0006129: [PCore8MP] Wrong DSP reserved_mem address for boards with less than 2GB dram

ID	Project	Category	View Status	Date Submitted	Last Update

0006129	fsimx_Linux	Kernel	public	2024-02-23 13:52	2024-08-01 12:38

Reporter	gerbach	Assigned To
Priority	normal	Severity	minor	Reproducibility	always
Status	resolved	Resolution	fixed
Product Version	fsimx8mp-Y2021.06
Target Version	fsimx8m-next	Fixed in Version	fsimx8mp-Y2024.07

Summary	0006129: [PCore8MP] Wrong DSP reserved_mem address for boards with less than 2GB dram
Description	The dsp_reserved memory address is hard coded to 0x92400000. This is behind 1GB so for boards with less then 2GB this address is not valid. This leads to unallowed writing of the dsp in the dram memory due to overflow. We noticed this because the initramfs of the selftest was corrupted while booting Linux.

Forum Link

gerbach 2024-02-27 10:00 developer ~0004734	Also we should remove the reserved memory entry if the dsp is not used or else the memory is still split and its hard to get large cmas

gerbach 2024-08-01 12:38 developer ~0004972	Git commit 11935808392c01b84adafa1791ca03080fb1c728