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Diffstat (limited to 'arch/mips/kernel/octeon_switch.S')
| -rw-r--r-- | arch/mips/kernel/octeon_switch.S | 547 |
1 files changed, 547 insertions, 0 deletions
diff --git a/arch/mips/kernel/octeon_switch.S b/arch/mips/kernel/octeon_switch.S new file mode 100644 index 0000000000..447a3ea14a --- /dev/null +++ b/arch/mips/kernel/octeon_switch.S @@ -0,0 +1,547 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 1994, 1995, 1996, 1998, 1999, 2002, 2003 Ralf Baechle + * Copyright (C) 1996 David S. Miller (davem@davemloft.net) + * Copyright (C) 1994, 1995, 1996, by Andreas Busse + * Copyright (C) 1999 Silicon Graphics, Inc. + * Copyright (C) 2000 MIPS Technologies, Inc. + * written by Carsten Langgaard, carstenl@mips.com + */ +#include <asm/asm.h> +#include <asm/asm-offsets.h> +#include <asm/mipsregs.h> +#include <asm/regdef.h> +#include <asm/stackframe.h> + +/* + * task_struct *resume(task_struct *prev, task_struct *next, + * struct thread_info *next_ti) + */ + .align 7 + LEAF(resume) + .set arch=octeon + mfc0 t1, CP0_STATUS + LONG_S t1, THREAD_STATUS(a0) + cpu_save_nonscratch a0 + LONG_S ra, THREAD_REG31(a0) + +#if CONFIG_CAVIUM_OCTEON_CVMSEG_SIZE > 0 + /* Check if we need to store CVMSEG state */ + dmfc0 t0, $11,7 /* CvmMemCtl */ + bbit0 t0, 6, 3f /* Is user access enabled? */ + + /* Store the CVMSEG state */ + /* Extract the size of CVMSEG */ + andi t0, 0x3f + /* Multiply * (cache line size/sizeof(long)/2) */ + sll t0, 7-LONGLOG-1 + li t1, -32768 /* Base address of CVMSEG */ + LONG_ADDI t2, a0, THREAD_CVMSEG /* Where to store CVMSEG to */ + synciobdma +2: + .set noreorder + LONG_L t8, 0(t1) /* Load from CVMSEG */ + subu t0, 1 /* Decrement loop var */ + LONG_L t9, LONGSIZE(t1)/* Load from CVMSEG */ + LONG_ADDU t1, LONGSIZE*2 /* Increment loc in CVMSEG */ + LONG_S t8, 0(t2) /* Store CVMSEG to thread storage */ + LONG_ADDU t2, LONGSIZE*2 /* Increment loc in thread storage */ + bnez t0, 2b /* Loop until we've copied it all */ + LONG_S t9, -LONGSIZE(t2)/* Store CVMSEG to thread storage */ + .set reorder + + /* Disable access to CVMSEG */ + dmfc0 t0, $11,7 /* CvmMemCtl */ + xori t0, t0, 0x40 /* Bit 6 is CVMSEG user enable */ + dmtc0 t0, $11,7 /* CvmMemCtl */ +#endif +3: + +#if defined(CONFIG_STACKPROTECTOR) && !defined(CONFIG_SMP) + PTR_LA t8, __stack_chk_guard + LONG_L t9, TASK_STACK_CANARY(a1) + LONG_S t9, 0(t8) +#endif + + /* + * The order of restoring the registers takes care of the race + * updating $28, $29 and kernelsp without disabling ints. + */ + move $28, a2 + cpu_restore_nonscratch a1 + + PTR_ADDU t0, $28, _THREAD_SIZE - 32 + set_saved_sp t0, t1, t2 + + mfc0 t1, CP0_STATUS /* Do we really need this? */ + li a3, 0xff01 + and t1, a3 + LONG_L a2, THREAD_STATUS(a1) + nor a3, $0, a3 + and a2, a3 + or a2, t1 + mtc0 a2, CP0_STATUS + move v0, a0 + jr ra + END(resume) + +/* + * void octeon_cop2_save(struct octeon_cop2_state *a0) + */ + .align 7 + .set push + .set noreorder + LEAF(octeon_cop2_save) + + dmfc0 t9, $9,7 /* CvmCtl register. */ + + /* Save the COP2 CRC state */ + dmfc2 t0, 0x0201 + dmfc2 t1, 0x0202 + dmfc2 t2, 0x0200 + sd t0, OCTEON_CP2_CRC_IV(a0) + sd t1, OCTEON_CP2_CRC_LENGTH(a0) + /* Skip next instructions if CvmCtl[NODFA_CP2] set */ + bbit1 t9, 28, 1f + sd t2, OCTEON_CP2_CRC_POLY(a0) + + /* Save the LLM state */ + dmfc2 t0, 0x0402 + dmfc2 t1, 0x040A + sd t0, OCTEON_CP2_LLM_DAT(a0) + +1: bbit1 t9, 26, 3f /* done if CvmCtl[NOCRYPTO] set */ + sd t1, OCTEON_CP2_LLM_DAT+8(a0) + + /* Save the COP2 crypto state */ + /* this part is mostly common to both pass 1 and later revisions */ + dmfc2 t0, 0x0084 + dmfc2 t1, 0x0080 + dmfc2 t2, 0x0081 + dmfc2 t3, 0x0082 + sd t0, OCTEON_CP2_3DES_IV(a0) + dmfc2 t0, 0x0088 + sd t1, OCTEON_CP2_3DES_KEY(a0) + dmfc2 t1, 0x0111 /* only necessary for pass 1 */ + sd t2, OCTEON_CP2_3DES_KEY+8(a0) + dmfc2 t2, 0x0102 + sd t3, OCTEON_CP2_3DES_KEY+16(a0) + dmfc2 t3, 0x0103 + sd t0, OCTEON_CP2_3DES_RESULT(a0) + dmfc2 t0, 0x0104 + sd t1, OCTEON_CP2_AES_INP0(a0) /* only necessary for pass 1 */ + dmfc2 t1, 0x0105 + sd t2, OCTEON_CP2_AES_IV(a0) + dmfc2 t2, 0x0106 + sd t3, OCTEON_CP2_AES_IV+8(a0) + dmfc2 t3, 0x0107 + sd t0, OCTEON_CP2_AES_KEY(a0) + dmfc2 t0, 0x0110 + sd t1, OCTEON_CP2_AES_KEY+8(a0) + dmfc2 t1, 0x0100 + sd t2, OCTEON_CP2_AES_KEY+16(a0) + dmfc2 t2, 0x0101 + sd t3, OCTEON_CP2_AES_KEY+24(a0) + mfc0 v0, $15,0 /* Get the processor ID register */ + sd t0, OCTEON_CP2_AES_KEYLEN(a0) + li v1, 0x000d0000 /* This is the processor ID of Octeon Pass1 */ + sd t1, OCTEON_CP2_AES_RESULT(a0) + /* Skip to the Pass1 version of the remainder of the COP2 state */ + beq v0, v1, 2f + sd t2, OCTEON_CP2_AES_RESULT+8(a0) + + /* the non-pass1 state when !CvmCtl[NOCRYPTO] */ + dmfc2 t1, 0x0240 + dmfc2 t2, 0x0241 + ori v1, v1, 0x9500 /* lowest OCTEON III PrId*/ + dmfc2 t3, 0x0242 + subu v1, v0, v1 /* prid - lowest OCTEON III PrId */ + dmfc2 t0, 0x0243 + sd t1, OCTEON_CP2_HSH_DATW(a0) + dmfc2 t1, 0x0244 + sd t2, OCTEON_CP2_HSH_DATW+8(a0) + dmfc2 t2, 0x0245 + sd t3, OCTEON_CP2_HSH_DATW+16(a0) + dmfc2 t3, 0x0246 + sd t0, OCTEON_CP2_HSH_DATW+24(a0) + dmfc2 t0, 0x0247 + sd