irqchip/gic-v3-its: Macro-ize its_send_single_command

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Most ITS commands do operate on a collection object, and require
a SYNC command to be performed on that collection in order to
guarantee the execution of the first command.

With GICv4 ITS, another set of commands perform similar operations
on a VPE object, and a VSYNC operations must be executed to guarantee
their execution.

Given the similarities (post a command, perform a synchronization
operation on a sync object), it makes sense to reuse the same
mechanism for both class of commands.

Let's start with turning its_send_single_command into a huge macro
that performs the bulk of the work, and a set of helpers that
make this macro usable for the GICv3 ITS commands.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

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Marc Zyngier 2016-12-19 17:56:32 +00:00

parent 3dfa576bfb

commit e4f9094b54

1 changed files with 47 additions and 37 deletions

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drivers/irqchip/irq-gic-v3-its.c

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