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2015-01-09mei: clean reset bit before resetAlexander Usyskin1-0/+12
H_RST bit in H_CSR register may be found lit before reset is started, for example if preceding reset flow hasn't completed. In that case asserting H_RST will be ignored, therefore we need to clean H_RST bit to start a successful reset sequence. Cc: <stable@vger.kernel.org> #3.10+ Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-12-14Merge tag 'char-misc-3.19-rc1' of ↵Linus Torvalds18-120/+239
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here's the big char/misc driver update for 3.19-rc1 Lots of little things all over the place in different drivers, and a new subsystem, "coresight" has been added. Full details are in the shortlog" * tag 'char-misc-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (73 commits) parport: parport_pc, do not remove parent devices early spmi: Remove shutdown/suspend/resume kernel-doc carma-fpga-program: drop videobuf dependency carma-fpga: drop videobuf dependency carma-fpga-program.c: fix compile errors i8k: Fix temperature bug handling in i8k_get_temp() cxl: Name interrupts in /proc/interrupt CXL: Return error to PSL if IRQ demultiplexing fails & print clearer warning coresight-replicator: remove .owner field for driver coresight: fixed comments in coresight.h coresight: fix typo in comment in coresight-priv.h coresight: bindings for coresight drivers coresight: Adding ABI documentation w1: support auto-load of w1_bq27000 module. w1: avoid potential u16 overflow cn: verify msg->len before making callback mei: export fw status registers through sysfs mei: read and print all six FW status registers mei: txe: add cherrytrail device id mei: kill cached host and me csr values ...
2014-12-05misc / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PMRafael J. Wysocki3-12/+8
After commit b2b49ccbdd54 (PM: Kconfig: Set PM_RUNTIME if PM_SLEEP is selected) PM_RUNTIME is always set if PM is set, so #ifdef blocks depending on CONFIG_PM_RUNTIME may now be changed to depend on CONFIG_PM. Replace CONFIG_PM_RUNTIME with CONFIG_PM everywhere under drivers/misc/. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-26mei: export fw status registers through sysfsTomas Winkler1-2/+41
The interface is for applications that monitor the fw health. We use device_create_with_groups interface to register attribute with the mei class device Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-26mei: read and print all six FW status registersAlexander Usyskin7-29/+100
ME devices prior to PCH8 (Lynx Point) have two FW status registers, on PCH8 and newer excluding txe there are six FW status registers. Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-26mei: txe: add cherrytrail device idTomas Winkler1-0/+1
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-26mei: kill cached host and me csr valuesTomas Winkler2-21/+16
Kill host_hw_status and me_hw_state from me hw structure that used to cache host and me csr values. We do not use the cached values across the function calls anymore Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-07mei: fix hbm MEI_HBM_STARTED ambiguityTomas Winkler2-4/+2
We have MEI_HBM_STARTED in two contexts one after start message was received and second after enumeration was completed. Because after start message reception we move immediately to the enumeration state, we need only the later meaning. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-07mei: nfc: clean nfc internal struct on host exitTomas Winkler3-11/+46
NFC internal structure cleaning was dropped by commit commit 487056932d372cc4f6c636f21a928d6667b151d7 Author: Tomas Winkler <tomas.winkler@intel.com> Date: Mon Feb 17 15:13:19 2014 +0200 mei: Remove all bus devices from the mei_dev list when stopping the MEI When stopping the MEI, we should remove and potentially unregister all bus devices queued on the mei_dev linked list. We allocate nfc_dev and free it across the reset so we do not keep it in dirty state Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03mei: hbm: use client specific print functionsAlexander Usyskin1-8/+8
We have host client in connect/disconnect response processors, so use client print functions to simplify and unify code. Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03mei: debugfs: display also connectionless clientsTomas Winkler1-6/+2
<debugfs>meiX/meclients: display also fixed/connectionless clients Use better name for fixed client field: fixed_address is boolean and indicates whether a client is fixed or dynamic. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03mei: use local cl variables in wd and amthifTomas Winkler2-7/+12
Use local cl variable instead of dev->iamthif_cl and dev->wd_cl as the first step to use dynamic allocation of these clients as their are not supported on all platforms Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03mei: drop unneeded client NULL check in cb structureAlexander Usyskin4-32/+11
The pointer to client in the callback structure (cb->cl) can't be NULL with current locking. We can drop check and warnings as in some cases this just uselessly complicates the code flow. Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-10-08Merge tag 'char-misc-3.18-rc1' of ↵Linus Torvalds20-1037/+1409
