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r600g: fix udiv/idiv/umod/imod on cayman
Cayman needs some of the MUL instructions spread across a full slot of vectors. It also no longer has RECIP_UINT, the recommendation is to replace it with a U2F + RECIP_IEEE + MUL + F2U. Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie
parent
a33937d043
commit
29cf90b414
1 changed files with 281 additions and 92 deletions
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@ -2108,12 +2108,12 @@ static int tgsi_divmod(struct r600_shader_ctx *ctx, int mod, int signed_op)
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{
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struct tgsi_full_instruction *inst = &ctx->parse.FullToken.FullInstruction;
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struct r600_bytecode_alu alu;
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int i, r;
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int i, r, j;
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unsigned write_mask = inst->Dst[0].Register.WriteMask;
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int tmp0 = ctx->temp_reg;
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int tmp1 = r600_get_temp(ctx);
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int tmp2 = r600_get_temp(ctx);
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int tmp3 = r600_get_temp(ctx);
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/* Unsigned path:
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*
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* we need to represent src1 as src2*q + r, where q - quotient, r - remainder
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@ -2256,44 +2256,138 @@ static int tgsi_divmod(struct r600_shader_ctx *ctx, int mod, int signed_op)
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}
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/* 1. tmp0.x = rcp_u (src2) = 2^32/src2 + e, where e is rounding error */
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memset(&alu, 0, sizeof(struct r600_bytecode_alu));
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alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_RECIP_UINT);
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if (ctx->bc->chip_class == CAYMAN) {
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/* tmp3.x = u2f(src2) */
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memset(&alu, 0, sizeof(struct r600_bytecode_alu));
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alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_UINT_TO_FLT);
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alu.dst.sel = tmp0;
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alu.dst.chan = 0;
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alu.dst.write = 1;
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alu.dst.sel = tmp3;
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alu.dst.chan = 0;
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alu.dst.write = 1;
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if (signed_op) {
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alu.src[0].sel = tmp2;
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alu.src[0].chan = 1;
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} else {
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r600_bytecode_src(&alu.src[0], &ctx->src[1], i);
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}
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alu.last = 1;
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if ((r = r600_bytecode_add_alu(ctx->bc, &alu)))
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return r;
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/* tmp0.x = recip(tmp3.x) */
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for (j = 0 ; j < 3; j++) {
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memset(&alu, 0, sizeof(struct r600_bytecode_alu));
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alu.inst = EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_RECIP_IEEE;
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alu.dst.sel = tmp0;
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alu.dst.chan = j;
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alu.dst.write = (j == 0);
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alu.src[0].sel = tmp3;
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alu.src[0].chan = 0;
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if (j == 2)
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alu.last = 1;
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if ((r = r600_bytecode_add_alu(ctx->bc, &alu)))
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return r;
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}
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memset(&alu, 0, sizeof(struct r600_bytecode_alu));
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alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_MUL);
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alu.src[0].sel = tmp0;
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alu.src[0].chan = 0;
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alu.src[1].sel = V_SQ_ALU_SRC_LITERAL;
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alu.src[1].value = 0x4f800000;
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alu.dst.sel = tmp3;
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alu.dst.write = 1;
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alu.last = 1;
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r = r600_bytecode_add_alu(ctx->bc, &alu);
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if (r)
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return r;
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memset(&alu, 0, sizeof(struct r600_bytecode_alu));
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alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_FLT_TO_UINT);
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alu.dst.sel = tmp0;
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alu.dst.chan = 0;
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alu.dst.write = 1;
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alu.src[0].sel = tmp3;
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alu.src[0].chan = 0;
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alu.last = 1;
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if ((r = r600_bytecode_add_alu(ctx->bc, &alu)))
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return r;
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if (signed_op) {
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alu.src[0].sel = tmp2;
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alu.src[0].chan = 1;
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} else {
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r600_bytecode_src(&alu.src[0], &ctx->src[1], i);
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}
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memset(&alu, 0, sizeof(struct r600_bytecode_alu));
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alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_RECIP_UINT);
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alu.last = 1;
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if ((r = r600_bytecode_add_alu(ctx->bc, &alu)))
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return r;
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alu.dst.sel = tmp0;
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alu.dst.chan = 0;
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alu.dst.write = 1;
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if (signed_op) {
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alu.src[0].sel = tmp2;
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alu.src[0].chan = 1;
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} else {
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r600_bytecode_src(&alu.src[0], &ctx->src[1], i);
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}
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alu.last = 1;
