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2 Commits

Author SHA1 Message Date
dongqing.li 26df3302ed ramdump: ker5.15 flush cache all when kernel panic. [1/1] 
PD#SWPL-137107

Problem:
The data in the ramdump crash file is abnormal
because the cache data has not been flushed back.

Solution:
1. Use ipi_stop hook to flush online cpu cache.
2. Use panic_notifier to flush panic cpu cache.

Verify:
sc2_ah212

Change-Id: Ifad5bd4203fdde327b8c2b19357aa2d92586063f
Signed-off-by: dongqing.li <dongqing.li@amlogic.com>
 2023-08-30 06:18:47 -07:00
dongqing.li 5c78a922a7 mm: kernel 5.15 add ramdump driver. [1/1] 
PD#SWPL-108700

Problem:
kernel 5.15 cannot support ramdump.

Solution:
support it.

Verify:
sc2_ah212

Change-Id: I9eb56b006ac68ba1350a3183a9617f01e6749e62
Signed-off-by: dongqing.li <dongqing.li@amlogic.com>
 2023-02-11 01:27:38 -08:00