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pco: experimentally transfer olchk to ops with refs requiring it

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Signed-off-by: Simon Perretta <simon.perretta@imgtec.com>
Acked-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36412>
This commit is contained in:
Simon Perretta 2025-07-02 13:47:07 +01:00 • committed by Marge Bot
parent 297a0c269a
commit 0176d0e4a0
1 changed files with 30 additions and 0 deletions
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30
src/imagination/pco/pco_legalize.c
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@ -17,6 +17,29 @@
#include <stdbool.h>
static inline bool ref_needs_olchk(pco_ref ref)
{
if (!pco_ref_is_reg(ref))
return false;
switch (pco_ref_get_reg_class(ref)) {
case PCO_REG_CLASS_PIXOUT:
return true;
case PCO_REG_CLASS_SPEC:
return ref.val == PCO_SR_OUTPUT_PART ||
(ref.val >= PCO_SR_TILED_LD_COMP0 &&
ref.val <= PCO_SR_TILED_ST_COMP3) ||
(ref.val >= PCO_SR_TILED_LD_COMP4 &&
ref.val <= PCO_SR_TILED_ST_COMP7);
default:
break;
}
return false;
}
/**
* \brief Insert a mov to legalize how a hardware register is referenced.
*
@ -45,6 +68,13 @@ static void insert_mov_ref(pco_instr *instr, pco_ref *ref, bool needs_s124)
else
mov_instr = pco_mbyp(&b, new_ref, *ref, .exec_cnd = exec_cnd);
if (pco_instr_has_olchk(instr) && pco_instr_get_olchk(instr) &&
ref_needs_olchk(*ref)) {
assert(pco_instr_has_olchk(mov_instr));
pco_instr_set_olchk(mov_instr, true);
pco_instr_set_olchk(instr, false);
}
*ref = new_ref;
}