diff --git a/Documentation/ABI/stable/sysfs-bus-vmbus b/Documentation/ABI/stable/sysfs-bus-vmbus
index 826689dcc2e67370102d73eae9c359e9547df710..8e8d167eca3145c049e44a9d9b8b0bdbe17c6838 100644
--- a/Documentation/ABI/stable/sysfs-bus-vmbus
+++ b/Documentation/ABI/stable/sysfs-bus-vmbus
@@ -81,7 +81,9 @@ What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/latency
Date: September. 2017
KernelVersion: 4.14
Contact: Stephen Hemminger <sthemmin@microsoft.com>
-Description: Channel signaling latency
+Description: Channel signaling latency. This file is available only for
+ performance critical channels (storage, network, etc.) that use
+ the monitor page mechanism.
Users: Debugging tools
What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/out_mask
@@ -95,7 +97,9 @@ What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/pending
Date: September. 2017
KernelVersion: 4.14
Contact: Stephen Hemminger <sthemmin@microsoft.com>
-Description: Channel interrupt pending state
+Description: Channel interrupt pending state. This file is available only for
+ performance critical channels (storage, network, etc.) that use
+ the monitor page mechanism.
Users: Debugging tools
What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/read_avail
@@ -137,7 +141,9 @@ What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/monitor_id
Date: January. 2018
KernelVersion: 4.16
Contact: Stephen Hemminger <sthemmin@microsoft.com>
-Description: Monitor bit associated with channel
+Description: Monitor bit associated with channel. This file is available only
+ for performance critical channels (storage, network, etc.) that
+ use the monitor page mechanism.
Users: Debugging tools and userspace drivers
What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/ring
diff --git a/drivers/android/binder_alloc.c b/drivers/android/binder_alloc.c
index 195f120c4e8c9aefa9f6e57e8ce400a8ddde95fb..bb929eb8711659700e9839bafb2690fc464d27dd 100644
--- a/drivers/android/binder_alloc.c
+++ b/drivers/android/binder_alloc.c
@@ -931,8 +931,8 @@ enum lru_status binder_alloc_free_page(struct list_head *item,
mm = alloc->vma_vm_mm;
if (!mmget_not_zero(mm))
goto err_mmget;
- if (!down_write_trylock(&mm->mmap_sem))
- goto err_down_write_mmap_sem_failed;
+ if (!down_read_trylock(&mm->mmap_sem))
+ goto err_down_read_mmap_sem_failed;
vma = binder_alloc_get_vma(alloc);
list_lru_isolate(lru, item);
@@ -945,7 +945,7 @@ enum lru_status binder_alloc_free_page(struct list_head *item,
trace_binder_unmap_user_end(alloc, index);
}
- up_write(&mm->mmap_sem);
+ up_read(&mm->mmap_sem);
mmput(mm);
trace_binder_unmap_kernel_start(alloc, index);
@@ -959,7 +959,7 @@ enum lru_status binder_alloc_free_page(struct list_head *item,
mutex_unlock(&alloc->mutex);
return LRU_REMOVED_RETRY;
-err_down_write_mmap_sem_failed:
+err_down_read_mmap_sem_failed:
mmput_async(mm);
err_mmget:
err_page_already_freed:
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
index 62703b354d6dfba9b63f0358c8972bd881397300..3fc0b247a8072ded05dd164a3b4fe1ee551854d7 100644
--- a/drivers/hv/channel_mgmt.c
+++ b/drivers/hv/channel_mgmt.c
@@ -336,6 +336,8 @@ static struct vmbus_channel *alloc_channel(void)
tasklet_init(&channel->callback_event,
vmbus_on_event, (unsigned long)channel);
+ hv_ringbuffer_pre_init(channel);
+
return channel;
}
@@ -345,6 +347,7 @@ static struct vmbus_channel *alloc_channel(void)
static void free_channel(struct vmbus_channel *channel)
{
tasklet_kill(&channel->callback_event);
+ vmbus_remove_channel_attr_group(channel);
kobject_put(&channel->kobj);
}
diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c
index 632d25674e7feef8e8db91820ab22a63d6c80de9..45653029ee18fe8050932c94bb7cff29d75a61c3 100644
--- a/drivers/hv/hv.c
+++ b/drivers/hv/hv.c
@@ -408,7 +408,6 @@ int hv_synic_cleanup(unsigned int cpu)
clockevents_unbind_device(hv_cpu->clk_evt, cpu);
hv_ce_shutdown(hv_cpu->clk_evt);
