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