</para>
</sect1>
-<sect1 id="using uio_dmem_genirq">
+<sect1 id="using-uio_dmem_genirq">
<title>Using uio_dmem_genirq for platform devices</title>
<para>
In addition to statically allocated memory ranges, they may also be
following elements:
</para>
<itemizedlist>
- <listitem><varname>struct uio_info uioinfo</varname>: The same
+ <listitem><para><varname>struct uio_info uioinfo</varname>: The same
structure used as the <varname>uio_pdrv_genirq</varname> platform
- data</listitem>
- <listitem><varname>unsigned int *dynamic_region_sizes</varname>:
+ data</para></listitem>
+ <listitem><para><varname>unsigned int *dynamic_region_sizes</varname>:
Pointer to list of sizes of dynamic memory regions to be mapped into
user space.
- </listitem>
- <listitem><varname>unsigned int num_dynamic_regions</varname>:
+ </para></listitem>
+ <listitem><para><varname>unsigned int num_dynamic_regions</varname>:
Number of elements in <varname>dynamic_region_sizes</varname> array.
- </listitem>
+ </para></listitem>
</itemizedlist>
<para>
The dynamic regions defined in the platform data will be appended to
AMBA markee):
- "arm,coresight-replicator"
- * id: a unique number that will identify this replicator.
-
* port or ports: same as above.
* Optional properties for ETM/PTMs:
* AMBA bus. As such no need to add "arm,primecell".
*/
compatible = "arm,coresight-replicator";
- /* this will show up in debugfs as "0.replicator" */
- id = <0>;
ports {
#address-cells = <1>;
"fsl,pq2-localbus";
#address-cells = <2>;
#size-cells = <1>;
- reg = <f0010100 40>;
+ reg = <0xf0010100 0x40>;
- ranges = <0 0 fe000000 02000000
- 1 0 f4500000 00008000>;
+ ranges = <0x0 0x0 0xfe000000 0x02000000
+ 0x1 0x0 0xf4500000 0x00008000
+ 0x2 0x0 0xfd810000 0x00010000>;
flash@0,0 {
compatible = "jedec-flash";
- reg = <0 0 2000000>;
+ reg = <0x0 0x0 0x2000000>;
bank-width = <4>;
device-width = <1>;
};
board-control@1,0 {
- reg = <1 0 20>;
+ reg = <0x1 0x0 0x20>;
compatible = "fsl,mpc8272ads-bcsr";
};
+
+ simple-periph@2,0 {
+ compatible = "fsl,elbc-gpcm-uio";
+ reg = <0x2 0x0 0x10000>;
+ elbc-gpcm-br = <0xfd810800>;
+ elbc-gpcm-or = <0xffff09f7>;
+ };
};
- If the patch covers files in net/ or drivers/net please follow netdev stable
submission guidelines as described in
Documentation/networking/netdev-FAQ.txt
- - Send the patch, after verifying that it follows the above rules, to
- stable@vger.kernel.org. You must note the upstream commit ID in the
- changelog of your submission, as well as the kernel version you wish
- it to be applied to.
- - To have the patch automatically included in the stable tree, add the tag
+ - Security patches should not be handled (solely) by the -stable review
+ process but should follow the procedures in Documentation/SecurityBugs.
+
+For all other submissions, choose one of the following procedures:
+
+ --- Option 1 ---
+
+ To have the patch automatically included in the stable tree, add the tag
Cc: stable@vger.kernel.org
in the sign-off area. Once the patch is merged it will be applied to
the stable tree without anything else needing to be done by the author
or subsystem maintainer.
- - If the patch requires other patches as prerequisites which can be
- cherry-picked, then this can be specified in the following format in
- the sign-off area:
+
+ --- Option 2 ---
+
+ After the patch has been merged to Linus' tree, send an email to
+ stable@vger.kernel.org containing the subject of the patch, the commit ID,
+ why you think it should be applied, and what kernel version you wish it to
+ be applied to.
+
+ --- Option 3 ---
+
+ Send the patch, after verifying that it follows the above rules, to
+ stable@vger.kernel.org. You must note the upstream commit ID in the
+ changelog of your submission, as well as the kernel version you wish
+ it to be applied to.
+
+Option 1 is probably the easiest and most common. Options 2 and 3 are more
+useful if the patch isn't deemed worthy at the time it is applied to a public
+git tree (for instance, because it deserves more regression testing first).
+Option 3 is especially useful if the patch needs some special handling to apply
+to an older kernel (e.g., if API's have changed in the meantime).
+
+Additionally, some patches submitted via Option 1 may have additional patch
+prerequisites which can be cherry-picked. This can be specified in the following
+format in the sign-off area:
Cc: <stable@vger.kernel.org> # 3.3.x: a1f84a3: sched: Check for idle
Cc: <stable@vger.kernel.org> # 3.3.x: 1b9508f: sched: Rate-limit newidle
git cherry-pick fd21073
git cherry-pick <this commit>
+Following the submission:
+
- The sender will receive an ACK when the patch has been accepted into the
queue, or a NAK if the patch is rejected. This response might take a few
days, according to the developer's schedules.
- If accepted, the patch will be added to the -stable queue, for review by
other developers and by the relevant subsystem maintainer.
- - Security patches should not be sent to this alias, but instead to the
- documented security@kernel.org address.
Review cycle:
| | . | ! | | . | ! | ! . | | SWD/
| | . | ! | | . | ! | ! . | | JTAG
*****************************************************************<-|
- *************************** AMBA Debug ABP ************************
+ *************************** AMBA Debug APB ************************
*****************************************************************
| . ! . ! ! . |
| . * . * * . |
To trace port TPIU= Trace Port Interface Unit
SWD = Serial Wire Debug
-While on target configuration of the components is done via the ABP bus,
+While on target configuration of the components is done via the APB bus,
all trace data are carried out-of-band on the ATB bus. The CTM provides
a way to aggregate and distribute signals between CoreSight components.
DELL LAPTOP SMM DRIVER
M: Guenter Roeck <linux@roeck-us.net>
+S: Maintained
F: drivers/char/i8k.c
F: include/uapi/linux/i8k.h
#define OR_FCM_TRLX_SHIFT 2
#define OR_FCM_EHTR 0x00000002
#define OR_FCM_EHTR_SHIFT 1
+
+#define OR_GPCM_AM 0xFFFF8000
+#define OR_GPCM_AM_SHIFT 15
};
struct fsl_lbc_regs {
#define HV_X64_MSR_SINT14 0x4000009E
#define HV_X64_MSR_SINT15 0x4000009F
+/*
+ * Synthetic Timer MSRs. Four timers per vcpu.
+ */
+#define HV_X64_MSR_STIMER0_CONFIG 0x400000B0
+#define HV_X64_MSR_STIMER0_COUNT 0x400000B1
+#define HV_X64_MSR_STIMER1_CONFIG 0x400000B2
+#define HV_X64_MSR_STIMER1_COUNT 0x400000B3
+#define HV_X64_MSR_STIMER2_CONFIG 0x400000B4
+#define HV_X64_MSR_STIMER2_COUNT 0x400000B5
+#define HV_X64_MSR_STIMER3_CONFIG 0x400000B6
+#define HV_X64_MSR_STIMER3_COUNT 0x400000B7
#define HV_X64_MSR_HYPERCALL_ENABLE 0x00000001
#define HV_X64_MSR_HYPERCALL_PAGE_ADDRESS_SHIFT 12
#include <linux/vmalloc.h>
#include <linux/slab.h>
#include <linux/pid_namespace.h>
+#include <linux/security.h>
#ifdef CONFIG_ANDROID_BINDER_IPC_32BIT
#define BINDER_IPC_32BIT 1
return_error = BR_DEAD_REPLY;
goto err_dead_binder;
}
+ if (security_binder_transaction(proc->tsk,
+ target_proc->tsk) < 0) {
+ return_error = BR_FAILED_REPLY;
+ goto err_invalid_target_handle;
+ }
if (!(tr->flags & TF_ONE_WAY) && thread->transaction_stack) {
struct binder_transaction *tmp;
return_error = BR_FAILED_REPLY;
goto err_binder_get_ref_for_node_failed;
}
+ if (security_binder_transfer_binder(proc->tsk,
+ target_proc->tsk)) {
+ return_error = BR_FAILED_REPLY;
+ goto err_binder_get_ref_for_node_failed;
+ }
ref = binder_get_ref_for_node(target_proc, node);
if (ref == NULL) {
return_error = BR_FAILED_REPLY;
return_error = BR_FAILED_REPLY;
goto err_binder_get_ref_failed;
}
+ if (security_binder_transfer_binder(proc->tsk,
+ target_proc->tsk)) {
+ return_error = BR_FAILED_REPLY;
+ goto err_binder_get_ref_failed;
+ }
if (ref->node->proc == target_proc) {
if (fp->type == BINDER_TYPE_HANDLE)
fp->type = BINDER_TYPE_BINDER;
return_error = BR_FAILED_REPLY;
goto err_fget_failed;
}
+ if (security_binder_transfer_file(proc->tsk,
+ target_proc->tsk,
+ file) < 0) {
+ fput(file);
+ return_error = BR_FAILED_REPLY;
+ goto err_get_unused_fd_failed;
+ }
target_fd = task_get_unused_fd_flags(target_proc, O_CLOEXEC);
if (target_fd < 0) {
fput(file);
ret = -EBUSY;
goto out;
}
+ ret = security_binder_set_context_mgr(proc->tsk);
+ if (ret < 0)
+ goto out;
if (uid_valid(binder_context_mgr_uid)) {
if (!uid_eq(binder_context_mgr_uid, curr_euid)) {
pr_err("BINDER_SET_CONTEXT_MGR bad uid %d != %d\n",
source "drivers/tty/Kconfig"
+config DEVMEM
+ bool "/dev/mem virtual device support"
+ default y
+ help
+ Say Y here if you want to support the /dev/mem device.
+ The /dev/mem device is used to access areas of physical
+ memory.
+ When in doubt, say "Y".
+
config DEVKMEM
bool "/dev/kmem virtual device support"
default y
*
* Hwmon integration:
* Copyright (C) 2011 Jean Delvare <jdelvare@suse.de>
- * Copyright (C) 2013 Guenter Roeck <linux@roeck-us.net>
+ * Copyright (C) 2013, 2014 Guenter Roeck <linux@roeck-us.net>
+ * Copyright (C) 2014 Pali Rohár <pali.rohar@gmail.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+#include <linux/delay.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/init.h>
#define I8K_SMM_SET_FAN 0x01a3
#define I8K_SMM_GET_FAN 0x00a3
#define I8K_SMM_GET_SPEED 0x02a3
+#define I8K_SMM_GET_FAN_TYPE 0x03a3
+#define I8K_SMM_GET_NOM_SPEED 0x04a3
#define I8K_SMM_GET_TEMP 0x10a3
+#define I8K_SMM_GET_TEMP_TYPE 0x11a3
#define I8K_SMM_GET_DELL_SIG1 0xfea3
#define I8K_SMM_GET_DELL_SIG2 0xffa3
#define I8K_FAN_MULT 30
+#define I8K_FAN_MAX_RPM 30000
#define I8K_MAX_TEMP 127
#define I8K_FN_NONE 0x00
#define I8K_POWER_AC 0x05
#define I8K_POWER_BATTERY 0x01
-#define I8K_TEMPERATURE_BUG 1
-
static DEFINE_MUTEX(i8k_mutex);
static char bios_version[4];
static struct device *i8k_hwmon_dev;
static u32 i8k_hwmon_flags;
-static int i8k_fan_mult;
-static int i8k_pwm_mult;
-static int i8k_fan_max = I8K_FAN_HIGH;
+static uint i8k_fan_mult = I8K_FAN_MULT;
+static uint i8k_pwm_mult;
+static uint i8k_fan_max = I8K_FAN_HIGH;
#define I8K_HWMON_HAVE_TEMP1 (1 << 0)
#define I8K_HWMON_HAVE_TEMP2 (1 << 1)
module_param(power_status, bool, 0600);
MODULE_PARM_DESC(power_status, "Report power status in /proc/i8k");
-static int fan_mult = I8K_FAN_MULT;
-module_param(fan_mult, int, 0);
-MODULE_PARM_DESC(fan_mult, "Factor to multiply fan speed with");
+static uint fan_mult;
+module_param(fan_mult, uint, 0);
+MODULE_PARM_DESC(fan_mult, "Factor to multiply fan speed with (default: autodetect)");
-static int fan_max = I8K_FAN_HIGH;
-module_param(fan_max, int, 0);
-MODULE_PARM_DESC(fan_max, "Maximum configurable fan speed");
+static uint fan_max;
+module_param(fan_max, uint, 0);
+MODULE_PARM_DESC(fan_max, "Maximum configurable fan speed (default: autodetect)");
static int i8k_open_fs(struct inode *inode, struct file *file);
static long i8k_ioctl(struct file *, unsigned int, unsigned long);
return i8k_smm(®s) ? : (regs.eax & 0xffff) * i8k_fan_mult;
}
+/*
+ * Read the fan type.
+ */
+static int i8k_get_fan_type(int fan)
+{
+ struct smm_regs regs = { .eax = I8K_SMM_GET_FAN_TYPE, };
+
+ regs.ebx = fan & 0xff;
+ return i8k_smm(®s) ? : regs.eax & 0xff;
+}
+
+/*
+ * Read the fan nominal rpm for specific fan speed.
+ */
+static int i8k_get_fan_nominal_speed(int fan, int speed)
+{
+ struct smm_regs regs = { .eax = I8K_SMM_GET_NOM_SPEED, };
+
+ regs.ebx = (fan & 0xff) | (speed << 8);
+ return i8k_smm(®s) ? : (regs.eax & 0xffff) * i8k_fan_mult;
+}
+
/*
* Set the fan speed (off, low, high). Returns the new fan status.
*/
return i8k_smm(®s) ? : i8k_get_fan_status(fan);
}
+static int i8k_get_temp_type(int sensor)
+{
+ struct smm_regs regs = { .eax = I8K_SMM_GET_TEMP_TYPE, };
+
+ regs.ebx = sensor & 0xff;
+ return i8k_smm(®s) ? : regs.eax & 0xff;
+}
+
/*
* Read the cpu temperature.
*/
-static int i8k_get_temp(int sensor)
+static int _i8k_get_temp(int sensor)
{
- struct smm_regs regs = { .eax = I8K_SMM_GET_TEMP, };
- int rc;
- int temp;
+ struct smm_regs regs = {
+ .eax = I8K_SMM_GET_TEMP,
+ .ebx = sensor & 0xff,
+ };
-#ifdef I8K_TEMPERATURE_BUG
- static int prev[4] = { I8K_MAX_TEMP+1, I8K_MAX_TEMP+1, I8K_MAX_TEMP+1, I8K_MAX_TEMP+1 };
-#endif
- regs.ebx = sensor & 0xff;
- rc = i8k_smm(®s);
- if (rc < 0)
- return rc;
+ return i8k_smm(®s) ? : regs.eax & 0xff;
+}
- temp = regs.eax & 0xff;
+static int i8k_get_temp(int sensor)
+{
+ int temp = _i8k_get_temp(sensor);
-#ifdef I8K_TEMPERATURE_BUG
/*
* Sometimes the temperature sensor returns 0x99, which is out of range.
- * In this case we return (once) the previous cached value. For example:
+ * In this case we retry (once) before returning an error.
# 1003655137 00000058 00005a4b
# 1003655138 00000099 00003a80 <--- 0x99 = 153 degrees
# 1003655139 00000054 00005c52
*/
- if (temp > I8K_MAX_TEMP) {
- temp = prev[sensor];
- prev[sensor] = I8K_MAX_TEMP+1;
- } else {
- prev[sensor] = temp;
+ if (temp == 0x99) {
+ msleep(100);
+ temp = _i8k_get_temp(sensor);
}
+ /*
+ * Return -ENODATA for all invalid temperatures.
+ *
+ * Known instances are the 0x99 value as seen above as well as
+ * 0xc1 (193), which may be returned when trying to read the GPU
+ * temperature if the system supports a GPU and it is currently
+ * turned off.
