mirror of https://gitee.com/openkylin/linux.git
Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Merge crypto-2.6 to pick up NEON yield revert.
This commit is contained in:
Herbert Xu
commit
3465893d27
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@ -19,33 +19,24 @@
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* u32 *macp, u8 const rk[], u32 rounds);
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*/
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ENTRY(ce_aes_ccm_auth_data)
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frame_push 7
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mov x19, x0
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mov x20, x1
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mov x21, x2
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mov x22, x3
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mov x23, x4
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mov x24, x5
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ldr w25, [x22] /* leftover from prev round? */
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ldr w8, [x3] /* leftover from prev round? */
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ld1 {v0.16b}, [x0] /* load mac */
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cbz w25, 1f
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sub w25, w25, #16
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cbz w8, 1f
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sub w8, w8, #16
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eor v1.16b, v1.16b, v1.16b
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0: ldrb w7, [x20], #1 /* get 1 byte of input */
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subs w21, w21, #1
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add w25, w25, #1
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0: ldrb w7, [x1], #1 /* get 1 byte of input */
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subs w2, w2, #1
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add w8, w8, #1
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ins v1.b[0], w7
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ext v1.16b, v1.16b, v1.16b, #1 /* rotate in the input bytes */
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beq 8f /* out of input? */
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cbnz w25, 0b
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cbnz w8, 0b
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eor v0.16b, v0.16b, v1.16b
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1: ld1 {v3.4s}, [x23] /* load first round key */
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prfm pldl1strm, [x20]
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cmp w24, #12 /* which key size? */
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add x6, x23, #16
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sub w7, w24, #2 /* modified # of rounds */
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1: ld1 {v3.4s}, [x4] /* load first round key */
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prfm pldl1strm, [x1]
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cmp w5, #12 /* which key size? */
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add x6, x4, #16
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sub w7, w5, #2 /* modified # of rounds */
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bmi 2f
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bne 5f
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mov v5.16b, v3.16b
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@ -64,43 +55,33 @@ ENTRY(ce_aes_ccm_auth_data)
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ld1 {v5.4s}, [x6], #16 /* load next round key */
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bpl 3b
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aese v0.16b, v4.16b
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subs w21, w21, #16 /* last data? */
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subs w2, w2, #16 /* last data? */
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eor v0.16b, v0.16b, v5.16b /* final round */
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bmi 6f
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ld1 {v1.16b}, [x20], #16 /* load next input block */
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ld1 {v1.16b}, [x1], #16 /* load next input block */
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eor v0.16b, v0.16b, v1.16b /* xor with mac */
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beq 6f
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if_will_cond_yield_neon
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st1 {v0.16b}, [x19] /* store mac */
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do_cond_yield_neon
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ld1 {v0.16b}, [x19] /* reload mac */
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endif_yield_neon
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b 1b
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6: st1 {v0.16b}, [x19] /* store mac */
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bne 1b
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6: st1 {v0.16b}, [x0] /* store mac */
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beq 10f
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adds w21, w21, #16
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adds w2, w2, #16
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beq 10f
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mov w25, w21
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7: ldrb w7, [x20], #1
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mov w8, w2
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7: ldrb w7, [x1], #1
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umov w6, v0.b[0]
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eor w6, w6, w7
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strb w6, [x19], #1
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subs w21, w21, #1
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strb w6, [x0], #1
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subs w2, w2, #1
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beq 10f
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ext v0.16b, v0.16b, v0.16b, #1 /* rotate out the mac bytes */
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b 7b
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8: mov w7, w25
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add w25, w25, #16
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8: mov w7, w8
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add w8, w8, #16
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9: ext v1.16b, v1.16b, v1.16b, #1
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adds w7, w7, #1
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bne 9b
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eor v0.16b, v0.16b, v1.16b
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st1 {v0.16b}, [x19]
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10: str w25, [x22]
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frame_pop
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st1 {v0.16b}, [x0]
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10: str w8, [x3]
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ret
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ENDPROC(ce_aes_ccm_auth_data)
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@ -145,29 +126,19 @@ ENTRY(ce_aes_ccm_final)
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ENDPROC(ce_aes_ccm_final)
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.macro aes_ccm_do_crypt,enc
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frame_push 8
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mov x19, x0
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mov x20, x1
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mov x21, x2
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mov x22, x3
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mov x23, x4
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mov x24, x5
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mov x25, x6
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ldr x26, [x25, #8] /* load lower ctr */
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ld1 {v0.16b}, [x24] /* load mac */
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CPU_LE( rev x26, x26 ) /* keep swabbed ctr in reg */
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ldr x8, [x6, #8] /* load lower ctr */
