Thread (24 messages) 24 messages, 2 authors, 2020-08-04

Re: [PATCH v4 2/2] soc: mediatek: add mtk-devapc driver

From: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Date: 2020-08-01 23:51:01
Also in: linux-devicetree, linux-mediatek, lkml

Hi, Neal:

Neal Liu [off-list ref] 於 2020年7月29日 週三 下午4:29寫道:
MediaTek bus fabric provides TrustZone security support and data
protection to prevent slaves from being accessed by unexpected
masters.
The security violation is logged and sent to the processor for
further analysis or countermeasures.

Any occurrence of security violation would raise an interrupt, and
it will be handled by mtk-devapc driver. The violation
information is printed in order to find the murderer.

Signed-off-by: Neal Liu <redacted>
---
[snip]
+
+struct mtk_devapc_context {
+       struct device *dev;
+       u32 vio_idx_num;
+       void __iomem *devapc_pd_base;
This is devapc context, so prefix 'devapc' is redundant.
And, what does 'pd' mean?

Regards,
Chun-Kuang.
+       struct mtk_devapc_vio_info *vio_info;
+       const struct mtk_devapc_pd_offset *offset;
+       const struct mtk_devapc_vio_dbgs *vio_dbgs;
+};
+
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