- put_cpu_ptr(hv_cpu);
}
hv_get_synint_state(VMBUS_MESSAGE_SINT, shared_sint.as_uint64);
diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
index cb86b133eb4d945d6a1811362afc8923e666f6ef..e5467b821f415bbeb08c68919b393a37f21f5eae 100644
--- a/drivers/hv/hyperv_vmbus.h
+++ b/drivers/hv/hyperv_vmbus.h
@@ -193,6 +193,7 @@ extern void hv_synic_clockevents_cleanup(void);
/* Interface */
+void hv_ringbuffer_pre_init(struct vmbus_channel *channel);
int hv_ringbuffer_init(struct hv_ring_buffer_info *ring_info,
struct page *pages, u32 pagecnt);
@@ -321,6 +322,8 @@ void vmbus_device_unregister(struct hv_device *device_obj);
int vmbus_add_channel_kobj(struct hv_device *device_obj,
struct vmbus_channel *channel);
+void vmbus_remove_channel_attr_group(struct vmbus_channel *channel);
+
struct vmbus_channel *relid2channel(u32 relid);
void vmbus_free_channels(void);
diff --git a/drivers/hv/ring_buffer.c b/drivers/hv/ring_buffer.c
index 9e8b31ccc14262a736f11109d6021c621d9d453e..121a01c43298fcdc8745b69dfcf97ac98790ef09 100644
--- a/drivers/hv/ring_buffer.c
+++ b/drivers/hv/ring_buffer.c
@@ -166,14 +166,18 @@ hv_get_ringbuffer_availbytes(const struct hv_ring_buffer_info *rbi,
}
/* Get various debug metrics for the specified ring buffer. */
-int hv_ringbuffer_get_debuginfo(const struct hv_ring_buffer_info *ring_info,
+int hv_ringbuffer_get_debuginfo(struct hv_ring_buffer_info *ring_info,
struct hv_ring_buffer_debug_info *debug_info)
{
u32 bytes_avail_towrite;
u32 bytes_avail_toread;
- if (!ring_info->ring_buffer)
+ mutex_lock(&ring_info->ring_buffer_mutex);
+
+ if (!ring_info->ring_buffer) {
+ mutex_unlock(&ring_info->ring_buffer_mutex);
return -EINVAL;
+ }
hv_get_ringbuffer_availbytes(ring_info,
&bytes_avail_toread,
@@ -184,10 +188,19 @@ int hv_ringbuffer_get_debuginfo(const struct hv_ring_buffer_info *ring_info,
debug_info->current_write_index = ring_info->ring_buffer->write_index;
debug_info->current_interrupt_mask
= ring_info->ring_buffer->interrupt_mask;
+ mutex_unlock(&ring_info->ring_buffer_mutex);
+
return 0;
}
EXPORT_SYMBOL_GPL(hv_ringbuffer_get_debuginfo);
+/* Initialize a channel's ring buffer info mutex locks */
+void hv_ringbuffer_pre_init(struct vmbus_channel *channel)
+{
+ mutex_init(&channel->inbound.ring_buffer_mutex);
+ mutex_init(&channel->outbound.ring_buffer_mutex);
+}
+
/* Initialize the ring buffer. */
int hv_ringbuffer_init(struct hv_ring_buffer_info *ring_info,
struct page *pages, u32 page_cnt)
@@ -197,8 +210,6 @@ int hv_ringbuffer_init(struct hv_ring_buffer_info *ring_info,
BUILD_BUG_ON((sizeof(struct hv_ring_buffer) != PAGE_SIZE));
- memset(ring_info, 0, sizeof(struct hv_ring_buffer_info));
-
/*
* First page holds struct hv_ring_buffer, do wraparound mapping for
* the rest.
@@ -232,6 +243,7 @@ int hv_ringbuffer_init(struct hv_ring_buffer_info *ring_info,
reciprocal_value(ring_info->ring_size / 10);
ring_info->ring_datasize = ring_info->ring_size -
sizeof(struct hv_ring_buffer);
+ ring_info->priv_read_index = 0;
spin_lock_init(&ring_info->ring_lock);
@@ -241,8 +253,10 @@ int hv_ringbuffer_init(struct hv_ring_buffer_info *ring_info,
/* Cleanup the ring buffer. */
void hv_ringbuffer_cleanup(struct hv_ring_buffer_info *ring_info)
{
+ mutex_lock(&ring_info->ring_buffer_mutex);
vunmap(ring_info->ring_buffer);
ring_info->ring_buffer = NULL;
+ mutex_unlock(&ring_info->ring_buffer_mutex);
}
/* Write to the ring buffer. */
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 000b53e5a17a55c8c20add4d1036cac250f40c80..aa25f3bcbdea4929d96bc54f98c6b7bfafd3f022 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -630,7 +630,36 @@ static struct attribute *vmbus_dev_attrs[] = {
&dev_attr_driver_override.attr,
NULL,
};
-ATTRIBUTE_GROUPS(vmbus_dev);
+
+/*
+ * Device-level attribute_group callback function. Returns the permission for
+ * each attribute, and returns 0 if an attribute is not visible.
