diff options
Diffstat (limited to 'drivers/hv/hyperv_vmbus.h')
| -rw-r--r-- | drivers/hv/hyperv_vmbus.h | 53 |
1 files changed, 31 insertions, 22 deletions
diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h index c375ec89db6f..c8ce9ab2e16a 100644 --- a/drivers/hv/hyperv_vmbus.h +++ b/drivers/hv/hyperv_vmbus.h @@ -29,6 +29,7 @@ #include <asm/sync_bitops.h> #include <linux/atomic.h> #include <linux/hyperv.h> +#include <linux/interrupt.h> /* * Timeout for services such as KVP and fcopy. @@ -189,6 +190,33 @@ enum { VMBUS_MESSAGE_SINT = 2, }; +/* + * Per cpu state for channel handling + */ +struct hv_per_cpu_context { + void *synic_message_page; + void *synic_event_page; + /* + * buffer to post messages to the host. + */ + void *post_msg_page; + + /* + * Starting with win8, we can take channel interrupts on any CPU; + * we will manage the tasklet that handles events messages on a per CPU + * basis. + */ + struct tasklet_struct event_dpc; + struct tasklet_struct msg_dpc; + + /* + * To optimize the mapping of relid to channel, maintain + * per-cpu list of the channels based on their CPU affinity. + */ + struct list_head chan_list; + struct clock_event_device *clk_evt; +}; + struct hv_context { /* We only support running on top of Hyper-V * So at this point this really can only contain the Hyper-V ID @@ -199,8 +227,8 @@ struct hv_context { bool synic_initialized; - void *synic_message_page[NR_CPUS]; - void *synic_event_page[NR_CPUS]; + struct hv_per_cpu_context __percpu *cpu_context; + /* * Hypervisor's notion of virtual processor ID is different from * Linux' notion of CPU ID. This information can only be retrieved @@ -211,26 +239,7 @@ struct hv_context { * Linux cpuid 'a'. */ u32 vp_index[NR_CPUS]; - /* - * Starting with win8, we can take channel interrupts on any CPU; - * we will manage the tasklet that handles events messages on a per CPU - * basis. - */ - struct tasklet_struct *event_dpc[NR_CPUS]; - struct tasklet_struct *msg_dpc[NR_CPUS]; - /* - * To optimize the mapping of relid to channel, maintain - * per-cpu list of the channels based on their CPU affinity. - */ - struct list_head percpu_list[NR_CPUS]; - /* - * 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]; + /* * To manage allocations in a NUMA node. * Array indexed by numa node ID. |