2 * Copyright (C) 2003 David S. Miller <davem@redhat.com>
4 * This file is part of Libav.
6 * Libav is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * Libav is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with Libav; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 /* You may be asking why I hard-code the instruction opcodes and don't
22 * use the normal VIS assembler mnenomics for the VIS instructions.
24 * The reason is that Sun, in their infinite wisdom, decided that a binary
25 * using a VIS instruction will cause it to be marked (in the ELF headers)
26 * as doing so, and this prevents the OS from loading such binaries if the
27 * current cpu doesn't have VIS. There is no way to easily override this
28 * behavior of the assembler that I am aware of.
30 * This totally defeats what libmpeg2 is trying to do which is allow a
31 * single binary to be created, and then detect the availability of VIS
34 * I'm not saying that tainting the binary by default is bad, rather I'm
35 * saying that not providing a way to override this easily unnecessarily
36 * ties people's hands.
38 * Thus, we do the opcode encoding by hand and output 32-bit words in
39 * the assembler to keep the binary from becoming tainted.
42 #ifndef AVCODEC_SPARC_VIS_H
43 #define AVCODEC_SPARC_VIS_H
45 #define vis_opc_base ((0x1 << 31) | (0x36 << 19))
46 #define vis_opf(X) ((X) << 5)
47 #define vis_sreg(X) (X)
48 #define vis_dreg(X) (((X)&0x1f)|((X)>>5))
49 #define vis_rs1_s(X) (vis_sreg(X) << 14)
50 #define vis_rs1_d(X) (vis_dreg(X) << 14)
51 #define vis_rs2_s(X) (vis_sreg(X) << 0)
52 #define vis_rs2_d(X) (vis_dreg(X) << 0)
53 #define vis_rd_s(X) (vis_sreg(X) << 25)
54 #define vis_rd_d(X) (vis_dreg(X) << 25)
56 #define vis_ss2s(opf,rs1,rs2,rd) \
57 __asm__ volatile (".word %0" \
58 : : "i" (vis_opc_base | vis_opf(opf) | \
63 #define vis_dd2d(opf,rs1,rs2,rd) \
64 __asm__ volatile (".word %0" \
65 : : "i" (vis_opc_base | vis_opf(opf) | \
70 #define vis_ss2d(opf,rs1,rs2,rd) \
71 __asm__ volatile (".word %0" \
72 : : "i" (vis_opc_base | vis_opf(opf) | \
77 #define vis_sd2d(opf,rs1,rs2,rd) \
78 __asm__ volatile (".word %0" \
79 : : "i" (vis_opc_base | vis_opf(opf) | \
84 #define vis_d2s(opf,rs2,rd) \
85 __asm__ volatile (".word %0" \
86 : : "i" (vis_opc_base | vis_opf(opf) | \
90 #define vis_s2d(opf,rs2,rd) \
91 __asm__ volatile (".word %0" \
92 : : "i" (vis_opc_base | vis_opf(opf) | \
96 #define vis_d12d(opf,rs1,rd) \
97 __asm__ volatile (".word %0" \
98 : : "i" (vis_opc_base | vis_opf(opf) | \
102 #define vis_d22d(opf,rs2,rd) \
103 __asm__ volatile (".word %0" \
104 : : "i" (vis_opc_base | vis_opf(opf) | \
108 #define vis_s12s(opf,rs1,rd) \
109 __asm__ volatile (".word %0" \
110 : : "i" (vis_opc_base | vis_opf(opf) | \
114 #define vis_s22s(opf,rs2,rd) \
115 __asm__ volatile (".word %0" \
116 : : "i" (vis_opc_base | vis_opf(opf) | \
120 #define vis_s(opf,rd) \
121 __asm__ volatile (".word %0" \
122 : : "i" (vis_opc_base | vis_opf(opf) | \
125 #define vis_d(opf,rd) \
126 __asm__ volatile (".word %0" \
