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Leo Yan 323ed1e0f6 coresight: tmc: Fix bad register address for CLAIM 
Commit 4d3ebd3658 ("coreisght: tmc: Claim device before use") uses
CLAIM tag to validate if the device is available, it needs to pass
the device base address to access related registers.

In the function tmc_etb_disable_hw() it wrongly passes the driver data
pointer as register base address, thus it's easily to produce the kernel
warning info like below:

[   83.579898] WARNING: CPU: 4 PID: 2970 at drivers/hwtracing/coresight/coresight.c:207 coresight_disclaim_device_unlocked+0x44/0x80
[   83.591448] Modules linked in:
[   83.594485] CPU: 4 PID: 2970 Comm: uname Not tainted 4.19.0-rc6-00417-g721b509 #110
[   83.602067] Hardware name: ARM Juno development board (r2) (DT)
[   83.607932] pstate: 80000085 (Nzcv daIf -PAN -UAO)
[   83.612681] pc : coresight_disclaim_device_unlocked+0x44/0x80
[   83.618375] lr : coresight_disclaim_device_unlocked+0x44/0x80
[   83.624064] sp : ffff00000fe3ba20
[   83.627347] x29: ffff00000fe3ba20 x28: ffff80002d430dc0
[   83.632618] x27: ffff800033177c00 x26: ffff80002eb44480
[   83.637889] x25: 0000000000000001 x24: ffff800033c72600
[   83.643160] x23: ffff0000099b11f8 x22: ffff0000099b11c8
[   83.648430] x21: 0000000000000002 x20: ffff800033a90418
[   83.653701] x19: ffff0000099b11c8 x18: 0000000000000000
[   83.658971] x17: 0000000000000000 x16: 0000000000000000
[   83.664241] x15: 0000000000000000 x14: 0000000000000000
[   83.669511] x13: 0000000000000000 x12: 0000000000000000
[   83.674782] x11: 0000000000000000 x10: 0000000000000000
[   83.680052] x9 : 0000000000000000 x8 : 0000000000000001
[   83.685322] x7 : 0000000000010000 x6 : ffff800033ebab18
[   83.690593] x5 : ffff800033ebab18 x4 : ffff800033e6c698
[   83.695862] x3 : 0000000000000001 x2 : 0000000000000000
[   83.701133] x1 : 0000000000000000 x0 : 0000000000000001
[   83.706404] Call trace:
[   83.708830]  coresight_disclaim_device_unlocked+0x44/0x80
[   83.714180]  coresight_disclaim_device+0x34/0x48
[   83.718756]  tmc_disable_etf_sink+0xc4/0xf0
[   83.722902]  coresight_disable_path_from+0xc8/0x240
[   83.727735]  coresight_disable_path+0x24/0x30
[   83.732053]  etm_event_stop+0x130/0x170
[   83.735854]  etm_event_del+0x24/0x30
[   83.739399]  event_sched_out.isra.51+0xcc/0x1e8
[   83.743887]  group_sched_out.part.53+0x44/0xb0
[   83.748291]  ctx_sched_out+0x298/0x2b8
[   83.752005]  task_ctx_sched_out+0x74/0xa8
[   83.755980]  perf_event_exit_task+0x140/0x418
[   83.760298]  do_exit+0x3f4/0xcf0
[   83.763497]  do_group_exit+0x5c/0xc0
[   83.767041]  __arm64_sys_exit_group+0x24/0x28
[   83.771359]  el0_svc_common+0x110/0x178
[   83.775160]  el0_svc_handler+0x94/0xe8
[   83.778875]  el0_svc+0x8/0xc
[   83.781728] ---[ end trace 02d8d8eac46db9e5 ]---

This patch is to fix this bug by using 'drvdata->base' as the
register base address for CLAIM related operation.

Fixes: 4d3ebd3658 ("coreisght: tmc: Claim device before use")
Cc: Suzuki Poulose <suzuki.poulose@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Robert Walker <robert.walker@arm.com>
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-12-06 15:41:55 +01:00
arch Merge 4.20-rc5 into char-misc-next 2018-12-03 07:56:15 +01:00
block block: fix single range discard merge 2018-11-30 10:07:57 -07:00
certs export.h: remove VMLINUX_SYMBOL() and VMLINUX_SYMBOL_STR() 2018-08-22 23:21:44 +09:00
crypto crypto: user - Zeroize whole structure given to user space 2018-11-09 17:35:43 +08:00
Documentation Merge 4.20-rc5 into char-misc-next 2018-12-03 07:56:15 +01:00
drivers coresight: tmc: Fix bad register address for CLAIM 2018-12-06 15:41:55 +01:00
firmware kbuild: remove all dummy assignments to obj- 2017-11-18 11:46:06 +09:00
fs for-linus-20181201 2018-12-01 11:36:32 -08:00
include Merge 4.20-rc5 into char-misc-next 2018-12-03 07:56:15 +01:00
init initramfs: clean old path before creating a hardlink 2018-11-30 14:56:14 -08:00
ipc ipc: IPCMNI limit check for semmni 2018-10-31 08:54:14 -07:00
kernel Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-12-01 12:35:48 -08:00
lib debugobjects: avoid recursive calls with kmemleak 2018-11-30 14:56:14 -08:00
LICENSES This is a fairly typical cycle for documentation. There's some welcome 2018-10-24 18:01:11 +01:00
mm mm/khugepaged: fix the xas_create_range() error path 2018-11-30 14:56:15 -08:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf 2018-11-28 11:02:45 -08:00
samples VFIO updates for v4.20 2018-10-31 11:01:38 -07:00
scripts Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-12-01 12:35:48 -08:00
security selinux/stable-4.20 PR 20181129 2018-11-29 10:15:06 -08:00
sound ALSA: usb-audio: Add vendor and product name for Dell WD19 Dock 2018-11-28 10:59:49 +01:00
tools Merge 4.20-rc5 into char-misc-next 2018-12-03 07:56:15 +01:00
usr initramfs: move gen_initramfs_list.sh from scripts/ to usr/ 2018-08-22 23:21:44 +09:00
virt Revert "mm, mmu_notifier: annotate mmu notifiers with blockable invalidate callbacks" 2018-10-26 16:25:19 -07:00
.clang-format page cache: Convert find_get_pages_contig to XArray 2018-10-21 10:46:34 -04:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore
.gitattributes .gitattributes: set git diff driver for C source code files 2016-10-07 18:46:30 -07:00
.gitignore Kbuild updates for v4.17 (2nd) 2018-04-15 17:21:30 -07:00
.mailmap mailmap: Update email for Punit Agrawal 2018-11-05 10:02:11 +00:00
COPYING COPYING: use the new text with points to the license files 2018-03-23 12:41:45 -06:00
CREDITS MAINTAINERS: change Sparse's maintainer 2018-11-25 09:17:43 -08:00
Kbuild Kbuild updates for v4.15 2017-11-17 17:45:29 -08:00
Kconfig kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt 2018-08-02 08:06:55 +09:00
MAINTAINERS Merge 4.20-rc5 into char-misc-next 2018-12-03 07:56:15 +01:00
Makefile Linux 4.20-rc5 2018-12-02 15:07:55 -08:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.