Merge tag 'topic/drm-fixes-2015-07-16' of git://anongit.freedesktop.org/drm-intel...

[firefly-linux-kernel-4.4.55.git] / drivers / hv / hyperv_vmbus.h

diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
index 44b1c94247129b8e1d17467b4871c919b5a2b40f..cddc0c9f6bf9965a8e59bde34011896a762e07ba 100644 (file)
--- a/drivers/hv/hyperv_vmbus.h
+++ b/drivers/hv/hyperv_vmbus.h
@@ -49,6 +49,17 @@ enum hv_cpuid_function {
        HVCPUID_IMPLEMENTATION_LIMITS           = 0x40000005,
 };
 
+#define  HV_FEATURE_GUEST_CRASH_MSR_AVAILABLE   0x400
+
+#define HV_X64_MSR_CRASH_P0   0x40000100
+#define HV_X64_MSR_CRASH_P1   0x40000101
+#define HV_X64_MSR_CRASH_P2   0x40000102
+#define HV_X64_MSR_CRASH_P3   0x40000103
+#define HV_X64_MSR_CRASH_P4   0x40000104
+#define HV_X64_MSR_CRASH_CTL  0x40000105
+
+#define HV_CRASH_CTL_CRASH_NOTIFY (1ULL << 63)
+
 /* Define version of the synthetic interrupt controller. */
 #define HV_SYNIC_VERSION               (1)
 
@@ -572,6 +583,8 @@ extern void hv_synic_init(void *irqarg);
 
 extern void hv_synic_cleanup(void *arg);
 
+extern void hv_synic_clockevents_cleanup(void);
+
 /*
  * Host version information.
  */
@@ -634,6 +647,7 @@ struct vmbus_connection {
 
        atomic_t next_gpadl_handle;
 
+       struct completion  unload_event;
        /*
         * Represents channel interrupts. Each bit position represents a
         * channel.  When a channel sends an interrupt via VMBUS, it finds its
@@ -672,6 +686,23 @@ struct vmbus_msginfo {
 
 extern struct vmbus_connection vmbus_connection;
 
+enum vmbus_message_handler_type {
+       /* The related handler can sleep. */
+       VMHT_BLOCKING = 0,
+
+       /* The related handler must NOT sleep. */
+       VMHT_NON_BLOCKING = 1,
+};
+
+struct vmbus_channel_message_table_entry {
+       enum vmbus_channel_message_type message_type;
+       enum vmbus_message_handler_type handler_type;
+       void (*message_handler)(struct vmbus_channel_message_header *msg);
+};
+
+extern struct vmbus_channel_message_table_entry
+       channel_message_table[CHANNELMSG_COUNT];
+
 /* General vmbus interface */
 
 struct hv_device *vmbus_device_create(const uuid_le *type,
@@ -692,6 +723,7 @@ void vmbus_free_channels(void);
 /* Connection interface */
 
 int vmbus_connect(void);
+void vmbus_disconnect(void);
 
 int vmbus_post_msg(void *buffer, size_t buflen);
 
@@ -699,9 +731,39 @@ int vmbus_set_event(struct vmbus_channel *channel);
 
 void vmbus_on_event(unsigned long data);
 
+int hv_kvp_init(struct hv_util_service *);
+void hv_kvp_deinit(void);
+void hv_kvp_onchannelcallback(void *);
+
+int hv_vss_init(struct hv_util_service *);
+void hv_vss_deinit(void);
+void hv_vss_onchannelcallback(void *);
+
 int hv_fcopy_init(struct hv_util_service *);
 void hv_fcopy_deinit(void);
 void hv_fcopy_onchannelcallback(void *);
+void vmbus_initiate_unload(void);
 
+static inline void hv_poll_channel(struct vmbus_channel *channel,
+                                  void (*cb)(void *))
+{
+       if (!channel)
+               return;
+
+       if (channel->target_cpu != smp_processor_id())
+               smp_call_function_single(channel->target_cpu,
+                                        cb, channel, true);
+       else
+               cb(channel);
+}
+
+enum hvutil_device_state {
+       HVUTIL_DEVICE_INIT = 0,  /* driver is loaded, waiting for userspace */
+       HVUTIL_READY,            /* userspace is registered */
+       HVUTIL_HOSTMSG_RECEIVED, /* message from the host was received */
+       HVUTIL_USERSPACE_REQ,    /* request to userspace was sent */
+       HVUTIL_USERSPACE_RECV,   /* reply from userspace was received */
+       HVUTIL_DEVICE_DYING,     /* driver unload is in progress */
+};
 
 #endif /* _HYPERV_VMBUS_H */