+ */
if (temp > I8K_MAX_TEMP)
- return -ERANGE;
-#endif
+ return -ENODATA;
return temp;
}
* Hwmon interface
*/
+static ssize_t i8k_hwmon_show_temp_label(struct device *dev,
+ struct device_attribute *devattr,
+ char *buf)
+{
+ static const char * const labels[] = {
+ "CPU",
+ "GPU",
+ "SODIMM",
+ "Other",
+ "Ambient",
+ "Other",
+ };
+ int index = to_sensor_dev_attr(devattr)->index;
+ int type;
+
+ type = i8k_get_temp_type(index);
+ if (type < 0)
+ return type;
+ if (type >= ARRAY_SIZE(labels))
+ type = ARRAY_SIZE(labels) - 1;
+ return sprintf(buf, "%s\n", labels[type]);
+}
+
static ssize_t i8k_hwmon_show_temp(struct device *dev,
struct device_attribute *devattr,
char *buf)
int temp;
temp = i8k_get_temp(index);
- if (temp == -ERANGE)
- return -EINVAL;
if (temp < 0)
return temp;
return sprintf(buf, "%d\n", temp * 1000);
}
+static ssize_t i8k_hwmon_show_fan_label(struct device *dev,
+ struct device_attribute *devattr,
+ char *buf)
+{
+ static const char * const labels[] = {
+ "Processor Fan",
+ "Motherboard Fan",
+ "Video Fan",
+ "Power Supply Fan",
+ "Chipset Fan",
+ "Other Fan",
+ };
+ int index = to_sensor_dev_attr(devattr)->index;
+ bool dock = false;
+ int type;
+
+ type = i8k_get_fan_type(index);
+ if (type < 0)
+ return type;
+
+ if (type & 0x10) {
+ dock = true;
+ type &= 0x0F;
+ }
+
+ if (type >= ARRAY_SIZE(labels))
+ type = (ARRAY_SIZE(labels) - 1);
+
+ return sprintf(buf, "%s%s\n", (dock ? "Docking " : ""), labels[type]);
+}
+
static ssize_t i8k_hwmon_show_fan(struct device *dev,
struct device_attribute *devattr,
char *buf)
}
static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, i8k_hwmon_show_temp, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp1_label, S_IRUGO, i8k_hwmon_show_temp_label, NULL,
+ 0);
static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, i8k_hwmon_show_temp, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp2_label, S_IRUGO, i8k_hwmon_show_temp_label, NULL,
+ 1);
static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, i8k_hwmon_show_temp, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp3_label, S_IRUGO, i8k_hwmon_show_temp_label, NULL,
+ 2);
static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, i8k_hwmon_show_temp, NULL, 3);
-static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, i8k_hwmon_show_fan, NULL,
- I8K_FAN_LEFT);
+static SENSOR_DEVICE_ATTR(temp4_label, S_IRUGO, i8k_hwmon_show_temp_label, NULL,
+ 3);
+static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, i8k_hwmon_show_fan, NULL, 0);
+static SENSOR_DEVICE_ATTR(fan1_label, S_IRUGO, i8k_hwmon_show_fan_label, NULL,
+ 0);
static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, i8k_hwmon_show_pwm,
- i8k_hwmon_set_pwm, I8K_FAN_LEFT);
+ i8k_hwmon_set_pwm, 0);
static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, i8k_hwmon_show_fan, NULL,
- I8K_FAN_RIGHT);
+ 1);
+static SENSOR_DEVICE_ATTR(fan2_label, S_IRUGO, i8k_hwmon_show_fan_label, NULL,
+ 1);
static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, i8k_hwmon_show_pwm,
- i8k_hwmon_set_pwm, I8K_FAN_RIGHT);
+ i8k_hwmon_set_pwm, 1);
static struct attribute *i8k_attrs[] = {
&sensor_dev_attr_temp1_input.dev_attr.attr, /* 0 */
- &sensor_dev_attr_temp2_input.dev_attr.attr, /* 1 */
- &sensor_dev_attr_temp3_input.dev_attr.attr, /* 2 */
- &sensor_dev_attr_temp4_input.dev_attr.attr, /* 3 */
- &sensor_dev_attr_fan1_input.dev_attr.attr, /* 4 */
- &sensor_dev_attr_pwm1.dev_attr.attr, /* 5 */
- &sensor_dev_attr_fan2_input.dev_attr.attr, /* 6 */
- &sensor_dev_attr_pwm2.dev_attr.attr, /* 7 */
+ &sensor_dev_attr_temp1_label.dev_attr.attr, /* 1 */
+ &sensor_dev_attr_temp2_input.dev_attr.attr, /* 2 */
+ &sensor_dev_attr_temp2_label.dev_attr.attr, /* 3 */
+ &sensor_dev_attr_temp3_input.dev_attr.attr, /* 4 */
+ &sensor_dev_attr_temp3_label.dev_attr.attr, /* 5 */
+ &sensor_dev_attr_temp4_input.dev_attr.attr, /* 6 */
+ &sensor_dev_attr_temp4_label.dev_attr.attr, /* 7 */
+ &sensor_dev_attr_fan1_input.dev_attr.attr, /* 8 */
+ &sensor_dev_attr_fan1_label.dev_attr.attr, /* 9 */
+ &sensor_dev_attr_pwm1.dev_attr.attr, /* 10 */
+ &sensor_dev_attr_fan2_input.dev_attr.attr, /* 11 */
+ &sensor_dev_attr_fan2_label.dev_attr.attr, /* 12 */
+ &sensor_dev_attr_pwm2.dev_attr.attr, /* 13 */
NULL
};
static umode_t i8k_is_visible(struct kobject *kobj, struct attribute *attr,
int index)
{
- if (index == 0 && !(i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP1))
+ if (index >= 0 && index <= 1 &&
+ !(i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP1))
return 0;
- if (index == 1 && !(i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP2))
+ if (index >= 2 && index <= 3 &&
+ !(i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP2))
return 0;
- if (index == 2 && !(i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP3))
+ if (index >= 4 && index <= 5 &&
+ !(i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP3))
return 0;
- if (index == 3 && !(i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP4))
+ if (index >= 6 && index <= 7 &&
+ !(i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP4))
return 0;
- if (index >= 4 && index <= 5 &&
+ if (index >= 8 && index <= 10 &&
!(i8k_hwmon_flags & I8K_HWMON_HAVE_FAN1))
return 0;
- if (index >= 6 && index <= 7 &&
+ if (index >= 11 && index <= 13 &&
!(i8k_hwmon_flags & I8K_HWMON_HAVE_FAN2))
return 0;
i8k_hwmon_flags = 0;
- /* CPU temperature attributes, if temperature reading is OK */
- err = i8k_get_temp(0);
- if (err >= 0 || err == -ERANGE)
+ /* CPU temperature attributes, if temperature type is OK */
+ err = i8k_get_temp_type(0);
+ if (err >= 0)
i8k_hwmon_flags |= I8K_HWMON_HAVE_TEMP1;
/* check for additional temperature sensors */
- err = i8k_get_temp(1);
- if (err >= 0 || err == -ERANGE)
+ err = i8k_get_temp_type(1);
+ if (err >= 0)
i8k_hwmon_flags |= I8K_HWMON_HAVE_TEMP2;
- err = i8k_get_temp(2);
- if (err >= 0 || err == -ERANGE)
+ err = i8k_get_temp_type(2);
+ if (err >= 0)
i8k_hwmon_flags |= I8K_HWMON_HAVE_TEMP3;
- err = i8k_get_temp(3);
- if (err >= 0 || err == -ERANGE)
+ err = i8k_get_temp_type(3);
+ if (err >= 0)
i8k_hwmon_flags |= I8K_HWMON_HAVE_TEMP4;
- /* Left fan attributes, if left fan is present */
- err = i8k_get_fan_status(I8K_FAN_LEFT);
+ /* First fan attributes, if fan type is OK */
+ err = i8k_get_fan_type(0);
if (err >= 0)
i8k_hwmon_flags |= I8K_HWMON_HAVE_FAN1;
- /* Right fan attributes, if right fan is present */
- err = i8k_get_fan_status(I8K_FAN_RIGHT);
+ /* Second fan attributes, if fan type is OK */
+ err = i8k_get_fan_type(1);
if (err >= 0)
i8k_hwmon_flags |= I8K_HWMON_HAVE_FAN2;
}
struct i8k_config_data {
- int fan_mult;
- int fan_max;
+ uint fan_mult;
+ uint fan_max;
};
enum i8k_configs {
DELL_LATITUDE_D520,
- DELL_LATITUDE_E6540,
DELL_PRECISION_490,
DELL_STUDIO,
- DELL_XPS_M140,
+ DELL_XPS,
};
static const struct i8k_config_data i8k_config_data[] = {
.fan_mult = 1,
.fan_max = I8K_FAN_TURBO,
},
- [DELL_LATITUDE_E6540] = {
- .fan_mult = 1,
- .fan_max = I8K_FAN_HIGH,
- },
[DELL_PRECISION_490] = {
.fan_mult = 1,
.fan_max = I8K_FAN_TURBO,
.fan_mult = 1,
.fan_max = I8K_FAN_HIGH,
},
- [DELL_XPS_M140] = {
+ [DELL_XPS] = {
.fan_mult = 1,
.fan_max = I8K_FAN_HIGH,
},
},
.driver_data = (void *)&i8k_config_data[DELL_LATITUDE_D520],
},
- {
- .ident = "Dell Latitude E6440",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "Latitude E6440"),
- },
- .driver_data = (void *)&i8k_config_data[DELL_LATITUDE_E6540],
- },
- {
- .ident = "Dell Latitude E6540",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "Latitude E6540"),
- },
- .driver_data = (void *)&i8k_config_data[DELL_LATITUDE_E6540],
- },
{
.ident = "Dell Latitude 2",
.matches = {
},
.driver_data = (void *)&i8k_config_data[DELL_STUDIO],
},
+ {
+ .ident = "Dell XPS 13",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "XPS13"),
+ },
+ .driver_data = (void *)&i8k_config_data[DELL_XPS],
+ },
{
.ident = "Dell XPS M140",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
DMI_MATCH(DMI_PRODUCT_NAME, "MXC051"),
},
- .driver_data = (void *)&i8k_config_data[DELL_XPS_M140],
+ .driver_data = (void *)&i8k_config_data[DELL_XPS],
},
{ }
};
static int __init i8k_probe(void)
{
const struct dmi_system_id *id;
+ int fan, ret;
/*
* Get DMI information
return -ENODEV;
}
- i8k_fan_mult = fan_mult;
- i8k_fan_max = fan_max ? : I8K_FAN_HIGH; /* Must not be 0 */
+ /*
+ * Set fan multiplier and maximal fan speed from dmi config
+ * Values specified in module parameters override values from dmi
+ */
id = dmi_first_match(i8k_dmi_table);
if (id && id->driver_data) {
const struct i8k_config_data *conf = id->driver_data;
-
- if (fan_mult == I8K_FAN_MULT && conf->fan_mult)
- i8k_fan_mult = conf->fan_mult;
- if (fan_max == I8K_FAN_HIGH && conf->fan_max)
- i8k_fan_max = conf->fan_max;
+ if (!fan_mult && conf->fan_mult)
+ fan_mult = conf->fan_mult;
+ if (!fan_max && conf->fan_max)
+ fan_max = conf->fan_max;
}
+
+ i8k_fan_max = fan_max ? : I8K_FAN_HIGH; /* Must not be 0 */
i8k_pwm_mult = DIV_ROUND_UP(255, i8k_fan_max);
+ if (!fan_mult) {
+ /*
+ * Autodetect fan multiplier based on nominal rpm
+ * If fan reports rpm value too high then set multiplier to 1
+ */
+ for (fan = 0; fan < 2; ++fan) {
+ ret = i8k_get_fan_nominal_speed(fan, i8k_fan_max);
+ if (ret < 0)
+ continue;
+ if (ret > I8K_FAN_MAX_RPM)
+ i8k_fan_mult = 1;
+ break;
+ }
+ } else {
+ /* Fan multiplier was specified in module param or in dmi */
+ i8k_fan_mult = fan_mult;
+ }
+
return 0;
}
#include <linux/io.h>
#include <linux/aio.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
#ifdef CONFIG_IA64
# include <linux/efi.h>
return 0;
}
-#ifdef CONFIG_DEVKMEM
static int mmap_kmem(struct file *file, struct vm_area_struct *vma)
{
unsigned long pfn;
vma->vm_pgoff = pfn;
return mmap_mem(file, vma);
}
-#endif
-#ifdef CONFIG_DEVKMEM
/*
* This function reads the *virtual* memory as seen by the kernel.
*/
*ppos = p;
return virtr + wrote ? : err;
}
-#endif
-#ifdef CONFIG_DEVPORT
static ssize_t read_port(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{
return -EFAULT;
while (count-- > 0 && i < 65536) {
char c;
+
if (__get_user(c, tmp)) {
if (tmp > buf)
break;
*ppos = i;
return tmp-buf;
}
-#endif
static ssize_t read_null(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
while (iov_iter_count(iter)) {
size_t chunk = iov_iter_count(iter), n;
+
if (chunk > PAGE_SIZE)
chunk = PAGE_SIZE; /* Just for latency reasons */
n = iov_iter_zero(chunk, iter);
#define open_mem open_port
#define open_kmem open_mem
-static const struct file_operations mem_fops = {
+static const struct file_operations __maybe_unused mem_fops = {
.llseek = memory_lseek,
.read = read_mem,
.write = write_mem,
#endif
};
-#ifdef CONFIG_DEVKMEM
-static const struct file_operations kmem_fops = {
+static const struct file_operations __maybe_unused kmem_fops = {
.llseek = memory_lseek,
.read = read_kmem,
.write = write_kmem,
.mmap_capabilities = memory_mmap_capabilities,
#endif
};
-#endif
static const struct file_operations null_fops = {
.llseek = null_lseek,
.splice_write = splice_write_null,
};
-#ifdef CONFIG_DEVPORT
-static const struct file_operations port_fops = {
+static const struct file_operations __maybe_unused port_fops = {
.llseek = memory_lseek,
.read = read_port,
.write = write_port,
.open = open_port,
};
-#endif
static const struct file_operations zero_fops = {
.llseek = zero_lseek,
const struct file_operations *fops;
fmode_t fmode;
} devlist[] = {
+#ifdef CONFIG_DEVMEM
[1] = { "mem", 0, &mem_fops, FMODE_UNSIGNED_OFFSET },
+#endif
#ifdef CONFIG_DEVKMEM
[2] = { "kmem", 0, &kmem_fops, FMODE_UNSIGNED_OFFSET },
#endif
bool multiport;
bool early = early_put_chars != NULL;
+ if (!vdev->config->get) {
+ dev_err(&vdev->dev, "%s failure: config access disabled\n",
+ __func__);
+ return -EINVAL;
+ }
+
/* Ensure to read early_put_chars now */
barrier();
if (ret)
return ret;
- drvdata->buffer_depth = etb_get_buffer_depth(drvdata);
+ drvdata->buffer_depth = etb_get_buffer_depth(drvdata);
clk_disable_unprepare(drvdata->clk);
if (drvdata->buffer_depth < 0)
.id_table = etb_ids,
};
-static int __init etb_init(void)
-{
- return amba_driver_register(&etb_driver);
-}
-module_init(etb_init);
-
-static void __exit etb_exit(void)
-{
- amba_driver_unregister(&etb_driver);
-}
-module_exit(etb_exit);
+module_amba_driver(etb_driver);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("CoreSight Embedded Trace Buffer driver");
#include "coresight-etm.h"
-#ifdef CONFIG_CORESIGHT_SOURCE_ETM_DEFAULT_ENABLE
-static int boot_enable = 1;
-#else
static int boot_enable;
-#endif
-module_param_named(
- boot_enable, boot_enable, int, S_IRUGO
-);
+module_param_named(boot_enable, boot_enable, int, S_IRUGO);
/* The number of ETM/PTM currently registered */
static int etm_count;
if (drvdata->mode & ETM_MODE_STALL) {
if (!(drvdata->etmccr & ETMCCR_FIFOFULL)) {
dev_warn(drvdata->dev, "stall mode not supported\n");
- return -EINVAL;
+ ret = -EINVAL;
+ goto err_unlock;
}
drvdata->ctrl |= ETMCR_STALL_MODE;
} else
if (drvdata->mode & ETM_MODE_TIMESTAMP) {
if (!(drvdata->etmccer & ETMCCER_TIMESTAMP)) {
dev_warn(drvdata->dev, "timestamp not supported\n");
- return -EINVAL;
+ ret = -EINVAL;
+ goto err_unlock;
}
drvdata->ctrl |= ETMCR_TIMESTAMP_EN;
} else
spin_unlock(&drvdata->spinlock);
return size;
+
+err_unlock:
+ spin_unlock(&drvdata->spinlock);
+ return ret;
}
static DEVICE_ATTR_RW(mode);
static void etm_init_default_data(struct etm_drvdata *drvdata)
{
- static int etm3x_traceid;
+ /*
+ * A trace ID of value 0 is invalid, so let's start at some
+ * random value that fits in 7 bits and will be just as good.
+ */
+ static int etm3x_traceid = 0x10;
u32 flags = (1 << 0 | /* instruction execute*/
3 << 3 | /* ARM instruction */
.id_table = funnel_ids,
};
-static int __init funnel_init(void)
-{
- return amba_driver_register(&funnel_driver);
-}
-module_init(funnel_init);
-
-static void __exit funnel_exit(void)
-{
- amba_driver_unregister(&funnel_driver);
-}
-module_exit(funnel_exit);
+module_amba_driver(funnel_driver);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("CoreSight Funnel driver");
extern int etm_writel_cp14(u32 off, u32 val);
#else
static inline int etm_readl_cp14(u32 off, unsigned int *val) { return 0; }
-static inline int etm_writel_cp14(u32 val, u32 off) { return 0; }
+static inline int etm_writel_cp14(u32 off, u32 val) { return 0; }
#endif
#endif
return -ENOMEM;
desc->type = CORESIGHT_DEV_TYPE_LINK;
- desc->subtype.sink_subtype = CORESIGHT_DEV_SUBTYPE_LINK_SPLIT;
+ desc->subtype.link_subtype = CORESIGHT_DEV_SUBTYPE_LINK_SPLIT;
desc->ops = &replicator_cs_ops;
desc->pdata = pdev->dev.platform_data;
desc->dev = &pdev->dev;
.id_table = tmc_ids,
};
-static int __init tmc_init(void)
-{
- return amba_driver_register(&tmc_driver);
-}
-module_init(tmc_init);
-
-static void __exit tmc_exit(void)
-{
- amba_driver_unregister(&tmc_driver);
-}
-module_exit(tmc_exit);
+module_amba_driver(tmc_driver);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("CoreSight Trace Memory Controller driver");
.id_table = tpiu_ids,
};
-static int __init tpiu_init(void)
-{
- return amba_driver_register(&tpiu_driver);
-}
-module_init(tpiu_init);
-
-static void __exit tpiu_exit(void)
-{
- amba_driver_unregister(&tpiu_driver);
-}
-module_exit(tpiu_exit);
+module_amba_driver(tpiu_driver);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("CoreSight Trace Port Interface Unit driver");
* Circle throuch all the connection of that component. If we find
* an orphan connection whose name matches @csdev, link it.
