*/
#include <stdbool.h>
+#include "util/ralloc.h"
+#include "vc4_qir.h"
#include "vc4_qpu.h"
+#define QPU_MUX(mux, muxfield) \
+ QPU_SET_FIELD(mux != QPU_MUX_SMALL_IMM ? mux : QPU_MUX_B, muxfield)
+
static uint64_t
set_src_raddr(uint64_t inst, struct qpu_reg src)
{
if (src.mux == QPU_MUX_A) {
- /* These asserts could be better, checking to be sure we're
- * not overwriting an actual use of a raddr of 0.
- */
- assert(QPU_GET_FIELD(inst, QPU_RADDR_A) == 0 ||
+ assert(QPU_GET_FIELD(inst, QPU_RADDR_A) == QPU_R_NOP ||
QPU_GET_FIELD(inst, QPU_RADDR_A) == src.addr);
- return inst | QPU_SET_FIELD(src.addr, QPU_RADDR_A);
+ return QPU_UPDATE_FIELD(inst, src.addr, QPU_RADDR_A);
}
if (src.mux == QPU_MUX_B) {
- assert(QPU_GET_FIELD(inst, QPU_RADDR_B) == 0 ||
- QPU_GET_FIELD(inst, QPU_RADDR_B) == src.addr);
- return inst | QPU_SET_FIELD(src.addr, QPU_RADDR_B);
+ assert((QPU_GET_FIELD(inst, QPU_RADDR_B) == QPU_R_NOP ||
+ QPU_GET_FIELD(inst, QPU_RADDR_B) == src.addr) &&
+ QPU_GET_FIELD(inst, QPU_SIG) != QPU_SIG_SMALL_IMM);
+ return QPU_UPDATE_FIELD(inst, src.addr, QPU_RADDR_B);
+ }
+
+ if (src.mux == QPU_MUX_SMALL_IMM) {
+ if (QPU_GET_FIELD(inst, QPU_SIG) == QPU_SIG_SMALL_IMM) {
+ assert(QPU_GET_FIELD(inst, QPU_RADDR_B) == src.addr);
+ } else {
+ inst = qpu_set_sig(inst, QPU_SIG_SMALL_IMM);
+ assert(QPU_GET_FIELD(inst, QPU_RADDR_B) == QPU_R_NOP);
+ }
+ return ((inst & ~QPU_RADDR_B_MASK) |
+ QPU_SET_FIELD(src.addr, QPU_RADDR_B));
}
return inst;
/* Note: These field values are actually non-zero */
inst |= QPU_SET_FIELD(QPU_W_NOP, QPU_WADDR_ADD);
inst |= QPU_SET_FIELD(QPU_W_NOP, QPU_WADDR_MUL);
+ inst |= QPU_SET_FIELD(QPU_R_NOP, QPU_RADDR_A);
+ inst |= QPU_SET_FIELD(QPU_R_NOP, QPU_RADDR_B);
inst |= QPU_SET_FIELD(QPU_SIG_NONE, QPU_SIG);
return inst;
{
uint64_t inst = 0;
+ inst |= QPU_SET_FIELD(QPU_SIG_NONE, QPU_SIG);
inst |= QPU_SET_FIELD(QPU_A_OR, QPU_OP_ADD);
+ inst |= QPU_SET_FIELD(QPU_R_NOP, QPU_RADDR_A);
+ inst |= QPU_SET_FIELD(QPU_R_NOP, QPU_RADDR_B);
inst |= qpu_a_dst(dst);
inst |= QPU_SET_FIELD(QPU_COND_ALWAYS, QPU_COND_ADD);
- inst |= QPU_SET_FIELD(src.mux, QPU_ADD_A);
- inst |= QPU_SET_FIELD(src.mux, QPU_ADD_B);
- inst |= set_src_raddr(inst, src);
- inst |= QPU_SET_FIELD(QPU_SIG_NONE, QPU_SIG);
