drivers/gpu/drm/i915/i915_gem_proc.c

   1 /*
   2  * Copyright © 2008 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  *
  23  * Authors:
  24  *    Eric Anholt <eric@anholt.net>
  25  *    Keith Packard <keithp@keithp.com>
  26  *
  27  */
  28
  29 #include "drmP.h"
  30 #include "drm.h"
  31 #include "i915_drm.h"
  32 #include "i915_drv.h"
  33
  34 static int i915_gem_active_info(char *buf, char **start, off_t offset,
  35                                 int request, int *eof, void *data)
  36 {
  37         struct drm_minor *minor = (struct drm_minor *) data;
  38         struct drm_device *dev = minor->dev;
  39         drm_i915_private_t *dev_priv = dev->dev_private;
  40         struct drm_i915_gem_object *obj_priv;
  41         int len = 0;
  42
  43         if (offset > DRM_PROC_LIMIT) {
  44                 *eof = 1;
  45                 return 0;
  46         }
  47
  48         *start = &buf[offset];
  49         *eof = 0;
  50         DRM_PROC_PRINT("Active:\n");
  51         list_for_each_entry(obj_priv, &dev_priv->mm.active_list,
  52                             list)
  53         {
  54                 struct drm_gem_object *obj = obj_priv->obj;
  55                 if (obj->name) {
  56                         DRM_PROC_PRINT("    %p(%d): %08x %08x %d\n",
  57                                        obj, obj->name,
  58                                        obj->read_domains, obj->write_domain,
  59                                        obj_priv->last_rendering_seqno);
  60                 } else {
  61                         DRM_PROC_PRINT("       %p: %08x %08x %d\n",
  62                                        obj,
  63                                        obj->read_domains, obj->write_domain,
  64                                        obj_priv->last_rendering_seqno);
  65                 }
  66         }
  67         if (len > request + offset)
  68                 return request;
  69         *eof = 1;
  70         return len - offset;
  71 }
  72
  73 static int i915_gem_flushing_info(char *buf, char **start, off_t offset,
  74                                   int request, int *eof, void *data)
  75 {
  76         struct drm_minor *minor = (struct drm_minor *) data;
  77         struct drm_device *dev = minor->dev;
  78         drm_i915_private_t *dev_priv = dev->dev_private;
  79         struct drm_i915_gem_object *obj_priv;
  80         int len = 0;
  81
  82         if (offset > DRM_PROC_LIMIT) {
  83                 *eof = 1;
  84                 return 0;
  85         }
  86
  87         *start = &buf[offset];
  88         *eof = 0;
  89         DRM_PROC_PRINT("Flushing:\n");
  90         list_for_each_entry(obj_priv, &dev_priv->mm.flushing_list,
  91                             list)
  92         {
  93                 struct drm_gem_object *obj = obj_priv->obj;
  94                 if (obj->name) {
  95                         DRM_PROC_PRINT("    %p(%d): %08x %08x %d\n",
  96                                        obj, obj->name,
  97                                        obj->read_domains, obj->write_domain,
  98                                        obj_priv->last_rendering_seqno);
  99                 } else {
 100                         DRM_PROC_PRINT("       %p: %08x %08x %d\n", obj,
 101                                        obj->read_domains, obj->write_domain,
 102                                        obj_priv->last_rendering_seqno);
 103                 }
 104         }
 105         if (len > request + offset)
 106                 return request;
 107         *eof = 1;
 108         return len - offset;
 109 }
 110
 111 static int i915_gem_inactive_info(char *buf, char **start, off_t offset,
 112                                   int request, int *eof, void *data)
 113 {
 114         struct drm_minor *minor = (struct drm_minor *) data;
 115         struct drm_device *dev = minor->dev;
 116         drm_i915_private_t *dev_priv = dev->dev_private;
 117         struct drm_i915_gem_object *obj_priv;
 118         int len = 0;
 119
 120         if (offset > DRM_PROC_LIMIT) {
 121                 *eof = 1;
 122                 return 0;
 123         }
 124
 125         *start = &buf[offset];
 126         *eof = 0;
 127         DRM_PROC_PRINT("Inactive:\n");
 128         list_for_each_entry(obj_priv, &dev_priv->mm.inactive_list,
 129                             list)
 130         {
 131                 struct drm_gem_object *obj = obj_priv->obj;
 132                 if (obj->name) {
 133                         DRM_PROC_PRINT("    %p(%d): %08x %08x %d\n",
 134                                        obj, obj->name,
 135                                        obj->read_domains, obj->write_domain,
 136                                        obj_priv->last_rendering_seqno);
 137                 } else {
 138                         DRM_PROC_PRINT("       %p: %08x %08x %d\n", obj,
 139                                        obj->read_domains, obj->write_domain,
 140                                        obj_priv->last_rendering_seqno);
 141                 }
 142         }
 143         if (len > request + offset)
 144                 return request;
 145         *eof = 1;
 146         return len - offset;
 147 }
 148
 149 static int i915_gem_request_info(char *buf, char **start, off_t offset,
 150                                  int request, int *eof, void *data)
 151 {
 152         struct drm_minor *minor = (struct drm_minor *) data;
 153         struct drm_device *dev = minor->dev;
 154         drm_i915_private_t *dev_priv = dev->dev_private;
 155         struct drm_i915_gem_request *gem_request;
 156         int len = 0;
 157
 158         if (offset > DRM_PROC_LIMIT) {
 159                 *eof = 1;
 160                 return 0;
 161         }
 162
 163         *start = &buf[offset];
 164         *eof = 0;
 165         DRM_PROC_PRINT("Request:\n");
 166         list_for_each_entry(gem_request, &dev_priv->mm.request_list,
 167                             list)
 168         {
 169                 DRM_PROC_PRINT("    %d @ %d\n",
 170                                gem_request->seqno,
 171                                (int) (jiffies - gem_request->emitted_jiffies));
 172         }
 173         if (len > request + offset)
 174                 return request;
 175         *eof = 1;
 176         return len - offset;
 177 }
 178
 179 static int i915_gem_seqno_info(char *buf, char **start, off_t offset,
 180                                int request, int *eof, void *data)
 181 {
 182         struct drm_minor *minor = (struct drm_minor *) data;
 183         struct drm_device *dev = minor->dev;
 184         drm_i915_private_t *dev_priv = dev->dev_private;
 185         int len = 0;
 186
 187         if (offset > DRM_PROC_LIMIT) {
 188                 *eof = 1;
 189                 return 0;
 190         }
 191
 192         *start = &buf[offset];
 193         *eof = 0;
 194         if (dev_priv->hw_status_page != NULL) {
 195                 DRM_PROC_PRINT("Current sequence: %d\n",
 196                                i915_get_gem_seqno(dev));
 197         } else {
 198                 DRM_PROC_PRINT("Current sequence: hws uninitialized\n");
 199         }
 200         DRM_PROC_PRINT("Waiter sequence:  %d\n",
 201                        dev_priv->mm.waiting_gem_seqno);
 202         DRM_PROC_PRINT("IRQ sequence:     %d\n", dev_priv->mm.irq_gem_seqno);
 203         if (len > request + offset)
 204                 return request;
 205         *eof = 1;
 206         return len - offset;
 207 }
 208
 209
 210 static int i915_interrupt_info(char *buf, char **start, off_t offset,
 211                                int request, int *eof, void *data)
 212 {
 213         struct drm_minor *minor = (struct drm_minor *) data;
 214         struct drm_device *dev = minor->dev;
 215         drm_i915_private_t *dev_priv = dev->dev_private;
 216         int len = 0;
 217
 218         if (offset > DRM_PROC_LIMIT) {
 219                 *eof = 1;
 220                 return 0;
 221         }
 222
 223         *start = &buf[offset];
 224         *eof = 0;
 225         DRM_PROC_PRINT("Interrupt enable:    %08x\n",
 226                        I915_READ(IER));
 227         DRM_PROC_PRINT("Interrupt identity:  %08x\n",
 228                        I915_READ(IIR));
 229         DRM_PROC_PRINT("Interrupt mask:      %08x\n",
 230                        I915_READ(IMR));
 231         DRM_PROC_PRINT("Pipe A stat:         %08x\n",
 232                        I915_READ(PIPEASTAT));
 233         DRM_PROC_PRINT("Pipe B stat:         %08x\n",
 234                        I915_READ(PIPEBSTAT));
 235         DRM_PROC_PRINT("Interrupts received: %d\n",
 236                        atomic_read(&dev_priv->irq_received));
 237         if (dev_priv->hw_status_page != NULL) {
 238                 DRM_PROC_PRINT("Current sequence:    %d\n",
 239                                i915_get_gem_seqno(dev));
 240         } else {
 241                 DRM_PROC_PRINT("Current sequence:    hws uninitialized\n");
 242         }
 243         DRM_PROC_PRINT("Waiter sequence:     %d\n",
 244                        dev_priv->mm.waiting_gem_seqno);
 245         DRM_PROC_PRINT("IRQ sequence:        %d\n",
 246                        dev_priv->mm.irq_gem_seqno);
 247         if (len > request + offset)
 248                 return request;
 249         *eof = 1;
 250         return len - offset;
 251 }
 252
 253 static int i915_hws_info(char *buf, char **start, off_t offset,
 254                          int request, int *eof, void *data)
 255 {
 256         struct drm_minor *minor = (struct drm_minor *) data;
 257         struct drm_device *dev = minor->dev;
 258         drm_i915_private_t *dev_priv = dev->dev_private;
 259         int len = 0, i;
 260         volatile u32 *hws;
 261
 262         if (offset > DRM_PROC_LIMIT) {
 263                 *eof = 1;
 264                 return 0;
 265         }
 266
 267         hws = (volatile u32 *)dev_priv->hw_status_page;
 268         if (hws == NULL) {
 269                 *eof = 1;
 270                 return 0;
 271         }
 272
 273         *start = &buf[offset];
 274         *eof = 0;
 275         for (i = 0; i < 4096 / sizeof(u32) / 4; i += 4) {
 276                 DRM_PROC_PRINT("0x%08x: 0x%08x 0x%08x 0x%08x 0x%08x\n",
 277                                i * 4,
 278                                hws[i], hws[i + 1], hws[i + 2], hws[i + 3]);
 279         }
 280         if (len > request + offset)
 281                 return request;
 282         *eof = 1;
 283         return len - offset;
 284 }
 285
 286 static struct drm_proc_list {
 287         /** file name */
 288         const char *name;
 289         /** proc callback*/
 290         int (*f) (char *, char **, off_t, int, int *, void *);
 291 } i915_gem_proc_list[] = {
 292         {"i915_gem_active", i915_gem_active_info},
 293         {"i915_gem_flushing", i915_gem_flushing_info},
 294         {"i915_gem_inactive", i915_gem_inactive_info},
 295         {"i915_gem_request", i915_gem_request_info},
 296         {"i915_gem_seqno", i915_gem_seqno_info},
 297         {"i915_gem_interrupt", i915_interrupt_info},
 298         {"i915_gem_hws", i915_hws_info},
 299 };
 300
 301 #define I915_GEM_PROC_ENTRIES ARRAY_SIZE(i915_gem_proc_list)
 302
 303 int i915_gem_proc_init(struct drm_minor *minor)
 304 {
 305         struct proc_dir_entry *ent;
 306         int i, j;
 307
 308         for (i = 0; i < I915_GEM_PROC_ENTRIES; i++) {
 309                 ent = create_proc_entry(i915_gem_proc_list[i].name,
 310                                         S_IFREG | S_IRUGO, minor->dev_root);
 311                 if (!ent) {
 312                         DRM_ERROR("Cannot create /proc/dri/.../%s\n",
 313                                   i915_gem_proc_list[i].name);
 314                         for (j = 0; j < i; j++)
 315                                 remove_proc_entry(i915_gem_proc_list[i].name,
 316                                                   minor->dev_root);
 317                         return -1;
 318                 }
 319                 ent->read_proc = i915_gem_proc_list[i].f;
 320                 ent->data = minor;
 321         }
 322         return 0;
 323 }
 324
 325 void i915_gem_proc_cleanup(struct drm_minor *minor)
 326 {
 327         int i;
 328
 329         if (!minor->dev_root)
 330                 return;
 331
 332         for (i = 0; i < I915_GEM_PROC_ENTRIES; i++)
 333                 remove_proc_entry(i915_gem_proc_list[i].name, minor->dev_root);
 334 }