mirror of https://gitee.com/openkylin/linux.git
481 lines
9.4 KiB
C
481 lines
9.4 KiB
C
/*
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* Support for Vector Instructions
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*
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* Assembler macros to generate .byte/.word code for particular
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* vector instructions that are supported by recent binutils (>= 2.26) only.
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*
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* Copyright IBM Corp. 2015
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* Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
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*/
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#ifndef __ASM_S390_VX_INSN_H
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#define __ASM_S390_VX_INSN_H
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#ifdef __ASSEMBLY__
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/* Macros to generate vector instruction byte code */
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#define REG_NUM_INVALID 255
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/* GR_NUM - Retrieve general-purpose register number
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*
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* @opd: Operand to store register number
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* @r64: String designation register in the format "%rN"
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*/
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.macro GR_NUM opd gr
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\opd = REG_NUM_INVALID
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.ifc \gr,%r0
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\opd = 0
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.endif
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.ifc \gr,%r1
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\opd = 1
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.endif
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.ifc \gr,%r2
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\opd = 2
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.endif
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.ifc \gr,%r3
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\opd = 3
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.endif
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.ifc \gr,%r4
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\opd = 4
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.endif
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.ifc \gr,%r5
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\opd = 5
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.endif
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.ifc \gr,%r6
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\opd = 6
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.endif
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.ifc \gr,%r7
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\opd = 7
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.endif
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.ifc \gr,%r8
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\opd = 8
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.endif
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.ifc \gr,%r9
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\opd = 9
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.endif
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.ifc \gr,%r10
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\opd = 10
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.endif
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.ifc \gr,%r11
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\opd = 11
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.endif
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.ifc \gr,%r12
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\opd = 12
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.endif
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.ifc \gr,%r13
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\opd = 13
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.endif
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.ifc \gr,%r14
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\opd = 14
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.endif
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.ifc \gr,%r15
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\opd = 15
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.endif
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.if \opd == REG_NUM_INVALID
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.error "Invalid general-purpose register designation: \gr"
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.endif
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.endm
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/* VX_R() - Macro to encode the VX_NUM into the instruction */
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#define VX_R(v) (v & 0x0F)
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/* VX_NUM - Retrieve vector register number
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*
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* @opd: Operand to store register number
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* @vxr: String designation register in the format "%vN"
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*
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* The vector register number is used for as input number to the
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* instruction and, as well as, to compute the RXB field of the
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* instruction. To encode the particular vector register number,
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* use the VX_R(v) macro to extract the instruction opcode.
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*/
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.macro VX_NUM opd vxr
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\opd = REG_NUM_INVALID
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.ifc \vxr,%v0
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\opd = 0
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.endif
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.ifc \vxr,%v1
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\opd = 1
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.endif
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.ifc \vxr,%v2
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\opd = 2
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.endif
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.ifc \vxr,%v3
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\opd = 3
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.endif
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.ifc \vxr,%v4
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\opd = 4
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.endif
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.ifc \vxr,%v5
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\opd = 5
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.endif
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.ifc \vxr,%v6
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\opd = 6
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.endif
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.ifc \vxr,%v7
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\opd = 7
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.endif
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.ifc \vxr,%v8
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\opd = 8
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.endif
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.ifc \vxr,%v9
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\opd = 9
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.endif
