu_release(ctx); 12608b3d6663SArnd Bergmann return ret; 12618b3d6663SArnd Bergmann } 12628b3d6663SArnd Bergmann DEFINE_SIMPLE_ATTRIBUTE(spufs_decr_status_ops, spufs_decr_status_get, 12638b3d6663SArnd Bergmann spufs_decr_status_set, "%llx\n") 12648b3d6663SArnd Bergmann 12658b3d6663SArnd Bergmann static void spufs_spu_tag_mask_set(void *data, u64 val) 12668b3d6663SArnd Bergmann { 12678b3d6663SArnd Bergmann struct spu_context *ctx = data; 12688b3d6663SArnd Bergmann struct spu_lscsa *lscsa = ctx->csa.lscsa; 12698b3d6663SArnd Bergmann spu_acquire_saved(ctx); 12708b3d6663SArnd Bergmann lscsa->tag_mask.slot[0] = (u32) val; 12718b3d6663SArnd Bergmann spu_release(ctx); 12728b3d6663SArnd Bergmann } 12738b3d6663SArnd Bergmann 12748b3d6663SArnd Bergmann static u64 spufs_spu_tag_mask_get(void *data) 12758b3d6663SArnd Bergmann { 12768b3d6663SArnd Bergmann struct spu_context *ctx = data; 12778b3d6663SArnd Bergmann struct spu_lscsa *lscsa = ctx->csa.lscsa; 12788b3d6663SArnd Bergmann u64 ret; 12798b3d6663SArnd Bergmann spu_acquire_saved(ctx); 12808b3d6663SArnd Bergmann ret = lscsa->tag_mask.slot[0]; 12818b3d6663SArnd Bergmann spu_release(ctx); 12828b3d6663SArnd Bergmann return ret; 12838b3d6663SArnd Bergmann } 12848b3d6663SArnd Bergmann DEFINE_SIMPLE_ATTRIBUTE(spufs_spu_tag_mask_ops, spufs_spu_tag_mask_get, 12858b3d6663SArnd Bergmann spufs_spu_tag_mask_set, "%llx\n") 12868b3d6663SArnd Bergmann 12878b3d6663SArnd Bergmann static void spufs_event_mask_set(void *data, u64 val) 12888b3d6663SArnd Bergmann { 12898b3d6663SArnd Bergmann struct spu_context *ctx = data; 12908b3d6663SArnd Bergmann struct spu_lscsa *lscsa = ctx->csa.lscsa; 12918b3d6663SArnd Bergmann spu_acquire_saved(ctx); 12928b3d6663SArnd Bergmann lscsa->event_mask.slot[0] = (u32) val; 12938b3d6663SArnd Bergmann spu_release(ctx); 12948b3d6663SArnd Bergmann } 12958b3d6663SArnd Bergmann 12968b3d6663SArnd Bergmann static u64 spufs_event_mask_get(void *data) 12978b3d6663SArnd Bergmann { 12988b3d6663SArnd Bergmann struct spu_context *ctx = data; 12998b3d6663SArnd Bergmann struct spu_lscsa *lscsa = ctx->csa.lscsa; 13008b3d6663SArnd Bergmann u64 ret; 13018b3d6663SArnd Bergmann spu_acquire_saved(ctx); 13028b3d6663SArnd Bergmann ret = lscsa->event_mask.slot[0]; 13038b3d6663SArnd Bergmann spu_release(ctx); 13048b3d6663SArnd Bergmann return ret; 13058b3d6663SArnd Bergmann } 13068b3d6663SArnd Bergmann DEFINE_SIMPLE_ATTRIBUTE(spufs_event_mask_ops, spufs_event_mask_get, 13078b3d6663SArnd Bergmann spufs_event_mask_set, "%llx\n") 13088b3d6663SArnd Bergmann 13098b3d6663SArnd Bergmann static void spufs_srr0_set(void *data, u64 val) 13108b3d6663SArnd