提交 1c00038c 编写于 作者: L Linus Torvalds

Merge tag 'char-misc-4.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver patches from Greg KH:
 "Here's the "big" char/misc driver update for 4.3-rc1.

  Not much really interesting here, just a number of little changes all
  over the place, and some nice consolidation of the nvmem drivers to a
  common framework.  As usual, the mei drivers stand out as the largest
  "churn" to handle new devices and features in their hardware.

  All have been in linux-next for a while with no issues"

* tag 'char-misc-4.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (136 commits)
  auxdisplay: ks0108: initialize local parport variable
  extcon: palmas: Fix build break due to devm_gpiod_get_optional API change
  extcon: palmas: Support GPIO based USB ID detection
  extcon: Fix signedness bugs about break error handling
  extcon: Drop owner assignment from i2c_driver
  extcon: arizona: Simplify pdata symantics for micd_dbtime
  extcon: arizona: Declare 3-pole jack if we detect open circuit on mic
  extcon: Add exception handling to prevent the NULL pointer access
  extcon: arizona: Ensure variables are set for headphone detection
  extcon: arizona: Use gpiod inteface to handle micd_pol_gpio gpio
  extcon: arizona: Add basic microphone detection DT/ACPI bindings
  extcon: arizona: Update to use the new device properties API
  extcon: palmas: Remove the mutually_exclusive array
  extcon: Remove optional print_state() function pointer of struct extcon_dev
  extcon: Remove duplicate header file in extcon.h
  extcon: max77843: Clear IRQ bits state before request IRQ
  toshiba laptop: replace ioremap_cache with ioremap
  misc: eeprom: max6875: clean up max6875_read()
  misc: eeprom: clean up eeprom_read()
  misc: eeprom: 93xx46: clean up eeprom_93xx46_bin_read/write
  ...
What: /sys/bus/vmbus/devices/vmbus_*/id
Date: Jul 2009
KernelVersion: 2.6.31
Contact: K. Y. Srinivasan <kys@microsoft.com>
Description: The VMBus child_relid of the device's primary channel
Users: tools/hv/lsvmbus
What: /sys/bus/vmbus/devices/vmbus_*/class_id
Date: Jul 2009
KernelVersion: 2.6.31
Contact: K. Y. Srinivasan <kys@microsoft.com>
Description: The VMBus interface type GUID of the device
Users: tools/hv/lsvmbus
What: /sys/bus/vmbus/devices/vmbus_*/device_id
Date: Jul 2009
KernelVersion: 2.6.31
Contact: K. Y. Srinivasan <kys@microsoft.com>
Description: The VMBus interface instance GUID of the device
Users: tools/hv/lsvmbus
What: /sys/bus/vmbus/devices/vmbus_*/channel_vp_mapping
Date: Jul 2015
KernelVersion: 4.2.0
Contact: K. Y. Srinivasan <kys@microsoft.com>
Description: The mapping of which primary/sub channels are bound to which
Virtual Processors.
Format: <channel's child_relid:the bound cpu's number>
Users: tools/hv/lsvmbus
......@@ -112,7 +112,7 @@ KernelVersion: 3.19
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Mask to apply to all the context ID comparator.
What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/ctxid_val
What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/ctxid_pid
Date: November 2014
KernelVersion: 3.19
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
......
......@@ -249,7 +249,7 @@ KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Select which context ID comparator to work with.
What: /sys/bus/coresight/devices/<memory_map>.etm/ctxid_val
What: /sys/bus/coresight/devices/<memory_map>.etm/ctxid_pid
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
......
What: /sys/devices/*/<our-device>/eeprom
Date: August 2013
Contact: Oliver Schinagl <oliver@schinagl.nl>
Description: read-only access to the SID (Security-ID) on current
A-series SoC's from Allwinner. Currently supports A10, A10s, A13
and A20 CPU's. The earlier A1x series of SoCs exports 16 bytes,
whereas the newer A20 SoC exposes 512 bytes split into sections.
Besides the 16 bytes of SID, there's also an SJTAG area,
HDMI-HDCP key and some custom keys. Below a quick overview, for
details see the user manual:
0x000 128 bit root-key (sun[457]i)
0x010 128 bit boot-key (sun7i)
0x020 64 bit security-jtag-key (sun7i)
0x028 16 bit key configuration (sun7i)
0x02b 16 bit custom-vendor-key (sun7i)
0x02c 320 bit low general key (sun7i)
0x040 32 bit read-control access (sun7i)
0x064 224 bit low general key (sun7i)
0x080 2304 bit HDCP-key (sun7i)
0x1a0 768 bit high general key (sun7i)
Users: any user space application which wants to read the SID on
Allwinner's A-series of CPU's.
......@@ -17,6 +17,7 @@ its hardware characteristcs.
- "arm,coresight-tmc", "arm,primecell";
- "arm,coresight-funnel", "arm,primecell";
- "arm,coresight-etm3x", "arm,primecell";
- "arm,coresight-etm4x", "arm,primecell";
- "qcom,coresight-replicator1x", "arm,primecell";
* reg: physical base address and length of the register
......
......@@ -10,8 +10,11 @@ Required Properties:
Optional Properties:
- ti,wakeup : To enable the wakeup comparator in probe
- ti,enable-id-detection: Perform ID detection.
- ti,enable-id-detection: Perform ID detection. If id-gpio is specified
it performs id-detection using GPIO else using OTG core.
- ti,enable-vbus-detection: Perform VBUS detection.
- id-gpio: gpio for GPIO ID detection. See gpio binding.
- debounce-delay-ms: debounce delay for GPIO ID pin in milliseconds.
palmas-usb {
compatible = "ti,twl6035-usb", "ti,palmas-usb";
......
......@@ -4,6 +4,10 @@ Required properties:
- compatible: "allwinner,sun4i-a10-sid" or "allwinner,sun7i-a20-sid"
- reg: Should contain registers location and length
= Data cells =
Are child nodes of qfprom, bindings of which as described in
bindings/nvmem/nvmem.txt
Example for sun4i:
sid@01c23800 {
compatible = "allwinner,sun4i-a10-sid";
......
= NVMEM(Non Volatile Memory) Data Device Tree Bindings =
This binding is intended to represent the location of hardware
configuration data stored in NVMEMs like eeprom, efuses and so on.
On a significant proportion of boards, the manufacturer has stored
some data on NVMEM, for the OS to be able to retrieve these information
and act upon it. Obviously, the OS has to know about where to retrieve
these data from, and where they are stored on the storage device.
This document is here to document this.
= Data providers =
Contains bindings specific to provider drivers and data cells as children
of this node.
Optional properties:
read-only: Mark the provider as read only.
= Data cells =
These are the child nodes of the provider which contain data cell
information like offset and size in nvmem provider.
Required properties:
reg: specifies the offset in byte within the storage device.
Optional properties:
bits: Is pair of bit location and number of bits, which specifies offset
in bit and number of bits within the address range specified by reg property.
Offset takes values from 0-7.
For example:
/* Provider */
qfprom: qfprom@00700000 {
...
/* Data cells */
tsens_calibration: calib@404 {
reg = <0x404 0x10>;
};
tsens_calibration_bckp: calib_bckp@504 {
reg = <0x504 0x11>;
bits = <6 128>
};
pvs_version: pvs-version@6 {
reg = <0x6 0x2>
bits = <7 2>
};
speed_bin: speed-bin@c{
reg = <0xc 0x1>;
bits = <2 3>;
};
...
};
= Data consumers =
Are device nodes which consume nvmem data cells/providers.
Required-properties:
nvmem-cells: list of phandle to the nvmem data cells.
nvmem-cell-names: names for the each nvmem-cells specified. Required if
nvmem-cells is used.
Optional-properties:
nvmem : list of phandles to nvmem providers.
nvmem-names: names for the each nvmem provider. required if nvmem is used.
For example:
tsens {
...
nvmem-cells = <&tsens_calibration>;
nvmem-cell-names = "calibration";
};
= Qualcomm QFPROM device tree bindings =
This binding is intended to represent QFPROM which is found in most QCOM SOCs.
Required properties:
- compatible: should be "qcom,qfprom"
- reg: Should contain registers location and length
= Data cells =
Are child nodes of qfprom, bindings of which as described in
bindings/nvmem/nvmem.txt
Example:
qfprom: qfprom@00700000 {
compatible = "qcom,qfprom";
reg = <0x00700000 0x8000>;
...
/* Data cells */
tsens_calibration: calib@404 {
reg = <0x4404 0x10>;
};
};
= Data consumers =
Are device nodes which consume nvmem data cells.
For example:
tsens {
...
nvmem-cells = <&tsens_calibration>;
nvmem-cell-names = "calibration";
};
Qualcomm Coincell Charger:
The hardware block controls charging for a coincell or capacitor that is
used to provide power backup for certain features of the power management
IC (PMIC)
- compatible:
Usage: required
Value type: <string>
Definition: must be: "qcom,pm8941-coincell"
- reg:
Usage: required
Value type: <u32>
Definition: base address of the coincell charger registers
- qcom,rset-ohms:
Usage: required
Value type: <u32>
Definition: resistance (in ohms) for current-limiting resistor
must be one of: 800, 1200, 1700, 2100
- qcom,vset-millivolts:
Usage: required
Value type: <u32>
Definition: voltage (in millivolts) to apply for charging
must be one of: 2500, 3000, 3100, 3200
- qcom,charger-disable:
Usage: optional
Value type: <boolean>
Definition: definining this property disables charging
This charger is a sub-node of one of the 8941 PMIC blocks, and is specified
as a child node in DTS of that node. See ../mfd/qcom,spmi-pmic.txt and
../mfd/qcom-pm8xxx.txt
Example:
pm8941@0 {
coincell@2800 {
compatible = "qcom,pm8941-coincell";
reg = <0x2800>;
qcom,rset-ohms = <2100>;
qcom,vset-millivolts = <3000>;
};
};
......@@ -124,6 +124,8 @@ Code Seq#(hex) Include File Comments
'H' 00-7F linux/hiddev.h conflict!
'H' 00-0F linux/hidraw.h conflict!
'H' 01 linux/mei.h conflict!
'H' 02 linux/mei.h conflict!
'H' 03 linux/mei.h conflict!
'H' 00-0F sound/asound.h conflict!
'H' 20-40 sound/asound_fm.h conflict!
'H' 80-8F sound/sfnt_info.h conflict!
......
......@@ -96,7 +96,7 @@ A code snippet for an application communicating with Intel AMTHI client:
IOCTL
=====
The Intel MEI Driver supports the following IOCTL command:
The Intel MEI Driver supports the following IOCTL commands:
IOCTL_MEI_CONNECT_CLIENT Connect to firmware Feature (client).
usage:
......@@ -125,6 +125,49 @@ The Intel MEI Driver supports the following IOCTL command:
data that can be sent or received. (e.g. if MTU=2K, can send
requests up to bytes 2k and received responses up to 2k bytes).
IOCTL_MEI_NOTIFY_SET: enable or disable event notifications
Usage:
uint32_t enable;
ioctl(fd, IOCTL_MEI_NOTIFY_SET, &enable);
Inputs:
uint32_t enable = 1;
or
uint32_t enable[disable] = 0;
Error returns:
EINVAL Wrong IOCTL Number
ENODEV Device is not initialized or the client not connected
ENOMEM Unable to allocate memory to client internal data.
EFAULT Fatal Error (e.g. Unable to access user input data)
EOPNOTSUPP if the device doesn't support the feature
Notes:
The client must be connected in order to enable notification events
IOCTL_MEI_NOTIFY_GET : retrieve event
Usage:
uint32_t event;
ioctl(fd, IOCTL_MEI_NOTIFY_GET, &event);
Outputs:
1 - if an event is pending
0 - if there is no even pending
Error returns:
EINVAL Wrong IOCTL Number
ENODEV Device is not initialized or the client not connected
ENOMEM Unable to allocate memory to client internal data.
EFAULT Fatal Error (e.g. Unable to access user input data)
EOPNOTSUPP if the device doesn't support the feature
Notes:
The client must be connected and event notification has to be enabled
in order to receive an event
Intel ME Applications
=====================
......
NVMEM SUBSYSTEM
Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
This document explains the NVMEM Framework along with the APIs provided,
and how to use it.
1. Introduction
===============
*NVMEM* is the abbreviation for Non Volatile Memory layer. It is used to
retrieve configuration of SOC or Device specific data from non volatile
memories like eeprom, efuses and so on.
Before this framework existed, NVMEM drivers like eeprom were stored in
drivers/misc, where they all had to duplicate pretty much the same code to
register a sysfs file, allow in-kernel users to access the content of the
devices they were driving, etc.
This was also a problem as far as other in-kernel users were involved, since
the solutions used were pretty much different from one driver to another, there
was a rather big abstraction leak.
This framework aims at solve these problems. It also introduces DT
representation for consumer devices to go get the data they require (MAC
Addresses, SoC/Revision ID, part numbers, and so on) from the NVMEMs. This
framework is based on regmap, so that most of the abstraction available in
regmap can be reused, across multiple types of buses.
NVMEM Providers
+++++++++++++++
NVMEM provider refers to an entity that implements methods to initialize, read
and write the non-volatile memory.
2. Registering/Unregistering the NVMEM provider
===============================================
A NVMEM provider can register with NVMEM core by supplying relevant
nvmem configuration to nvmem_register(), on success core would return a valid
nvmem_device pointer.
nvmem_unregister(nvmem) is used to unregister a previously registered provider.
For example, a simple qfprom case:
static struct nvmem_config econfig = {
.name = "qfprom",
.owner = THIS_MODULE,
};
static int qfprom_probe(struct platform_device *pdev)
{
...
econfig.dev = &pdev->dev;
nvmem = nvmem_register(&econfig);
...
}
It is mandatory that the NVMEM provider has a regmap associated with its
struct device. Failure to do would return error code from nvmem_register().
NVMEM Consumers
+++++++++++++++
NVMEM consumers are the entities which make use of the NVMEM provider to
read from and to NVMEM.
3. NVMEM cell based consumer APIs
=================================
NVMEM cells are the data entries/fields in the NVMEM.
The NVMEM framework provides 3 APIs to read/write NVMEM cells.
struct nvmem_cell *nvmem_cell_get(struct device *dev, const char *name);
struct nvmem_cell *devm_nvmem_cell_get(struct device *dev, const char *name);
void nvmem_cell_put(struct nvmem_cell *cell);
void devm_nvmem_cell_put(struct device *dev, struct nvmem_cell *cell);
void *nvmem_cell_read(struct nvmem_cell *cell, ssize_t *len);
int nvmem_cell_write(struct nvmem_cell *cell, void *buf, ssize_t len);
*nvmem_cell_get() apis will get a reference to nvmem cell for a given id,
and nvmem_cell_read/write() can then read or write to the cell.
Once the usage of the cell is finished the consumer should call *nvmem_cell_put()
to free all the allocation memory for the cell.
4. Direct NVMEM device based consumer APIs
==========================================
In some instances it is necessary to directly read/write the NVMEM.
To facilitate such consumers NVMEM framework provides below apis.
struct nvmem_device *nvmem_device_get(struct device *dev, const char *name);
struct nvmem_device *devm_nvmem_device_get(struct device *dev,
const char *name);
void nvmem_device_put(struct nvmem_device *nvmem);
int nvmem_device_read(struct nvmem_device *nvmem, unsigned int offset,
size_t bytes, void *buf);
int nvmem_device_write(struct nvmem_device *nvmem, unsigned int offset,
size_t bytes, void *buf);
int nvmem_device_cell_read(struct nvmem_device *nvmem,
struct nvmem_cell_info *info, void *buf);
int nvmem_device_cell_write(struct nvmem_device *nvmem,
struct nvmem_cell_info *info, void *buf);
Before the consumers can read/write NVMEM directly, it should get hold
of nvmem_controller from one of the *nvmem_device_get() api.
The difference between these apis and cell based apis is that these apis always
take nvmem_device as parameter.
5. Releasing a reference to the NVMEM
=====================================
When a consumers no longer needs the NVMEM, it has to release the reference
to the NVMEM it has obtained using the APIs mentioned in the above section.
The NVMEM framework provides 2 APIs to release a reference to the NVMEM.
void nvmem_cell_put(struct nvmem_cell *cell);
void devm_nvmem_cell_put(struct device *dev, struct nvmem_cell *cell);
void nvmem_device_put(struct nvmem_device *nvmem);
void devm_nvmem_device_put(struct device *dev, struct nvmem_device *nvmem);
Both these APIs are used to release a reference to the NVMEM and
devm_nvmem_cell_put and devm_nvmem_device_put destroys the devres associated
with this NVMEM.
Userspace
+++++++++
6. Userspace binary interface
==============================
Userspace can read/write the raw NVMEM file located at
/sys/bus/nvmem/devices/*/nvmem
ex:
hexdump /sys/bus/nvmem/devices/qfprom0/nvmem
0000000 0000 0000 0000 0000 0000 0000 0000 0000
*
00000a0 db10 2240 0000 e000 0c00 0c00 0000 0c00
0000000 0000 0000 0000 0000 0000 0000 0000 0000
...
*
0001000
7. DeviceTree Binding
=====================
See Documentation/devicetree/bindings/nvmem/nvmem.txt
......@@ -72,7 +72,7 @@ More details follow:
|
v
Disable regular cpu hotplug
by setting cpu_hotplug_disabled=1
by increasing cpu_hotplug_disabled
|
v
Release cpu_add_remove_lock
......@@ -89,7 +89,7 @@ Resuming back is likewise, with the counterparts being (in the order of
execution during resume):
* enable_nonboot_cpus() which involves:
| Acquire cpu_add_remove_lock
| Reset cpu_hotplug_disabled to 0, thereby enabling regular cpu hotplug
| Decrease cpu_hotplug_disabled, thereby enabling regular cpu hotplug
| Call _cpu_up() [for all those cpus in the frozen_cpus mask, in a loop]
| Release cpu_add_remove_lock
v
......@@ -120,7 +120,7 @@ after the entire cycle is complete (i.e., suspend + resume).
