drivers/gpu/drm/nouveau/core/core/printk.c

   1 /*
   2  * Copyright 2012 Red Hat Inc.
   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 shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  * Authors: Ben Skeggs
  23  */
  24
  25 #include <core/object.h>
  26 #include <core/client.h>
  27 #include <core/subdev.h>
  28 #include <core/printk.h>
  29
  30 int nv_printk_suspend_level = NV_DBG_DEBUG;
  31
  32 void
  33 nv_printk_(struct nouveau_object *object, const char *pfx, int level,
  34            const char *fmt, ...)
  35 {
  36         static const char name[] = { '!', 'E', 'W', ' ', 'D', 'T', 'P', 'S' };
  37         char mfmt[256];
  38         va_list args;
  39
  40         if (object && !nv_iclass(object, NV_CLIENT_CLASS)) {
  41                 struct nouveau_object *device = object;
  42                 struct nouveau_object *subdev = object;
  43                 char obuf[64], *ofmt = "";
  44
  45                 if (object->engine) {
  46                         snprintf(obuf, sizeof(obuf), "[0x%08x][%p]",
  47                                  nv_hclass(object), object);
  48                         ofmt = obuf;
  49                         subdev = object->engine;
  50                         device = object->engine;
  51                 }
  52
  53                 if (subdev->parent)
  54                         device = subdev->parent;
  55
  56                 if (level > nv_subdev(subdev)->debug)
  57                         return;
  58
  59                 snprintf(mfmt, sizeof(mfmt), "%snouveau %c[%8s][%s]%s %s", pfx,
  60                          name[level], nv_subdev(subdev)->name,
  61                          nv_device(device)->name, ofmt, fmt);
  62         } else
  63         if (object && nv_iclass(object, NV_CLIENT_CLASS)) {
  64                 if (level > nv_client(object)->debug)
  65                         return;
  66
  67                 snprintf(mfmt, sizeof(mfmt), "%snouveau %c[%8s] %s", pfx,
  68                          name[level], nv_client(object)->name, fmt);
  69         } else {
  70                 snprintf(mfmt, sizeof(mfmt), "%snouveau: %s", pfx, fmt);
  71         }
  72
  73         va_start(args, fmt);
  74         vprintk(mfmt, args);
  75         va_end(args);
  76 }
  77
  78 #define CONV_LEVEL(x) case NV_DBG_##x: return NV_PRINTK_##x
  79
  80 const char *nv_printk_level_to_pfx(int level)
  81 {
  82         switch (level) {
  83         CONV_LEVEL(FATAL);
  84         CONV_LEVEL(ERROR);
  85         CONV_LEVEL(WARN);
  86         CONV_LEVEL(INFO);
  87         CONV_LEVEL(DEBUG);
  88         CONV_LEVEL(PARANOIA);
  89         CONV_LEVEL(TRACE);
  90         CONV_LEVEL(SPAM);
  91         }
  92         return NV_PRINTK_DEBUG;
  93 }