SAFE public projects git trees. - safe/jmp/linux-2.6/blob - drivers/gpu/drm/i915/i915_gem_debugfs.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 <linux/seq_file.h>
  30 #include "drmP.h"
  31 #include "drm.h"
  32 #include "i915_drm.h"
  33 #include "i915_drv.h"
  34
  35 #define DRM_I915_RING_DEBUG 1
  36
  37
  38 #if defined(CONFIG_DEBUG_FS)
  39
  40 #define ACTIVE_LIST     1
  41 #define FLUSHING_LIST   2
  42 #define INACTIVE_LIST   3
  43
  44 static const char *get_pin_flag(struct drm_i915_gem_object *obj_priv)
  45 {
  46         if (obj_priv->user_pin_count > 0)
  47                 return "P";
  48         else if (obj_priv->pin_count > 0)
  49                 return "p";
  50         else
  51                 return " ";
  52 }
  53
  54 static const char *get_tiling_flag(struct drm_i915_gem_object *obj_priv)
  55 {
  56     switch (obj_priv->tiling_mode) {
  57     default:
  58     case I915_TILING_NONE: return " ";
  59     case I915_TILING_X: return "X";
  60     case I915_TILING_Y: return "Y";
  61     }
  62 }
  63
  64 static int i915_gem_object_list_info(struct seq_file *m, void *data)
  65 {
  66         struct drm_info_node *node = (struct drm_info_node *) m->private;
  67         uintptr_t list = (uintptr_t) node->info_ent->data;
  68         struct list_head *head;
  69         struct drm_device *dev = node->minor->dev;
  70         drm_i915_private_t *dev_priv = dev->dev_private;
  71         struct drm_i915_gem_object *obj_priv;
  72
  73         switch (list) {
  74         case ACTIVE_LIST:
  75                 seq_printf(m, "Active:\n");
  76                 head = &dev_priv->mm.active_list;
  77                 break;
  78         case INACTIVE_LIST:
  79                 seq_printf(m, "Inctive:\n");
  80                 head = &dev_priv->mm.inactive_list;
  81                 break;
  82         case FLUSHING_LIST:
  83                 seq_printf(m, "Flushing:\n");
  84                 head = &dev_priv->mm.flushing_list;
  85                 break;
  86         default:
  87                 DRM_INFO("Ooops, unexpected list\n");
  88                 return 0;
  89         }
  90
  91         list_for_each_entry(obj_priv, head, list)
  92         {
  93                 struct drm_gem_object *obj = obj_priv->obj;
  94
  95                 seq_printf(m, "    %p: %s %08x %08x %d",
  96                            obj,
  97                            get_pin_flag(obj_priv),
  98                            obj->read_domains, obj->write_domain,
  99                            obj_priv->last_rendering_seqno);
 100
 101                 if (obj->name)
 102                         seq_printf(m, " (name: %d)", obj->name);
 103                 if (obj_priv->fence_reg != I915_FENCE_REG_NONE)
 104                         seq_printf(m, " (fence: %d\n", obj_priv->fence_reg);
 105                 seq_printf(m, "\n");
 106         }
 107         return 0;
 108 }
 109
 110 static int i915_gem_request_info(struct seq_file *m, void *data)
 111 {
 112         struct drm_info_node *node = (struct drm_info_node *) m->private;
 113         struct drm_device *dev = node->minor->dev;
 114         drm_i915_private_t *dev_priv = dev->dev_private;
 115         struct drm_i915_gem_request *gem_request;
 116
 117         seq_printf(m, "Request:\n");
 118         list_for_each_entry(gem_request, &dev_priv->mm.request_list, list) {
 119                 seq_printf(m, "    %d @ %d\n",
 120                            gem_request->seqno,
 121                            (int) (jiffies - gem_request->emitted_jiffies));
 122         }
 123         return 0;
 124 }
 125
 126 static int i915_gem_seqno_info(struct seq_file *m, void *data)
 127 {
 128         struct drm_info_node *node = (struct drm_info_node *) m->private;
 129         struct drm_device *dev = node->minor->dev;
 130         drm_i915_private_t *dev_priv = dev->dev_private;
 131
 132         if (dev_priv->hw_status_page != NULL) {
 133                 seq_printf(m, "Current sequence: %d\n",
 134                            i915_get_gem_seqno(dev));
 135         } else {
 136                 seq_printf(m, "Current sequence: hws uninitialized\n");
 137         }
 138         seq_printf(m, "Waiter sequence:  %d\n",
 139                         dev_priv->mm.waiting_gem_seqno);
 140         seq_printf(m, "IRQ sequence:     %d\n", dev_priv->mm.irq_gem_seqno);
 141         return 0;
 142 }
 143
 144
 145 static int i915_interrupt_info(struct seq_file *m, void *data)
 146 {
 147         struct drm_info_node *node = (struct drm_info_node *) m->private;
 148         struct drm_device *dev = node->minor->dev;
 149         drm_i915_private_t *dev_priv = dev->dev_private;
 150
 151         seq_printf(m, "Interrupt enable:    %08x\n",
 152                    I915_READ(IER));
