iommu/rockchip: Reconstruct to support multi slaves

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There are some IPs, such as video encoder/decoder, contains 2 slave iommus,
one for reading and the other for writing. They share the same irq and
clock with master.

This patch reconstructs to support this case by making them share the same
Page Directory, Page Tables and even the register operations.
That means every instruction to the reading MMU registers would be
duplicated to the writing MMU and vice versa.

Signed-off-by: ZhengShunQian <zhengsq@rock-chips.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

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ZhengShunQian 2016-01-19 15:03:00 +08:00 • committed by Joerg Roedel

parent 92e963f50f

commit cd6438c5f8

1 changed files with 135 additions and 79 deletions

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drivers/iommu/rockchip-iommu.c

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