127 : : "i" (vis_opc_base | vis_opf(opf) | \
130 #define vis_r2m(op,rd,mem) \
131 __asm__ volatile (#op "\t%%f" #rd ", [%0]" : : "r" (&(mem)) )
133 #define vis_r2m_2(op,rd,mem1,mem2) \
134 __asm__ volatile (#op "\t%%f" #rd ", [%0 + %1]" : : "r" (mem1), "r" (mem2) )
136 #define vis_m2r(op,mem,rd) \
137 __asm__ volatile (#op "\t[%0], %%f" #rd : : "r" (&(mem)) )
139 #define vis_m2r_2(op,mem1,mem2,rd) \
140 __asm__ volatile (#op "\t[%0 + %1], %%f" #rd : : "r" (mem1), "r" (mem2) )
142 static inline void vis_set_gsr(unsigned int _val)
144 register unsigned int val __asm__("g1");
147 __asm__ volatile(".word 0xa7804000"
151 #define VIS_GSR_ALIGNADDR_MASK 0x0000007
152 #define VIS_GSR_ALIGNADDR_SHIFT 0
153 #define VIS_GSR_SCALEFACT_MASK 0x0000078
154 #define VIS_GSR_SCALEFACT_SHIFT 3
156 #define vis_ld32(mem,rs1) vis_m2r(ld, mem, rs1)
157 #define vis_ld32_2(mem1,mem2,rs1) vis_m2r_2(ld, mem1, mem2, rs1)
158 #define vis_st32(rs1,mem) vis_r2m(st, rs1, mem)
159 #define vis_st32_2(rs1,mem1,mem2) vis_r2m_2(st, rs1, mem1, mem2)
160 #define vis_ld64(mem,rs1) vis_m2r(ldd, mem, rs1)
161 #define vis_ld64_2(mem1,mem2,rs1) vis_m2r_2(ldd, mem1, mem2, rs1)
162 #define vis_st64(rs1,mem) vis_r2m(std, rs1, mem)
163 #define vis_st64_2(rs1,mem1,mem2) vis_r2m_2(std, rs1, mem1, mem2)
165 #define vis_ldblk(mem, rd) \
166 do { register void *__mem __asm__("g1"); \
168 __asm__ volatile(".word 0xc1985e00 | %1" \
175 #define vis_stblk(rd, mem) \
176 do { register void *__mem __asm__("g1"); \
178 __asm__ volatile(".word 0xc1b85e00 | %1" \
185 #define vis_membar_storestore() \
186 __asm__ volatile(".word 0x8143e008" : : : "memory")
188 #define vis_membar_sync() \
189 __asm__ volatile(".word 0x8143e040" : : : "memory")
191 /* 16 and 32 bit partitioned addition and subtraction. The normal
192 * versions perform 4 16-bit or 2 32-bit additions or subtractions.
193 * The 's' versions perform 2 16-bit or 1 32-bit additions or
197 #define vis_padd16(rs1,rs2,rd) vis_dd2d(0x50, rs1, rs2, rd)
198 #define vis_padd16s(rs1,rs2,rd) vis_ss2s(0x51, rs1, rs2, rd)
199 #define vis_padd32(rs1,rs2,rd) vis_dd2d(0x52, rs1, rs2, rd)
200 #define vis_padd32s(rs1,rs2,rd) vis_ss2s(0x53, rs1, rs2, rd)
201 #define vis_psub16(rs1,rs2,rd) vis_dd2d(0x54, rs1, rs2, rd)
202 #define vis_psub16s(rs1,rs2,rd) vis_ss2s(0x55, rs1, rs2, rd)
203 #define vis_psub32(rs1,rs2,rd) vis_dd2d(0x56, rs1, rs2, rd)
204 #define vis_psub32s(rs1,rs2,rd) vis_ss2s(0x57, rs1, rs2, rd)
206 /* Pixel formatting instructions. */
208 #define vis_pack16(rs2,rd) vis_d2s( 0x3b, rs2, rd)
209 #define vis_pack32(rs1,rs2,rd) vis_dd2d(0x3a, rs1, rs2, rd)
210 #define vis_packfix(rs2,rd) vis_d2s( 0x3d, rs2, rd)
211 #define vis_expand(rs2,rd) vis_s2d( 0x4d, rs2, rd)
212 #define vis_pmerge(rs1,rs2,rd) vis_ss2d(0x4b, rs1, rs2, rd)
214 /* Partitioned multiply instructions. */
216 #define vis_mul8x16(rs1,rs2,rd) vis_sd2d(0x31, rs1, rs2, rd)
217 #define vis_mul8x16au(rs1,rs2,rd) vis_ss2d(0x33, rs1, rs2, rd)
218 #define vis_mul8x16al(rs1,rs2,rd) vis_ss2d(0x35, rs1, rs2, rd)
219 #define vis_mul8sux16(rs1,rs2,rd) vis_dd2d(0x36, rs1, rs2, rd)
220 #define vis_mul8ulx16(rs1,rs2,rd) vis_dd2d(0x37, rs1, rs2, rd)
221 #define vis_muld8sux16(rs1,rs2,rd) vis_ss2d(0x38, rs1, rs2, rd)
222 #define vis_muld8ulx16(rs1,rs2,rd) vis_ss2d(0x39, rs1, rs2, rd)
224 /* Alignment instructions. */
226 static inline const void *vis_alignaddr(const void *_ptr)
228 register const void *ptr __asm__("g1");
232 __asm__ volatile(".word %2"
235 "i" (vis_opc_base | vis_opf(0x18) |
243 static inline void vis_alignaddr_g0(void *_ptr)
245 register void *ptr __asm__("g1");
249 __asm__ volatile(".word %2"
252 "i" (vis_opc_base | vis_opf(0x18) |
258 static inline void *vis_alignaddrl(void *_ptr)
260 register void *ptr __asm__("g1");
264 __asm__ volatile(".word %2"
267 "i" (vis_opc_base | vis_opf(0x19) |
275 static inline void vis_alignaddrl_g0(void *_ptr)
277 register void *ptr __asm__("g1");
281 __asm__ volatile(".word %2"
284 "i" (vis_opc_base | vis_opf(0x19) |
290 #define vis_faligndata(rs1,rs2,rd) vis_dd2d(0x48, rs1, rs2, rd)
292 /* Logical operate instructions. */
294 #define vis_fzero(rd) vis_d( 0x60, rd)
295 #define vis_fzeros(rd) vis_s( 0x61, rd)
296 #define vis_fone(rd) vis_d( 0x7e, rd)
297 #define vis_fones(rd) vis_s( 0x7f, rd)
298 #define vis_src1(rs1,rd) vis_d12d(0x74, rs1, rd)
299 #define vis_src1s(rs1,rd) vis_s12s(0x75, rs1, rd)
300 #define vis_src2(rs2,rd) vis_d22d(0x78, rs2, rd)
301 #define vis_src2s(rs2,rd) vis_s22s(0x79, rs2, rd)
302 #define vis_not1(rs1,rd) vis_d12d(0x6a, rs1, rd)
303 #define vis_not1s(rs1,rd) vis_s12s(0x6b, rs1, rd)
304 #define vis_not2(rs2,rd) vis_d22d(0x66, rs2, rd)
305 #define vis_not2s(rs2,rd) vis_s22s(0x67, rs2, rd)
306 #define vis_or(rs1,rs2,rd) vis_dd2d(0x7c, rs1, rs2, rd)
307 #define vis_ors(rs1,rs2,rd) vis_ss2s(0x7d, rs1, rs2, rd)
308 #define vis_nor(rs1,rs2,rd) vis_dd2d(0x62, rs1, rs2, rd)
309 #define vis_nors(rs1,rs2,rd) vis_ss2s(0x63, rs1, rs2, rd)
310 #define vis_and(rs1,rs2,rd) vis_dd2d(0x70, rs1, rs2, rd)
311 #define vis_ands(rs1,rs2,rd) vis_ss2s(0x71, rs1, rs2, rd)
312 #define vis_nand(rs1,rs2,rd) vis_dd2d(0x6e, rs1, rs2, rd)
313 #define vis_nands(rs1,rs2,rd) vis_ss2s(0x6f, rs1, rs2, rd)
314 #define vis_xor(rs1,rs2,rd) vis_dd2d(0x6c, rs1, rs2, rd)
315 #define vis_xors(rs1,rs2,rd) vis_ss2s(0x6d, rs1, rs2, rd)
316 #define vis_xnor(rs1,rs2,rd) vis_dd2d(0x72, rs1, rs2, rd)
317 #define vis_xnors(rs1,rs2,rd) vis_ss2s(0x73, rs1, rs2, rd)
318 #define vis_ornot1(rs1,rs2,rd) vis_dd2d(0x7a, rs1, rs2, rd)
319 #define vis_ornot1s(rs1,rs2,rd) vis_ss2s(0x7b, rs1, rs2, rd)
320 #define vis_ornot2(rs1,rs2,rd) vis_dd2d(0x76, rs1, rs2, rd)
321 #define vis_ornot2s(rs1,rs2,rd) vis_ss2s(0x77, rs1, rs2, rd)
322 #define vis_andnot1(rs1,rs2,rd) vis_dd2d(0x68, rs1, rs2, rd)
323 #define vis_andnot1s(rs1,rs2,rd) vis_ss2s(0x69, rs1, rs2, rd)
324 #define vis_andnot2(rs1,rs2,rd) vis_dd2d(0x64, rs1, rs2, rd)
325 #define vis_andnot2s(rs1,rs2,rd) vis_ss2s(0x65, rs1, rs2, rd)
327 /* Pixel component distance. */
329 #define vis_pdist(rs1,rs2,rd) vis_dd2d(0x3e, rs1, rs2, rd)
331 #endif /* AVCODEC_SPARC_VIS_H */