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Merge branch 'WIP.x86-pti.base.prep-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Browse source 
Pull Page Table Isolation (PTI) preparatory tree from Ingo Molnar:
 "This does a rename to free up linux/pti.h to be used by the upcoming
  page table isolation feature"

* 'WIP.x86-pti.base.prep-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  drivers/misc/intel/pti: Rename the header file to free up the namespace
This commit is contained in:
Linus Torvalds 2017-12-17 13:54:31 -08:00
commit 6ba64feff6
2 changed files with 4 additions and 4 deletions
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2
drivers/misc/pti.c
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@ -32,7 +32,7 @@
#include <linux/pci.h>
#include <linux/mutex.h>
#include <linux/miscdevice.h>
#include <linux/pti.h>
#include <linux/intel-pti.h>
#include <linux/slab.h>
#include <linux/uaccess.h>

43
include/linux/intel-pti.h Normal file
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@ -0,0 +1,43 @@
/*
* Copyright (C) Intel 2011
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* The PTI (Parallel Trace Interface) driver directs trace data routed from
* various parts in the system out through the Intel Penwell PTI port and
* out of the mobile device for analysis with a debugging tool
* (Lauterbach, Fido). This is part of a solution for the MIPI P1149.7,
* compact JTAG, standard.
*
* This header file will allow other parts of the OS to use the
* interface to write out it's contents for debugging a mobile system.
*/
#ifndef LINUX_INTEL_PTI_H_
#define LINUX_INTEL_PTI_H_
/* offset for last dword of any PTI message. Part of MIPI P1149.7 */
#define PTI_LASTDWORD_DTS 0x30
/* basic structure used as a write address to the PTI HW */
struct pti_masterchannel {
u8 master;
u8 channel;
};
/* the following functions are defined in misc/pti.c */
void pti_writedata(struct pti_masterchannel *mc, u8 *buf, int count);
struct pti_masterchannel *pti_request_masterchannel(u8 type,
const char *thread_name);
void pti_release_masterchannel(struct pti_masterchannel *mc);
#endif /* LINUX_INTEL_PTI_H_ */