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path: root/src/gallium/drivers/nv50/nv50_program.c
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Diffstat (limited to 'src/gallium/drivers/nv50/nv50_program.c')
-rw-r--r--src/gallium/drivers/nv50/nv50_program.c760
1 files changed, 511 insertions, 249 deletions
diff --git a/src/gallium/drivers/nv50/nv50_program.c b/src/gallium/drivers/nv50/nv50_program.c
index f0fe7e6168..679c28ce4b 100644
--- a/src/gallium/drivers/nv50/nv50_program.c
+++ b/src/gallium/drivers/nv50/nv50_program.c
@@ -98,9 +98,17 @@ struct nv50_reg {
#define NV50_MOD_ABS 2
#define NV50_MOD_SAT 4
-/* arbitrary limits */
-#define MAX_IF_DEPTH 4
-#define MAX_LOOP_DEPTH 4
+/* STACK: Conditionals and loops have to use the (per warp) stack.
+ * Stack entries consist of an entry type (divergent path, join at),
+ * a mask indicating the active threads of the warp, and an address.
+ * MPs can store 12 stack entries internally, if we need more (and
+ * we probably do), we have to create a stack buffer in VRAM.
+ */
+/* impose low limits for now */
+#define NV50_MAX_COND_NESTING 4
+#define NV50_MAX_LOOP_NESTING 3
+
+#define JOIN_ON(e) e; pc->p->exec_tail->inst[1] |= 2
struct nv50_pc {
struct nv50_program *p;
@@ -119,10 +127,11 @@ struct nv50_pc {
struct nv50_reg *param;
int param_nr;
struct nv50_reg *immd;
- float *immd_buf;
+ uint32_t *immd_buf;
int immd_nr;
struct nv50_reg **addr;
int addr_nr;
+ uint8_t addr_alloc; /* set bit indicates used for TGSI_FILE_ADDRESS */
struct nv50_reg *temp_temp[16];
unsigned temp_temp_nr;
@@ -131,17 +140,19 @@ struct nv50_pc {
struct nv50_reg *r_brdc;
struct nv50_reg *r_dst[4];
+ struct nv50_reg reg_instances[16];
+ unsigned reg_instance_nr;
+
unsigned interp_mode[32];
/* perspective interpolation registers */
struct nv50_reg *iv_p;
struct nv50_reg *iv_c;
- struct nv50_program_exec *if_cond;
- struct nv50_program_exec *if_insn[MAX_IF_DEPTH];
- struct nv50_program_exec *br_join[MAX_IF_DEPTH];
- struct nv50_program_exec *br_loop[MAX_LOOP_DEPTH]; /* for BRK branch */
+ struct nv50_program_exec *if_insn[NV50_MAX_COND_NESTING];
+ struct nv50_program_exec *if_join[NV50_MAX_COND_NESTING];
+ struct nv50_program_exec *loop_brka[NV50_MAX_LOOP_NESTING];
int if_lvl, loop_lvl;
- unsigned loop_pos[MAX_LOOP_DEPTH];
+ unsigned loop_pos[NV50_MAX_LOOP_NESTING];
/* current instruction and total number of insns */
unsigned insn_cur;
@@ -150,6 +161,20 @@ struct nv50_pc {
boolean allow32;
};
+static INLINE struct nv50_reg *
+reg_instance(struct nv50_pc *pc, struct nv50_reg *reg)
+{
+ struct nv50_reg *ri;
+
+ assert(pc->reg_instance_nr < 16);
+ ri = &pc->reg_instances[pc->reg_instance_nr++];
+ if (reg) {
+ *ri = *reg;
+ reg->mod = 0;
+ }
+ return ri;
+}
+
static INLINE void
ctor_reg(struct nv50_reg *reg, unsigned type, int index, int hw)
{
@@ -176,8 +201,7 @@ terminate_mbb(struct nv50_pc *pc)
/* remove records of temporary address register values */
for (i = 0; i < NV50_SU_MAX_ADDR; ++i)
- if (pc->r_addr[i].index < 0)
- pc->r_addr[i].rhw = -1;
+ pc->r_addr[i].rhw = -1;
}
static void
@@ -342,25 +366,34 @@ static void
kill_temp_temp(struct nv50_pc *pc)
{
int i;
-
+
for (i = 0; i < pc->temp_temp_nr; i++)
free_temp(pc, pc->temp_temp[i]);
pc->temp_temp_nr = 0;
}
static int
-ctor_immd(struct nv50_pc *pc, float x, float y, float z, float w)
+ctor_immd_4u32(struct nv50_pc *pc,
+ uint32_t x, uint32_t y, uint32_t z, uint32_t w)
{
- pc->immd_buf = REALLOC(pc->immd_buf, (pc->immd_nr * 4 * sizeof(float)),
- (pc->immd_nr + 1) * 4 * sizeof(float));
+ unsigned size = pc->immd_nr * 4 * sizeof(uint32_t);
+
+ pc->immd_buf = REALLOC(pc->immd_buf, size, size + 4 * sizeof(uint32_t));
+
pc->immd_buf[(pc->immd_nr * 4) + 0] = x;
pc->immd_buf[(pc->immd_nr * 4) + 1] = y;
pc->immd_buf[(pc->immd_nr * 4) + 2] = z;
pc->immd_buf[(pc->immd_nr * 4) + 3] = w;
-
+
return pc->immd_nr++;
}
+static INLINE int
+ctor_immd_4f32(struct nv50_pc *pc, float x, float y, float z, float w)
+{
+ return ctor_immd_4u32(pc, fui(x), fui(y), fui(z), fui(w));
+}
+
static struct nv50_reg *
alloc_immd(struct nv50_pc *pc, float f)
{
@@ -368,11 +401,11 @@ alloc_immd(struct nv50_pc *pc, float f)
unsigned hw;
for (hw = 0; hw < pc->immd_nr * 4; hw++)
- if (pc->immd_buf[hw] == f)
+ if (pc->immd_buf[hw] == fui(f))
