pan/mdg: eliminate references to ins->texture.op

This commit makes the `ins->op` the correct field to use with texture
instructions.

Signed-off-by: Italo Nicola <italonicola@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5933>
diff --git a/src/panfrost/midgard/midgard_compile.c b/src/panfrost/midgard/midgard_compile.c
index 6623fc9..261d3c2 100644
--- a/src/panfrost/midgard/midgard_compile.c
+++ b/src/panfrost/midgard/midgard_compile.c
@@ -1600,9 +1600,8 @@
                 .type = TAG_TEXTURE_4,
                 .dest = ~0,
                 .src = { ~0, ~0, ~0, ~0 },
+                .op = TEXTURE_OP_BARRIER,
                 .texture = {
-                        .op = TEXTURE_OP_BARRIER,
-
                         /* TODO: optimize */
                         .out_of_order = MIDGARD_BARRIER_BUFFER |
                                 MIDGARD_BARRIER_SHARED ,
@@ -2094,8 +2093,8 @@
                 .dest_type = dest_type,
                 .swizzle = SWIZZLE_IDENTITY_4,
                 .outmod = outmod,
+                .op = midgard_texop,
                 .texture = {
-                        .op = midgard_texop,
                         .format = midgard_tex_format(instr->sampler_dim),
                         .texture_handle = texture_index,
                         .sampler_handle = sampler_index,
diff --git a/src/panfrost/midgard/midgard_derivatives.c b/src/panfrost/midgard/midgard_derivatives.c
index 5c01eba..ca31f0a 100644
--- a/src/panfrost/midgard/midgard_derivatives.c
+++ b/src/panfrost/midgard/midgard_derivatives.c
@@ -106,8 +106,8 @@
                 .src = { ~0, nir_src_index(ctx, &instr->src[0].src), ~0, ~0 },
                 .swizzle = SWIZZLE_IDENTITY_4,
                 .src_types = { nir_type_float32, nir_type_float32 },
+                .op = mir_derivative_op(instr->op),
                 .texture = {
-                        .op = mir_derivative_op(instr->op),
                         .format = MALI_TEX_2D,
                         .in_reg_full = 1,
                         .out_full = 1,
@@ -126,7 +126,7 @@
 {
         mir_foreach_instr_in_block_safe(block, ins) {
                 if (ins->type != TAG_TEXTURE_4) continue;
-                if (!OP_IS_DERIVATIVE(ins->texture.op)) continue;
+                if (!OP_IS_DERIVATIVE(ins->op)) continue;
 
                 /* Check if we need to split */
 
diff --git a/src/panfrost/midgard/midgard_emit.c b/src/panfrost/midgard/midgard_emit.c
index 99a26c8..a675aa5 100644
--- a/src/panfrost/midgard/midgard_emit.c
+++ b/src/panfrost/midgard/midgard_emit.c
@@ -487,6 +487,14 @@
         }
 }
 
+static midgard_texture_word
+texture_word_from_instr(midgard_instruction *ins)
+{
+        midgard_texture_word tex = ins->texture;
+        tex.op = ins->op;
+        return tex;
+}
+
 static midgard_vector_alu
 vector_alu_from_instr(midgard_instruction *ins)
 {
@@ -673,7 +681,7 @@
                 ins->texture.next_type = next_tag;
 
                 /* Nothing else to pack for barriers */
-                if (ins->texture.op == TEXTURE_OP_BARRIER) {
+                if (ins->op == TEXTURE_OP_BARRIER) {
                         ins->texture.cont = ins->texture.last = 1;
                         util_dynarray_append(emission, midgard_texture_word, ins->texture);
                         return;
@@ -702,14 +710,15 @@
                 ins->texture.sampler_type = midgard_sampler_type(ins->dest_type);
                 ins->texture.outmod = ins->outmod;
 
-                if (mir_op_computes_derivatives(ctx->stage, ins->texture.op)) {
+                if (mir_op_computes_derivatives(ctx->stage, ins->op)) {
                         ins->texture.cont = !ins->helper_terminate;
                         ins->texture.last = ins->helper_terminate || ins->helper_execute;
                 } else {
                         ins->texture.cont = ins->texture.last = 1;
                 }
 
