[Mesa-dev] [PATCH v5 00/70] ARB_shader_storage_buffer_object (mesa, i965)

Samuel Iglesias Gonsálvez siglesias at igalia.com
Mon Sep 14 22:10:18 PDT 2015


Hi Mark,

On 15/09/15 01:14, Mark Janes wrote:
> I tested this series, and found a few issues:
> 
>  - `make check` fails the dispatch sanity tests in Mesa
> 

I'm going to take a look at this.

>  - The branch doesn't rebase cleanly on top of master (this isn't wrong,
>    it just surprised me, since you sent out the series so recently)
> 

As we add a lot of changes, sometimes a minor change upstream forces us
to modify a little bit our patches by hand when rebasing. For example,
when someone adds a new intrinsic operation or something like that.

I am going to check it too.

>  - piglit.spec.arb_uniform_buffer_object.getintegeri_v fails
> 

This is a known issue. I have a patch for piglit to fix it, pending to
be merged:

http://lists.freedesktop.org/archives/piglit/2015-May/015972.html

> On the positive side,
> deqp-gles3.functional.ubo.random.all_shared_buffer.24 appears to be
> fixed by this series.  On bsw, there are 7 other deqp tests that are
> fixed.
> 

\o/

Thanks!

Sam

> -Mark
> 
> 
> Iago Toral Quiroga <itoral at igalia.com> writes:
> 
>> Hi,
>>
>> this is the latest version of the ARB_shader_storage_buffer_object
>> implementation. A good part of the frontend bits for this are already in
>> master, but this adds some more missing pieces, specifically std430 and
>> memory qualifiers. Additionally, this provides the i965 implementation.
>>
>> Changes in this version include:
>>
>> - A new implementation of std430: we no longer have to propagate the layout
>> qualifier information down to the type of each buffer variable, which makes
>> the implementation a lot easier.
>>
>> - Added a Nir/Vec4 implementation for all the pieces: loads, stores, atomics
>> and unsized arrays.
>>
>> - A new implementation for computing the length of unsized arrays in SSBO
>> definitions that pushes less work to the backends.
>>
>> - A bunch of fixes to various patches throughout the series.
>>
>> - All the review feedback addressed.
>>
>> This branch no longer depends on other uncommitted work, the few  remaining
>> patches we needed (a vec4 implementation of Curro's IR builder together with
>> some helper functions) are now part of this series (patches 33-35).
>>
>> We have not dropped the old vec4_visitor implementation from the patch set,
>> however, now that Nir/Vec4 has been enabled by default and that there are
>> patches in the mailing list that address the shader-db regressions it looks
>> like we might not be interested in these patches any more, feel free to skip
>> the review of these if that is the case, they are patches:
>>
>> Patch 16: i965/vec4: Implement ir_unop_get_buffer_size
>> Patch 39: i965/vec4: Implement __intrinsic_store_ssbo
>> Patch 43: i965/vec4: Implement __intrinsic_load_ssbo
>> Patch 53: i965/vec4: Implement lowered SSBO atomic intrinsics
>>
>> Finally, notice that there are 23 patches in this series that already have
>> a Reviewed-by.
>>
>> Development branch:
>>
>> https://github.com/Igalia/mesa.git
>> branch itoral-ARB_shader_storage_buffer_object-v5
>>
>> Piglit:
>>
>> All SSBO piglit tests are in piglit master under
>> tests/spec/arb_shader_storage_buffer_object.
>>
>> Samuel has a modified version of Ian's branch for random testing of UBOs that
>> he used to verify the implementation of std430. We found a few bugs thanks to
>> that! If someone wants to play with it, this modified version is here:
>>
>> https://github.com/Igalia/piglit.git
>> branch ssbo-random-tests-std430
>>
>> Antia Puentes (1):
