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FFmpeg/libavcodec/sparc/vis.h

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/*
* Copyright (C) 2003 David S. Miller <davem@redhat.com>
*
* This file is part of Libav.
*
* Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/* You may be asking why I hard-code the instruction opcodes and don't
* use the normal VIS assembler mnenomics for the VIS instructions.
*
* The reason is that Sun, in their infinite wisdom, decided that a binary
* using a VIS instruction will cause it to be marked (in the ELF headers)
* as doing so, and this prevents the OS from loading such binaries if the
* current cpu doesn't have VIS. There is no way to easily override this
* behavior of the assembler that I am aware of.
*
* This totally defeats what libmpeg2 is trying to do which is allow a
* single binary to be created, and then detect the availability of VIS
* at runtime.
*
* I'm not saying that tainting the binary by default is bad, rather I'm
* saying that not providing a way to override this easily unnecessarily
* ties people's hands.
*
* Thus, we do the opcode encoding by hand and output 32-bit words in
* the assembler to keep the binary from becoming tainted.
*/
#ifndef AVCODEC_SPARC_VIS_H
#define AVCODEC_SPARC_VIS_H
#define ACCEL_SPARC_VIS 1
#define ACCEL_SPARC_VIS2 2
static inline int vis_level(void)
{
int accel = 0;
accel |= ACCEL_SPARC_VIS;
accel |= ACCEL_SPARC_VIS2;
return accel;
}
#define vis_opc_base ((0x1 << 31) | (0x36 << 19))
#define vis_opf(X) ((X) << 5)
#define vis_sreg(X) (X)
#define vis_dreg(X) (((X)&0x1f)|((X)>>5))
#define vis_rs1_s(X) (vis_sreg(X) << 14)
#define vis_rs1_d(X) (vis_dreg(X) << 14)
#define vis_rs2_s(X) (vis_sreg(X) << 0)
#define vis_rs2_d(X) (vis_dreg(X) << 0)
#define vis_rd_s(X) (vis_sreg(X) << 25)
#define vis_rd_d(X) (vis_dreg(X) << 25)
#define vis_ss2s(opf,rs1,rs2,rd) \
__asm__ volatile (".word %0" \
: : "i" (vis_opc_base | vis_opf(opf) | \
vis_rs1_s(rs1) | \
vis_rs2_s(rs2) | \
vis_rd_s(rd)))
#define vis_dd2d(opf,rs1,rs2,rd) \
__asm__ volatile (".word %0" \
: : "i" (vis_opc_base | vis_opf(opf) | \
vis_rs1_d(rs1) | \
vis_rs2_d(rs2) | \
vis_rd_d(rd)))
#define vis_ss2d(opf,rs1,rs2,rd) \
__asm__ volatile (".word %0" \
: : "i" (vis_opc_base | vis_opf(opf) | \
vis_rs1_s(rs1) | \
vis_rs2_s(rs2) | \
vis_rd_d(rd)))
#define vis_sd2d(opf,rs1,rs2,rd) \
__asm__ volatile (".word %0" \
: : "i" (vis_opc_base | vis_opf(opf) | \
vis_rs1_s(rs1) | \
vis_rs2_d(rs2) | \
vis_rd_d(rd)))
#define vis_d2s(opf,rs2,rd) \
__asm__ volatile (".word %0" \
: : "i" (vis_opc_base | vis_opf(opf) | \
vis_rs2_d(rs2) | \
vis_rd_s(rd)))
#define vis_s2d(opf,rs2,rd) \
__asm__ volatile (".word %0" \
: : "i" (vis_opc_base | vis_opf(opf) | \
vis_rs2_s(rs2) | \
vis_rd_d(rd)))
#define vis_d12d(opf,rs1,rd) \
