hi all: if we run cortex-a53 in aarch32 mode, shall we enable "CONFIG_CPU_ARM_CORTEX_A15" this compile option when generating kernel image? >From below gcc path https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=gcc/config/arm/cortex-a15.md;h=ccab7cbe90621459ad7356074d1543be59d5d929;hb=gcc-4_7-branch , the "CONFIG_CPU_ARM_CORTEX_A15" seems used to optimize cotex a15 code flow based on its pipeline architecture. if pipeline architecture is the only consideration for enable "CONFIG_CPU_ARM_CORTEX_A15" and if cortex a53 in aarch32 mode has the same pipeline architecture as cortex a15, does that mean we could enable "CONFIG_CPU_ARM_CORTEX_A15" ? Meanwhile, how about other armv8-a processor, such as cortex a57, a72, etc.? shall we enable "CONFIG_CPU_ARM_CORTEX_A15" for them when running kernel in aarch32 mode? appreciate your kind help in advance,