i915: Don't log I915_DEBUG=fs output for blit shaders.

Unless you have NIR_DEBUG=print_internal, the rest of the shader debug
pipeline is also hidden.  Cleans up output when looking at shader-db
compiles.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25533>

src/gallium/drivers/i915/i915_context.h

@@ -132,6 +132,10 @@ struct i915_fragment_shader {
    } texcoords[I915_TEX_UNITS];
 
    bool reads_pntc;
+
+   /* Set if the shader is an internal (blit, etc.) shader that shouldn't debug
+    * log by default. */
+   bool internal;
 };
 
 struct i915_cache_context;

src/gallium/drivers/i915/i915_fpc_translate.c

@@ -33,6 +33,7 @@
 #include "i915_fpc.h"
 #include "i915_reg.h"
 
+#include "nir/nir.h"
 #include "pipe/p_shader_tokens.h"
 #include "tgsi/tgsi_dump.h"
 #include "tgsi/tgsi_info.h"
@@ -1086,8 +1087,10 @@ i915_translate_fragment_program(struct i915_context *i915,
    struct i915_fp_compile *p;
    const struct tgsi_token *tokens = fs->state.tokens;
    struct i915_token_list *i_tokens;
+   bool debug =
+      I915_DBG_ON(DBG_FS) && (!fs->internal || NIR_DEBUG(PRINT_INTERNAL));
 
-   if (I915_DBG_ON(DBG_FS)) {
+   if (debug) {
       mesa_logi("TGSI fragment shader:");
       tgsi_dump(tokens, 0);
    }
@@ -1101,7 +1104,7 @@ i915_translate_fragment_program(struct i915_context *i915,
    i915_fini_compile(i915, p);
    i915_optimize_free(i_tokens);
 
-   if (I915_DBG_ON(DBG_FS)) {
+   if (debug) {
       mesa_logi("i915 fragment shader with %d constants%s", fs->num_constants,
                 fs->num_constants ? ":" : "");
 

src/gallium/drivers/i915/i915_state.c

@@ -547,6 +547,7 @@ i915_create_fs_state(struct pipe_context *pipe,
 
    if (templ->type == PIPE_SHADER_IR_NIR) {
       nir_shader *s = templ->ir.nir;
+      ifs->internal = s->info.internal;
 
       static const struct nir_to_tgsi_options ntt_options = {
          .lower_fabs = true,
@@ -556,6 +557,7 @@ i915_create_fs_state(struct pipe_context *pipe,
       assert(templ->type == PIPE_SHADER_IR_TGSI);
       /* we need to keep a local copy of the tokens */
       ifs->state.tokens = tgsi_dup_tokens(templ->tokens);
+      ifs->internal = i915->no_log_program_errors;
    }
 
    ifs->state.type = PIPE_SHADER_IR_TGSI;