*/
- for (i = 0; i < i_csdev->nr_outport; i++) {
+ for (i = 0; i < i_csdev->nr_outport; i++) {
conn = &i_csdev->conns[i];
/* We have found at least one orphan connection */
if (conn->child_dev == NULL) {
/* Does it match this newly added device? */
- if (!strcmp(dev_name(&csdev->dev), conn->child_name))
+ if (!strcmp(dev_name(&csdev->dev), conn->child_name)) {
conn->child_dev = csdev;
- } else {
- /* Too bad, this component still has an orphan */
- still_orphan = true;
+ } else {
+ /* This component still has an orphan */
+ still_orphan = true;
+ }
}
}
if (!pdata->outports)
return -ENOMEM;
- /* Children connected to this component via @outport */
+ /* Children connected to this component via @outports */
pdata->child_names = devm_kzalloc(dev, pdata->nr_outport *
sizeof(*pdata->child_names),
GFP_KERNEL);
struct coresight_platform_data *pdata;
struct of_endpoint endpoint, rendpoint;
struct device *rdev;
- struct device_node *cpu;
+ struct device_node *dn;
struct device_node *ep = NULL;
struct device_node *rparent = NULL;
struct device_node *rport = NULL;
if (!pdata)
return ERR_PTR(-ENOMEM);
- /* Use device name as debugfs handle */
+ /* Use device name as sysfs handle */
pdata->name = dev_name(dev);
/* Get the number of input and output port for this component */
continue;
rdev = of_coresight_get_endpoint_device(rparent);
- if (!dev)
+ if (!rdev)
continue;
pdata->child_names[i] = dev_name(rdev);
/* Affinity defaults to CPU0 */
pdata->cpu = 0;
- cpu = of_parse_phandle(node, "cpu", 0);
- if (cpu) {
- const u32 *mpidr;
+ dn = of_parse_phandle(node, "cpu", 0);
+ if (dn) {
+ const u32 *cell;
int len, index;
+ u64 hwid;
- mpidr = of_get_property(cpu, "reg", &len);
- if (mpidr && len == 4) {
- index = get_logical_index(be32_to_cpup(mpidr));
+ cell = of_get_property(dn, "reg", &len);
+ if (cell) {
+ hwid = of_read_number(cell, of_n_addr_cells(dn));
+ index = get_logical_index(hwid);
if (index != -EINVAL)
pdata->cpu = index;
}
free_irq(data->irq, data);
cancel_work_sync(&data->handler.work);
+ iio_channel_release(data->chan);
return 0;
}
#include <linux/of.h>
#include <linux/slab.h>
#include <linux/sysfs.h>
-#include <linux/of.h>
/*
* extcon_cable_name suggests the standard cable names for commonly used
return IRQ_HANDLED;
}
-static struct regmap_config max77693_muic_regmap_config = {
+static const struct regmap_config max77693_muic_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
};
unsigned long flags;
int ret, t, err = 0;
- spin_lock_irqsave(&newchannel->sc_lock, flags);
+ spin_lock_irqsave(&newchannel->lock, flags);
if (newchannel->state == CHANNEL_OPEN_STATE) {
newchannel->state = CHANNEL_OPENING_STATE;
} else {
- spin_unlock_irqrestore(&newchannel->sc_lock, flags);
+ spin_unlock_irqrestore(&newchannel->lock, flags);
return -EINVAL;
}
- spin_unlock_irqrestore(&newchannel->sc_lock, flags);
+ spin_unlock_irqrestore(&newchannel->lock, flags);
newchannel->onchannel_callback = onchannelcallback;
newchannel->channel_callback_context = context;
unsigned long flags;
int ret = 0;
- next_gpadl_handle = atomic_read(&vmbus_connection.next_gpadl_handle);
- atomic_inc(&vmbus_connection.next_gpadl_handle);
+ next_gpadl_handle =
+ (atomic_inc_return(&vmbus_connection.next_gpadl_handle) - 1);
ret = create_gpadl_header(kbuffer, size, &msginfo, &msgcount);
if (ret)
}
EXPORT_SYMBOL_GPL(vmbus_sendpacket_pagebuffer);
+/*
+ * vmbus_sendpacket_multipagebuffer - Send a multi-page buffer packet
+ * using a GPADL Direct packet type.
+ * The buffer includes the vmbus descriptor.
+ */
+int vmbus_sendpacket_mpb_desc(struct vmbus_channel *channel,
+ struct vmbus_packet_mpb_array *desc,
+ u32 desc_size,
+ void *buffer, u32 bufferlen, u64 requestid)
+{
+ int ret;
+ u32 packetlen;
+ u32 packetlen_aligned;
+ struct kvec bufferlist[3];
+ u64 aligned_data = 0;
+ bool signal = false;
+
+ packetlen = desc_size + bufferlen;
+ packetlen_aligned = ALIGN(packetlen, sizeof(u64));
+
+ /* Setup the descriptor */
+ desc->type = VM_PKT_DATA_USING_GPA_DIRECT;
+ desc->flags = VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED;
+ desc->dataoffset8 = desc_size >> 3; /* in 8-bytes grandularity */
+ desc->length8 = (u16)(packetlen_aligned >> 3);
+ desc->transactionid = requestid;
+ desc->rangecount = 1;
+
+ bufferlist[0].iov_base = desc;
+ bufferlist[0].iov_len = desc_size;
+ bufferlist[1].iov_base = buffer;
+ bufferlist[1].iov_len = bufferlen;
+ bufferlist[2].iov_base = &aligned_data;
+ bufferlist[2].iov_len = (packetlen_aligned - packetlen);
+
+ ret = hv_ringbuffer_write(&channel->outbound, bufferlist, 3, &signal);
+
+ if (ret == 0 && signal)
+ vmbus_setevent(channel);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(vmbus_sendpacket_mpb_desc);
+
/*
* vmbus_sendpacket_multipagebuffer - Send a multi-page buffer packet
* using a GPADL Direct packet type.
return NULL;
spin_lock_init(&channel->inbound_lock);
- spin_lock_init(&channel->sc_lock);
+ spin_lock_init(&channel->lock);
INIT_LIST_HEAD(&channel->sc_list);
INIT_LIST_HEAD(&channel->percpu_list);
spin_unlock_irqrestore(&vmbus_connection.channel_lock, flags);
} else {
primary_channel = channel->primary_channel;
- spin_lock_irqsave(&primary_channel->sc_lock, flags);
+ spin_lock_irqsave(&primary_channel->lock, flags);
list_del(&channel->sc_list);
- spin_unlock_irqrestore(&primary_channel->sc_lock, flags);
+ spin_unlock_irqrestore(&primary_channel->lock, flags);
}
free_channel(channel);
}
int ret;
unsigned long flags;
- /* The next possible work is rescind handling */
- INIT_WORK(&newchannel->work, vmbus_process_rescind_offer);
-
/* Make sure this is a new offer */
spin_lock_irqsave(&vmbus_connection.channel_lock, flags);
* Process the sub-channel.
*/
newchannel->primary_channel = channel;
- spin_lock_irqsave(&channel->sc_lock, flags);
+ spin_lock_irqsave(&channel->lock, flags);
list_add_tail(&newchannel->sc_list, &channel->sc_list);
- spin_unlock_irqrestore(&channel->sc_lock, flags);
+ spin_unlock_irqrestore(&channel->lock, flags);
if (newchannel->target_cpu != get_cpu()) {
put_cpu();
if (channel->sc_creation_callback != NULL)
channel->sc_creation_callback(newchannel);
- return;
+ goto done_init_rescind;
}
- free_channel(newchannel);
- return;
+ goto err_free_chan;
}
/*
&newchannel->offermsg.offer.if_type,
&newchannel->offermsg.offer.if_instance,
newchannel);
+ if (!newchannel->device_obj)
+ goto err_free_chan;
/*
* Add the new device to the bus. This will kick off device-driver
list_del(&newchannel->listentry);
spin_unlock_irqrestore(&vmbus_connection.channel_lock, flags);
kfree(newchannel->device_obj);
-
- free_channel(newchannel);
+ goto err_free_chan;
}
+done_init_rescind:
+ spin_lock_irqsave(&newchannel->lock, flags);
+ /* The next possible work is rescind handling */
+ INIT_WORK(&newchannel->work, vmbus_process_rescind_offer);
+ /* Check if rescind offer was already received */
+ if (newchannel->rescind)
+ queue_work(newchannel->controlwq, &newchannel->work);
+ spin_unlock_irqrestore(&newchannel->lock, flags);
+ return;
+err_free_chan:
+ free_channel(newchannel);
}
enum {
{
struct vmbus_channel_rescind_offer *rescind;
struct vmbus_channel *channel;
+ unsigned long flags;
rescind = (struct vmbus_channel_rescind_offer *)hdr;
channel = relid2channel(rescind->child_relid);
/* Just return here, no channel found */
return;
+ spin_lock_irqsave(&channel->lock, flags);
channel->rescind = true;
+ /*
+ * channel->work.func != vmbus_process_rescind_offer means we are still
+ * processing offer request and the rescind offer processing should be
+ * postponed. It will be done at the very end of vmbus_process_offer()
+ * as rescind flag is being checked there.
+ */
+ if (channel->work.func == vmbus_process_rescind_offer)
+ /* work is initialized for vmbus_process_rescind_offer() from
+ * vmbus_process_offer() where the channel got created */
+ queue_work(channel->controlwq, &channel->work);
- /* work is initialized for vmbus_process_rescind_offer() from
- * vmbus_process_offer() where the channel got created */
- queue_work(channel->controlwq, &channel->work);
+ spin_unlock_irqrestore(&channel->lock, flags);
}
/*
struct vmbus_channel *vmbus_get_outgoing_channel(struct vmbus_channel *primary)
{
struct list_head *cur, *tmp;
- int cur_cpu = hv_context.vp_index[smp_processor_id()];
+ int cur_cpu;
struct vmbus_channel *cur_channel;
struct vmbus_channel *outgoing_channel = primary;
int cpu_distance, new_cpu_distance;
if (list_empty(&primary->sc_list))
return outgoing_channel;
+ cur_cpu = hv_context.vp_index[get_cpu()];
+ put_cpu();
list_for_each_safe(cur, tmp, &primary->sc_list) {
cur_channel = list_entry(cur, struct vmbus_channel, sc_list);
if (cur_channel->state != CHANNEL_OPENED_STATE)
msg->interrupt_page = virt_to_phys(vmbus_connection.int_page);
msg->monitor_page1 = virt_to_phys(vmbus_connection.monitor_pages[0]);
msg->monitor_page2 = virt_to_phys(vmbus_connection.monitor_pages[1]);
- if (version == VERSION_WIN8_1)
- msg->target_vcpu = hv_context.vp_index[smp_processor_id()];
+ if (version == VERSION_WIN8_1) {
+ msg->target_vcpu = hv_context.vp_index[get_cpu()];
+ put_cpu();
+ }
/*
* Add to list before we send the request since we may
#include <linux/hyperv.h>
#include <linux/version.h>
#include <linux/interrupt.h>
+#include <linux/clockchips.h>
#include <asm/hyperv.h>
+#include <asm/mshyperv.h>
#include "hyperv_vmbus.h"
/* The one and only */
.hypercall_page = NULL,
};
+#define HV_TIMER_FREQUENCY (10 * 1000 * 1000) /* 100ns period */
+#define HV_MAX_MAX_DELTA_TICKS 0xffffffff
+#define HV_MIN_DELTA_TICKS 1
+
/*
* query_hypervisor_info - Get version info of the windows hypervisor
*/
sizeof(int) * NR_CPUS);
memset(hv_context.event_dpc, 0,
sizeof(void *) * NR_CPUS);
+ memset(hv_context.clk_evt, 0,
+ sizeof(void *) * NR_CPUS);
max_leaf = query_hypervisor_info();
return status;
}
+static int hv_ce_set_next_event(unsigned long delta,
+ struct clock_event_device *evt)
+{
+ cycle_t current_tick;
+
+ WARN_ON(evt->mode != CLOCK_EVT_MODE_ONESHOT);
+
+ rdmsrl(HV_X64_MSR_TIME_REF_COUNT, current_tick);
+ current_tick += delta;
+ wrmsrl(HV_X64_MSR_STIMER0_COUNT, current_tick);
+ return 0;
+}
+
+static void hv_ce_setmode(enum clock_event_mode mode,
+ 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;
+ }
+}
+
+static void hv_init_clockevent_device(struct clock_event_device *dev, int cpu)
+{
+ dev->name = "Hyper-V clockevent";
+ dev->features = CLOCK_EVT_FEAT_ONESHOT;
+ dev->cpumask = cpumask_of(cpu);
+ dev->rating = 1000;
+ dev->owner = THIS_MODULE;
+
+ dev->set_mode = hv_ce_setmode;
+ dev->set_next_event = hv_ce_set_next_event;
+}
+
int hv_synic_alloc(void)
{
size_t size = sizeof(struct tasklet_struct);
+ size_t ced_size = sizeof(struct clock_event_device);
int cpu;
for_each_online_cpu(cpu) {
}
tasklet_init(hv_context.event_dpc[cpu], vmbus_on_event, cpu);
+ hv_context.clk_evt[cpu] = kzalloc(ced_size, GFP_ATOMIC);
+ if (hv_context.clk_evt[cpu] == NULL) {
+ 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] =
(void *)get_zeroed_page(GFP_ATOMIC);
static void hv_synic_free_cpu(int cpu)
{
kfree(hv_context.event_dpc[cpu]);
+ kfree(hv_context.clk_evt[cpu]);
if (hv_context.synic_event_page[cpu])
free_page((unsigned long)hv_context.synic_event_page[cpu]);
if (hv_context.synic_message_page[cpu])
hv_context.vp_index[cpu] = (u32)vp_index;
INIT_LIST_HEAD(&hv_context.percpu_list[cpu]);
+
+ /*
+ * Register the per-cpu clockevent source.
+ */
+ if (ms_hyperv.features & HV_X64_MSR_SYNTIMER_AVAILABLE)
+ clockevents_config_and_register(hv_context.clk_evt[cpu],
+ HV_TIMER_FREQUENCY,
+ HV_MIN_DELTA_TICKS,
+ HV_MAX_MAX_DELTA_TICKS);
return;
}
*/
struct task_struct *thread;
+ struct mutex ha_region_mutex;
+ struct completion waiter_event;
+
/*
* A list of hot-add regions.
*/
static struct hv_dynmem_device dm_device;
static void post_status(struct hv_dynmem_device *dm);
+
#ifdef CONFIG_MEMORY_HOTPLUG
+static void acquire_region_mutex(bool trylock)
+{
+ if (trylock) {
+ reinit_completion(&dm_device.waiter_event);
+ while (!mutex_trylock(&dm_device.ha_region_mutex))
+ wait_for_completion(&dm_device.waiter_event);
+ } else {
+ mutex_lock(&dm_device.ha_region_mutex);
+ }
+}
+
+static void release_region_mutex(bool trylock)
+{
+ if (trylock) {
+ mutex_unlock(&dm_device.ha_region_mutex);
+ } else {
+ mutex_unlock(&dm_device.ha_region_mutex);
+ complete(&dm_device.waiter_event);
+ }
+}
+
+static int hv_memory_notifier(struct notifier_block *nb, unsigned long val,
+ void *v)
+{
+ switch (val) {
+ case MEM_GOING_ONLINE:
+ acquire_region_mutex(true);
+ break;
+
+ case MEM_ONLINE:
+ case MEM_CANCEL_ONLINE:
+ release_region_mutex(true);
+ if (dm_device.ha_waiting) {
+ dm_device.ha_waiting = false;
+ complete(&dm_device.ol_waitevent);
+ }
+ break;
+
+ case MEM_GOING_OFFLINE:
+ case MEM_OFFLINE:
+ case MEM_CANCEL_OFFLINE:
+ break;
+ }
+ return NOTIFY_OK;
+}
+
+static struct notifier_block hv_memory_nb = {
+ .notifier_call = hv_memory_notifier,
+ .priority = 0
+};
+
static void hv_bring_pgs_online(unsigned long start_pfn, unsigned long size)
{
init_completion(&dm_device.ol_waitevent);
dm_device.ha_waiting = true;
+ release_region_mutex(false);
nid = memory_add_physaddr_to_nid(PFN_PHYS(start_pfn));
ret = add_memory(nid, PFN_PHYS((start_pfn)),
(HA_CHUNK << PAGE_SHIFT));
* have not been "onlined" within the allowed time.
*/
wait_for_completion_timeout(&dm_device.ol_waitevent, 5*HZ);
+ acquire_region_mutex(false);
post_status(&dm_device);
}
unsigned long cur_start_pgp;
unsigned long cur_end_pgp;
- if (dm_device.ha_waiting) {
- dm_device.ha_waiting = false;
- complete(&dm_device.ol_waitevent);
- }
-
list_for_each(cur, &dm_device.ha_region_list) {
has = list_entry(cur, struct hv_hotadd_state, list);
cur_start_pgp = (unsigned long)
resp.hdr.size = sizeof(struct dm_hot_add_response);
#ifdef CONFIG_MEMORY_HOTPLUG
+ acquire_region_mutex(false);
pg_start = dm->ha_wrk.ha_page_range.finfo.start_page;
pfn_cnt = dm->ha_wrk.ha_page_range.finfo.page_cnt;
if (do_hot_add)
resp.page_count = process_hot_add(pg_start, pfn_cnt,
rg_start, rg_sz);
+ release_region_mutex(false);
#endif
/*
* The result field of the response structure has the
* 128 72 (1/2)
* 512 168 (1/4)
* 2048 360 (1/8)
- * 8192 552 (1/32)
- * 32768 1320
- * 131072 4392
+ * 8192 768 (1/16)
+ * 32768 1536 (1/32)
*/
if (totalram_pages < MB2PAGES(128))
min_pages = MB2PAGES(8) + (totalram_pages >> 1);
min_pages = MB2PAGES(40) + (totalram_pages >> 2);
else if (totalram_pages < MB2PAGES(2048))
min_pages = MB2PAGES(104) + (totalram_pages >> 3);
+ else if (totalram_pages < MB2PAGES(8192))
+ min_pages = MB2PAGES(256) + (totalram_pages >> 4);
else
- min_pages = MB2PAGES(296) + (totalram_pages >> 5);
+ min_pages = MB2PAGES(512) + (totalram_pages >> 5);
#undef MB2PAGES
return min_pages;
}
for (i = 0; i < range_count; i++) {
free_balloon_pages(dm, &range_array[i]);
- post_status(&dm_device);
+ complete(&dm_device.config_event);
}
if (req->more_pages == 1)
static int dm_thread_func(void *dm_dev)
{
struct hv_dynmem_device *dm = dm_dev;
- int t;
while (!kthread_should_stop()) {
- t = wait_for_completion_interruptible_timeout(
+ wait_for_completion_interruptible_timeout(
&dm_device.config_event, 1*HZ);
/*
* The host expects us to post information on the memory
* pressure every second.
*/
-
- if (t == 0)
- post_status(dm);
-
+ reinit_completion(&dm_device.config_event);
+ post_status(dm);
}
return 0;
dm_device.next_version = DYNMEM_PROTOCOL_VERSION_WIN7;
init_completion(&dm_device.host_event);
init_completion(&dm_device.config_event);
+ init_completion(&dm_device.waiter_event);
INIT_LIST_HEAD(&dm_device.ha_region_list);
+ mutex_init(&dm_device.ha_region_mutex);
INIT_WORK(&dm_device.balloon_wrk.wrk, balloon_up);
INIT_WORK(&dm_device.ha_wrk.wrk, hot_add_req);
dm_device.host_specified_ha_region = false;
#ifdef CONFIG_MEMORY_HOTPLUG
set_online_page_callback(&hv_online_page);
+ register_memory_notifier(&hv_memory_nb);
#endif
hv_set_drvdata(dev, &dm_device);
kfree(send_buffer);
#ifdef CONFIG_MEMORY_HOTPLUG
restore_online_page_callback(&hv_online_page);
+ unregister_memory_notifier(&hv_memory_nb);
#endif
list_for_each_safe(cur, tmp, &dm->ha_region_list) {
has = list_entry(cur, struct hv_hotadd_state, list);
* process the pending transaction.