+ inst |= QPU_MUX(src.mux, QPU_ADD_A);
+ inst |= QPU_MUX(src.mux, QPU_ADD_B);
+ inst = set_src_raddr(inst, src);
+ inst |= QPU_SET_FIELD(QPU_W_NOP, QPU_WADDR_MUL);
return inst;
}
{
uint64_t inst = 0;
+ inst |= QPU_SET_FIELD(QPU_SIG_NONE, QPU_SIG);
inst |= QPU_SET_FIELD(QPU_M_V8MIN, QPU_OP_MUL);
+ inst |= QPU_SET_FIELD(QPU_R_NOP, QPU_RADDR_A);
+ inst |= QPU_SET_FIELD(QPU_R_NOP, QPU_RADDR_B);
inst |= qpu_m_dst(dst);
inst |= QPU_SET_FIELD(QPU_COND_ALWAYS, QPU_COND_MUL);
- inst |= QPU_SET_FIELD(src.mux, QPU_MUL_A);
- inst |= QPU_SET_FIELD(src.mux, QPU_MUL_B);
- inst |= set_src_raddr(inst, src);
- inst |= QPU_SET_FIELD(QPU_SIG_NONE, QPU_SIG);
+ inst |= QPU_MUX(src.mux, QPU_MUL_A);
+ inst |= QPU_MUX(src.mux, QPU_MUL_B);
+ inst = set_src_raddr(inst, src);
+ inst |= QPU_SET_FIELD(QPU_W_NOP, QPU_WADDR_ADD);
return inst;
}
uint64_t inst = 0;
inst |= qpu_a_dst(dst);
- inst |= qpu_m_dst(qpu_rb(QPU_W_NOP));
+ inst |= QPU_SET_FIELD(QPU_W_NOP, QPU_WADDR_MUL);
inst |= QPU_SET_FIELD(QPU_COND_ALWAYS, QPU_COND_ADD);
inst |= QPU_SET_FIELD(QPU_COND_ALWAYS, QPU_COND_MUL);
inst |= QPU_SET_FIELD(QPU_SIG_LOAD_IMM, QPU_SIG);
return inst;
}
+uint64_t
+qpu_load_imm_u2(struct qpu_reg dst, uint32_t val)
+{
+ return qpu_load_imm_ui(dst, val) | QPU_SET_FIELD(QPU_LOAD_IMM_MODE_U2,
+ QPU_LOAD_IMM_MODE);
+}
+
+uint64_t
+qpu_load_imm_i2(struct qpu_reg dst, uint32_t val)
+{
+ return qpu_load_imm_ui(dst, val) | QPU_SET_FIELD(QPU_LOAD_IMM_MODE_I2,
+ QPU_LOAD_IMM_MODE);
+}
+
+uint64_t
+qpu_branch(uint32_t cond, uint32_t target)
+{
+ uint64_t inst = 0;
+
+ inst |= qpu_a_dst(qpu_ra(QPU_W_NOP));
+ inst |= qpu_m_dst(qpu_rb(QPU_W_NOP));
+ inst |= QPU_SET_FIELD(cond, QPU_BRANCH_COND);
+ inst |= QPU_SET_FIELD(QPU_SIG_BRANCH, QPU_SIG);
+ inst |= QPU_SET_FIELD(target, QPU_BRANCH_TARGET);
+
+ return inst;
+}
+
uint64_t
qpu_a_alu2(enum qpu_op_add op,
struct qpu_reg dst, struct qpu_reg src0, struct qpu_reg src1)
{
uint64_t inst = 0;
+ inst |= QPU_SET_FIELD(QPU_SIG_NONE, QPU_SIG);
inst |= QPU_SET_FIELD(op, QPU_OP_ADD);
+ inst |= QPU_SET_FIELD(QPU_R_NOP, QPU_RADDR_A);
+ inst |= QPU_SET_FIELD(QPU_R_NOP, QPU_RADDR_B);
inst |= qpu_a_dst(dst);
inst |= QPU_SET_FIELD(QPU_COND_ALWAYS, QPU_COND_ADD);
- inst |= QPU_SET_FIELD(src0.mux, QPU_ADD_A);
- inst |= set_src_raddr(inst, src0);
