On 09/02/2023 14:22, Bryan O'Donoghue wrote:
On 09/02/2023 12:11, Bryan O'Donoghue wrote:
If the bootloader splash is enabled then this memory is used until the
DPU driver instructs MDP5 pipes to suck data from a newly assigned
address,
so there's a short window where it is.
It seems a shame to reserve 30 something megabytes of memory for
continuous splash unless we are actually using it is my point.
If I'm running headless its just wasted memory.
Couldn't we
1. Find reserved continuous splash memory
2. Fee it in the MDP when we make the transition
Qualcomm has investigated freeing the MDP/DPU cont_splash memory, but I
fear that the end result was that it is not _that_ easy to free it. It
is marked as reserved/no-map, so the kernel doesn't think about it as a
memory region. Adding it back required hacking around that.
--
With best wishes
Dmitry