*/
fcopy_respond_to_host(HV_E_FAIL);
+
+ /* In the case the user-space daemon crashes, hangs or is killed, we
+ * need to down the semaphore, otherwise, after the daemon starts next
+ * time, the obsolete data in fcopy_transaction.message or
+ * fcopy_transaction.fcopy_msg will be used immediately.
+ *
+ * NOTE: fcopy_read() happens to get the semaphore (very rare)? We're
+ * still OK, because we've reported the failure to the host.
+ */
+ if (down_trylock(&fcopy_transaction.read_sema))
+ ;
+
}
static int fcopy_handle_handshake(u32 version)
return 0;
}
+/* XXX: there are still some tricky corner cases, e.g.,
+ * 1) In a SMP guest, when fcopy_release() runs between
+ * schedule_delayed_work() and fcopy_send_data(), there is
+ * still a chance an obsolete message will be queued.
+ *
+ * 2) When the fcopy daemon is running, if we unload the driver,
+ * we'll notice a kernel oops when we kill the daemon later.
+ */
static int fcopy_release(struct inode *inode, struct file *f)
{
/*
*/
in_hand_shake = true;
opened = false;
+
+ if (cancel_delayed_work_sync(&fcopy_work)) {
+ /* We haven't up()-ed the semaphore(very rare)? */
+ if (down_trylock(&fcopy_transaction.read_sema))
+ ;
+ fcopy_respond_to_host(HV_E_FAIL);
+ }
return 0;
}
};
};
+/*
+ * Timer configuration register.
+ */
+union hv_timer_config {
+ u64 as_uint64;
+ struct {
+ u64 enable:1;
+ u64 periodic:1;
+ u64 lazy:1;
+ u64 auto_enable:1;
+ u64 reserved_z0:12;
+ u64 sintx:4;
+ u64 reserved_z1:44;
+ };
+};
+
+
/* Define timer message payload structure. */
struct hv_timer_message_payload {
u32 timer_index;
* buffer to post messages to the host.
*/
void *post_msg_page[NR_CPUS];
+ /*
+ * Support PV clockevent device.
+ */
+ struct clock_event_device *clk_evt[NR_CPUS];
};
extern struct hv_context hv_context;
#include <linux/completion.h>
#include <linux/hyperv.h>
#include <linux/kernel_stat.h>
+#include <linux/clockchips.h>
#include <asm/hyperv.h>
#include <asm/hypervisor.h>
#include <asm/mshyperv.h>
kfree(ctx);
}
+static void hv_process_timer_expiration(struct hv_message *msg, int cpu)
+{
+ struct clock_event_device *dev = hv_context.clk_evt[cpu];
+
+ if (dev->event_handler)
+ dev->event_handler(dev);
+
+ msg->header.message_type = HVMSG_NONE;
+
+ /*
+ * Make sure the write to MessageType (ie set to
+ * HVMSG_NONE) happens before we read the
+ * MessagePending and EOMing. Otherwise, the EOMing
+ * will not deliver any more messages since there is
+ * no empty slot
+ */
+ mb();
+
+ if (msg->header.message_flags.msg_pending) {
+ /*
+ * This will cause message queue rescan to
+ * possibly deliver another msg from the
+ * hypervisor
+ */
+ wrmsrl(HV_X64_MSR_EOM, 0);
+ }
+}
+
static void vmbus_on_msg_dpc(unsigned long data)
{
int cpu = smp_processor_id();
msg = (struct hv_message *)page_addr + VMBUS_MESSAGE_SINT;
/* Check if there are actual msgs to be processed */
- if (msg->header.message_type != HVMSG_NONE)
- tasklet_schedule(&msg_dpc);
+ if (msg->header.message_type != HVMSG_NONE) {
+ if (msg->header.message_type == HVMSG_TIMER_EXPIRED)
+ hv_process_timer_expiration(msg, cpu);
+ else
+ tasklet_schedule(&msg_dpc);
+ }
}
/*
priv->mapbase = pci_resource_start(pdev, 0);
if (!priv->mapbase) {
dev_err(&pdev->dev, "No PCI resource\n");
- goto err_start;
+ goto out_disable;
}
res = request_mem_region(priv->mapbase, CHAM_HEADER_SIZE,
if (IS_ERR(res)) {
dev_err(&pdev->dev, "Failed to request PCI memory\n");
ret = PTR_ERR(res);
- goto err_start;
+ goto out_disable;
}
priv->base = ioremap(priv->mapbase, CHAM_HEADER_SIZE);
if (!priv->base) {
dev_err(&pdev->dev, "Cannot ioremap\n");
ret = -ENOMEM;
- goto err_ioremap;
+ goto out_release;
}
flags = pci_resource_flags(pdev, 0);
ret = -ENOTSUPP;
dev_err(&pdev->dev,
"IO mapped PCI devices are not supported\n");
- goto err_ioremap;
+ goto out_release;
}
pci_set_drvdata(pdev, priv);
priv->bus = mcb_alloc_bus(&pdev->dev);
if (IS_ERR(priv->bus)) {
ret = PTR_ERR(priv->bus);
- goto err_drvdata;
+ goto out_iounmap;
}
priv->bus->get_irq = mcb_pci_get_irq;
ret = chameleon_parse_cells(priv->bus, priv->mapbase, priv->base);
if (ret < 0)
- goto err_drvdata;
+ goto out_iounmap;
num_cells = ret;
dev_dbg(&pdev->dev, "Found %d cells\n", num_cells);
return 0;
-err_drvdata:
+out_iounmap:
iounmap(priv->base);
-err_ioremap:
+out_release:
pci_release_region(pdev, 0);
-err_start:
+out_disable:
pci_disable_device(pdev);
return ret;
}
static int write8(void *client, u8 val)
{
u8 data = val;
+
return spi_write(client, &data, 1);
}
static int write16(void *client, u8 reg, u8 val)
{
u8 data[2] = {reg, val};
+
return spi_write(client, data, 2);
}
static int write24(void *client, u8 reg, u16 val)
{
u8 data[3] = {reg, val >> 8, val};
+
return spi_write(client, data, 3);
}
{
int ret;
u8 data;
+
ret = spi_read(client, &data, 1);
if (ret < 0)
return ret;
{
int value;
unsigned ctrl = 0;
+
switch (dpot->uid) {
case DPOT_UID(AD5246_ID):
case DPOT_UID(AD5247_ID):
case DPOT_UID(AD5246_ID):
case DPOT_UID(AD5247_ID):
return dpot_write_d8(dpot, value);
- break;
case DPOT_UID(AD5245_ID):
case DPOT_UID(AD5241_ID):
ctrl = ((reg & DPOT_RDAC_MASK) == DPOT_RDAC0) ?
0 : DPOT_AD5282_RDAC_AB;
return dpot_write_r8d8(dpot, ctrl, value);
- break;
case DPOT_UID(AD5171_ID):
case DPOT_UID(AD5273_ID):
if (reg & DPOT_ADDR_OTP) {
ctrl = DPOT_AD5273_FUSE;
}
return dpot_write_r8d8(dpot, ctrl, value);
- break;
case DPOT_UID(AD5172_ID):
case DPOT_UID(AD5173_ID):
ctrl = ((reg & DPOT_RDAC_MASK) == DPOT_RDAC0) ?
ctrl |= DPOT_AD5170_2_3_FUSE;
}
return dpot_write_r8d8(dpot, ctrl, value);
- break;
case DPOT_UID(AD5170_ID):
if (reg & DPOT_ADDR_OTP) {
tmp = dpot_read_r8d16(dpot, tmp);
ctrl = DPOT_AD5170_2_3_FUSE;
}
return dpot_write_r8d8(dpot, ctrl, value);
- break;
case DPOT_UID(AD5272_ID):
case DPOT_UID(AD5274_ID):
dpot_write_r8d8(dpot, DPOT_AD5270_1_2_4_CTRLREG << 2,
return dpot_write_r8d8(dpot, (DPOT_AD5270_1_2_4_RDAC << 2) |
(value >> 8), value & 0xFF);
- break;
default:
if (reg & DPOT_ADDR_CMD)
return dpot_write_d8(dpot, reg);
#include <linux/semaphore.h>
#include <linux/uaccess.h>
#include <linux/io.h>
-#include <linux/version.h>
#include <linux/debugfs.h>
#include <linux/slab.h>
* debugging, please also see the debugfs interfaces of this driver.
*/
-#include <linux/version.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/module.h>
{
union ioc4_int_out int_out;
union ioc4_gpcr gpcr;
- unsigned int state, last_state = 1;
+ unsigned int state, last_state;
uint64_t start, end, period;
- unsigned int count = 0;
+ unsigned int count;
/* Enable output */
gpcr.raw = 0;
mmiowb();
/* Check square wave period averaged over some number of cycles */
- do {
- int_out.raw = readl(&idd->idd_misc_regs->int_out.raw);
- state = int_out.fields.int_out;
- if (!last_state && state) {
- count++;
- if (count == IOC4_CALIBRATE_END) {
- end = ktime_get_ns();
- break;
- } else if (count == IOC4_CALIBRATE_DISCARD)
- start = ktime_get_ns();
- }
- last_state = state;
- } while (1);
+ start = ktime_get_ns();
+ state = 1; /* make sure the first read isn't a rising edge */
+ for (count = 0; count <= IOC4_CALIBRATE_END; count++) {
+ do { /* wait for a rising edge */
+ last_state = state;
+ int_out.raw = readl(&idd->idd_misc_regs->int_out.raw);
+ state = int_out.fields.int_out;
+ } while (last_state || !state);
+
+ /* discard the first few cycles */
+ if (count == IOC4_CALIBRATE_DISCARD)
+ start = ktime_get_ns();
+ }
+ end = ktime_get_ns();
/* Calculation rearranged to preserve intermediate precision.
* Logically:
/* allocate storage for ME message buffer */
msg_buf = kcalloc(dev->iamthif_mtu,
sizeof(unsigned char), GFP_KERNEL);
- if (!msg_buf)
- return -ENOMEM;
+ if (!msg_buf) {
+ ret = -ENOMEM;
+ goto out;
+ }
dev->iamthif_msg_buf = msg_buf;
ret = mei_cl_link(cl, MEI_IAMTHIF_HOST_CLIENT_ID);
-
if (ret < 0) {
- dev_err(dev->dev,
- "amthif: failed link client %d\n", ret);
- return ret;
+ dev_err(dev->dev, "amthif: failed cl_link %d\n", ret);
+ goto out;
}
ret = mei_cl_connect(cl, NULL);
dev->iamthif_state = MEI_IAMTHIF_IDLE;
+out:
+ mei_me_cl_put(me_cl);
return ret;
}
}
EXPORT_SYMBOL_GPL(mei_cl_driver_unregister);
-static int ___mei_cl_send(struct mei_cl *cl, u8 *buf, size_t length,
+static ssize_t ___mei_cl_send(struct mei_cl *cl, u8 *buf, size_t length,
bool blocking)
{
struct mei_device *dev;
- struct mei_me_client *me_cl;
- struct mei_cl_cb *cb;
- int rets;
+ struct mei_me_client *me_cl = NULL;
+ struct mei_cl_cb *cb = NULL;
+ ssize_t rets;
if (WARN_ON(!cl || !cl->dev))
return -ENODEV;
dev = cl->dev;
- if (cl->state != MEI_FILE_CONNECTED)
- return -ENODEV;
+ mutex_lock(&dev->device_lock);
+ if (cl->state != MEI_FILE_CONNECTED) {
+ rets = -ENODEV;
+ goto out;
+ }
/* Check if we have an ME client device */
me_cl = mei_me_cl_by_uuid_id(dev, &cl->cl_uuid, cl->me_client_id);
- if (!me_cl)
- return -ENOTTY;
+ if (!me_cl) {
+ rets = -ENOTTY;
+ goto out;
+ }
- if (length > me_cl->props.max_msg_length)
- return -EFBIG;
+ if (length > me_cl->props.max_msg_length) {
+ rets = -EFBIG;
+ goto out;
+ }
cb = mei_io_cb_init(cl, NULL);
- if (!cb)
- return -ENOMEM;
+ if (!cb) {
+ rets = -ENOMEM;
+ goto out;
+ }
rets = mei_io_cb_alloc_req_buf(cb, length);
- if (rets < 0) {
- mei_io_cb_free(cb);
- return rets;
- }
+ if (rets < 0)
+ goto out;
memcpy(cb->request_buffer.data, buf, length);
- mutex_lock(&dev->device_lock);
-
rets = mei_cl_write(cl, cb, blocking);
+out:
+ mei_me_cl_put(me_cl);
mutex_unlock(&dev->device_lock);
if (rets < 0)
mei_io_cb_free(cb);
return rets;
}
-int __mei_cl_recv(struct mei_cl *cl, u8 *buf, size_t length)
+ssize_t __mei_cl_recv(struct mei_cl *cl, u8 *buf, size_t length)
{
struct mei_device *dev;
struct mei_cl_cb *cb;
size_t r_length;
- int err;
+ ssize_t rets;
if (WARN_ON(!cl || !cl->dev))
return -ENODEV;
mutex_lock(&dev->device_lock);
if (!cl->read_cb) {
- err = mei_cl_read_start(cl, length);
- if (err < 0) {
- mutex_unlock(&dev->device_lock);
- return err;
- }
+ rets = mei_cl_read_start(cl, length);
+ if (rets < 0)
+ goto out;
}
if (cl->reading_state != MEI_READ_COMPLETE &&
cb = cl->read_cb;
if (cl->reading_state != MEI_READ_COMPLETE) {
- r_length = 0;
+ rets = 0;
goto out;
}
r_length = min_t(size_t, length, cb->buf_idx);
-
memcpy(buf, cb->response_buffer.data, r_length);
+ rets = r_length;
mei_io_cb_free(cb);
cl->reading_state = MEI_IDLE;
out:
mutex_unlock(&dev->device_lock);
- return r_length;
+ return rets;
}
-inline int __mei_cl_async_send(struct mei_cl *cl, u8 *buf, size_t length)
+inline ssize_t __mei_cl_async_send(struct mei_cl *cl, u8 *buf, size_t length)
{
return ___mei_cl_send(cl, buf, length, 0);
}
-inline int __mei_cl_send(struct mei_cl *cl, u8 *buf, size_t length)
+inline ssize_t __mei_cl_send(struct mei_cl *cl, u8 *buf, size_t length)
{
return ___mei_cl_send(cl, buf, length, 1);
}
-int mei_cl_send(struct mei_cl_device *device, u8 *buf, size_t length)
+ssize_t mei_cl_send(struct mei_cl_device *device, u8 *buf, size_t length)
{
struct mei_cl *cl = device->cl;
}
EXPORT_SYMBOL_GPL(mei_cl_send);
-int mei_cl_recv(struct mei_cl_device *device, u8 *buf, size_t length)
+ssize_t mei_cl_recv(struct mei_cl_device *device, u8 *buf, size_t length)
{
struct mei_cl *cl = device->cl;
#include "hbm.h"
#include "client.h"
+/**
+ * mei_me_cl_init - initialize me client
+ *
+ * @me_cl: me client
+ */
+void mei_me_cl_init(struct mei_me_client *me_cl)
+{
+ INIT_LIST_HEAD(&me_cl->list);
+ kref_init(&me_cl->refcnt);
+}
+
+/**
+ * mei_me_cl_get - increases me client refcount
+ *
+ * @me_cl: me client
+ *
+ * Locking: called under "dev->device_lock" lock
+ *
+ * Return: me client or NULL
+ */
+struct mei_me_client *mei_me_cl_get(struct mei_me_client *me_cl)
+{
+ if (me_cl)
+ kref_get(&me_cl->refcnt);
+
+ return me_cl;
+}
+
+/**
+ * mei_me_cl_release - unlink and free me client
+ *
+ * Locking: called under "dev->device_lock" lock
+ *
+ * @ref: me_client refcount
+ */
+static void mei_me_cl_release(struct kref *ref)
+{
+ struct mei_me_client *me_cl =
+ container_of(ref, struct mei_me_client, refcnt);
+ list_del(&me_cl->list);
+ kfree(me_cl);
+}
+/**
+ * mei_me_cl_put - decrease me client refcount and free client if necessary
+ *
+ * Locking: called under "dev->device_lock" lock
+ *
+ * @me_cl: me client
+ */
+void mei_me_cl_put(struct mei_me_client *me_cl)
+{
+ if (me_cl)
+ kref_put(&me_cl->refcnt, mei_me_cl_release);
+}
+
/**
* mei_me_cl_by_uuid - locate me client by uuid
