linux/drivers/gpu/drm/nouveau/nouveau_util.c

79 lines
2.0 KiB
C

/*
* Copyright (C) 2010 Nouveau Project
*
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
#include <linux/ratelimit.h>
#include "nouveau_util.h"
static DEFINE_RATELIMIT_STATE(nouveau_ratelimit_state, 3 * HZ, 20);
void
nouveau_bitfield_print(const struct nouveau_bitfield *bf, u32 value)
{
while (bf->name) {
if (value & bf->mask) {
printk(" %s", bf->name);
value &= ~bf->mask;
}
bf++;
}
if (value)
printk(" (unknown bits 0x%08x)", value);
}
const struct nouveau_enum *
nouveau_enum_find(const struct nouveau_enum *en, u32 value)
{
while (en->name) {
if (en->value == value)
return en;
en++;
}
return NULL;
}
void
nouveau_enum_print(const struct nouveau_enum *en, u32 value)
{
en = nouveau_enum_find(en, value);
if (en) {
printk("%s", en->name);
return;
}
printk("(unknown enum 0x%08x)", value);
}
int
nouveau_ratelimit(void)
{
return __ratelimit(&nouveau_ratelimit_state);
}