break;
if (hw == pc->immd_nr * 4)
- hw = ctor_immd(pc, f, -f, 0.5 * f, 0) * 4;
+ hw = ctor_immd_4f32(pc, f, -f, 0.5 * f, 0) * 4;
ctor_reg(r, P_IMMD, -1, hw);
return r;
@@ -464,22 +497,24 @@ set_dst(struct nv50_pc *pc, struct nv50_reg *dst, struct nv50_program_exec *e)
static INLINE void
set_immd(struct nv50_pc *pc, struct nv50_reg *imm, struct nv50_program_exec *e)
{
- unsigned val;
- float f = pc->immd_buf[imm->hw];
+ union {
+ float f;
+ uint32_t ui;
+ } u;
+ u.ui = pc->immd_buf[imm->hw];
- if (imm->mod & NV50_MOD_ABS)
- f = fabsf(f);
- val = fui((imm->mod & NV50_MOD_NEG) ? -f : f);
+ u.f = (imm->mod & NV50_MOD_ABS) ? fabsf(u.f) : u.f;
+ u.f = (imm->mod & NV50_MOD_NEG) ? -u.f : u.f;
set_long(pc, e);
- /*XXX: can't be predicated - bits overlap.. catch cases where both
- * are required and avoid them. */
+ /* XXX: can't be predicated - bits overlap; cases where both
+ * are required should be avoided by using pc->allow32 */
set_pred(pc, 0, 0, e);
set_pred_wr(pc, 0, 0, e);
e->inst[1] |= 0x00000002 | 0x00000001;
- e->inst[0] |= (val & 0x3f) << 16;
- e->inst[1] |= (val >> 6) << 2;
+ e->inst[0] |= (u.ui & 0x3f) << 16;
+ e->inst[1] |= (u.ui >> 6) << 2;
}
static INLINE void
@@ -511,21 +546,24 @@ emit_add_addr_imm(struct nv50_pc *pc, struct nv50_reg *dst,
static struct nv50_reg *
alloc_addr(struct nv50_pc *pc, struct nv50_reg *ref)
{
- int i;
struct nv50_reg *a_tgsi = NULL, *a = NULL;
+ int i;
+ uint8_t avail = ~pc->addr_alloc;
if (!ref) {
- /* allocate for TGSI address reg */
- for (i = 0; i < NV50_SU_MAX_ADDR; ++i) {
- if (pc->r_addr[i].index >= 0)
- continue;
- if (pc->r_addr[i].rhw >= 0 &&
- pc->r_addr[i].acc == pc->insn_cur)
- continue;
+ /* allocate for TGSI_FILE_ADDRESS */
+ while (avail) {
+ i = ffs(avail) - 1;
- pc->r_addr[i].rhw = -1;
- pc->r_addr[i].index = i;
- return &pc->r_addr[i];
+ if (pc->r_addr[i].rhw < 0 ||
+ pc->r_addr[i].acc != pc->insn_cur) {
+ pc->addr_alloc |= (1 << i);
+
+ pc->r_addr[i].rhw = -1;
+ pc->r_addr[i].index = i;
+ return &pc->r_addr[i];
+ }
+ avail &= ~(1 << i);
}
assert(0);
return NULL;
@@ -533,15 +571,16 @@ alloc_addr(struct nv50_pc *pc, struct nv50_reg *ref)
/* Allocate and set an address reg so we can access 'ref'.
*
- * If and r_addr has index < 0, it is not reserved for TGSI,
- * and index will be the negative of the TGSI addr index the
- * value in rhw is relative to, or -256 if rhw is an offset
- * from 0. If rhw < 0, the reg has not been initialized.
+ * If and r_addr->index will be -1 or the hw index the value
+ * value in rhw is relative to. If rhw < 0, the reg has not
+ * been initialized or is in use for TGSI_FILE_ADDRESS.
*/
- for (i = NV50_SU_MAX_ADDR - 1; i >= 0; --i) {
- if (pc->r_addr[i].index >= 0) /* occupied for TGSI */
- continue;
- if (pc->r_addr[i].rhw < 0) { /* unused */
+ while (avail) { /* only consider regs that are not TGSI */
+ i = ffs(avail) - 1;
+ avail &= ~(1 << i);
+
+ if ((!a || a->rhw >= 0) && pc->r_addr[i].rhw < 0) {
+ /* prefer an usused reg with low hw index */
a = &pc->r_addr[i];
continue;
}
@@ -551,8 +590,8 @@ alloc_addr(struct nv50_pc *pc, struct nv50_reg *ref)
if (ref->hw - pc->r_addr[i].rhw >= 128)
continue;
- if ((ref->acc >= 0 && pc->r_addr[i].index == -256) ||
- (ref->acc < 0 && -pc->r_addr[i].index == ref->index)) {
+ if ((ref->acc >= 0 && pc->r_addr[i].index < 0) ||
+ (ref->acc < 0 && pc->r_addr[i].index == ref->index)) {
pc->r_addr[i].acc = pc->insn_cur;
return &pc->r_addr[i];
}
@@ -566,7 +605,7 @@ alloc_addr(struct nv50_pc *pc, struct nv50_reg *ref)
a->rhw = ref->hw & ~0x7f;
a->acc = pc->insn_cur;
- a->index = a_tgsi ? -ref->index : -256;
+ a->index = a_tgsi ? ref->index : -1;
return a;
}
@@ -644,7 +683,7 @@ emit_mov(struct nv50_pc *pc, struct nv50_reg *dst, struct nv50_reg *src)
if (src->type == P_IMMD || src->type == P_CONST) {
set_long(pc, e);
set_data(pc, src, 0x7f, 9, e);
- e->inst[1] |= 0x20000000; /* src0 const? */
+ e->inst[1] |= 0x20000000; /* mov from c[] */
} else {
if (src->type == P_ATTR) {
set_long(pc, e);
@@ -659,9 +698,9 @@ emit_mov(struct nv50_pc *pc, struct nv50_reg *dst, struct nv50_reg *src)
if (is_long(e) && !is_immd(e)) {
e->inst[1] |= 0x04000000; /* 32-bit */
- e->inst[1] |= 0x0000c000; /* "subsubop" 0x3 */
+ e->inst[1] |= 0x0000c000; /* 32-bit c[] load / lane mask 0:1 */
