MIPS: Add support for eBPF JIT.
Since the eBPF machine has 64-bit registers, we only support this in 64-bit kernels. As of the writing of this commit log test-bpf is showing: test_bpf: Summary: 316 PASSED, 0 FAILED, [308/308 JIT'ed] All current test cases are successfully compiled. Many examples in samples/bpf are usable, specifically tracex5 which uses tail calls works. Signed-off-by: David Daney <david.daney@cavium.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Markos Chandras <markos.chandras@imgtec.com> Cc: Matt Redfearn <matt.redfearn@imgtec.com> Cc: netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/16369/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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2 changed files with 13 additions and 2 deletions
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@ -33,7 +33,8 @@ config MIPS
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select HAVE_ARCH_SECCOMP_FILTER
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select HAVE_ARCH_SECCOMP_FILTER
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select HAVE_ARCH_TRACEHOOK
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select HAVE_ARCH_TRACEHOOK
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select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
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select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
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select HAVE_CBPF_JIT if !CPU_MICROMIPS
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select HAVE_CBPF_JIT if (!64BIT && !CPU_MICROMIPS)
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select HAVE_EBPF_JIT if (64BIT && !CPU_MICROMIPS)
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select HAVE_CC_STACKPROTECTOR
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select HAVE_CC_STACKPROTECTOR
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select HAVE_CONTEXT_TRACKING
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select HAVE_CONTEXT_TRACKING
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select HAVE_COPY_THREAD_TLS
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select HAVE_COPY_THREAD_TLS
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@ -1178,6 +1179,15 @@ config SYS_SUPPORTS_RELOCATABLE
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The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
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The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
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to allow access to command line and entropy sources.
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to allow access to command line and entropy sources.
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config MIPS_CBPF_JIT
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def_bool y
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depends on BPF_JIT && HAVE_CBPF_JIT
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config MIPS_EBPF_JIT
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def_bool y
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depends on BPF_JIT && HAVE_EBPF_JIT
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#
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#
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# Endianness selection. Sufficiently obscure so many users don't know what to
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# Endianness selection. Sufficiently obscure so many users don't know what to
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# answer,so we try hard to limit the available choices. Also the use of a
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# answer,so we try hard to limit the available choices. Also the use of a
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@ -1,3 +1,4 @@
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# MIPS networking code
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# MIPS networking code
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obj-$(CONFIG_BPF_JIT) += bpf_jit.o bpf_jit_asm.o
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obj-$(CONFIG_MIPS_CBPF_JIT) += bpf_jit.o bpf_jit_asm.o
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obj-$(CONFIG_MIPS_EBPF_JIT) += ebpf_jit.o
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