| entry.S (87a0b2fafc09766d8c55461a18345a1cfb10a7fe) | entry.S (22e2100b1b07d6f5acc71cc1acb53f680c677d77) |
|---|---|
| 1/* SPDX-License-Identifier: GPL-2.0-only */ 2/* 3 * Copyright (C) 2012 Regents of the University of California 4 * Copyright (C) 2017 SiFive 5 */ 6 7#include <linux/init.h> 8#include <linux/linkage.h> --- 94 unchanged lines hidden (view full) --- 103 104 /* Load the global pointer */ 105.option push 106.option norelax 107 la gp, __global_pointer$ 108.option pop 109 110#ifdef CONFIG_TRACE_IRQFLAGS | 1/* SPDX-License-Identifier: GPL-2.0-only */ 2/* 3 * Copyright (C) 2012 Regents of the University of California 4 * Copyright (C) 2017 SiFive 5 */ 6 7#include <linux/init.h> 8#include <linux/linkage.h> --- 94 unchanged lines hidden (view full) --- 103 104 /* Load the global pointer */ 105.option push 106.option norelax 107 la gp, __global_pointer$ 108.option pop 109 110#ifdef CONFIG_TRACE_IRQFLAGS |
| 111 call trace_hardirqs_off | 111 call __trace_hardirqs_off |
| 112#endif 113 114#ifdef CONFIG_CONTEXT_TRACKING 115 /* If previous state is in user mode, call context_tracking_user_exit. */ 116 li a0, SR_PP 117 and a0, s1, a0 118 bnez a0, skip_context_tracking 119 call context_tracking_user_exit --- 18 unchanged lines hidden (view full) --- 138 * state of SR_PIE in m/sstatus. 139 */ 140 andi t0, s1, SR_PIE 141 beqz t0, 1f 142 /* kprobes, entered via ebreak, must have interrupts disabled. */ 143 li t0, EXC_BREAKPOINT 144 beq s4, t0, 1f 145#ifdef CONFIG_TRACE_IRQFLAGS | 112#endif 113 114#ifdef CONFIG_CONTEXT_TRACKING 115 /* If previous state is in user mode, call context_tracking_user_exit. */ 116 li a0, SR_PP 117 and a0, s1, a0 118 bnez a0, skip_context_tracking 119 call context_tracking_user_exit --- 18 unchanged lines hidden (view full) --- 138 * state of SR_PIE in m/sstatus. 139 */ 140 andi t0, s1, SR_PIE 141 beqz t0, 1f 142 /* kprobes, entered via ebreak, must have interrupts disabled. */ 143 li t0, EXC_BREAKPOINT 144 beq s4, t0, 1f 145#ifdef CONFIG_TRACE_IRQFLAGS |
| 146 call trace_hardirqs_on | 146 call __trace_hardirqs_on |
| 147#endif 148 csrs CSR_STATUS, SR_IE 149 1501: 151 la ra, ret_from_exception 152 /* Handle syscalls */ 153 li t0, EXC_SYSCALL 154 beq s4, t0, handle_syscall --- 74 unchanged lines hidden (view full) --- 229 REG_L t0, TASK_TI_FLAGS(tp) 230 andi t0, t0, _TIF_SYSCALL_WORK 231 bnez t0, handle_syscall_trace_exit 232 233ret_from_exception: 234 REG_L s0, PT_STATUS(sp) 235 csrc CSR_STATUS, SR_IE 236#ifdef CONFIG_TRACE_IRQFLAGS | 147#endif 148 csrs CSR_STATUS, SR_IE 149 1501: 151 la ra, ret_from_exception 152 /* Handle syscalls */ 153 li t0, EXC_SYSCALL 154 beq s4, t0, handle_syscall --- 74 unchanged lines hidden (view full) --- 229 REG_L t0, TASK_TI_FLAGS(tp) 230 andi t0, t0, _TIF_SYSCALL_WORK 231 bnez t0, handle_syscall_trace_exit 232 233ret_from_exception: 234 REG_L s0, PT_STATUS(sp) 235 csrc CSR_STATUS, SR_IE 236#ifdef CONFIG_TRACE_IRQFLAGS |
| 237 call trace_hardirqs_off | 237 call __trace_hardirqs_off |
| 238#endif 239#ifdef CONFIG_RISCV_M_MODE 240 /* the MPP value is too large to be used as an immediate arg for addi */ 241 li t0, SR_MPP 242 and s0, s0, t0 243#else 244 andi s0, s0, SR_SPP 245#endif --- 19 unchanged lines hidden (view full) --- 265 */ 266 csrw CSR_SCRATCH, tp 267 268restore_all: 269#ifdef CONFIG_TRACE_IRQFLAGS 270 REG_L s1, PT_STATUS(sp) 271 andi t0, s1, SR_PIE 272 beqz t0, 1f | 238#endif 239#ifdef CONFIG_RISCV_M_MODE 240 /* the MPP value is too large to be used as an immediate arg for addi */ 241 li t0, SR_MPP 242 and s0, s0, t0 243#else 244 andi s0, s0, SR_SPP 245#endif --- 19 unchanged lines hidden (view full) --- 265 */ 266 csrw CSR_SCRATCH, tp 267 268restore_all: 269#ifdef CONFIG_TRACE_IRQFLAGS 270 REG_L s1, PT_STATUS(sp) 271 andi t0, s1, SR_PIE 272 beqz t0, 1f |
| 273 call trace_hardirqs_on | 273 call __trace_hardirqs_on |
| 274 j 2f 2751: | 274 j 2f 2751: |
| 276 call trace_hardirqs_off | 276 call __trace_hardirqs_off |
| 2772: 278#endif 279 REG_L a0, PT_STATUS(sp) 280 /* 281 * The current load reservation is effectively part of the processor's 282 * state, in the sense that load reservations cannot be shared between 283 * different hart contexts. We can't actually save and restore a load 284 * reservation, so instead here we clear any existing reservation -- --- 300 unchanged lines hidden --- | 2772: 278#endif 279 REG_L a0, PT_STATUS(sp) 280 /* 281 * The current load reservation is effectively part of the processor's 282 * state, in the sense that load reservations cannot be shared between 283 * different hart contexts. We can't actually save and restore a load 284 * reservation, so instead here we clear any existing reservation -- --- 300 unchanged lines hidden --- |