diff options
Diffstat (limited to 'arch/mips/net/bpf_jit_comp.h')
| -rw-r--r-- | arch/mips/net/bpf_jit_comp.h | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/arch/mips/net/bpf_jit_comp.h b/arch/mips/net/bpf_jit_comp.h index 44787cf377dd..6f3a7b07294b 100644 --- a/arch/mips/net/bpf_jit_comp.h +++ b/arch/mips/net/bpf_jit_comp.h @@ -87,7 +87,7 @@ struct jit_context { }; /* Emit the instruction if the JIT memory space has been allocated */ -#define emit(ctx, func, ...) \ +#define __emit(ctx, func, ...) \ do { \ if ((ctx)->target != NULL) { \ u32 *p = &(ctx)->target[ctx->jit_index]; \ @@ -95,6 +95,30 @@ do { \ } \ (ctx)->jit_index++; \ } while (0) +#define emit(...) __emit(__VA_ARGS__) + +/* Workaround for R10000 ll/sc errata */ +#ifdef CONFIG_WAR_R10000 +#define LLSC_beqz beqzl +#else +#define LLSC_beqz beqz +#endif + +/* Workaround for Loongson-3 ll/sc errata */ +#ifdef CONFIG_CPU_LOONGSON3_WORKAROUNDS +#define LLSC_sync(ctx) emit(ctx, sync, 0) +#define LLSC_offset 4 +#else +#define LLSC_sync(ctx) +#define LLSC_offset 0 +#endif + +/* Workaround for Loongson-2F jump errata */ +#ifdef CONFIG_CPU_JUMP_WORKAROUNDS +#define JALR_MASK 0xffffffffcfffffffULL +#else +#define JALR_MASK (~0ULL) +#endif /* * Mark a BPF register as accessed, it needs to be |