linux-core/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 "drm_compat.h"
  32 #include "i915_drm.h"
  33 #include "i915_drv.h"
  34
  35 static int i915_gem_active_info(char *buf, char **start, off_t offset,
  36                                 int request, int *eof, void *data)
  37 {
  38         struct drm_minor *minor = (struct drm_minor *) data;
  39         struct drm_device *dev = minor->dev;
  40         struct drm_i915_private *dev_priv = dev->dev_private;
  41         struct drm_i915_gem_object *obj_priv;
  42         int len = 0;
  43
  44         if (offset > DRM_PROC_LIMIT) {
  45                 *eof = 1;
  46                 return 0;
  47         }
  48
  49         *start = &buf[offset];
  50         *eof = 0;
  51         DRM_PROC_PRINT("Active:\n");
  52         list_for_each_entry(obj_priv, &dev_priv->mm.active_list,
  53                             list)
  54         {
  55                 struct drm_gem_object *obj = obj_priv->obj;
  56                 if (obj->name) {
  57                         DRM_PROC_PRINT("    %p(%d): %08x %08x %d\n",
  58                                        obj, obj->name,
  59                                        obj->read_domains, obj->write_domain,
  60                                        obj_priv->last_rendering_seqno);
  61                 } else {
  62                         DRM_PROC_PRINT("       %p: %08x %08x %d\n",
  63                                        obj,
  64                                        obj->read_domains, obj->write_domain,
  65                                        obj_priv->last_rendering_seqno);
  66                 }
  67         }
  68         if (len > request + offset)
  69                 return request;
  70         *eof = 1;
  71         return len - offset;
  72 }
  73
  74 static int i915_gem_flushing_info(char *buf, char **start, off_t offset,
  75                                   int request, int *eof, void *data)
  76 {
  77         struct drm_minor *minor = (struct drm_minor *) data;
  78         struct drm_device *dev = minor->dev;
  79         struct drm_i915_private *dev_priv = dev->dev_private;
  80         struct drm_i915_gem_object *obj_priv;
  81         int len = 0;
  82
  83         if (offset > DRM_PROC_LIMIT) {
  84                 *eof = 1;
  85                 return 0;
  86         }
  87
  88         *start = &buf[offset];
  89         *eof = 0;
  90         DRM_PROC_PRINT("Flushing:\n");
  91         list_for_each_entry(obj_priv, &dev_priv->mm.flushing_list,
  92                             list)
  93         {
  94                 struct drm_gem_object *obj = obj_priv->obj;
  95                 if (obj->name) {
  96                         DRM_PROC_PRINT("    %p(%d): %08x %08x %d\n",
  97                                        obj, obj->name,
  98                                        obj->read_domains, obj->write_domain,
  99                                        obj_priv->last_rendering_seqno);
 100                 } else {
 101                         DRM_PROC_PRINT("       %p: %08x %08x %d\n", obj,
 102                                        obj->read_domains, obj->write_domain,
 103                                        obj_priv->last_rendering_seqno);
 104                 }
 105         }
 106         if (len > request + offset)
 107                 return request;
 108         *eof = 1;
 109         return len - offset;
 110 }
 111
 112 static int i915_gem_inactive_info(char *buf, char **start, off_t offset,
 113                                   int request, int *eof, void *data)
 114 {
 115         struct drm_minor *minor = (struct drm_minor *) data;
 116         struct drm_device *dev = minor->dev;
 117         struct drm_i915_private *dev_priv = dev->dev_private;
 118         struct drm_i915_gem_object *obj_priv;
 119         int len = 0;
 120
 121         if (offset > DRM_PROC_LIMIT) {
 122                 *eof = 1;
 123                 return 0;
 124         }
 125
 126         *start = &buf[offset];
 127         *eof = 0;
 128         DRM_PROC_PRINT("Inactive:\n");
 129         list_for_each_entry(obj_priv, &dev_priv->mm.inactive_list,
 130                             list)
 131         {
 132                 struct drm_gem_object *obj = obj_priv->obj;
 133                 if (obj->name) {
 134                         DRM_PROC_PRINT("    %p(%d): %08x %08x %d\n",
 135                                        obj, obj->name,
 136                                        obj->read_domains, obj->write_domain,
 137                                        obj_priv->last_rendering_seqno);
 138                 } else {
 139                         DRM_PROC_PRINT("       %p: %08x %08x %d\n", obj,
 140                                        obj->read_domains, obj->write_domain,
 141                                        obj_priv->last_rendering_seqno);
 142                 }
 143         }
 144         if (len > request + offset)
 145                 return request;
 146         *eof = 1;
 147         return len - offset;
 148 }
 149
 150 static int i915_gem_request_info(char *buf, char **start, off_t offset,
 151                                  int request, int *eof, void *data)
 152 {
 153         struct drm_minor *minor = (struct drm_minor *) data;
 154         struct drm_device *dev = minor->dev;
 155         struct drm_i915_private *dev_priv = dev->dev_private;
 156         struct drm_i915_gem_request *gem_request;
 157         int len = 0;
 158
 159         if (offset > DRM_PROC_LIMIT) {
 160                 *eof = 1;
 161                 return 0;
 162         }
 163
 164         *start = &buf[offset];
 165         *eof = 0;
 166         DRM_PROC_PRINT("Request:\n");
 167         list_for_each_entry(gem_request, &dev_priv->mm.request_list,
 168                             list)
 169         {
 170                 DRM_PROC_PRINT("    %d @ %d %08x\n",
 171                                gem_request->seqno,
 172                                (int) (jiffies - gem_request->emitted_jiffies),
 173                                gem_request->flush_domains);
 174         }
 175         if (len > request + offset)
 176                 return request;
 177         *eof = 1;
 178         return len - offset;
 179 }
 180
 181 static int i915_gem_seqno_info(char *buf, char **start, off_t offset,
 182                                int request, int *eof, void *data)
 183 {
 184         struct drm_minor *minor = (struct drm_minor *) data;
 185         struct drm_device *dev = minor->dev;
 186         struct drm_i915_private *dev_priv = dev->dev_private;
 187         int len = 0;
 188
 189         if (offset > DRM_PROC_LIMIT) {
 190                 *eof = 1;
 191                 return 0;
 192         }
 193
 194         *start = &buf[offset];
 195         *eof = 0;
 196         DRM_PROC_PRINT("Current sequence: %d\n", i915_get_gem_seqno(dev));
 197         DRM_PROC_PRINT("Waiter sequence:  %d\n",
 198                        dev_priv->mm.waiting_gem_seqno);
 199         DRM_PROC_PRINT("IRQ sequence:     %d\n", dev_priv->mm.irq_gem_seqno);
 200         if (len > request + offset)
 201                 return request;
 202         *eof = 1;
 203         return len - offset;
 204 }
 205
 206
 207 static int i915_interrupt_info(char *buf, char **start, off_t offset,
 208                                int request, int *eof, void *data)
 209 {
 210         struct drm_minor *minor = (struct drm_minor *) data;
 211         struct drm_device *dev = minor->dev;
 212         struct drm_i915_private *dev_priv = dev->dev_private;
 213         int len = 0;
 214
 215         if (offset > DRM_PROC_LIMIT) {
 216                 *eof = 1;
 217                 return 0;
 218         }
 219
 220         *start = &buf[offset];
 221         *eof = 0;
 222         DRM_PROC_PRINT("Interrupt enable:    %08x\n",
 223                        I915_READ(IER));
 224         DRM_PROC_PRINT("Interrupt identity:  %08x\n",
 225                        I915_READ(IIR));
 226         DRM_PROC_PRINT("Interrupt mask:      %08x\n",
 227                        I915_READ(IMR));
 228         DRM_PROC_PRINT("Pipe A stat:         %08x\n",
 229                        I915_READ(PIPEASTAT));
 230         DRM_PROC_PRINT("Pipe B stat:         %08x\n",
 231                        I915_READ(PIPEBSTAT));
 232         DRM_PROC_PRINT("Interrupts received: %d\n",
 233                        atomic_read(&dev_priv->irq_received));
 234         DRM_PROC_PRINT("Current sequence:    %d\n",
 235                        i915_get_gem_seqno(dev));
 236         DRM_PROC_PRINT("Waiter sequence:     %d\n",
 237                        dev_priv->mm.waiting_gem_seqno);
 238         DRM_PROC_PRINT("IRQ sequence:        %d\n",
 239                        dev_priv->mm.irq_gem_seqno);
 240         if (len > request + offset)
 241                 return request;
 242         *eof = 1;
 243         return len - offset;
 244 }
 245
 246 static struct drm_proc_list {
 247         /** file name */
 248         const char *name;
 249         /** proc callback*/
 250         int (*f) (char *, char **, off_t, int, int *, void *);
 251 } i915_gem_proc_list[] = {
 252         {"i915_gem_active", i915_gem_active_info},
 253         {"i915_gem_flushing", i915_gem_flushing_info},
 254         {"i915_gem_inactive", i915_gem_inactive_info},
 255         {"i915_gem_request", i915_gem_request_info},
 256         {"i915_gem_seqno", i915_gem_seqno_info},
 257         {"i915_gem_interrupt", i915_interrupt_info},
 258 };
 259
 260 #define I915_GEM_PROC_ENTRIES ARRAY_SIZE(i915_gem_proc_list)
 261
 262 int i915_gem_proc_init(struct drm_minor *minor)
 263 {
 264         struct proc_dir_entry *ent;
 265         int i, j;
 266
 267         for (i = 0; i < I915_GEM_PROC_ENTRIES; i++) {
 268                 ent = create_proc_entry(i915_gem_proc_list[i].name,
 269                                         S_IFREG | S_IRUGO, minor->dev_root);
 270                 if (!ent) {
 271                         DRM_ERROR("Cannot create /proc/dri/.../%s\n",
 272                                   i915_gem_proc_list[i].name);
 273                         for (j = 0; j < i; j++)
 274                                 remove_proc_entry(i915_gem_proc_list[i].name,
 275                                                   minor->dev_root);
 276                         return -1;
 277                 }
 278                 ent->read_proc = i915_gem_proc_list[i].f;
 279                 ent->data = minor;
 280         }
 281         return 0;
 282 }
 283
 284 void i915_gem_proc_cleanup(struct drm_minor *minor)
 285 {
 286         int i;
 287
 288         if (!minor->dev_root)
 289                 return;
 290
 291         for (i = 0; i < I915_GEM_PROC_ENTRIES; i++)
 292                 remove_proc_entry(i915_gem_proc_list[i].name, minor->dev_root);
 293 }