Acquire cpu_add_remove_lock
|
v
If cpu_hotplug_disabled is 1
If cpu_hotplug_disabled > 0
return gracefully
|
|
......
......@@ -15,7 +15,7 @@ HW assisted tracing is becoming increasingly useful when dealing with systems
that have many SoCs and other components like GPU and DMA engines. ARM has
developed a HW assisted tracing solution by means of different components, each
being added to a design at synthesis time to cater to specific tracing needs.
Compoments are generally categorised as source, link and sinks and are
Components are generally categorised as source, link and sinks and are
(usually) discovered using the AMBA bus.
"Sources" generate a compressed stream representing the processor instruction
......@@ -138,7 +138,7 @@ void coresight_unregister(struct coresight_device *csdev);
The registering function is taking a "struct coresight_device *csdev" and
register the device with the core framework. The unregister function takes
a reference to a "strut coresight_device", obtained at registration time.
a reference to a "struct coresight_device", obtained at registration time.
If everything goes well during the registration process the new devices will
show up under /sys/bus/coresight/devices, as showns here for a TC2 platform:
......
......@@ -4966,6 +4966,7 @@ F: drivers/scsi/storvsc_drv.c
F: drivers/video/fbdev/hyperv_fb.c
F: include/linux/hyperv.h
F: tools/hv/
F: Documentation/ABI/stable/sysfs-bus-vmbus
I2C OVER PARALLEL PORT
M: Jean Delvare <jdelvare@suse.com>
......@@ -7298,6 +7299,15 @@ S: Supported
F: drivers/block/nvme*
F: include/linux/nvme.h
NVMEM FRAMEWORK
M: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
M: Maxime Ripard <maxime.ripard@free-electrons.com>
S: Maintained
F: drivers/nvmem/
F: Documentation/devicetree/bindings/nvmem/
F: include/linux/nvmem-consumer.h
F: include/linux/nvmem-provider.h
NXP-NCI NFC DRIVER
M: Clément Perrochaud <clement.perrochaud@effinnov.com>
R: Charles Gorand <charles.gorand@effinnov.com>
......
......@@ -17,3 +17,13 @@
status = "ok";
};
};
&spmi_bus {
pm8941@0 {
coincell@2800 {
status = "ok";
qcom,rset-ohms = <2100>;
qcom,vset-millivolts = <3000>;
};
};
};
......@@ -125,6 +125,12 @@
interrupts = <0x0 0x36 0x0 IRQ_TYPE_EDGE_RISING>;
qcom,external-resistor-micro-ohms = <10000>;
};
coincell@2800 {
compatible = "qcom,pm8941-coincell";
reg = <0x2800>;
status = "disabled";
};
};
usid1: pm8941@1 {
......
......@@ -7,6 +7,7 @@
struct ms_hyperv_info {
u32 features;
u32 misc_features;
u32 hints;
};
......@@ -20,4 +21,8 @@ void hyperv_vector_handler(struct pt_regs *regs);
void hv_setup_vmbus_irq(void (*handler)(void));
void hv_remove_vmbus_irq(void);
void hv_setup_kexec_handler(void (*handler)(void));
void hv_remove_kexec_handler(void);
void hv_setup_crash_handler(void (*handler)(struct pt_regs *regs));
void hv_remove_crash_handler(void);
#endif
......@@ -27,6 +27,8 @@
#define HV_X64_MSR_VP_RUNTIME_AVAILABLE (1 << 0)
/* Partition Reference Counter (HV_X64_MSR_TIME_REF_COUNT) available*/
#define HV_X64_MSR_TIME_REF_COUNT_AVAILABLE (1 << 1)
/* Partition reference TSC MSR is available */
#define HV_X64_MSR_REFERENCE_TSC_AVAILABLE (1 << 9)
/* A partition's reference time stamp counter (TSC) page */
#define HV_X64_MSR_REFERENCE_TSC 0x40000021
......
......@@ -18,6 +18,7 @@
#include <linux/efi.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/kexec.h>
#include <asm/processor.h>
#include <asm/hypervisor.h>
#include <asm/hyperv.h>
......@@ -28,10 +29,14 @@
#include <asm/i8259.h>
#include <asm/apic.h>
#include <asm/timer.h>
#include <asm/reboot.h>
struct ms_hyperv_info ms_hyperv;
EXPORT_SYMBOL_GPL(ms_hyperv);
static void (*hv_kexec_handler)(void);
static void (*hv_crash_handler)(struct pt_regs *regs);
#if IS_ENABLED(CONFIG_HYPERV)
static void (*vmbus_handler)(void);
......@@ -67,8 +72,47 @@ void hv_remove_vmbus_irq(void)
}
EXPORT_SYMBOL_GPL(hv_setup_vmbus_irq);
EXPORT_SYMBOL_GPL(hv_remove_vmbus_irq);
void hv_setup_kexec_handler(void (*handler)(void))
{
hv_kexec_handler = handler;
}
EXPORT_SYMBOL_GPL(hv_setup_kexec_handler);
void hv_remove_kexec_handler(void)
{
hv_kexec_handler = NULL;
}
EXPORT_SYMBOL_GPL(hv_remove_kexec_handler);
void hv_setup_crash_handler(void (*handler)(struct pt_regs *regs))
{
hv_crash_handler = handler;
}
EXPORT_SYMBOL_GPL(hv_setup_crash_handler);
void hv_remove_crash_handler(void)
{
hv_crash_handler = NULL;
}
EXPORT_SYMBOL_GPL(hv_remove_crash_handler);
#endif
static void hv_machine_shutdown(void)
{
if (kexec_in_progress && hv_kexec_handler)
hv_kexec_handler();
native_machine_shutdown();
}
static void hv_machine_crash_shutdown(struct pt_regs *regs)
{
if (hv_crash_handler)
hv_crash_handler(regs);
native_machine_crash_shutdown(regs);
}
static uint32_t __init ms_hyperv_platform(void)
{
u32 eax;
......@@ -114,6 +158,7 @@ static void __init ms_hyperv_init_platform(void)
* Extract the features and hints
*/
ms_hyperv.features = cpuid_eax(HYPERV_CPUID_FEATURES);
ms_hyperv.misc_features = cpuid_edx(HYPERV_CPUID_FEATURES);
ms_hyperv.hints = cpuid_eax(HYPERV_CPUID_ENLIGHTMENT_INFO);
printk(KERN_INFO "HyperV: features 0x%x, hints 0x%x\n",
......@@ -141,6 +186,8 @@ static void __init ms_hyperv_init_platform(void)
no_timer_check = 1;
#endif
machine_ops.shutdown = hv_machine_shutdown;
machine_ops.crash_shutdown = hv_machine_crash_shutdown;
}
const __refconst struct hypervisor_x86 x86_hyper_ms_hyperv = {
......
......@@ -184,4 +184,6 @@ source "drivers/android/Kconfig"
source "drivers/nvdimm/Kconfig"
source "drivers/nvmem/Kconfig"
endmenu
......@@ -165,3 +165,4 @@ obj-$(CONFIG_RAS) += ras/
obj-$(CONFIG_THUNDERBOLT) += thunderbolt/
obj-$(CONFIG_CORESIGHT) += hwtracing/coresight/
obj-$(CONFIG_ANDROID) += android/
obj-$(CONFIG_NVMEM) += nvmem/
......@@ -23,6 +23,8 @@
*
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/init.h>
#include <linux/module.h>
#include <linux/kernel.h>
......@@ -90,17 +92,19 @@ void ks0108_displaystate(unsigned char state)
void ks0108_startline(unsigned char startline)
{
ks0108_writedata(min(startline,(unsigned char)63) | bit(6) | bit(7));
ks0108_writedata(min_t(unsigned char, startline, 63) | bit(6) |
bit(7));
}
void ks0108_address(unsigned char address)
{
ks0108_writedata(min(address,(unsigned char)63) | bit(6));
ks0108_writedata(min_t(unsigned char, address, 63) | bit(6));
}
void ks0108_page(unsigned char page)
{
ks0108_writedata(min(page,(unsigned char)7) | bit(3) | bit(4) | bit(5) | bit(7));
ks0108_writedata(min_t(unsigned char, page, 7) | bit(3) | bit(4) |
bit(5) | bit(7));
}
EXPORT_SYMBOL_GPL(ks0108_writedata);
......@@ -121,52 +125,71 @@ unsigned char ks0108_isinited(void)
}
EXPORT_SYMBOL_GPL(ks0108_isinited);
/*
* Module Init & Exit
*/
static int __init ks0108_init(void)
static void ks0108_parport_attach(struct parport *port)
{
int result;
int ret = -EINVAL;
ks0108_parport = parport_find_base(ks0108_port);
if (ks0108_parport == NULL) {
printk(KERN_ERR KS0108_NAME ": ERROR: "
"parport didn't find %i port\n", ks0108_port);
goto none;
}
ks0108_pardevice = parport_register_device(ks0108_parport, KS0108_NAME,
NULL, NULL, NULL, PARPORT_DEV_EXCL, NULL);
if (ks0108_pardevice == NULL) {
printk(KERN_ERR KS0108_NAME ": ERROR: "
"parport didn't register new device\n");
goto none;
struct pardev_cb ks0108_cb;
if (port->base != ks0108_port)
return;
memset(&ks0108_cb, 0, sizeof(ks0108_cb));
ks0108_cb.flags = PARPORT_DEV_EXCL;
ks0108_pardevice = parport_register_dev_model(port, KS0108_NAME,
&ks0108_cb, 0);
if (!ks0108_pardevice) {
pr_err("ERROR: parport didn't register new device\n");
return;
}
result = parport_claim(ks0108_pardevice);
if (result != 0) {
printk(KERN_ERR KS0108_NAME ": ERROR: "
"can't claim %i parport, maybe in use\n", ks0108_port);
ret = result;
goto registered;
if (parport_claim(ks0108_pardevice)) {
pr_err("could not claim access to parport %i. Aborting.\n",
ks0108_port);
goto err_unreg_device;
}
ks0108_parport = port;
ks0108_inited = 1;
return 0;
return;
registered:
err_unreg_device:
parport_unregister_device(ks0108_pardevice);
none:
return ret;
ks0108_pardevice = NULL;
}
static void __exit ks0108_exit(void)
static void ks0108_parport_detach(struct parport *port)
{
if (port->base != ks0108_port)
return;
if (!ks0108_pardevice) {
pr_err("%s: already unregistered.\n", KS0108_NAME);
return;
}
parport_release(ks0108_pardevice);
parport_unregister_device(ks0108_pardevice);
ks0108_pardevice = NULL;
ks0108_parport = NULL;
}
/*
* Module Init & Exit
*/
static struct parport_driver ks0108_parport_driver = {
.name = "ks0108",
.match_port = ks0108_parport_attach,
.detach = ks0108_parport_detach,
.devmodel = true,
};
static int __init ks0108_init(void)
{
return parport_register_driver(&ks0108_parport_driver);
}
static void __exit ks0108_exit(void)
{
parport_unregister_driver(&ks0108_parport_driver);
}
module_init(ks0108_init);
......
......@@ -243,17 +243,15 @@ int misc_register(struct miscdevice * misc)
* @misc: device to unregister
*
* Unregister a miscellaneous device that was previously
* successfully registered with misc_register(). Success
* is indicated by a zero return, a negative errno code
* indicates an error.
* successfully registered with misc_register().
*/
int misc_deregister(struct miscdevice *misc)
void misc_deregister(struct miscdevice *misc)
{
int i = DYNAMIC_MINORS - misc->minor - 1;
if (WARN_ON(list_empty(&misc->list)))
return -EINVAL;
return;
mutex_lock(&misc_mtx);
list_del(&misc->list);
......@@ -261,7 +259,6 @@ int misc_deregister(struct miscdevice *misc)
if (i < DYNAMIC_MINORS && i >= 0)
clear_bit(i, misc_minors);
mutex_unlock(&misc_mtx);
return 0;
}
EXPORT_SYMBOL(misc_register);
......@@ -281,10 +278,9 @@ static char *misc_devnode(struct device *dev, umode_t *mode)
static int __init misc_init(void)
{
int err;
struct proc_dir_entry *ret;
#ifdef CONFIG_PROC_FS
proc_create("misc", 0, NULL, &misc_proc_fops);
#endif
ret = proc_create("misc", 0, NULL, &misc_proc_fops);
misc_class = class_create(THIS_MODULE, "misc");
err = PTR_ERR(misc_class);
if (IS_ERR(misc_class))
......@@ -300,7 +296,8 @@ static int __init misc_init(void)
printk("unable to get major %d for misc devices\n", MISC_MAJOR);
class_destroy(misc_class);
fail_remove:
remove_proc_entry("misc", NULL);
if (ret)
remove_proc_entry("misc", NULL);
return err;
}
subsys_initcall(misc_init);
......@@ -702,7 +702,7 @@ static void atari_proc_infos(unsigned char *nvram, struct seq_file *seq,
seq_printf(seq, "%ds%s\n", nvram[10],
nvram[10] < 8 ? ", no memory test" : "");
vmode = (nvram[14] << 8) || nvram[15];
vmode = (nvram[14] << 8) | nvram[15];
seq_printf(seq,
"Video mode : %s colors, %d columns, %s %s monitor\n",
colors[vmode & 7],
......
......@@ -430,7 +430,7 @@ static int tosh_probe(void)
int i,major,minor,day,year,month,flag;
unsigned char signature[7] = { 0x54,0x4f,0x53,0x48,0x49,0x42,0x41 };
SMMRegisters regs;
void __iomem *bios = ioremap_cache(0xf0000, 0x10000);
void __iomem *bios = ioremap(0xf0000, 0x10000);
if (!bios)
return -ENOMEM;
......
......@@ -193,14 +193,16 @@ static int xilly_probe(struct pci_dev *pdev,
}
/*
* In theory, an attempt to set the DMA mask to 64 and dma_using_dac=1
* is the right thing. But some unclever PCIe drivers report it's OK
* when the hardware drops those 64-bit PCIe packets. So trust
* nobody and use 32 bits DMA addressing in any case.
* Some (old and buggy?) hardware drops 64-bit addressed PCIe packets,
* even when the PCIe driver claims that a 64-bit mask is OK. On the
* other hand, on some architectures, 64-bit addressing is mandatory.
* So go for the 64-bit mask only when failing is the other option.
*/
if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
endpoint->dma_using_dac = 0;
} else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
endpoint->dma_using_dac = 1;
} else {
dev_err(endpoint->dev, "Failed to set DMA mask. Aborting.\n");
return -ENODEV;
......