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.ifc \vxr,%v10
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\opd = 10
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.endif
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.ifc \vxr,%v11
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\opd = 11
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.endif
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.ifc \vxr,%v12
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\opd = 12
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.endif
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.ifc \vxr,%v13
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\opd = 13
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.endif
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.ifc \vxr,%v14
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\opd = 14
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.endif
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.ifc \vxr,%v15
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\opd = 15
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.endif
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.ifc \vxr,%v16
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\opd = 16
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.endif
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.ifc \vxr,%v17
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\opd = 17
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.endif
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.ifc \vxr,%v18
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\opd = 18
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.endif
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.ifc \vxr,%v19
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\opd = 19
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.endif
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.ifc \vxr,%v20
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\opd = 20
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.endif
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.ifc \vxr,%v21
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\opd = 21
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.endif
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.ifc \vxr,%v22
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\opd = 22
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.endif
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.ifc \vxr,%v23
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\opd = 23
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.endif
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.ifc \vxr,%v24
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\opd = 24
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.endif
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.ifc \vxr,%v25
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\opd = 25
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.endif
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.ifc \vxr,%v26
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\opd = 26
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.endif
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.ifc \vxr,%v27
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\opd = 27
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.endif
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.ifc \vxr,%v28
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\opd = 28
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.endif
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.ifc \vxr,%v29
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\opd = 29
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.endif
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.ifc \vxr,%v30
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\opd = 30
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.endif
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.ifc \vxr,%v31
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\opd = 31
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.endif
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.if \opd == REG_NUM_INVALID
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.error "Invalid vector register designation: \vxr"
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.endif
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.endm
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/* RXB - Compute most significant bit used vector registers
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*
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* @rxb: Operand to store computed RXB value
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* @v1: First vector register designated operand
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* @v2: Second vector register designated operand
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* @v3: Third vector register designated operand
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* @v4: Fourth vector register designated operand
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*/
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.macro RXB rxb v1 v2=0 v3=0 v4=0
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\rxb = 0
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.if \v1 & 0x10
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\rxb = \rxb | 0x08
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.endif
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.if \v2 & 0x10
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\rxb = \rxb | 0x04
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.endif
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.if \v3 & 0x10
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\rxb = \rxb | 0x02
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.endif
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.if \v4 & 0x10
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\rxb = \rxb | 0x01
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.endif
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.endm
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/* MRXB - Generate Element Size Control and RXB value
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*
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* @m: Element size control
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* @v1: First vector register designated operand (for RXB)
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* @v2: Second vector register designated operand (for RXB)
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* @v3: Third vector register designated operand (for RXB)
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* @v4: Fourth vector register designated operand (for RXB)
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*/
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.macro MRXB m v1 v2=0 v3=0 v4=0
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rxb = 0
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RXB rxb, \v1, \v2, \v3, \v4
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.byte (\m << 4) | rxb
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.endm
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/* MRXBOPC - Generate Element Size Control, RXB, and final Opcode fields
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*
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* @m: Element size control
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* @opc: Opcode
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* @v1: First vector register designated operand (for RXB)
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* @v2: Second vector register designated operand (for RXB)
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* @v3: Third vector register designated operand (for RXB)
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* @v4: Fourth vector register designated operand (for RXB)
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*/
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.macro MRXBOPC m opc v1 v2=0 v3=0 v4=0