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here's the big set of driver patches for char/misc drivers. Nothing major in here, the shortlog goes into the details. All have been in the linux-next tree for a while with no issues" * tag 'char-misc-3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (80 commits) mei: mei_txe_fw_sts can be static mei: fix kernel-doc warnings mei: fix KDoc documentation formatting mei: drop me_client_presentation_num mei: trivial: fix errors in prints in comments mei: remove include to pci header from mei module files mei: push pci cfg structure me hw mei: remove the reference to pdev from mei_device mei: move fw_status back to hw ops handlers mei: get rid of most of the pci dependencies in mei mei: push all standard settings into mei_device_init mei: move mei_hbm_hdr function from hbm.h the hbm.c mei: kill error message for allocation failure mei: nfc: fix style warning mei: fix style warning: Missing a blank line after declarations mei: pg: fix cat and paste error in comments mei: debugfs: add single buffer indicator mei: debugfs: adjust print buffer mei: add hbm and pg state in devstate debugfs print Drivers: hv: vmbus: Enable interrupt driven flow control ...
2014-10-07Merge branch 'for-linus' of ↵Linus Torvalds2-4/+4
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull "trivial tree" updates from Jiri Kosina: "Usual pile from trivial tree everyone is so eagerly waiting for" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits) Remove MN10300_PROC_MN2WS0038 mei: fix comments treewide: Fix typos in Kconfig kprobes: update jprobe_example.c for do_fork() change Documentation: change "&" to "and" in Documentation/applying-patches.txt Documentation: remove obsolete pcmcia-cs from Changes Documentation: update links in Changes Documentation: Docbook: Fix generated DocBook/kernel-api.xml score: Remove GENERIC_HAS_IOMAP gpio: fix 'CONFIG_GPIO_IRQCHIP' comments tty: doc: Fix grammar in serial/tty dma-debug: modify check_for_stack output treewide: fix errors in printk genirq: fix reference in devm_request_threaded_irq comment treewide: fix synchronize_rcu() in comments checkstack.pl: port to AArch64 doc: queue-sysfs: minor fixes init/do_mounts: better syntax description MIPS: fix comment spelling powerpc/simpleboot: fix comment ...
2014-09-29mei: mei_txe_fw_sts can be staticFengguang Wu1-1/+1
CC: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-29mei: fix kernel-doc warningsAlexander Usyskin14-67/+231
Add missed parameters descriptions and return values descriptions Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-29mei: fix KDoc documentation formattingAlexander Usyskin15-225/+243
Fix Kdoc documentation formatting warnings genertaed by ./scripts/kernel-doc Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-29mei: drop me_client_presentation_numAlexander Usyskin2-3/+0
me_client_presentation_num field is not used for any particular purpose now, so it can be safely dropped. Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-29mei: trivial: fix errors in prints in commentsAlexander Usyskin3-4/+4
Fix misspellings and wrong print texts Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-29mei: remove include to pci header from mei module filesTomas Winkler10-11/+9
Remove inclusion of linux/pci.h in mei layer however we need to include the headers that before got included implicitly from linux/pci.h. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-29mei: push pci cfg structure me hwTomas Winkler6-45/+41
Device specific configurations are currently only needed by me hw so we can remove it from txe Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-29mei: remove the reference to pdev from mei_deviceTomas Winkler5-8/+4
For purpose of adding testing HW we would like to get rid of pci dependency in generic mei code. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-29mei: move fw_status back to hw ops handlersTomas Winkler4-22/+66
fw status retrieval has pci specific implementation so we push it back to the hw layer Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-29mei: get rid of most of the pci dependencies in meiTomas Winkler15-251/+239
For purpose of adding testing HW we would like to get rid of pci dependency in generic mei code This patch provides only straight forward changes FW status and prob quirks need to be handled separately Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-29mei: push all standard settings into mei_device_initTomas Winkler4-10/+21
Setting of hw_ops and device has should be in mei_device_init. We add reference to the parent device and remove pci dependent cfg Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-29mei: move mei_hbm_hdr function from hbm.h the hbm.cTomas Winkler2-9/+16
mei_hbm_hder helper function is only used in hbm.c so there is no need to define it in a header file Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-29mei: kill error message for allocation failureTomas Winkler3-5/+1
There is no need to log memory allocation errors as this is already done by the memory subsystem. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-29mei: nfc: fix style warningTomas Winkler1-1/+0