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ld1 {v0.16b}, [x5] /* load mac */
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CPU_LE( rev x8, x8 ) /* keep swabbed ctr in reg */
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0: /* outer loop */
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ld1 {v1.8b}, [x25] /* load upper ctr */
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prfm pldl1strm, [x20]
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add x26, x26, #1
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rev x9, x26
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cmp w23, #12 /* which key size? */
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sub w7, w23, #2 /* get modified # of rounds */
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ld1 {v1.8b}, [x6] /* load upper ctr */
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prfm pldl1strm, [x1]
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add x8, x8, #1
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rev x9, x8
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cmp w4, #12 /* which key size? */
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sub w7, w4, #2 /* get modified # of rounds */
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ins v1.d[1], x9 /* no carry in lower ctr */
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ld1 {v3.4s}, [x22] /* load first round key */
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add x10, x22, #16
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ld1 {v3.4s}, [x3] /* load first round key */
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add x10, x3, #16
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bmi 1f
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bne 4f
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mov v5.16b, v3.16b
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@ -194,9 +165,9 @@ CPU_LE( rev x26, x26 ) /* keep swabbed ctr in reg */
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bpl 2b
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aese v0.16b, v4.16b
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aese v1.16b, v4.16b
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subs w21, w21, #16
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bmi 7f /* partial block? */
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ld1 {v2.16b}, [x20], #16 /* load next input block */
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subs w2, w2, #16
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bmi 6f /* partial block? */
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ld1 {v2.16b}, [x1], #16 /* load next input block */
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.if \enc == 1
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eor v2.16b, v2.16b, v5.16b /* final round enc+mac */
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eor v1.16b, v1.16b, v2.16b /* xor with crypted ctr */
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@ -205,29 +176,18 @@ CPU_LE( rev x26, x26 ) /* keep swabbed ctr in reg */
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eor v1.16b, v2.16b, v5.16b /* final round enc */
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.endif
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eor v0.16b, v0.16b, v2.16b /* xor mac with pt ^ rk[last] */
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st1 {v1.16b}, [x19], #16 /* write output block */
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beq 5f
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st1 {v1.16b}, [x0], #16 /* write output block */
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bne 0b
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CPU_LE( rev x8, x8 )
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st1 {v0.16b}, [x5] /* store mac */
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str x8, [x6, #8] /* store lsb end of ctr (BE) */
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5: ret
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if_will_cond_yield_neon
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st1 {v0.16b}, [x24] /* store mac */
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do_cond_yield_neon
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ld1 {v0.16b}, [x24] /* reload mac */
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endif_yield_neon
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b 0b
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5:
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CPU_LE( rev x26, x26 )
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st1 {v0.16b}, [x24] /* store mac */
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str x26, [x25, #8] /* store lsb end of ctr (BE) */
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6: frame_pop
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ret
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7: eor v0.16b, v0.16b, v5.16b /* final round mac */
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6: eor v0.16b, v0.16b, v5.16b /* final round mac */
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eor v1.16b, v1.16b, v5.16b /* final round enc */
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st1 {v0.16b}, [x24] /* store mac */
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add w21, w21, #16 /* process partial tail block */
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8: ldrb w9, [x20], #1 /* get 1 byte of input */
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st1 {v0.16b}, [x5] /* store mac */
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add w2, w2, #16 /* process partial tail block */
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7: ldrb w9, [x1], #1 /* get 1 byte of input */
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umov w6, v1.b[0] /* get top crypted ctr byte */
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umov w7, v0.b[0] /* get top mac byte */
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.if \enc == 1
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@ -237,13 +197,13 @@ CPU_LE( rev x26, x26 )
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eor w9, w9, w6
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eor w7, w7, w9
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.endif
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strb w9, [x19], #1 /* store out byte */
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strb w7, [x24], #1 /* store mac byte */
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subs w21, w21, #1
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beq 6b
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strb w9, [x0], #1 /* store out byte */
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strb w7, [x5], #1 /* store mac byte */
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subs w2, w2, #1
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beq 5b
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ext v0.16b, v0.16b, v0.16b, #1 /* shift out mac byte */
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ext v1.16b, v1.16b, v1.16b, #1 /* shift out ctr byte */
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b 8b
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b 7b
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.endm
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/*
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@ -322,55 +322,41 @@ ENDPROC(pmull_ghash_update_p8)
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.endm
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.macro pmull_gcm_do_crypt, enc
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frame_push 10
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ld1 {SHASH.2d}, [x4]
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ld1 {XL.2d}, [x1]
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ldr x8, [x5, #8] // load lower counter
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mov x19, x0
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mov x20, x1
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mov x21, x2
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mov x22, x3
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mov x23, x4
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mov x24, x5
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mov x25, x6
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mov x26, x7
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.if \enc == 1
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ldr x27, [sp, #96] // first stacked arg
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.endif