+ */
+static umode_t vmbus_dev_attr_is_visible(struct kobject *kobj,
+ struct attribute *attr, int idx)
+{
+ struct device *dev = kobj_to_dev(kobj);
+ const struct hv_device *hv_dev = device_to_hv_device(dev);
+
+ /* Hide the monitor attributes if the monitor mechanism is not used. */
+ if (!hv_dev->channel->offermsg.monitor_allocated &&
+ (attr == &dev_attr_monitor_id.attr ||
+ attr == &dev_attr_server_monitor_pending.attr ||
+ attr == &dev_attr_client_monitor_pending.attr ||
+ attr == &dev_attr_server_monitor_latency.attr ||
+ attr == &dev_attr_client_monitor_latency.attr ||
+ attr == &dev_attr_server_monitor_conn_id.attr ||
+ attr == &dev_attr_client_monitor_conn_id.attr))
+ return 0;
+
+ return attr->mode;
+}
+
+static const struct attribute_group vmbus_dev_group = {
+ .attrs = vmbus_dev_attrs,
+ .is_visible = vmbus_dev_attr_is_visible
+};
+__ATTRIBUTE_GROUPS(vmbus_dev);
/*
* vmbus_uevent - add uevent for our device
@@ -1381,7 +1410,7 @@ static void vmbus_chan_release(struct kobject *kobj)
struct vmbus_chan_attribute {
struct attribute attr;
- ssize_t (*show)(const struct vmbus_channel *chan, char *buf);
+ ssize_t (*show)(struct vmbus_channel *chan, char *buf);
ssize_t (*store)(struct vmbus_channel *chan,
const char *buf, size_t count);
};
@@ -1400,15 +1429,12 @@ static ssize_t vmbus_chan_attr_show(struct kobject *kobj,
{
const struct vmbus_chan_attribute *attribute
= container_of(attr, struct vmbus_chan_attribute, attr);
- const struct vmbus_channel *chan
+ struct vmbus_channel *chan
= container_of(kobj, struct vmbus_channel, kobj);
if (!attribute->show)
return -EIO;
- if (chan->state != CHANNEL_OPENED_STATE)
- return -EINVAL;
-
return attribute->show(chan, buf);
}
@@ -1416,45 +1442,81 @@ static const struct sysfs_ops vmbus_chan_sysfs_ops = {
.show = vmbus_chan_attr_show,
};
-static ssize_t out_mask_show(const struct vmbus_channel *channel, char *buf)
+static ssize_t out_mask_show(struct vmbus_channel *channel, char *buf)
{
- const struct hv_ring_buffer_info *rbi = &channel->outbound;
+ struct hv_ring_buffer_info *rbi = &channel->outbound;
+ ssize_t ret;
+
+ mutex_lock(&rbi->ring_buffer_mutex);
+ if (!rbi->ring_buffer) {
+ mutex_unlock(&rbi->ring_buffer_mutex);
+ return -EINVAL;
+ }
- return sprintf(buf, "%u\n", rbi->ring_buffer->interrupt_mask);
+ ret = sprintf(buf, "%u\n", rbi->ring_buffer->interrupt_mask);
+ mutex_unlock(&rbi->ring_buffer_mutex);
+ return ret;
}
static VMBUS_CHAN_ATTR_RO(out_mask);
-static ssize_t in_mask_show(const struct vmbus_channel *channel, char *buf)
+static ssize_t in_mask_show(struct vmbus_channel *channel, char *buf)
{
- const struct hv_ring_buffer_info *rbi = &channel->inbound;
+ struct hv_ring_buffer_info *rbi = &channel->inbound;
+ ssize_t ret;
+
+ mutex_lock(&rbi->ring_buffer_mutex);
+ if (!rbi->ring_buffer) {
+ mutex_unlock(&rbi->ring_buffer_mutex);
+ return -EINVAL;
+ }
- return sprintf(buf, "%u\n", rbi->ring_buffer->interrupt_mask);
+ ret = sprintf(buf, "%u\n", rbi->ring_buffer->interrupt_mask);
+ mutex_unlock(&rbi->ring_buffer_mutex);
+ return ret;
}
static VMBUS_CHAN_ATTR_RO(in_mask);
-static ssize_t read_avail_show(const struct vmbus_channel *channel, char *buf)
+static ssize_t read_avail_show(struct vmbus_channel *channel, char *buf)
{
- const struct hv_ring_buffer_info *rbi = &channel->inbound;
+ struct hv_ring_buffer_info *rbi = &channel->inbound;
+ ssize_t ret;
+
+ mutex_lock(&rbi->ring_buffer_mutex);
+ if (!rbi->ring_buffer) {
+ mutex_unlock(&rbi->ring_buffer_mutex);
+ return -EINVAL;
+ }
- return sprintf(buf, "%u\n", hv_get_bytes_to_read(rbi));
+ ret = sprintf(buf, "%u\n", hv_get_bytes_to_read(rbi));
+ mutex_unlock(&rbi->ring_buffer_mutex);
+ return ret;
}
static VMBUS_CHAN_ATTR_RO(read_avail);
-static ssize_t write_avail_show(const struct vmbus_channel *channel, char *buf)
+static ssize_t write_avail_show(struct vmbus_channel *channel, char *buf)
{
- const struct hv_ring_buffer_info *rbi = &channel->outbound;
+ struct hv_ring_buffer_info *rbi = &channel->outbound;
+ ssize_t ret;
+
+ mutex_lock(&rbi->ring_buffer_mutex);
+ if (!rbi->ring_buffer) {