fix style warning: void function return statements are not generally useful Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-29mei: fix style warning: Missing a blank line after declarationsTomas Winkler9-6/+51
fix new style warning: Missing a blank line after declarations Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-29mei: pg: fix cat and paste error in commentsTomas Winkler1-2/+2
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-29mei: debugfs: add single buffer indicatorTomas Winkler1-3/+4
Add indication whether the client operates in single buffer mode Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-29mei: debugfs: adjust print bufferAlexander Usyskin1-7/+15
In case of many me clients (15 and more) 1K buffer is not enough for full information print. Calculate buffer size according to real clients number. Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-29mei: add hbm and pg state in devstate debugfs printAlexander Usyskin5-1/+38
Add hbm state, pg enablement and state to devstate file in debugfs (<debugfs>/mei/devstate) Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-26mei: fix commentsGeert Uytterhoeven2-4/+4
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: "Winkler, Tomas" <tomas.winkler@intel.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-09-23mei: bus: fix possible boundaries violationAlexander Usyskin1-1/+1
function 'strncpy' will fill whole buffer 'id.name' of fixed size (32) with string value and will not leave place for NULL-terminator. Possible buffer boundaries violation in following string operations. Replace strncpy with strlcpy. Cc: stable@vger.kernel.org # 3.10+ Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23mei: use connect_data on the stackTomas Winkler1-16/+5
There is no need for dynamic allocation for connect_data. We can use variable on the stack and make code less error prone and simple Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23mei: enable adding more IOCTL handlersTomas Winkler1-25/+28
Handle ioctls in a switch statement so we can add more commands easily Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23mei: extract supported features from the hbm versionTomas Winkler3-6/+29
extract supported hbm features and commands from the hbm version Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23mei: simplify handling of hbm client eventsTomas Winkler1-31/+43
Add mei_hbm_cl_find_by_cmd handler to retrieve the destination client Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23mei: wait for hbm start non-interruptibleAlexander Usyskin4-14/+22
We cannot handle user interrupt in context of hbm start so we only wait for time out which is reasonably short. 1. Add kdoc 2. Rename state to better reflect its function 3. Simplify wait condition and rename wait_recvd_msg to wait_hbm_start Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23mei: revamp connect and disconnect response handlingTomas Winkler2-57/+65
Both responses have same flow only the client status update is different. We introduce handler mei_hbm_cl_res() that handles both responses Also we use per client wait queue (cl->wait) rather then global dev->wait_recvd_msg Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23mei: use disconnect name consistentlyTomas Winkler3-9/+8
Rename mei_cl_irq_close to mei_cl_irq_disconnect and MEI_FOP_CLOSE to MEI_FOP_DISCONNECT Remove unused MEI_FOP_OPEN Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23mei: add hbm commands return status valuesTomas Winkler2-8/+53
HBM uses global list of status values from which the values of particular commands are derived Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23mei: add mei_me_cl_by_uuid_id functionTomas Winkler8-9/+26
When handling dynamic clients there might be a race scenario in which two me clients with the same me address would be linked in the me clients list, therefore we need to search by both uuid and me address. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23mei: add me client remove functionsTomas Winkler3-7/+38
To support dynamic addition/remove we add wrappers for removal of me clients Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23mei: use list for me clients book keepingTomas Winkler5-103/+71
To support dynamic addition/remove of clients it is more convenient to use list instead of static array Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23mei: me_client lookup function to return me_client objectTomas Winkler8-89/+74
For support of dynamic addition and removal of me clients it is more convenient to use a list instead of static array as is use now. As the first step of the transition to the new data structure we change the lookup function so it returns me client address instead of an index. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23mei: use wrapper for simple hbm client messageTomas Winkler1-26/+25
Reduce few code lines by using wrappers for sending simple hbm client messages Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23mei: use consistently me_addr in the hbm structuresTomas Winkler2-6/+5
Use consistently me_addr name in hbm protocol structures to represent in firmware client address Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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