-                util_dynarray_append(emission, midgard_texture_word, ins->texture);
+                midgard_texture_word texture = texture_word_from_instr(ins);
+                util_dynarray_append(emission, midgard_texture_word, texture);
                 break;
         }
 
diff --git a/src/panfrost/midgard/midgard_helper_invocations.c b/src/panfrost/midgard/midgard_helper_invocations.c
index 6dfb9c0..407de66 100644
--- a/src/panfrost/midgard/midgard_helper_invocations.c
+++ b/src/panfrost/midgard/midgard_helper_invocations.c
@@ -68,7 +68,7 @@
 {
         mir_foreach_instr_in_block(block, ins) {
                 if (ins->type != TAG_TEXTURE_4) continue;
-                if (mir_op_computes_derivatives(stage, ins->texture.op))
+                if (mir_op_computes_derivatives(stage, ins->op))
                         return true;
         }
 
@@ -151,7 +151,7 @@
 
                 mir_foreach_instr_in_block_rev(block, ins) {
                         if (ins->type != TAG_TEXTURE_4) continue;
-                        if (!mir_op_computes_derivatives(ctx->stage, ins->texture.op)) continue;
+                        if (!mir_op_computes_derivatives(ctx->stage, ins->op)) continue;
 
                         ins->helper_terminate = true;
                         break;
@@ -197,7 +197,7 @@
         mir_foreach_instr_global(ctx, ins) {
                 if (ins->type != TAG_TEXTURE_4) continue;
                 if (ins->dest >= ctx->temp_count) continue;
-                if (!mir_op_computes_derivatives(ctx->stage, ins->texture.op)) continue;
+                if (!mir_op_computes_derivatives(ctx->stage, ins->op)) continue;
 
                 mir_foreach_src(ins, s) {
                         if (ins->src[s] < temp_count)
diff --git a/src/panfrost/midgard/midgard_opt_dce.c b/src/panfrost/midgard/midgard_opt_dce.c
index 7dec286..0ae31f0 100644
--- a/src/panfrost/midgard/midgard_opt_dce.c
+++ b/src/panfrost/midgard/midgard_opt_dce.c
@@ -60,7 +60,7 @@
                         return false;
 
         if (ins->type == TAG_TEXTURE_4)
-                if (ins->texture.op == TEXTURE_OP_BARRIER)
+                if (ins->op == TEXTURE_OP_BARRIER)
                         return false;
 
         return true;
diff --git a/src/panfrost/midgard/midgard_ra.c b/src/panfrost/midgard/midgard_ra.c
index 38d2800..d212a00 100644
--- a/src/panfrost/midgard/midgard_ra.c
+++ b/src/panfrost/midgard/midgard_ra.c
@@ -755,7 +755,7 @@
         }
 
         case TAG_TEXTURE_4: {
-                if (ins->texture.op == TEXTURE_OP_BARRIER)
+                if (ins->op == TEXTURE_OP_BARRIER)
                         break;
 
                 /* Grab RA results */
diff --git a/src/panfrost/midgard/midgard_schedule.c b/src/panfrost/midgard/midgard_schedule.c
index 65e2c20..cee0271 100644
--- a/src/panfrost/midgard/midgard_schedule.c
+++ b/src/panfrost/midgard/midgard_schedule.c
@@ -970,9 +970,9 @@
         mir_update_worklist(worklist, len, instructions, ins);
 
         struct midgard_bundle out = {
-                .tag = ins->texture.op == TEXTURE_OP_BARRIER ?
+                .tag = ins->op == TEXTURE_OP_BARRIER ?
                         TAG_TEXTURE_4_BARRIER :
-                        (ins->texture.op == TEXTURE_OP_TEXEL_FETCH) || is_vertex ?
+                        (ins->op == TEXTURE_OP_TEXEL_FETCH) || is_vertex ?
                         TAG_TEXTURE_4_VTX : TAG_TEXTURE_4,
                 .instruction_count = 1,
                 .instructions = { ins }