+ mutex_unlock(&rbi->ring_buffer_mutex);
+ return -EINVAL;
+ }
- return sprintf(buf, "%u\n", hv_get_bytes_to_write(rbi));
+ ret = sprintf(buf, "%u\n", hv_get_bytes_to_write(rbi));
+ mutex_unlock(&rbi->ring_buffer_mutex);
+ return ret;
}
static VMBUS_CHAN_ATTR_RO(write_avail);
-static ssize_t show_target_cpu(const struct vmbus_channel *channel, char *buf)
+static ssize_t show_target_cpu(struct vmbus_channel *channel, char *buf)
{
return sprintf(buf, "%u\n", channel->target_cpu);
}
static VMBUS_CHAN_ATTR(cpu, S_IRUGO, show_target_cpu, NULL);
-static ssize_t channel_pending_show(const struct vmbus_channel *channel,
+static ssize_t channel_pending_show(struct vmbus_channel *channel,
char *buf)
{
return sprintf(buf, "%d\n",
@@ -1463,7 +1525,7 @@ static ssize_t channel_pending_show(const struct vmbus_channel *channel,
}
static VMBUS_CHAN_ATTR(pending, S_IRUGO, channel_pending_show, NULL);
-static ssize_t channel_latency_show(const struct vmbus_channel *channel,
+static ssize_t channel_latency_show(struct vmbus_channel *channel,
char *buf)
{
return sprintf(buf, "%d\n",
@@ -1472,19 +1534,19 @@ static ssize_t channel_latency_show(const struct vmbus_channel *channel,
}
static VMBUS_CHAN_ATTR(latency, S_IRUGO, channel_latency_show, NULL);
-static ssize_t channel_interrupts_show(const struct vmbus_channel *channel, char *buf)
+static ssize_t channel_interrupts_show(struct vmbus_channel *channel, char *buf)
{
return sprintf(buf, "%llu\n", channel->interrupts);
}
static VMBUS_CHAN_ATTR(interrupts, S_IRUGO, channel_interrupts_show, NULL);
-static ssize_t channel_events_show(const struct vmbus_channel *channel, char *buf)
+static ssize_t channel_events_show(struct vmbus_channel *channel, char *buf)
{
return sprintf(buf, "%llu\n", channel->sig_events);
}
static VMBUS_CHAN_ATTR(events, S_IRUGO, channel_events_show, NULL);
-static ssize_t channel_intr_in_full_show(const struct vmbus_channel *channel,
+static ssize_t channel_intr_in_full_show(struct vmbus_channel *channel,
char *buf)
{
return sprintf(buf, "%llu\n",
@@ -1492,7 +1554,7 @@ static ssize_t channel_intr_in_full_show(const struct vmbus_channel *channel,
}
static VMBUS_CHAN_ATTR(intr_in_full, 0444, channel_intr_in_full_show, NULL);
-static ssize_t channel_intr_out_empty_show(const struct vmbus_channel *channel,
+static ssize_t channel_intr_out_empty_show(struct vmbus_channel *channel,
char *buf)
{
return sprintf(buf, "%llu\n",
@@ -1500,7 +1562,7 @@ static ssize_t channel_intr_out_empty_show(const struct vmbus_channel *channel,
}
static VMBUS_CHAN_ATTR(intr_out_empty, 0444, channel_intr_out_empty_show, NULL);
-static ssize_t channel_out_full_first_show(const struct vmbus_channel *channel,
+static ssize_t channel_out_full_first_show(struct vmbus_channel *channel,
char *buf)
{
return sprintf(buf, "%llu\n",
@@ -1508,7 +1570,7 @@ static ssize_t channel_out_full_first_show(const struct vmbus_channel *channel,
}
static VMBUS_CHAN_ATTR(out_full_first, 0444, channel_out_full_first_show, NULL);
-static ssize_t channel_out_full_total_show(const struct vmbus_channel *channel,
+static ssize_t channel_out_full_total_show(struct vmbus_channel *channel,
char *buf)
{
return sprintf(buf, "%llu\n",
@@ -1516,14 +1578,14 @@ static ssize_t channel_out_full_total_show(const struct vmbus_channel *channel,
}
static VMBUS_CHAN_ATTR(out_full_total, 0444, channel_out_full_total_show, NULL);
-static ssize_t subchannel_monitor_id_show(const struct vmbus_channel *channel,
+static ssize_t subchannel_monitor_id_show(struct vmbus_channel *channel,
char *buf)
{
return sprintf(buf, "%u\n", channel->offermsg.monitorid);
}
static VMBUS_CHAN_ATTR(monitor_id, S_IRUGO, subchannel_monitor_id_show, NULL);
-static ssize_t subchannel_id_show(const struct vmbus_channel *channel,
+static ssize_t subchannel_id_show(struct vmbus_channel *channel,
char *buf)
{
return sprintf(buf, "%u\n",
@@ -1550,10 +1612,34 @@ static struct attribute *vmbus_chan_attrs[] = {
NULL
};
+/*
+ * Channel-level attribute_group callback function. Returns the permission for
+ * each attribute, and returns 0 if an attribute is not visible.
