panvk: propagate debug info through NIR when BIFROST_MESA_DEBUG=debuginfo is specified

Reviewed-by: Olivia Lee <olivia.lee@collabora.com>
Reviewed-by: Christoph Pillmayer <christoph.pillmayer@arm.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/39554>

src/panfrost/compiler/bifrost/bifrost.h

@@ -34,6 +34,7 @@ extern "C" {
 #define BIFROST_DBG_NOSSARA    0x4000
 #define BIFROST_DBG_STATSABS   0x8000
 #define BIFROST_DBG_STATSFULL 0x10000
+#define BIFROST_DBG_DEBUGINFO 0x20000
 
 extern unsigned bifrost_debug;
 

src/panfrost/compiler/bifrost/bifrost_compile.c

@@ -47,6 +47,7 @@ static const struct debug_named_value bifrost_debug_options[] = {
    {"nossara",    BIFROST_DBG_NOSSARA,    "Disable SSA in register allocation"},
    {"statsabs",   BIFROST_DBG_STATSABS,   "Don't normalize statistics"},
    {"statsfull",  BIFROST_DBG_STATSFULL,  "Print verbose statistics"},
+   {"debuginfo",  BIFROST_DBG_DEBUGINFO,  "Print debug information"},
    DEBUG_NAMED_VALUE_END
 };
 /* clang-format on */
@@ -67,6 +68,13 @@ bifrost_will_dump_shaders(void)
    return bifrost_debug & BIFROST_DBG_SHADERS;
 }
 
+bool
+bifrost_want_debug_info(void)
+{
+   bifrost_debug = debug_get_option_bifrost_debug();
+   return bifrost_debug & BIFROST_DBG_DEBUGINFO;
+}
+
 static bi_block *emit_cf_list(bi_context *ctx, struct exec_list *list);
 
 static bi_index

src/panfrost/compiler/bifrost/bifrost_compile.h

@@ -70,6 +70,7 @@ void bifrost_lower_texture_nir(nir_shader *nir, unsigned gpu_id);
 void bifrost_lower_texture_late_nir(nir_shader *nir, unsigned gpu_id);
 
 bool bifrost_will_dump_shaders(void);
+bool bifrost_want_debug_info(void);
 
 void bifrost_compile_shader_nir(nir_shader *nir,
                                 const struct pan_compile_inputs *inputs,

src/panfrost/compiler/pan_compiler.c

@@ -23,6 +23,15 @@ pan_will_dump_shaders(unsigned arch)
       return midgard_will_dump_shaders();
 }
 
+bool
+pan_want_debug_info(unsigned arch)
+{
+   if (arch >= 6)
+      return bifrost_want_debug_info();
+   else
+      return false;
+}
+
 const nir_shader_compiler_options *
 pan_get_nir_shader_compiler_options(unsigned arch)
 {

src/panfrost/compiler/pan_compiler.h

@@ -18,6 +18,7 @@
 struct pan_shader_info;
 
 bool pan_will_dump_shaders(unsigned arch);
+bool pan_want_debug_info(unsigned arch);
 
 const nir_shader_compiler_options *
 pan_get_nir_shader_compiler_options(unsigned arch);

src/panfrost/vulkan/panvk_vX_shader.c

@@ -377,6 +377,7 @@ panvk_get_spirv_options(UNUSED struct vk_physical_device *vk_pdev,
       .ssbo_addr_format = panvk_buffer_ssbo_addr_format(rs->storage_buffers),
       .phys_ssbo_addr_format = nir_address_format_64bit_global,
       .shared_addr_format = nir_address_format_32bit_offset,
+      .debug_info = pan_want_debug_info(PAN_ARCH),
    };
 }