| /* |
| * 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/export.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 |
| 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 |