+ */
+static umode_t vmbus_chan_attr_is_visible(struct kobject *kobj,
+ struct attribute *attr, int idx)
+{
+ const struct vmbus_channel *channel =
+ container_of(kobj, struct vmbus_channel, kobj);
+
+ /* Hide the monitor attributes if the monitor mechanism is not used. */
+ if (!channel->offermsg.monitor_allocated &&
+ (attr == &chan_attr_pending.attr ||
+ attr == &chan_attr_latency.attr ||
+ attr == &chan_attr_monitor_id.attr))
+ return 0;
+
+ return attr->mode;
+}
+
+static struct attribute_group vmbus_chan_group = {
+ .attrs = vmbus_chan_attrs,
+ .is_visible = vmbus_chan_attr_is_visible
+};
+
static struct kobj_type vmbus_chan_ktype = {
.sysfs_ops = &vmbus_chan_sysfs_ops,
.release = vmbus_chan_release,
- .default_attrs = vmbus_chan_attrs,
};
/*
@@ -1561,6 +1647,7 @@ static struct kobj_type vmbus_chan_ktype = {
*/
int vmbus_add_channel_kobj(struct hv_device *dev, struct vmbus_channel *channel)
{
+ const struct device *device = &dev->device;
struct kobject *kobj = &channel->kobj;
u32 relid = channel->offermsg.child_relid;
int ret;
@@ -1571,11 +1658,30 @@ int vmbus_add_channel_kobj(struct hv_device *dev, struct vmbus_channel *channel)
if (ret)
return ret;
+ ret = sysfs_create_group(kobj, &vmbus_chan_group);
+
+ if (ret) {
+ /*
+ * The calling functions' error handling paths will cleanup the
+ * empty channel directory.
+ */
+ dev_err(device, "Unable to set up channel sysfs files\n");
+ return ret;
+ }
+
kobject_uevent(kobj, KOBJ_ADD);
return 0;
}
+/*
+ * vmbus_remove_channel_attr_group - remove the channel's attribute group
+ */
+void vmbus_remove_channel_attr_group(struct vmbus_channel *channel)
+{
+ sysfs_remove_group(&channel->kobj, &vmbus_chan_group);
+}
+
/*
* vmbus_device_create - Creates and registers a new child device
* on the vmbus.
