1 ! SPDX-License-Identifier: GPL-2.0 2 ! entry.S macro define 3 4 .macro cli 5 stc sr, r0 6 or #0xf0, r0 7 ldc r0, sr 8 .endm 9 10 .macro sti 11 mov #0xfffffff0, r11 12 extu.b r11, r11 13 not r11, r11 14 stc sr, r10 15 and r11, r10 16 #ifdef CONFIG_CPU_HAS_SR_RB 17 stc k_g_imask, r11 18 or r11, r10 19 #endif 20 ldc r10, sr 21 .endm 22 23 .macro get_current_thread_info, ti, tmp 24 #ifdef CONFIG_CPU_HAS_SR_RB 25 stc r7_bank, \ti 26 #else 27 mov #((THREAD_SIZE - 1) >> 10) ^ 0xff, \tmp 28 shll8 \tmp 29 shll2 \tmp 30 mov r15, \ti 31 and \tmp, \ti 32 #endif 33 .endm 34 35 #ifdef CONFIG_TRACE_IRQFLAGS 36 37 .macro TRACE_IRQS_ON 38 mov.l r0, @-r15 39 mov.l r1, @-r15 40 mov.l r2, @-r15 41 mov.l r3, @-r15 42 mov.l r4, @-r15 43 mov.l r5, @-r15 44 mov.l r6, @-r15 45 mov.l r7, @-r15 46 47 mov.l 7834f, r0 48 jsr @r0 49 nop 50 51 mov.l @r15+, r7 52 mov.l @r15+, r6 53 mov.l @r15+, r5 54 mov.l @r15+, r4 55 mov.l @r15+, r3 56 mov.l @r15+, r2 57 mov.l @r15+, r1 58 mov.l @r15+, r0 59 mov.l 7834f, r0 60 61 bra 7835f 62 nop 63 .balign 4 64 7834: .long trace_hardirqs_on 65 7835: 66 .endm 67 .macro TRACE_IRQS_OFF 68 69 mov.l r0, @-r15 70 mov.l r1, @-r15 71 mov.l r2, @-r15 72 mov.l r3, @-r15 73 mov.l r4, @-r15 74 mov.l r5, @-r15 75 mov.l r6, @-r15 76 mov.l r7, @-r15 77 78 mov.l 7834f, r0 79 jsr @r0 80 nop 81 82 mov.l @r15+, r7 83 mov.l @r15+, r6 84 mov.l @r15+, r5 85 mov.l @r15+, r4 86 mov.l @r15+, r3 87 mov.l @r15+, r2 88 mov.l @r15+, r1 89 mov.l @r15+, r0 90 mov.l 7834f, r0 91 92 bra 7835f 93 nop 94 .balign 4 95 7834: .long trace_hardirqs_off 96 7835: 97 .endm 98 99 #else 100 .macro TRACE_IRQS_ON 101 .endm 102 103 .macro TRACE_IRQS_OFF 104 .endm 105 #endif 106 107 #if defined(CONFIG_CPU_SH2A) || defined(CONFIG_CPU_SH4) 108 # define PREF(x) pref @x 109 #else 110 # define PREF(x) nop 111 #endif 112 113 /* 114 * Macro for use within assembly. Because the DWARF unwinder 115 * needs to use the frame register to unwind the stack, we 116 * need to setup r14 with the value of the stack pointer as 117 * the return address is usually on the stack somewhere. 118 */ 119 .macro setup_frame_reg 120 #ifdef CONFIG_DWARF_UNWINDER 121 mov r15, r14 122 #endif 123 .endm 124