Commit 02290948 authored by Denis Kirjanov's avatar Denis Kirjanov Committed by David S. Miller

ppc: bpf: Add SKF_AD_CPU for ppc32

Signed-off-by: default avatarDenis Kirjanov <kda@linux-powerpc.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 2ddadeab
...@@ -154,6 +154,23 @@ DECLARE_LOAD_FUNC(sk_load_byte_msh); ...@@ -154,6 +154,23 @@ DECLARE_LOAD_FUNC(sk_load_byte_msh);
#define PPC_LL_OFFS(r, base, i) do { PPC_LWZ_OFFS(r, base, i); } while(0) #define PPC_LL_OFFS(r, base, i) do { PPC_LWZ_OFFS(r, base, i); } while(0)
#endif #endif
#ifdef CONFIG_SMP
#ifdef CONFIG_PPC64
#define PPC_BPF_LOAD_CPU(r) \
do { BUILD_BUG_ON(FIELD_SIZEOF(struct paca_struct, paca_index) != 2); \
PPC_LHZ_OFFS(r, 13, offsetof(struct paca_struct, paca_index)); \
} while (0)
#else
#define PPC_BPF_LOAD_CPU(r) \
do { BUILD_BUG_ON(FIELD_SIZEOF(struct thread_info, cpu) != 4); \
PPC_LHZ_OFFS(r, (1 & ~(THREAD_SIZE - 1)), \
offsetof(struct thread_info, cpu)); \
} while(0)
#endif
#else
#define PPC_BPF_LOAD_CPU(r) do { PPC_LI(r, 0); } while(0)
#endif
#define PPC_CMPWI(a, i) EMIT(PPC_INST_CMPWI | ___PPC_RA(a) | IMM_L(i)) #define PPC_CMPWI(a, i) EMIT(PPC_INST_CMPWI | ___PPC_RA(a) | IMM_L(i))
#define PPC_CMPDI(a, i) EMIT(PPC_INST_CMPDI | ___PPC_RA(a) | IMM_L(i)) #define PPC_CMPDI(a, i) EMIT(PPC_INST_CMPDI | ___PPC_RA(a) | IMM_L(i))
#define PPC_CMPLWI(a, i) EMIT(PPC_INST_CMPLWI | ___PPC_RA(a) | IMM_L(i)) #define PPC_CMPLWI(a, i) EMIT(PPC_INST_CMPLWI | ___PPC_RA(a) | IMM_L(i))
......
...@@ -411,20 +411,8 @@ static int bpf_jit_build_body(struct bpf_prog *fp, u32 *image, ...@@ -411,20 +411,8 @@ static int bpf_jit_build_body(struct bpf_prog *fp, u32 *image,
PPC_SRWI(r_A, r_A, 5); PPC_SRWI(r_A, r_A, 5);
break; break;
case BPF_ANC | SKF_AD_CPU: case BPF_ANC | SKF_AD_CPU:
#ifdef CONFIG_SMP PPC_BPF_LOAD_CPU(r_A);
/*
* PACA ptr is r13:
* raw_smp_processor_id() = local_paca->paca_index
*/
BUILD_BUG_ON(FIELD_SIZEOF(struct paca_struct,
paca_index) != 2);
PPC_LHZ_OFFS(r_A, 13,
offsetof(struct paca_struct, paca_index));
#else
PPC_LI(r_A, 0);
#endif
break; break;
/*** Absolute loads from packet header/data ***/ /*** Absolute loads from packet header/data ***/
case BPF_LD | BPF_W | BPF_ABS: case BPF_LD | BPF_W | BPF_ABS:
func = CHOOSE_LOAD_FUNC(K, sk_load_word); func = CHOOSE_LOAD_FUNC(K, sk_load_word);
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment