Lines Matching +full:neo +full:- +full:8

1 /* SPDX-License-Identifier: GPL-2.0-only */
3  * Just-In-Time compiler for eBPF bytecode on 32-bit and 64-bit MIPS.
10  * Copyright (c) 2017 Shubham Bansal <illusionist.neo@gmail.com>
26 #define MIPS_R_A4	8   /* Arg (n64)  */
30 #define MIPS_R_T0	8   /* Temp (o32) */
62 #define JIT_MAX_ITERATIONS	8
65  * Jump pseudo-instructions used internally
71 /* Descriptor flag for PC-relative branch conversion */
81 	u32 changes;                  /* Number of PC-relative branch conv   */
85 	u32 saved_size;               /* Size of callee-saved registers      */
92 	if ((ctx)->target != NULL) {				\
93 		u32 *p = &(ctx)->target[ctx->jit_index];	\
96 	(ctx)->jit_index++;					\
107 /* Workaround for Loongson-3 ll/sc errata */
116 /* Workaround for Loongson-2F jump errata */
129 	ctx->accessed |= BIT(reg);  in access_reg()
134  * saved/restored by the program if callee-saved.
138 	ctx->clobbered |= BIT(reg);  in clobber_reg()
153 /* Compute the 28-bit jump target address from a BPF program location */
156 /* Compute the PC-relative offset to relative BPF program offset */
159 /* dst = imm (32-bit) */
162 /* dst = src (32-bit) */
171 /* ALU immediate operation (32-bit) */
174 /* ALU register operation (32-bit) */
177 /* Atomic read-modify-write (32-bit) */
180 /* Atomic compare-and-exchange (32-bit) */
189 /* Prepare a PC-relative jump operation with immediate conditional */
193 /* Prepare a PC-relative jump operation with register conditional */
197 /* Finish a PC-relative jump operation */
214  * This function is implemented separately for 32-bit and 64-bit JITs.
220  * This function is implemented separately for 32-bit and 64-bit JITs.
228  *	0  - Successfully JITed an 8-byte eBPF instruction
229  *	>0 - Successfully JITed a 16-byte eBPF instruction
230  *	<0 - Failed to JIT.
231  * This function is implemented separately for 32-bit and 64-bit JITs.