t1, OCTEON_CP2_HSH_DATW+32(a0) + dmfc2 t1, 0x0248 + sd t2, OCTEON_CP2_HSH_DATW+40(a0) + dmfc2 t2, 0x0249 + sd t3, OCTEON_CP2_HSH_DATW+48(a0) + dmfc2 t3, 0x024A + sd t0, OCTEON_CP2_HSH_DATW+56(a0) + dmfc2 t0, 0x024B + sd t1, OCTEON_CP2_HSH_DATW+64(a0) + dmfc2 t1, 0x024C + sd t2, OCTEON_CP2_HSH_DATW+72(a0) + dmfc2 t2, 0x024D + sd t3, OCTEON_CP2_HSH_DATW+80(a0) + dmfc2 t3, 0x024E + sd t0, OCTEON_CP2_HSH_DATW+88(a0) + dmfc2 t0, 0x0250 + sd t1, OCTEON_CP2_HSH_DATW+96(a0) + dmfc2 t1, 0x0251 + sd t2, OCTEON_CP2_HSH_DATW+104(a0) + dmfc2 t2, 0x0252 + sd t3, OCTEON_CP2_HSH_DATW+112(a0) + dmfc2 t3, 0x0253 + sd t0, OCTEON_CP2_HSH_IVW(a0) + dmfc2 t0, 0x0254 + sd t1, OCTEON_CP2_HSH_IVW+8(a0) + dmfc2 t1, 0x0255 + sd t2, OCTEON_CP2_HSH_IVW+16(a0) + dmfc2 t2, 0x0256 + sd t3, OCTEON_CP2_HSH_IVW+24(a0) + dmfc2 t3, 0x0257 + sd t0, OCTEON_CP2_HSH_IVW+32(a0) + dmfc2 t0, 0x0258 + sd t1, OCTEON_CP2_HSH_IVW+40(a0) + dmfc2 t1, 0x0259 + sd t2, OCTEON_CP2_HSH_IVW+48(a0) + dmfc2 t2, 0x025E + sd t3, OCTEON_CP2_HSH_IVW+56(a0) + dmfc2 t3, 0x025A + sd t0, OCTEON_CP2_GFM_MULT(a0) + dmfc2 t0, 0x025B + sd t1, OCTEON_CP2_GFM_MULT+8(a0) + sd t2, OCTEON_CP2_GFM_POLY(a0) + sd t3, OCTEON_CP2_GFM_RESULT(a0) + bltz v1, 4f + sd t0, OCTEON_CP2_GFM_RESULT+8(a0) + /* OCTEON III things*/ + dmfc2 t0, 0x024F + dmfc2 t1, 0x0050 + sd t0, OCTEON_CP2_SHA3(a0) + sd t1, OCTEON_CP2_SHA3+8(a0) +4: + jr ra + nop + +2: /* pass 1 special stuff when !CvmCtl[NOCRYPTO] */ + dmfc2 t3, 0x0040 + dmfc2 t0, 0x0041 + dmfc2 t1, 0x0042 + dmfc2 t2, 0x0043 + sd t3, OCTEON_CP2_HSH_DATW(a0) + dmfc2 t3, 0x0044 + sd t0, OCTEON_CP2_HSH_DATW+8(a0) + dmfc2 t0, 0x0045 + sd t1, OCTEON_CP2_HSH_DATW+16(a0) + dmfc2 t1, 0x0046 + sd t2, OCTEON_CP2_HSH_DATW+24(a0) + dmfc2 t2, 0x0048 + sd t3, OCTEON_CP2_HSH_DATW+32(a0) + dmfc2 t3, 0x0049 + sd t0, OCTEON_CP2_HSH_DATW+40(a0) + dmfc2 t0, 0x004A + sd t1, OCTEON_CP2_HSH_DATW+48(a0) + sd t2, OCTEON_CP2_HSH_IVW(a0) + sd t3, OCTEON_CP2_HSH_IVW+8(a0) + sd t0, OCTEON_CP2_HSH_IVW+16(a0) + +3: /* pass 1 or CvmCtl[NOCRYPTO] set */ + jr ra + nop + END(octeon_cop2_save) + .set pop + +/* + * void octeon_cop2_restore(struct octeon_cop2_state *a0) + */ + .align 7 + .set push + .set noreorder + LEAF(octeon_cop2_restore) + /* First cache line was prefetched before the call */ + pref 4, 128(a0) + dmfc0 t9, $9,7 /* CvmCtl register. */ + + pref 4, 256(a0) + ld t0, OCTEON_CP2_CRC_IV(a0) + pref 4, 384(a0) + ld t1, OCTEON_CP2_CRC_LENGTH(a0) + ld t2, OCTEON_CP2_CRC_POLY(a0) + + /* Restore the COP2 CRC state */ + dmtc2 t0, 0x0201 + dmtc2 t1, 0x1202 + bbit1 t9, 28, 2f /* Skip LLM if CvmCtl[NODFA_CP2] is set */ + dmtc2 t2, 0x4200 + + /* Restore the LLM state */ + ld t0, OCTEON_CP2_LLM_DAT(a0) + ld t1, OCTEON_CP2_LLM_DAT+8(a0) + dmtc2 t0, 0x0402 + dmtc2 t1, 0x040A + +2: + bbit1 t9, 26, done_restore /* done if CvmCtl[NOCRYPTO] set */ + nop + + /* Restore the COP2 crypto state common to pass 1 and pass 2 */ + ld t0, OCTEON_CP2_3DES_IV(a0) + ld t1, OCTEON_CP2_3DES_KEY(a0) + ld t2, OCTEON_CP2_3DES_KEY+8(a0) + dmtc2 t0, 0x0084 + ld t0, OCTEON_CP2_3DES_KEY+16(a0) + dmtc2 t1, 0x0080 + ld t1, OCTEON_CP2_3DES_RESULT(a0) + dmtc2 t2, 0x0081 + ld t2, OCTEON_CP2_AES_INP0(a0) /* only really needed for pass 1 */ + dmtc2 t0, 0x0082 + ld t0, OCTEON_CP2_AES_IV(a0) + dmtc2 t1, 0x0098 + ld t1, OCTEON_CP2_AES_IV+8(a0) + dmtc2 t2, 0x010A /* only really needed for pass 1 */ + ld t2, OCTEON_CP2_AES_KEY(a0) + dmtc2 t0, 0x0102 + ld t0, OCTEON_CP2_AES_KEY+8(a0) + dmtc2 t1, 0x0103 + ld t1, OCTEON_CP2_AES_KEY+16(a0) + dmtc2 t2, 0x0104 + ld t2, OCTEON_CP2_AES_KEY+24(a0) + dmtc2 t0, 0x0105 + ld t0, OCTEON_CP2_AES_KEYLEN(a0) + dmtc2 t1, 0x0106 + ld t1, OCTEON_CP2_AES_RESULT(a0) + dmtc2 t2, 0x0107 + ld t2, OCTEON_CP2_AES_RESULT+8(a0) + mfc0 t3, $15,0 /* Get the processor ID register */ + dmtc2 t0, 0x0110 + li v0, 0x000d0000 /* This is the processor ID of Octeon Pass1 */ + dmtc2 t1, 0x0100 + bne v0, t3, 3f /* Skip the next stuff for non-pass1 */ + dmtc2 t2, 0x0101 + + /* this code is specific for pass 1 */ + ld t0, OCTEON_CP2_HSH_DATW(a0) + ld t1, OCTEON_CP2_HSH_DATW+8(a0) + ld t2, OCTEON_CP2_HSH_DATW+16(a0) + dmtc2 t0, 0x0040 + ld t0, OCTEON_CP2_HSH_DATW+24(a0) + dmtc2 t1, 0x0041 + ld t1, OCTEON_CP2_HSH_DATW+32(a0) + dmtc2 t2, 0x0042 + ld t2, OCTEON_CP2_HSH_DATW+40(a0) + dmtc2 t0, 0x0043 + ld t0, OCTEON_CP2_HSH_DATW+48(a0) + dmtc2 t1, 0x0044 + ld t1, OCTEON_CP2_HSH_IVW(a0) + dmtc2 t2, 0x0045 + ld t2, OCTEON_CP2_HSH_IVW+8(a0) + dmtc2 t0, 0x0046 + ld t0, OCTEON_CP2_HSH_IVW+16(a0) + dmtc2 t1, 0x0048 + dmtc2 t2, 0x0049 + b done_restore /* unconditional branch */ + dmtc2 t0, 0x004A + +3: /* this is post-pass1 code */ + ld t2, OCTEON_CP2_HSH_DATW(a0) + ori v0, v0, 0x9500 /* lowest OCTEON III PrId*/ + ld t0, OCTEON_CP2_HSH_DATW+8(a0) + ld t1, OCTEON_CP2_HSH_DATW+16(a0) + dmtc2 t2, 0x0240 + ld t2, OCTEON_CP2_HSH_DATW+24(a0) + dmtc2 t0, 0x0241 + ld t0, OCTEON_CP2_HSH_DATW+32(a0) + dmtc2 t1, 0x0242 + ld t1, OCTEON_CP2_HSH_DATW+40(a0) + dmtc2 t2, 0x0243 + ld t2, OCTEON_CP2_HSH_DATW+48(a0) + dmtc2 t0, 0x0244 + ld t0, OCTEON_CP2_HSH_DATW+56(a0) + dmtc2 t1, 0x0245 + ld t1, OCTEON_CP2_HSH_DATW+64(a0) + dmtc2 t2, 0x0246 + ld t2, OCTEON_CP2_HSH_DATW+72(a0) + dmtc2 t0, 0x0247 + ld t0, OCTEON_CP2_HSH_DATW+80(a0) + dmtc2 t1, 0x0248 + ld t1, OCTEON_CP2_HSH_DATW+88(a0) + dmtc2 t2, 0x0249 + ld t2, OCTEON_CP2_HSH_DATW+96(a0) + dmtc2 t0, 0x024A + ld t0, OCTEON_CP2_HSH_DATW+104(a0) + dmtc2 t1, 0x024B + ld t1, OCTEON_CP2_HSH_DATW+112(a0) + dmtc2 t2, 0x024C + ld t2, OCTEON_CP2_HSH_IVW(a0) + dmtc2 t0, 0x024D + ld t0, OCTEON_CP2_HSH_IVW+8(a0) + dmtc2 t1, 0x024E + ld t1, OCTEON_CP2_HSH_IVW+16(a0) + dmtc2 t2, 0x0250 + ld t2, OCTEON_CP2_HSH_IVW+24(a0) + dmtc2 t0, 0x0251 + ld t0, OCTEON_CP2_HSH_IVW+32(a0) + dmtc2 t1, 0x0252 + ld t1, OCTEON_CP2_HSH_IVW+40(a0) + dmtc2 t2, 0x0253 + ld t2, OCTEON_CP2_HSH_IVW+48(a0) + dmtc2 t0, 0x0254 + ld t0, OCTEON_CP2_HSH_IVW+56(a0) + dmtc2 t1, 0x0255 + ld t1, OCTEON_CP2_GFM_MULT(a0) + dmtc2 t2, 0x0256 + ld t2, OCTEON_CP2_GFM_MULT+8(a0) + dmtc2 t0, 0x0257 + ld t0, OCTEON_CP2_GFM_POLY(a0) + dmtc2 t1, 0x0258 + ld t1, OCTEON_CP2_GFM_RESULT(a0) + dmtc2 t2, 0x0259 + ld t2, OCTEON_CP2_GFM_RESULT+8(a0) + dmtc2 t0, 0x025E + subu v0, t3, v0 /* prid - lowest OCTEON III PrId */ + dmtc2 t1, 0x025A + bltz v0, done_restore + dmtc2 t2, 0x025B + /* OCTEON III things*/ + ld t0, OCTEON_CP2_SHA3(a0) + ld t1, OCTEON_CP2_SHA3+8(a0) + dmtc2 t0, 0x0051 + dmtc2 t1, 0x0050 +done_restore: + jr ra + nop + END(octeon_cop2_restore) + .set pop + +/* + * void octeon_mult_save() + * sp is assumed to point to a struct pt_regs + * + * NOTE: This is called in SAVE_TEMP in stackframe.h. It can + * safely modify v1,k0, k1,$10-$15, and $24. It will + * be overwritten with a processor specific version of the code. + */ + .p2align 7 + .set push + .set noreorder + LEAF(octeon_mult_save) + jr ra + nop + .space 30 * 4, 0 + EXPORT(octeon_mult_save_end) + END(octeon_mult_save) + + LEAF(octeon_mult_save2) + /* Save the multiplier state OCTEON II and earlier*/ + v3mulu k0, $0, $0 + v3mulu k1, $0, $0 + sd k0, PT_MTP(sp) /* PT_MTP has P0 */ + v3mulu k0, $0, $0 + sd k1, PT_MTP+8(sp) /* PT_MTP+8 has P1 */ + ori k1, $0, 1 + v3mulu k1, k1, $0 + sd k0, PT_MTP+16(sp) /* PT_MTP+16 has P2 */ + v3mulu k0, $0, $0 + sd k1, PT_MPL(sp) /* PT_MPL has MPL0 */ + v3mulu k1, $0, $0 + sd k0, PT_MPL+8(sp) /* PT_MPL+8 has MPL1 */ + jr ra + sd k1, PT_MPL+16(sp) /* PT_MPL+16 has MPL2 */ + EXPORT(octeon_mult_save2_end) + END(octeon_mult_save2) + + LEAF(octeon_mult_save3) + /* Save the multiplier state OCTEON III */ + v3mulu $10, $0, $0 /* read P0 */ + v3mulu $11, $0, $0 /* read P1 */ + v3mulu $12, $0, $0 /* read P2 */ + sd $10, PT_MTP+(0*8)(sp) /* store P0 */ + v3mulu $10, $0, $0 /* read P3 */ + sd $11, PT_MTP+(1*8)(sp) /* store P1 */ + v3mulu $11, $0, $0 /* read P4 */ + sd $12, PT_MTP+(2*8)(sp) /* store P2 */ + ori $13, $0, 1 + v3mulu $12, $0, $0 /* read P5 */ + sd $10, PT_MTP+(3*8)(sp) /* store P3 */ + v3mulu $13, $13, $0 /* P4-P0 = MPL5-MPL1, $13 = MPL0 */ + sd $11, PT_MTP+(4*8)(sp) /* store P4 */ + v3mulu $10, $0, $0 /* read MPL1 */ + sd $12, PT_MTP+(5*8)(sp) /* store P5 */ + v3mulu $11, $0, $0 /* read MPL2 */ + sd $13, PT_MPL+(0*8)(sp) /* store MPL0 */ + v3mulu $12, $0, $0 /* read MPL3 */ + sd $10, PT_MPL+(1*8)(sp) /* store MPL1 */ + v3mulu $10, $0, $0 /* read MPL4 */ + sd $11, PT_MPL+(2*8)(sp) /* store MPL2 */ + v3mulu $11, $0, $0 /* read MPL5 */ + sd $12, PT_MPL+(3*8)(sp) /* store MPL3 */ + sd $10, PT_MPL+(4*8)(sp) /* store MPL4 */ + jr ra + sd $11, PT_MPL+(5*8)(sp) /* store MPL5 */ + EXPORT(octeon_mult_save3_end) + END(octeon_mult_save3) + .set pop + +/* + * void octeon_mult_restore() + * sp is assumed to point to a struct pt_regs + * + * NOTE: This is called in RESTORE_TEMP in stackframe.h. + */ + .p2align 7 + .set push + .set noreorder + LEAF(octeon_mult_restore) + jr ra + nop + .space 30 * 4, 0 + EXPORT(octeon_mult_restore_end) + END(octeon_mult_restore) + + LEAF(octeon_mult_restore2) + ld v0, PT_MPL(sp) /* MPL0 */ + ld v1, PT_MPL+8(sp) /* MPL1 */ + ld k0, PT_MPL+16(sp) /* MPL2 */ + /* Restore the multiplier state */ + ld k1, PT_MTP+16(sp) /* P2 */ + mtm0 v0 /* MPL0 */ + ld v0, PT_MTP+8(sp) /* P1 */ + mtm1 v1 /* MPL1 */ + ld v1, PT_MTP(sp) /* P0 */ + mtm2 k0 /* MPL2 */ + mtp2 k1 /* P2 */ + mtp1 v0 /* P1 */ + jr ra + mtp0 v1 /* P0 */ + EXPORT(octeon_mult_restore2_end) + END(octeon_mult_restore2) + + LEAF(octeon_mult_restore3) + ld $12, PT_MPL+(0*8)(sp) /* read MPL0 */ + ld $13, PT_MPL+(3*8)(sp) /* read MPL3 */ + ld $10, PT_MPL+(1*8)(sp) /* read MPL1 */ + ld $11, PT_MPL+(4*8)(sp) /* read MPL4 */ + .word 0x718d0008 + /* mtm0 $12, $13 restore MPL0 and MPL3 */ + ld $12, PT_MPL+(2*8)(sp) /* read MPL2 */ + .word 0x714b000c + /* mtm1 $10, $11 restore MPL1 and MPL4 */ + ld $13, PT_MPL+(5*8)(sp) /* read MPL5 */ + ld $10, PT_MTP+(0*8)(sp) /* read P0 */ + ld $11, PT_MTP+(3*8)(sp) /* read P3 */ + .word 0x718d000d + /* mtm2 $12, $13 restore MPL2 and MPL5 */ + ld $12, PT_MTP+(1*8)(sp) /* read P1 */ + .word 0x714b0009 + /* mtp0 $10, $11 restore P0 and P3 */ + ld $13, PT_MTP+(4*8)(sp) /* read P4 */ + ld $10, PT_MTP+(2*8)(sp) /* read P2 */ + ld $11, PT_MTP+(5*8)(sp) /* read P5 */ + .word 0x718d000a + /* mtp1 $12, $13 restore P1 and P4 */ + jr ra + .word 0x714b000b + /* mtp2 $10, $11 restore P2 and P5 */ + + EXPORT(octeon_mult_restore3_end) + END(octeon_mult_restore3) + .set pop |