projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 1e59de90 TL |
1 | /******************************************************* |
| 2 | * * | |
| 3 | * ------------------------------------------------- * | |
| 4 | * | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | * | |
| 5 | * ------------------------------------------------- * | |
| 6 | * | 0 | 8 | 16 | 24 | * | |
| 7 | * ------------------------------------------------- * | |
| 8 | * | FS0 | FS1 | FS2 | FS3 | * | |
| 9 | * ------------------------------------------------- * | |
| 10 | * ------------------------------------------------- * | |
| 11 | * | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | * | |
| 12 | * ------------------------------------------------- * | |
| 13 | * | 32 | 40 | 48 | 56 | * | |
| 14 | * ------------------------------------------------- * | |
| 15 | * | FS4 | FS5 | FS6 | FS7 | * | |
| 16 | * ------------------------------------------------- * | |
| 17 | * ------------------------------------------------- * | |
| 18 | * | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | * | |
| 19 | * ------------------------------------------------- * | |
| 20 | * | 64 | 72 | 80 | 88 | * | |
| 21 | * ------------------------------------------------- * | |
| 22 | * | S0 | S1 | S2 | S3 | * | |
| 23 | * ------------------------------------------------- * | |
| 24 | * ------------------------------------------------- * | |
| 25 | * | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | * | |
| 26 | * ------------------------------------------------- * | |
| 27 | * | 96 | 100 | 104 | 108 | 112 | 116 | 120 | 124 | * | |
| 28 | * ------------------------------------------------- * | |
| 29 | * | S4 | S5 | S6 | S7 | * | |
| 30 | * ------------------------------------------------- * | |
| 31 | * ------------------------------------------------- * | |
| 32 | * | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | * | |
| 33 | * ------------------------------------------------- * | |
| 34 | * | 128 | 132 | 136 | 140 | 144 | 148 | 152 | 156 | * | |
| 35 | * ------------------------------------------------- * | |
| 36 | * | S8 | FP | RA | PC | * | |
| 37 | * ------------------------------------------------- * | |
| 38 | * * | |
| 39 | * *****************************************************/ | |
| 40 | ||
| 41 | .file "jump_loongarch64_sysv_elf_gas.S" | |
| 42 | .text | |
| 43 | .globl jump_fcontext | |
| 44 | .align 2 | |
| 45 | .type jump_fcontext,@function | |
| 46 | jump_fcontext: | |
| 47 | # reserve space on stack | |
| 48 | addi.d $sp, $sp, -160 | |
| 49 | ||
| 50 | # save fs0 - fs7 | |
| 51 | fst.d $fs0, $sp, 0 | |
| 52 | fst.d $fs1, $sp, 8 | |
| 53 | fst.d $fs2, $sp, 16 | |
| 54 | fst.d $fs3, $sp, 24 | |
| 55 | fst.d $fs4, $sp, 32 | |
| 56 | fst.d $fs5, $sp, 40 | |
| 57 | fst.d $fs6, $sp, 48 | |
| 58 | fst.d $fs7, $sp, 56 | |
| 59 | ||
| 60 | # save s0 - s8, fp, ra | |
| 61 | st.d $s0, $sp, 64 | |
| 62 | st.d $s1, $sp, 72 | |
| 63 | st.d $s2, $sp, 80 | |
| 64 | st.d $s3, $sp, 88 | |
| 65 | st.d $s4, $sp, 96 | |
| 66 | st.d $s5, $sp, 104 | |
| 67 | st.d $s6, $sp, 112 | |
| 68 | st.d $s7, $sp, 120 | |
| 69 | st.d $s8, $sp, 128 | |
| 70 | st.d $fp, $sp, 136 | |
| 71 | st.d $ra, $sp, 144 | |
| 72 | ||
| 73 | # save RA as PC | |
| 74 | st.d $ra, $sp, 152 | |
| 75 | ||
| 76 | # store SP (pointing to context-data) in A2 | |
| 77 | move $a2, $sp | |
| 78 | ||
| 79 | # restore SP (pointing to context-data) from A0 | |
| 80 | move $sp, $a0 | |
| 81 | ||
| 82 | # load fs0 - fs7 | |
| 83 | fld.d $fs0, $sp, 0 | |
| 84 | fld.d $fs1, $sp, 8 | |
| 85 | fld.d $fs2, $sp, 16 | |
| 86 | fld.d $fs3, $sp, 24 | |
| 87 | fld.d $fs4, $sp, 32 | |
| 88 | fld.d $fs5, $sp, 40 | |
| 89 | fld.d $fs6, $sp, 48 | |
| 90 | fld.d $fs7, $sp, 56 | |
| 91 | ||
| 92 | #load s0 - s7 | |
| 93 | ld.d $s0, $sp, 64 | |
| 94 | ld.d $s1, $sp, 72 | |
| 95 | ld.d $s2, $sp, 80 | |
| 96 | ld.d $s3, $sp, 88 | |
| 97 | ld.d $s4, $sp, 96 | |
| 98 | ld.d $s5, $sp, 104 | |
| 99 | ld.d $s6, $sp, 112 | |
| 100 | ld.d $s7, $sp, 120 | |
| 101 | ld.d $s8, $sp, 128 | |
| 102 | ld.d $fp, $sp, 136 | |
| 103 | ld.d $ra, $sp, 144 | |
| 104 | ||
| 105 | # return transfer_t from jump | |
| 106 | # pass transfer_t as first arg in context function | |
| 107 | # a0 == FCTX, a1 == DATA | |
| 108 | move $a0, $a2 | |
| 109 | ||
| 110 | # load PC | |
| 111 | ld.d $a2, $sp, 152 | |
| 112 | ||
| 113 | # restore stack | |
| 114 | addi.d $sp, $sp, 160 | |
| 115 | ||
| 116 | # jump to context | |
| 117 | jr $a2 | |
| 118 | .size jump_fcontext, .-jump_fcontext | |
| 119 | ||
| 120 | /* Mark that we don't need executable stack. */ | |
| 121 | .section .note.GNU-stack,"",%progbits |