- inst |= QPU_SET_FIELD(src1.mux, QPU_ADD_B);
- inst |= set_src_raddr(inst, src1);
- inst |= QPU_SET_FIELD(QPU_SIG_NONE, QPU_SIG);
+ inst |= QPU_MUX(src0.mux, QPU_ADD_A);
+ inst = set_src_raddr(inst, src0);
+ inst |= QPU_MUX(src1.mux, QPU_ADD_B);
+ inst = set_src_raddr(inst, src1);
+ inst |= QPU_SET_FIELD(QPU_W_NOP, QPU_WADDR_MUL);
return inst;
}
{
uint64_t inst = 0;
- set_src_raddr(inst, src0);
- set_src_raddr(inst, src1);
-
+ inst |= QPU_SET_FIELD(QPU_SIG_NONE, QPU_SIG);
inst |= QPU_SET_FIELD(op, QPU_OP_MUL);
+ inst |= QPU_SET_FIELD(QPU_R_NOP, QPU_RADDR_A);
+ inst |= QPU_SET_FIELD(QPU_R_NOP, QPU_RADDR_B);
inst |= qpu_m_dst(dst);
inst |= QPU_SET_FIELD(QPU_COND_ALWAYS, QPU_COND_MUL);
- inst |= QPU_SET_FIELD(src0.mux, QPU_MUL_A);
- inst |= set_src_raddr(inst, src0);
- inst |= QPU_SET_FIELD(src1.mux, QPU_MUL_B);
- inst |= set_src_raddr(inst, src1);
- inst |= QPU_SET_FIELD(QPU_SIG_NONE, QPU_SIG);
+ inst |= QPU_MUX(src0.mux, QPU_MUL_A);
+ inst = set_src_raddr(inst, src0);
+ inst |= QPU_MUX(src1.mux, QPU_MUL_B);
+ inst = set_src_raddr(inst, src1);
+ inst |= QPU_SET_FIELD(QPU_W_NOP, QPU_WADDR_ADD);
return inst;
}
uint64_t
-qpu_inst(uint64_t add, uint64_t mul)
+qpu_m_rot(struct qpu_reg dst, struct qpu_reg src0, int rot)
+{
+ uint64_t inst = 0;
+ inst = qpu_m_alu2(QPU_M_V8MIN, dst, src0, src0);
+
+ inst = QPU_UPDATE_FIELD(inst, QPU_SIG_SMALL_IMM, QPU_SIG);
+ inst = QPU_UPDATE_FIELD(inst, QPU_SMALL_IMM_MUL_ROT + rot,
+ QPU_SMALL_IMM);
+
+ return inst;
+}
+
+static bool
+merge_fields(uint64_t *merge,
+ uint64_t a, uint64_t b,
+ uint64_t mask, uint64_t ignore)
+{
+ if ((a & mask) == ignore) {
+ *merge = (*merge & ~mask) | (b & mask);
+ } else if ((b & mask) == ignore) {
+ *merge = (*merge & ~mask) | (a & mask);
+ } else {
+ if ((a & mask) != (b & mask))
+ return false;
+ }
+
+ return true;
+}
+
+int
+qpu_num_sf_accesses(uint64_t inst)
+{
+ int accesses = 0;
+ static const uint32_t specials[] = {
+ QPU_W_TLB_COLOR_MS,
+ QPU_W_TLB_COLOR_ALL,
+ QPU_W_TLB_Z,
+ QPU_W_TMU0_S,
+ QPU_W_TMU0_T,
+ QPU_W_TMU0_R,
+ QPU_W_TMU0_B,
+ QPU_W_TMU1_S,
+ QPU_W_TMU1_T,
+ QPU_W_TMU1_R,
+ QPU_W_TMU1_B,
+ QPU_W_SFU_RECIP,
+ QPU_W_SFU_RECIPSQRT,
+ QPU_W_SFU_EXP,
+ QPU_W_SFU_LOG,
+ };
+ uint32_t waddr_add = QPU_GET_FIELD(inst, QPU_WADDR_ADD);