__asm__ volatile (".word %0" \
: : "i" (vis_opc_base | vis_opf(opf) | \
vis_rs1_d(rs1) | \
vis_rd_d(rd)))
#define vis_d22d(opf,rs2,rd) \
__asm__ volatile (".word %0" \
: : "i" (vis_opc_base | vis_opf(opf) | \
vis_rs2_d(rs2) | \
vis_rd_d(rd)))
#define vis_s12s(opf,rs1,rd) \
__asm__ volatile (".word %0" \
: : "i" (vis_opc_base | vis_opf(opf) | \
vis_rs1_s(rs1) | \
vis_rd_s(rd)))
#define vis_s22s(opf,rs2,rd) \
__asm__ volatile (".word %0" \
: : "i" (vis_opc_base | vis_opf(opf) | \
vis_rs2_s(rs2) | \
vis_rd_s(rd)))
#define vis_s(opf,rd) \
__asm__ volatile (".word %0" \
: : "i" (vis_opc_base | vis_opf(opf) | \
vis_rd_s(rd)))
#define vis_d(opf,rd) \
__asm__ volatile (".word %0" \
: : "i" (vis_opc_base | vis_opf(opf) | \
vis_rd_d(rd)))
#define vis_r2m(op,rd,mem) \
__asm__ volatile (#op "\t%%f" #rd ", [%0]" : : "r" (&(mem)) )
#define vis_r2m_2(op,rd,mem1,mem2) \
__asm__ volatile (#op "\t%%f" #rd ", [%0 + %1]" : : "r" (mem1), "r" (mem2) )
#define vis_m2r(op,mem,rd) \
__asm__ volatile (#op "\t[%0], %%f" #rd : : "r" (&(mem)) )
#define vis_m2r_2(op,mem1,mem2,rd) \
__asm__ volatile (#op "\t[%0 + %1], %%f" #rd : : "r" (mem1), "r" (mem2) )
static inline void vis_set_gsr(unsigned int val)
{
__asm__ volatile("mov %0,%%asr19"
: : "r" (val));
}
#define VIS_GSR_ALIGNADDR_MASK 0x0000007
#define VIS_GSR_ALIGNADDR_SHIFT 0
#define VIS_GSR_SCALEFACT_MASK 0x0000078
#define VIS_GSR_SCALEFACT_SHIFT 3
#define vis_ld32(mem,rs1) vis_m2r(ld, mem, rs1)
#define vis_ld32_2(mem1,mem2,rs1) vis_m2r_2(ld, mem1, mem2, rs1)
#define vis_st32(rs1,mem) vis_r2m(st, rs1, mem)
#define vis_st32_2(rs1,mem1,mem2) vis_r2m_2(st, rs1, mem1, mem2)
#define vis_ld64(mem,rs1) vis_m2r(ldd, mem, rs1)
#define vis_ld64_2(mem1,mem2,rs1) vis_m2r_2(ldd, mem1, mem2, rs1)
#define vis_st64(rs1,mem) vis_r2m(std, rs1, mem)
#define vis_st64_2(rs1,mem1,mem2) vis_r2m_2(std, rs1, mem1, mem2)
/* 16 and 32 bit partitioned addition and subtraction. The normal
* versions perform 4 16-bit or 2 32-bit additions or subtractions.
* The 's' versions perform 2 16-bit or 1 32-bit additions or
* subtractions.
*/
#define vis_padd16(rs1,rs2,rd) vis_dd2d(0x50, rs1, rs2, rd)
#define vis_padd16s(rs1,rs2,rd) vis_ss2s(0x51, rs1, rs2, rd)
#define vis_padd32(rs1,rs2,rd) vis_dd2d(0x52, rs1, rs2, rd)
#define vis_padd32s(rs1,rs2,rd) vis_ss2s(0x53, rs1, rs2, rd)
#define vis_psub16(rs1,rs2,rd) vis_dd2d(0x54, rs1, rs2, rd)
#define vis_psub16s(rs1,rs2,rd) vis_ss2s(0x55, rs1, rs2, rd)
#define vis_psub32(rs1,rs2,rd) vis_dd2d(0x56, rs1, rs2, rd)
#define vis_psub32s(rs1,rs2,rd) vis_ss2s(0x57, rs1, rs2, rd)
/* Pixel formatting instructions. */
#define vis_pack16(rs2,rd) vis_d2s( 0x3b, rs2, rd)
#define vis_pack32(rs1,rs2,rd) vis_dd2d(0x3a, rs1, rs2, rd)
#define vis_packfix(rs2,rd) vis_d2s( 0x3d, rs2, rd)
#define vis_expand(rs2,rd) vis_s2d( 0x4d, rs2, rd)