if (!(e->inst[1] & 0x20000000))
- e->inst[1] |= 0x00030000; /* "subsubop" 0xf */
+ e->inst[1] |= 0x00030000; /* lane mask 2:3 */
} else
e->inst[0] |= 0x00008000;
@@ -676,6 +715,17 @@ emit_mov_immdval(struct nv50_pc *pc, struct nv50_reg *dst, float f)
FREE(imm);
}
+static void
+emit_nop(struct nv50_pc *pc)
+{
+ struct nv50_program_exec *e = exec(pc);
+
+ e->inst[0] = 0xf0000000;
+ set_long(pc, e);
+ e->inst[1] = 0xe0000000;
+ emit(pc, e);
+}
+
static boolean
check_swap_src_0_1(struct nv50_pc *pc,
struct nv50_reg **s0, struct nv50_reg **s1)
@@ -795,6 +845,33 @@ set_src_2(struct nv50_pc *pc, struct nv50_reg *src, struct nv50_program_exec *e)
}
static void
+emit_mov_from_pred(struct nv50_pc *pc, struct nv50_reg *dst, int pred)
+{
+ struct nv50_program_exec *e = exec(pc);
+
+ assert(dst->type == P_TEMP);
+ e->inst[1] = 0x20000000 | (pred << 12);
+ set_long(pc, e);
+ set_dst(pc, dst, e);
+
+ emit(pc, e);
+}
+
+static void
+emit_mov_to_pred(struct nv50_pc *pc, int pred, struct nv50_reg *src)
+{
+ struct nv50_program_exec *e = exec(pc);
+
+ e->inst[0] = 0x000001fc;
+ e->inst[1] = 0xa0000008;
+ set_long(pc, e);
+ set_pred_wr(pc, 1, pred, e);
+ set_src_0_restricted(pc, src, e);
+
+ emit(pc, e);
+}
+
+static void
emit_mul(struct nv50_pc *pc, struct nv50_reg *dst, struct nv50_reg *src0,
struct nv50_reg *src1)
{
@@ -898,7 +975,6 @@ static INLINE void
emit_sub(struct nv50_pc *pc, struct nv50_reg *dst, struct nv50_reg *src0,
struct nv50_reg *src1)
{
- assert(src0 != src1);
src1->mod ^= NV50_MOD_NEG;
emit_add(pc, dst, src0, src1);
src1->mod ^= NV50_MOD_NEG;
@@ -967,7 +1043,6 @@ static INLINE void
emit_msb(struct nv50_pc *pc, struct nv50_reg *dst, struct nv50_reg *src0,
struct nv50_reg *src1, struct nv50_reg *src2)
{
- assert(src2 != src0 && src2 != src1);
src2->mod ^= NV50_MOD_NEG;
emit_mad(pc, dst, src0, src1, src2);
src2->mod ^= NV50_MOD_NEG;
@@ -1120,7 +1195,6 @@ emit_set(struct nv50_pc *pc, unsigned ccode, struct nv50_reg *dst, int wp,
set_src_1(pc, src1, e);
emit(pc, e);
- pc->if_cond = pc->p->exec_tail; /* record for OPCODE_IF */
/* cvt.f32.u32/s32 (?) if we didn't only write the predicate */
if (rdst)
@@ -1242,24 +1316,128 @@ emit_kil(struct nv50_pc *pc, struct nv50_reg *src)
{
struct nv50_program_exec *e;
const int r_pred = 1;
- unsigned cvn = CVT_F32_F32;
-
- if (src->mod & NV50_MOD_NEG)
- cvn |= CVT_NEG;
- /* write predicate reg */
- emit_cvt(pc, NULL, src, r_pred, CVTOP_RN, cvn);
- /* conditional discard */
e = exec(pc);
- e->inst[0] = 0x00000002;
+ e->inst[0] = 0x00000002; /* discard */
+ set_long(pc, e); /* sets cond code to ALWAYS */
+
+ if (src) {
+ unsigned cvn = CVT_F32_F32;
+
+ set_pred(pc, 0x1 /* cc = LT */, r_pred, e);
+
+ if (src->mod & NV50_MOD_NEG)
+ cvn |= CVT_NEG;
+ /* write predicate reg */
+ emit_cvt(pc, NULL, src, r_pred, CVTOP_RN, cvn);
+ }
+
+ emit(pc, e);
+}
+
+static struct nv50_program_exec *
+emit_breakaddr(struct nv50_pc *pc)
+{
+ struct nv50_program_exec *e = exec(pc);
+
+ e->inst[0] = 0x40000002;
+ set_long(pc, e);
+
+ emit(pc, e);
+ return e;
+}
+
+static void
+emit_break(struct nv50_pc *pc, int pred, unsigned cc)
+{
+ struct nv50_program_exec *e = exec(pc);
+
+ e->inst[0] = 0x50000002;
+ set_long(pc, e);
+ if (pred >= 0)
+ set_pred(pc, cc, pred, e);
+
+ emit(pc, e);
+}
+
+static struct nv50_program_exec *
+emit_joinat(struct nv50_pc *pc)
+{
+ struct nv50_program_exec *e = exec(pc);
+
+ e->inst[0] = 0xa0000002;
+ set_long(pc, e);
+
+ emit(pc, e);
+ return e;
+}
+
+static struct nv50_program_exec *
+emit_branch(struct nv50_pc *pc, int pred, unsigned cc)
+{
+ struct nv50_program_exec *e = exec(pc);
+
+ e->inst[0] = 0x10000002;
set_long(pc, e);
- set_pred(pc, 0x1 /* LT */, r_pred, e);
+ if (pred >= 0)
+ set_pred(pc, cc, pred, e);
emit(pc, e);
+ return pc->p->exec_tail;
+}
+
+static void
+emit_ret(struct nv50_pc *pc, int pred, unsigned cc)
+{
+ struct nv50_program_exec *e = exec(pc);
+
+ e->inst[0] = 0x30000002;
+ set_long(pc, e);
+ if (pred >= 0)
+ set_pred(pc, cc, pred, e);
+
+ emit(pc, e);
+}
+
+#define QOP_ADD 0
+#define QOP_SUBR 1
+#define QOP_SUB 2
+#define QOP_MOV_SRC1 3
+
+/* For a quad of threads / top left, top right, bottom left, bottom right
+ * pixels, do a different operation, and take src0 from a specific thread.