Bergmann { 13118b3d6663SArnd Bergmann struct spu_context *ctx = data; 13128b3d6663SArnd Bergmann struct spu_lscsa *lscsa = ctx->csa.lscsa; 13138b3d6663SArnd Bergmann spu_acquire_saved(ctx); 13148b3d6663SArnd Bergmann lscsa->srr0.slot[0] = (u32) val; 13158b3d6663SArnd Bergmann spu_release(ctx); 13168b3d6663SArnd Bergmann } 13178b3d6663SArnd Bergmann 13188b3d6663SArnd Bergmann static u64 spufs_srr0_get(void *data) 13198b3d6663SArnd Bergmann { 13208b3d6663SArnd Bergmann struct spu_context *ctx = data; 13218b3d6663SArnd Bergmann struct spu_lscsa *lscsa = ctx->csa.lscsa; 13228b3d6663SArnd Bergmann u64 ret; 13238b3d6663SArnd Bergmann spu_acquire_saved(ctx); 13248b3d6663SArnd Bergmann ret = lscsa->srr0.slot[0]; 13258b3d6663SArnd Bergmann spu_release(ctx); 13268b3d6663SArnd Bergmann return ret; 13278b3d6663SArnd Bergmann } 13288b3d6663SArnd Bergmann DEFINE_SIMPLE_ATTRIBUTE(spufs_srr0_ops, spufs_srr0_get, spufs_srr0_set, 13298b3d6663SArnd Bergmann "%llx\n") 13308b3d6663SArnd Bergmann 133167207b96SArnd Bergmann struct tree_descr spufs_dir_contents[] = { 133267207b96SArnd Bergmann { "mem", &spufs_mem_fops, 0666, }, 13338b3d6663SArnd Bergmann { "regs", &spufs_regs_fops, 0666, }, 133467207b96SArnd Bergmann { "mbox", &spufs_mbox_fops, 0444, }, 133567207b96SArnd Bergmann { "ibox", &spufs_ibox_fops, 0444, }, 133667207b96SArnd Bergmann { "wbox", &spufs_wbox_fops, 0222, }, 133767207b96SArnd Bergmann { "mbox_stat", &spufs_mbox_stat_fops, 0444, }, 133867207b96SArnd Bergmann { "ibox_stat", &spufs_ibox_stat_fops, 0444, }, 133967207b96SArnd Bergmann { "wbox_stat", &spufs_wbox_stat_fops, 0444, }, 134067207b96SArnd Bergmann { "signal1", &spufs_signal1_fops, 0666, }, 134167207b96SArnd Bergmann { "signal2", &spufs_signal2_fops, 0666, }, 134267207b96SArnd Bergmann { "signal1_type", &spufs_signal1_type, 0666, }, 134367207b96SArnd Bergmann { "signal2_type", &spufs_signal2_type, 0666, }, 1344d9379c4bSarnd@arndb.de { "mss", &spufs_mss_fops, 0666, }, 1345a33a7d73SArnd Bergmann { "mfc", &spufs_mfc_fops, 0666, }, 13466df10a82SMark Nutter { "cntl", &spufs_cntl_fops, 0666, }, 134767207b96SArnd Bergmann { "npc", &spufs_npc_ops, 0666, }, 13488b3d6663SArnd Bergmann { "fpcr", &spufs_fpcr_fops, 0666, }, 13498b3d6663SArnd Bergmann { "decr", &spufs_decr_ops, 0666, }, 13508b3d6663SArnd Bergmann { "decr_status", &spufs_decr_status_ops, 0666, }, 13518b3d6663SArnd Bergmann { "spu_tag_mask", &spufs_spu_tag_mask_ops, 0666, }, 13528b3d6663SArnd Bergmann { "event_mask", &spufs_event_mask_ops, 0666, }, 13538b3d6663SArnd Bergmann { "srr0", &spufs_srr0_ops, 0666, }, 135467207b96SArnd Bergmann {}, 135567207b96SArnd Bergmann }; 1356