projects / platform / kernel / linux-rpi3.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 0382a87) | patch
bcm2835-sdhost: Allow for sg entries that cross pages
authorPhil Elwell <phil@raspberrypi.org>
Wed, 13 Mar 2019 14:19:11 +0000 (14:19 +0000)
committerpopcornmix <popcornmix@gmail.com>
Mon, 13 May 2019 23:08:23 +0000 (00:08 +0100)
commit3e35b1bac12eea970308788aacf2c4db2e8414ea
treecb6635eec991924b41489166c4b38a37654e6ac2tree | snapshot
parent0382a87f667ccb5f3565bc9b220273f300979f72commit | diff
bcm2835-sdhost: Allow for sg entries that cross pages

The dma_complete handling code calculates a virtual address for a page
then adds an offset, but if the offset is more than a page and HIGHMEM
is in use then the summed address could be in an unmapped (or just
incorrect) page.

The upstream SDHOST driver allows for this possibility - copy the code
that does so.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
drivers/mmc/host/bcm2835-sdhost.c diff | blob | history
Domain: System / Kernel; Licenses: GPL-2.0;