+ */
+static void
+emit_quadop(struct nv50_pc *pc, struct nv50_reg *dst, int wp, int lane_src0,
+ struct nv50_reg *src0, struct nv50_reg *src1, ubyte qop)
+{
+ struct nv50_program_exec *e = exec(pc);
+
+ e->inst[0] = 0xc0000000;
+ e->inst[1] = 0x80000000;
+ set_long(pc, e);
+ e->inst[0] |= lane_src0 << 16;
+ set_src_0(pc, src0, e);
+ set_src_2(pc, src1, e);
+
+ if (wp >= 0)
+ set_pred_wr(pc, 1, wp, e);
+
+ if (dst)
+ set_dst(pc, dst, e);
+ else {
+ e->inst[0] |= 0x000001fc;
+ e->inst[1] |= 0x00000008;
+ }
+
+ e->inst[0] |= (qop & 3) << 20;
+ e->inst[1] |= (qop >> 2) << 22;
+
+ emit(pc, e);
}
static void
load_cube_tex_coords(struct nv50_pc *pc, struct nv50_reg *t[4],
- struct nv50_reg **src, boolean proj)
+ struct nv50_reg **src, unsigned arg, boolean proj)
{
int mod[3] = { src[0]->mod, src[1]->mod, src[2]->mod };
@@ -1276,6 +1454,10 @@ load_cube_tex_coords(struct nv50_pc *pc, struct nv50_reg *t[4],
if (proj && 0 /* looks more correct without this */)
emit_mul(pc, t[2], t[2], src[3]);
+ else
+ if (arg == 4) /* there is no textureProj(samplerCubeShadow) */
+ emit_mov(pc, t[3], src[3]);
+
emit_flop(pc, 0, t[2], t[2]);
emit_mul(pc, t[0], src[0], t[2]);
@@ -1284,89 +1466,214 @@ load_cube_tex_coords(struct nv50_pc *pc, struct nv50_reg *t[4],
}
static void
-emit_tex(struct nv50_pc *pc, struct nv50_reg **dst, unsigned mask,
- struct nv50_reg **src, unsigned unit, unsigned type, boolean proj)
+load_proj_tex_coords(struct nv50_pc *pc, struct nv50_reg *t[4],
+ struct nv50_reg **src, unsigned dim, unsigned arg)
{
- struct nv50_reg *t[4];
- struct nv50_program_exec *e;
+ unsigned c, mode;
+
+ if (src[0]->type == P_TEMP && src[0]->rhw != -1) {
+ mode = pc->interp_mode[src[0]->index] | INTERP_PERSPECTIVE;
- unsigned c, mode, dim;
+ t[3]->rhw = src[3]->rhw;
+ emit_interp(pc, t[3], NULL, (mode & INTERP_CENTROID));
+ emit_flop(pc, 0, t[3], t[3]);
+ for (c = 0; c < dim; ++c) {
+ t[c]->rhw = src[c]->rhw;
+ emit_interp(pc, t[c], t[3], mode);
+ }
+ if (arg != dim) { /* depth reference value */
+ t[dim]->rhw = src[2]->rhw;
+ emit_interp(pc, t[dim], t[3], mode);
+ }
+ } else {
+ /* XXX: for some reason the blob sometimes uses MAD
+ * (mad f32 $rX $rY $rZ neg $r63)
+ */
+ emit_flop(pc, 0, t[3], src[3]);
+ for (c = 0; c < dim; ++c)
+ emit_mul(pc, t[c], src[c], t[3]);
+ if (arg != dim) /* depth reference value */
+ emit_mul(pc, t[dim], src[2], t[3]);
+ }
+}
+
+static INLINE void
+get_tex_dim(unsigned type, unsigned *dim, unsigned *arg)
+{
switch (type) {
case TGSI_TEXTURE_1D:
- dim = 1;
+ *arg = *dim = 1;
+ break;
+ case TGSI_TEXTURE_SHADOW1D:
+ *dim = 1;
+ *arg = 2;
break;
case TGSI_TEXTURE_UNKNOWN:
case TGSI_TEXTURE_2D:
- case TGSI_TEXTURE_SHADOW1D: /* XXX: x, z */
case TGSI_TEXTURE_RECT:
- dim = 2;
+ *arg = *dim = 2;
+ break;
+ case TGSI_TEXTURE_SHADOW2D:
+ case TGSI_TEXTURE_SHADOWRECT:
+ *dim = 2;
+ *arg = 3;
break;
case TGSI_TEXTURE_3D:
case TGSI_TEXTURE_CUBE:
- case TGSI_TEXTURE_SHADOW2D:
- case TGSI_TEXTURE_SHADOWRECT: /* XXX */
- dim = 3;
+ *dim = *arg = 3;
break;
default:
assert(0);
break;
}
+}
- /* some cards need t[0]'s hw index to be a multiple of 4 */
- alloc_temp4(pc, t, 0);
+/* We shouldn't execute TEXLOD if any of the pixels in a quad have
+ * different LOD values, so branch off groups of equal LOD.
+ */
+static void
+emit_texlod_sequence(struct nv50_pc *pc, struct nv50_reg *tlod,
+ struct nv50_reg *src, struct nv50_program_exec *tex)
+{
+ struct nv50_program_exec *join_at;
+ unsigned i, target = pc->p->exec_size + 7 * 2;
- if (type == TGSI_TEXTURE_CUBE) {
- load_cube_tex_coords(pc, t, src, proj);
- } else
- if (proj) {
- if (src[0]->type == P_TEMP && src[0]->rhw != -1) {
- mode = pc->interp_mode[src[0]->index];
-
- t[3]->rhw = src[3]->rhw;
- emit_interp(pc, t[3], NULL, (mode & INTERP_CENTROID));
- emit_flop(pc, 0, t[3], t[3]);
-
- for (c = 0; c < dim; c++) {
- t[c]->rhw = src[c]->rhw;
- emit_interp(pc, t[c], t[3],
- (mode | INTERP_PERSPECTIVE));
- }
- } else {
- emit_flop(pc, 0, t[3], src[3]);
- for (c = 0; c < dim; c++)
- emit_mul(pc, t[c], src[c], t[3]);
+ /* Subtract lod of each pixel from lod of top left pixel, jump
+ * texlod insn if result is 0, then repeat for 2 other pixels.
