diff options
Diffstat (limited to 'arch/powerpc/net/bpf_jit.h')
| -rw-r--r-- | arch/powerpc/net/bpf_jit.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/powerpc/net/bpf_jit.h b/arch/powerpc/net/bpf_jit.h index cdea5dccaefe..6beacaec63d3 100644 --- a/arch/powerpc/net/bpf_jit.h +++ b/arch/powerpc/net/bpf_jit.h @@ -12,6 +12,7 @@ #include <asm/types.h> #include <asm/ppc-opcode.h> +#include <linux/build_bug.h> #ifdef CONFIG_PPC64_ELF_ABI_V1 #define FUNCTION_DESCR_SIZE 24 @@ -21,6 +22,9 @@ #define CTX_NIA(ctx) ((unsigned long)ctx->idx * 4) +#define SZL sizeof(unsigned long) +#define BPF_INSN_SAFETY 64 + #define PLANT_INSTR(d, idx, instr) \ do { if (d) { (d)[idx] = instr; } idx++; } while (0) #define EMIT(instr) PLANT_INSTR(image, ctx->idx, instr) @@ -81,6 +85,18 @@ EMIT(PPC_RAW_ORI(d, d, (uintptr_t)(i) & \ 0xffff)); \ } } while (0) +#define PPC_LI_ADDR PPC_LI64 + +#ifndef CONFIG_PPC_KERNEL_PCREL +#define PPC64_LOAD_PACA() \ + EMIT(PPC_RAW_LD(_R2, _R13, offsetof(struct paca_struct, kernel_toc))) +#else +#define PPC64_LOAD_PACA() do {} while (0) +#endif +#else +#define PPC_LI64(d, i) BUILD_BUG() +#define PPC_LI_ADDR PPC_LI32 +#define PPC64_LOAD_PACA() BUILD_BUG() #endif /* @@ -165,6 +181,7 @@ int bpf_jit_build_body(struct bpf_prog *fp, u32 *image, u32 *fimage, struct code u32 *addrs, int pass, bool extra_pass); void bpf_jit_build_prologue(u32 *image, struct codegen_context *ctx); void bpf_jit_build_epilogue(u32 *image, struct codegen_context *ctx); +void bpf_jit_build_fentry_stubs(u32 *image, struct codegen_context *ctx); void bpf_jit_realloc_regs(struct codegen_context *ctx); int bpf_jit_emit_exit_insn(u32 *image, struct codegen_context *ctx, int tmp_reg, long exit_addr); |