how to add more physical RAM memory section to Blast Kernel in the MDM9200/MDM9600

Blast Kernel has the capability to take more than one contiguous physical RAM space (section) and use it for its own system memory. In order to add more RAM mem section to Blast, the customer need to modify blast_config.c file.

Here is the example of adding 4MB additional RAM mem section.

In blast_config.c,

struct phys_mem_pool_config pool_configs[] __attribute__((weak)) = {
{"DEFAULT_PHYSPOOL", //name
{
{0x00c00000, 0x02f00000}, // 47MB, the first mem section
{0x00700000, 0x00400000} // adding 4MB, QC default value is {0}
}
},


In this example, additional 4MB is added starting from 0x700000 physical address offset.
Please note the start address has to be physical address.
By adding the second mem section, the Blast Kernel can now use 51MB in total, while it used only 47MB before adding the 4MB mem section