+ * increases ref count
*
* @dev: mei device
* @uuid: me client uuid
list_for_each_entry(me_cl, &dev->me_clients, list)
if (uuid_le_cmp(*uuid, me_cl->props.protocol_name) == 0)
- return me_cl;
+ return mei_me_cl_get(me_cl);
return NULL;
}
/**
* mei_me_cl_by_id - locate me client by client id
+ * increases ref count
*
* @dev: the device structure
* @client_id: me client id
list_for_each_entry(me_cl, &dev->me_clients, list)
if (me_cl->client_id == client_id)
- return me_cl;
+ return mei_me_cl_get(me_cl);
+
return NULL;
}
/**
* mei_me_cl_by_uuid_id - locate me client by client id and uuid
+ * increases ref count
*
* @dev: the device structure
* @uuid: me client uuid
list_for_each_entry(me_cl, &dev->me_clients, list)
if (uuid_le_cmp(*uuid, me_cl->props.protocol_name) == 0 &&
me_cl->client_id == client_id)
- return me_cl;
+ return mei_me_cl_get(me_cl);
+
return NULL;
}
/**
- * mei_me_cl_remove - remove me client matching uuid and client_id
+ * mei_me_cl_rm_by_uuid - remove all me clients matching uuid
*
* @dev: the device structure
* @uuid: me client uuid
- * @client_id: me client address
+ *
+ * Locking: called under "dev->device_lock" lock
*/
-void mei_me_cl_remove(struct mei_device *dev, const uuid_le *uuid, u8 client_id)
+void mei_me_cl_rm_by_uuid(struct mei_device *dev, const uuid_le *uuid)
{
struct mei_me_client *me_cl, *next;
+ dev_dbg(dev->dev, "remove %pUl\n", uuid);
+ list_for_each_entry_safe(me_cl, next, &dev->me_clients, list)
+ if (uuid_le_cmp(*uuid, me_cl->props.protocol_name) == 0)
+ mei_me_cl_put(me_cl);
+}
+
+/**
+ * mei_me_cl_rm_by_uuid_id - remove all me clients matching client id
+ *
+ * @dev: the device structure
+ * @uuid: me client uuid
+ * @id: me client id
+ *
+ * Locking: called under "dev->device_lock" lock
+ */
+void mei_me_cl_rm_by_uuid_id(struct mei_device *dev, const uuid_le *uuid, u8 id)
+{
+ struct mei_me_client *me_cl, *next;
+ const uuid_le *pn;
+
+ dev_dbg(dev->dev, "remove %pUl %d\n", uuid, id);
list_for_each_entry_safe(me_cl, next, &dev->me_clients, list) {
- if (uuid_le_cmp(*uuid, me_cl->props.protocol_name) == 0 &&
- me_cl->client_id == client_id) {
- list_del(&me_cl->list);
- kfree(me_cl);
- break;
- }
+ pn = &me_cl->props.protocol_name;
+ if (me_cl->client_id == id && uuid_le_cmp(*uuid, *pn) == 0)
+ mei_me_cl_put(me_cl);
}
}
+/**
+ * mei_me_cl_rm_all - remove all me clients
+ *
+ * @dev: the device structure
+ *
+ * Locking: called under "dev->device_lock" lock
+ */
+void mei_me_cl_rm_all(struct mei_device *dev)
+{
+ struct mei_me_client *me_cl, *next;
+
+ list_for_each_entry_safe(me_cl, next, &dev->me_clients, list)
+ mei_me_cl_put(me_cl);
+}
+
+
/**
* mei_cl_cmp_id - tells if the clients are the same
{
struct mei_device *dev;
struct mei_me_client *me_cl;
+ int rets = 0;
if (WARN_ON(!cl || !cl->dev))
return -EINVAL;
if (cl->mei_flow_ctrl_creds > 0)
return 1;
- me_cl = mei_me_cl_by_id(dev, cl->me_client_id);
+ me_cl = mei_me_cl_by_uuid_id(dev, &cl->cl_uuid, cl->me_client_id);
if (!me_cl) {
cl_err(dev, cl, "no such me client %d\n", cl->me_client_id);
return -ENOENT;
}
- if (me_cl->mei_flow_ctrl_creds) {
+ if (me_cl->mei_flow_ctrl_creds > 0) {
+ rets = 1;
if (WARN_ON(me_cl->props.single_recv_buf == 0))
- return -EINVAL;
- return 1;
+ rets = -EINVAL;
}
- return 0;
+ mei_me_cl_put(me_cl);
+ return rets;
}
/**
{
struct mei_device *dev;
struct mei_me_client *me_cl;
+ int rets;
if (WARN_ON(!cl || !cl->dev))
return -EINVAL;
dev = cl->dev;
- me_cl = mei_me_cl_by_id(dev, cl->me_client_id);
+ me_cl = mei_me_cl_by_uuid_id(dev, &cl->cl_uuid, cl->me_client_id);
if (!me_cl) {
cl_err(dev, cl, "no such me client %d\n", cl->me_client_id);
return -ENOENT;
}
if (me_cl->props.single_recv_buf) {
- if (WARN_ON(me_cl->mei_flow_ctrl_creds <= 0))
- return -EINVAL;
+ if (WARN_ON(me_cl->mei_flow_ctrl_creds <= 0)) {
+ rets = -EINVAL;
+ goto out;
+ }
me_cl->mei_flow_ctrl_creds--;
} else {
- if (WARN_ON(cl->mei_flow_ctrl_creds <= 0))
- return -EINVAL;
+ if (WARN_ON(cl->mei_flow_ctrl_creds <= 0)) {
+ rets = -EINVAL;
+ goto out;
+ }
cl->mei_flow_ctrl_creds--;
}
- return 0;
+ rets = 0;
+out:
+ mei_me_cl_put(me_cl);
+ return rets;
}
/**
cl_err(dev, cl, "no such me client %d\n", cl->me_client_id);
return -ENOTTY;
}
+ /* always allocate at least client max message */
+ length = max_t(size_t, length, me_cl->props.max_msg_length);
+ mei_me_cl_put(me_cl);
rets = pm_runtime_get(dev->dev);
if (rets < 0 && rets != -EINPROGRESS) {
goto out;
}
- /* always allocate at least client max message */
- length = max_t(size_t, length, me_cl->props.max_msg_length);
rets = mei_io_cb_alloc_resp_buf(cb, length);
if (rets)
goto out;
#include "mei_dev.h"
+/*
+ * reference counting base function
+ */
+void mei_me_cl_init(struct mei_me_client *me_cl);
+void mei_me_cl_put(struct mei_me_client *me_cl);
+struct mei_me_client *mei_me_cl_get(struct mei_me_client *me_cl);
+
struct mei_me_client *mei_me_cl_by_uuid(const struct mei_device *dev,
- const uuid_le *cuuid);
+ const uuid_le *uuid);
struct mei_me_client *mei_me_cl_by_id(struct mei_device *dev, u8 client_id);
-
struct mei_me_client *mei_me_cl_by_uuid_id(struct mei_device *dev,
const uuid_le *uuid, u8 client_id);
-
-void mei_me_cl_remove(struct mei_device *dev,
- const uuid_le *uuid, u8 client_id);
+void mei_me_cl_rm_by_uuid(struct mei_device *dev, const uuid_le *uuid);
+void mei_me_cl_rm_by_uuid_id(struct mei_device *dev,
+ const uuid_le *uuid, u8 id);
+void mei_me_cl_rm_all(struct mei_device *dev);
/*
* MEI IO Functions
#include <linux/mei.h>
#include "mei_dev.h"
+#include "client.h"
#include "hw.h"
static ssize_t mei_dbgfs_read_meclients(struct file *fp, char __user *ubuf,
size_t cnt, loff_t *ppos)
{
struct mei_device *dev = fp->private_data;
- struct mei_me_client *me_cl;
+ struct mei_me_client *me_cl, *n;
size_t bufsz = 1;
char *buf;
int i = 0;
int pos = 0;
int ret;
-#define HDR " |id|fix| UUID |con|msg len|sb|\n"
+#define HDR \
+" |id|fix| UUID |con|msg len|sb|refc|\n"
mutex_lock(&dev->device_lock);
if (dev->dev_state != MEI_DEV_ENABLED)
goto out;
- list_for_each_entry(me_cl, &dev->me_clients, list) {
-
- pos += scnprintf(buf + pos, bufsz - pos,
- "%2d|%2d|%3d|%pUl|%3d|%7d|%2d|\n",
- i++, me_cl->client_id,
- me_cl->props.fixed_address,
- &me_cl->props.protocol_name,
- me_cl->props.max_number_of_connections,
- me_cl->props.max_msg_length,
- me_cl->props.single_recv_buf);
+ list_for_each_entry_safe(me_cl, n, &dev->me_clients, list) {
+
+ me_cl = mei_me_cl_get(me_cl);
+ if (me_cl) {
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "%2d|%2d|%3d|%pUl|%3d|%7d|%2d|%4d|\n",
+ i++, me_cl->client_id,
+ me_cl->props.fixed_address,
+ &me_cl->props.protocol_name,
+ me_cl->props.max_number_of_connections,
+ me_cl->props.max_msg_length,
+ me_cl->props.single_recv_buf,
+ atomic_read(&me_cl->refcnt.refcount));
+ }
+
+ mei_me_cl_put(me_cl);
}
out:
mutex_unlock(&dev->device_lock);
dev->hbm_state = MEI_HBM_IDLE;
}
-/**
- * mei_me_cl_remove_all - remove all me clients
- *
- * @dev: the device structure
- */
-static void mei_me_cl_remove_all(struct mei_device *dev)
-{
- struct mei_me_client *me_cl, *next;
-
- list_for_each_entry_safe(me_cl, next, &dev->me_clients, list) {
- list_del(&me_cl->list);
- kfree(me_cl);
- }
-}
-
/**
* mei_hbm_reset - reset hbm counters and book keeping data structurs
*
{
dev->me_client_index = 0;
- mei_me_cl_remove_all(dev);
+ mei_me_cl_rm_all(dev);
mei_hbm_idle(dev);
}
struct hbm_props_response *res)
{
struct mei_me_client *me_cl;
+ const uuid_le *uuid = &res->client_properties.protocol_name;
+
+ mei_me_cl_rm_by_uuid(dev, uuid);
me_cl = kzalloc(sizeof(struct mei_me_client), GFP_KERNEL);
if (!me_cl)
return -ENOMEM;
+ mei_me_cl_init(me_cl);
+
me_cl->props = res->client_properties;
me_cl->client_id = res->me_addr;
me_cl->mei_flow_ctrl_creds = 0;
struct hbm_flow_control *flow)
{
struct mei_me_client *me_cl;
+ int rets;
me_cl = mei_me_cl_by_id(dev, flow->me_addr);
if (!me_cl) {
return -ENOENT;
}
- if (WARN_ON(me_cl->props.single_recv_buf == 0))
- return -EINVAL;
+ if (WARN_ON(me_cl->props.single_recv_buf == 0)) {
+ rets = -EINVAL;
+ goto out;
+ }
me_cl->mei_flow_ctrl_creds++;
dev_dbg(dev->dev, "recv flow ctrl msg ME %d (single) creds = %d.\n",
flow->me_addr, me_cl->mei_flow_ctrl_creds);
- return 0;
+ rets = 0;
+out:
+ mei_me_cl_put(me_cl);
+ return rets;
}
/**
if ((hcsr & H_RST) == H_RST) {
dev_warn(dev->dev, "H_RST is set = 0x%08X", hcsr);
hcsr &= ~H_RST;
- mei_me_reg_write(hw, H_CSR, hcsr);
+ mei_hcsr_set(hw, hcsr);
hcsr = mei_hcsr_read(hw);
}
return -ETIME;
}
+ mei_me_hw_reset_release(dev);
dev->recvd_hw_ready = false;
return 0;
}
/* check if we need to start the dev */
if (!mei_host_is_ready(dev)) {
if (mei_hw_is_ready(dev)) {
- mei_me_hw_reset_release(dev);
dev_dbg(dev->dev, "we need to start the dev.\n");
-
dev->recvd_hw_ready = true;
wake_up(&dev->wait_hw_ready);
} else {
size_t length, loff_t *offset)
{
struct mei_cl *cl = file->private_data;
- struct mei_me_client *me_cl;
+ struct mei_me_client *me_cl = NULL;
struct mei_cl_cb *write_cb = NULL;
struct mei_device *dev;
unsigned long timeout = 0;
"amthif write failed with status = %d\n", rets);
goto out;
}
+ mei_me_cl_put(me_cl);
mutex_unlock(&dev->device_lock);
return length;
}
rets = mei_cl_write(cl, write_cb, false);
out:
+ mei_me_cl_put(me_cl);
mutex_unlock(&dev->device_lock);
if (rets < 0)
mei_io_cb_free(write_cb);
cl = file->private_data;
dev = cl->dev;
- if (dev->dev_state != MEI_DEV_ENABLED) {
- rets = -ENODEV;
- goto end;
- }
+ if (dev->dev_state != MEI_DEV_ENABLED)
+ return -ENODEV;
if (cl->state != MEI_FILE_INITIALIZING &&
- cl->state != MEI_FILE_DISCONNECTED) {
- rets = -EBUSY;
- goto end;
- }
+ cl->state != MEI_FILE_DISCONNECTED)
+ return -EBUSY;
/* find ME client we're trying to connect to */
me_cl = mei_me_cl_by_uuid(dev, &data->in_client_uuid);
if (!me_cl || me_cl->props.fixed_address) {
dev_dbg(dev->dev, "Cannot connect to FW Client UUID = %pUl\n",
&data->in_client_uuid);
- rets = -ENOTTY;
- goto end;
+ return -ENOTTY;
}
cl->me_client_id = me_cl->client_id;
goto end;
}
-
/* prepare the output buffer */
client = &data->out_client_properties;
client->max_msg_length = me_cl->props.max_msg_length;
client->protocol_version = me_cl->props.protocol_version;
dev_dbg(dev->dev, "Can connect?\n");
-
rets = mei_cl_connect(cl, file);
end:
+ mei_me_cl_put(me_cl);
return rets;
}
* struct mei_me_client - representation of me (fw) client
*
* @list: link in me client list
+ * @refcnt: struct reference count
* @props: client properties
* @client_id: me client id
* @mei_flow_ctrl_creds: flow control credits
*/
struct mei_me_client {
struct list_head list;
+ struct kref refcnt;
struct mei_client_properties props;
u8 client_id;
u8 mei_flow_ctrl_creds;
struct mei_cl_ops *ops);
void mei_cl_remove_device(struct mei_cl_device *device);
-int __mei_cl_async_send(struct mei_cl *cl, u8 *buf, size_t length);
-int __mei_cl_send(struct mei_cl *cl, u8 *buf, size_t length);
-int __mei_cl_recv(struct mei_cl *cl, u8 *buf, size_t length);
+ssize_t __mei_cl_async_send(struct mei_cl *cl, u8 *buf, size_t length);
+ssize_t __mei_cl_send(struct mei_cl *cl, u8 *buf, size_t length);
+ssize_t __mei_cl_recv(struct mei_cl *cl, u8 *buf, size_t length);
void mei_cl_bus_rx_event(struct mei_cl *cl);
void mei_cl_bus_remove_devices(struct mei_device *dev);
int mei_cl_bus_init(void);
cl_info->me_client_id = me_cl->client_id;
cl_info->cl_uuid = me_cl->props.protocol_name;
+ mei_me_cl_put(me_cl);
ret = mei_cl_link(cl_info, MEI_HOST_CLIENT_ID_ANY);
if (ret)
cl->me_client_id = me_cl->client_id;
cl->cl_uuid = me_cl->props.protocol_name;
+ mei_me_cl_put(me_cl);
ret = mei_cl_link(cl, MEI_HOST_CLIENT_ID_ANY);
if (ret)
cl->me_client_id = me_cl->client_id;
cl->cl_uuid = me_cl->props.protocol_name;
+ mei_me_cl_put(me_cl);
ret = mei_cl_link(cl, MEI_WD_HOST_CLIENT_ID);
/* Unknow packet? */
default:
type = *ptr;
- if (st_gdata->list[type] == NULL) {
- pr_err("chip/interface misbehavior dropping"
- " frame starting with 0x%02x", type);
- goto done;
+ /* Default case means non-HCILL packets,
+ * possibilities are packets for:
+ * (a) valid protocol - Supported Protocols within
+ * the ST_MAX_CHANNELS.
+ * (b) registered protocol - Checked by
+ * "st_gdata->list[type] == NULL)" are supported
+ * protocols only.
+ * Rules out any invalid protocol and
+ * unregistered protocols with channel ID < 16.