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MRXB \m, \v1, \v2, \v3, \v4
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.byte \opc
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.endm
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/* Vector support instructions */
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/* VECTOR GENERATE BYTE MASK */
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.macro VGBM vr imm2
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VX_NUM v1, \vr
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.word (0xE700 | (VX_R(v1) << 4))
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.word \imm2
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MRXBOPC 0, 0x44, v1
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.endm
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.macro VZERO vxr
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VGBM \vxr, 0
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.endm
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.macro VONE vxr
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VGBM \vxr, 0xFFFF
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.endm
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/* VECTOR LOAD VR ELEMENT FROM GR */
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.macro VLVG v, gr, disp, m
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VX_NUM v1, \v
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GR_NUM b2, "%r0"
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GR_NUM r3, \gr
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.word 0xE700 | (VX_R(v1) << 4) | r3
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.word (b2 << 12) | (\disp)
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MRXBOPC \m, 0x22, v1
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.endm
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.macro VLVGB v, gr, index, base
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VLVG \v, \gr, \index, \base, 0
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.endm
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.macro VLVGH v, gr, index
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VLVG \v, \gr, \index, 1
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.endm
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.macro VLVGF v, gr, index
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VLVG \v, \gr, \index, 2
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.endm
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.macro VLVGG v, gr, index
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VLVG \v, \gr, \index, 3
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.endm
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/* VECTOR LOAD */
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.macro VL v, disp, index="%r0", base
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VX_NUM v1, \v
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GR_NUM x2, \index
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GR_NUM b2, \base
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.word 0xE700 | (VX_R(v1) << 4) | x2
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.word (b2 << 12) | (\disp)
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MRXBOPC 0, 0x06, v1
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.endm
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/* VECTOR LOAD ELEMENT */
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.macro VLEx vr1, disp, index="%r0", base, m3, opc
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VX_NUM v1, \vr1
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GR_NUM x2, \index
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GR_NUM b2, \base
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.word 0xE700 | (VX_R(v1) << 4) | x2
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.word (b2 << 12) | (\disp)
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MRXBOPC \m3, \opc, v1
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.endm
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.macro VLEB vr1, disp, index="%r0", base, m3
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VLEx \vr1, \disp, \index, \base, \m3, 0x00
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.endm
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.macro VLEH vr1, disp, index="%r0", base, m3
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VLEx \vr1, \disp, \index, \base, \m3, 0x01
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.endm
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.macro VLEF vr1, disp, index="%r0", base, m3
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VLEx \vr1, \disp, \index, \base, \m3, 0x03
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.endm
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.macro VLEG vr1, disp, index="%r0", base, m3
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VLEx \vr1, \disp, \index, \base, \m3, 0x02
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.endm
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/* VECTOR LOAD ELEMENT IMMEDIATE */
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.macro VLEIx vr1, imm2, m3, opc
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VX_NUM v1, \vr1
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.word 0xE700 | (VX_R(v1) << 4)
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.word \imm2
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MRXBOPC \m3, \opc, v1
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.endm
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.macro VLEIB vr1, imm2, index
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VLEIx \vr1, \imm2, \index, 0x40
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.endm
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.macro VLEIH vr1, imm2, index
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VLEIx \vr1, \imm2, \index, 0x41
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.endm
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.macro VLEIF vr1, imm2, index
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VLEIx \vr1, \imm2, \index, 0x43
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.endm
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.macro VLEIG vr1, imm2, index
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VLEIx \vr1, \imm2, \index, 0x42
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.endm
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/* VECTOR LOAD GR FROM VR ELEMENT */
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.macro VLGV gr, vr, disp, base="%r0", m
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GR_NUM r1, \gr
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GR_NUM b2, \base
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VX_NUM v3, \vr
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.word 0xE700 | (r1 << 4) | VX_R(v3)
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.word (b2 << 12) | (\disp)
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MRXBOPC \m, 0x21, v3
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.endm
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.macro VLGVB gr, vr, disp, base="%r0"
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VLGV \gr, \vr, \disp, \base, 0
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.endm
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.macro VLGVH gr, vr, disp, base="%r0"
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VLGV \gr, \vr, \disp, \base, 1
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.endm
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.macro VLGVF gr, vr, disp, base="%r0"
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VLGV \gr, \vr, \disp, \base, 2
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.endm
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.macro VLGVG gr, vr, disp, base="%r0"
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VLGV \gr, \vr, \disp, \base, 3
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.endm
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/* VECTOR LOAD MULTIPLE */