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ldr x28, [x24, #8] // load lower counter
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CPU_LE( rev x28, x28 )
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0: mov x0, x25
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load_round_keys w26, x0
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ld1 {SHASH.2d}, [x23]
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ld1 {XL.2d}, [x20]
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load_round_keys w7, x6
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movi MASK.16b, #0xe1
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ext SHASH2.16b, SHASH.16b, SHASH.16b, #8
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CPU_LE( rev x8, x8 )
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shl MASK.2d, MASK.2d, #57
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eor SHASH2.16b, SHASH2.16b, SHASH.16b
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.if \enc == 1
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ld1 {KS.16b}, [x27]
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ldr x10, [sp]
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ld1 {KS.16b}, [x10]
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.endif
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1: ld1 {CTR.8b}, [x24] // load upper counter
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ld1 {INP.16b}, [x22], #16
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rev x9, x28
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add x28, x28, #1
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sub w19, w19, #1
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0: ld1 {CTR.8b}, [x5] // load upper counter
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ld1 {INP.16b}, [x3], #16
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rev x9, x8
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add x8, x8, #1
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sub w0, w0, #1
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ins CTR.d[1], x9 // set lower counter
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.if \enc == 1
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eor INP.16b, INP.16b, KS.16b // encrypt input
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st1 {INP.16b}, [x21], #16
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st1 {INP.16b}, [x2], #16
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.endif
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rev64 T1.16b, INP.16b
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cmp w26, #12
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b.ge 4f // AES-192/256?
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cmp w7, #12
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b.ge 2f // AES-192/256?
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2: enc_round CTR, v21
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1: enc_round CTR, v21
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ext T2.16b, XL.16b, XL.16b, #8
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ext IN1.16b, T1.16b, T1.16b, #8
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@ -425,39 +411,27 @@ CPU_LE( rev x28, x28 )
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.if \enc == 0
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eor INP.16b, INP.16b, KS.16b
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st1 {INP.16b}, [x21], #16
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st1 {INP.16b}, [x2], #16
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.endif
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cbz w19, 3f
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cbnz w0, 0b
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CPU_LE( rev x8, x8 )
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st1 {XL.2d}, [x1]
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str x8, [x5, #8] // store lower counter
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if_will_cond_yield_neon
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st1 {XL.2d}, [x20]
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.if \enc == 1
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st1 {KS.16b}, [x27]
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.endif
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do_cond_yield_neon
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b 0b
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endif_yield_neon
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b 1b
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3: st1 {XL.2d}, [x20]
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.if \enc == 1
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st1 {KS.16b}, [x27]
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st1 {KS.16b}, [x10]
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.endif
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CPU_LE( rev x28, x28 )
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str x28, [x24, #8] // store lower counter
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frame_pop
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ret
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4: b.eq 5f // AES-192?
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2: b.eq 3f // AES-192?
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enc_round CTR, v17
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enc_round CTR, v18
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5: enc_round CTR, v19
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3: enc_round CTR, v19
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enc_round CTR, v20
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b 2b
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b 1b
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.endm
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/*
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@ -266,6 +266,8 @@ static inline void padlock_xcrypt_ecb(const u8 *input, u8 *output, void *key,
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return;
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}
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count -= initial;
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if (initial)
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asm volatile (".byte 0xf3,0x0f,0xa7,0xc8" /* rep xcryptecb */
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: "+S"(input), "+D"(output)
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@ -273,7 +275,7 @@ static inline void padlock_xcrypt_ecb(const u8 *input, u8 *output, void *key,
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asm volatile (".byte 0xf3,0x0f,0xa7,0xc8" /* rep xcryptecb */
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: "+S"(input), "+D"(output)
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: "d"(control_word), "b"(key), "c"(count - initial));
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: "d"(control_word), "b"(key), "c"(count));
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}
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static inline u8 *padlock_xcrypt_cbc(const u8 *input, u8 *output, void *key,
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@ -284,6 +286,8 @@ static inline u8 *padlock_xcrypt_cbc(const u8 *input, u8 *output, void *key,
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if (count < cbc_fetch_blocks)
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return cbc_crypt(input, output, key, iv, control_word, count);
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count -= initial;
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if (initial)
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asm volatile (".byte 0xf3,0x0f,0xa7,0xd0" /* rep xcryptcbc */
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: "+S" (input), "+D" (output), "+a" (iv)
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@ -291,7 +295,7 @@ static inline u8 *padlock_xcrypt_cbc(const u8 *input, u8 *output, void *key,
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asm volatile (".byte 0xf3,0x0f,0xa7,0xd0" /* rep xcryptcbc */
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: "+S" (input), "+D" (output), "+a" (iv)
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: "d" (control_word), "b" (key), "c" (count-initial));
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: "d" (control_word), "b" (key), "c" (count));
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return iv;
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}
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