Internal flash disk (eMMC)

Given:

root@turris:/# df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/mmcblk0p1         7633920   2346100   5332880  31% /
tmpfs                   515480     12364    503116   2% /tmp
tmpfs                      512         0       512   0% /dev
/dev/md0             1953383360 654072600 1298189768  34% /mnt/raid

Is tmpsfs or /dev/mmcblk0p1 my “internal flash disk (eMMC)”?

tmpfs is in RAM (linux-wide). /dev/mmcblk0p1 is the flash.