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    drm/amdkfd: Add the events module · f3a39818
    Andrew Lewycky 提交于
    This patch adds the events module (kfd_events.c) and the interrupt
    handle module for Kaveri (cik_event_interrupt.c).
    
    The patch updates the interrupt_is_wanted(), so that it now calls the
    interrupt isr function specific for the device that received the
    interrupt. That function(implemented in cik_event_interrupt.c)
    returns whether this interrupt is of interest to us or not.
    
    The patch also updates the interrupt_wq(), so that it now calls the
    device's specific wq function, which checks the interrupt source
    and tries to signal relevant events.
    
    v2:
    
    Increase limit of signal events to 4096 per process
    Remove bitfields from struct cik_ih_ring_entry
    Rename radeon_kfd_event_mmap to kfd_event_mmap
    Add debug prints to allocate_free_slot and allocate_signal_page
    Make allocate_event_notification_slot return a correct value
    Add warning prints to create_signal_event
    Remove error print from IOCTL path
    Reformatted debug prints in kfd_event_mmap
    Map correct size (as received from mmap) in kfd_event_mmap
    
    v3:
    
    Reduce limit of signal events back to 256 per process
    Fix allocation of kernel memory for signal events
    Signed-off-by: NAndrew Lewycky <Andrew.Lewycky@amd.com>
    Signed-off-by: NOded Gabbay <oded.gabbay@gmail.com>
    f3a39818
kfd_chardev.c 18.1 KB