Memory for kernels and parameters

Hi,

I just want to revisit this old post:
In which memory space do kernel parameters reside? - CUDA / CUDA Programming and Performance - NVIDIA Developer Forums

Is the information still correct and kernel-parameters are stored in shared memory and are limited to 256 bytes per kernel call? How many streams can I execute with different parameters? I think the memory usage will add up?

In context to this I like to know in which memory kernels are executed? Is this within the global memory or does the system have a dedicated program memory for kernels?

Thanks.
Daniel

global function parameters are passed to the device via constant memory and are limited to 4 KB.

For Kepler - Ampere constant memory is an indexed address space in global memory that is accessed via the constant read path vs. the L1 data path.