+ */
+ join_at = emit_joinat(pc);
+ emit_quadop(pc, NULL, 0, 0, tlod, tlod, 0x55);
+ emit_branch(pc, 0, 2)->param.index = target;
- /* XXX: for some reason the blob sometimes uses MAD:
- * emit_mad(pc, t[c], src[0][c], t[3], t[3])
- * pc->p->exec_tail->inst[1] |= 0x080fc000;
- */
+ for (i = 1; i < 4; ++i) {
+ emit_quadop(pc, NULL, 0, i, tlod, tlod, 0x55);
+ emit_branch(pc, 0, 2)->param.index = target;
+ }
+
+ emit_mov(pc, tlod, src); /* target */
+ emit(pc, tex); /* texlod */
+
+ join_at->param.index = target + 2 * 2;
+ JOIN_ON(emit_nop(pc)); /* join _after_ tex */
+}
+
+static void
+emit_texbias_sequence(struct nv50_pc *pc, struct nv50_reg *t[4], unsigned arg,
+ struct nv50_program_exec *tex)
+{
+ struct nv50_program_exec *e;
+ struct nv50_reg imm_1248, *t123[4][4], *r_bits = alloc_temp(pc, NULL);
+ int r_pred = 0;
+ unsigned n, c, i, cc[4] = { 0x0a, 0x13, 0x11, 0x10 };
+
+ pc->allow32 = FALSE;
+ ctor_reg(&imm_1248, P_IMMD, -1, ctor_immd_4u32(pc, 1, 2, 4, 8) * 4);
+
+ /* Subtract bias value of thread i from bias values of each thread,
+ * store result in r_pred, and set bit i in r_bits if result was 0.
+ */
+ assert(arg < 4);
+ for (i = 0; i < 4; ++i, ++imm_1248.hw) {
+ emit_quadop(pc, NULL, r_pred, i, t[arg], t[arg], 0x55);
+ emit_mov(pc, r_bits, &imm_1248);
+ set_pred(pc, 2, r_pred, pc->p->exec_tail);
+ }
+ emit_mov_to_pred(pc, r_pred, r_bits);
+
+ /* The lanes of a quad are now grouped by the bit in r_pred they have
+ * set. Put the input values for TEX into a new register set for each
+ * group and execute TEX only for a specific group.
+ * We cannot use the same register set for each group because we need
+ * the derivatives, which are implicitly calculated, to be correct.
+ */
+ for (i = 1; i < 4; ++i) {
+ alloc_temp4(pc, t123[i], 0);
+
+ for (c = 0; c <= arg; ++c)
+ emit_mov(pc, t123[i][c], t[c]);
+
+ *(e = exec(pc)) = *(tex);
+ e->inst[0] &= ~0x01fc;
+ set_dst(pc, t123[i][0], e);
+ set_pred(pc, cc[i], r_pred, e);
+ emit(pc, e);
+ }
+ /* finally TEX on the original regs (where we kept the input) */
+ set_pred(pc, cc[0], r_pred, tex);
+ emit(pc, tex);
+
+ /* put the 3 * n other results into regs for lane 0 */
+ n = popcnt4(((e->inst[0] >> 25) & 0x3) | ((e->inst[1] >> 12) & 0xc));
+ for (i = 1; i < 4; ++i) {
+ for (c = 0; c < n; ++c) {
+ emit_mov(pc, t[c], t123[i][c]);
+ set_pred(pc, cc[i], r_pred, pc->p->exec_tail);
}
- } else {
- for (c = 0; c < dim; c++)
- emit_mov(pc, t[c], src[c]);
+ free_temp4(pc, t123[i]);
}
+ emit_nop(pc);
+ free_temp(pc, r_bits);
+}
+
+static void
+emit_tex(struct nv50_pc *pc, struct nv50_reg **dst, unsigned mask,
+ struct nv50_reg **src, unsigned unit, unsigned type,
+ boolean proj, int bias_lod)
+{
+ struct nv50_reg *t[4];
+ struct nv50_program_exec *e;
+ unsigned c, dim, arg;
+
+ /* t[i] must be within a single 128 bit super-reg */
+ alloc_temp4(pc, t, 0);
+
e = exec(pc);
+ e->inst[0] = 0xf0000000;
set_long(pc, e);
- e->inst[0] |= 0xf0000000;
- e->inst[1] |= 0x00000004;
set_dst(pc, t[0], e);
- e->inst[0] |= (unit << 9);
- if (dim == 2)
- e->inst[0] |= 0x00400000;
- else
- if (dim == 3) {
- e->inst[0] |= 0x00800000;
- if (type == TGSI_TEXTURE_CUBE)
- e->inst[0] |= 0x08000000;
+ /* TIC and TSC binding indices (TSC is ignored as TSC_LINKED = TRUE): */
+ e->inst[0] |= (unit << 9) /* | (unit << 17) */;
+
+ /* live flag (don't set if TEX results affect input to another TEX): */
+ /* e->inst[0] |= 0x00000004; */
+
+ get_tex_dim(type, &dim, &arg);
+
+ if (type == TGSI_TEXTURE_CUBE) {
+ e->inst[0] |= 0x08000000;
+ load_cube_tex_coords(pc, t, src, arg, proj);
+ } else
+ if (proj)
+ load_proj_tex_coords(pc, t, src, dim, arg);
+ else {
+ for (c = 0; c < dim; c++)
+ emit_mov(pc, t[c], src[c]);
+ if (arg != dim) /* depth reference value (always src.z here) */
+ emit_mov(pc, t[dim], src[2]);
}
e->inst[0] |= (mask & 0x3) << 25;
e->inst[1] |= (mask & 0xc) << 12;
- emit(pc, e);
+ if (!bias_lod) {
+ e->inst[0] |= (arg - 1) << 22;
+ emit(pc, e);
+ } else
+ if (bias_lod < 0) {
+ e->inst[0] |= arg << 22;
+ e->inst[1] |= 0x20000000; /* texbias */
+ emit_mov(pc, t[arg], src[3]);
+ emit_texbias_sequence(pc, t, arg, e);
+ } else {