diff --git a/drivers/hwtracing/intel_th/pci.c b/drivers/hwtracing/intel_th/pci.c
index 1cf6290d643555d1cd9edfd114f2756b66d1b4bb..70f2cb90adc5eb2e15441dcc7f189f9e5495f5aa 100644
--- a/drivers/hwtracing/intel_th/pci.c
+++ b/drivers/hwtracing/intel_th/pci.c
@@ -165,6 +165,11 @@ static const struct pci_device_id intel_th_pci_id_table[] = {
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x34a6),
.driver_data = (kernel_ulong_t)&intel_th_2x,
},
+ {
+ /* Comet Lake */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x02a6),
+ .driver_data = (kernel_ulong_t)&intel_th_2x,
+ },
{ 0 },
};
diff --git a/drivers/hwtracing/stm/core.c b/drivers/hwtracing/stm/core.c
index c7ba8acfd4d52215d1fb7f00562da29c84b89bd2..e55b902560dee28f854718b72f40ca48803de249 100644
--- a/drivers/hwtracing/stm/core.c
+++ b/drivers/hwtracing/stm/core.c
@@ -166,11 +166,10 @@ stm_master(struct stm_device *stm, unsigned int idx)
static int stp_master_alloc(struct stm_device *stm, unsigned int idx)
{
struct stp_master *master;
- size_t size;
- size = ALIGN(stm->data->sw_nchannels, 8) / 8;
- size += sizeof(struct stp_master);
- master = kzalloc(size, GFP_ATOMIC);
+ master = kzalloc(struct_size(master, chan_map,
+ BITS_TO_LONGS(stm->data->sw_nchannels)),
+ GFP_ATOMIC);
if (!master)
return -ENOMEM;
@@ -218,8 +217,8 @@ stm_output_disclaim(struct stm_device *stm, struct stm_output *output)
bitmap_release_region(&master->chan_map[0], output->channel,
ilog2(output->nr_chans));
- output->nr_chans = 0;
master->nr_free += output->nr_chans;
+ output->nr_chans = 0;
}
/*
diff --git a/drivers/misc/cardreader/rts5260.c b/drivers/misc/cardreader/rts5260.c
index da22bcb62b0482751c2208268328e6cdda4f7d02..52c95add56f0161bebf8230912764c38ca5a53ca 100644
--- a/drivers/misc/cardreader/rts5260.c
+++ b/drivers/misc/cardreader/rts5260.c
@@ -451,6 +451,7 @@ static void rts5260_pwr_saving_setting(struct rtsx_pcr *pcr)
lss_l1_2 = rtsx_check_dev_flag(pcr, ASPM_L1_2_EN)
| rtsx_check_dev_flag(pcr, PM_L1_2_EN);
+ rtsx_pci_write_register(pcr, ASPM_FORCE_CTL, 0xFF, 0);
if (lss_l1_2) {
pcr_dbg(pcr, "Set parameters for L1.2.");
rtsx_pci_write_register(pcr, PWR_GLOBAL_CTRL,
@@ -573,10 +574,10 @@ static int rts5260_extra_init_hw(struct rtsx_pcr *pcr)
* to drive low, and we forcibly request clock.
*/
if (option->force_clkreq_0)
- rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PETXCFG,
+ rtsx_pci_write_register(pcr, PETXCFG,
FORCE_CLKREQ_DELINK_MASK, FORCE_CLKREQ_LOW);
else
- rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PETXCFG,
+ rtsx_pci_write_register(pcr, PETXCFG,
FORCE_CLKREQ_DELINK_MASK, FORCE_CLKREQ_HIGH);
return 0;
@@ -704,7 +705,7 @@ void rts5260_init_params(struct rtsx_pcr *pcr)
option->ocp_en = 1;
if (option->ocp_en)
hw_param->interrupt_en |= SD_OC_INT_EN;
- hw_param->ocp_glitch = SDVIO_OCP_GLITCH_800U | SDVIO_OCP_GLITCH_800U;
+ hw_param->ocp_glitch = SD_OCP_GLITCH_100U | SDVIO_OCP_GLITCH_800U;
option->sd_400mA_ocp_thd = RTS5260_DVCC_OCP_THD_550;
option->sd_800mA_ocp_thd = RTS5260_DVCC_OCP_THD_970;
}
diff --git a/drivers/phy/allwinner/Kconfig b/drivers/phy/allwinner/Kconfig
index fb1204bcc4548a23d2864b011cf8eefb9eb84e5f..53772d35b36eb80caff55adb8bd7429f093b22a1 100644
--- a/drivers/phy/allwinner/Kconfig
+++ b/drivers/phy/allwinner/Kconfig
@@ -3,7 +3,8 @@
#
config PHY_SUN4I_USB
tristate "Allwinner sunxi SoC USB PHY driver"
- depends on ARCH_SUNXI && HAS_IOMEM && OF
+ depends on ARCH_SUNXI || COMPILE_TEST
+ depends on HAS_IOMEM
depends on RESET_CONTROLLER
depends on EXTCON
depends on POWER_SUPPLY
@@ -19,7 +20,8 @@ config PHY_SUN4I_USB
config PHY_SUN6I_MIPI_DPHY
tristate "Allwinner A31 MIPI D-PHY Support"
- depends on ARCH_SUNXI && HAS_IOMEM && OF
+ depends on ARCH_SUNXI || COMPILE_TEST
+ depends on HAS_IOMEM
depends on RESET_CONTROLLER
select GENERIC_PHY
select GENERIC_PHY_MIPI_DPHY
@@ -31,7 +33,8 @@ config PHY_SUN6I_MIPI_DPHY
config PHY_SUN9I_USB
tristate "Allwinner sun9i SoC USB PHY driver"
- depends on ARCH_SUNXI && HAS_IOMEM && OF
+ depends on ARCH_SUNXI || COMPILE_TEST