#define vis_pmerge(rs1,rs2,rd) vis_ss2d(0x4b, rs1, rs2, rd)
/* Partitioned multiply instructions. */
#define vis_mul8x16(rs1,rs2,rd) vis_sd2d(0x31, rs1, rs2, rd)
#define vis_mul8x16au(rs1,rs2,rd) vis_ss2d(0x33, rs1, rs2, rd)
#define vis_mul8x16al(rs1,rs2,rd) vis_ss2d(0x35, rs1, rs2, rd)
#define vis_mul8sux16(rs1,rs2,rd) vis_dd2d(0x36, rs1, rs2, rd)
#define vis_mul8ulx16(rs1,rs2,rd) vis_dd2d(0x37, rs1, rs2, rd)
#define vis_muld8sux16(rs1,rs2,rd) vis_ss2d(0x38, rs1, rs2, rd)
#define vis_muld8ulx16(rs1,rs2,rd) vis_ss2d(0x39, rs1, rs2, rd)
/* Alignment instructions. */
static inline const void *vis_alignaddr(const void *ptr)
{
__asm__ volatile("alignaddr %0, %%g0, %0"
: "=&r" (ptr)
: "0" (ptr));
return ptr;
}
static inline void vis_alignaddr_g0(void *ptr)
{
__asm__ volatile("alignaddr %0, %%g0, %%g0"
: : "r" (ptr));
}
#define vis_faligndata(rs1,rs2,rd) vis_dd2d(0x48, rs1, rs2, rd)
/* Logical operate instructions. */
#define vis_fzero(rd) vis_d( 0x60, rd)
#define vis_fzeros(rd) vis_s( 0x61, rd)
#define vis_fone(rd) vis_d( 0x7e, rd)
#define vis_fones(rd) vis_s( 0x7f, rd)
#define vis_src1(rs1,rd) vis_d12d(0x74, rs1, rd)
#define vis_src1s(rs1,rd) vis_s12s(0x75, rs1, rd)
#define vis_src2(rs2,rd) vis_d22d(0x78, rs2, rd)
#define vis_src2s(rs2,rd) vis_s22s(0x79, rs2, rd)
#define vis_not1(rs1,rd) vis_d12d(0x6a, rs1, rd)
#define vis_not1s(rs1,rd) vis_s12s(0x6b, rs1, rd)
#define vis_not2(rs2,rd) vis_d22d(0x66, rs2, rd)
#define vis_not2s(rs2,rd) vis_s22s(0x67, rs2, rd)
#define vis_or(rs1,rs2,rd) vis_dd2d(0x7c, rs1, rs2, rd)
#define vis_ors(rs1,rs2,rd) vis_ss2s(0x7d, rs1, rs2, rd)
#define vis_nor(rs1,rs2,rd) vis_dd2d(0x62, rs1, rs2, rd)
#define vis_nors(rs1,rs2,rd) vis_ss2s(0x63, rs1, rs2, rd)
#define vis_and(rs1,rs2,rd) vis_dd2d(0x70, rs1, rs2, rd)
#define vis_ands(rs1,rs2,rd) vis_ss2s(0x71, rs1, rs2, rd)
#define vis_nand(rs1,rs2,rd) vis_dd2d(0x6e, rs1, rs2, rd)
#define vis_nands(rs1,rs2,rd) vis_ss2s(0x6f, rs1, rs2, rd)
#define vis_xor(rs1,rs2,rd) vis_dd2d(0x6c, rs1, rs2, rd)
#define vis_xors(rs1,rs2,rd) vis_ss2s(0x6d, rs1, rs2, rd)
#define vis_xnor(rs1,rs2,rd) vis_dd2d(0x72, rs1, rs2, rd)
#define vis_xnors(rs1,rs2,rd) vis_ss2s(0x73, rs1, rs2, rd)
#define vis_ornot1(rs1,rs2,rd) vis_dd2d(0x7a, rs1, rs2, rd)
#define vis_ornot1s(rs1,rs2,rd) vis_ss2s(0x7b, rs1, rs2, rd)
#define vis_ornot2(rs1,rs2,rd) vis_dd2d(0x76, rs1, rs2, rd)
#define vis_ornot2s(rs1,rs2,rd) vis_ss2s(0x77, rs1, rs2, rd)
#define vis_andnot1(rs1,rs2,rd) vis_dd2d(0x68, rs1, rs2, rd)
#define vis_andnot1s(rs1,rs2,rd) vis_ss2s(0x69, rs1, rs2, rd)
#define vis_andnot2(rs1,rs2,rd) vis_dd2d(0x64, rs1, rs2, rd)
#define vis_andnot2s(rs1,rs2,rd) vis_ss2s(0x65, rs1, rs2, rd)
/* Pixel component distance. */
#define vis_pdist(rs1,rs2,rd) vis_dd2d(0x3e, rs1, rs2, rd)
#endif /* AVCODEC_SPARC_VIS_H */