+ uint32_t waddr_mul = QPU_GET_FIELD(inst, QPU_WADDR_MUL);
+ uint32_t raddr_a = QPU_GET_FIELD(inst, QPU_RADDR_A);
+ uint32_t raddr_b = QPU_GET_FIELD(inst, QPU_RADDR_B);
+
+ for (int j = 0; j < ARRAY_SIZE(specials); j++) {
+ if (waddr_add == specials[j])
+ accesses++;
+ if (waddr_mul == specials[j])
+ accesses++;
+ }
+
+ if (raddr_a == QPU_R_MUTEX_ACQUIRE)
+ accesses++;
+ if (raddr_b == QPU_R_MUTEX_ACQUIRE &&
+ QPU_GET_FIELD(inst, QPU_SIG) != QPU_SIG_SMALL_IMM)
+ accesses++;
+
+ /* XXX: semaphore, combined color read/write? */
+ switch (QPU_GET_FIELD(inst, QPU_SIG)) {
+ case QPU_SIG_COLOR_LOAD:
+ case QPU_SIG_COLOR_LOAD_END:
+ case QPU_SIG_LOAD_TMU0:
+ case QPU_SIG_LOAD_TMU1:
+ accesses++;
+ }
+
+ return accesses;
+}
+
+static bool
+qpu_waddr_ignores_ws(uint32_t waddr)
+{
+ switch(waddr) {
+ case QPU_W_ACC0:
+ case QPU_W_ACC1:
+ case QPU_W_ACC2:
+ case QPU_W_ACC3:
+ case QPU_W_NOP:
+ case QPU_W_TLB_Z:
+ case QPU_W_TLB_COLOR_MS:
+ case QPU_W_TLB_COLOR_ALL:
+ case QPU_W_TLB_ALPHA_MASK:
+ case QPU_W_VPM:
+ case QPU_W_SFU_RECIP:
+ case QPU_W_SFU_RECIPSQRT:
+ case QPU_W_SFU_EXP:
+ case QPU_W_SFU_LOG:
+ case QPU_W_TMU0_S:
+ case QPU_W_TMU0_T:
+ case QPU_W_TMU0_R:
+ case QPU_W_TMU0_B:
+ case QPU_W_TMU1_S:
+ case QPU_W_TMU1_T:
+ case QPU_W_TMU1_R:
+ case QPU_W_TMU1_B:
+ return true;
+ }
+
+ return false;
+}
+
+static void
+swap_ra_file_mux_helper(uint64_t *merge, uint64_t *a, uint32_t mux_shift)
+{
+ uint64_t mux_mask = (uint64_t)0x7 << mux_shift;
+ uint64_t mux_a_val = (uint64_t)QPU_MUX_A << mux_shift;
+ uint64_t mux_b_val = (uint64_t)QPU_MUX_B << mux_shift;
+
+ if ((*a & mux_mask) == mux_a_val) {
+ *a = (*a & ~mux_mask) | mux_b_val;
+ *merge = (*merge & ~mux_mask) | mux_b_val;
+ }
+}
+
+static bool
+try_swap_ra_file(uint64_t *merge, uint64_t *a, uint64_t *b)
+{
+ uint32_t raddr_a_a = QPU_GET_FIELD(*a, QPU_RADDR_A);
+ uint32_t raddr_a_b = QPU_GET_FIELD(*a, QPU_RADDR_B);
+ uint32_t raddr_b_a = QPU_GET_FIELD(*b, QPU_RADDR_A);
+ uint32_t raddr_b_b = QPU_GET_FIELD(*b, QPU_RADDR_B);
+
+ if (raddr_a_b != QPU_R_NOP)
+ return false;
+
+ switch (raddr_a_a) {
+ case QPU_R_UNIF:
+ case QPU_R_VARY:
+ break;
+ default:
+ return false;
+ }
+
+ if (!(*merge & QPU_PM) &&
+ QPU_GET_FIELD(*merge, QPU_UNPACK) != QPU_UNPACK_NOP) {