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if ((r = r600_bytecode_add_alu(ctx->bc, &alu)))
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return r;
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}
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/* 2. tmp0.z = lo (tmp0.x * src2) */
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memset(&alu, 0, sizeof(struct r600_bytecode_alu));
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alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_MULLO_UINT);
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if (ctx->bc->chip_class == CAYMAN) {
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for (j = 0 ; j < 4; j++) {
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memset(&alu, 0, sizeof(struct r600_bytecode_alu));
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alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_MULLO_UINT);
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alu.dst.sel = tmp0;
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alu.dst.chan = 2;
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alu.dst.write = 1;
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alu.dst.sel = tmp0;
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alu.dst.chan = j;
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alu.dst.write = (j == 2);
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alu.src[0].sel = tmp0;
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alu.src[0].chan = 0;
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if (signed_op) {
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alu.src[1].sel = tmp2;
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alu.src[1].chan = 1;
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alu.src[0].sel = tmp0;
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alu.src[0].chan = 0;
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if (signed_op) {
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alu.src[1].sel = tmp2;
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alu.src[1].chan = 1;
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} else {
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r600_bytecode_src(&alu.src[1], &ctx->src[1], i);
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}
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alu.last = (j == 3);
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if ((r = r600_bytecode_add_alu(ctx->bc, &alu)))
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return r;
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}
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} else {
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r600_bytecode_src(&alu.src[1], &ctx->src[1], i);
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}
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memset(&alu, 0, sizeof(struct r600_bytecode_alu));
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alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_MULLO_UINT);
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alu.last = 1;
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if ((r = r600_bytecode_add_alu(ctx->bc, &alu)))
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return r;
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alu.dst.sel = tmp0;
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alu.dst.chan = 2;
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alu.dst.write = 1;
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alu.src[0].sel = tmp0;
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alu.src[0].chan = 0;
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if (signed_op) {
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alu.src[1].sel = tmp2;
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alu.src[1].chan = 1;
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} else {
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r600_bytecode_src(&alu.src[1], &ctx->src[1], i);
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}
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alu.last = 1;
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if ((r = r600_bytecode_add_alu(ctx->bc, &alu)))
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return r;
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}
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/* 3. tmp0.w = -tmp0.z */
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memset(&alu, 0, sizeof(struct r600_bytecode_alu));
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@ -2312,26 +2406,50 @@ static int tgsi_divmod(struct r600_shader_ctx *ctx, int mod, int signed_op)
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return r;
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/* 4. tmp0.y = hi (tmp0.x * src2) */
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memset(&alu, 0, sizeof(struct r600_bytecode_alu));
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alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_MULHI_UINT);
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if (ctx->bc->chip_class == CAYMAN) {
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for (j = 0 ; j < 4; j++) {
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memset(&alu, 0, sizeof(struct r600_bytecode_alu));
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alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_MULHI_UINT);
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alu.dst.sel = tmp0;
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alu.dst.chan = 1;
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alu.dst.write = 1;
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alu.dst.sel = tmp0;
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alu.dst.chan = j;
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alu.dst.write = (j == 1);
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alu.src[0].sel = tmp0;
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alu.src[0].chan = 0;
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alu.src[0].sel = tmp0;
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alu.src[0].chan = 0;
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if (signed_op) {
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alu.src[1].sel = tmp2;
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alu.src[1].chan = 1;
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if (signed_op) {
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alu.src[1].sel = tmp2;
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alu.src[1].chan = 1;
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} else {
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r600_bytecode_src(&alu.src[1], &ctx->src[1], i);
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}
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alu.last = (j == 3);
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if ((r = r600_bytecode_add_alu(ctx->bc, &alu)))
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return r;
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}
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} else {
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r600_bytecode_src(&alu.src[1], &ctx->src[1], i);
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}
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memset(&alu, 0, sizeof(struct r600_bytecode_alu));
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alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_MULHI_UINT);
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alu.last = 1;
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if ((r = r600_bytecode_add_alu(ctx->bc, &alu)))
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return r;
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alu.dst.sel = tmp0;
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alu.dst.chan = 1;
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alu.dst.write = 1;
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alu.src[0].sel = tmp0;
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alu.src[0].chan = 0;
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if (signed_op) {
