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Diffstat (limited to 'src/gallium/drivers/r600/r600_asm.c')
-rw-r--r--src/gallium/drivers/r600/r600_asm.c189
1 files changed, 117 insertions, 72 deletions
diff --git a/src/gallium/drivers/r600/r600_asm.c b/src/gallium/drivers/r600/r600_asm.c
index ca2bf93b0b8..e96236e06ee 100644
--- a/src/gallium/drivers/r600/r600_asm.c
+++ b/src/gallium/drivers/r600/r600_asm.c
@@ -608,10 +608,90 @@ static int replace_gpr_with_pv_ps(struct r600_bc_alu *slots[5], struct r600_bc_a
return 0;
}
+void r600_bc_special_constants(u32 value, unsigned *sel, unsigned *neg)
+{
+ switch(value) {
+ case 0:
+ *sel = V_SQ_ALU_SRC_0;
+ break;
+ case 1:
+ *sel = V_SQ_ALU_SRC_1_INT;
+ break;
+ case -1:
+ *sel = V_SQ_ALU_SRC_M_1_INT;
+ break;
+ case 0x3F800000: // 1.0f
+ *sel = V_SQ_ALU_SRC_1;
+ break;
+ case 0x3F000000: // 0.5f
+ *sel = V_SQ_ALU_SRC_0_5;
+ break;
+ case 0xBF800000: // -1.0f
+ *sel = V_SQ_ALU_SRC_1;
+ *neg ^= 1;
+ break;
+ case 0xBF000000: // -0.5f
+ *sel = V_SQ_ALU_SRC_0_5;
+ *neg ^= 1;
+ break;
+ default:
+ *sel = V_SQ_ALU_SRC_LITERAL;
+ break;
+ }
+}
+
+/* compute how many literal are needed */
+static int r600_bc_alu_nliterals(struct r600_bc_alu *alu, uint32_t literal[4], unsigned *nliteral)
+{
+ unsigned num_src = r600_bc_get_num_operands(alu);
+ unsigned i, j;
+
+ for (i = 0; i < num_src; ++i) {
+ if (alu->src[i].sel == V_SQ_ALU_SRC_LITERAL) {
+ uint32_t value = alu->src[i].value[alu->src[i].chan];
+ unsigned found = 0;
+ for (j = 0; j < *nliteral; ++j) {
+ if (literal[j] == value) {
+ found = 1;
+ break;
+ }
+ }
+ if (!found) {
+ if (*nliteral >= 4)
+ return -EINVAL;
+ literal[(*nliteral)++] = value;
+ }
+ }
+ }
+ return 0;
+}
+
+static void r600_bc_alu_adjust_literals(struct r600_bc_alu *alu, uint32_t literal[4], unsigned nliteral)
+{
+ unsigned num_src = r600_bc_get_num_operands(alu);
+ unsigned i, j;
+
+ for (i = 0; i < num_src; ++i) {
+ if (alu->src[i].sel == V_SQ_ALU_SRC_LITERAL) {
+ uint32_t value = alu->src[i].value[alu->src[i].chan];
+ for (j = 0; j < nliteral; ++j) {
+ if (literal[j] == value) {
+ alu->src[i].chan = j;
+ break;
+ }
+ }
+ }
+ }
+}
+
static int merge_inst_groups(struct r600_bc *bc, struct r600_bc_alu *slots[5], struct r600_bc_alu *alu_prev)
{
struct r600_bc_alu *prev[5];
struct r600_bc_alu *result[5] = { NULL };
+
+ uint32_t literal[4];
+ unsigned nliteral = 0;
+
int i, j, r, src, num_src;
int num_once_inst = 0;
@@ -620,13 +700,12 @@ static int merge_inst_groups(struct r600_bc *bc, struct r600_bc_alu *slots[5], s
return r;
for (i = 0; i < 5; ++i) {
- // TODO: we have literals? forget it!