+ depends on HAS_IOMEM
depends on RESET_CONTROLLER
depends on USB_SUPPORT
select USB_COMMON
diff --git a/drivers/phy/allwinner/phy-sun4i-usb.c b/drivers/phy/allwinner/phy-sun4i-usb.c
index 4bbd9ede38c8355a9bf226e80eaabc19bc9eda6e..cc5af961778d661c0fb829a8b391eb3874e89e7b 100644
--- a/drivers/phy/allwinner/phy-sun4i-usb.c
+++ b/drivers/phy/allwinner/phy-sun4i-usb.c
@@ -554,6 +554,7 @@ static void sun4i_usb_phy0_id_vbus_det_scan(struct work_struct *work)
struct sun4i_usb_phy_data *data =
container_of(work, struct sun4i_usb_phy_data, detect.work);
struct phy *phy0 = data->phys[0].phy;
+ struct sun4i_usb_phy *phy = phy_get_drvdata(phy0);
bool force_session_end, id_notify = false, vbus_notify = false;
int id_det, vbus_det;
@@ -610,6 +611,9 @@ static void sun4i_usb_phy0_id_vbus_det_scan(struct work_struct *work)
mutex_unlock(&phy0->mutex);
}
+ /* Enable PHY0 passby for host mode only. */
+ sun4i_usb_phy_passby(phy, !id_det);
+
/* Re-route PHY0 if necessary */
if (data->cfg->phy0_dual_route)
sun4i_usb_phy0_reroute(data, id_det);
diff --git a/drivers/phy/marvell/phy-mvebu-a3700-utmi.c b/drivers/phy/marvell/phy-mvebu-a3700-utmi.c
index 94a29dea57af37f9d9d873bb796d62e5fda699e2..ded900b06f5aa01b2e1e545828406267ba3af237 100644
--- a/drivers/phy/marvell/phy-mvebu-a3700-utmi.c
+++ b/drivers/phy/marvell/phy-mvebu-a3700-utmi.c
@@ -266,7 +266,6 @@ static struct platform_driver mvebu_a3700_utmi_driver = {
.probe = mvebu_a3700_utmi_phy_probe,
.driver = {
.name = "mvebu-a3700-utmi-phy",
- .owner = THIS_MODULE,
.of_match_table = mvebu_a3700_utmi_of_match,
},
};
diff --git a/drivers/phy/motorola/Kconfig b/drivers/phy/motorola/Kconfig
index 82651524ffb9ce33424dd5a3eb9851cc14eef11f..718f8729701df1d7c0c2763965e611346d5194fe 100644
--- a/drivers/phy/motorola/Kconfig
+++ b/drivers/phy/motorola/Kconfig
@@ -13,7 +13,7 @@ config PHY_CPCAP_USB
config PHY_MAPPHONE_MDM6600
tristate "Motorola Mapphone MDM6600 modem USB PHY driver"
- depends on OF && USB_SUPPORT
+ depends on OF && USB_SUPPORT && GPIOLIB
select GENERIC_PHY
help
Enable this for MDM6600 USB modem to work on Motorola phones
diff --git a/drivers/phy/qualcomm/phy-qcom-ufs.c b/drivers/phy/qualcomm/phy-qcom-ufs.c
index f2979ccad00a3ce26d2d92121c11828630a9b897..78c339b2fc8bdf1a45890013922320848a88f62a 100644
--- a/drivers/phy/qualcomm/phy-qcom-ufs.c
+++ b/drivers/phy/qualcomm/phy-qcom-ufs.c
@@ -459,7 +459,7 @@ static int ufs_qcom_phy_enable_iface_clk(struct ufs_qcom_phy *phy)
}
/* Turn OFF M-PHY RMMI interface clocks */
-void ufs_qcom_phy_disable_iface_clk(struct ufs_qcom_phy *phy)
+static void ufs_qcom_phy_disable_iface_clk(struct ufs_qcom_phy *phy)
{
if (phy->is_iface_clk_enabled) {
clk_disable_unprepare(phy->tx_iface_clk);
diff --git a/drivers/phy/rockchip/phy-rockchip-typec.c b/drivers/phy/rockchip/phy-rockchip-typec.c
index e32edeebcd63fa7a9336abf22fd1541eb66aaefc..8ad366ee6adae4dc1580b9850cd8b173728da4b7 100644
--- a/drivers/phy/rockchip/phy-rockchip-typec.c
+++ b/drivers/phy/rockchip/phy-rockchip-typec.c
@@ -400,7 +400,7 @@ struct phy_reg {
u32 addr;
};
-struct phy_reg usb3_pll_cfg[] = {
+static struct phy_reg usb3_pll_cfg[] = {
{ 0xf0, CMN_PLL0_VCOCAL_INIT },
{ 0x18, CMN_PLL0_VCOCAL_ITER },
{ 0xd0, CMN_PLL0_INTDIV },
@@ -417,7 +417,7 @@ struct phy_reg usb3_pll_cfg[] = {
{ 0x8, CMN_DIAG_PLL0_LF_PROG },
};
-struct phy_reg dp_pll_cfg[] = {
+static struct phy_reg dp_pll_cfg[] = {
{ 0xf0, CMN_PLL1_VCOCAL_INIT },
{ 0x18, CMN_PLL1_VCOCAL_ITER },
{ 0x30b9, CMN_PLL1_VCOCAL_START },
diff --git a/drivers/phy/ti/Kconfig b/drivers/phy/ti/Kconfig
index 103efc456a12eb7cd48742ff3f0fe12e147fe48b..022ac16f626cff716e24a3edf40f3f87d5fd07bc 100644
--- a/drivers/phy/ti/Kconfig
+++ b/drivers/phy/ti/Kconfig
@@ -37,7 +37,7 @@ config OMAP_USB2
depends on USB_SUPPORT
select GENERIC_PHY
select USB_PHY
- select OMAP_CONTROL_PHY if ARCH_OMAP2PLUS
+ select OMAP_CONTROL_PHY if ARCH_OMAP2PLUS || COMPILE_TEST
help
Enable this to support the transceiver that is part of SOC. This
driver takes care of all the PHY functionality apart from comparator.
