Hi,
If there is anything wrong, please report it in this thread:
https://marc.info/?t=143332955700003
The meaning of entries in the tables is:
| ok | # feature supported by the architecture
|TODO| # feature not yet supported by the architecture
| .. | # feature cannot be supported by the hardware
#
# Kernel feature support matrix of the 'powerpc' architecture:
#
time/ irq-time-acct : .. | HAVE_IRQ_TIME_ACCOUNTING #
arch supports precise IRQ time accounting
core/ BPF-JIT : ok | HAVE_BPF_JIT #
arch supports BPF JIT optimizations
core/ generic-idle-thread : ok | GENERIC_SMP_IDLE_THREAD #
arch makes use of the generic SMP idle thread facility
core/ jump-labels : ok | HAVE_ARCH_JUMP_LABEL #
arch supports live patched, high efficiency branches
core/ tracehook : ok | HAVE_ARCH_TRACEHOOK #
arch supports tracehook (ptrace) register handling APIs
debug/ gcov-profile-all : ok | ARCH_HAS_GCOV_PROFILE_ALL #
arch supports whole-kernel GCOV code coverage profiling
debug/ kgdb : ok | HAVE_ARCH_KGDB #
arch supports the kGDB kernel debugger
debug/ kprobes : ok | HAVE_KPROBES #
arch supports live patched kernel probe
debug/ kretprobes : ok | HAVE_KRETPROBES #
arch supports kernel function-return probes
debug/ uprobes : ok | ARCH_SUPPORTS_UPROBES #
arch supports live patched user probes
io/ dma-api-debug : ok | HAVE_DMA_API_DEBUG #
arch supports DMA debug facilities
io/ dma_map_attrs : ok | HAVE_DMA_ATTRS #
arch provides dma_*map*_attrs() APIs
io/ sg-chain : ok | ARCH_HAS_SG_CHAIN #
arch supports chained scatter-gather lists
locking/ lockdep : ok | LOCKDEP_SUPPORT #
arch supports the runtime locking correctness debug facility
perf/ kprobes-event : ok | HAVE_REGS_AND_STACK_ACCESS_API #
arch supports kprobes with perf events
sched/ numa-balancing : ok | ARCH_SUPPORTS_NUMA_BALANCING #
arch supports NUMA balancing
time/ arch-tick-broadcast : ok | ARCH_HAS_TICK_BROADCAST #
arch provides tick_broadcast()
time/ clockevents : ok | GENERIC_CLOCKEVENTS #
arch support generic clock events
time/ context-tracking : ok | HAVE_CONTEXT_TRACKING #
arch supports context tracking for NO_HZ_FULL
time/ modern-timekeeping : ok | !ARCH_USES_GETTIMEOFFSET #
arch does not use arch_gettimeoffset() anymore
time/ virt-cpuacct : ok | HAVE_VIRT_CPU_ACCOUNTING #
arch supports precise virtual CPU time accounting
vm/ ELF-ASLR : ok | ARCH_HAS_ELF_RANDOMIZE #
arch randomizes the stack, heap and binary images of ELF binaries
vm/ ioremap_prot : ok | HAVE_IOREMAP_PROT #
arch has ioremap_prot()
vm/ numa-memblock : ok | HAVE_MEMBLOCK_NODE_MAP #
arch supports NUMA aware memblocks
vm/ pmdp_splitting_flush : ok | __HAVE_ARCH_PMDP_SPLITTING_FLUSH #
arch supports the pmdp_splitting_flush() VM API
vm/ pte_special : ok | __HAVE_ARCH_PTE_SPECIAL #
arch supports the pte_special()/pte_mkspecial() VM APIs
vm/ THP : ok | HAVE_ARCH_TRANSPARENT_HUGEPAGE #
arch supports transparent hugepages
debug/ KASAN : TODO | HAVE_ARCH_KASAN #
arch supports the KASAN runtime memory checker
debug/ kprobes-on-ftrace : TODO | HAVE_KPROBES_ON_FTRACE #
arch supports combined kprobes and ftrace live patching
debug/ optprobes : TODO | HAVE_OPTPROBES #
arch supports live patched optprobes
debug/ stackprotector : TODO | HAVE_CC_STACKPROTECTOR #
arch supports compiler driven stack overflow protection
debug/ user-ret-profiler : TODO | HAVE_USER_RETURN_NOTIFIER #
arch supports user-space return from system call profiler
io/ dma-contiguous : TODO | HAVE_DMA_CONTIGUOUS #
arch supports the DMA CMA (continuous memory allocator)
lib/ strncasecmp : TODO | __HAVE_ARCH_STRNCASECMP #
arch provides an optimized strncasecmp() function
locking/ cmpxchg-local : TODO | HAVE_CMPXCHG_LOCAL #
arch supports the this_cpu_cmpxchg() API
locking/ queued-rwlocks : TODO | ARCH_USE_QUEUED_RWLOCKS #
arch supports queued rwlocks
locking/ queued-spinlocks : TODO | ARCH_USE_QUEUED_SPINLOCKS #
arch supports queued spinlocks
locking/ rwsem-optimized : TODO | Optimized asm/rwsem.h #
arch provides optimized rwsem APIs
perf/ perf-regs : TODO | HAVE_PERF_REGS #
arch supports perf events register access
perf/ perf-stackdump : TODO | HAVE_PERF_USER_STACK_DUMP #
arch supports perf events stack dumps
seccomp/ seccomp-filter : TODO | HAVE_ARCH_SECCOMP_FILTER #
arch supports seccomp filters
vm/ huge-vmap : TODO | HAVE_ARCH_HUGE_VMAP #
arch supports the ioremap_pud_enabled() and ioremap_pmd_enabled() VM APIs
vm/ PG_uncached : TODO | ARCH_USES_PG_UNCACHED #
arch supports the PG_uncached page flag
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