+ */
+
+ if ((type >= ST_MAX_CHANNELS) ||
+ (st_gdata->list[type] == NULL)) {
+ pr_err("chip/interface misbehavior: "
+ "dropping frame starting "
+ "with 0x%02x\n", type);
+ goto done;
}
+
st_gdata->rx_skb = alloc_skb(
st_gdata->list[type]->max_frame_size,
GFP_ATOMIC);
kfree(st_gdata);
}
}
-
-
#include <linux/skbuff.h>
#include <linux/ti_wilink_st.h>
#include <linux/module.h>
-
+#include <linux/of.h>
+#include <linux/of_device.h>
#define MAX_ST_DEVICES 3 /* Imagine 1 on each UART for now */
static struct platform_device *st_kim_devices[MAX_ST_DEVICES];
/**********************************************************************/
/* internal functions */
+struct ti_st_plat_data *dt_pdata;
+static struct ti_st_plat_data *get_platform_data(struct device *dev);
+
/**
* st_get_plat_device -
* function which returns the reference to the platform device
{
unsigned short version = 0, chip = 0, min_ver = 0, maj_ver = 0;
const char read_ver_cmd[] = { 0x01, 0x01, 0x10, 0x00 };
+ long timeout;
pr_debug("%s", __func__);
return -EIO;
}
- if (!wait_for_completion_interruptible_timeout(
- &kim_gdata->kim_rcvd, msecs_to_jiffies(CMD_RESP_TIME))) {
- pr_err(" waiting for ver info- timed out ");
- return -ETIMEDOUT;
+ timeout = wait_for_completion_interruptible_timeout(
+ &kim_gdata->kim_rcvd, msecs_to_jiffies(CMD_RESP_TIME));
+ if (timeout <= 0) {
+ pr_err(" waiting for ver info- timed out or received signal");
+ return timeout ? -ERESTARTSYS : -ETIMEDOUT;
}
reinit_completion(&kim_gdata->kim_rcvd);
/* the positions 12 & 13 in the response buffer provide with the
break;
case ACTION_WAIT_EVENT: /* wait */
pr_debug("W");
- if (!wait_for_completion_interruptible_timeout(
+ err = wait_for_completion_interruptible_timeout(
&kim_gdata->kim_rcvd,
- msecs_to_jiffies(CMD_RESP_TIME))) {
- pr_err("response timeout during fw download ");
+ msecs_to_jiffies(CMD_RESP_TIME));
+ if (err <= 0) {
+ pr_err("response timeout/signaled during fw download ");
/* timed out */
release_firmware(kim_gdata->fw_entry);
- return -ETIMEDOUT;
+ return err ? -ERESTARTSYS : -ETIMEDOUT;
}
reinit_completion(&kim_gdata->kim_rcvd);
break;
struct kim_data_s *kim_gdata = (struct kim_data_s *)kim_data;
pr_info(" %s", __func__);
- pdata = kim_gdata->kim_pdev->dev.platform_data;
+ if (kim_gdata->kim_pdev->dev.of_node) {
+ pr_debug("use device tree data");
+ pdata = dt_pdata;
+ } else {
+ pdata = kim_gdata->kim_pdev->dev.platform_data;
+ }
do {
/* platform specific enabling code here */
{
long err = 0;
struct kim_data_s *kim_gdata = (struct kim_data_s *)kim_data;
- struct ti_st_plat_data *pdata =
- kim_gdata->kim_pdev->dev.platform_data;
+ struct ti_st_plat_data *pdata;
struct tty_struct *tty = kim_gdata->core_data->tty;
reinit_completion(&kim_gdata->ldisc_installed);
+ if (kim_gdata->kim_pdev->dev.of_node) {
+ pr_debug("use device tree data");
+ pdata = dt_pdata;
+ } else
+ pdata = kim_gdata->kim_pdev->dev.platform_data;
+
+
if (tty) { /* can be called before ldisc is installed */
/* Flush any pending characters in the driver and discipline. */
tty_ldisc_flush(tty);
struct device_attribute *attr, char *buf)
{
struct kim_data_s *kim_data = dev_get_drvdata(dev);
- return sprintf(buf, "%ld\n", kim_data->baud_rate);
+ return sprintf(buf, "%d\n", kim_data->baud_rate);
}
static ssize_t show_flow_cntrl(struct device *dev,
struct kim_data_s *kim_gdata;
/* get kim_gdata reference from platform device */
pdev = st_get_plat_device(id);
- if (!pdev) {
- *core_data = NULL;
- return;
- }
+ if (!pdev)
+ goto err;
kim_gdata = platform_get_drvdata(pdev);
+ if (!kim_gdata)
+ goto err;
+
*core_data = kim_gdata->core_data;
+ return;
+err:
+ *core_data = NULL;
}
static int kim_version_open(struct inode *i, struct file *f)
* board-*.c file
*/
+static const struct of_device_id kim_of_match[] = {
+{
+ .compatible = "kim",
+ },
+ {}
+};
+MODULE_DEVICE_TABLE(of, kim_of_match);
+
+static struct ti_st_plat_data *get_platform_data(struct device *dev)
+{
+ struct device_node *np = dev->of_node;
+ const u32 *dt_property;
+ int len;
+
+ dt_pdata = kzalloc(sizeof(*dt_pdata), GFP_KERNEL);
+
+ if (!dt_pdata)
+ pr_err("Can't allocate device_tree platform data\n");
+
+ dt_property = of_get_property(np, "dev_name", &len);
+ if (dt_property)
+ memcpy(&dt_pdata->dev_name, dt_property, len);
+ of_property_read_u32(np, "nshutdown_gpio",
+ &dt_pdata->nshutdown_gpio);
+ of_property_read_u32(np, "flow_cntrl", &dt_pdata->flow_cntrl);
+ of_property_read_u32(np, "baud_rate", &dt_pdata->baud_rate);
+
+ return dt_pdata;
+}
+
static struct dentry *kim_debugfs_dir;
static int kim_probe(struct platform_device *pdev)
{
struct kim_data_s *kim_gdata;
- struct ti_st_plat_data *pdata = pdev->dev.platform_data;
+ struct ti_st_plat_data *pdata;
int err;
+ if (pdev->dev.of_node)
+ pdata = get_platform_data(&pdev->dev);
+ else
+ pdata = pdev->dev.platform_data;
+
+ if (pdata == NULL) {
+ dev_err(&pdev->dev, "Platform Data is missing\n");
+ return -ENXIO;
+ }
+
if ((pdev->id != -1) && (pdev->id < MAX_ST_DEVICES)) {
/* multiple devices could exist */
st_kim_devices[pdev->id] = pdev;
kim_gdata->nshutdown = pdata->nshutdown_gpio;
err = gpio_request(kim_gdata->nshutdown, "kim");
if (unlikely(err)) {
- pr_err(" gpio %ld request failed ", kim_gdata->nshutdown);
+ pr_err(" gpio %d request failed ", kim_gdata->nshutdown);
return err;
}
/* Configure nShutdown GPIO as output=0 */
err = gpio_direction_output(kim_gdata->nshutdown, 0);
if (unlikely(err)) {
- pr_err(" unable to configure gpio %ld", kim_gdata->nshutdown);
+ pr_err(" unable to configure gpio %d", kim_gdata->nshutdown);
return err;
}
/* get reference of pdev for request_firmware
kim_debugfs_dir = debugfs_create_dir("ti-st", NULL);
if (!kim_debugfs_dir) {
pr_err(" debugfs entries creation failed ");
- err = -EIO;
- goto err_debugfs_dir;
+ return 0;
}
debugfs_create_file("version", S_IRUGO, kim_debugfs_dir,
kim_gdata, &list_debugfs_fops);
return 0;
-err_debugfs_dir:
- sysfs_remove_group(&pdev->dev.kobj, &uim_attr_grp);
-
err_sysfs_group:
st_core_exit(kim_gdata->core_data);
static int kim_remove(struct platform_device *pdev)
{
/* free the GPIOs requested */
- struct ti_st_plat_data *pdata = pdev->dev.platform_data;
+ struct ti_st_plat_data *pdata;
struct kim_data_s *kim_gdata;
+ if (pdev->dev.of_node) {
+ pr_debug("use device tree data");
+ pdata = dt_pdata;
+ } else {
+ pdata = pdev->dev.platform_data;
+ }
+
kim_gdata = platform_get_drvdata(pdev);
/* Free the Bluetooth/FM/GPIO
kfree(kim_gdata);
kim_gdata = NULL;
+ kfree(dt_pdata);
+ dt_pdata = NULL;
+
return 0;
}
static int kim_suspend(struct platform_device *pdev, pm_message_t state)
{
- struct ti_st_plat_data *pdata = pdev->dev.platform_data;
+ struct ti_st_plat_data *pdata;
+
+ if (pdev->dev.of_node) {
+ pr_debug("use device tree data");
+ pdata = dt_pdata;
+ } else {
+ pdata = pdev->dev.platform_data;
+ }
if (pdata->suspend)
return pdata->suspend(pdev, state);
- return -EOPNOTSUPP;
+ return 0;
}
static int kim_resume(struct platform_device *pdev)
{
- struct ti_st_plat_data *pdata = pdev->dev.platform_data;
+ struct ti_st_plat_data *pdata;
+
+ if (pdev->dev.of_node) {
+ pr_debug("use device tree data");
+ pdata = dt_pdata;
+ } else {
+ pdata = pdev->dev.platform_data;
+ }
if (pdata->resume)
return pdata->resume(pdev);
- return -EOPNOTSUPP;
+ return 0;
}
/**********************************************************************/
.resume = kim_resume,
.driver = {
.name = "kim",
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(kim_of_match),
},
};
#include <linux/ti_wilink_st.h>
/**********************************************************************/
+
/* internal functions */
static void send_ll_cmd(struct st_data_s *st_data,
unsigned char cmd)
/* communicate to platform about chip asleep */
kim_data = st_data->kim_data;
- pdata = kim_data->kim_pdev->dev.platform_data;
+ if (kim_data->kim_pdev->dev.of_node) {
+ pr_debug("use device tree data");
+ pdata = dt_pdata;
+ } else {
+ pdata = kim_data->kim_pdev->dev.platform_data;
+ }
+
if (pdata->chip_asleep)
pdata->chip_asleep(NULL);
}
/* communicate to platform about chip wakeup */
kim_data = st_data->kim_data;
- pdata = kim_data->kim_pdev->dev.platform_data;
+ if (kim_data->kim_pdev->dev.of_node) {
+ pr_debug("use device tree data");
+ pdata = dt_pdata;
+ } else {
+ pdata = kim_data->kim_pdev->dev.platform_data;
+ }
+
if (pdata->chip_awake)
pdata->chip_awake(NULL);
}
MODULE_AUTHOR("VMware, Inc.");
MODULE_DESCRIPTION("VMware Virtual Machine Communication Interface.");
-MODULE_VERSION("1.1.0.0-k");
+MODULE_VERSION("1.1.1.0-k");
MODULE_LICENSE("GPL v2");
}
/*
- * Sets up a given context for notify to work. Calls drv_map_bool_ptr()
- * which maps the notify boolean in user VA in kernel space.
+ * Sets up a given context for notify to work. Maps the notify
+ * boolean in user VA into kernel space.
*/
static int vmci_host_setup_notify(struct vmci_ctx *context,
unsigned long uva)
{
- struct page *page;
int retval;
if (context->notify_page) {
/*
* Lock physical page backing a given user VA.
*/
- retval = get_user_pages_fast(PAGE_ALIGN(uva), 1, 1, &page);
- if (retval != 1)
+ retval = get_user_pages_fast(uva, 1, 1, &context->notify_page);
+ if (retval != 1) {
+ context->notify_page = NULL;
return VMCI_ERROR_GENERIC;
+ }
/*
* Map the locked page and set up notify pointer.
*/
- context->notify = kmap(page) + (uva & (PAGE_SIZE - 1));
+ context->notify = kmap(context->notify_page) + (uva & (PAGE_SIZE - 1));
vmci_ctx_check_signal_notify(context);
return VMCI_SUCCESS;
tristate "CardBus yenta-compatible bridge support"
depends on PCI
select CARDBUS if !EXPERT
- select PCCARD_NONSTATIC if PCMCIA != n
+ select PCCARD_NONSTATIC if PCMCIA != n && ISA
+ select PCCARD_PCI if PCMCIA !=n && !ISA
---help---
This option enables support for CardBus host bridges. Virtually
all modern PCMCIA bridges are CardBus compatible. A "bridge" is
config PD6729
tristate "Cirrus PD6729 compatible bridge support"
depends on PCMCIA && PCI
- select PCCARD_NONSTATIC
+ select PCCARD_NONSTATIC if PCMCIA != n && ISA
+ select PCCARD_PCI if PCMCIA !=n && !ISA
help
This provides support for the Cirrus PD6729 PCI-to-PCMCIA bridge
device, found in some older laptops and PCMCIA card readers.
config I82092
tristate "i82092 compatible bridge support"
depends on PCMCIA && PCI
- select PCCARD_NONSTATIC
+ select PCCARD_NONSTATIC if PCMCIA != n && ISA
+ select PCCARD_PCI if PCMCIA !=n && !ISA
help
This provides support for the Intel I82092AA PCI-to-PCMCIA bridge device,
found in some older laptops and more commonly in evaluation boards for the
Say Y here to support the CompactFlash controller on the
PA Semi Electra eval board.
+config PCCARD_PCI
+ bool
+
config PCCARD_NONSTATIC
bool
pcmcia_rsrc-y += rsrc_mgr.o
pcmcia_rsrc-$(CONFIG_PCCARD_NONSTATIC) += rsrc_nonstatic.o
pcmcia_rsrc-$(CONFIG_PCCARD_IODYN) += rsrc_iodyn.o
+pcmcia_rsrc-$(CONFIG_PCCARD_PCI) += rsrc_pci.o
obj-$(CONFIG_PCCARD) += pcmcia_rsrc.o
} else {
u_int inc = 1, card_offset, flags;
- if (addr > CISTPL_MAX_CIS_SIZE)
+ if (addr > CISTPL_MAX_CIS_SIZE) {
dev_dbg(&s->dev,
"attempt to read CIS mem at addr %#x", addr);
+ memset(ptr, 0xff, len);
+ return -1;
+ }
flags = MAP_ACTIVE | ((cis_width) ? MAP_16BIT : 0);
if (attr) {
if (!s)
return -EINVAL;
- if (s->functions) {
+ if (s->functions || !(s->state & SOCKET_PRESENT)) {
WARN_ON(1);
return -EINVAL;
}
done:
/* invalidate CIS cache on failure */
if (!dev_ok || !ident_ok || !count) {
- mutex_lock(&s->ops_mutex);
- destroy_cis_cache(s);
- mutex_unlock(&s->ops_mutex);
- ret = -EIO;
+#if defined(CONFIG_MTD_PCMCIA_ANONYMOUS)
+ /* Set up as an anonymous card. If we don't have anonymous
+ memory support then just error the card as there is no
+ point trying to second guess.
+
+ Note: some cards have just a device entry, it may be
+ worth extending support to cover these in future */
+ if (!dev_ok || !ident_ok) {
+ dev_info(&s->dev, "no CIS, assuming an anonymous memory card.\n");
+ pcmcia_replace_cis(s, "\xFF", 1);
+ count = 1;
+ ret = 0;
+ } else
+#endif
+ {
+ mutex_lock(&s->ops_mutex);
+ destroy_cis_cache(s);
+ mutex_unlock(&s->ops_mutex);
+ ret = -EIO;
+ }
}
if (info)
* Stuff internal to module "pcmcia_rsrc":
*/
extern int static_init(struct pcmcia_socket *s);
-extern struct resource *pcmcia_make_resource(unsigned long start,
- unsigned long end,
- int flags, const char *name);
+extern struct resource *pcmcia_make_resource(resource_size_t start,
+ resource_size_t end,
+ unsigned long flags, const char *name);
/*
* Stuff internal to module "pcmcia_core":
{
int has_pfc;
+ if (!(s->state & SOCKET_PRESENT))
+ return;
+
if (s->functions == 0) {
pcmcia_card_add(s);
return;
return 0;
}
-struct resource *pcmcia_make_resource(unsigned long start, unsigned long end,
- int flags, const char *name)
+struct resource *pcmcia_make_resource(resource_size_t start,
+ resource_size_t end,
+ unsigned long flags, const char *name)
{
struct resource *res = kzalloc(sizeof(*res), GFP_KERNEL);
--- /dev/null
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+
+#include <pcmcia/ss.h>
+#include <pcmcia/cistpl.h>
+#include "cs_internal.h"
+
+
+struct pcmcia_align_data {
+ unsigned long mask;
+ unsigned long offset;
+};
+
+static resource_size_t pcmcia_align(void *align_data,
+ const struct resource *res,
+ resource_size_t size, resource_size_t align)
+{
+ struct pcmcia_align_data *data = align_data;
+ resource_size_t start;
+
+ start = (res->start & ~data->mask) + data->offset;
+ if (start < res->start)
+ start += data->mask + 1;
+ return start;
+}
+
+static struct resource *find_io_region(struct pcmcia_socket *s,
+ unsigned long base, int num,
+ unsigned long align)
+{
+ struct resource *res = pcmcia_make_resource(0, num, IORESOURCE_IO,
+ dev_name(&s->dev));
+ struct pcmcia_align_data data;
+ int ret;
+
+ data.mask = align - 1;
+ data.offset = base & data.mask;
+
+ ret = pci_bus_alloc_resource(s->cb_dev->bus, res, num, 1,
+ base, 0, pcmcia_align, &data);
+ if (ret != 0) {
+ kfree(res);
+ res = NULL;
+ }
+ return res;
+}
+
+static int res_pci_find_io(struct pcmcia_socket *s, unsigned int attr,
+ unsigned int *base, unsigned int num,
+ unsigned int align, struct resource **parent)
+{
+ int i, ret = 0;
+
+ /* Check for an already-allocated window that must conflict with
+ * what was asked for. It is a hack because it does not catch all
+ * potential conflicts, just the most obvious ones.
+ */
+ for (i = 0; i < MAX_IO_WIN; i++) {
+ if (!s->io[i].res)
+ continue;
+
+ if (!*base)
+ continue;
+
+ if ((s->io[i].res->start & (align-1)) == *base)
+ return -EBUSY;
+ }
+
+ for (i = 0; i < MAX_IO_WIN; i++) {
+ struct resource *res = s->io[i].res;
+ unsigned int try;
+
+ if (res && (res->flags & IORESOURCE_BITS) !=
+ (attr & IORESOURCE_BITS))
+ continue;
+
+ if (!res) {
+ if (align == 0)
+ align = 0x10000;
+
+ res = s->io[i].res = find_io_region(s, *base, num,
+ align);
+ if (!res)
+ return -EINVAL;
+
+ *base = res->start;
+ s->io[i].res->flags =
+ ((res->flags & ~IORESOURCE_BITS) |
+ (attr & IORESOURCE_BITS));
+ s->io[i].InUse = num;
+ *parent = res;
+ return 0;
+ }
+
+ /* Try to extend top of window */
+ try = res->end + 1;
+ if ((*base == 0) || (*base == try)) {
+ ret = adjust_resource(s->io[i].res, res->start,
+ resource_size(res) + num);
+ if (ret)
+ continue;
+ *base = try;
+ s->io[i].InUse += num;
+ *parent = res;
+ return 0;
+ }
+
+ /* Try to extend bottom of window */
+ try = res->start - num;
+ if ((*base == 0) || (*base == try)) {
+ ret = adjust_resource(s->io[i].res,
+ res->start - num,
+ resource_size(res) + num);
+ if (ret)
+ continue;
+ *base = try;
+ s->io[i].InUse += num;
+ *parent = res;
+ return 0;
+ }
+ }
+ return -EINVAL;
+}
+
+static struct resource *res_pci_find_mem(u_long base, u_long num,
+ u_long align, int low, struct pcmcia_socket *s)
+{
+ struct resource *res = pcmcia_make_resource(0, num, IORESOURCE_MEM,
+ dev_name(&s->dev));
+ struct pcmcia_align_data data;
+ unsigned long min;
+ int ret;
+
+ if (align < 0x20000)
+ align = 0x20000;
+ data.mask = align - 1;
+ data.offset = base & data.mask;
+
+ min = 0;
+ if (!low)
+ min = 0x100000UL;
+
+ ret = pci_bus_alloc_resource(s->cb_dev->bus,
+ res, num, 1, min, 0,
+ pcmcia_align, &data);
+
+ if (ret != 0) {
+ kfree(res);
+ res = NULL;
+ }
+ return res;
+}
+
+
+static int res_pci_init(struct pcmcia_socket *s)
+{
+ if (!s->cb_dev || !(s->features & SS_CAP_PAGE_REGS)) {
+ dev_err(&s->dev, "not supported by res_pci\n");
+ return -EOPNOTSUPP;
+ }
+ return 0;
+}
+
+struct pccard_resource_ops pccard_nonstatic_ops = {
+ .validate_mem = NULL,
+ .find_io = res_pci_find_io,
+ .find_mem = res_pci_find_mem,
+ .init = res_pci_init,
+ .exit = NULL,
+};
+EXPORT_SYMBOL(pccard_nonstatic_ops);
break;
default:
pnpbios_print_status("pnp_dock_thread", status);
- continue;
+ printk(KERN_WARNING "PnPBIOS: disabling dock monitoring.\n");
+ complete_and_exit(&unload_sem, 0);
}
if (d != docked) {
if (pnp_dock_event(d, &now) == 0) {
To compile this driver as a module, choose M here; the module
will be called uio_netx.