......@@ -20,10 +20,12 @@
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/err.h>
#include <linux/gpio/consumer.h>
#include <linux/gpio.h>
#include <linux/input.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/property.h>
#include <linux/regulator/consumer.h>
#include <linux/extcon.h>
......@@ -46,6 +48,9 @@
#define HPDET_DEBOUNCE 500
#define DEFAULT_MICD_TIMEOUT 2000
#define MICD_DBTIME_TWO_READINGS 2
#define MICD_DBTIME_FOUR_READINGS 4
#define MICD_LVL_1_TO_7 (ARIZONA_MICD_LVL_1 | ARIZONA_MICD_LVL_2 | \
ARIZONA_MICD_LVL_3 | ARIZONA_MICD_LVL_4 | \
ARIZONA_MICD_LVL_5 | ARIZONA_MICD_LVL_6 | \
......@@ -94,6 +99,8 @@ struct arizona_extcon_info {
int hpdet_ip_version;
struct extcon_dev *edev;
struct gpio_desc *micd_pol_gpio;
};
static const struct arizona_micd_config micd_default_modes[] = {
......@@ -204,6 +211,10 @@ static void arizona_extcon_set_mode(struct arizona_extcon_info *info, int mode)
if (arizona->pdata.micd_pol_gpio > 0)
gpio_set_value_cansleep(arizona->pdata.micd_pol_gpio,
info->micd_modes[mode].gpio);
else
gpiod_set_value_cansleep(info->micd_pol_gpio,
info->micd_modes[mode].gpio);
regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1,
ARIZONA_MICD_BIAS_SRC_MASK,
info->micd_modes[mode].bias <<
......@@ -757,10 +768,11 @@ static void arizona_micd_timeout_work(struct work_struct *work)
mutex_lock(&info->lock);
dev_dbg(info->arizona->dev, "MICD timed out, reporting HP\n");
arizona_identify_headphone(info);
info->detecting = false;
arizona_identify_headphone(info);
arizona_stop_mic(info);
mutex_unlock(&info->lock);
......@@ -820,12 +832,18 @@ static void arizona_micd_detect(struct work_struct *work)
/* Due to jack detect this should never happen */
if (!(val & ARIZONA_MICD_STS)) {
dev_warn(arizona->dev, "Detected open circuit\n");
info->mic = false;
arizona_stop_mic(info);
info->detecting = false;
arizona_identify_headphone(info);
goto handled;
}
/* If we got a high impedence we should have a headset, report it. */
if (info->detecting && (val & ARIZONA_MICD_LVL_8)) {
info->mic = true;
info->detecting = false;
arizona_identify_headphone(info);
ret = extcon_set_cable_state_(info->edev,
......@@ -841,8 +859,6 @@ static void arizona_micd_detect(struct work_struct *work)
ret);
}
info->mic = true;
info->detecting = false;
goto handled;
}
......@@ -855,10 +871,11 @@ static void arizona_micd_detect(struct work_struct *work)
if (info->detecting && (val & MICD_LVL_1_TO_7)) {
if (info->jack_flips >= info->micd_num_modes * 10) {
dev_dbg(arizona->dev, "Detected HP/line\n");
arizona_identify_headphone(info);
info->detecting = false;
arizona_identify_headphone(info);
arizona_stop_mic(info);
} else {
info->micd_mode++;
......@@ -1110,12 +1127,12 @@ static void arizona_micd_set_level(struct arizona *arizona, int index,
regmap_update_bits(arizona->regmap, reg, mask, level);
}
static int arizona_extcon_of_get_pdata(struct arizona *arizona)
static int arizona_extcon_device_get_pdata(struct arizona *arizona)
{
struct arizona_pdata *pdata = &arizona->pdata;
unsigned int val = ARIZONA_ACCDET_MODE_HPL;
of_property_read_u32(arizona->dev->of_node, "wlf,hpdet-channel", &val);
device_property_read_u32(arizona->dev, "wlf,hpdet-channel", &val);
switch (val) {
case ARIZONA_ACCDET_MODE_HPL:
case ARIZONA_ACCDET_MODE_HPR:
......@@ -1127,6 +1144,24 @@ static int arizona_extcon_of_get_pdata(struct arizona *arizona)
pdata->hpdet_channel = ARIZONA_ACCDET_MODE_HPL;
}
device_property_read_u32(arizona->dev, "wlf,micd-detect-debounce",
&pdata->micd_detect_debounce);
device_property_read_u32(arizona->dev, "wlf,micd-bias-start-time",
&pdata->micd_bias_start_time);
device_property_read_u32(arizona->dev, "wlf,micd-rate",
&pdata->micd_rate);
device_property_read_u32(arizona->dev, "wlf,micd-dbtime",
&pdata->micd_dbtime);
device_property_read_u32(arizona->dev, "wlf,micd-timeout",
&pdata->micd_timeout);
pdata->micd_force_micbias = device_property_read_bool(arizona->dev,
"wlf,micd-force-micbias");
return 0;
}
......@@ -1147,10 +1182,8 @@ static int arizona_extcon_probe(struct platform_device *pdev)
if (!info)
return -ENOMEM;
if (IS_ENABLED(CONFIG_OF)) {
if (!dev_get_platdata(arizona->dev))
arizona_extcon_of_get_pdata(arizona);
}
if (!dev_get_platdata(arizona->dev))
arizona_extcon_device_get_pdata(arizona);
info->micvdd = devm_regulator_get(&pdev->dev, "MICVDD");
if (IS_ERR(info->micvdd)) {
......@@ -1241,6 +1274,27 @@ static int arizona_extcon_probe(struct platform_device *pdev)
arizona->pdata.micd_pol_gpio, ret);
goto err_register;
}
} else {
if (info->micd_modes[0].gpio)
mode = GPIOD_OUT_HIGH;
else
mode = GPIOD_OUT_LOW;
/* We can't use devm here because we need to do the get
* against the MFD device, as that is where the of_node
* will reside, but if we devm against that the GPIO
* will not be freed if the extcon driver is unloaded.
*/
info->micd_pol_gpio = gpiod_get_optional(arizona->dev,
"wlf,micd-pol",
GPIOD_OUT_LOW);
if (IS_ERR(info->micd_pol_gpio)) {
ret = PTR_ERR(info->micd_pol_gpio);
dev_err(arizona->dev,
"Failed to get microphone polarity GPIO: %d\n",
ret);
goto err_register;
}
}
if (arizona->pdata.hpdet_id_gpio > 0) {
......@@ -1251,7 +1305,7 @@ static int arizona_extcon_probe(struct platform_device *pdev)
if (ret != 0) {
dev_err(arizona->dev, "Failed to request GPIO%d: %d\n",
arizona->pdata.hpdet_id_gpio, ret);
goto err_register;
goto err_gpio;
}
}
......@@ -1267,11 +1321,19 @@ static int arizona_extcon_probe(struct platform_device *pdev)
arizona->pdata.micd_rate
<< ARIZONA_MICD_RATE_SHIFT);
if (arizona->pdata.micd_dbtime)
switch (arizona->pdata.micd_dbtime) {
case MICD_DBTIME_FOUR_READINGS:
regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1,
ARIZONA_MICD_DBTIME_MASK,
arizona->pdata.micd_dbtime
<< ARIZONA_MICD_DBTIME_SHIFT);
ARIZONA_MICD_DBTIME);
break;
case MICD_DBTIME_TWO_READINGS:
regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1,
ARIZONA_MICD_DBTIME_MASK, 0);
break;
default:
break;
}
BUILD_BUG_ON(ARRAY_SIZE(arizona_micd_levels) != 0x40);
......@@ -1295,7 +1357,7 @@ static int arizona_extcon_probe(struct platform_device *pdev)
dev_err(arizona->dev,
"MICD ranges must be sorted\n");
ret = -EINVAL;
goto err_input;
goto err_gpio;
}
}
}
......@@ -1314,7 +1376,7 @@ static int arizona_extcon_probe(struct platform_device *pdev)
dev_err(arizona->dev, "Unsupported MICD level %d\n",
info->micd_ranges[i].max);
ret = -EINVAL;
goto err_input;
goto err_gpio;
}
dev_dbg(arizona->dev, "%d ohms for MICD threshold %d\n",
......@@ -1387,7 +1449,7 @@ static int arizona_extcon_probe(struct platform_device *pdev)
if (ret != 0) {
dev_err(&pdev->dev, "Failed to get JACKDET rise IRQ: %d\n",
ret);
goto err_input;
goto err_gpio;
}
ret = arizona_set_irq_wake(arizona, jack_irq_rise, 1);
......@@ -1458,7 +1520,8 @@ static int arizona_extcon_probe(struct platform_device *pdev)
arizona_set_irq_wake(arizona, jack_irq_rise, 0);
err_rise:
arizona_free_irq(arizona, jack_irq_rise, info);
err_input:
err_gpio:
gpiod_put(info->micd_pol_gpio);
err_register:
pm_runtime_disable(&pdev->dev);
return ret;
......@@ -1470,6 +1533,8 @@ static int arizona_extcon_remove(struct platform_device *pdev)
struct arizona *arizona = info->arizona;
int jack_irq_rise, jack_irq_fall;
gpiod_put(info->micd_pol_gpio);
pm_runtime_disable(&pdev->dev);
regmap_update_bits(arizona->regmap,
......
......@@ -65,22 +65,6 @@ static irqreturn_t gpio_irq_handler(int irq, void *dev_id)
return IRQ_HANDLED;
}
static ssize_t extcon_gpio_print_state(struct extcon_dev *edev, char *buf)
{
struct device *dev = edev->dev.parent;
struct gpio_extcon_data *extcon_data = dev_get_drvdata(dev);
const char *state;
if (extcon_get_state(edev))
state = extcon_data->state_on;
else
state = extcon_data->state_off;
if (state)
return sprintf(buf, "%s\n", state);
return -EINVAL;
}
static int gpio_extcon_probe(struct platform_device *pdev)
{
struct gpio_extcon_platform_data *pdata = dev_get_platdata(&pdev->dev);
......@@ -110,8 +94,6 @@ static int gpio_extcon_probe(struct platform_device *pdev)
extcon_data->state_on = pdata->state_on;
extcon_data->state_off = pdata->state_off;
extcon_data->check_on_resume = pdata->check_on_resume;
if (pdata->state_on && pdata->state_off)
extcon_data->edev->print_state = extcon_gpio_print_state;
ret = devm_gpio_request_one(&pdev->dev, extcon_data->gpio, GPIOF_DIR_IN,
pdev->name);
......
......@@ -781,6 +781,15 @@ static int max77843_muic_probe(struct platform_device *pdev)
/* Support virtual irq domain for max77843 MUIC device */
INIT_WORK(&info->irq_work, max77843_muic_irq_work);
/* Clear IRQ bits before request IRQs */
ret = regmap_bulk_read(max77843->regmap_muic,
MAX77843_MUIC_REG_INT1, info->status,
MAX77843_MUIC_IRQ_NUM);
if (ret) {
dev_err(&pdev->dev, "Failed to Clear IRQ bits\n");
goto err_muic_irq;
}
for (i = 0; i < ARRAY_SIZE(max77843_muic_irqs); i++) {
struct max77843_muic_irq *muic_irq = &max77843_muic_irqs[i];
unsigned int virq = 0;
......
......@@ -28,6 +28,11 @@
#include <linux/mfd/palmas.h>
#include <linux/of.h>
#include <linux/of_platform.h>
#include <linux/of_gpio.h>
#include <linux/gpio/consumer.h>
#include <linux/workqueue.h>
#define USB_GPIO_DEBOUNCE_MS 20 /* ms */
static const unsigned int palmas_extcon_cable[] = {
EXTCON_USB,
......@@ -35,8 +40,6 @@ static const unsigned int palmas_extcon_cable[] = {
EXTCON_NONE,
};
static const int mutually_exclusive[] = {0x3, 0x0};
static void palmas_usb_wakeup(struct palmas *palmas, int enable)
{
if (enable)
......@@ -120,19 +123,54 @@ static irqreturn_t palmas_id_irq_handler(int irq, void *_palmas_usb)
return IRQ_HANDLED;
}
static void palmas_gpio_id_detect(struct work_struct *work)
{
int id;
struct palmas_usb *palmas_usb = container_of(to_delayed_work(work),
struct palmas_usb,
wq_detectid);
struct extcon_dev *edev = palmas_usb->edev;
if (!palmas_usb->id_gpiod)
return;
id = gpiod_get_value_cansleep(palmas_usb->id_gpiod);
if (id) {
extcon_set_cable_state_(edev, EXTCON_USB_HOST, false);
dev_info(palmas_usb->dev, "USB-HOST cable is detached\n");
} else {
extcon_set_cable_state_(edev, EXTCON_USB_HOST, true);
dev_info(palmas_usb->dev, "USB-HOST cable is attached\n");
}
}
static irqreturn_t palmas_gpio_id_irq_handler(int irq, void *_palmas_usb)
{
struct palmas_usb *palmas_usb = _palmas_usb;
queue_delayed_work(system_power_efficient_wq, &palmas_usb->wq_detectid,
palmas_usb->sw_debounce_jiffies);
return IRQ_HANDLED;
}
static void palmas_enable_irq(struct palmas_usb *palmas_usb)
{
palmas_write(palmas_usb->palmas, PALMAS_USB_OTG_BASE,
PALMAS_USB_VBUS_CTRL_SET,
PALMAS_USB_VBUS_CTRL_SET_VBUS_ACT_COMP);
palmas_write(palmas_usb->palmas, PALMAS_USB_OTG_BASE,
PALMAS_USB_ID_CTRL_SET, PALMAS_USB_ID_CTRL_SET_ID_ACT_COMP);
if (palmas_usb->enable_id_detection) {
palmas_write(palmas_usb->palmas, PALMAS_USB_OTG_BASE,
PALMAS_USB_ID_CTRL_SET,
PALMAS_USB_ID_CTRL_SET_ID_ACT_COMP);
palmas_write(palmas_usb->palmas, PALMAS_USB_OTG_BASE,
PALMAS_USB_ID_INT_EN_HI_SET,
PALMAS_USB_ID_INT_EN_HI_SET_ID_GND |
PALMAS_USB_ID_INT_EN_HI_SET_ID_FLOAT);
palmas_write(palmas_usb->palmas, PALMAS_USB_OTG_BASE,
PALMAS_USB_ID_INT_EN_HI_SET,
PALMAS_USB_ID_INT_EN_HI_SET_ID_GND |
PALMAS_USB_ID_INT_EN_HI_SET_ID_FLOAT);
}
if (palmas_usb->enable_vbus_detection)
palmas_vbus_irq_handler(palmas_usb->vbus_irq, palmas_usb);
......@@ -171,20 +209,37 @@ static int palmas_usb_probe(struct platform_device *pdev)
palmas_usb->wakeup = pdata->wakeup;
}
palmas_usb->id_gpiod = devm_gpiod_get_optional(&pdev->dev, "id",
GPIOD_IN);
if (IS_ERR(palmas_usb->id_gpiod)) {
dev_err(&pdev->dev, "failed to get id gpio\n");
return PTR_ERR(palmas_usb->id_gpiod);
}
if (palmas_usb->enable_id_detection && palmas_usb->id_gpiod) {
palmas_usb->enable_id_detection = false;
palmas_usb->enable_gpio_id_detection = true;
}
if (palmas_usb->enable_gpio_id_detection) {
u32 debounce;
if (of_property_read_u32(node, "debounce-delay-ms", &debounce))
debounce = USB_GPIO_DEBOUNCE_MS;
status = gpiod_set_debounce(palmas_usb->id_gpiod,
debounce * 1000);
if (status < 0)
palmas_usb->sw_debounce_jiffies = msecs_to_jiffies(debounce);
}
INIT_DELAYED_WORK(&palmas_usb->wq_detectid, palmas_gpio_id_detect);
palmas->usb = palmas_usb;
palmas_usb->palmas = palmas;
palmas_usb->dev = &pdev->dev;
palmas_usb->id_otg_irq = regmap_irq_get_virq(palmas->irq_data,
PALMAS_ID_OTG_IRQ);
palmas_usb->id_irq = regmap_irq_get_virq(palmas->irq_data,
PALMAS_ID_IRQ);
palmas_usb->vbus_otg_irq = regmap_irq_get_virq(palmas->irq_data,
PALMAS_VBUS_OTG_IRQ);
palmas_usb->vbus_irq = regmap_irq_get_virq(palmas->irq_data,
PALMAS_VBUS_IRQ);
palmas_usb_wakeup(palmas, palmas_usb->wakeup);
platform_set_drvdata(pdev, palmas_usb);
......@@ -195,7 +250,6 @@ static int palmas_usb_probe(struct platform_device *pdev)
dev_err(&pdev->dev, "failed to allocate extcon device\n");
return -ENOMEM;
}
palmas_usb->edev->mutually_exclusive = mutually_exclusive;
status = devm_extcon_dev_register(&pdev->dev, palmas_usb->edev);
if (status) {
......@@ -204,6 +258,10 @@ static int palmas_usb_probe(struct platform_device *pdev)
}
if (palmas_usb->enable_id_detection) {
palmas_usb->id_otg_irq = regmap_irq_get_virq(palmas->irq_data,
PALMAS_ID_OTG_IRQ);
palmas_usb->id_irq = regmap_irq_get_virq(palmas->irq_data,
PALMAS_ID_IRQ);
status = devm_request_threaded_irq(palmas_usb->dev,
palmas_usb->id_irq,
NULL, palmas_id_irq_handler,
......@@ -215,9 +273,33 @@ static int palmas_usb_probe(struct platform_device *pdev)
palmas_usb->id_irq, status);
return status;
}
} else if (palmas_usb->enable_gpio_id_detection) {
palmas_usb->gpio_id_irq = gpiod_to_irq(palmas_usb->id_gpiod);
if (palmas_usb->gpio_id_irq < 0) {
dev_err(&pdev->dev, "failed to get id irq\n");
return palmas_usb->gpio_id_irq;
}
status = devm_request_threaded_irq(&pdev->dev,
palmas_usb->gpio_id_irq,
NULL,
palmas_gpio_id_irq_handler,
IRQF_TRIGGER_RISING |
IRQF_TRIGGER_FALLING |
IRQF_ONESHOT,
"palmas_usb_id",
palmas_usb);
if (status < 0) {
dev_err(&pdev->dev,
"failed to request handler for id irq\n");
return status;
}
}
if (palmas_usb->enable_vbus_detection) {
palmas_usb->vbus_otg_irq = regmap_irq_get_virq(palmas->irq_data,
PALMAS_VBUS_OTG_IRQ);
palmas_usb->vbus_irq = regmap_irq_get_virq(palmas->irq_data,
PALMAS_VBUS_IRQ);
status = devm_request_threaded_irq(palmas_usb->dev,
palmas_usb->vbus_irq, NULL,
palmas_vbus_irq_handler,
......@@ -232,10 +314,21 @@ static int palmas_usb_probe(struct platform_device *pdev)
}
palmas_enable_irq(palmas_usb);
/* perform initial detection */
palmas_gpio_id_detect(&palmas_usb->wq_detectid.work);
device_set_wakeup_capable(&pdev->dev, true);
return 0;
}
static int palmas_usb_remove(struct platform_device *pdev)
{
struct palmas_usb *palmas_usb = platform_get_drvdata(pdev);
cancel_delayed_work_sync(&palmas_usb->wq_detectid);
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int palmas_usb_suspend(struct device *dev)
{
......@@ -246,6 +339,8 @@ static int palmas_usb_suspend(struct device *dev)
enable_irq_wake(palmas_usb->vbus_irq);
if (palmas_usb->enable_id_detection)
enable_irq_wake(palmas_usb->id_irq);
if (palmas_usb->enable_gpio_id_detection)
enable_irq_wake(palmas_usb->gpio_id_irq);
}
return 0;
}
......@@ -259,6 +354,8 @@ static int palmas_usb_resume(struct device *dev)
disable_irq_wake(palmas_usb->vbus_irq);
if (palmas_usb->enable_id_detection)
disable_irq_wake(palmas_usb->id_irq);
if (palmas_usb->enable_gpio_id_detection)
disable_irq_wake(palmas_usb->gpio_id_irq);
}
return 0;
};
......@@ -276,6 +373,7 @@ static const struct of_device_id of_palmas_match_tbl[] = {
static struct platform_driver palmas_usb_driver = {
.probe = palmas_usb_probe,
.remove = palmas_usb_remove,
.driver = {
.name = "palmas-usb",
.of_match_table = of_palmas_match_tbl,
......
