irq_chip_compose_msi_msg(9) Componse msi message for a irq chip

SYNOPSIS

int irq_chip_compose_msi_msg(struct irq_data * data, struct msi_msg * msg);

ARGUMENTS

data

Pointer to interrupt specific data

msg

Pointer to the MSI message

DESCRIPTION

For hierarchical domains we find the first chip in the hierarchy which implements the irq_compose_msi_msg callback. For non hierarchical we use the top level chip.

AUTHORS

Thomas Gleixner <[email protected]>

Author.

Ingo Molnar <[email protected]>

Author.

COPYRIGHT