+ return false;
+ }
+
+ if (raddr_b_b != QPU_R_NOP &&
+ raddr_b_b != raddr_a_a)
+ return false;
+
+ /* Move raddr A to B in instruction a. */
+ *a = (*a & ~QPU_RADDR_A_MASK) | QPU_SET_FIELD(QPU_R_NOP, QPU_RADDR_A);
+ *a = (*a & ~QPU_RADDR_B_MASK) | QPU_SET_FIELD(raddr_a_a, QPU_RADDR_B);
+ *merge = QPU_UPDATE_FIELD(*merge, raddr_b_a, QPU_RADDR_A);
+ *merge = QPU_UPDATE_FIELD(*merge, raddr_a_a, QPU_RADDR_B);
+ swap_ra_file_mux_helper(merge, a, QPU_ADD_A_SHIFT);
+ swap_ra_file_mux_helper(merge, a, QPU_ADD_B_SHIFT);
+ swap_ra_file_mux_helper(merge, a, QPU_MUL_A_SHIFT);
+ swap_ra_file_mux_helper(merge, a, QPU_MUL_B_SHIFT);
+
+ return true;
+}
+
+static bool
+convert_mov(uint64_t *inst)
+{
+ uint32_t add_a = QPU_GET_FIELD(*inst, QPU_ADD_A);
+ uint32_t waddr_add = QPU_GET_FIELD(*inst, QPU_WADDR_ADD);
+ uint32_t cond_add = QPU_GET_FIELD(*inst, QPU_COND_ADD);
+
+ /* Is it a MOV? */
+ if (QPU_GET_FIELD(*inst, QPU_OP_ADD) != QPU_A_OR ||
+ (add_a != QPU_GET_FIELD(*inst, QPU_ADD_B))) {
+ return false;
+ }
+
+ if (QPU_GET_FIELD(*inst, QPU_SIG) != QPU_SIG_NONE)
+ return false;
+
+ /* We could maybe support this in the .8888 and .8a-.8d cases. */
+ if (*inst & QPU_PM)
+ return false;
+
+ *inst = QPU_UPDATE_FIELD(*inst, QPU_A_NOP, QPU_OP_ADD);
+ *inst = QPU_UPDATE_FIELD(*inst, QPU_M_V8MIN, QPU_OP_MUL);
+
+ *inst = QPU_UPDATE_FIELD(*inst, add_a, QPU_MUL_A);
+ *inst = QPU_UPDATE_FIELD(*inst, add_a, QPU_MUL_B);
+ *inst = QPU_UPDATE_FIELD(*inst, QPU_MUX_R0, QPU_ADD_A);
+ *inst = QPU_UPDATE_FIELD(*inst, QPU_MUX_R0, QPU_ADD_B);
+
+ *inst = QPU_UPDATE_FIELD(*inst, waddr_add, QPU_WADDR_MUL);
+ *inst = QPU_UPDATE_FIELD(*inst, QPU_W_NOP, QPU_WADDR_ADD);
+
+ *inst = QPU_UPDATE_FIELD(*inst, cond_add, QPU_COND_MUL);
+ *inst = QPU_UPDATE_FIELD(*inst, QPU_COND_NEVER, QPU_COND_ADD);
+
+ if (!qpu_waddr_ignores_ws(waddr_add))
+ *inst ^= QPU_WS;
+
+ return true;
+}
+
+static bool
+writes_a_file(uint64_t inst)
+{
+ if (!(inst & QPU_WS))
+ return QPU_GET_FIELD(inst, QPU_WADDR_ADD) < 32;
+ else
+ return QPU_GET_FIELD(inst, QPU_WADDR_MUL) < 32;
+}
+
+static bool
+reads_r4(uint64_t inst)
+{
+ return (QPU_GET_FIELD(inst, QPU_ADD_A) == QPU_MUX_R4 ||
+ QPU_GET_FIELD(inst, QPU_ADD_B) == QPU_MUX_R4 ||
+ QPU_GET_FIELD(inst, QPU_MUL_A) == QPU_MUX_R4 ||
