file.c (3d6b040e73387570521da4aedfd03d2643acdae7) file.c (0b3f9c757cabad4b8101c5fcddddd029ed5506a6)
1/*
2 * Copyright 2014 IBM Corp.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 */

--- 59 unchanged lines hidden (view full) ---

68 goto err_put_adapter;
69 }
70 get_device(&afu->dev);
71 spin_unlock(&adapter->afu_list_lock);
72
73 if (!afu->current_mode)
74 goto err_put_afu;
75
1/*
2 * Copyright 2014 IBM Corp.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 */

--- 59 unchanged lines hidden (view full) ---

68 goto err_put_adapter;
69 }
70 get_device(&afu->dev);
71 spin_unlock(&adapter->afu_list_lock);
72
73 if (!afu->current_mode)
74 goto err_put_afu;
75
76 if (!cxl_adapter_link_ok(adapter)) {
77 rc = -EIO;
78 goto err_put_afu;
79 }
80
76 if (!(ctx = cxl_context_alloc())) {
77 rc = -ENOMEM;
78 goto err_put_afu;
79 }
80
81 if ((rc = cxl_context_init(ctx, afu, master, inode->i_mapping)))
82 goto err_put_afu;
83

--- 149 unchanged lines hidden (view full) ---

233
234long afu_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
235{
236 struct cxl_context *ctx = file->private_data;
237
238 if (ctx->status == CLOSED)
239 return -EIO;
240
81 if (!(ctx = cxl_context_alloc())) {
82 rc = -ENOMEM;
83 goto err_put_afu;
84 }
85
86 if ((rc = cxl_context_init(ctx, afu, master, inode->i_mapping)))
87 goto err_put_afu;
88

--- 149 unchanged lines hidden (view full) ---

238
239long afu_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
240{
241 struct cxl_context *ctx = file->private_data;
242
243 if (ctx->status == CLOSED)
244 return -EIO;
245
246 if (!cxl_adapter_link_ok(ctx->afu->adapter))
247 return -EIO;
248
241 pr_devel("afu_ioctl\n");
242 switch (cmd) {
243 case CXL_IOCTL_START_WORK:
244 return afu_ioctl_start_work(ctx, (struct cxl_ioctl_start_work __user *)arg);
245 case CXL_IOCTL_GET_PROCESS_ELEMENT:
246 return afu_ioctl_process_element(ctx, (__u32 __user *)arg);
247 case CXL_IOCTL_GET_AFU_ID:
248 return afu_ioctl_get_afu_id(ctx, (struct cxl_afu_id __user *)

--- 11 unchanged lines hidden (view full) ---

260int afu_mmap(struct file *file, struct vm_area_struct *vm)
261{
262 struct cxl_context *ctx = file->private_data;
263
264 /* AFU must be started before we can MMIO */
265 if (ctx->status != STARTED)
266 return -EIO;
267
249 pr_devel("afu_ioctl\n");
250 switch (cmd) {
251 case CXL_IOCTL_START_WORK:
252 return afu_ioctl_start_work(ctx, (struct cxl_ioctl_start_work __user *)arg);
253 case CXL_IOCTL_GET_PROCESS_ELEMENT:
254 return afu_ioctl_process_element(ctx, (__u32 __user *)arg);
255 case CXL_IOCTL_GET_AFU_ID:
256 return afu_ioctl_get_afu_id(ctx, (struct cxl_afu_id __user *)

--- 11 unchanged lines hidden (view full) ---

268int afu_mmap(struct file *file, struct vm_area_struct *vm)
269{
270 struct cxl_context *ctx = file->private_data;
271
272 /* AFU must be started before we can MMIO */
273 if (ctx->status != STARTED)
274 return -EIO;
275
276 if (!cxl_adapter_link_ok(ctx->afu->adapter))
277 return -EIO;
278
268 return cxl_context_iomap(ctx, vm);
269}
270
271unsigned int afu_poll(struct file *file, struct poll_table_struct *poll)
272{
273 struct cxl_context *ctx = file->private_data;
274 int mask = 0;
275 unsigned long flags;

--- 28 unchanged lines hidden (view full) ---

304 loff_t *off)
305{
306 struct cxl_context *ctx = file->private_data;
307 struct cxl_event event;
308 unsigned long flags;
309 int rc;
310 DEFINE_WAIT(wait);
311
279 return cxl_context_iomap(ctx, vm);
280}
281
282unsigned int afu_poll(struct file *file, struct poll_table_struct *poll)
283{
284 struct cxl_context *ctx = file->private_data;
285 int mask = 0;
286 unsigned long flags;

--- 28 unchanged lines hidden (view full) ---

315 loff_t *off)
316{
317 struct cxl_context *ctx = file->private_data;
318 struct cxl_event event;
319 unsigned long flags;
320 int rc;
321 DEFINE_WAIT(wait);
322
323 if (!cxl_adapter_link_ok(ctx->afu->adapter))
324 return -EIO;
325
312 if (count < CXL_READ_MIN_SIZE)
313 return -EINVAL;
314
315 spin_lock_irqsave(&ctx->lock, flags);
316
317 for (;;) {
318 prepare_to_wait(&ctx->wq, &wait, TASK_INTERRUPTIBLE);
319 if (ctx_event_pending(ctx))
320 break;
321
326 if (count < CXL_READ_MIN_SIZE)
327 return -EINVAL;
328
329 spin_lock_irqsave(&ctx->lock, flags);
330
331 for (;;) {
332 prepare_to_wait(&ctx->wq, &wait, TASK_INTERRUPTIBLE);
333 if (ctx_event_pending(ctx))
334 break;
335
336 if (!cxl_adapter_link_ok(ctx->afu->adapter)) {
337 rc = -EIO;
338 goto out;
339 }
340
322 if (file->f_flags & O_NONBLOCK) {
323 rc = -EAGAIN;
324 goto out;
325 }
326
327 if (signal_pending(current)) {
328 rc = -ERESTARTSYS;
329 goto out;

--- 226 unchanged lines hidden --- 		341 if (file->f_flags & O_NONBLOCK) {
342 rc = -EAGAIN;
343 goto out;
344 }
345
346 if (signal_pending(current)) {
347 rc = -ERESTARTSYS;
348 goto out;

--- 226 unchanged lines hidden ---