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samsung: tizen_rpi: add swiotlb value to 8192 on 32bit 01/251201/2 accepted/tizen/unified/20210112.123501 submit/tizen/20210112.000219
authorJaehoon Chung <jh80.chung@samsung.com>
Mon, 11 Jan 2021 07:36:57 +0000 (16:36 +0900)
committerJaehoon Chung <jh80.chung@samsung.com>
Mon, 11 Jan 2021 08:08:57 +0000 (17:08 +0900)
commite645e94303e5e28684a5ee555d912063bc605c09
treef82ecefb085bcac4494837e4e91bb9323ab34365tree | snapshot
parent956306bb751b597e6ea87637f67208f81adffb55commit | diff
samsung: tizen_rpi: add swiotlb value to 8192 on 32bit

When 32bit kernel is booting, kernel is reserving memory for SWIOTLB about
64MB. It seems that doesn't need to use full size.
After set 'swiotlb=8192', SWIOTLB is reserved to 16MB.
Then it can save 48MB memory to use ZONE_DMA.

Change-Id: I1a1659cbff2120da755b14f1b373715bc10027c4
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
include/samsung/tizen_rpi.h diff | blob | history
Domain: System / Kernel;