+ QPU_GET_FIELD(inst, QPU_MUL_B) == QPU_MUX_R4);
+}
+
+uint64_t
+qpu_merge_inst(uint64_t a, uint64_t b)
{
- uint64_t merge = ((add & ~QPU_WADDR_MUL_MASK) |
- (mul & ~QPU_WADDR_ADD_MASK));
+ uint64_t merge = a | b;
+ bool ok = true;
+ uint32_t a_sig = QPU_GET_FIELD(a, QPU_SIG);
+ uint32_t b_sig = QPU_GET_FIELD(b, QPU_SIG);
+
+ if (QPU_GET_FIELD(a, QPU_OP_ADD) != QPU_A_NOP &&
+ QPU_GET_FIELD(b, QPU_OP_ADD) != QPU_A_NOP) {
+ if (QPU_GET_FIELD(a, QPU_OP_MUL) != QPU_M_NOP ||
+ QPU_GET_FIELD(b, QPU_OP_MUL) != QPU_M_NOP ||
+ !(convert_mov(&a) || convert_mov(&b))) {
+ return 0;
+ } else {
+ merge = a | b;
+ }
+ }
+
+ if (QPU_GET_FIELD(a, QPU_OP_MUL) != QPU_M_NOP &&
+ QPU_GET_FIELD(b, QPU_OP_MUL) != QPU_M_NOP)
+ return 0;
+
+ if (qpu_num_sf_accesses(a) && qpu_num_sf_accesses(b))
+ return 0;
+
+ if (a_sig == QPU_SIG_LOAD_IMM ||
+ b_sig == QPU_SIG_LOAD_IMM ||
+ a_sig == QPU_SIG_SMALL_IMM ||
+ b_sig == QPU_SIG_SMALL_IMM ||
+ a_sig == QPU_SIG_BRANCH ||
+ b_sig == QPU_SIG_BRANCH) {
+ return 0;
+ }
+
+ ok = ok && merge_fields(&merge, a, b, QPU_SIG_MASK,
+ QPU_SET_FIELD(QPU_SIG_NONE, QPU_SIG));
- /* If either one has no signal field, then use the other's signal field.
- * (since QPU_SIG_NONE != 0).
+ /* Misc fields that have to match exactly. */
+ ok = ok && merge_fields(&merge, a, b, QPU_SF, ~0);
+
+ if (!merge_fields(&merge, a, b, QPU_RADDR_A_MASK,
+ QPU_SET_FIELD(QPU_R_NOP, QPU_RADDR_A))) {
+ /* Since we tend to use regfile A by default both for register
+ * allocation and for our special values (uniforms and
+ * varyings), try swapping uniforms and varyings to regfile B
+ * to resolve raddr A conflicts.
+ */
+ if (!try_swap_ra_file(&merge, &a, &b) &&
+ !try_swap_ra_file(&merge, &b, &a)) {
+ return 0;
+ }
+ }
+
+ ok = ok && merge_fields(&merge, a, b, QPU_RADDR_B_MASK,
+ QPU_SET_FIELD(QPU_R_NOP, QPU_RADDR_B));
+
+ ok = ok && merge_fields(&merge, a, b, QPU_WADDR_ADD_MASK,
+ QPU_SET_FIELD(QPU_W_NOP, QPU_WADDR_ADD));
+ ok = ok && merge_fields(&merge, a, b, QPU_WADDR_MUL_MASK,
+ QPU_SET_FIELD(QPU_W_NOP, QPU_WADDR_MUL));
+
+ /* Allow disagreement on WS (swapping A vs B physical reg file as the
+ * destination for ADD/MUL) if one of the original instructions
+ * ignores it (probably because it's just writing to accumulators).
*/
- if (QPU_GET_FIELD(add, QPU_SIG) == QPU_SIG_NONE)
- merge = (merge & ~QPU_SIG_MASK) | (mul & QPU_SIG_MASK);
- else if (QPU_GET_FIELD(mul, QPU_SIG) == QPU_SIG_NONE)
- merge = (merge & ~QPU_SIG_MASK) | (add & QPU_SIG_MASK);
- else {
- assert(QPU_GET_FIELD(add, QPU_SIG) ==
- QPU_GET_FIELD(mul, QPU_SIG));
+ if (qpu_waddr_ignores_ws(QPU_GET_FIELD(a, QPU_WADDR_ADD)) &&
+ qpu_waddr_ignores_ws(QPU_GET_FIELD(a, QPU_WADDR_MUL))) {
+ merge = (merge & ~QPU_WS) | (b & QPU_WS);
+ } else if (qpu_waddr_ignores_ws(QPU_GET_FIELD(b, QPU_WADDR_ADD)) &&
+ qpu_waddr_ignores_ws(QPU_GET_FIELD(b, QPU_WADDR_MUL))) {
+ merge = (merge & ~QPU_WS) | (a & QPU_WS);
+ } else {
+ if ((a & QPU_WS) != (b & QPU_WS))
+ return 0;
+ }
+
+ if (!merge_fields(&merge, a, b, QPU_PM, ~0)) {
+ /* If one instruction has PM bit set and the other not, the
+ * one without PM shouldn't do packing/unpacking, and we
+ * have to make sure non-NOP packing/unpacking from PM
+ * instruction aren't added to it.
+ */
+ uint64_t temp;
+
+ /* Let a be the one with PM bit */
+ if (!(a & QPU_PM)) {
+ temp = a;
+ a = b;
+ b = temp;
+ }
+
+ if ((b & (QPU_PACK_MASK | QPU_UNPACK_MASK)) != 0)
+ return 0;
+
+ if ((a & QPU_PACK_MASK) != 0 &&
+ QPU_GET_FIELD(b, QPU_OP_MUL) != QPU_M_NOP)
+ return 0;
+
+ if ((a & QPU_UNPACK_MASK) != 0 && reads_r4(b))
+ return 0;
+ } else {
+ /* packing: Make sure that non-NOP packs agree, then deal with
+ * special-case failing of adding a non-NOP pack to something
+ * with a NOP pack.
+ */
+ if (!merge_fields(&merge, a, b, QPU_PACK_MASK, 0))
+ return 0;
+ bool new_a_pack = (QPU_GET_FIELD(a, QPU_PACK) !=
+ QPU_GET_FIELD(merge, QPU_PACK));
+ bool new_b_pack = (QPU_GET_FIELD(b, QPU_PACK) !=
+ QPU_GET_FIELD(merge, QPU_PACK));
+ if (!(merge & QPU_PM)) {
+ /* Make sure we're not going to be putting a new
+ * a-file packing on either half.
+ */
+ if (new_a_pack && writes_a_file(a))
+ return 0;
+
+ if (new_b_pack && writes_a_file(b))
+ return 0;
+ } else {
+ /* Make sure we're not going to be putting new MUL
+ * packing oneither half.
+ */
+ if (new_a_pack &&
+ QPU_GET_FIELD(a, QPU_OP_MUL) != QPU_M_NOP)
+ return 0;
+
+ if (new_b_pack &&
+ QPU_GET_FIELD(b, QPU_OP_MUL) != QPU_M_NOP)
+ return 0;
+ }
+
+ /* unpacking: Make sure that non-NOP unpacks agree, then deal
+ * with special-case failing of adding a non-NOP unpack to
+ * something with a NOP unpack.
+ */
+ if (!merge_fields(&merge, a, b, QPU_UNPACK_MASK, 0))
+ return 0;
+ bool new_a_unpack = (QPU_GET_FIELD(a, QPU_UNPACK) !=
+ QPU_GET_FIELD(merge, QPU_UNPACK));
+ bool new_b_unpack = (QPU_GET_FIELD(b, QPU_UNPACK) !=
+ QPU_GET_FIELD(merge, QPU_UNPACK));
+ if (!(merge & QPU_PM)) {
+ /* Make sure we're not going to be putting a new
+ * a-file packing on either half.
+ */
+ if (new_a_unpack &&
+ QPU_GET_FIELD(a, QPU_RADDR_A) != QPU_R_NOP)
+ return 0;
+
+ if (new_b_unpack &&
+ QPU_GET_FIELD(b, QPU_RADDR_A) != QPU_R_NOP)
+ return 0;
+ } else {
+ /* Make sure we're not going to be putting new r4
+ * unpack on either half.
