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authorAlex Deucher <alexander.deucher@amd.com>2013-09-09 18:56:50 -0400
committerAlex Deucher <alexander.deucher@amd.com>2013-09-11 11:44:37 -0400
commitef4e03658420bbf91365647615460668c2510e79 (patch)
treee5a566fc95349dfdcbc81e042801dd6648b2c326 /kernel/debug/debug_core.c
parentdrm/radeon: expose DPM thermal thresholds through sysfs (diff)
drm/radeon/dpm: handle bapm on trinity
bapm is a power management feature for handling the power budget between the CPU and GPU on APUs. This patch adds support for enabling or disabling it. For now disable it by default. Enabling it properly requires quite a bit more work and will be addressed in a separate patch. This patch fixes hangs on boot on certain trinity laptops when the system is on battery power. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
Diffstat (limited to 'kernel/debug/debug_core.c')
0 files changed, 0 insertions, 0 deletions
Copyright © 1996 – 2026 Jason A. Donenfeld. All Rights Reverse Engineered.
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/*
 * Common debugging macros for use with the hisax driver
 *
 * Author       Frode Isaksen
 * Copyright    2001 by Frode Isaksen      <fisaksen@bewan.com>
 *              2001 by Kai Germaschewski  <kai.germaschewski@gmx.de>
 * 
 * This software may be used and distributed according to the terms
 * of the GNU General Public License, incorporated herein by reference.
 *
 * How to use:
 * 
 * Before including this file, you need to
 *   #define __debug_variable my_debug
 * where my_debug is a variable in your code which
 * determines the debug bitmask.
 *
 * If CONFIG_HISAX_DEBUG is not set, all macros evaluate to nothing
 *
 */

#ifndef __HISAX_DEBUG_H__
#define __HISAX_DEBUG_H__


#ifdef CONFIG_HISAX_DEBUG

#define DBG(level, format, arg...) do { \
if (level & __debug_variable) \
printk(KERN_DEBUG "%s: " format "\n" , __func__ , ## arg); \
} while (0)

#define DBG_PACKET(level,data,count) \
  if (level & __debug_variable) dump_packet(__func__,data,count)

#define DBG_SKB(level,skb) \
  if ((level & __debug_variable) && skb) dump_packet(__func__,skb->data,skb->len)


static void __attribute__((unused))
dump_packet(const char *name,const u_char *data,int pkt_len)
{
#define DUMP_HDR_SIZE 20
#define DUMP_TLR_SIZE 8
	if (pkt_len) {
		int i,len1,len2;

		printk(KERN_DEBUG "%s: length=%d,data=",name,pkt_len);

		if (pkt_len >  DUMP_HDR_SIZE+ DUMP_TLR_SIZE) {
			len1 = DUMP_HDR_SIZE;
			len2 = DUMP_TLR_SIZE;
		} else {
			len1 = pkt_len > DUMP_HDR_SIZE ? DUMP_HDR_SIZE : pkt_len;
			len2 = 0;			
		}
		for (i = 0; i < len1; ++i) {
		 	printk ("%.2x", data[i]);
		}
		if (len2) {
		 	printk ("..");
			for (i = pkt_len-DUMP_TLR_SIZE; i < pkt_len; ++i) {
				printk ("%.2x", data[i]);
			}
		}
		printk ("\n");
	}
#undef DUMP_HDR_SIZE
#undef DUMP_TLR_SIZE
}

#else

#define DBG(level, format, arg...) do {} while (0)
#define DBG_PACKET(level,data,count) do {} while (0)
#define DBG_SKB(level,skb) do {} while (0)

#endif

#endif