 153         seq_printf(m, "Interrupt identity:  %08x\n",
 154                    I915_READ(IIR));
 155         seq_printf(m, "Interrupt mask:      %08x\n",
 156                    I915_READ(IMR));
 157         seq_printf(m, "Pipe A stat:         %08x\n",
 158                    I915_READ(PIPEASTAT));
 159         seq_printf(m, "Pipe B stat:         %08x\n",
 160                    I915_READ(PIPEBSTAT));
 161         seq_printf(m, "Interrupts received: %d\n",
 162                    atomic_read(&dev_priv->irq_received));
 163         if (dev_priv->hw_status_page != NULL) {
 164                 seq_printf(m, "Current sequence:    %d\n",
 165                            i915_get_gem_seqno(dev));
 166         } else {
 167                 seq_printf(m, "Current sequence:    hws uninitialized\n");
 168         }
 169         seq_printf(m, "Waiter sequence:     %d\n",
 170                    dev_priv->mm.waiting_gem_seqno);
 171         seq_printf(m, "IRQ sequence:        %d\n",
 172                    dev_priv->mm.irq_gem_seqno);
 173         return 0;
 174 }
 175
 176 static int i915_gem_fence_regs_info(struct seq_file *m, void *data)
 177 {
 178         struct drm_info_node *node = (struct drm_info_node *) m->private;
 179         struct drm_device *dev = node->minor->dev;
 180         drm_i915_private_t *dev_priv = dev->dev_private;
 181         int i;
 182
 183         seq_printf(m, "Reserved fences = %d\n", dev_priv->fence_reg_start);
 184         seq_printf(m, "Total fences = %d\n", dev_priv->num_fence_regs);
 185         for (i = 0; i < dev_priv->num_fence_regs; i++) {
 186                 struct drm_gem_object *obj = dev_priv->fence_regs[i].obj;
 187
 188                 if (obj == NULL) {
 189                         seq_printf(m, "Fenced object[%2d] = unused\n", i);
 190                 } else {
 191                         struct drm_i915_gem_object *obj_priv;
 192
 193                         obj_priv = obj->driver_private;
 194                         seq_printf(m, "Fenced object[%2d] = %p: %s "
 195                                    "%08x %08x %08x %s %08x %08x %d",
 196                                    i, obj, get_pin_flag(obj_priv),
 197                                    obj_priv->gtt_offset,
 198                                    obj->size, obj_priv->stride,
 199                                    get_tiling_flag(obj_priv),
 200                                    obj->read_domains, obj->write_domain,
 201                                    obj_priv->last_rendering_seqno);
 202                         if (obj->name)
 203                                 seq_printf(m, " (name: %d)", obj->name);
 204                         seq_printf(m, "\n");
 205                 }
 206         }
 207
 208         return 0;
 209 }
 210
 211 static int i915_hws_info(struct seq_file *m, void *data)
 212 {
 213         struct drm_info_node *node = (struct drm_info_node *) m->private;
 214         struct drm_device *dev = node->minor->dev;
 215         drm_i915_private_t *dev_priv = dev->dev_private;
 216         int i;
 217         volatile u32 *hws;
 218
 219         hws = (volatile u32 *)dev_priv->hw_status_page;
 220         if (hws == NULL)
 221                 return 0;
 222
 223         for (i = 0; i < 4096 / sizeof(u32) / 4; i += 4) {
 224                 seq_printf(m, "0x%08x: 0x%08x 0x%08x 0x%08x 0x%08x\n",
 225                            i * 4,
 226                            hws[i], hws[i + 1], hws[i + 2], hws[i + 3]);
 227         }
 228         return 0;
 229 }
 230
 231 static struct drm_info_list i915_gem_debugfs_list[] = {
 232         {"i915_gem_active", i915_gem_object_list_info, 0, (void *) ACTIVE_LIST},
 233         {"i915_gem_flushing", i915_gem_object_list_info, 0, (void *) FLUSHING_LIST},
 234         {"i915_gem_inactive", i915_gem_object_list_info, 0, (void *) INACTIVE_LIST},
 235         {"i915_gem_request", i915_gem_request_info, 0},
 236         {"i915_gem_seqno", i915_gem_seqno_info, 0},
 237         {"i915_gem_fence_regs", i915_gem_fence_regs_info, 0},
 238         {"i915_gem_interrupt", i915_interrupt_info, 0},
 239         {"i915_gem_hws", i915_hws_info, 0},
 240 };
 241 #define I915_GEM_DEBUGFS_ENTRIES ARRAY_SIZE(i915_gem_debugfs_list)
 242
 243 int i915_gem_debugfs_init(struct drm_minor *minor)
 244 {
 245         return drm_debugfs_create_files(i915_gem_debugfs_list,
 246                                         I915_GEM_DEBUGFS_ENTRIES,
 247                                         minor->debugfs_root, minor);
 248 }
 249
 250 void i915_gem_debugfs_cleanup(struct drm_minor *minor)
 251 {
 252         drm_debugfs_remove_files(i915_gem_debugfs_list,
 253                                  I915_GEM_DEBUGFS_ENTRIES, minor);
 254 }
 255
 256 #endif /* CONFIG_DEBUG_FS */
 257