+ e->inst[0] |= arg << 22;
+ e->inst[1] |= 0x40000000; /* texlod */
+ emit_mov(pc, t[arg], src[3]);
+ emit_texlod_sequence(pc, t[arg], src[3], e);
+ }
+
#if 1
c = 0;
if (mask & 1) emit_mov(pc, dst[0], t[c++]);
@@ -1389,46 +1696,14 @@ emit_tex(struct nv50_pc *pc, struct nv50_reg **dst, unsigned mask,
}
static void
-emit_branch(struct nv50_pc *pc, int pred, unsigned cc,
- struct nv50_program_exec **join)
-{
- struct nv50_program_exec *e = exec(pc);
-
- if (join) {
- set_long(pc, e);
- e->inst[0] |= 0xa0000002;
- emit(pc, e);
- *join = e;
- e = exec(pc);
- }
-
- set_long(pc, e);
- e->inst[0] |= 0x10000002;
- if (pred >= 0)
- set_pred(pc, cc, pred, e);
- emit(pc, e);
-}
-
-static void
-emit_nop(struct nv50_pc *pc)
-{
- struct nv50_program_exec *e = exec(pc);
-
- e->inst[0] = 0xf0000000;
- set_long(pc, e);
- e->inst[1] = 0xe0000000;
- emit(pc, e);
-}
-
-static void
emit_ddx(struct nv50_pc *pc, struct nv50_reg *dst, struct nv50_reg *src)
{
struct nv50_program_exec *e = exec(pc);
assert(src->type == P_TEMP);
- e->inst[0] = 0xc0140000;
- e->inst[1] = 0x89800000;
+ e->inst[0] = (src->mod & NV50_MOD_NEG) ? 0xc0240000 : 0xc0140000;
+ e->inst[1] = (src->mod & NV50_MOD_NEG) ? 0x86400000 : 0x89800000;
set_long(pc, e);
set_dst(pc, dst, e);
set_src_0(pc, src, e);
@@ -1440,25 +1715,16 @@ emit_ddx(struct nv50_pc *pc, struct nv50_reg *dst, struct nv50_reg *src)
static void
emit_ddy(struct nv50_pc *pc, struct nv50_reg *dst, struct nv50_reg *src)
{
- struct nv50_reg *r = src;
struct nv50_program_exec *e = exec(pc);
assert(src->type == P_TEMP);
- if (!(src->mod & NV50_MOD_NEG)) { /* ! double negation */
- r = alloc_temp(pc, NULL);
- emit_neg(pc, r, src);
- }
-
- e->inst[0] = 0xc0150000;
- e->inst[1] = 0x8a400000;
+ e->inst[0] = (src->mod & NV50_MOD_NEG) ? 0xc0250000 : 0xc0150000;
+ e->inst[1] = (src->mod & NV50_MOD_NEG) ? 0x85800000 : 0x8a400000;
set_long(pc, e);
set_dst(pc, dst, e);
- set_src_0(pc, r, e);
- set_src_2(pc, r, e);
-
- if (r != src)
- free_temp(pc, r);
+ set_src_0(pc, src, e);
+ set_src_2(pc, src, e);
emit(pc, e);
}
@@ -1515,9 +1781,8 @@ convert_to_long(struct nv50_pc *pc, struct nv50_program_exec *e)
static boolean
negate_supported(const struct tgsi_full_instruction *insn, int i)
{
- int s;
-
switch (insn->Instruction.Opcode) {
+ case TGSI_OPCODE_DDX:
case TGSI_OPCODE_DDY:
case TGSI_OPCODE_DP3:
case TGSI_OPCODE_DP4:
@@ -1526,29 +1791,14 @@ negate_supported(const struct tgsi_full_instruction *insn, int i)
case TGSI_OPCODE_ADD:
case TGSI_OPCODE_SUB:
case TGSI_OPCODE_MAD:
- break;
+ return TRUE;
case TGSI_OPCODE_POW:
if (i == 1)
- break;
+ return TRUE;
return FALSE;
default:
return FALSE;
}
-
- /* Watch out for possible multiple uses of an nv50_reg, we
- * can't use nv50_reg::neg in these cases.
- */
- for (s = 0; s < insn->Instruction.NumSrcRegs; ++s) {
- if (s == i)
- continue;
- if ((insn->Src[s].Register.Index ==
- insn->Src[i].Register.Index) &&
- (insn->Src[s].Register.File ==
- insn->Src[i].Register.File))
- return FALSE;
- }
-
- return TRUE;
}
/* Return a read mask for source registers deduced from opcode & write mask. */
@@ -1576,9 +1826,13 @@ nv50_tgsi_src_mask(const struct tgsi_full_instruction *insn, int c)
case TGSI_OPCODE_RSQ:
case TGSI_OPCODE_SCS:
return 0x1;
+ case TGSI_OPCODE_IF:
+ return 0x1;
case TGSI_OPCODE_LIT:
return 0xb;
case TGSI_OPCODE_TEX:
+ case TGSI_OPCODE_TXB:
+ case TGSI_OPCODE_TXL:
case TGSI_OPCODE_TXP:
{
const struct tgsi_instruction_texture *tex;
@@ -1587,13 +1841,17 @@ nv50_tgsi_src_mask(const struct tgsi_full_instruction *insn, int c)
tex = &insn->Texture;
mask = 0x7;
- if (insn->Instruction.Opcode == TGSI_OPCODE_TXP)
- mask |= 0x8;
+ if (insn->Instruction.Opcode != TGSI_OPCODE_TEX &&
+ insn->Instruction.Opcode != TGSI_OPCODE_TXD)
+ mask |= 0x8; /* bias, lod or proj */
switch (tex->Texture) {
case TGSI_TEXTURE_1D:
mask &= 0x9;
break;
+ case TGSI_TEXTURE_SHADOW1D:
+ mask &= 0x5;
+ break;
case TGSI_TEXTURE_2D:
mask &= 0xb;
break;
@@ -1676,7 +1934,7 @@ tgsi_src(struct nv50_pc *pc, int chan, const struct tgsi_full_src_register *src,
/* Indicate indirection by setting r->acc < 0 and
* use the index field to select the address reg.
