rusticl/kernel: explicitly set rounding modes
rusticl/kernel: explicitly set rounding modes
Since dbbf5665 ("aco,ac/llvm,radeonsi: lower f2f16 to f2f16_rtz in nir") radeonsi behavior changed and some of the core fp16 ops broke as a result.
We should explicitly specify the rounding mode until we add an gallium API for drivers to advertize what they prefer.
Cc: mesa-stable