......@@ -693,7 +693,6 @@ MODULE_DEVICE_TABLE(i2c, rt8973a_i2c_id);
static struct i2c_driver rt8973a_muic_i2c_driver = {
.driver = {
.name = "rt8973a",
.owner = THIS_MODULE,
.pm = &rt8973a_muic_pm_ops,
.of_match_table = rt8973a_dt_match,
},
......
......@@ -685,7 +685,6 @@ MODULE_DEVICE_TABLE(i2c, sm5502_i2c_id);
static struct i2c_driver sm5502_muic_i2c_driver = {
.driver = {
.name = "sm5502",
.owner = THIS_MODULE,
.pm = &sm5502_muic_pm_ops,
.of_match_table = sm5502_dt_match,
},
......
......@@ -15,6 +15,7 @@
*/
#include <linux/extcon.h>
#include <linux/gpio.h>
#include <linux/gpio/consumer.h>
#include <linux/init.h>
#include <linux/interrupt.h>
......
......@@ -126,7 +126,7 @@ static int find_cable_index_by_id(struct extcon_dev *edev, const unsigned int id
static int find_cable_id_by_name(struct extcon_dev *edev, const char *name)
{
unsigned int id = -EINVAL;
int id = -EINVAL;
int i = 0;
/* Find the id of extcon cable */
......@@ -143,7 +143,7 @@ static int find_cable_id_by_name(struct extcon_dev *edev, const char *name)
static int find_cable_index_by_name(struct extcon_dev *edev, const char *name)
{
unsigned int id;
int id;
if (edev->max_supported == 0)
return -EINVAL;
......@@ -172,14 +172,6 @@ static ssize_t state_show(struct device *dev, struct device_attribute *attr,
int i, count = 0;
struct extcon_dev *edev = dev_get_drvdata(dev);
if (edev->print_state) {
int ret = edev->print_state(edev, buf);
if (ret >= 0)
return ret;
/* Use default if failed */
}
if (edev->max_supported == 0)
return sprintf(buf, "%u\n", edev->state);
......@@ -272,6 +264,9 @@ int extcon_update_state(struct extcon_dev *edev, u32 mask, u32 state)
unsigned long flags;
bool attached;
if (!edev)
return -EINVAL;
spin_lock_irqsave(&edev->lock, flags);
if (edev->state != ((edev->state & ~mask) | (state & mask))) {
......@@ -345,6 +340,9 @@ EXPORT_SYMBOL_GPL(extcon_update_state);
*/
int extcon_set_state(struct extcon_dev *edev, u32 state)
{
if (!edev)
return -EINVAL;
return extcon_update_state(edev, 0xffffffff, state);
}
EXPORT_SYMBOL_GPL(extcon_set_state);
......@@ -358,6 +356,9 @@ int extcon_get_cable_state_(struct extcon_dev *edev, const unsigned int id)
{
int index;
if (!edev)
return -EINVAL;
index = find_cable_index_by_id(edev, id);
if (index < 0)
return index;
......@@ -378,7 +379,7 @@ EXPORT_SYMBOL_GPL(extcon_get_cable_state_);
*/
int extcon_get_cable_state(struct extcon_dev *edev, const char *cable_name)
{
unsigned int id;
int id;
id = find_cable_id_by_name(edev, cable_name);
if (id < 0)
......@@ -402,6 +403,9 @@ int extcon_set_cable_state_(struct extcon_dev *edev, unsigned int id,
u32 state;
int index;
if (!edev)
return -EINVAL;
index = find_cable_index_by_id(edev, id);
if (index < 0)
return index;
......@@ -426,7 +430,7 @@ EXPORT_SYMBOL_GPL(extcon_set_cable_state_);
int extcon_set_cable_state(struct extcon_dev *edev,
const char *cable_name, bool cable_state)
{
unsigned int id;
int id;
id = find_cable_id_by_name(edev, cable_name);
if (id < 0)
......@@ -444,6 +448,9 @@ struct extcon_dev *extcon_get_extcon_dev(const char *extcon_name)
{
struct extcon_dev *sd;
if (!extcon_name)
return ERR_PTR(-EINVAL);
mutex_lock(&extcon_dev_list_lock);
list_for_each_entry(sd, &extcon_dev_list, entry) {
if (!strcmp(sd->name, extcon_name))
......@@ -572,6 +579,9 @@ int extcon_register_notifier(struct extcon_dev *edev, unsigned int id,
unsigned long flags;
int ret, idx;
if (!edev || !nb)
return -EINVAL;
idx = find_cable_index_by_id(edev, id);
spin_lock_irqsave(&edev->lock, flags);
......@@ -594,6 +604,9 @@ int extcon_unregister_notifier(struct extcon_dev *edev, unsigned int id,
unsigned long flags;
int ret, idx;
if (!edev || !nb)
return -EINVAL;
idx = find_cable_index_by_id(edev, id);
spin_lock_irqsave(&edev->lock, flags);
......@@ -654,6 +667,9 @@ struct extcon_dev *extcon_dev_allocate(const unsigned int *supported_cable)
{
struct extcon_dev *edev;
if (!supported_cable)
return ERR_PTR(-EINVAL);
edev = kzalloc(sizeof(*edev), GFP_KERNEL);
if (!edev)
return ERR_PTR(-ENOMEM);
......@@ -754,7 +770,7 @@ int extcon_dev_register(struct extcon_dev *edev)
return ret;
}
if (!edev->supported_cable)
if (!edev || !edev->supported_cable)
return -EINVAL;
for (; edev->supported_cable[index] != EXTCON_NONE; index++);
......@@ -960,6 +976,9 @@ void extcon_dev_unregister(struct extcon_dev *edev)
{
int index;
if (!edev)
return;
mutex_lock(&extcon_dev_list_lock);
list_del(&edev->entry);
mutex_unlock(&extcon_dev_list_lock);
......@@ -1066,6 +1085,9 @@ struct extcon_dev *extcon_get_edev_by_phandle(struct device *dev, int index)
struct device_node *node;
struct extcon_dev *edev;
if (!dev)
return ERR_PTR(-EINVAL);
if (!dev->of_node) {
dev_err(dev, "device does not have a device node entry\n");
return ERR_PTR(-EINVAL);
......
......@@ -601,6 +601,7 @@ int vmbus_sendpacket_ctl(struct vmbus_channel *channel, void *buffer,
u64 aligned_data = 0;
int ret;
bool signal = false;
int num_vecs = ((bufferlen != 0) ? 3 : 1);
/* Setup the descriptor */
......@@ -618,7 +619,8 @@ int vmbus_sendpacket_ctl(struct vmbus_channel *channel, void *buffer,
bufferlist[2].iov_base = &aligned_data;
bufferlist[2].iov_len = (packetlen_aligned - packetlen);
ret = hv_ringbuffer_write(&channel->outbound, bufferlist, 3, &signal);
ret = hv_ringbuffer_write(&channel->outbound, bufferlist, num_vecs,
&signal);
/*
* Signalling the host is conditional on many factors:
......
......@@ -347,6 +347,7 @@ enum {
IDE = 0,
SCSI,
NIC,
ND_NIC,
MAX_PERF_CHN,
};
......@@ -391,6 +392,7 @@ static void init_vp_index(struct vmbus_channel *channel, const uuid_le *type_gui
struct vmbus_channel *primary = channel->primary_channel;
int next_node;
struct cpumask available_mask;
struct cpumask *alloced_mask;
for (i = IDE; i < MAX_PERF_CHN; i++) {
if (!memcmp(type_guid->b, hp_devs[i].guid,
......@@ -408,7 +410,6 @@ static void init_vp_index(struct vmbus_channel *channel, const uuid_le *type_gui
* channel, bind it to cpu 0.
*/
channel->numa_node = 0;
cpumask_set_cpu(0, &channel->alloced_cpus_in_node);
channel->target_cpu = 0;
channel->target_vp = hv_context.vp_index[0];
return;
......@@ -433,21 +434,38 @@ static void init_vp_index(struct vmbus_channel *channel, const uuid_le *type_gui
channel->numa_node = next_node;
primary = channel;
}
alloced_mask = &hv_context.hv_numa_map[primary->numa_node];
if (cpumask_weight(&primary->alloced_cpus_in_node) ==
if (cpumask_weight(alloced_mask) ==
cpumask_weight(cpumask_of_node(primary->numa_node))) {
/*
* We have cycled through all the CPUs in the node;
* reset the alloced map.
*/
cpumask_clear(&primary->alloced_cpus_in_node);
cpumask_clear(alloced_mask);
}
cpumask_xor(&available_mask, &primary->alloced_cpus_in_node,
cpumask_xor(&available_mask, alloced_mask,
cpumask_of_node(primary->numa_node));
cur_cpu = cpumask_next(-1, &available_mask);
cpumask_set_cpu(cur_cpu, &primary->alloced_cpus_in_node);
cur_cpu = -1;
while (true) {
cur_cpu = cpumask_next(cur_cpu, &available_mask);
if (cur_cpu >= nr_cpu_ids) {
cur_cpu = -1;
cpumask_copy(&available_mask,
cpumask_of_node(primary->numa_node));
continue;
}
if (!cpumask_test_cpu(cur_cpu,
&primary->alloced_cpus_in_node)) {
cpumask_set_cpu(cur_cpu,
&primary->alloced_cpus_in_node);
cpumask_set_cpu(cur_cpu, alloced_mask);
break;
}
}
channel->target_cpu = cur_cpu;
channel->target_vp = hv_context.vp_index[cur_cpu];
......@@ -469,6 +487,10 @@ void vmbus_initiate_unload(void)
{
struct vmbus_channel_message_header hdr;
/* Pre-Win2012R2 hosts don't support reconnect */
if (vmbus_proto_version < VERSION_WIN8_1)
return;
init_completion(&vmbus_connection.unload_event);
memset(&hdr, 0, sizeof(struct vmbus_channel_message_header));
hdr.msgtype = CHANNELMSG_UNLOAD;
......
......@@ -93,11 +93,14 @@ static int query_hypervisor_info(void)
*/
static u64 do_hypercall(u64 control, void *input, void *output)
{
#ifdef CONFIG_X86_64
u64 hv_status = 0;
u64 input_address = (input) ? virt_to_phys(input) : 0;
u64 output_address = (output) ? virt_to_phys(output) : 0;
void *hypercall_page = hv_context.hypercall_page;
#ifdef CONFIG_X86_64
u64 hv_status = 0;
if (!hypercall_page)
return (u64)ULLONG_MAX;
__asm__ __volatile__("mov %0, %%r8" : : "r" (output_address) : "r8");
__asm__ __volatile__("call *%3" : "=a" (hv_status) :
......@@ -112,13 +115,13 @@ static u64 do_hypercall(u64 control, void *input, void *output)
u32 control_lo = control & 0xFFFFFFFF;
u32 hv_status_hi = 1;
u32 hv_status_lo = 1;
u64 input_address = (input) ? virt_to_phys(input) : 0;
u32 input_address_hi = input_address >> 32;
u32 input_address_lo = input_address & 0xFFFFFFFF;
u64 output_address = (output) ? virt_to_phys(output) : 0;
u32 output_address_hi = output_address >> 32;
u32 output_address_lo = output_address & 0xFFFFFFFF;
void *hypercall_page = hv_context.hypercall_page;
if (!hypercall_page)
return (u64)ULLONG_MAX;
__asm__ __volatile__ ("call *%8" : "=d"(hv_status_hi),
"=a"(hv_status_lo) : "d" (control_hi),
......@@ -130,6 +133,56 @@ static u64 do_hypercall(u64 control, void *input, void *output)
#endif /* !x86_64 */
}
#ifdef CONFIG_X86_64
static cycle_t read_hv_clock_tsc(struct clocksource *arg)
{
cycle_t current_tick;
struct ms_hyperv_tsc_page *tsc_pg = hv_context.tsc_page;
if (tsc_pg->tsc_sequence != -1) {
/*
* Use the tsc page to compute the value.
*/
while (1) {
cycle_t tmp;
u32 sequence = tsc_pg->tsc_sequence;
u64 cur_tsc;
u64 scale = tsc_pg->tsc_scale;
s64 offset = tsc_pg->tsc_offset;
rdtscll(cur_tsc);
/* current_tick = ((cur_tsc *scale) >> 64) + offset */
asm("mulq %3"
: "=d" (current_tick), "=a" (tmp)
: "a" (cur_tsc), "r" (scale));
current_tick += offset;
if (tsc_pg->tsc_sequence == sequence)
return current_tick;
if (tsc_pg->tsc_sequence != -1)
continue;
/*
* Fallback using MSR method.
*/
break;
}
}
rdmsrl(HV_X64_MSR_TIME_REF_COUNT, current_tick);
return current_tick;
}
static struct clocksource hyperv_cs_tsc = {
.name = "hyperv_clocksource_tsc_page",
.rating = 425,
.read = read_hv_clock_tsc,
.mask = CLOCKSOURCE_MASK(64),
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
};
#endif
/*
* hv_init - Main initialization routine.
*
......@@ -139,7 +192,9 @@ int hv_init(void)
{
int max_leaf;
union hv_x64_msr_hypercall_contents hypercall_msr;
union hv_x64_msr_hypercall_contents tsc_msr;
void *virtaddr = NULL;
void *va_tsc = NULL;
memset(hv_context.synic_event_page, 0, sizeof(void *) * NR_CPUS);
memset(hv_context.synic_message_page, 0,
......@@ -183,6 +238,22 @@ int hv_init(void)
hv_context.hypercall_page = virtaddr;
#ifdef CONFIG_X86_64
if (ms_hyperv.features & HV_X64_MSR_REFERENCE_TSC_AVAILABLE) {
va_tsc = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL);
if (!va_tsc)
goto cleanup;
hv_context.tsc_page = va_tsc;
rdmsrl(HV_X64_MSR_REFERENCE_TSC, tsc_msr.as_uint64);
tsc_msr.enable = 1;
tsc_msr.guest_physical_address = vmalloc_to_pfn(va_tsc);
wrmsrl(HV_X64_MSR_REFERENCE_TSC, tsc_msr.as_uint64);
clocksource_register_hz(&hyperv_cs_tsc, NSEC_PER_SEC/100);
}
#endif
return 0;
cleanup:
......@@ -216,6 +287,21 @@ void hv_cleanup(void)
vfree(hv_context.hypercall_page);
hv_context.hypercall_page = NULL;
}
#ifdef CONFIG_X86_64
/*
* Cleanup the TSC page based CS.
*/
if (ms_hyperv.features & HV_X64_MSR_REFERENCE_TSC_AVAILABLE) {
clocksource_change_rating(&hyperv_cs_tsc, 10);
clocksource_unregister(&hyperv_cs_tsc);
hypercall_msr.as_uint64 = 0;
wrmsrl(HV_X64_MSR_REFERENCE_TSC, hypercall_msr.as_uint64);
vfree(hv_context.tsc_page);
hv_context.tsc_page = NULL;
}
#endif
}
/*
......@@ -271,7 +357,7 @@ static int hv_ce_set_next_event(unsigned long delta,
{
cycle_t current_tick;
WARN_ON(evt->mode != CLOCK_EVT_MODE_ONESHOT);
WARN_ON(!clockevent_state_oneshot(evt));
rdmsrl(HV_X64_MSR_TIME_REF_COUNT, current_tick);
current_tick += delta;
......@@ -279,31 +365,24 @@ static int hv_ce_set_next_event(unsigned long delta,
return 0;
}
static void hv_ce_setmode(enum clock_event_mode mode,
struct clock_event_device *evt)
static int hv_ce_shutdown(struct clock_event_device *evt)
{
wrmsrl(HV_X64_MSR_STIMER0_COUNT, 0);
wrmsrl(HV_X64_MSR_STIMER0_CONFIG, 0);
return 0;
}
static int hv_ce_set_oneshot(struct clock_event_device *evt)
{
union hv_timer_config timer_cfg;
switch (mode) {
case CLOCK_EVT_MODE_PERIODIC:
/* unsupported */
break;
case CLOCK_EVT_MODE_ONESHOT:
timer_cfg.enable = 1;
timer_cfg.auto_enable = 1;
timer_cfg.sintx = VMBUS_MESSAGE_SINT;
wrmsrl(HV_X64_MSR_STIMER0_CONFIG, timer_cfg.as_uint64);
break;
case CLOCK_EVT_MODE_UNUSED:
case CLOCK_EVT_MODE_SHUTDOWN:
wrmsrl(HV_X64_MSR_STIMER0_COUNT, 0);
wrmsrl(HV_X64_MSR_STIMER0_CONFIG, 0);
break;
case CLOCK_EVT_MODE_RESUME:
break;
}
timer_cfg.enable = 1;
timer_cfg.auto_enable = 1;
timer_cfg.sintx = VMBUS_MESSAGE_SINT;
wrmsrl(HV_X64_MSR_STIMER0_CONFIG, timer_cfg.as_uint64);
return 0;
}
static void hv_init_clockevent_device(struct clock_event_device *dev, int cpu)
......@@ -318,7 +397,8 @@ static void hv_init_clockevent_device(struct clock_event_device *dev, int cpu)
* references to the hv_vmbus module making it impossible to unload.
*/
dev->set_mode = hv_ce_setmode;
dev->set_state_shutdown = hv_ce_shutdown;
dev->set_state_oneshot = hv_ce_set_oneshot;
dev->set_next_event = hv_ce_set_next_event;
}
......@@ -329,6 +409,13 @@ int hv_synic_alloc(void)
size_t ced_size = sizeof(struct clock_event_device);
int cpu;
hv_context.hv_numa_map = kzalloc(sizeof(struct cpumask) * nr_node_ids,
GFP_ATOMIC);
if (hv_context.hv_numa_map == NULL) {
pr_err("Unable to allocate NUMA map\n");
goto err;
}
for_each_online_cpu(cpu) {
hv_context.event_dpc[cpu] = kmalloc(size, GFP_ATOMIC);
if (hv_context.event_dpc[cpu] == NULL) {
......@@ -342,6 +429,7 @@ int hv_synic_alloc(void)
pr_err("Unable to allocate clock event device\n");
goto err;
}
hv_init_clockevent_device(hv_context.clk_evt[cpu], cpu);
hv_context.synic_message_page[cpu] =
......@@ -390,6 +478,7 @@ void hv_synic_free(void)
{
int cpu;
kfree(hv_context.hv_numa_map);
for_each_online_cpu(cpu)
hv_synic_free_cpu(cpu);
}
......@@ -503,8 +592,7 @@ void hv_synic_cleanup(void *arg)
/* Turn off clockevent device */
if (ms_hyperv.features & HV_X64_MSR_SYNTIMER_AVAILABLE)
hv_ce_setmode(CLOCK_EVT_MODE_SHUTDOWN,
hv_context.clk_evt[cpu]);
hv_ce_shutdown(hv_context.clk_evt[cpu]);
rdmsrl(HV_X64_MSR_SINT0 + VMBUS_MESSAGE_SINT, shared_sint.as_uint64);
......@@ -530,6 +618,4 @@ void hv_synic_cleanup(void *arg)
rdmsrl(HV_X64_MSR_SCONTROL, sctrl.as_uint64);
sctrl.enable = 0;
wrmsrl(HV_X64_MSR_SCONTROL, sctrl.as_uint64);
hv_synic_free_cpu(cpu);
}
......@@ -62,11 +62,13 @@
enum {
DYNMEM_PROTOCOL_VERSION_1 = DYNMEM_MAKE_VERSION(0, 3),
DYNMEM_PROTOCOL_VERSION_2 = DYNMEM_MAKE_VERSION(1, 0),
DYNMEM_PROTOCOL_VERSION_3 = DYNMEM_MAKE_VERSION(2, 0),
DYNMEM_PROTOCOL_VERSION_WIN7 = DYNMEM_PROTOCOL_VERSION_1,
DYNMEM_PROTOCOL_VERSION_WIN8 = DYNMEM_PROTOCOL_VERSION_2,
DYNMEM_PROTOCOL_VERSION_WIN10 = DYNMEM_PROTOCOL_VERSION_3,
DYNMEM_PROTOCOL_VERSION_CURRENT = DYNMEM_PROTOCOL_VERSION_WIN8
DYNMEM_PROTOCOL_VERSION_CURRENT = DYNMEM_PROTOCOL_VERSION_WIN10
};
......@@ -1296,13 +1298,25 @@ static void version_resp(struct hv_dynmem_device *dm,
if (dm->next_version == 0)
goto version_error;
dm->next_version = 0;
memset(&version_req, 0, sizeof(struct dm_version_request));
version_req.hdr.type = DM_VERSION_REQUEST;
version_req.hdr.size = sizeof(struct dm_version_request);
version_req.hdr.trans_id = atomic_inc_return(&trans_id);
version_req.version.version = DYNMEM_PROTOCOL_VERSION_WIN7;
version_req.is_last_attempt = 1;
version_req.version.version = dm->next_version;
/*
* Set the next version to try in case current version fails.
* Win7 protocol ought to be the last one to try.
*/
switch (version_req.version.version) {
case DYNMEM_PROTOCOL_VERSION_WIN8:
dm->next_version = DYNMEM_PROTOCOL_VERSION_WIN7;
version_req.is_last_attempt = 0;
break;
default:
dm->next_version = 0;
version_req.is_last_attempt = 1;
}
ret = vmbus_sendpacket(dm->dev->channel, &version_req,
sizeof(struct dm_version_request),
......@@ -1442,7 +1456,7 @@ static int balloon_probe(struct hv_device *dev,
dm_device.dev = dev;
dm_device.state = DM_INITIALIZING;
dm_device.next_version = DYNMEM_PROTOCOL_VERSION_WIN7;
dm_device.next_version = DYNMEM_PROTOCOL_VERSION_WIN8;
init_completion(&dm_device.host_event);
init_completion(&dm_device.config_event);
INIT_LIST_HEAD(&dm_device.ha_region_list);
......@@ -1474,7 +1488,7 @@ static int balloon_probe(struct hv_device *dev,
version_req.hdr.type = DM_VERSION_REQUEST;
version_req.hdr.size = sizeof(struct dm_version_request);
version_req.hdr.trans_id = atomic_inc_return(&trans_id);
version_req.version.version = DYNMEM_PROTOCOL_VERSION_WIN8;
version_req.version.version = DYNMEM_PROTOCOL_VERSION_WIN10;
version_req.is_last_attempt = 0;
ret = vmbus_sendpacket(dev->channel, &version_req,
......
......@@ -116,7 +116,7 @@ static int fcopy_handle_handshake(u32 version)
static void fcopy_send_data(struct work_struct *dummy)
{
struct hv_start_fcopy smsg_out;
struct hv_start_fcopy *smsg_out = NULL;
int operation = fcopy_transaction.fcopy_msg->operation;
struct hv_start_fcopy *smsg_in;
void *out_src;
......@@ -136,21 +136,24 @@ static void fcopy_send_data(struct work_struct *dummy)
switch (operation) {
case START_FILE_COPY:
out_len = sizeof(struct hv_start_fcopy);
memset(&smsg_out, 0, out_len);
smsg_out.hdr.operation = operation;
smsg_out = kzalloc(sizeof(*smsg_out), GFP_KERNEL);
if (!smsg_out)
return;
smsg_out->hdr.operation = operation;
smsg_in = (struct hv_start_fcopy *)fcopy_transaction.fcopy_msg;
utf16s_to_utf8s((wchar_t *)smsg_in->file_name, W_MAX_PATH,
UTF16_LITTLE_ENDIAN,
(__u8 *)&smsg_out.file_name, W_MAX_PATH - 1);
(__u8 *)&smsg_out->file_name, W_MAX_PATH - 1);
utf16s_to_utf8s((wchar_t *)smsg_in->path_name, W_MAX_PATH,
UTF16_LITTLE_ENDIAN,
(__u8 *)&smsg_out.path_name, W_MAX_PATH - 1);
(__u8 *)&smsg_out->path_name, W_MAX_PATH - 1);
smsg_out.copy_flags = smsg_in->copy_flags;
smsg_out.file_size = smsg_in->file_size;
out_src = &smsg_out;
smsg_out->copy_flags = smsg_in->copy_flags;
smsg_out->file_size = smsg_in->file_size;
out_src = smsg_out;
break;
default:
......@@ -168,6 +171,8 @@ static void fcopy_send_data(struct work_struct *dummy)
fcopy_transaction.state = HVUTIL_READY;
}
}
kfree(smsg_out);
return;
}
......
......@@ -353,6 +353,9 @@ kvp_send_key(struct work_struct *dummy)
return;
message = kzalloc(sizeof(*message), GFP_KERNEL);
if (!message)
return;
message->kvp_hdr.operation = operation;
message->kvp_hdr.pool = pool;
in_msg = kvp_transaction.kvp_msg;
......
......@@ -186,7 +186,7 @@ int hvutil_transport_send(struct hvutil_transport *hvt, void *msg, int len)
return -EINVAL;
} else if (hvt->mode == HVUTIL_TRANSPORT_NETLINK) {
cn_msg = kzalloc(sizeof(*cn_msg) + len, GFP_ATOMIC);
if (!msg)
if (!cn_msg)
return -ENOMEM;
cn_msg->id.idx = hvt->cn_id.idx;
cn_msg->id.val = hvt->cn_id.val;
......
......@@ -141,7 +141,7 @@ struct hv_port_info {
struct {
u32 target_sint;
u32 target_vp;
u16 base_flag_bumber;
u16 base_flag_number;
u16 flag_count;
u32 rsvdz;
} event_port_info;
......@@ -517,6 +517,7 @@ struct hv_context {
u64 guestid;
void *hypercall_page;
void *tsc_page;
bool synic_initialized;
......@@ -551,10 +552,23 @@ struct hv_context {
* Support PV clockevent device.
*/
struct clock_event_device *clk_evt[NR_CPUS];
/*
* To manage allocations in a NUMA node.
* Array indexed by numa node ID.
*/
struct cpumask *hv_numa_map;
};
extern struct hv_context hv_context;
struct ms_hyperv_tsc_page {
volatile u32 tsc_sequence;
u32 reserved1;
volatile u64 tsc_scale;
volatile s64 tsc_offset;
u64 reserved2[509];
};
struct hv_ring_buffer_debug_info {
u32 current_interrupt_mask;
u32 current_read_index;
......
......@@ -103,10 +103,9 @@ static bool hv_need_to_signal(u32 old_write, struct hv_ring_buffer_info *rbi)
* there is room for the producer to send the pending packet.
*/
static bool hv_need_to_signal_on_read(u32 old_rd,
struct hv_ring_buffer_info *rbi)
static bool hv_need_to_signal_on_read(u32 prev_write_sz,
struct hv_ring_buffer_info *rbi)
{
u32 prev_write_sz;
u32 cur_write_sz;
u32 r_size;
u32 write_loc = rbi->ring_buffer->write_index;
......@@ -123,10 +122,6 @@ static bool hv_need_to_signal_on_read(u32 old_rd,
cur_write_sz = write_loc >= read_loc ? r_size - (write_loc - read_loc) :
read_loc - write_loc;
prev_write_sz = write_loc >= old_rd ? r_size - (write_loc - old_rd) :
old_rd - write_loc;
if ((prev_write_sz < pending_sz) && (cur_write_sz >= pending_sz))
return true;
......@@ -517,7 +512,6 @@ int hv_ringbuffer_read(struct hv_ring_buffer_info *inring_info, void *buffer,
u32 next_read_location = 0;
u64 prev_indices = 0;
unsigned long flags;
u32 old_read;
if (buflen <= 0)
return -EINVAL;
......@@ -528,8 +522,6 @@ int hv_ringbuffer_read(struct hv_ring_buffer_info *inring_info, void *buffer,
&bytes_avail_toread,
&bytes_avail_towrite);
old_read = bytes_avail_toread;
/* Make sure there is something to read */
if (bytes_avail_toread < buflen) {
spin_unlock_irqrestore(&inring_info->ring_lock, flags);
......@@ -560,7 +552,7 @@ int hv_ringbuffer_read(struct hv_ring_buffer_info *inring_info, void *buffer,
spin_unlock_irqrestore(&inring_info->ring_lock, flags);
*signal = hv_need_to_signal_on_read(old_read, inring_info);
*signal = hv_need_to_signal_on_read(bytes_avail_towrite, inring_info);
return 0;
}
......@@ -39,6 +39,8 @@
#include <asm/mshyperv.h>
#include <linux/notifier.h>
#include <linux/ptrace.h>
#include <linux/screen_info.h>
#include <linux/kdebug.h>
#include "hyperv_vmbus.h"
static struct acpi_device *hv_acpi_dev;
......@@ -48,12 +50,18 @@ static struct completion probe_event;
static int irq;
static int hyperv_panic_event(struct notifier_block *nb,
unsigned long event, void *ptr)
static void hyperv_report_panic(struct pt_regs *regs)
{
struct pt_regs *regs;
static bool panic_reported;
regs = current_pt_regs();
/*
* We prefer to report panic on 'die' chain as we have proper
* registers to report, but if we miss it (e.g. on BUG()) we need
* to report it on 'panic'.
*/
if (panic_reported)
return;
panic_reported = true;
wrmsrl(HV_X64_MSR_CRASH_P0, regs->ip);
wrmsrl(HV_X64_MSR_CRASH_P1, regs->ax);
......@@ -65,18 +73,37 @@ static int hyperv_panic_event(struct notifier_block *nb,
* Let Hyper-V know there is crash data available
*/
wrmsrl(HV_X64_MSR_CRASH_CTL, HV_CRASH_CTL_CRASH_NOTIFY);
}
static int hyperv_panic_event(struct notifier_block *nb, unsigned long val,
void *args)
{
struct pt_regs *regs;
regs = current_pt_regs();
hyperv_report_panic(regs);
return NOTIFY_DONE;
}
static int hyperv_die_event(struct notifier_block *nb, unsigned long val,
void *args)
{
struct die_args *die = (struct die_args *)args;
struct pt_regs *regs = die->regs;
hyperv_report_panic(regs);
return NOTIFY_DONE;
}
static struct notifier_block hyperv_die_block = {
.notifier_call = hyperv_die_event,
};
static struct notifier_block hyperv_panic_block = {
.notifier_call = hyperv_panic_event,
};
struct resource hyperv_mmio = {
.name = "hyperv mmio",
.flags = IORESOURCE_MEM,
};
EXPORT_SYMBOL_GPL(hyperv_mmio);
struct resource *hyperv_mmio;
static int vmbus_exists(void)
{
......@@ -414,6 +441,43 @@ static ssize_t in_write_bytes_avail_show(struct device *dev,
}
static DEVICE_ATTR_RO(in_write_bytes_avail);
static ssize_t channel_vp_mapping_show(struct device *dev,
struct device_attribute *dev_attr,
char *buf)
{
struct hv_device *hv_dev = device_to_hv_device(dev);
struct vmbus_channel *channel = hv_dev->channel, *cur_sc;
unsigned long flags;
int buf_size = PAGE_SIZE, n_written, tot_written;
struct list_head *cur;
if (!channel)
return -ENODEV;
tot_written = snprintf(buf, buf_size, "%u:%u\n",
channel->offermsg.child_relid, channel->target_cpu);
spin_lock_irqsave(&channel->lock, flags);
list_for_each(cur, &channel->sc_list) {
if (tot_written >= buf_size - 1)
break;
cur_sc = list_entry(cur, struct vmbus_channel, sc_list);
n_written = scnprintf(buf + tot_written,
buf_size - tot_written,
"%u:%u\n",
cur_sc->offermsg.child_relid,
cur_sc->target_cpu);
tot_written += n_written;
}
spin_unlock_irqrestore(&channel->lock, flags);
return tot_written;
}
static DEVICE_ATTR_RO(channel_vp_mapping);
/* Set up per device attributes in /sys/bus/vmbus/devices/<bus device> */
static struct attribute *vmbus_attrs[] = {
&dev_attr_id.attr,
......@@ -438,6 +502,7 @@ static struct attribute *vmbus_attrs[] = {
&dev_attr_in_write_index.attr,
&dev_attr_in_read_bytes_avail.attr,
&dev_attr_in_write_bytes_avail.attr,
&dev_attr_channel_vp_mapping.attr,
NULL,
};
ATTRIBUTE_GROUPS(vmbus);
......@@ -763,38 +828,6 @@ static void vmbus_isr(void)
}
}
#ifdef CONFIG_HOTPLUG_CPU
static int hyperv_cpu_disable(void)
{
return -ENOSYS;
}
static void hv_cpu_hotplug_quirk(bool vmbus_loaded)
{
static void *previous_cpu_disable;
/*
* Offlining a CPU when running on newer hypervisors (WS2012R2, Win8,
* ...) is not supported at this moment as channel interrupts are
* distributed across all of them.
*/
if ((vmbus_proto_version == VERSION_WS2008) ||
(vmbus_proto_version == VERSION_WIN7))
return;
if (vmbus_loaded) {
previous_cpu_disable = smp_ops.cpu_disable;
smp_ops.cpu_disable = hyperv_cpu_disable;
pr_notice("CPU offlining is not supported by hypervisor\n");
} else if (previous_cpu_disable)
smp_ops.cpu_disable = previous_cpu_disable;
}
#else
static void hv_cpu_hotplug_quirk(bool vmbus_loaded)
{
}
#endif
/*
* vmbus_bus_init -Main vmbus driver initialization routine.
......@@ -836,12 +869,14 @@ static int vmbus_bus_init(int irq)
if (ret)
goto err_alloc;
hv_cpu_hotplug_quirk(true);
if (vmbus_proto_version > VERSION_WIN7)
cpu_hotplug_disable();
/*
* Only register if the crash MSRs are available
*/
if (ms_hyperv.features & HV_FEATURE_GUEST_CRASH_MSR_AVAILABLE) {
if (ms_hyperv.misc_features & HV_FEATURE_GUEST_CRASH_MSR_AVAILABLE) {
register_die_notifier(&hyperv_die_block);
atomic_notifier_chain_register(&panic_notifier_list,
&hyperv_panic_block);
}
......@@ -863,8 +898,8 @@ static int vmbus_bus_init(int irq)
}
/**
* __vmbus_child_driver_register - Register a vmbus's driver
* @drv: Pointer to driver structure you want to register
* __vmbus_child_driver_register() - Register a vmbus's driver
* @hv_driver: Pointer to driver structure you want to register
* @owner: owner module of the drv
* @mod_name: module name string
*
......@@ -896,7 +931,8 @@ EXPORT_SYMBOL_GPL(__vmbus_driver_register);
/**
* vmbus_driver_unregister() - Unregister a vmbus's driver
* @drv: Pointer to driver structure you want to un-register
* @hv_driver: Pointer to driver structure you want to
* un-register
*
* Un-register the given driver that was previous registered with a call to
* vmbus_driver_register()
......@@ -982,30 +1018,184 @@ void vmbus_device_unregister(struct hv_device *device_obj)
/*
* VMBUS is an acpi enumerated device. Get the the information we
* VMBUS is an acpi enumerated device. Get the information we
* need from DSDT.
*/
#define VTPM_BASE_ADDRESS 0xfed40000
static acpi_status vmbus_walk_resources(struct acpi_resource *res, void *ctx)
{
resource_size_t start = 0;
resource_size_t end = 0;
struct resource *new_res;
struct resource **old_res = &hyperv_mmio;
struct resource **prev_res = NULL;
switch (res->type) {
case ACPI_RESOURCE_TYPE_IRQ:
irq = res->data.irq.interrupts[0];
return AE_OK;
/*
* "Address" descriptors are for bus windows. Ignore
* "memory" descriptors, which are for registers on
* devices.
*/
case ACPI_RESOURCE_TYPE_ADDRESS32:
start = res->data.address32.address.minimum;
end = res->data.address32.address.maximum;
break;
case ACPI_RESOURCE_TYPE_ADDRESS64:
hyperv_mmio.start = res->data.address64.address.minimum;
hyperv_mmio.end = res->data.address64.address.maximum;
start = res->data.address64.address.minimum;
end = res->data.address64.address.maximum;
break;
default:
/* Unused resource type */
return AE_OK;
}
/*
* Ignore ranges that are below 1MB, as they're not
* necessary or useful here.
*/
if (end < 0x100000)
return AE_OK;
new_res = kzalloc(sizeof(*new_res), GFP_ATOMIC);
if (!new_res)
return AE_NO_MEMORY;
/* If this range overlaps the virtual TPM, truncate it. */
if (end > VTPM_BASE_ADDRESS && start < VTPM_BASE_ADDRESS)
end = VTPM_BASE_ADDRESS;
new_res->name = "hyperv mmio";
new_res->flags = IORESOURCE_MEM;
new_res->start = start;
new_res->end = end;
do {
if (!*old_res) {
*old_res = new_res;
break;
}
if ((*old_res)->end < new_res->start) {
new_res->sibling = *old_res;
if (prev_res)
(*prev_res)->sibling = new_res;
*old_res = new_res;
break;
}
prev_res = old_res;
old_res = &(*old_res)->sibling;
} while (1);
return AE_OK;
}
static int vmbus_acpi_remove(struct acpi_device *device)
{
struct resource *cur_res;
struct resource *next_res;
if (hyperv_mmio) {
for (cur_res = hyperv_mmio; cur_res; cur_res = next_res) {
next_res = cur_res->sibling;
kfree(cur_res);
}
}
return 0;
}
/**
* vmbus_allocate_mmio() - Pick a memory-mapped I/O range.
* @new: If successful, supplied a pointer to the
* allocated MMIO space.
* @device_obj: Identifies the caller
* @min: Minimum guest physical address of the
* allocation
* @max: Maximum guest physical address
* @size: Size of the range to be allocated
* @align: Alignment of the range to be allocated
* @fb_overlap_ok: Whether this allocation can be allowed
* to overlap the video frame buffer.
*
* This function walks the resources granted to VMBus by the
* _CRS object in the ACPI namespace underneath the parent
* "bridge" whether that's a root PCI bus in the Generation 1
* case or a Module Device in the Generation 2 case. It then
* attempts to allocate from the global MMIO pool in a way that
* matches the constraints supplied in these parameters and by
* that _CRS.
*
* Return: 0 on success, -errno on failure
*/
int vmbus_allocate_mmio(struct resource **new, struct hv_device *device_obj,
resource_size_t min, resource_size_t max,
resource_size_t size, resource_size_t align,
bool fb_overlap_ok)
{
struct resource *iter;
resource_size_t range_min, range_max, start, local_min, local_max;
const char *dev_n = dev_name(&device_obj->device);
u32 fb_end = screen_info.lfb_base + (screen_info.lfb_size << 1);
int i;
for (iter = hyperv_mmio; iter; iter = iter->sibling) {
if ((iter->start >= max) || (iter->end <= min))
continue;
range_min = iter->start;
range_max = iter->end;
/* If this range overlaps the frame buffer, split it into
two tries. */
for (i = 0; i < 2; i++) {
local_min = range_min;
local_max = range_max;
if (fb_overlap_ok || (range_min >= fb_end) ||
(range_max <= screen_info.lfb_base)) {
i++;
} else {
if ((range_min <= screen_info.lfb_base) &&
(range_max >= screen_info.lfb_base)) {
/*
* The frame buffer is in this window,
* so trim this into the part that
* preceeds the frame buffer.
*/
local_max = screen_info.lfb_base - 1;
range_min = fb_end;
} else {
range_min = fb_end;
continue;
}
}
start = (local_min + align - 1) & ~(align - 1);
for (; start + size - 1 <= local_max; start += align) {
*new = request_mem_region_exclusive(start, size,
dev_n);
if (*new)
return 0;
}
}
}
return -ENXIO;
}
EXPORT_SYMBOL_GPL(vmbus_allocate_mmio);
static int vmbus_acpi_add(struct acpi_device *device)
{
acpi_status result;
int ret_val = -ENODEV;
struct acpi_device *ancestor;
hv_acpi_dev = device;
......@@ -1015,35 +1205,27 @@ static int vmbus_acpi_add(struct acpi_device *device)
if (ACPI_FAILURE(result))
goto acpi_walk_err;
/*
* The parent of the vmbus acpi device (Gen2 firmware) is the VMOD that
* has the mmio ranges. Get that.
* Some ancestor of the vmbus acpi device (Gen1 or Gen2
* firmware) is the VMOD that has the mmio ranges. Get that.
*/
if (device->parent) {
result = acpi_walk_resources(device->parent->handle,
METHOD_NAME__CRS,
vmbus_walk_resources, NULL);
for (ancestor = device->parent; ancestor; ancestor = ancestor->parent) {
result = acpi_walk_resources(ancestor->handle, METHOD_NAME__CRS,
vmbus_walk_resources, NULL);
if (ACPI_FAILURE(result))
goto acpi_walk_err;
if (hyperv_mmio.start && hyperv_mmio.end)
request_resource(&iomem_resource, &hyperv_mmio);
continue;
if (hyperv_mmio)
break;
}
ret_val = 0;
acpi_walk_err:
complete(&probe_event);
if (ret_val)
vmbus_acpi_remove(device);
return ret_val;
}
static int vmbus_acpi_remove(struct acpi_device *device)
{
int ret = 0;
if (hyperv_mmio.start && hyperv_mmio.end)
ret = release_resource(&hyperv_mmio);
return ret;
}
static const struct acpi_device_id vmbus_acpi_device_ids[] = {
{"VMBUS", 0},
{"VMBus", 0},
......@@ -1060,6 +1242,29 @@ static struct acpi_driver vmbus_acpi_driver = {
},
};
static void hv_kexec_handler(void)
{
int cpu;
hv_synic_clockevents_cleanup();
vmbus_initiate_unload();
for_each_online_cpu(cpu)
smp_call_function_single(cpu, hv_synic_cleanup, NULL, 1);
hv_cleanup();
};
static void hv_crash_handler(struct pt_regs *regs)
{
vmbus_initiate_unload();
/*
* In crash handler we can't schedule synic cleanup for all CPUs,
* doing the cleanup for current CPU only. This should be sufficient
* for kdump.
*/
hv_synic_cleanup(NULL);
hv_cleanup();
};
static int __init hv_acpi_init(void)
{
int ret, t;
......@@ -1092,6 +1297,9 @@ static int __init hv_acpi_init(void)
if (ret)
goto cleanup;
hv_setup_kexec_handler(hv_kexec_handler);
hv_setup_crash_handler(hv_crash_handler);
return 0;
cleanup:
......@@ -1104,13 +1312,16 @@ static void __exit vmbus_exit(void)
{
int cpu;
hv_remove_kexec_handler();
hv_remove_crash_handler();
vmbus_connection.conn_state = DISCONNECTED;
hv_synic_clockevents_cleanup();
vmbus_disconnect();
hv_remove_vmbus_irq();
tasklet_kill(&msg_dpc);
vmbus_free_channels();
if (ms_hyperv.features & HV_FEATURE_GUEST_CRASH_MSR_AVAILABLE) {
if (ms_hyperv.misc_features & HV_FEATURE_GUEST_CRASH_MSR_AVAILABLE) {
unregister_die_notifier(&hyperv_die_block);
atomic_notifier_chain_unregister(&panic_notifier_list,
&hyperv_panic_block);
}
......@@ -1120,8 +1331,10 @@ static void __exit vmbus_exit(void)
tasklet_kill(hv_context.event_dpc[cpu]);
smp_call_function_single(cpu, hv_synic_cleanup, NULL, 1);
}
hv_synic_free();
acpi_bus_unregister_driver(&vmbus_acpi_driver);
hv_cpu_hotplug_quirk(false);
if (vmbus_proto_version > VERSION_WIN7)
cpu_hotplug_enable();
}
......
......@@ -183,7 +183,9 @@
* @seq_13_event: event causing the transition from 1 to 3.
* @seq_curr_state: current value of the sequencer register.
* @ctxid_idx: index for the context ID registers.
* @ctxid_val: value for the context ID to trigger on.
* @ctxid_pid: value for the context ID to trigger on.
* @ctxid_vpid: Virtual PID seen by users if PID namespace is enabled, otherwise
* the same value of ctxid_pid.
* @ctxid_mask: mask applicable to all the context IDs.
* @sync_freq: Synchronisation frequency.
* @timestamp_event: Defines an event that requests the insertion
......@@ -235,7 +237,8 @@ struct etm_drvdata {
u32 seq_13_event;
u32 seq_curr_state;
u8 ctxid_idx;
u32 ctxid_val[ETM_MAX_CTXID_CMP];
u32 ctxid_pid[ETM_MAX_CTXID_CMP];
u32 ctxid_vpid[ETM_MAX_CTXID_CMP];
u32 ctxid_mask;
u32 sync_freq;
u32 timestamp_event;
......
......@@ -237,8 +237,11 @@ static void etm_set_default(struct etm_drvdata *drvdata)
drvdata->seq_curr_state = 0x0;
drvdata->ctxid_idx = 0x0;
for (i = 0; i < drvdata->nr_ctxid_cmp; i++)
drvdata->ctxid_val[i] = 0x0;
for (i = 0; i < drvdata->nr_ctxid_cmp; i++) {
drvdata->ctxid_pid[i] = 0x0;
drvdata->ctxid_vpid[i] = 0x0;
}
drvdata->ctxid_mask = 0x0;
}
......@@ -289,7 +292,7 @@ static void etm_enable_hw(void *info)
for (i = 0; i < drvdata->nr_ext_out; i++)
etm_writel(drvdata, ETM_DEFAULT_EVENT_VAL, ETMEXTOUTEVRn(i));
for (i = 0; i < drvdata->nr_ctxid_cmp; i++)
etm_writel(drvdata, drvdata->ctxid_val[i], ETMCIDCVRn(i));
etm_writel(drvdata, drvdata->ctxid_pid[i], ETMCIDCVRn(i));
etm_writel(drvdata, drvdata->ctxid_mask, ETMCIDCMR);
etm_writel(drvdata, drvdata->sync_freq, ETMSYNCFR);
/* No external input selected */
......@@ -1386,38 +1389,41 @@ static ssize_t ctxid_idx_store(struct device *dev,
}
static DEVICE_ATTR_RW(ctxid_idx);
static ssize_t ctxid_val_show(struct device *dev,
static ssize_t ctxid_pid_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
unsigned long val;
struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
spin_lock(&drvdata->spinlock);
val = drvdata->ctxid_val[drvdata->ctxid_idx];
val = drvdata->ctxid_vpid[drvdata->ctxid_idx];
spin_unlock(&drvdata->spinlock);
return sprintf(buf, "%#lx\n", val);
}
static ssize_t ctxid_val_store(struct device *dev,
static ssize_t ctxid_pid_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t size)
{
int ret;
unsigned long val;
unsigned long vpid, pid;
struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
ret = kstrtoul(buf, 16, &val);
ret = kstrtoul(buf, 16, &vpid);
if (ret)
return ret;
pid = coresight_vpid_to_pid(vpid);
spin_lock(&drvdata->spinlock);
drvdata->ctxid_val[drvdata->ctxid_idx] = val;
drvdata->ctxid_pid[drvdata->ctxid_idx] = pid;
drvdata->ctxid_vpid[drvdata->ctxid_idx] = vpid;
spin_unlock(&drvdata->spinlock);
return size;
}
static DEVICE_ATTR_RW(ctxid_val);
static DEVICE_ATTR_RW(ctxid_pid);
static ssize_t ctxid_mask_show(struct device *dev,
struct device_attribute *attr, char *buf)
......@@ -1609,7 +1615,7 @@ static struct attribute *coresight_etm_attrs[] = {
&dev_attr_seq_13_event.attr,
&dev_attr_seq_curr_state.attr,
&dev_attr_ctxid_idx.attr,
&dev_attr_ctxid_val.attr,
&dev_attr_ctxid_pid.attr,
&dev_attr_ctxid_mask.attr,
&dev_attr_sync_freq.attr,
&dev_attr_timestamp_event.attr,
......@@ -1912,6 +1918,11 @@ static struct amba_id etm_ids[] = {
.mask = 0x0003ffff,
.data = "PTM 1.1",
},
{ /* PTM 1.1 Qualcomm */
.id = 0x0003006f,
.mask = 0x0003ffff,
.data = "PTM 1.1",
},
{ 0, 0},
};
......
......@@ -155,7 +155,7 @@ static void etm4_enable_hw(void *info)
drvdata->base + TRCACATRn(i));
}
for (i = 0; i < drvdata->numcidc; i++)
writeq_relaxed(drvdata->ctxid_val[i],
writeq_relaxed(drvdata->ctxid_pid[i],
drvdata->base + TRCCIDCVRn(i));
writel_relaxed(drvdata->ctxid_mask0, drvdata->base + TRCCIDCCTLR0);
writel_relaxed(drvdata->ctxid_mask1, drvdata->base + TRCCIDCCTLR1);
......@@ -506,8 +506,11 @@ static ssize_t reset_store(struct device *dev,
}
drvdata->ctxid_idx = 0x0;
for (i = 0; i < drvdata->numcidc; i++)
drvdata->ctxid_val[i] = 0x0;
for (i = 0; i < drvdata->numcidc; i++) {
drvdata->ctxid_pid[i] = 0x0;
drvdata->ctxid_vpid[i] = 0x0;
}
drvdata->ctxid_mask0 = 0x0;
drvdata->ctxid_mask1 = 0x0;
......@@ -1815,7 +1818,7 @@ static ssize_t ctxid_idx_store(struct device *dev,
}
static DEVICE_ATTR_RW(ctxid_idx);
static ssize_t ctxid_val_show(struct device *dev,
static ssize_t ctxid_pid_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
......@@ -1825,17 +1828,17 @@ static ssize_t ctxid_val_show(struct device *dev,
spin_lock(&drvdata->spinlock);
idx = drvdata->ctxid_idx;
val = (unsigned long)drvdata->ctxid_val[idx];
val = (unsigned long)drvdata->ctxid_vpid[idx];
spin_unlock(&drvdata->spinlock);
return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
}
static ssize_t ctxid_val_store(struct device *dev,
static ssize_t ctxid_pid_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t size)
{
u8 idx;
unsigned long val;
unsigned long vpid, pid;
struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
/*
......@@ -1845,16 +1848,19 @@ static ssize_t ctxid_val_store(struct device *dev,
*/
if (!drvdata->ctxid_size || !drvdata->numcidc)
return -EINVAL;
if (kstrtoul(buf, 16, &val))
if (kstrtoul(buf, 16, &vpid))
return -EINVAL;
pid = coresight_vpid_to_pid(vpid);
spin_lock(&drvdata->spinlock);
idx = drvdata->ctxid_idx;
drvdata->ctxid_val[idx] = (u64)val;
drvdata->ctxid_pid[idx] = (u64)pid;
drvdata->ctxid_vpid[idx] = (u64)vpid;
spin_unlock(&drvdata->spinlock);
return size;
}
static DEVICE_ATTR_RW(ctxid_val);
static DEVICE_ATTR_RW(ctxid_pid);
static ssize_t ctxid_masks_show(struct device *dev,
struct device_attribute *attr,
......@@ -1949,7 +1955,7 @@ static ssize_t ctxid_masks_store(struct device *dev,
*/
for (j = 0; j < 8; j++) {
if (maskbyte & 1)
drvdata->ctxid_val[i] &= ~(0xFF << (j * 8));
drvdata->ctxid_pid[i] &= ~(0xFF << (j * 8));
maskbyte >>= 1;
}
/* Select the next ctxid comparator mask value */
......@@ -2193,7 +2199,7 @@ static struct attribute *coresight_etmv4_attrs[] = {
&dev_attr_res_idx.attr,
&dev_attr_res_ctrl.attr,
&dev_attr_ctxid_idx.attr,
&dev_attr_ctxid_val.attr,
&dev_attr_ctxid_pid.attr,
&dev_attr_ctxid_masks.attr,
&dev_attr_vmid_idx.attr,
&dev_attr_vmid_val.attr,
......@@ -2513,8 +2519,11 @@ static void etm4_init_default_data(struct etmv4_drvdata *drvdata)
drvdata->addr_type[1] = ETM_ADDR_TYPE_RANGE;
}
for (i = 0; i < drvdata->numcidc; i++)
drvdata->ctxid_val[i] = 0x0;
for (i = 0; i < drvdata->numcidc; i++) {
drvdata->ctxid_pid[i] = 0x0;
drvdata->ctxid_vpid[i] = 0x0;
}
drvdata->ctxid_mask0 = 0x0;
drvdata->ctxid_mask1 = 0x0;
......
......@@ -265,7 +265,9 @@
* @addr_type: Current status of the comparator register.
* @ctxid_idx: Context ID index selector.
* @ctxid_size: Size of the context ID field to consider.
* @ctxid_val: Value of the context ID comparator.
* @ctxid_pid: Value of the context ID comparator.
* @ctxid_vpid: Virtual PID seen by users if PID namespace is enabled, otherwise
* the same value of ctxid_pid.
* @ctxid_mask0:Context ID comparator mask for comparator 0-3.
* @ctxid_mask1:Context ID comparator mask for comparator 4-7.
* @vmid_idx: VM ID index selector.
......@@ -352,7 +354,8 @@ struct etmv4_drvdata {
u8 addr_type[ETM_MAX_SINGLE_ADDR_CMP];
u8 ctxid_idx;
u8 ctxid_size;
u64 ctxid_val[ETMv4_MAX_CTXID_CMP];
u64 ctxid_pid[ETMv4_MAX_CTXID_CMP];
u64 ctxid_vpid[ETMv4_MAX_CTXID_CMP];
u32 ctxid_mask0;
u32 ctxid_mask1;
u8 vmid_idx;
......
......@@ -12,7 +12,6 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/io.h>
......@@ -184,17 +183,7 @@ static struct platform_driver replicator_driver = {
},
};
static int __init replicator_init(void)
{
return platform_driver_register(&replicator_driver);
}
module_init(replicator_init);
static void __exit replicator_exit(void)
{
platform_driver_unregister(&replicator_driver);
}
module_exit(replicator_exit);
builtin_platform_driver(replicator_driver);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("CoreSight Replicator driver");
......@@ -1919,9 +1919,7 @@ int __init dm_interface_init(void)
void dm_interface_exit(void)
{
if (misc_deregister(&_dm_misc) < 0)
DMERR("misc_deregister failed for control device");
misc_deregister(&_dm_misc);
dm_hash_exit();
}
......
......@@ -271,6 +271,16 @@ config HP_ILO
To compile this driver as a module, choose M here: the
module will be called hpilo.
config QCOM_COINCELL
tristate "Qualcomm coincell charger support"
depends on MFD_SPMI_PMIC || COMPILE_TEST
help
This driver supports the coincell block found inside of
Qualcomm PMICs. The coincell charger provides a means to
charge a coincell battery or backup capacitor which is used
to maintain PMIC register and RTC state in the absence of
external power.
config SGI_GRU
tristate "SGI GRU driver"
depends on X86_UV && SMP
......
......@@ -18,6 +18,7 @@ obj-$(CONFIG_LKDTM) += lkdtm.o
obj-$(CONFIG_TIFM_CORE) += tifm_core.o
obj-$(CONFIG_TIFM_7XX1) += tifm_7xx1.o
obj-$(CONFIG_PHANTOM) += phantom.o
obj-$(CONFIG_QCOM_COINCELL) += qcom-coincell.o
obj-$(CONFIG_SENSORS_BH1780) += bh1780gli.o
obj-$(CONFIG_SENSORS_BH1770) += bh1770glc.o
obj-$(CONFIG_SENSORS_APDS990X) += apds990x.o
......
......@@ -106,7 +106,6 @@ MODULE_DEVICE_TABLE(i2c, ad_dpot_id);
static struct i2c_driver ad_dpot_i2c_driver = {
.driver = {
.name = "ad_dpot",
.owner = THIS_MODULE,
},
.probe = ad_dpot_i2c_probe,
.remove = ad_dpot_i2c_remove,
......
......@@ -1275,7 +1275,6 @@ static const struct dev_pm_ops apds990x_pm_ops = {
static struct i2c_driver apds990x_driver = {
.driver = {
.name = "apds990x",
.owner = THIS_MODULE,
.pm = &apds990x_pm_ops,
},
.probe = apds990x_probe,
......
......@@ -1396,7 +1396,6 @@ static const struct dev_pm_ops bh1770_pm_ops = {
static struct i2c_driver bh1770_driver = {
.driver = {
.name = "bh1770glc",
.owner = THIS_MODULE,
.pm = &bh1770_pm_ops,
},
.probe = bh1770_probe,
......
......@@ -66,7 +66,6 @@ MODULE_DEVICE_TABLE(i2c, bmp085_id);
static struct i2c_driver bmp085_i2c_driver = {
.driver = {
.owner = THIS_MODULE,
.name = BMP085_NAME,
},
.id_table = bmp085_id,
......
......@@ -443,12 +443,7 @@ static ssize_t afu_read_config(struct file *filp, struct kobject *kobj,
struct afu_config_record *cr = to_cr(kobj);
struct cxl_afu *afu = to_cxl_afu(container_of(kobj->parent, struct device, kobj));
u64 i, j, val, size = afu->crs_len;
if (off > size)
return 0;
if (off + count > size)
count = size - off;
u64 i, j, val;
for (i = 0; i < count;) {
val = cxl_afu_cr_read64(afu, cr->cr, off & ~0x7);
......
......@@ -148,12 +148,6 @@ static ssize_t ds1682_eeprom_read(struct file *filp, struct kobject *kobj,
dev_dbg(&client->dev, "ds1682_eeprom_read(p=%p, off=%lli, c=%zi)\n",
buf, off, count);
if (off >= DS1682_EEPROM_SIZE)
return 0;
if (off + count > DS1682_EEPROM_SIZE)
count = DS1682_EEPROM_SIZE - off;
rc = i2c_smbus_read_i2c_block_data(client, DS1682_REG_EEPROM + off,
count, buf);
if (rc < 0)
......@@ -171,12 +165,6 @@ static ssize_t ds1682_eeprom_write(struct file *filp, struct kobject *kobj,
dev_dbg(&client->dev, "ds1682_eeprom_write(p=%p, off=%lli, c=%zi)\n",
buf, off, count);
if (off >= DS1682_EEPROM_SIZE)
return -ENOSPC;
if (off + count > DS1682_EEPROM_SIZE)
count = DS1682_EEPROM_SIZE - off;
/* Write out to the device */
if (i2c_smbus_write_i2c_block_data(client, DS1682_REG_EEPROM + off,
count, buf) < 0)
......
......@@ -96,17 +96,4 @@ config EEPROM_DIGSY_MTC_CFG
If unsure, say N.
config EEPROM_SUNXI_SID
tristate "Allwinner sunxi security ID support"
depends on ARCH_SUNXI && SYSFS
help
This is a driver for the 'security ID' available on various Allwinner
devices.
Due to the potential risks involved with changing e-fuses,
this driver is read-only.
This driver can also be built as a module. If so, the module
will be called sunxi_sid.
endmenu
......@@ -4,5 +4,4 @@ obj-$(CONFIG_EEPROM_LEGACY) += eeprom.o
obj-$(CONFIG_EEPROM_MAX6875) += max6875.o
obj-$(CONFIG_EEPROM_93CX6) += eeprom_93cx6.o
obj-$(CONFIG_EEPROM_93XX46) += eeprom_93xx46.o
obj-$(CONFIG_EEPROM_SUNXI_SID) += sunxi_sid.o
obj-$(CONFIG_EEPROM_DIGSY_MTC_CFG) += digsy_mtc_eeprom.o
......@@ -686,7 +686,6 @@ static int at24_remove(struct i2c_client *client)
static struct i2c_driver at24_driver = {
.driver = {
.name = "at24",
.owner = THIS_MODULE,
},
.probe = at24_probe,
.remove = at24_remove,
......
......@@ -88,11 +88,6 @@ static ssize_t eeprom_read(struct file *filp, struct kobject *kobj,
struct eeprom_data *data = i2c_get_clientdata(client);
u8 slice;
if (off > EEPROM_SIZE)
return 0;
if (off + count > EEPROM_SIZE)
count = EEPROM_SIZE - off;
/* Only refresh slices which contain requested bytes */
for (slice = off >> 5; slice <= (off + count - 1) >> 5; slice++)
eeprom_update_client(client, slice);
......
......@@ -48,13 +48,6 @@ eeprom_93xx46_bin_read(struct file *filp, struct kobject *kobj,
dev = container_of(kobj, struct device, kobj);
edev = dev_get_drvdata(dev);
if (unlikely(off >= edev->bin.size))
return 0;
if ((off + count) > edev->bin.size)
count = edev->bin.size - off;
if (unlikely(!count))
return count;
cmd_addr = OP_READ << edev->addrlen;
if (edev->addrlen == 7) {
......@@ -200,13 +193,6 @@ eeprom_93xx46_bin_write(struct file *filp, struct kobject *kobj,
dev = container_of(kobj, struct device, kobj);
edev = dev_get_drvdata(dev);
if (unlikely(off >= edev->bin.size))
return -EFBIG;
if ((off + count) > edev->bin.size)
count = edev->bin.size - off;
if (unlikely(!count))
return count;
/* only write even number of bytes on 16-bit devices */
if (edev->addrlen == 6) {
step = 2;
......
......@@ -114,12 +114,6 @@ static ssize_t max6875_read(struct file *filp, struct kobject *kobj,
struct max6875_data *data = i2c_get_clientdata(client);
int slice, max_slice;
if (off > USER_EEPROM_SIZE)
return 0;
if (off + count > USER_EEPROM_SIZE)
count = USER_EEPROM_SIZE - off;
/* refresh slices which contain requested bytes */
max_slice = (off + count - 1) >> SLICE_BITS;
for (slice = (off >> SLICE_BITS); slice <= max_slice; slice++)
......
......@@ -465,7 +465,6 @@ MODULE_DEVICE_TABLE(i2c, isl29003_id);
static struct i2c_driver isl29003_driver = {
.driver = {
.name = ISL29003_DRV_NAME,
.owner = THIS_MODULE,
.pm = ISL29003_PM_OPS,
},
.probe = isl29003_probe,
......
......@@ -274,7 +274,6 @@ static const struct dev_pm_ops lis3_pm_ops = {
static struct i2c_driver lis3lv02d_i2c_driver = {
.driver = {
.name = DRV_NAME,
.owner = THIS_MODULE,
.pm = &lis3_pm_ops,
.of_match_table = of_match_ptr(lis3lv02d_i2c_dt_ids),
},
......
......@@ -11,7 +11,7 @@ mei-objs += main.o
mei-objs += amthif.o
mei-objs += wd.o
mei-objs += bus.o
mei-objs += nfc.o
mei-objs += bus-fixup.o
mei-$(CONFIG_DEBUG_FS) += debugfs.o
obj-$(CONFIG_INTEL_MEI_ME) += mei-me.o
......
/*
*
* Intel Management Engine Interface (Intel MEI) Linux driver
* Copyright (c) 2003-2013, Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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.
*
*/
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/device.h>
#include <linux/slab.h>
#include <linux/uuid.h>
#include <linux/mei_cl_bus.h>
#include "mei_dev.h"
#include "client.h"
#define MEI_UUID_NFC_INFO UUID_LE(0xd2de1625, 0x382d, 0x417d, \
0x48, 0xa4, 0xef, 0xab, 0xba, 0x8a, 0x12, 0x06)
static const uuid_le mei_nfc_info_guid = MEI_UUID_NFC_INFO;
#define MEI_UUID_NFC_HCI UUID_LE(0x0bb17a78, 0x2a8e, 0x4c50, \
0x94, 0xd4, 0x50, 0x26, 0x67, 0x23, 0x77, 0x5c)
#define MEI_UUID_ANY NULL_UUID_LE
/**
* number_of_connections - determine whether an client be on the bus
* according number of connections
* We support only clients:
* 1. with single connection
* 2. and fixed clients (max_number_of_connections == 0)
*
* @cldev: me clients device
*/
static void number_of_connections(struct mei_cl_device *cldev)
{
dev_dbg(&cldev->dev, "running hook %s on %pUl\n",
__func__, mei_me_cl_uuid(cldev->me_cl));
if (cldev->me_cl->props.max_number_of_connections > 1)
cldev->do_match = 0;
}
/**
* blacklist - blacklist a client from the bus
*
* @cldev: me clients device
*/
static void blacklist(struct mei_cl_device *cldev)
{
dev_dbg(&cldev->dev, "running hook %s on %pUl\n",
__func__, mei_me_cl_uuid(cldev->me_cl));
cldev->do_match = 0;
}
struct mei_nfc_cmd {
u8 command;
u8 status;
u16 req_id;
u32 reserved;
u16 data_size;
u8 sub_command;
u8 data[];
} __packed;
struct mei_nfc_reply {
u8 command;
u8 status;
u16 req_id;
u32 reserved;
u16 data_size;
u8 sub_command;
u8 reply_status;
u8 data[];
} __packed;
struct mei_nfc_if_version {
u8 radio_version_sw[3];
u8 reserved[3];
u8 radio_version_hw[3];
u8 i2c_addr;
u8 fw_ivn;
u8 vendor_id;
u8 radio_type;
} __packed;
#define MEI_NFC_CMD_MAINTENANCE 0x00
#define MEI_NFC_SUBCMD_IF_VERSION 0x01
/* Vendors */
#define MEI_NFC_VENDOR_INSIDE 0x00
#define MEI_NFC_VENDOR_NXP 0x01
/* Radio types */
#define MEI_NFC_VENDOR_INSIDE_UREAD 0x00
#define MEI_NFC_VENDOR_NXP_PN544 0x01
/**
* mei_nfc_if_version - get NFC interface version
*
* @cl: host client (nfc info)
* @ver: NFC interface version to be filled in
*
* Return: 0 on success; < 0 otherwise
*/
static int mei_nfc_if_version(struct mei_cl *cl,
struct mei_nfc_if_version *ver)
{
struct mei_device *bus;
struct mei_nfc_cmd cmd = {
.command = MEI_NFC_CMD_MAINTENANCE,
.data_size = 1,
.sub_command = MEI_NFC_SUBCMD_IF_VERSION,
};
struct mei_nfc_reply *reply = NULL;
size_t if_version_length;
int bytes_recv, ret;
bus = cl->dev;
WARN_ON(mutex_is_locked(&bus->device_lock));
ret = __mei_cl_send(cl, (u8 *)&cmd, sizeof(struct mei_nfc_cmd), 1);
if (ret < 0) {
dev_err(bus->dev, "Could not send IF version cmd\n");
return ret;
}
/* to be sure on the stack we alloc memory */
if_version_length = sizeof(struct mei_nfc_reply) +
sizeof(struct mei_nfc_if_version);
reply = kzalloc(if_version_length, GFP_KERNEL);
if (!reply)
return -ENOMEM;
ret = 0;
bytes_recv = __mei_cl_recv(cl, (u8 *)reply, if_version_length);
if (bytes_recv < 0 || bytes_recv < sizeof(struct mei_nfc_reply)) {
dev_err(bus->dev, "Could not read IF version\n");
ret = -EIO;
goto err;
}
memcpy(ver, reply->data, sizeof(struct mei_nfc_if_version));
dev_info(bus->dev, "NFC MEI VERSION: IVN 0x%x Vendor ID 0x%x Type 0x%x\n",
ver->fw_ivn, ver->vendor_id, ver->radio_type);
err:
kfree(reply);
return ret;
}
/**
* mei_nfc_radio_name - derive nfc radio name from the interface version
*
* @ver: NFC radio version
*
* Return: radio name string
*/
static const char *mei_nfc_radio_name(struct mei_nfc_if_version *ver)
{
if (ver->vendor_id == MEI_NFC_VENDOR_INSIDE) {
if (ver->radio_type == MEI_NFC_VENDOR_INSIDE_UREAD)
return "microread";
}
if (ver->vendor_id == MEI_NFC_VENDOR_NXP) {
if (ver->radio_type == MEI_NFC_VENDOR_NXP_PN544)
return "pn544";
}
return NULL;
}
/**
* mei_nfc - The nfc fixup function. The function retrieves nfc radio
* name and set is as device attribute so we can load
* the proper device driver for it
*
* @cldev: me client device (nfc)
*/
static void mei_nfc(struct mei_cl_device *cldev)
{
struct mei_device *bus;
struct mei_cl *cl;
struct mei_me_client *me_cl = NULL;
struct mei_nfc_if_version ver;
const char *radio_name = NULL;
int ret;
bus = cldev->bus;
dev_dbg(bus->dev, "running hook %s: %pUl match=%d\n",
__func__, mei_me_cl_uuid(cldev->me_cl), cldev->do_match);
mutex_lock(&bus->device_lock);
/* we need to connect to INFO GUID */
cl = mei_cl_alloc_linked(bus, MEI_HOST_CLIENT_ID_ANY);
if (IS_ERR(cl)) {
ret = PTR_ERR(cl);
cl = NULL;
dev_err(bus->dev, "nfc hook alloc failed %d\n", ret);
goto out;
}
me_cl = mei_me_cl_by_uuid(bus, &mei_nfc_info_guid);
if (!me_cl) {
ret = -ENOTTY;
dev_err(bus->dev, "Cannot find nfc info %d\n", ret);
goto out;
}
ret = mei_cl_connect(cl, me_cl, NULL);
if (ret < 0) {
dev_err(&cldev->dev, "Can't connect to the NFC INFO ME ret = %d\n",
ret);
goto out;
}
mutex_unlock(&bus->device_lock);
ret = mei_nfc_if_version(cl, &ver);
if (ret)
goto disconnect;
radio_name = mei_nfc_radio_name(&ver);
if (!radio_name) {
ret = -ENOENT;
dev_err(&cldev->dev, "Can't get the NFC interface version ret = %d\n",
ret);
goto disconnect;
}
dev_dbg(bus->dev, "nfc radio %s\n", radio_name);
strlcpy(cldev->name, radio_name, sizeof(cldev->name));
disconnect:
mutex_lock(&bus->device_lock);
if (mei_cl_disconnect(cl) < 0)
dev_err(bus->dev, "Can't disconnect the NFC INFO ME\n");
mei_cl_flush_queues(cl, NULL);
out:
mei_cl_unlink(cl);
mutex_unlock(&bus->device_lock);
mei_me_cl_put(me_cl);
kfree(cl);
if (ret)
cldev->do_match = 0;
dev_dbg(bus->dev, "end of fixup match = %d\n", cldev->do_match);
}
#define MEI_FIXUP(_uuid, _hook) { _uuid, _hook }
static struct mei_fixup {
const uuid_le uuid;
void (*hook)(struct mei_cl_device *cldev);
} mei_fixups[] = {
MEI_FIXUP(MEI_UUID_ANY, number_of_connections),
MEI_FIXUP(MEI_UUID_NFC_INFO, blacklist),
MEI_FIXUP(MEI_UUID_NFC_HCI, mei_nfc),
};
/**
* mei_cl_dev_fixup - run fixup handlers
*
* @cldev: me client device
*/
void mei_cl_dev_fixup(struct mei_cl_device *cldev)
{
struct mei_fixup *f;
const uuid_le *uuid = mei_me_cl_uuid(cldev->me_cl);
int i;
for (i = 0; i < ARRAY_SIZE(mei_fixups); i++) {
f = &mei_fixups[i];
if (uuid_le_cmp(f->uuid, MEI_UUID_ANY) == 0 ||
uuid_le_cmp(f->uuid, *uuid) == 0)
f->hook(cldev);
}
}
此差异已折叠。
......@@ -555,10 +555,10 @@ void mei_cl_init(struct mei_cl *cl, struct mei_device *dev)
init_waitqueue_head(&cl->wait);
init_waitqueue_head(&cl->rx_wait);
init_waitqueue_head(&cl->tx_wait);
init_waitqueue_head(&cl->ev_wait);
INIT_LIST_HEAD(&cl->rd_completed);
INIT_LIST_HEAD(&cl->rd_pending);
INIT_LIST_HEAD(&cl->link);
INIT_LIST_HEAD(&cl->device_link);
cl->writing_state = MEI_IDLE;
cl->state = MEI_FILE_INITIALIZING;
cl->dev = dev;
......@@ -690,16 +690,12 @@ void mei_host_client_init(struct work_struct *work)
mei_wd_host_init(dev, me_cl);
mei_me_cl_put(me_cl);
me_cl = mei_me_cl_by_uuid(dev, &mei_nfc_guid);
if (me_cl)
mei_nfc_host_init(dev, me_cl);
mei_me_cl_put(me_cl);
dev->dev_state = MEI_DEV_ENABLED;
dev->reset_count = 0;
mutex_unlock(&dev->device_lock);
mei_cl_bus_rescan(dev);
pm_runtime_mark_last_busy(dev->dev);
dev_dbg(dev->dev, "rpm: autosuspend\n");
pm_runtime_autosuspend(dev->dev);
......@@ -841,45 +837,22 @@ int mei_cl_irq_disconnect(struct mei_cl *cl, struct mei_cl_cb *cb,
return ret;
}
/**
* mei_cl_disconnect - disconnect host client from the me one
* __mei_cl_disconnect - disconnect host client from the me one
* internal function runtime pm has to be already acquired
*
* @cl: host client
*
* Locking: called under "dev->device_lock" lock
*
* Return: 0 on success, <0 on failure.