*/
- r = MALLOC_STRUCT(nv50_reg);
+ r = reg_instance(pc, NULL);
swz = tgsi_util_get_src_register_swizzle(
&src->Indirect, 0);
ctor_reg(r, P_CONST,
@@ -1730,6 +1988,8 @@ tgsi_src(struct nv50_pc *pc, int chan, const struct tgsi_full_src_register *src,
break;
}
+ if (r && r->acc >= 0 && r != temp)
+ return reg_instance(pc, r);
return r;
}
@@ -1785,6 +2045,8 @@ nv50_tgsi_dst_revdep(unsigned op, int s, int c)
case TGSI_OPCODE_LIT:
case TGSI_OPCODE_SCS:
case TGSI_OPCODE_TEX:
+ case TGSI_OPCODE_TXB:
+ case TGSI_OPCODE_TXL:
case TGSI_OPCODE_TXP:
/* these take care of dangerous swizzles themselves */
return 0x0;
@@ -1826,28 +2088,43 @@ nv50_kill_branch(struct nv50_pc *pc)
*/
if (has_pred(pc->if_insn[lvl], 0xf))
return FALSE;
- assert(pc->if_insn[lvl] && pc->br_join[lvl]);
+ assert(pc->if_insn[lvl] && pc->if_join[lvl]);
- /* We'll use the exec allocated for JOIN_AT (as we can't easily
- * update prev's next); if exec_tail is BRK, update the pointer.
+ /* We'll use the exec allocated for JOIN_AT (we can't easily
+ * access nv50_program_exec's prev).
*/
- if (pc->loop_lvl && pc->br_loop[pc->loop_lvl - 1] == pc->p->exec_tail)
- pc->br_loop[pc->loop_lvl - 1] = pc->br_join[lvl];
-
pc->p->exec_size -= 4; /* remove JOIN_AT and BRA */
- *pc->br_join[lvl] = *pc->p->exec_tail;
+ *pc->if_join[lvl] = *pc->p->exec_tail;
FREE(pc->if_insn[lvl]);
FREE(pc->p->exec_tail);
- pc->p->exec_tail = pc->br_join[lvl];
+ pc->p->exec_tail = pc->if_join[lvl];
pc->p->exec_tail->next = NULL;
set_pred(pc, 0xd, 0, pc->p->exec_tail);
return TRUE;
}
+static void
+nv50_fp_move_results(struct nv50_pc *pc)
+{
+ struct nv50_reg reg;
+ unsigned i;
+
+ ctor_reg(&reg, P_TEMP, -1, -1);
+
+ for (i = 0; i < pc->result_nr * 4; ++i) {
+ if (pc->result[i].rhw < 0 || pc->result[i].hw < 0)
+ continue;
+ if (pc->result[i].rhw != pc->result[i].hw) {
+ reg.hw = pc->result[i].rhw;
+ emit_mov(pc, &reg, &pc->result[i]);
+ }
+ }
+}
+
static boolean
nv50_program_tx_insn(struct nv50_pc *pc,
const struct tgsi_full_instruction *inst)
@@ -1934,13 +2211,13 @@ nv50_program_tx_insn(struct nv50_pc *pc,
emit_arl(pc, dst[0], temp, 4);
break;
case TGSI_OPCODE_BGNLOOP:
+ pc->loop_brka[pc->loop_lvl] = emit_breakaddr(pc);
pc->loop_pos[pc->loop_lvl++] = pc->p->exec_size;
terminate_mbb(pc);
break;
case TGSI_OPCODE_BRK:
- emit_branch(pc, -1, 0, NULL);
assert(pc->loop_lvl > 0);
- pc->br_loop[pc->loop_lvl - 1] = pc->p->exec_tail;
+ emit_break(pc, -1, 0);
break;
case TGSI_OPCODE_CEIL:
for (c = 0; c < 4; c++) {
@@ -2016,7 +2293,7 @@ nv50_program_tx_insn(struct nv50_pc *pc,
emit_mov_immdval(pc, dst[0], 1.0f);
break;
case TGSI_OPCODE_ELSE:
- emit_branch(pc, -1, 0, NULL);
+ emit_branch(pc, -1, 0);
pc->if_insn[--pc->if_lvl]->param.index = pc->p->exec_size;
pc->if_insn[pc->if_lvl++] = pc->p->exec_tail;
terminate_mbb(pc);
@@ -2028,21 +2305,20 @@ nv50_program_tx_insn(struct nv50_pc *pc,
if (nv50_kill_branch(pc) == TRUE)
break;
- if (pc->br_join[pc->if_lvl]) {
- pc->br_join[pc->if_lvl]->param.index = pc->p->exec_size;
- pc->br_join[pc->if_lvl] = NULL;
+ if (pc->if_join[pc->if_lvl]) {
+ pc->if_join[pc->if_lvl]->param.index = pc->p->exec_size;
+ pc->if_join[pc->if_lvl] = NULL;
}
terminate_mbb(pc);
/* emit a NOP as join point, we could set it on the next
* one, but would have to make sure it is long and !immd
*/
- emit_nop(pc);
- pc->p->exec_tail->inst[1] |= 2;
+ JOIN_ON(emit_nop(pc));
break;
case TGSI_OPCODE_ENDLOOP:
- emit_branch(pc, -1, 0, NULL);
- pc->p->exec_tail->param.index = pc->loop_pos[--pc->loop_lvl];
- pc->br_loop[pc->loop_lvl]->param.index = pc->p->exec_size;
+ emit_branch(pc, -1, 0)->param.index =
+ pc->loop_pos[--pc->loop_lvl];
+ pc->loop_brka[pc->loop_lvl]->param.index = pc->p->exec_size;
terminate_mbb(pc);
break;
case TGSI_OPCODE_EX2:
@@ -2066,21 +2342,23 @@ nv50_program_tx_insn(struct nv50_pc *pc,
}
break;
case TGSI_OPCODE_IF:
- /* emitting a join_at may not be necessary */