- if (prev[i] && prev[i]->nliteral)
+ /* check number of literals */
+ if (prev[i] && r600_bc_alu_nliterals(prev[i], literal, &nliteral))
return 0;
- if (slots[i] && slots[i]->nliteral)
+ if (slots[i] && r600_bc_alu_nliterals(slots[i], literal, &nliteral))
return 0;
-
// let's check used slots
if (prev[i] && !slots[i]) {
result[i] = prev[i];
@@ -834,7 +913,6 @@ int r600_bc_add_alu_type(struct r600_bc *bc, const struct r600_bc_alu *alu, int
if (nalu == NULL)
return -ENOMEM;
memcpy(nalu, alu, sizeof(struct r600_bc_alu));
- nalu->nliteral = 0;
if (bc->cf_last != NULL && bc->cf_last->inst != (type << 3)) {
/* check if we could add it anyway */
@@ -880,20 +958,10 @@ int r600_bc_add_alu_type(struct r600_bc *bc, const struct r600_bc_alu *alu, int
if (nalu->src[i].sel >= bc->ngpr && nalu->src[i].sel < 128) {
bc->ngpr = nalu->src[i].sel + 1;
}
- /* compute how many literal are needed
- * either 2 or 4 literals
- */
- if (nalu->src[i].sel == 253) {
- if (((nalu->src[i].chan + 2) & 0x6) > nalu->nliteral) {
- nalu->nliteral = (nalu->src[i].chan + 2) & 0x6;
- }
- }
- }
- if (!LIST_IS_EMPTY(&bc->cf_last->alu)) {
- lalu = LIST_ENTRY(struct r600_bc_alu, bc->cf_last->alu.prev, list);
- if (!lalu->last && lalu->nliteral > nalu->nliteral) {
- nalu->nliteral = lalu->nliteral;
- }
+ if (nalu->src[i].sel == V_SQ_ALU_SRC_LITERAL)
+ r600_bc_special_constants(
+ nalu->src[i].value[nalu->src[i].chan],
+ &nalu->src[i].sel, &nalu->src[i].neg);
}
if (nalu->dst.sel >= bc->ngpr) {
bc->ngpr = nalu->dst.sel + 1;
@@ -938,46 +1006,6 @@ int r600_bc_add_alu(struct r600_bc *bc, const struct r600_bc_alu *alu)
return r600_bc_add_alu_type(bc, alu, BC_INST(bc, V_SQ_CF_ALU_WORD1_SQ_CF_INST_ALU));
}
-int r600_bc_add_literal(struct r600_bc *bc, const u32 *value)
-{
- struct r600_bc_alu *alu;
-
- if (bc->cf_last == NULL) {
- return 0;
- }
- if (bc->cf_last->inst == V_SQ_CF_WORD1_SQ_CF_INST_TEX) {
- return 0;
- }
- /* all same on EG */
- if (bc->cf_last->inst == V_SQ_CF_WORD1_SQ_CF_INST_JUMP ||
- bc->cf_last->inst == V_SQ_CF_WORD1_SQ_CF_INST_ELSE ||
- bc->cf_last->inst == V_SQ_CF_WORD1_SQ_CF_INST_LOOP_START_NO_AL ||
- bc->cf_last->inst == V_SQ_CF_WORD1_SQ_CF_INST_LOOP_BREAK ||
- bc->cf_last->inst == V_SQ_CF_WORD1_SQ_CF_INST_LOOP_CONTINUE ||
- bc->cf_last->inst == V_SQ_CF_WORD1_SQ_CF_INST_LOOP_END ||
- bc->cf_last->inst == V_SQ_CF_WORD1_SQ_CF_INST_POP) {
- return 0;
- }
- /* same on EG */
- if (((bc->cf_last->inst != (V_SQ_CF_ALU_WORD1_SQ_CF_INST_ALU << 3)) &&
- (bc->cf_last->inst != (V_SQ_CF_ALU_WORD1_SQ_CF_INST_ALU_POP_AFTER << 3)) &&
- (bc->cf_last->inst != (V_SQ_CF_ALU_WORD1_SQ_CF_INST_ALU_POP2_AFTER << 3)) &&
- (bc->cf_last->inst != (V_SQ_CF_ALU_WORD1_SQ_CF_INST_ALU_PUSH_BEFORE << 3))) ||
- LIST_IS_EMPTY(&bc->cf_last->alu)) {
- R600_ERR("last CF is not ALU (%p)\n", bc->cf_last);
- return -EINVAL;
- }
- alu = LIST_ENTRY(struct r600_bc_alu, bc->cf_last->alu.prev, list);
- if (!alu->last || !alu->nliteral || alu->literal_added) {
- return 0;
- }
- memcpy(alu->value, value, 4 * 4);
- bc->cf_last->ndw += alu->nliteral;
- bc->ndw += alu->nliteral;
- alu->literal_added = 1;
- return 0;
-}
-
int r600_bc_add_vtx(struct r600_bc *bc, const struct r600_bc_vtx *vtx)
{
struct r600_bc_vtx *nvtx = r600_bc_vtx();
@@ -1134,8 +1162,6 @@ static int r600_bc_tex_build(struct r600_bc *bc, struct r600_bc_tex *tex, unsign