diff --git a/drivers/phy/ti/phy-twl4030-usb.c b/drivers/phy/ti/phy-twl4030-usb.c
index c267afb68f077cd5817059c9a5125cc61996d1d4..176e16a365534344cf7999c10ba2142328fef6ea 100644
--- a/drivers/phy/ti/phy-twl4030-usb.c
+++ b/drivers/phy/ti/phy-twl4030-usb.c
@@ -172,6 +172,7 @@ struct twl4030_usb {
int irq;
enum musb_vbus_id_status linkstat;
+ atomic_t connected;
bool vbus_supplied;
bool musb_mailbox_pending;
@@ -575,39 +576,29 @@ static irqreturn_t twl4030_usb_irq(int irq, void *_twl)
{
struct twl4030_usb *twl = _twl;
enum musb_vbus_id_status status;
- bool status_changed = false;
int err;
status = twl4030_usb_linkstat(twl);
mutex_lock(&twl->lock);
- if (status >= 0 && status != twl->linkstat) {
- status_changed =
- cable_present(twl->linkstat) !=
- cable_present(status);
- twl->linkstat = status;
- }
+ twl->linkstat = status;
mutex_unlock(&twl->lock);
- if (status_changed) {
- /* FIXME add a set_power() method so that B-devices can
- * configure the charger appropriately. It's not always
- * correct to consume VBUS power, and how much current to
- * consume is a function of the USB configuration chosen
- * by the host.
- *
- * REVISIT usb_gadget_vbus_connect(...) as needed, ditto
- * its disconnect() sibling, when changing to/from the
- * USB_LINK_VBUS state. musb_hdrc won't care until it
- * starts to handle softconnect right.
- */
- if (cable_present(status)) {
+ if (cable_present(status)) {
+ if (atomic_add_unless(&twl->connected, 1, 1)) {
+ dev_dbg(twl->dev, "%s: cable connected %i\n",
+ __func__, status);
pm_runtime_get_sync(twl->dev);
- } else {
+ twl->musb_mailbox_pending = true;
+ }
+ } else {
+ if (atomic_add_unless(&twl->connected, -1, 0)) {
+ dev_dbg(twl->dev, "%s: cable disconnected %i\n",
+ __func__, status);
pm_runtime_mark_last_busy(twl->dev);
pm_runtime_put_autosuspend(twl->dev);
+ twl->musb_mailbox_pending = true;
}
- twl->musb_mailbox_pending = true;
}
if (twl->musb_mailbox_pending) {
err = musb_mailbox(status);
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 64698ec8f2accd3d3e939f61a9f860623cd6d3ca..8b9a93c99c9b40acf87c286147aa30a379fe5970 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -141,6 +141,11 @@ struct hv_ring_buffer_info {
u32 ring_datasize; /* < ring_size */
u32 priv_read_index;
+ /*
+ * The ring buffer mutex lock. This lock prevents the ring buffer from
+ * being freed while the ring buffer is being accessed.
+ */
+ struct mutex ring_buffer_mutex;
};
@@ -1206,7 +1211,7 @@ struct hv_ring_buffer_debug_info {
};
-int hv_ringbuffer_get_debuginfo(const struct hv_ring_buffer_info *ring_info,
+int hv_ringbuffer_get_debuginfo(struct hv_ring_buffer_info *ring_info,
struct hv_ring_buffer_debug_info *debug_info);
/* Vmbus interface */