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.macro VLM vfrom, vto, disp, base
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VX_NUM v1, \vfrom
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VX_NUM v3, \vto
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GR_NUM b2, \base /* Base register */
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.word 0xE700 | (VX_R(v1) << 4) | VX_R(v3)
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.word (b2 << 12) | (\disp)
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MRXBOPC 0, 0x36, v1, v3
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.endm
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/* VECTOR STORE MULTIPLE */
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.macro VSTM vfrom, vto, disp, base
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VX_NUM v1, \vfrom
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VX_NUM v3, \vto
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GR_NUM b2, \base /* Base register */
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.word 0xE700 | (VX_R(v1) << 4) | VX_R(v3)
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.word (b2 << 12) | (\disp)
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MRXBOPC 0, 0x3E, v1, v3
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.endm
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/* VECTOR PERMUTE */
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.macro VPERM vr1, vr2, vr3, vr4
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VX_NUM v1, \vr1
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VX_NUM v2, \vr2
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VX_NUM v3, \vr3
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VX_NUM v4, \vr4
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.word 0xE700 | (VX_R(v1) << 4) | VX_R(v2)
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.word (VX_R(v3) << 12)
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MRXBOPC VX_R(v4), 0x8C, v1, v2, v3, v4
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.endm
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/* VECTOR UNPACK LOGICAL LOW */
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.macro VUPLL vr1, vr2, m3
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VX_NUM v1, \vr1
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VX_NUM v2, \vr2
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.word 0xE700 | (VX_R(v1) << 4) | VX_R(v2)
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.word 0x0000
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MRXBOPC \m3, 0xD4, v1, v2
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.endm
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.macro VUPLLB vr1, vr2
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VUPLL \vr1, \vr2, 0
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.endm
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.macro VUPLLH vr1, vr2
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VUPLL \vr1, \vr2, 1
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.endm
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.macro VUPLLF vr1, vr2
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VUPLL \vr1, \vr2, 2
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.endm
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/* Vector integer instructions */
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/* VECTOR EXCLUSIVE OR */
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.macro VX vr1, vr2, vr3
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VX_NUM v1, \vr1
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VX_NUM v2, \vr2
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VX_NUM v3, \vr3
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.word 0xE700 | (VX_R(v1) << 4) | VX_R(v2)
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.word (VX_R(v3) << 12)
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MRXBOPC 0, 0x6D, v1, v2, v3
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.endm
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/* VECTOR GALOIS FIELD MULTIPLY SUM */
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.macro VGFM vr1, vr2, vr3, m4
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VX_NUM v1, \vr1
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VX_NUM v2, \vr2
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VX_NUM v3, \vr3
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.word 0xE700 | (VX_R(v1) << 4) | VX_R(v2)
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.word (VX_R(v3) << 12)
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MRXBOPC \m4, 0xB4, v1, v2, v3
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.endm
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.macro VGFMB vr1, vr2, vr3
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VGFM \vr1, \vr2, \vr3, 0
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.endm
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.macro VGFMH vr1, vr2, vr3
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VGFM \vr1, \vr2, \vr3, 1
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.endm
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.macro VGFMF vr1, vr2, vr3
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VGFM \vr1, \vr2, \vr3, 2
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.endm
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.macro VGFMG vr1, vr2, vr3
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VGFM \vr1, \vr2, \vr3, 3
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.endm
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/* VECTOR GALOIS FIELD MULTIPLY SUM AND ACCUMULATE */
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.macro VGFMA vr1, vr2, vr3, vr4, m5
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VX_NUM v1, \vr1
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VX_NUM v2, \vr2
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VX_NUM v3, \vr3
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VX_NUM v4, \vr4
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.word 0xE700 | (VX_R(v1) << 4) | VX_R(v2)
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.word (VX_R(v3) << 12) | (\m5 << 8)
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MRXBOPC VX_R(v4), 0xBC, v1, v2, v3, v4
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.endm
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.macro VGFMAB vr1, vr2, vr3, vr4
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VGFMA \vr1, \vr2, \vr3, \vr4, 0
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.endm
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.macro VGFMAH vr1, vr2, vr3, vr4
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VGFMA \vr1, \vr2, \vr3, \vr4, 1
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.endm
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.macro VGFMAF vr1, vr2, vr3, vr4
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VGFMA \vr1, \vr2, \vr3, \vr4, 2
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.endm
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.macro VGFMAG vr1, vr2, vr3, vr4
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VGFMA \vr1, \vr2, \vr3, \vr4, 3
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.endm
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/* VECTOR SHIFT RIGHT LOGICAL BY BYTE */
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.macro VSRLB vr1, vr2, vr3
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VX_NUM v1, \vr1
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VX_NUM v2, \vr2
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VX_NUM v3, \vr3
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.word 0xE700 | (VX_R(v1) << 4) | VX_R(v2)
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.word (VX_R(v3) << 12)
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MRXBOPC 0, 0x7D, v1, v2, v3
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.endm
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#endif /* __ASSEMBLY__ */
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#endif /* __ASM_S390_VX_INSN_H */
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