/* r600 only, r700/eg bits in r700_asm.c */
static int r600_bc_alu_build(struct r600_bc *bc, struct r600_bc_alu *alu, unsigned id)
{
- unsigned i;
-
/* don't replace gpr by pv or ps for destination register */
bc->bytecode[id++] = S_SQ_ALU_WORD0_SRC0_SEL(alu->src[0].sel) |
S_SQ_ALU_WORD0_SRC0_REL(alu->src[0].rel) |
@@ -1172,14 +1198,6 @@ static int r600_bc_alu_build(struct r600_bc *bc, struct r600_bc_alu *alu, unsign
S_SQ_ALU_WORD1_OP2_UPDATE_EXECUTE_MASK(alu->predicate) |
S_SQ_ALU_WORD1_OP2_UPDATE_PRED(alu->predicate);
}
- if (alu->last) {
- if (alu->nliteral && !alu->literal_added) {
- R600_ERR("Bug in ALU processing for instruction 0x%08x, literal not added correctly\n", alu->inst);
- }
- for (i = 0; i < alu->nliteral; i++) {
- bc->bytecode[id++] = alu->value[i];
- }
- }
return 0;
}
@@ -1257,8 +1275,10 @@ int r600_bc_build(struct r600_bc *bc)
struct r600_bc_alu *alu;
struct r600_bc_vtx *vtx;
struct r600_bc_tex *tex;
+ uint32_t literal[4];
+ unsigned nliteral;
unsigned addr;
- int r;
+ int i, r;
if (bc->callstack[0].max > 0)
bc->nstack = ((bc->callstack[0].max + 3) >> 2) + 2;
@@ -1275,6 +1295,16 @@ int r600_bc_build(struct r600_bc *bc)
case (V_SQ_CF_ALU_WORD1_SQ_CF_INST_ALU_POP_AFTER << 3):
case (V_SQ_CF_ALU_WORD1_SQ_CF_INST_ALU_POP2_AFTER << 3):
case (V_SQ_CF_ALU_WORD1_SQ_CF_INST_ALU_PUSH_BEFORE << 3):
+ nliteral = 0;
+ LIST_FOR_EACH_ENTRY(alu, &cf->alu, list) {
+ r = r600_bc_alu_nliterals(alu, literal, &nliteral);
+ if (r)
+ return r;
+ if (alu->last) {
+ cf->ndw += align(nliteral, 2);
+ nliteral = 0;
+ }
+ }
break;
case V_SQ_CF_WORD1_SQ_CF_INST_TEX:
case V_SQ_CF_WORD1_SQ_CF_INST_VTX:
@@ -1323,7 +1353,12 @@ int r600_bc_build(struct r600_bc *bc)
case (V_SQ_CF_ALU_WORD1_SQ_CF_INST_ALU_POP_AFTER << 3):
case (V_SQ_CF_ALU_WORD1_SQ_CF_INST_ALU_POP2_AFTER << 3):
case (V_SQ_CF_ALU_WORD1_SQ_CF_INST_ALU_PUSH_BEFORE << 3):
+ nliteral = 0;
LIST_FOR_EACH_ENTRY(alu, &cf->alu, list) {
+ r = r600_bc_alu_nliterals(alu, literal, &nliteral);
+ if (r)
+ return r;
+ r600_bc_alu_adjust_literals(alu, literal, nliteral);
switch(bc->chiprev) {
case CHIPREV_R600:
r = r600_bc_alu_build(bc, alu, addr);
@@ -1340,7 +1375,10 @@ int r600_bc_build(struct r600_bc *bc)
return r;
addr += 2;
if (alu->last) {
- addr += alu->nliteral;
+ for (i = 0; i < align(nliteral, 2); ++i) {
+ bc->bytecode[addr++] = literal[i];
+ }
+ nliteral = 0;
}
}
break;
@@ -1427,6 +1465,8 @@ void r600_bc_dump(struct r600_bc *bc)
struct r600_bc_tex *tex = NULL;
unsigned i, id;
+ uint32_t literal[4];
+ unsigned nliteral;
char chip = '6';
switch (bc->chiprev) {
@@ -1513,7 +1553,10 @@ void r600_bc_dump(struct r600_bc *bc)
}
id = cf->addr;
+ nliteral = 0;
LIST_FOR_EACH_ENTRY(alu, &cf->alu, list) {
+ r600_bc_alu_nliterals(alu, literal, &nliteral);
+
fprintf(stderr, "%04d %08X ", id, bc->bytecode[id]);
fprintf(stderr, "SRC0(SEL:%d ", alu->src[0].sel);
fprintf(stderr, "REL:%d ", alu->src[0].rel);
@@ -1548,10 +1591,12 @@ void r600_bc_dump(struct r600_bc *bc)
id++;
if (alu->last) {
- for (i = 0; i < alu->nliteral; i++, id++) {
+ for (i = 0; i < nliteral; i++, id++) {
float *f = (float*)(bc->bytecode + id);
fprintf(stderr, "%04d %08X\t%f\n", id, bc->bytecode[id], *f);
}
+ id += nliteral & 1;
+ nliteral = 0;
}
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-20 06:44:00 +0000