- assert(pc->if_lvl < MAX_IF_DEPTH);
- /* set_pred_wr(pc, 1, 0, pc->if_cond); */
+ assert(pc->if_lvl < NV50_MAX_COND_NESTING);
emit_cvt(pc, NULL, src[0][0], 0, CVTOP_ABS | CVTOP_RN,
CVT_F32_F32);
- emit_branch(pc, 0, 2, &pc->br_join[pc->if_lvl]);
- pc->if_insn[pc->if_lvl++] = pc->p->exec_tail;
+ pc->if_join[pc->if_lvl] = emit_joinat(pc);
+ pc->if_insn[pc->if_lvl++] = emit_branch(pc, 0, 2);;
terminate_mbb(pc);
break;
case TGSI_OPCODE_KIL:
+ assert(src[0][0] && src[0][1] && src[0][2] && src[0][3]);
emit_kil(pc, src[0][0]);
emit_kil(pc, src[0][1]);
emit_kil(pc, src[0][2]);
emit_kil(pc, src[0][3]);
break;
+ case TGSI_OPCODE_KILP:
+ emit_kil(pc, NULL);
+ break;
case TGSI_OPCODE_LIT:
emit_lit(pc, &dst[0], mask, &src[0][0]);
break;
@@ -2137,6 +2415,11 @@ nv50_program_tx_insn(struct nv50_pc *pc,
case TGSI_OPCODE_RCP:
emit_flop(pc, 0, brdc, src[0][0]);
break;
+ case TGSI_OPCODE_RET:
+ if (pc->p->type == PIPE_SHADER_FRAGMENT)
+ nv50_fp_move_results(pc);
+ emit_ret(pc, -1, 0);
+ break;
case TGSI_OPCODE_RSQ:
emit_flop(pc, 2, brdc, src[0][0]);
break;
@@ -2187,11 +2470,19 @@ nv50_program_tx_insn(struct nv50_pc *pc,
break;
case TGSI_OPCODE_TEX:
emit_tex(pc, dst, mask, src[0], unit,
- inst->Texture.Texture, FALSE);
+ inst->Texture.Texture, FALSE, 0);
+ break;
+ case TGSI_OPCODE_TXB:
+ emit_tex(pc, dst, mask, src[0], unit,
+ inst->Texture.Texture, FALSE, -1);
+ break;
+ case TGSI_OPCODE_TXL:
+ emit_tex(pc, dst, mask, src[0], unit,
+ inst->Texture.Texture, FALSE, 1);
break;
case TGSI_OPCODE_TXP:
emit_tex(pc, dst, mask, src[0], unit,
- inst->Texture.Texture, TRUE);
+ inst->Texture.Texture, TRUE, 0);
break;
case TGSI_OPCODE_TRUNC:
for (c = 0; c < 4; c++) {
@@ -2245,20 +2536,9 @@ nv50_program_tx_insn(struct nv50_pc *pc,
}
}
- for (i = 0; i < inst->Instruction.NumSrcRegs; i++) {
- for (c = 0; c < 4; c++) {
- if (!src[i][c])
- continue;
- src[i][c]->mod = 0;
- if (src[i][c]->index == -1 && src[i][c]->type == P_IMMD)
- FREE(src[i][c]);
- else
- if (src[i][c]->acc < 0 && src[i][c]->type == P_CONST)
- FREE(src[i][c]); /* indirect constant */
- }
- }
-
kill_temp_temp(pc);
+ pc->reg_instance_nr = 0;
+
return TRUE;
}
@@ -2541,10 +2821,10 @@ nv50_program_tx_prep(struct nv50_pc *pc)
const struct tgsi_full_immediate *imm =
&tp.FullToken.FullImmediate;
- ctor_immd(pc, imm->u[0].Float,
- imm->u[1].Float,
- imm->u[2].Float,
- imm->u[3].Float);
+ ctor_immd_4f32(pc, imm->u[0].Float,
+ imm->u[1].Float,
+ imm->u[2].Float,
+ imm->u[3].Float);
}
break;
case TGSI_TOKEN_TYPE_DECLARATION:
@@ -2898,24 +3178,6 @@ ctor_nv50_pc(struct nv50_pc *pc, struct nv50_program *p)
}
static void
-nv50_fp_move_results(struct nv50_pc *pc)
-{
- struct nv50_reg reg;
- unsigned i;
-
- ctor_reg(&reg, P_TEMP, -1, -1);
-
- for (i = 0; i < pc->result_nr * 4; ++i) {
- if (pc->result[i].rhw < 0 || pc->result[i].hw < 0)
- continue;
- if (pc->result[i].rhw != pc->result[i].hw) {
- reg.hw = pc->result[i].rhw;
- emit_mov(pc, &reg, &pc->result[i]);
- }
- }
-}
-
-static void
nv50_program_fixup_insns(struct nv50_pc *pc)
{
struct nv50_program_exec *e, **bra_list;
@@ -3024,7 +3286,7 @@ nv50_program_validate(struct nv50_context *nv50, struct nv50_program *p)
}
static void
-nv50_program_upload_data(struct nv50_context *nv50, float *map,
+nv50_program_upload_data(struct nv50_context *nv50, uint32_t *map,
unsigned start, unsigned count, unsigned cbuf)
{
struct nouveau_channel *chan = nv50->screen->base.channel;
@@ -3072,8 +3334,8 @@ nv50_program_validate_data(struct nv50_context *nv50, struct nv50_program *p)
if (p->param_nr) {
unsigned cb;
- float *map = pipe_buffer_map(pscreen, nv50->constbuf[p->type],
- PIPE_BUFFER_USAGE_CPU_READ);
+ uint32_t *map = pipe_buffer_map(pscreen, nv50->constbuf[p->type],
+ PIPE_BUFFER_USAGE_CPU_READ);
if (p->type == PIPE_SHADER_VERTEX)
cb = NV50_CB_PVP;
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-13 07:01:45 +0000