[Mesa-dev] [PATCH 03/17] intel: Disable 64-bit extensions on platforms without 64-bit types

[Matt Turner]

Gen11 does not support DF, Q, UQ types in hardware. As a result, we have
to disable some GL extensions until they can be reimplemented.
---
 src/intel/common/gen_device_info.c           | 3 +++
 src/intel/common/gen_device_info.h           | 1 +
 src/mesa/drivers/dri/i965/intel_extensions.c | 9 +++++----
 3 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/src/intel/common/gen_device_info.c b/src/intel/common/gen_device_info.c
index 8bf4b6b9bb0..465d4c783a1 100644
--- a/src/intel/common/gen_device_info.c
+++ b/src/intel/common/gen_device_info.c
@@ -138,6 +138,7 @@ static const struct gen_device_info gen_device_info_snb_gt2 = {
    .must_use_separate_stencil = true,               \
    .has_llc = true,                                 \
    .has_pln = true,                                 \
+   .has_64bit_types = true,                         \
    .has_surface_tile_offset = true,                 \
    .timestamp_frequency = 12500000
 
@@ -322,6 +323,7 @@ static const struct gen_device_info gen_device_info_hsw_gt3 = {
    .has_llc = true,                                 \
    .has_sample_with_hiz = false,                    \
    .has_pln = true,                                 \
+   .has_64bit_types = true,                         \
    .supports_simd16_3src = true,                    \
    .has_surface_tile_offset = true,                 \
    .max_vs_threads = 504,                           \
@@ -756,6 +758,7 @@ static const struct gen_device_info gen_device_info_cnl_5x8 = {
 #define GEN11_FEATURES(_gt, _slices, _l3)           \
    GEN8_FEATURES,                                   \
    GEN11_HW_INFO,                                   \
+   .has_64bit_types = false,                        \
    .gt = _gt, .num_slices = _slices, .l3_banks = _l3
 
 static const struct gen_device_info gen_device_info_icl_8x8 = {
diff --git a/src/intel/common/gen_device_info.h b/src/intel/common/gen_device_info.h
index fd9c17531db..7761eeba7e0 100644
--- a/src/intel/common/gen_device_info.h
+++ b/src/intel/common/gen_device_info.h
@@ -59,6 +59,7 @@ struct gen_device_info
    bool has_llc;
 
    bool has_pln;
+   bool has_64bit_types;
    bool has_compr4;
    bool has_surface_tile_offset;
    bool supports_simd16_3src;
diff --git a/src/mesa/drivers/dri/i965/intel_extensions.c b/src/mesa/drivers/dri/i965/intel_extensions.c
index cc961e051fd..3f5f4dab411 100644
--- a/src/mesa/drivers/dri/i965/intel_extensions.c
+++ b/src/mesa/drivers/dri/i965/intel_extensions.c
@@ -217,7 +217,7 @@ intelInitExtensions(struct gl_context *ctx)
       ctx->Extensions.ARB_derivative_control = true;
       ctx->Extensions.ARB_framebuffer_no_attachments = true;
       ctx->Extensions.ARB_gpu_shader5 = true;
-      ctx->Extensions.ARB_gpu_shader_fp64 = true;
+      ctx->Extensions.ARB_gpu_shader_fp64 = devinfo->has_64bit_types;
       ctx->Extensions.ARB_shader_atomic_counters = true;
       ctx->Extensions.ARB_shader_atomic_counter_ops = true;
       ctx->Extensions.ARB_shader_clock = true;
@@ -229,7 +229,7 @@ intelInitExtensions(struct gl_context *ctx)
       ctx->Extensions.ARB_texture_compression_bptc = true;
       ctx->Extensions.ARB_texture_view = true;
       ctx->Extensions.ARB_shader_storage_buffer_object = true;
-      ctx->Extensions.ARB_vertex_attrib_64bit = true;
+      ctx->Extensions.ARB_vertex_attrib_64bit = devinfo->has_64bit_types;
       ctx->Extensions.EXT_shader_samples_identical = true;
       ctx->Extensions.OES_primitive_bounding_box = true;
       ctx->Extensions.OES_texture_buffer = true;
@@ -279,8 +279,9 @@ intelInitExtensions(struct gl_context *ctx)
    }
 
    if (devinfo->gen >= 8) {
-      ctx->Extensions.ARB_gpu_shader_int64 = true;
-      ctx->Extensions.ARB_shader_ballot = true; /* requires ARB_gpu_shader_int64 */
+      ctx->Extensions.ARB_gpu_shader_int64 = devinfo->has_64bit_types;
+      /* requires ARB_gpu_shader_int64 */
+      ctx->Extensions.ARB_shader_ballot = devinfo->has_64bit_types;
       ctx->Extensions.ARB_ES3_2_compatibility = true;
    }
 
-- 
2.16.1