+ */
+ if (new_a_unpack && reads_r4(a))
+ return 0;
+
+ if (new_b_unpack && reads_r4(b))
+ return 0;
+ }
}
- return merge;
+ if (ok)
+ return merge;
+ else
+ return 0;
}
uint64_t
qpu_set_sig(uint64_t inst, uint32_t sig)
{
assert(QPU_GET_FIELD(inst, QPU_SIG) == QPU_SIG_NONE);
- return (inst & ~QPU_SIG_MASK) | QPU_SET_FIELD(sig, QPU_SIG);
+ return QPU_UPDATE_FIELD(inst, sig, QPU_SIG);
}
uint64_t
-qpu_set_cond_add(uint64_t inst, uint32_t sig)
+qpu_set_cond_add(uint64_t inst, uint32_t cond)
{
assert(QPU_GET_FIELD(inst, QPU_COND_ADD) == QPU_COND_ALWAYS);
- return (inst & ~QPU_COND_ADD_MASK) | QPU_SET_FIELD(sig, QPU_COND_ADD);
+ return QPU_UPDATE_FIELD(inst, cond, QPU_COND_ADD);
}
uint64_t
-qpu_set_cond_mul(uint64_t inst, uint32_t sig)
+qpu_set_cond_mul(uint64_t inst, uint32_t cond)
{
assert(QPU_GET_FIELD(inst, QPU_COND_MUL) == QPU_COND_ALWAYS);
- return (inst & ~QPU_COND_MUL_MASK) | QPU_SET_FIELD(sig, QPU_COND_MUL);
+ return QPU_UPDATE_FIELD(inst, cond, QPU_COND_MUL);
+}
+
+bool
+qpu_waddr_is_tlb(uint32_t waddr)
+{
+ switch (waddr) {
+ case QPU_W_TLB_COLOR_ALL:
+ case QPU_W_TLB_COLOR_MS:
+ case QPU_W_TLB_Z:
+ return true;
+ default:
+ return false;
+ }
+}
+
+bool
+qpu_inst_is_tlb(uint64_t inst)
+{
+ uint32_t sig = QPU_GET_FIELD(inst, QPU_SIG);
+
+ return (qpu_waddr_is_tlb(QPU_GET_FIELD(inst, QPU_WADDR_ADD)) ||
+ qpu_waddr_is_tlb(QPU_GET_FIELD(inst, QPU_WADDR_MUL)) ||
+ sig == QPU_SIG_COLOR_LOAD ||
+ sig == QPU_SIG_WAIT_FOR_SCOREBOARD);
+}
+
+/**
+ * Returns the small immediate value to be encoded in to the raddr b field if
+ * the argument can be represented as one, or ~0 otherwise.
+ */
+uint32_t
+qpu_encode_small_immediate(uint32_t i)
+{
+ if (i <= 15)
+ return i;
+ if ((int)i < 0 && (int)i >= -16)
+ return i + 32;
+
+ switch (i) {
+ case 0x3f800000:
+ return 32;
+ case 0x40000000:
+ return 33;
+ case 0x40800000:
+ return 34;
+ case 0x41000000:
+ return 35;
+ case 0x41800000:
+ return 36;
+ case 0x42000000:
+ return 37;
+ case 0x42800000:
+ return 38;
+ case 0x43000000:
+ return 39;
+ case 0x3b800000:
+ return 40;
+ case 0x3c000000:
+ return 41;
+ case 0x3c800000:
+ return 42;
+ case 0x3d000000:
+ return 43;
+ case 0x3d800000:
+ return 44;
+ case 0x3e000000:
+ return 45;
+ case 0x3e800000:
+ return 46;
+ case 0x3f000000:
+ return 47;
+ }
+
+ return ~0;
}
+void
+qpu_serialize_one_inst(struct vc4_compile *c, uint64_t inst)
+{
+ if (c->qpu_inst_count >= c->qpu_inst_size) {
+ c->qpu_inst_size = MAX2(16, c->qpu_inst_size * 2);
+ c->qpu_insts = reralloc(c, c->qpu_insts,
+ uint64_t, c->qpu_inst_size);
+ }
+ c->qpu_insts[c->qpu_inst_count++] = inst;
+}
projects / mesa.git / blobdiff