Merge tag 'powerpc-6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc...

[tomoyo/tomoyo-test1.git] / arch / powerpc / Kconfig

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index e6614d7..acffffb 100644 (file)
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -4,6 +4,17 @@ source "arch/powerpc/platforms/Kconfig.cputype"
 config CC_HAS_ELFV2
        def_bool PPC64 && $(cc-option, -mabi=elfv2)
 
+config CC_HAS_PREFIXED
+       def_bool PPC64 && $(cc-option, -mcpu=power10 -mprefixed)
+
+config CC_HAS_PCREL
+       # Clang has a bug (https://github.com/llvm/llvm-project/issues/62372)
+       # where pcrel code is not generated if -msoft-float, -mno-altivec, or
+       # -mno-vsx options are also given. Without these options, fp/vec
+       # instructions are generated from regular kernel code. So Clang can't
+       # do pcrel yet.
+       def_bool PPC64 && CC_IS_GCC && $(cc-option, -mcpu=power10 -mpcrel)
+
 config 32BIT
        bool
        default y if PPC32
@@ -158,6 +169,7 @@ config PPC
        select ARCH_USE_CMPXCHG_LOCKREF         if PPC64
        select ARCH_USE_MEMTEST
        select ARCH_USE_QUEUED_RWLOCKS          if PPC_QUEUED_SPINLOCKS
+       select ARCH_WANT_DEFAULT_BPF_JIT
        select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT
        select ARCH_WANT_IPC_PARSE_VERSION
        select ARCH_WANT_IRQS_OFF_ACTIVATE_MM
@@ -201,6 +213,7 @@ config PPC
        select HAVE_ARCH_KCSAN                  if PPC_BOOK3S_64
        select HAVE_ARCH_KFENCE                 if ARCH_SUPPORTS_DEBUG_PAGEALLOC
        select HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET
+       select HAVE_ARCH_WITHIN_STACK_FRAMES
        select HAVE_ARCH_KGDB
        select HAVE_ARCH_MMAP_RND_BITS
        select HAVE_ARCH_MMAP_RND_COMPAT_BITS   if COMPAT
@@ -292,10 +305,6 @@ config PPC
        # Please keep this list sorted alphabetically.
        #
 
-config PPC_LONG_DOUBLE_128
-       depends on PPC64 && ALTIVEC
-       def_bool $(success,test "$(shell,echo __LONG_DOUBLE_128__ | $(CC) -E -P -)" = 1)
-
 config PPC_BARRIER_NOSPEC
        bool
        default y
@@ -618,8 +627,7 @@ config PPC64_BIG_ENDIAN_ELF_ABI_V2
        bool "Build big-endian kernel using ELF ABI V2 (EXPERIMENTAL)"
        depends on PPC64 && CPU_BIG_ENDIAN
        depends on CC_HAS_ELFV2
-       depends on LD_IS_BFD && LD_VERSION >= 22400
-       default n
+       depends on LD_VERSION >= 22400 || LLD_VERSION >= 150000
        help
          This builds the kernel image using the "Power Architecture 64-Bit ELF
          V2 ABI Specification", which has a reduced stack overhead and faster