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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
ppc: bpf: Add SKF_AD_CPU for ppc32
Signed-off-by: Denis Kirjanov <kda@linux-powerpc.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
authored by
Denis Kirjanov
and committed by
David S. Miller
02290948
2ddadeab
+18
-13
+17
arch/powerpc/net/bpf_jit.h
+17
arch/powerpc/net/bpf_jit.h
···
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#define PPC_LL_OFFS(r, base, i) do { PPC_LWZ_OFFS(r, base, i); } while(0)
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#endif
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#ifdef CONFIG_SMP
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#ifdef CONFIG_PPC64
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#define PPC_BPF_LOAD_CPU(r) \
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do { BUILD_BUG_ON(FIELD_SIZEOF(struct paca_struct, paca_index) != 2); \
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PPC_LHZ_OFFS(r, 13, offsetof(struct paca_struct, paca_index)); \
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} while (0)
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#else
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#define PPC_BPF_LOAD_CPU(r) \
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do { BUILD_BUG_ON(FIELD_SIZEOF(struct thread_info, cpu) != 4); \
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PPC_LHZ_OFFS(r, (1 & ~(THREAD_SIZE - 1)), \
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offsetof(struct thread_info, cpu)); \
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} while(0)
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#endif
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#else
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#define PPC_BPF_LOAD_CPU(r) do { PPC_LI(r, 0); } while(0)
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#endif
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#define PPC_CMPWI(a, i) EMIT(PPC_INST_CMPWI | ___PPC_RA(a) | IMM_L(i))
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#define PPC_CMPDI(a, i) EMIT(PPC_INST_CMPDI | ___PPC_RA(a) | IMM_L(i))
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#define PPC_CMPLWI(a, i) EMIT(PPC_INST_CMPLWI | ___PPC_RA(a) | IMM_L(i))
+1
-13
arch/powerpc/net/bpf_jit_comp.c
+1
-13
arch/powerpc/net/bpf_jit_comp.c
···
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PPC_SRWI(r_A, r_A, 5);
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break;
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case BPF_ANC | SKF_AD_CPU:
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#ifdef CONFIG_SMP
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/*
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* PACA ptr is r13:
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* raw_smp_processor_id() = local_paca->paca_index
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*/
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BUILD_BUG_ON(FIELD_SIZEOF(struct paca_struct,
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paca_index) != 2);
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PPC_LHZ_OFFS(r_A, 13,
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offsetof(struct paca_struct, paca_index));
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#else
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PPC_LI(r_A, 0);
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#endif
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PPC_BPF_LOAD_CPU(r_A);
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break;
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/*** Absolute loads from packet header/data ***/
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case BPF_LD | BPF_W | BPF_ABS:
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func = CHOOSE_LOAD_FUNC(K, sk_load_word);