Am 21.12.21 um 23:48 schrieb Richard Schleich: > This patch fixes the kernel warning > "cacheinfo: Unable to detect cache hierarchy for CPU 0" > for the bcm2711 on newer kernel versions. > > Signed-off-by: Richard Schleich <rs@xxxxxxxxxxx> Tested-by: Stefan Wahren <stefan.wahren@xxxxxxxx> I tested the patch with a Raspberry Pi 4 (arm64/defconfig) and here are some outputs: /sys/devices/system/cpu/cpu0/cache ./index2/number_of_sets:1024 ./index2/ways_of_associativity:16 ./index2/shared_cpu_list:0-3 ./index2/type:Unified ./index2/size:1024K ./index2/level:2 ./index2/coherency_line_size:64 ./index2/shared_cpu_map:f ./index0/number_of_sets:256 ./index0/ways_of_associativity:2 ./index0/shared_cpu_list:0 ./index0/type:Data ./index0/size:32K ./index0/level:1 ./index0/coherency_line_size:64 ./index0/shared_cpu_map:1 ./index1/number_of_sets:256 ./index1/ways_of_associativity:3 ./index1/shared_cpu_list:0 ./index1/type:Instruction ./index1/size:48K ./index1/level:1 ./index1/coherency_line_size:64 ./index1/shared_cpu_map:1 lscpu Architecture: aarch64 Byte Order: Little Endian CPU(s): 4 On-line CPU(s) list: 0-3 Thread(s) per core: 1 Core(s) per socket: 4 Socket(s): 1 NUMA node(s): 1 Vendor ID: ARM Model: 3 Model name: Cortex-A72 Stepping: r0p3 CPU max MHz: 1500,0000 CPU min MHz: 600,0000 BogoMIPS: 108.00 L1d cache: 32K L1i cache: 48K L2 cache: 1024K NUMA node0 CPU(s): 0-3 Flags: fp asimd evtstrm crc32 cpuid