>>   glsl: Mark as active all elements of shared/std140 block arrays
>>
>> Francisco Jerez (3):
>>   i965/vec4: Introduce VEC4 IR builder.
>>   i965/vec4: Import helpers to convert vectors into arrays and back.
>>   i965/vec4: Import surface message builder functions.
>>
>> Iago Toral Quiroga (29):
>>   i965: Use 16-byte offset alignment for shader storage buffers
>>   i965: Implement DriverFlags.NewShaderStorageBuffer
>>   i965: Set MaxShaderStorageBuffers for compute shaders
>>   i965: Upload Shader Storage Buffer Object surfaces
>>   i965: handle visiting of ir_var_shader_storage variables
>>   i965/fs: Do not split buffer variables
>>   nir: Implement __intrinsic_store_ssbo
>>   i965/nir/fs: Implement nir_intrinsic_store_ssbo
>>   i965/nir/vec4: Implement nir_intrinsic_store_ssbo
>>   i965/vec4: Implement __intrinsic_store_ssbo
>>   nir: Implement __intrinsic_load_ssbo
>>   i965/nir/fs: Implement nir_intrinsic_load_ssbo
>>   i965/nir/vec4: Implement nir_intrinsic_load_ssbo
>>   i965/vec4: Implement __intrinsic_load_ssbo
>>   nir/glsl_to_nir: ignore an instruction's dest if it hasn't any
>>   glsl: Rename atomic counter functions
>>   glsl: Add atomic functions from ARB_shader_storage_buffer_object
>>   glsl: lower SSBO atomic intrinsics
>>   nir: Implement lowered SSBO atomic intrinsics
>>   i965/nir/fs: Implement nir_intrinsic_ssbo_atomic_*
>>   i965/nir/vec4: Implement nir_intrinsic_ssbo_atomic_*
>>   i965/vec4: Implement lowered SSBO atomic intrinsics
>>   glsl: First argument to atomic functions must be a buffer variable
>>   mesa: Add queries for GL_SHADER_STORAGE_BUFFER
>>   glsl: Allow use of memory qualifiers with
>>     ARB_shader_storage_buffer_object.
>>   glsl: Apply memory qualifiers to buffer variables
>>   glsl: Do not allow assignments to read-only buffer variables
>>   glsl: Do not allow reads from write-only buffer variables
>>   docs: Mark ARB_shader_storage_buffer_object as done for i965
>>
>> Kristian Høgsberg (1):
>>   glsl: atomic counters can be declared as buffer-qualified variables
>>
>> Samuel Iglesias Gonsalvez (36):
>>   mesa: set MAX_SHADER_STORAGE_BUFFERS to 15.
>>   i965: set ARB_shader_storage_buffer_object related constant values
>>   glsl: return error if unsized arrays are found in OpenGL ES
>>   glsl: add support for unsized arrays in shader storage blocks
>>   glsl: Add parser/compiler support for unsized array's length()
>>   glsl: implement unsized array length
>>   nir: Implement ir_unop_get_buffer_size
>>   i965/vec4: Implement VS_OPCODE_GET_BUFFER_SIZE
>>   i965/vec4/nir: implement nir_intrinsic_get_buffer_size
>>   i965/vec4: Implement ir_unop_get_buffer_size
>>   i965/fs: Implement FS_OPCODE_GET_BUFFER_SIZE
>>   i965/fs/nir: implement nir_intrinsic_get_buffer_size
>>   i965/wm: emit null buffer surfaces when null buffers are attached
>>   i965/wm: surfaces should have the API buffer size, not the drm buffer
>>     size
>>   glsl: layout qualifier can appear more than once since OpenGL 4.20
>>   glsl: ignore default qualifier declarations when checking for
>>     duplicate layout qualifiers
>>   glsl: refactor parser processing of an interface block definition
>>   glsl: allow default qualifiers for shader storage block definitions
>>   glsl: Add std430 related member functions to glsl_type class
>>   glsl: Add parser/compiler support for std430 interface packing
>>     qualifier
>>   glsl: Add std430 interface packing support to
>>     program_resource_visitor's member functions
>>   glsl: add std430 interface packing support to ssbo related operations
>>   glsl: a shader storage buffer must be smaller than the maximum size
>>     allowed
