printk.c

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/*
 * Copyright 2012 Red Hat Inc.
 *
 * 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 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 HOLDER(S) OR AUTHOR(S) 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.
 *
 * Authors: Ben Skeggs
 */

#include <core/object.h>
#include <core/client.h>
#include <core/subdev.h>
#include <core/printk.h>

void
nv_printk_(struct nouveau_object *object, const char *pfx, int level,
       const char *fmt, ...)
{
    static const char name[] = { '!', 'E', 'W', ' ', 'D', 'T', 'P', 'S' };
    char mfmt[256];
    va_list args;

    if (object && !nv_iclass(object, NV_CLIENT_CLASS)) {
        struct nouveau_object *device = object;
        struct nouveau_object *subdev = object;
        char obuf[64], *ofmt = "";

        if (object->engine) {
            snprintf(obuf, sizeof(obuf), "[0x%08x][%p]",
                 nv_hclass(object), object);
            ofmt = obuf;
            subdev = object->engine;
            device = object->engine;
        }

        if (subdev->parent)
            device = subdev->parent;

        if (level > nv_subdev(subdev)->debug)
            return;

        snprintf(mfmt, sizeof(mfmt), "%snouveau %c[%8s][%s]%s %s", pfx,
             name[level], nv_subdev(subdev)->name,
             nv_device(device)->name, ofmt, fmt);
    } else
    if (object && nv_iclass(object, NV_CLIENT_CLASS)) {
        if (level > nv_client(object)->debug)
            return;

        snprintf(mfmt, sizeof(mfmt), "%snouveau %c[%8s] %s", pfx,
             name[level], nv_client(object)->name, fmt);
    } else {
        snprintf(mfmt, sizeof(mfmt), "%snouveau: %s", pfx, fmt);
    }

    va_start(args, fmt);
    vprintk(mfmt, args);
    va_end(args);
}