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alu.src[1].sel = tmp2;
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alu.src[1].chan = 1;
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} else {
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r600_bytecode_src(&alu.src[1], &ctx->src[1], i);
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}
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alu.last = 1;
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if ((r = r600_bytecode_add_alu(ctx->bc, &alu)))
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return r;
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}
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/* 5. tmp0.z = (tmp0.y == 0 ? tmp0.w : tmp0.z) = abs(lo(rcp*src)) */
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memset(&alu, 0, sizeof(struct r600_bytecode_alu));
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@ -2354,22 +2472,43 @@ static int tgsi_divmod(struct r600_shader_ctx *ctx, int mod, int signed_op)
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return r;
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/* 6. tmp0.w = hi (tmp0.z * tmp0.x) = e, rounding error */
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memset(&alu, 0, sizeof(struct r600_bytecode_alu));
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alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_MULHI_UINT);
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if (ctx->bc->chip_class == CAYMAN) {
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for (j = 0 ; j < 4; j++) {
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memset(&alu, 0, sizeof(struct r600_bytecode_alu));
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alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_MULHI_UINT);
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alu.dst.sel = tmp0;
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alu.dst.chan = 3;
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alu.dst.write = 1;
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alu.dst.sel = tmp0;
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alu.dst.chan = j;
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alu.dst.write = (j == 3);
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alu.src[0].sel = tmp0;
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alu.src[0].chan = 2;
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alu.src[0].sel = tmp0;
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alu.src[0].chan = 2;
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alu.src[1].sel = tmp0;
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alu.src[1].chan = 0;
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alu.src[1].sel = tmp0;
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alu.src[1].chan = 0;
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alu.last = 1;
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if ((r = r600_bytecode_add_alu(ctx->bc, &alu)))
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return r;
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alu.last = (j == 3);
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if ((r = r600_bytecode_add_alu(ctx->bc, &alu)))
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return r;
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}
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} else {
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memset(&alu, 0, sizeof(struct r600_bytecode_alu));
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alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_MULHI_UINT);
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alu.dst.sel = tmp0;
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alu.dst.chan = 3;
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alu.dst.write = 1;
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alu.src[0].sel = tmp0;
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alu.src[0].chan = 2;
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alu.src[1].sel = tmp0;
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alu.src[1].chan = 0;
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alu.last = 1;
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if ((r = r600_bytecode_add_alu(ctx->bc, &alu)))
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return r;
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}
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/* 7. tmp1.x = tmp0.x - tmp0.w */
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memset(&alu, 0, sizeof(struct r600_bytecode_alu));
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@ -2426,49 +2565,99 @@ static int tgsi_divmod(struct r600_shader_ctx *ctx, int mod, int signed_op)
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return r;
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/* 10. tmp0.z = hi(tmp0.x * src1) = q */
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memset(&alu, 0, sizeof(struct r600_bytecode_alu));
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alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_MULHI_UINT);
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if (ctx->bc->chip_class == CAYMAN) {
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for (j = 0 ; j < 4; j++) {
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memset(&alu, 0, sizeof(struct r600_bytecode_alu));
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alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_MULHI_UINT);
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alu.dst.sel = tmp0;
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alu.dst.chan = 2;
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alu.dst.write = 1;
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alu.dst.sel = tmp0;
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alu.dst.chan = j;
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alu.dst.write = (j == 2);
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alu.src[0].sel = tmp0;
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alu.src[0].chan = 0;
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alu.src[0].sel = tmp0;
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alu.src[0].chan = 0;
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if (signed_op) {
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alu.src[1].sel = tmp2;
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alu.src[1].chan = 0;
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if (signed_op) {
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alu.src[1].sel = tmp2;
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alu.src[1].chan = 0;
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} else {
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r600_bytecode_src(&alu.src[1], &ctx->src[0], i);
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}
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alu.last = (j == 3);
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if ((r = r600_bytecode_add_alu(ctx->bc, &alu)))
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return r;
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}
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} else {
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r600_bytecode_src(&alu.src[1], &ctx->src[0], i);
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}
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memset(&alu, 0, sizeof(struct r600_bytecode_alu));
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alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_MULHI_UINT);
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alu.last = 1;
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if ((r = r600_bytecode_add_alu(ctx->bc, &alu)))
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return r;
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alu.dst.sel = tmp0;
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alu.dst.chan = 2;
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alu.dst.write = 1;
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alu.src[0].sel = tmp0;
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alu.src[0].chan = 0;