+config UIO_FSL_ELBC_GPCM
+ tristate "eLBC/GPCM driver"
+ depends on FSL_LBC
+ help
+ Generic driver for accessing a peripheral connected to an eLBC port
+ that is running in GPCM mode. GPCM is an interface for simple lower
+ performance memories and memory-mapped devices. For devices using
+ FCM or UPM eLBC modes, other device-specific drivers are available.
+
+config UIO_FSL_ELBC_GPCM_NETX5152
+ bool "eLBC/GPCM netX 51/52 support"
+ depends on UIO_FSL_ELBC_GPCM
+ help
+ This will add support for netX 51/52 devices connected via eLBC/GPCM.
+ In particular, it implements interrupt handling. This can be used
+ together with the userspace netX stack from Hilscher.
+
+ Information about this hardware can be found at:
+ http://www.hilscher.com/netx
+
config UIO_PRUSS
tristate "Texas Instruments PRUSS driver"
depends on ARCH_DAVINCI_DA850
obj-$(CONFIG_UIO_NETX) += uio_netx.o
obj-$(CONFIG_UIO_PRUSS) += uio_pruss.o
obj-$(CONFIG_UIO_MF624) += uio_mf624.o
+obj-$(CONFIG_UIO_FSL_ELBC_GPCM) += uio_fsl_elbc_gpcm.o
--- /dev/null
+/* uio_fsl_elbc_gpcm: UIO driver for eLBC/GPCM peripherals
+
+ Copyright (C) 2014 Linutronix GmbH
+ Author: John Ogness <john.ogness@linutronix.de>
+
+ This driver provides UIO access to memory of a peripheral connected
+ to the Freescale enhanced local bus controller (eLBC) interface
+ using the general purpose chip-select mode (GPCM).
+
+ Here is an example of the device tree entries:
+
+ localbus@ffe05000 {
+ ranges = <0x2 0x0 0x0 0xff810000 0x10000>;
+
+ dpm@2,0 {
+ compatible = "fsl,elbc-gpcm-uio";
+ reg = <0x2 0x0 0x10000>;
+ elbc-gpcm-br = <0xff810800>;
+ elbc-gpcm-or = <0xffff09f7>;
+ interrupt-parent = <&mpic>;
+ interrupts = <4 1>;
+ device_type = "netx5152";
+ uio_name = "netx_custom";
+ netx5152,init-win0-offset = <0x0>;
+ };
+ };
+
+ Only the entries reg (to identify bank) and elbc-gpcm-* (initial BR/OR
+ values) are required. The entries interrupt*, device_type, and uio_name
+ are optional (as well as any type-specific options such as
+ netx5152,init-win0-offset). As long as no interrupt handler is needed,
+ this driver can be used without any type-specific implementation.
+
+ The netx5152 type has been tested to work with the netX 51/52 hardware
+ from Hilscher using the Hilscher userspace netX stack.
+
+ The netx5152 type should serve as a model to add new type-specific
+ devices as needed.
+*/
+
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+#include <linux/uio_driver.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+
+#include <asm/fsl_lbc.h>
+
+#define MAX_BANKS 8
+
+struct fsl_elbc_gpcm {
+ struct device *dev;
+ struct fsl_lbc_regs __iomem *lbc;
+ u32 bank;
+ const char *name;
+
+ void (*init)(struct uio_info *info);
+ void (*shutdown)(struct uio_info *info, bool init_err);
+ irqreturn_t (*irq_handler)(int irq, struct uio_info *info);
+};
+
+static ssize_t reg_show(struct device *dev, struct device_attribute *attr,
+ char *buf);
+static ssize_t reg_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count);
+
+DEVICE_ATTR(reg_br, S_IRUGO|S_IWUSR|S_IWGRP, reg_show, reg_store);
+DEVICE_ATTR(reg_or, S_IRUGO|S_IWUSR|S_IWGRP, reg_show, reg_store);
+
+static ssize_t reg_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct uio_info *info = platform_get_drvdata(pdev);
+ struct fsl_elbc_gpcm *priv = info->priv;
+ struct fsl_lbc_bank *bank = &priv->lbc->bank[priv->bank];
+
+ if (attr == &dev_attr_reg_br) {
+ return scnprintf(buf, PAGE_SIZE, "0x%08x\n",
+ in_be32(&bank->br));
+
+ } else if (attr == &dev_attr_reg_or) {
+ return scnprintf(buf, PAGE_SIZE, "0x%08x\n",
+ in_be32(&bank->or));
+ }
+
+ return 0;
+}
+
+static ssize_t reg_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct uio_info *info = platform_get_drvdata(pdev);
+ struct fsl_elbc_gpcm *priv = info->priv;
+ struct fsl_lbc_bank *bank = &priv->lbc->bank[priv->bank];
+ unsigned long val;
+ u32 reg_br_cur;
+ u32 reg_or_cur;
+ u32 reg_new;
+
+ /* parse use input */
+ if (kstrtoul(buf, 0, &val) != 0)
+ return -EINVAL;
+ reg_new = (u32)val;
+
+ /* read current values */
+ reg_br_cur = in_be32(&bank->br);
+ reg_or_cur = in_be32(&bank->or);
+
+ if (attr == &dev_attr_reg_br) {
+ /* not allowed to change effective base address */
+ if ((reg_br_cur & reg_or_cur & BR_BA) !=
+ (reg_new & reg_or_cur & BR_BA)) {
+ return -EINVAL;
+ }
+
+ /* not allowed to change mode */
+ if ((reg_new & BR_MSEL) != BR_MS_GPCM)
+ return -EINVAL;
+
+ /* write new value (force valid) */
+ out_be32(&bank->br, reg_new | BR_V);
+
+ } else if (attr == &dev_attr_reg_or) {
+ /* not allowed to change access mask */
+ if ((reg_or_cur & OR_GPCM_AM) != (reg_new & OR_GPCM_AM))
+ return -EINVAL;
+
+ /* write new value */
+ out_be32(&bank->or, reg_new);
+
+ } else {
+ return -EINVAL;
+ }
+
+ return count;
+}
+
+#ifdef CONFIG_UIO_FSL_ELBC_GPCM_NETX5152
+#define DPM_HOST_WIN0_OFFSET 0xff00
+#define DPM_HOST_INT_STAT0 0xe0
+#define DPM_HOST_INT_EN0 0xf0
+#define DPM_HOST_INT_MASK 0xe600ffff
+#define DPM_HOST_INT_GLOBAL_EN 0x80000000
+
+static irqreturn_t netx5152_irq_handler(int irq, struct uio_info *info)
+{
+ void __iomem *reg_int_en = info->mem[0].internal_addr +
+ DPM_HOST_WIN0_OFFSET +
+ DPM_HOST_INT_EN0;
+ void __iomem *reg_int_stat = info->mem[0].internal_addr +
+ DPM_HOST_WIN0_OFFSET +
+ DPM_HOST_INT_STAT0;
+
+ /* check if an interrupt is enabled and active */
+ if ((ioread32(reg_int_en) & ioread32(reg_int_stat) &
+ DPM_HOST_INT_MASK) == 0) {
+ return IRQ_NONE;
+ }
+
+ /* disable interrupts */
+ iowrite32(ioread32(reg_int_en) & ~DPM_HOST_INT_GLOBAL_EN, reg_int_en);
+
+ return IRQ_HANDLED;
+}
+
+static void netx5152_init(struct uio_info *info)
+{
+ unsigned long win0_offset = DPM_HOST_WIN0_OFFSET;
+ struct fsl_elbc_gpcm *priv = info->priv;
+ const void *prop;
+
+ /* get an optional initial win0 offset */
+ prop = of_get_property(priv->dev->of_node,
+ "netx5152,init-win0-offset", NULL);
+ if (prop)
+ win0_offset = of_read_ulong(prop, 1);
+
+ /* disable interrupts */
+ iowrite32(0, info->mem[0].internal_addr + win0_offset +
+ DPM_HOST_INT_EN0);
+}
+
+static void netx5152_shutdown(struct uio_info *info, bool init_err)
+{
+ if (init_err)
+ return;
+
+ /* disable interrupts */
+ iowrite32(0, info->mem[0].internal_addr + DPM_HOST_WIN0_OFFSET +
+ DPM_HOST_INT_EN0);
+}
+#endif
+
+static void setup_periph(struct fsl_elbc_gpcm *priv,
+ const char *type)
+{
+#ifdef CONFIG_UIO_FSL_ELBC_GPCM_NETX5152
+ if (strcmp(type, "netx5152") == 0) {
+ priv->irq_handler = netx5152_irq_handler;
+ priv->init = netx5152_init;
+ priv->shutdown = netx5152_shutdown;
+ priv->name = "netX 51/52";
+ return;
+ }
+#endif
+}
+
+static int check_of_data(struct fsl_elbc_gpcm *priv,
+ struct resource *res,
+ u32 reg_br, u32 reg_or)
+{
+ /* check specified bank */
+ if (priv->bank >= MAX_BANKS) {
+ dev_err(priv->dev, "invalid bank\n");
+ return -ENODEV;
+ }
+
+ /* check specified mode (BR_MS_GPCM is 0) */
+ if ((reg_br & BR_MSEL) != BR_MS_GPCM) {
+ dev_err(priv->dev, "unsupported mode\n");
+ return -ENODEV;
+ }
+
+ /* check specified mask vs. resource size */
+ if ((~(reg_or & OR_GPCM_AM) + 1) != resource_size(res)) {
+ dev_err(priv->dev, "address mask / size mismatch\n");
+ return -ENODEV;
+ }
+
+ /* check specified address */
+ if ((reg_br & reg_or & BR_BA) != fsl_lbc_addr(res->start)) {
+ dev_err(priv->dev, "base address mismatch\n");
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static int get_of_data(struct fsl_elbc_gpcm *priv, struct device_node *node,
+ struct resource *res, u32 *reg_br,
+ u32 *reg_or, unsigned int *irq, char **name)
+{
+ const char *dt_name;
+ const char *type;
+ int ret;
+
+ /* get the memory resource */
+ ret = of_address_to_resource(node, 0, res);
+ if (ret) {
+ dev_err(priv->dev, "failed to get resource\n");
+ return ret;
+ }
+
+ /* get the bank number */
+ ret = of_property_read_u32(node, "reg", &priv->bank);
+ if (ret) {
+ dev_err(priv->dev, "failed to get bank number\n");
+ return ret;
+ }
+
+ /* get BR value to set */
+ ret = of_property_read_u32(node, "elbc-gpcm-br", reg_br);
+ if (ret) {
+ dev_err(priv->dev, "missing elbc-gpcm-br value\n");
+ return ret;
+ }
+
+ /* get OR value to set */
+ ret = of_property_read_u32(node, "elbc-gpcm-or", reg_or);
+ if (ret) {
+ dev_err(priv->dev, "missing elbc-gpcm-or value\n");
+ return ret;
+ }
+
+ /* get optional peripheral type */
+ priv->name = "generic";
+ if (of_property_read_string(node, "device_type", &type) == 0)
+ setup_periph(priv, type);
+
+ /* get optional irq value */
+ *irq = irq_of_parse_and_map(node, 0);
+
+ /* sanity check device tree data */
+ ret = check_of_data(priv, res, *reg_br, *reg_or);
+ if (ret)
+ return ret;
+
+ /* get optional uio name */
+ if (of_property_read_string(node, "uio_name", &dt_name) != 0)
+ dt_name = "eLBC_GPCM";
+ *name = kstrdup(dt_name, GFP_KERNEL);
+ if (!*name)
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int uio_fsl_elbc_gpcm_probe(struct platform_device *pdev)
+{
+ struct device_node *node = pdev->dev.of_node;
+ struct fsl_elbc_gpcm *priv;
+ struct uio_info *info;
+ char *uio_name = NULL;
+ struct resource res;
+ unsigned int irq;
+ u32 reg_br_cur;
+ u32 reg_or_cur;
+ u32 reg_br_new;
+ u32 reg_or_new;
+ int ret;
+
+ if (!fsl_lbc_ctrl_dev || !fsl_lbc_ctrl_dev->regs)
+ return -ENODEV;
+
+ /* allocate private data */
+ priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+ priv->dev = &pdev->dev;
+ priv->lbc = fsl_lbc_ctrl_dev->regs;
+
+ /* get device tree data */
+ ret = get_of_data(priv, node, &res, ®_br_new, ®_or_new,
+ &irq, &uio_name);
+ if (ret)
+ goto out_err0;
+
+ /* allocate UIO structure */
+ info = kzalloc(sizeof(*info), GFP_KERNEL);
+ if (!info) {
+ ret = -ENOMEM;
+ goto out_err0;
+ }
+
+ /* get current BR/OR values */
+ reg_br_cur = in_be32(&priv->lbc->bank[priv->bank].br);
+ reg_or_cur = in_be32(&priv->lbc->bank[priv->bank].or);
+
+ /* if bank already configured, make sure it matches */
+ if ((reg_br_cur & BR_V)) {
+ if ((reg_br_cur & BR_MSEL) != BR_MS_GPCM ||
+ (reg_br_cur & reg_or_cur & BR_BA)
+ != fsl_lbc_addr(res.start)) {
+ dev_err(priv->dev,
+ "bank in use by another peripheral\n");
+ ret = -ENODEV;
+ goto out_err1;
+ }
+
+ /* warn if behavior settings changing */
+ if ((reg_br_cur & ~(BR_BA | BR_V)) !=
+ (reg_br_new & ~(BR_BA | BR_V))) {
+ dev_warn(priv->dev,
+ "modifying BR settings: 0x%08x -> 0x%08x",
+ reg_br_cur, reg_br_new);
+ }
+ if ((reg_or_cur & ~OR_GPCM_AM) != (reg_or_new & ~OR_GPCM_AM)) {
+ dev_warn(priv->dev,
+ "modifying OR settings: 0x%08x -> 0x%08x",
+ reg_or_cur, reg_or_new);
+ }
+ }
+
+ /* configure the bank (force base address and GPCM) */
+ reg_br_new &= ~(BR_BA | BR_MSEL);
+ reg_br_new |= fsl_lbc_addr(res.start) | BR_MS_GPCM | BR_V;
+ out_be32(&priv->lbc->bank[priv->bank].or, reg_or_new);
+ out_be32(&priv->lbc->bank[priv->bank].br, reg_br_new);
+
+ /* map the memory resource */
+ info->mem[0].internal_addr = ioremap(res.start, resource_size(&res));
+ if (!info->mem[0].internal_addr) {
+ dev_err(priv->dev, "failed to map chip region\n");
+ ret = -ENODEV;
+ goto out_err1;
+ }
+
+ /* set all UIO data */
+ if (node->name)
+ info->mem[0].name = kstrdup(node->name, GFP_KERNEL);
+ info->mem[0].addr = res.start;
+ info->mem[0].size = resource_size(&res);
+ info->mem[0].memtype = UIO_MEM_PHYS;
+ info->priv = priv;
+ info->name = uio_name;
+ info->version = "0.0.1";
+ if (irq != NO_IRQ) {
+ if (priv->irq_handler) {
+ info->irq = irq;
+ info->irq_flags = IRQF_SHARED;
+ info->handler = priv->irq_handler;
+ } else {
+ irq = NO_IRQ;
+ dev_warn(priv->dev, "ignoring irq, no handler\n");
+ }
+ }
+
+ if (priv->init)
+ priv->init(info);
+
+ /* register UIO device */
+ if (uio_register_device(priv->dev, info) != 0) {
+ dev_err(priv->dev, "UIO registration failed\n");
+ ret = -ENODEV;
+ goto out_err2;
+ }
+
+ /* store private data */
+ platform_set_drvdata(pdev, info);
+
+ /* create sysfs files */
+ ret = device_create_file(priv->dev, &dev_attr_reg_br);
+ if (ret)
+ goto out_err3;
+ ret = device_create_file(priv->dev, &dev_attr_reg_or);
+ if (ret)
+ goto out_err4;
+
+ dev_info(priv->dev,
+ "eLBC/GPCM device (%s) at 0x%llx, bank %d, irq=%d\n",
+ priv->name, (unsigned long long)res.start, priv->bank,
+ irq != NO_IRQ ? irq : -1);
+
+ return 0;
+out_err4:
+ device_remove_file(priv->dev, &dev_attr_reg_br);
+out_err3:
+ platform_set_drvdata(pdev, NULL);
+ uio_unregister_device(info);
+out_err2:
+ if (priv->shutdown)
+ priv->shutdown(info, true);
+ iounmap(info->mem[0].internal_addr);
+out_err1:
+ kfree(info->mem[0].name);
+ kfree(info);
+out_err0:
+ kfree(uio_name);
+ kfree(priv);
+ return ret;
+}
+
+static int uio_fsl_elbc_gpcm_remove(struct platform_device *pdev)
+{
+ struct uio_info *info = platform_get_drvdata(pdev);
+ struct fsl_elbc_gpcm *priv = info->priv;
+
+ device_remove_file(priv->dev, &dev_attr_reg_or);
+ device_remove_file(priv->dev, &dev_attr_reg_br);
+ platform_set_drvdata(pdev, NULL);
+ uio_unregister_device(info);
+ if (priv->shutdown)
+ priv->shutdown(info, false);
+ iounmap(info->mem[0].internal_addr);
+ kfree(info->mem[0].name);
+ kfree(info->name);
+ kfree(info);
+ kfree(priv);
+
+ return 0;
+
+}
+
+static const struct of_device_id uio_fsl_elbc_gpcm_match[] = {
+ { .compatible = "fsl,elbc-gpcm-uio", },
+ {}
+};
+
+static struct platform_driver uio_fsl_elbc_gpcm_driver = {
+ .driver = {
+ .name = "fsl,elbc-gpcm-uio",
+ .owner = THIS_MODULE,
+ .of_match_table = uio_fsl_elbc_gpcm_match,
+ },
+ .probe = uio_fsl_elbc_gpcm_probe,
+ .remove = uio_fsl_elbc_gpcm_remove,
+};
+
+static int __init uio_fsl_elbc_gpcm_init(void)
+{
+ return platform_driver_register(&uio_fsl_elbc_gpcm_driver);
+}
+
+static void __exit uio_fsl_elbc_gpcm_exit(void)
+{
+ platform_driver_unregister(&uio_fsl_elbc_gpcm_driver);
+}
+
+module_init(uio_fsl_elbc_gpcm_init);
+module_exit(uio_fsl_elbc_gpcm_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("John Ogness <john.ogness@linutronix.de>");
+MODULE_DESCRIPTION("Freescale Enhanced Local Bus Controller GPCM driver");
gdev->info.handler = irqhandler;
gdev->pdev = pdev;
- if (uio_register_device(&pdev->dev, &gdev->info))
+ err = uio_register_device(&pdev->dev, &gdev->info);
+ if (err)
goto err_register;
pci_set_drvdata(pdev, gdev);
image = list_entry(resource->entry, struct vme_master_resource, list);
if (bridge->master_get == NULL) {
- printk(KERN_WARNING "vme_master_set not supported\n");
+ printk(KERN_WARNING "%s not supported\n", __func__);
return -EINVAL;
}
#define sink_ops(csdev) csdev->ops->sink_ops
#define link_ops(csdev) csdev->ops->link_ops
-#define CORESIGHT_DEBUGFS_ENTRY(__name, __entry_name, \
- __mode, __get, __set, __fmt) \
-DEFINE_SIMPLE_ATTRIBUTE(__name ## _ops, __get, __set, __fmt); \
-static const struct coresight_ops_entry __name ## _entry = { \
- .name = __entry_name, \
- .mode = __mode, \
- .ops = &__name ## _ops \
-}
-
/**
* struct coresight_ops_sink - basic operations for a sink
* Operations available for sinks
extern void coresight_unregister(struct coresight_device *csdev);
extern int coresight_enable(struct coresight_device *csdev);
extern void coresight_disable(struct coresight_device *csdev);
-extern int coresight_is_bit_set(u32 val, int position, int value);
extern int coresight_timeout(void __iomem *addr, u32 offset,
int position, int value);
-#ifdef CONFIG_OF
-extern struct coresight_platform_data *of_get_coresight_platform_data(
- struct device *dev, struct device_node *node);
-#endif
#else
static inline struct coresight_device *
coresight_register(struct coresight_desc *desc) { return NULL; }
static inline int
coresight_enable(struct coresight_device *csdev) { return -ENOSYS; }
static inline void coresight_disable(struct coresight_device *csdev) {}
-static inline int coresight_is_bit_set(u32 val, int position, int value)
- { return 0; }
static inline int coresight_timeout(void __iomem *addr, u32 offset,
int position, int value) { return 1; }
+#endif
+
#ifdef CONFIG_OF
+extern struct coresight_platform_data *of_get_coresight_platform_data(
+ struct device *dev, struct device_node *node);
+#else
static inline struct coresight_platform_data *of_get_coresight_platform_data(
struct device *dev, struct device_node *node) { return NULL; }
#endif
-#endif
#endif
u64 pfn_array[MAX_MULTIPAGE_BUFFER_COUNT];
};
+/*
+ * Multiple-page buffer array; the pfn array is variable size:
+ * The number of entries in the PFN array is determined by
+ * "len" and "offset".
+ */
+struct hv_mpb_array {
+ /* Length and Offset determines the # of pfns in the array */
+ u32 len;
+ u32 offset;
+ u64 pfn_array[];
+};
+
/* 0x18 includes the proprietary packet header */
#define MAX_PAGE_BUFFER_PACKET (0x18 + \
(sizeof(struct hv_page_buffer) * \
*/
void (*sc_creation_callback)(struct vmbus_channel *new_sc);
- spinlock_t sc_lock;
+ /*
+ * The spinlock to protect the structure. It is being used to protect
+ * test-and-set access to various attributes of the structure as well
+ * as all sc_list operations.
+ */
+ spinlock_t lock;
/*
* All Sub-channels of a primary channel are linked here.
*/
struct hv_multipage_buffer range;
} __packed;
+/* The format must be the same as struct vmdata_gpa_direct */
+struct vmbus_packet_mpb_array {
+ u16 type;
+ u16 dataoffset8;
+ u16 length8;
+ u16 flags;
+ u64 transactionid;
+ u32 reserved;
+ u32 rangecount; /* Always 1 in this case */
+ struct hv_mpb_array range;
+} __packed;
+
extern int vmbus_open(struct vmbus_channel *channel,
u32 send_ringbuffersize,
u32 bufferlen,
u64 requestid);
+extern int vmbus_sendpacket_mpb_desc(struct vmbus_channel *channel,
+ struct vmbus_packet_mpb_array *mpb,
+ u32 desc_size,
+ void *buffer,
+ u32 bufferlen,
+ u64 requestid);
+
extern int vmbus_establish_gpadl(struct vmbus_channel *channel,
void *kbuffer,
u32 size,
void mei_cl_driver_unregister(struct mei_cl_driver *driver);
-int mei_cl_send(struct mei_cl_device *device, u8 *buf, size_t length);
-int mei_cl_recv(struct mei_cl_device *device, u8 *buf, size_t length);
+ssize_t mei_cl_send(struct mei_cl_device *device, u8 *buf, size_t length);
+ssize_t mei_cl_recv(struct mei_cl_device *device, u8 *buf, size_t length);
typedef void (*mei_cl_event_cb_t)(struct mei_cl_device *device,
u32 events, void *context);
* @alter contains the flag indicating whether changes are to be made.
* Return 0 if permission is granted.
*
+ * @binder_set_context_mgr
+ * Check whether @mgr is allowed to be the binder context manager.
+ * @mgr contains the task_struct for the task being registered.
+ * Return 0 if permission is granted.
+ * @binder_transaction
+ * Check whether @from is allowed to invoke a binder transaction call
+ * to @to.
+ * @from contains the task_struct for the sending task.
+ * @to contains the task_struct for the receiving task.
+ * @binder_transfer_binder
+ * Check whether @from is allowed to transfer a binder reference to @to.
+ * @from contains the task_struct for the sending task.
+ * @to contains the task_struct for the receiving task.
+ * @binder_transfer_file
+ * Check whether @from is allowed to transfer @file to @to.
+ * @from contains the task_struct for the sending task.
+ * @file contains the struct file being transferred.
+ * @to contains the task_struct for the receiving task.
+ *
* @ptrace_access_check:
* Check permission before allowing the current process to trace the
* @child process.
struct security_operations {
char name[SECURITY_NAME_MAX + 1];
+ int (*binder_set_context_mgr) (struct task_struct *mgr);
+ int (*binder_transaction) (struct task_struct *from,
+ struct task_struct *to);
+ int (*binder_transfer_binder) (struct task_struct *from,
+ struct task_struct *to);
+ int (*binder_transfer_file) (struct task_struct *from,
+ struct task_struct *to, struct file *file);
+
int (*ptrace_access_check) (struct task_struct *child, unsigned int mode);
int (*ptrace_traceme) (struct task_struct *parent);
int (*capget) (struct task_struct *target,
/* Security operations */
+int security_binder_set_context_mgr(struct task_struct *mgr);
+int security_binder_transaction(struct task_struct *from,
+ struct task_struct *to);
+int security_binder_transfer_binder(struct task_struct *from,
+ struct task_struct *to);
+int security_binder_transfer_file(struct task_struct *from,
+ struct task_struct *to, struct file *file);
int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
int security_ptrace_traceme(struct task_struct *parent);
int security_capget(struct task_struct *target,
return 0;
}
+static inline int security_binder_set_context_mgr(struct task_struct *mgr)
+{
+ return 0;
+}
+
+static inline int security_binder_transaction(struct task_struct *from,
+ struct task_struct *to)
+{
+ return 0;
+}
+
+static inline int security_binder_transfer_binder(struct task_struct *from,
+ struct task_struct *to)
+{
+ return 0;
+}
+
+static inline int security_binder_transfer_file(struct task_struct *from,
+ struct task_struct *to,
+ struct file *file)
+{
+ return 0;
+}
+
static inline int security_ptrace_access_check(struct task_struct *child,
unsigned int mode)
{
extern long st_register(struct st_proto_s *);
extern long st_unregister(struct st_proto_s *);
+extern struct ti_st_plat_data *dt_pdata;
/*
* header information used by st_core.c
struct completion kim_rcvd, ldisc_installed;
char resp_buffer[30];
const struct firmware *fw_entry;
- long nshutdown;
+ unsigned nshutdown;
unsigned long rx_state;
unsigned long rx_count;
struct sk_buff *rx_skb;
struct chip_version version;
unsigned char ldisc_install;
unsigned char dev_name[UART_DEV_NAME_LEN + 1];
- unsigned char flow_cntrl;
- unsigned long baud_rate;
+ unsigned flow_cntrl;
+ unsigned baud_rate;
};
/**
*
*/
struct ti_st_plat_data {
- long nshutdown_gpio;
+ u32 nshutdown_gpio;
unsigned char dev_name[UART_DEV_NAME_LEN]; /* uart name */
- unsigned char flow_cntrl; /* flow control flag */
- unsigned long baud_rate;
+ u32 flow_cntrl; /* flow control flag */
+ u32 baud_rate;
int (*suspend)(struct platform_device *, pm_message_t);
int (*resume)(struct platform_device *);
int (*chip_enable) (struct kim_data_s *);
#include <linux/security.h>
+static int cap_binder_set_context_mgr(struct task_struct *mgr)
+{
+ return 0;
+}
+
+static int cap_binder_transaction(struct task_struct *from,
+ struct task_struct *to)
+{
+ return 0;
+}
+
+static int cap_binder_transfer_binder(struct task_struct *from,
+ struct task_struct *to)
+{
+ return 0;
+}
+
+static int cap_binder_transfer_file(struct task_struct *from,
+ struct task_struct *to, struct file *file)
+{
+ return 0;
+}
+
static int cap_syslog(int type)
{
return 0;
void __init security_fixup_ops(struct security_operations *ops)
{
+ set_to_cap_if_null(ops, binder_set_context_mgr);
+ set_to_cap_if_null(ops, binder_transaction);
+ set_to_cap_if_null(ops, binder_transfer_binder);
+ set_to_cap_if_null(ops, binder_transfer_file);
set_to_cap_if_null(ops, ptrace_access_check);
set_to_cap_if_null(ops, ptrace_traceme);
set_to_cap_if_null(ops, capget);
/* Security operations */
+int security_binder_set_context_mgr(struct task_struct *mgr)
+{
+ return security_ops->binder_set_context_mgr(mgr);
+}
+
+int security_binder_transaction(struct task_struct *from,
+ struct task_struct *to)
+{
+ return security_ops->binder_transaction(from, to);
+}
+
+int security_binder_transfer_binder(struct task_struct *from,
+ struct task_struct *to)
+{
+ return security_ops->binder_transfer_binder(from, to);
+}
+
+int security_binder_transfer_file(struct task_struct *from,
+ struct task_struct *to, struct file *file)
+{
+ return security_ops->binder_transfer_file(from, to, file);
+}
+
int security_ptrace_access_check(struct task_struct *child, unsigned int mode)
{
#ifdef CONFIG_SECURITY_YAMA_STACKED
/* Hook functions begin here. */
+static int selinux_binder_set_context_mgr(struct task_struct *mgr)
+{
+ u32 mysid = current_sid();
+ u32 mgrsid = task_sid(mgr);
+
+ return avc_has_perm(mysid, mgrsid, SECCLASS_BINDER,
+ BINDER__SET_CONTEXT_MGR, NULL);
+}
+
+static int selinux_binder_transaction(struct task_struct *from,
+ struct task_struct *to)
+{
+ u32 mysid = current_sid();
+ u32 fromsid = task_sid(from);
+ u32 tosid = task_sid(to);
+ int rc;
+
+ if (mysid != fromsid) {
+ rc = avc_has_perm(mysid, fromsid, SECCLASS_BINDER,
+ BINDER__IMPERSONATE, NULL);
+ if (rc)
+ return rc;
+ }
+
+ return avc_has_perm(fromsid, tosid, SECCLASS_BINDER, BINDER__CALL,
+ NULL);
+}
+
+static int selinux_binder_transfer_binder(struct task_struct *from,
+ struct task_struct *to)
+{
+ u32 fromsid = task_sid(from);
+ u32 tosid = task_sid(to);
+
+ return avc_has_perm(fromsid, tosid, SECCLASS_BINDER, BINDER__TRANSFER,
+ NULL);
+}
+
+static int selinux_binder_transfer_file(struct task_struct *from,
+ struct task_struct *to,
+ struct file *file)
+{
+ u32 sid = task_sid(to);
+ struct file_security_struct *fsec = file->f_security;
+ struct inode *inode = file->f_path.dentry->d_inode;
+ struct inode_security_struct *isec = inode->i_security;
+ struct common_audit_data ad;
+ int rc;
+
+ ad.type = LSM_AUDIT_DATA_PATH;
+ ad.u.path = file->f_path;
+
+ if (sid != fsec->sid) {
+ rc = avc_has_perm(sid, fsec->sid,
+ SECCLASS_FD,
+ FD__USE,
+ &ad);
+ if (rc)
+ return rc;
+ }
+
+ if (unlikely(IS_PRIVATE(inode)))
+ return 0;
+
+ return avc_has_perm(sid, isec->sid, isec->sclass, file_to_av(file),
+ &ad);
+}
+
static int selinux_ptrace_access_check(struct task_struct *child,
unsigned int mode)
{
static struct security_operations selinux_ops = {
.name = "selinux",
+ .binder_set_context_mgr = selinux_binder_set_context_mgr,
+ .binder_transaction = selinux_binder_transaction,
+ .binder_transfer_binder = selinux_binder_transfer_binder,
+ .binder_transfer_file = selinux_binder_transfer_file,
+
.ptrace_access_check = selinux_ptrace_access_check,
.ptrace_traceme = selinux_ptrace_traceme,
.capget = selinux_capget,
{ "kernel_service", { "use_as_override", "create_files_as", NULL } },
{ "tun_socket",
{ COMMON_SOCK_PERMS, "attach_queue", NULL } },
+ { "binder", { "impersonate", "call", "set_context_mgr", "transfer",
+ NULL } },
{ NULL }
};
WARNINGS = -Wall -Wextra
CFLAGS = $(WARNINGS) -g $(PTHREAD_LIBS)
-all: hv_kvp_daemon hv_vss_daemon
+all: hv_kvp_daemon hv_vss_daemon hv_fcopy_daemon
%: %.c
$(CC) $(CFLAGS) -o $@ $^
clean:
- $(RM) hv_kvp_daemon hv_vss_daemon
+ $(RM) hv_kvp_daemon hv_vss_daemon hv_fcopy_daemon
int error = HV_E_FAIL;
char *q, *p;
- /*
- * If possile append a path seperator to the path.
- */
- if (strlen((char *)smsg->path_name) < (W_MAX_PATH - 2))
- strcat((char *)smsg->path_name, "/");
-
p = (char *)smsg->path_name;
snprintf(target_fname, sizeof(target_fname), "%s/%s",
- (char *)smsg->path_name, smsg->file_name);
+ (char *)smsg->path_name, (char *)smsg->file_name);
syslog(LOG_INFO, "Target file name: %s", target_fname);
/*
int main(int argc, char *argv[])
{
- int fd, fcopy_fd, len;
+ int fcopy_fd, len;
int error;
int daemonize = 1, long_index = 0, opt;
int version = FCOPY_CURRENT_VERSION;
static void kvp_update_file(int pool)
{
FILE *filep;
- size_t bytes_written;
/*
* We are going to write our in-memory registry out to
exit(EXIT_FAILURE);
}
- bytes_written = fwrite(kvp_file_info[pool].records,
- sizeof(struct kvp_record),
+ fwrite(kvp_file_info[pool].records, sizeof(struct kvp_record),
kvp_file_info[pool].num_records, filep);
if (ferror(filep) || fclose(filep)) {
return 0;
}
-static int kvp_key_delete(int pool, const char *key, int key_size)
+static int kvp_key_delete(int pool, const __u8 *key, int key_size)
{
int i;
int j, k;
return 1;
}
-static int kvp_key_add_or_modify(int pool, const char *key, int key_size, const char *value,
- int value_size)
+static int kvp_key_add_or_modify(int pool, const __u8 *key, int key_size,
+ const __u8 *value, int value_size)
{
int i;
int num_records;
return 0;
}
-static int kvp_get_value(int pool, const char *key, int key_size, char *value,
+static int kvp_get_value(int pool, const __u8 *key, int key_size, __u8 *value,
int value_size)
{
int i;
return 1;
}
-static int kvp_pool_enumerate(int pool, int index, char *key, int key_size,
- char *value, int value_size)
+static int kvp_pool_enumerate(int pool, int index, __u8 *key, int key_size,
+ __u8 *value, int value_size)
{
struct kvp_record *record;
char *p, *x;
char buf[256];
char addr_file[256];
- int i;
+ unsigned int i;
char *mac_addr = NULL;
snprintf(addr_file, sizeof(addr_file), "%s%s%s", "/sys/class/net/",
char buf[256];
char *kvp_net_dir = "/sys/class/net/";
char dev_id[256];
- int i;
+ unsigned int i;
dir = opendir(kvp_net_dir);
if (dir == NULL)
static void kvp_process_ipconfig_file(char *cmd,
- char *config_buf, int len,
+ char *config_buf, unsigned int len,
int element_size, int offset)
{
char buf[256];
if (offset == 0)
memset(config_buf, 0, len);
while ((p = fgets(buf, sizeof(buf), file)) != NULL) {
- if ((len - strlen(config_buf)) < (element_size + 1))
+ if (len < strlen(config_buf) + element_size + 1)
break;
x = strchr(p, '\n');
static int
kvp_get_ip_info(int family, char *if_name, int op,
- void *out_buffer, int length)
+ void *out_buffer, unsigned int length)
{
struct ifaddrs *ifap;
struct ifaddrs *curp;
weight += hweight32(&w[i]);
sprintf(cidr_mask, "/%d", weight);
- if ((length - sn_offset) <
- (strlen(cidr_mask) + 1))
+ if (length < sn_offset + strlen(cidr_mask) + 1)
goto gather_ipaddr;
if (sn_offset == 0)
if (error)
goto setval_error;
+ /*
+ * The dhcp_enabled flag is only for IPv4. In the case the host only
+ * injects an IPv6 address, the flag is true, but we still need to
+ * proceed to parse and pass the IPv6 information to the
+ * disto-specific script hv_set_ifconfig.
+ */
if (new_val->dhcp_enabled) {
error = kvp_write_file(file, "BOOTPROTO", "", "dhcp");
if (error)
goto setval_error;
- /*
- * We are done!.
- */
- goto setval_done;
-
} else {
error = kvp_write_file(file, "BOOTPROTO", "", "none");
if (error)
if (error)
goto setval_error;
-setval_done:
fclose(file);
/*
projects / linux-drm-fsl-dcu.git / commitdiff