*/
int mei_cl_disconnect(struct mei_cl *cl)
static int __mei_cl_disconnect(struct mei_cl *cl)
{
struct mei_device *dev;
struct mei_cl_cb *cb;
int rets;
if (WARN_ON(!cl || !cl->dev))
return -ENODEV;
dev = cl->dev;
cl_dbg(dev, cl, "disconnecting");
if (!mei_cl_is_connected(cl))
return 0;
if (mei_cl_is_fixed_address(cl)) {
mei_cl_set_disconnected(cl);
return 0;
}
rets = pm_runtime_get(dev->dev);
if (rets < 0 && rets != -EINPROGRESS) {
pm_runtime_put_noidle(dev->dev);
cl_err(dev, cl, "rpm: get failed %d\n", rets);
return rets;
}
cl->state = MEI_FILE_DISCONNECTING;
cb = mei_io_cb_init(cl, MEI_FOP_DISCONNECT, NULL);
......@@ -915,11 +888,52 @@ int mei_cl_disconnect(struct mei_cl *cl)
if (!rets)
cl_dbg(dev, cl, "successfully disconnected from FW client.\n");
mei_io_cb_free(cb);
return rets;
}
/**
* mei_cl_disconnect - disconnect host client from the me one
*
* @cl: host client
*
* Locking: called under "dev->device_lock" lock
*
* Return: 0 on success, <0 on failure.
*/
int mei_cl_disconnect(struct mei_cl *cl)
{
struct mei_device *dev;
int rets;
if (WARN_ON(!cl || !cl->dev))
return -ENODEV;
dev = cl->dev;
cl_dbg(dev, cl, "disconnecting");
if (!mei_cl_is_connected(cl))
return 0;
if (mei_cl_is_fixed_address(cl)) {
mei_cl_set_disconnected(cl);
return 0;
}
rets = pm_runtime_get(dev->dev);
if (rets < 0 && rets != -EINPROGRESS) {
pm_runtime_put_noidle(dev->dev);
cl_err(dev, cl, "rpm: get failed %d\n", rets);
return rets;
}
rets = __mei_cl_disconnect(cl);
cl_dbg(dev, cl, "rpm: autosuspend\n");
pm_runtime_mark_last_busy(dev->dev);
pm_runtime_put_autosuspend(dev->dev);
mei_io_cb_free(cb);
return rets;
}
......@@ -1064,11 +1078,23 @@ int mei_cl_connect(struct mei_cl *cl, struct mei_me_client *me_cl,
mutex_unlock(&dev->device_lock);
wait_event_timeout(cl->wait,
(cl->state == MEI_FILE_CONNECTED ||
cl->state == MEI_FILE_DISCONNECT_REQUIRED ||
cl->state == MEI_FILE_DISCONNECT_REPLY),
mei_secs_to_jiffies(MEI_CL_CONNECT_TIMEOUT));
mutex_lock(&dev->device_lock);
if (!mei_cl_is_connected(cl)) {
if (cl->state == MEI_FILE_DISCONNECT_REQUIRED) {
mei_io_list_flush(&dev->ctrl_rd_list, cl);
mei_io_list_flush(&dev->ctrl_wr_list, cl);
/* ignore disconnect return valuue;
* in case of failure reset will be invoked
*/
__mei_cl_disconnect(cl);
rets = -EFAULT;
goto out;
}
/* timeout or something went really wrong */
if (!cl->status)
cl->status = -EFAULT;
......@@ -1180,6 +1206,221 @@ int mei_cl_flow_ctrl_reduce(struct mei_cl *cl)
return 0;
}
/**
* mei_cl_notify_fop2req - convert fop to proper request
*
* @fop: client notification start response command
*
* Return: MEI_HBM_NOTIFICATION_START/STOP
*/
u8 mei_cl_notify_fop2req(enum mei_cb_file_ops fop)
{
if (fop == MEI_FOP_NOTIFY_START)
return MEI_HBM_NOTIFICATION_START;
else
return MEI_HBM_NOTIFICATION_STOP;
}
/**
* mei_cl_notify_req2fop - convert notification request top file operation type
*
* @req: hbm notification request type
*
* Return: MEI_FOP_NOTIFY_START/STOP
*/
enum mei_cb_file_ops mei_cl_notify_req2fop(u8 req)
{
if (req == MEI_HBM_NOTIFICATION_START)
return MEI_FOP_NOTIFY_START;
else
return MEI_FOP_NOTIFY_STOP;
}
/**
* mei_cl_irq_notify - send notification request in irq_thread context
*
* @cl: client
* @cb: callback block.
* @cmpl_list: complete list.
*
* Return: 0 on such and error otherwise.
*/
int mei_cl_irq_notify(struct mei_cl *cl, struct mei_cl_cb *cb,
struct mei_cl_cb *cmpl_list)
{
struct mei_device *dev = cl->dev;
u32 msg_slots;
int slots;
int ret;
bool request;
msg_slots = mei_data2slots(sizeof(struct hbm_client_connect_request));
slots = mei_hbuf_empty_slots(dev);
if (slots < msg_slots)
return -EMSGSIZE;
request = mei_cl_notify_fop2req(cb->fop_type);
ret = mei_hbm_cl_notify_req(dev, cl, request);
if (ret) {
cl->status = ret;
list_move_tail(&cb->list, &cmpl_list->list);
return ret;
}
list_move_tail(&cb->list, &dev->ctrl_rd_list.list);
return 0;
}
/**
* mei_cl_notify_request - send notification stop/start request
*
* @cl: host client
* @file: associate request with file
* @request: 1 for start or 0 for stop
*
* Locking: called under "dev->device_lock" lock
*
* Return: 0 on such and error otherwise.
*/
int mei_cl_notify_request(struct mei_cl *cl, struct file *file, u8 request)
{
struct mei_device *dev;
struct mei_cl_cb *cb;
enum mei_cb_file_ops fop_type;
int rets;
if (WARN_ON(!cl || !cl->dev))
return -ENODEV;
dev = cl->dev;
if (!dev->hbm_f_ev_supported) {
cl_dbg(dev, cl, "notifications not supported\n");
return -EOPNOTSUPP;
}
rets = pm_runtime_get(dev->dev);
if (rets < 0 && rets != -EINPROGRESS) {
pm_runtime_put_noidle(dev->dev);
cl_err(dev, cl, "rpm: get failed %d\n", rets);
return rets;
}
fop_type = mei_cl_notify_req2fop(request);
cb = mei_io_cb_init(cl, fop_type, file);
if (!cb) {
rets = -ENOMEM;
goto out;
}
if (mei_hbuf_acquire(dev)) {
if (mei_hbm_cl_notify_req(dev, cl, request)) {
rets = -ENODEV;
goto out;
}
list_add_tail(&cb->list, &dev->ctrl_rd_list.list);
} else {
list_add_tail(&cb->list, &dev->ctrl_wr_list.list);
}
mutex_unlock(&dev->device_lock);
wait_event_timeout(cl->wait, cl->notify_en == request,
mei_secs_to_jiffies(MEI_CL_CONNECT_TIMEOUT));
mutex_lock(&dev->device_lock);
if (cl->notify_en != request) {
mei_io_list_flush(&dev->ctrl_rd_list, cl);
mei_io_list_flush(&dev->ctrl_wr_list, cl);
if (!cl->status)
cl->status = -EFAULT;
}
rets = cl->status;
out:
cl_dbg(dev, cl, "rpm: autosuspend\n");
pm_runtime_mark_last_busy(dev->dev);
pm_runtime_put_autosuspend(dev->dev);
mei_io_cb_free(cb);
return rets;
}
/**
* mei_cl_notify - raise notification
*
* @cl: host client
*
* Locking: called under "dev->device_lock" lock
*/
void mei_cl_notify(struct mei_cl *cl)
{
struct mei_device *dev;
if (!cl || !cl->dev)
return;
dev = cl->dev;
if (!cl->notify_en)
return;
cl_dbg(dev, cl, "notify event");
cl->notify_ev = true;
wake_up_interruptible_all(&cl->ev_wait);
if (cl->ev_async)
kill_fasync(&cl->ev_async, SIGIO, POLL_PRI);
mei_cl_bus_notify_event(cl);
}
/**
* mei_cl_notify_get - get or wait for notification event
*
* @cl: host client
* @block: this request is blocking
* @notify_ev: true if notification event was received
*
* Locking: called under "dev->device_lock" lock
*
* Return: 0 on such and error otherwise.
*/
int mei_cl_notify_get(struct mei_cl *cl, bool block, bool *notify_ev)
{
struct mei_device *dev;
int rets;
*notify_ev = false;
if (WARN_ON(!cl || !cl->dev))
return -ENODEV;
dev = cl->dev;
if (!mei_cl_is_connected(cl))
return -ENODEV;
if (cl->notify_ev)
goto out;
if (!block)
return -EAGAIN;
mutex_unlock(&dev->device_lock);
rets = wait_event_interruptible(cl->ev_wait, cl->notify_ev);
mutex_lock(&dev->device_lock);
if (rets < 0)
return rets;
out:
*notify_ev = cl->notify_ev;
cl->notify_ev = false;
return 0;
}
/**
* mei_cl_read_start - the start read client message function.
*
......@@ -1356,6 +1597,7 @@ int mei_cl_write(struct mei_cl *cl, struct mei_cl_cb *cb, bool blocking)
struct mei_device *dev;
struct mei_msg_data *buf;
struct mei_msg_hdr mei_hdr;
int size;
int rets;
......@@ -1367,10 +1609,10 @@ int mei_cl_write(struct mei_cl *cl, struct mei_cl_cb *cb, bool blocking)
dev = cl->dev;
buf = &cb->buf;
size = buf->size;
cl_dbg(dev, cl, "size=%d\n", buf->size);
cl_dbg(dev, cl, "size=%d\n", size);
rets = pm_runtime_get(dev->dev);
if (rets < 0 && rets != -EINPROGRESS) {
......@@ -1394,21 +1636,21 @@ int mei_cl_write(struct mei_cl *cl, struct mei_cl_cb *cb, bool blocking)
if (rets == 0) {
cl_dbg(dev, cl, "No flow control credentials: not sending.\n");
rets = buf->size;
rets = size;
goto out;
}
if (!mei_hbuf_acquire(dev)) {
cl_dbg(dev, cl, "Cannot acquire the host buffer: not sending.\n");
rets = buf->size;
rets = size;
goto out;
}
/* Check for a maximum length */
if (buf->size > mei_hbuf_max_len(dev)) {
if (size > mei_hbuf_max_len(dev)) {
mei_hdr.length = mei_hbuf_max_len(dev);
mei_hdr.msg_complete = 0;
} else {
mei_hdr.length = buf->size;
mei_hdr.length = size;
mei_hdr.msg_complete = 1;
}
......@@ -1430,6 +1672,7 @@ int mei_cl_write(struct mei_cl *cl, struct mei_cl_cb *cb, bool blocking)
else
list_add_tail(&cb->list, &dev->write_list.list);
cb = NULL;
if (blocking && cl->writing_state != MEI_WRITE_COMPLETE) {
mutex_unlock(&dev->device_lock);
......@@ -1444,7 +1687,7 @@ int mei_cl_write(struct mei_cl *cl, struct mei_cl_cb *cb, bool blocking)
}
}
rets = buf->size;
rets = size;
err:
cl_dbg(dev, cl, "rpm: autosuspend\n");
pm_runtime_mark_last_busy(dev->dev);
......@@ -1486,6 +1729,8 @@ void mei_cl_complete(struct mei_cl *cl, struct mei_cl_cb *cb)
case MEI_FOP_CONNECT:
case MEI_FOP_DISCONNECT:
case MEI_FOP_NOTIFY_STOP:
case MEI_FOP_NOTIFY_START:
if (waitqueue_active(&cl->wait))
wake_up(&cl->wait);
......@@ -1528,6 +1773,12 @@ void mei_cl_all_wakeup(struct mei_device *dev)
cl_dbg(dev, cl, "Waking up writing client!\n");
wake_up_interruptible(&cl->tx_wait);
}
/* synchronized under device mutex */
if (waitqueue_active(&cl->ev_wait)) {
cl_dbg(dev, cl, "Waking up waiting for event clients!\n");
wake_up_interruptible(&cl->ev_wait);
}
}
}
......
......@@ -219,6 +219,14 @@ void mei_cl_complete(struct mei_cl *cl, struct mei_cl_cb *cb);
void mei_host_client_init(struct work_struct *work);
u8 mei_cl_notify_fop2req(enum mei_cb_file_ops fop);
enum mei_cb_file_ops mei_cl_notify_req2fop(u8 request);
int mei_cl_notify_request(struct mei_cl *cl, struct file *file, u8 request);
int mei_cl_irq_notify(struct mei_cl *cl, struct mei_cl_cb *cb,
struct mei_cl_cb *cmpl_list);
int mei_cl_notify_get(struct mei_cl *cl, bool block, bool *notify_ev);
void mei_cl_notify(struct mei_cl *cl);
void mei_cl_all_disconnect(struct mei_device *dev);
void mei_cl_all_wakeup(struct mei_device *dev);
void mei_cl_all_write_clear(struct mei_device *dev);
......
......@@ -154,6 +154,12 @@ static ssize_t mei_dbgfs_read_devstate(struct file *fp, char __user *ubuf,
pos += scnprintf(buf + pos, bufsz - pos, "hbm features:\n");
pos += scnprintf(buf + pos, bufsz - pos, "\tPG: %01d\n",
dev->hbm_f_pg_supported);
pos += scnprintf(buf + pos, bufsz - pos, "\tDC: %01d\n",
dev->hbm_f_dc_supported);
pos += scnprintf(buf + pos, bufsz - pos, "\tDOT: %01d\n",
dev->hbm_f_dot_supported);
pos += scnprintf(buf + pos, bufsz - pos, "\tEV: %01d\n",
dev->hbm_f_ev_supported);
}
pos += scnprintf(buf + pos, bufsz - pos, "pg: %s, %s\n",
......
此差异已折叠。
......@@ -54,6 +54,9 @@ int mei_hbm_cl_disconnect_rsp(struct mei_device *dev, struct mei_cl *cl);
int mei_hbm_cl_connect_req(struct mei_device *dev, struct mei_cl *cl);
bool mei_hbm_version_is_supported(struct mei_device *dev);
int mei_hbm_pg(struct mei_device *dev, u8 pg_cmd);
void mei_hbm_pg_resume(struct mei_device *dev);
int mei_hbm_cl_notify_req(struct mei_device *dev,
struct mei_cl *cl, u8 request);
#endif /* _MEI_HBM_H_ */
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
......@@ -446,7 +446,6 @@ MODULE_DEVICE_TABLE(i2c, tsl2550_id);
static struct i2c_driver tsl2550_driver = {
.driver = {
.name = TSL2550_DRV_NAME,
.owner = THIS_MODULE,
.pm = TSL2550_PM_OPS,
},
.probe = tsl2550_probe,
......
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
此差异已折叠。
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册