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if (signed_op) {
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alu.src[1].sel = tmp2;
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alu.src[1].chan = 0;
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} else {
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r600_bytecode_src(&alu.src[1], &ctx->src[0], i);
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}
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alu.last = 1;
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if ((r = r600_bytecode_add_alu(ctx->bc, &alu)))
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return r;
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}
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/* 11. tmp0.y = lo (src2 * tmp0.z) = src2*q = src1 - r */
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memset(&alu, 0, sizeof(struct r600_bytecode_alu));
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alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_MULLO_UINT);
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if (ctx->bc->chip_class == CAYMAN) {
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for (j = 0 ; j < 4; j++) {
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memset(&alu, 0, sizeof(struct r600_bytecode_alu));
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alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_MULLO_UINT);
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alu.dst.sel = tmp0;
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alu.dst.chan = 1;
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alu.dst.write = 1;
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alu.dst.sel = tmp0;
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alu.dst.chan = j;
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alu.dst.write = (j == 1);
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if (signed_op) {
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alu.src[0].sel = tmp2;
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alu.src[0].chan = 1;
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if (signed_op) {
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alu.src[0].sel = tmp2;
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alu.src[0].chan = 1;
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} else {
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r600_bytecode_src(&alu.src[0], &ctx->src[1], i);
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}
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alu.src[1].sel = tmp0;
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alu.src[1].chan = 2;
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alu.last = (j == 3);
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if ((r = r600_bytecode_add_alu(ctx->bc, &alu)))
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return r;
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}
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} else {
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r600_bytecode_src(&alu.src[0], &ctx->src[1], i);
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memset(&alu, 0, sizeof(struct r600_bytecode_alu));
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alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_MULLO_UINT);
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alu.dst.sel = tmp0;
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alu.dst.chan = 1;
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alu.dst.write = 1;
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||||
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||||
if (signed_op) {
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||||
alu.src[0].sel = tmp2;
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alu.src[0].chan = 1;
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} else {
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||||
r600_bytecode_src(&alu.src[0], &ctx->src[1], i);
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||||
}
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||||
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||||
alu.src[1].sel = tmp0;
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||||
alu.src[1].chan = 2;
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||||
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||||
alu.last = 1;
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||||
if ((r = r600_bytecode_add_alu(ctx->bc, &alu)))
|
||||
return r;
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||||
}
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||||
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||||
alu.src[1].sel = tmp0;
|
||||
alu.src[1].chan = 2;
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||||
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||||
alu.last = 1;
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||||
if ((r = r600_bytecode_add_alu(ctx->bc, &alu)))
|
||||
return r;
|
||||
|
||||
/* 12. tmp0.w = src1 - tmp0.y = r */
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||||
memset(&alu, 0, sizeof(struct r600_bytecode_alu));
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||||
alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_SUB_INT);
|
||||
|
|
@ -4983,7 +5172,7 @@ static struct r600_shader_tgsi_instruction cm_shader_tgsi_instruction[] = {
|
|||
{88, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
|
||||
{TGSI_OPCODE_AND, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_AND_INT, tgsi_op2},
|
||||
{TGSI_OPCODE_OR, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_OR_INT, tgsi_op2},
|
||||
{TGSI_OPCODE_MOD, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
|
||||
{TGSI_OPCODE_MOD, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_imod},
|
||||
{TGSI_OPCODE_XOR, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_XOR_INT, tgsi_op2},
|
||||
{TGSI_OPCODE_SAD, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
|
||||
{TGSI_OPCODE_TXF, 0, SQ_TEX_INST_LD, tgsi_tex},
|
||||
|
|
@ -5015,7 +5204,7 @@ static struct r600_shader_tgsi_instruction cm_shader_tgsi_instruction[] = {
|
|||
/* gap */
|
||||
{118, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
|
||||
{TGSI_OPCODE_F2I, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_FLT_TO_INT, tgsi_op2},
|
||||
{TGSI_OPCODE_IDIV, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
|
||||
{TGSI_OPCODE_IDIV, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_idiv},
|
||||
{TGSI_OPCODE_IMAX, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_MAX_INT, tgsi_op2},
|
||||
{TGSI_OPCODE_IMIN, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_MIN_INT, tgsi_op2},
|
||||
{TGSI_OPCODE_INEG, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_SUB_INT, tgsi_ineg},
|
||||
|
|
@ -5025,11 +5214,11 @@ static struct r600_shader_tgsi_instruction cm_shader_tgsi_instruction[] = {
|
|||
{TGSI_OPCODE_F2U, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_FLT_TO_UINT, tgsi_op2},
|
||||
{TGSI_OPCODE_U2F, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_UINT_TO_FLT, tgsi_op2},
|
||||
{TGSI_OPCODE_UADD, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_ADD_INT, tgsi_op2},
|
||||
{TGSI_OPCODE_UDIV, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
|
||||
{TGSI_OPCODE_UDIV, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_udiv},
|
||||
{TGSI_OPCODE_UMAD, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_umad},
|
||||
{TGSI_OPCODE_UMAX, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_MAX_UINT, tgsi_op2},
|
||||
{TGSI_OPCODE_UMIN, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_MIN_UINT, tgsi_op2},
|
||||
{TGSI_OPCODE_UMOD, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
|
||||
{TGSI_OPCODE_UMOD, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_umod},
|
||||
{TGSI_OPCODE_UMUL, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_MULLO_INT, cayman_mul_int_instr},
|
||||
{TGSI_OPCODE_USEQ, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_SETE_INT, tgsi_op2},
|
||||
{TGSI_OPCODE_USGE, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_SETGE_UINT, tgsi_op2},
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue