1 // SPDX-License-Identifier: GPL-2.0-only
3  * Copyright (C) 2011-2012 Synopsys (www.synopsys.com)
6  *  -Adapted (from .26 to .35)
7  *  -original contribution by Tim.yao@amlogic.com
139 	if ((state->aa == 1) || (state->aa == 2)) {  in fixup_load()
140 		set_reg(state->wb_reg, state->src1 + state->src2, regs, cregs);  in fixup_load()
142 		if (state->aa == 2)  in fixup_load()
143 			state->src2 = 0;  in fixup_load()
146 	if (state->zz == 0) {  in fixup_load()
147 		get32_unaligned_check(val, state->src1 + state->src2);  in fixup_load()
149 		get16_unaligned_check(val, state->src1 + state->src2);  in fixup_load()
151 		if (state->x)  in fixup_load()
155 	if (state->pref == 0)  in fixup_load()
156 		set_reg(state->dest, val, regs, cregs);  in fixup_load()
160 fault:	state->fault = 1;  in fixup_load()
167 	if ((state->aa == 1) || (state->aa == 2)) {  in fixup_store()
168 		set_reg(state->wb_reg, state->src2 + state->src3, regs, cregs);  in fixup_store()
170 		if (state->aa == 3)  in fixup_store()
171 			state->src3 = 0;  in fixup_store()
172 	} else if (state->aa == 3) {  in fixup_store()
173 		if (state->zz == 2) {  in fixup_store()
174 			set_reg(state->wb_reg, state->src2 + (state->src3 << 1),  in fixup_store()
176 		} else if (!state->zz) {  in fixup_store()
177 			set_reg(state->wb_reg, state->src2 + (state->src3 << 2),  in fixup_store()
184 	/* write fix-up */  in fixup_store()
185 	if (!state->zz)  in fixup_store()
186 		put32_unaligned_check(state->src1, state->src2 + state->src3);  in fixup_store()
188 		put16_unaligned_check(state->src1, state->src2 + state->src3);  in fixup_store()
192 fault:	state->fault = 1;  in fixup_store()
214 			     " echo 0 > /proc/sys/kernel/ignore-unaligned-usertrap\n",  in misaligned_fixup()
215 			     get_task_comm(buf, current), task_pid_nr(current));  in misaligned_fixup()
217 		/* Add rate limiting if it gets down to it */  in misaligned_fixup()
219 			get_task_comm(buf, current), task_pid_nr(current),  in misaligned_fixup()
220 			address, regs->ret);  in misaligned_fixup()
224 	disasm_instr(regs->ret, &state, 1, regs, cregs);  in misaligned_fixup()
243 		regs->ret = regs->bta & ~1U;  in misaligned_fixup()
244 		regs->status32 &= ~STATUS_DE_MASK;  in misaligned_fixup()
246 		regs->ret += state.instr_len;  in misaligned_fixup()
248 		/* handle zero-overhead-loop */  in misaligned_fixup()
249 		if ((regs->ret == regs->lp_end) && (regs->lp_count)) {  in misaligned_fixup()
250 			regs->ret = regs->lp_start;  in misaligned_fixup()
251 			regs->lp_count--;  in misaligned_fixup()
259 	pr_err("Alignment trap: fault in fix-up %08lx at [<%08lx>]\n",  in misaligned_fixup()