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 %08x\n",
 170                                gem_request->seqno,
 171                                (int) (jiffies - gem_request->emitted_jiffies),
 172                                gem_request->flush_domains);
 173         }
 174         if (len > request + offset)
 175                 return request;
 176         *eof = 1;
 177         return len - offset;
 178 }
 179
 180 static int i915_gem_seqno_info(char *buf, char **start, off_t offset,
 181                                int request, int *eof, void *data)
 182 {
 183         struct drm_minor *minor = (struct drm_minor *) data;
 184         struct drm_device *dev = minor->dev;
 185         drm_i915_private_t *dev_priv = dev->dev_private;
 186         int len = 0;
 187
 188         if (offset > DRM_PROC_LIMIT) {
 189                 *eof = 1;
 190                 return 0;
 191         }
 192
 193         *start = &buf[offset];
 194         *eof = 0;
 195         if (dev_priv->hw_status_page != NULL) {
 196                 DRM_PROC_PRINT("Current sequence: %d\n",
 197                                i915_get_gem_seqno(dev));
 198         } else {
 199                 DRM_PROC_PRINT("Current sequence: hws uninitialized\n");
 200         }
 201         DRM_PROC_PRINT("Waiter sequence:  %d\n",
 202                        dev_priv->mm.waiting_gem_seqno);
 203         DRM_PROC_PRINT("IRQ sequence:     %d\n", dev_priv->mm.irq_gem_seqno);
 204         if (len > request + offset)
 205                 return request;
 206         *eof = 1;
 207         return len - offset;
 208 }
 209
 210
 211 static int i915_interrupt_info(char *buf, char **start, off_t offset,
 212                                int request, int *eof, void *data)
 213 {
 214         struct drm_minor *minor = (struct drm_minor *) data;
 215         struct drm_device *dev = minor->dev;
 216         drm_i915_private_t *dev_priv = dev->dev_private;
 217         int len = 0;
 218
 219         if (offset > DRM_PROC_LIMIT) {
 220                 *eof = 1;
 221                 return 0;
 222         }
 223
 224         *start = &buf[offset];
 225         *eof = 0;
 226         DRM_PROC_PRINT("Interrupt enable:    %08x\n",
 227                        I915_READ(IER));
 228         DRM_PROC_PRINT("Interrupt identity:  %08x\n",
 229                        I915_READ(IIR));
 230         DRM_PROC_PRINT("Interrupt mask:      %08x\n",
 231                        I915_READ(IMR));
 232         DRM_PROC_PRINT("Pipe A stat:         %08x\n",
 233                        I915_READ(PIPEASTAT));
 234         DRM_PROC_PRINT("Pipe B stat:         %08x\n",
 235                        I915_READ(PIPEBSTAT));
 236         DRM_PROC_PRINT("Interrupts received: %d\n",
 237                        atomic_read(&dev_priv->irq_received));
 238         if (dev_priv->hw_status_page != NULL) {
 239                 DRM_PROC_PRINT("Current sequence:    %d\n",
 240                                i915_get_gem_seqno(dev));
 241         } else {
 242                 DRM_PROC_PRINT("Current sequence:    hws uninitialized\n");
 243         }
 244         DRM_PROC_PRINT("Waiter sequence:     %d\n",
 245                        dev_priv->mm.waiting_gem_seqno);
 246         DRM_PROC_PRINT("IRQ sequence:        %d\n",
 247                        dev_priv->mm.irq_gem_seqno);
 248         if (len > request + offset)
 249                 return request;
 250         *eof = 1;
 251         return len - offset;
 252 }
 253
 254 static struct drm_proc_list {
 255         /** file name */
 256         const char *name;
 257         /** proc callback*/
 258         int (*f) (char *, char **, off_t, int, int *, void *);
 259 } i915_gem_proc_list[] = {
 260         {"i915_gem_active", i915_gem_active_info},
 261         {"i915_gem_flushing", i915_gem_flushing_info},
 262         {"i915_gem_inactive", i915_gem_inactive_info},
 263         {"i915_gem_request", i915_gem_request_info},
 264         {"i915_gem_seqno", i915_gem_seqno_info},
 265         {"i915_gem_interrupt", i915_interrupt_info},
 266 };
 267
 268 #define I915_GEM_PROC_ENTRIES ARRAY_SIZE(i915_gem_proc_list)
 269
 270 int i915_gem_proc_init(struct drm_minor *minor)
 271 {
 272         struct proc_dir_entry *ent;
 273         int i, j;
 274
 275         for (i = 0; i < I915_GEM_PROC_ENTRIES; i++) {
 276                 ent = create_proc_entry(i915_gem_proc_list[i].name,
 277                                         S_IFREG | S_IRUGO, minor->dev_root);
 278                 if (!ent) {
 279                         DRM_ERROR("Cannot create /proc/dri/.../%s\n",
 280                                   i915_gem_proc_list[i].name);
 281                         for (j = 0; j < i; j++)
 282                                 remove_proc_entry(i915_gem_proc_list[i].name,
 283                                                   minor->dev_root);
 284                         return -1;
 285                 }
 286                 ent->read_proc = i915_gem_proc_list[i].f;
 287                 ent->data = minor;
 288         }
 289         return 0;
 290 }
 291
 292 void i915_gem_proc_cleanup(struct drm_minor *minor)
 293 {
 294         int i;
 295
 296         if (!minor->dev_root)
 297                 return;
 298
 299         for (i = 0; i < I915_GEM_PROC_ENTRIES; i++)
 300                 remove_proc_entry(i915_gem_proc_list[i].name, minor->dev_root);
 301 }