linux_dsm_epyc7002/drivers/gpu/drm/drm_print.c
Chris Wilson 79a5ad2fdb
drm: Enable pr_debug() for drm_printer
pr_debug() is conditionally compiled and requires either
dynamic-debugging to be enabled or for the code to opt-in using #define
DEBUG. Since drm_print provides a central debugging facility using
pr_debug(), make sure it will always produce output.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20171027110602.31519-1-chris@chris-wilson.co.uk
2017-10-30 16:59:21 -04:00

115 lines
3.1 KiB
C

/*
* Copyright (C) 2016 Red Hat
*
* 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:
* Rob Clark <robdclark@gmail.com>
*/
#define DEBUG /* for pr_debug() */
#include <stdarg.h>
#include <linux/seq_file.h>
#include <drm/drmP.h>
#include <drm/drm_print.h>
void __drm_printfn_seq_file(struct drm_printer *p, struct va_format *vaf)
{
seq_printf(p->arg, "%pV", vaf);
}
EXPORT_SYMBOL(__drm_printfn_seq_file);
void __drm_printfn_info(struct drm_printer *p, struct va_format *vaf)
{
dev_info(p->arg, "[" DRM_NAME "] %pV", vaf);
}
EXPORT_SYMBOL(__drm_printfn_info);
void __drm_printfn_debug(struct drm_printer *p, struct va_format *vaf)
{
pr_debug("%s %pV", p->prefix, vaf);
}
EXPORT_SYMBOL(__drm_printfn_debug);
/**
* drm_printf - print to a &drm_printer stream
* @p: the &drm_printer
* @f: format string
*/
void drm_printf(struct drm_printer *p, const char *f, ...)
{
struct va_format vaf;
va_list args;
va_start(args, f);
vaf.fmt = f;
vaf.va = &args;
p->printfn(p, &vaf);
va_end(args);
}
EXPORT_SYMBOL(drm_printf);
#define DRM_PRINTK_FMT "[" DRM_NAME ":%s]%s %pV"
void drm_dev_printk(const struct device *dev, const char *level,
unsigned int category, const char *function_name,
const char *prefix, const char *format, ...)
{
struct va_format vaf;
va_list args;
if (category != DRM_UT_NONE && !(drm_debug & category))
return;
va_start(args, format);
vaf.fmt = format;
vaf.va = &args;
if (dev)
dev_printk(level, dev, DRM_PRINTK_FMT, function_name, prefix,
&vaf);
else
printk("%s" DRM_PRINTK_FMT, level, function_name, prefix, &vaf);
va_end(args);
}
EXPORT_SYMBOL(drm_dev_printk);
void drm_printk(const char *level, unsigned int category,
const char *format, ...)
{
struct va_format vaf;
va_list args;
if (category != DRM_UT_NONE && !(drm_debug & category))
return;
va_start(args, format);
vaf.fmt = format;
vaf.va = &args;
printk("%s" "[" DRM_NAME ":%ps]%s %pV",
level, __builtin_return_address(0),
strcmp(level, KERN_ERR) == 0 ? " *ERROR*" : "", &vaf);
va_end(args);
}
EXPORT_SYMBOL(drm_printk);