>>   glsl: number of active shader storage blocks must be within allowed
>>     limits
>>   glsl: ignore buffer variables when counting uniform components
>>   glsl: shader storage blocks use different max block size values than
>>     uniforms
>>   glsl: use ir_rvalue instead of ir_dereference in auxiliary functions
>>   mesa: add glShaderStorageBlockBinding()
>>   glsl: fix UNIFORM_BUFFER_START or UNIFORM_BUFFER_SIZE query when no
>>     buffer object is bound
>>   glsl: Allow memory qualifiers on shader storage buffer blocks
>>   main: Add SHADER_STORAGE_BLOCK and BUFFER_VARIABLE support for
>>     ARB_program_interface_query
>>   main/tests: add ARB_shader_storage_buffer_object tokens to
>>     enum_strings
>>   glapi: add ARB_shader_storage_block_buffer_object
>>   mesa: Add getters for the GL_ARB_shader_storage_buffer_object max
>>     constants
>>   mesa: enable ARB_shader_storage_buffer_object extension for GLES 3.1
>>   i965: Enable ARB_shader_storage_buffer_object extension for gen7+
>>
>>  docs/GL3.txt                                       |   4 +-
>>  src/glsl/ast.h                                     |   9 +
>>  src/glsl/ast_array_index.cpp                       |   3 +-
>>  src/glsl/ast_function.cpp                          |  50 +-
>>  src/glsl/ast_to_hir.cpp                            | 222 +++++++-
>>  src/glsl/ast_type.cpp                              |   2 +
>>  src/glsl/builtin_functions.cpp                     | 215 +++++++-
>>  src/glsl/glsl_lexer.ll                             |  10 +-
>>  src/glsl/glsl_parser.yy                            | 196 +++----
>>  src/glsl/glsl_parser_extras.cpp                    | 141 ++++-
>>  src/glsl/glsl_parser_extras.h                      |   9 +-
>>  src/glsl/glsl_types.cpp                            | 238 +++++++-
>>  src/glsl/glsl_types.h                              |  33 +-
>>  src/glsl/ir.cpp                                    |   8 +
>>  src/glsl/ir.h                                      |  33 +-
>>  src/glsl/ir_uniform.h                              |   5 +
>>  src/glsl/ir_validate.cpp                           |  11 +
>>  src/glsl/link_uniform_block_active_visitor.cpp     |  23 +
>>  src/glsl/link_uniform_blocks.cpp                   |  51 +-
>>  src/glsl/link_uniforms.cpp                         | 107 +++-
>>  src/glsl/linker.cpp                                | 174 ++++--
>>  src/glsl/linker.h                                  |   7 +-
>>  src/glsl/lower_ubo_reference.cpp                   | 435 ++++++++++++++-
>>  src/glsl/nir/glsl_to_nir.cpp                       | 184 ++++++-
>>  src/glsl/nir/nir_intrinsics.h                      |  55 +-
>>  src/glsl/nir/nir_lower_phis_to_scalar.c            |   2 +
>>  .../glapi/gen/ARB_shader_storage_buffer_object.xml |  36 ++
>>  src/mapi/glapi/gen/GL4x.xml                        |  18 +-
>>  src/mapi/glapi/gen/Makefile.am                     |   1 +
>>  src/mapi/glapi/gen/gl_API.xml                      |   6 +-
>>  src/mesa/drivers/dri/i965/Makefile.sources         |   3 +
>>  src/mesa/drivers/dri/i965/brw_context.c            |  16 +
>>  src/mesa/drivers/dri/i965/brw_context.h            |   6 +
>>  src/mesa/drivers/dri/i965/brw_defines.h            |   4 +
>>  src/mesa/drivers/dri/i965/brw_fs.cpp               |   1 +
>>  src/mesa/drivers/dri/i965/brw_fs.h                 |   5 +
>>  .../dri/i965/brw_fs_channel_expressions.cpp        |   2 +
>>  src/mesa/drivers/dri/i965/brw_fs_generator.cpp     |  47 ++
>>  src/mesa/drivers/dri/i965/brw_fs_nir.cpp           | 235 ++++++++
>>  .../drivers/dri/i965/brw_fs_vector_splitting.cpp   |   1 +
>>  src/mesa/drivers/dri/i965/brw_shader.cpp           |   6 +
>>  src/mesa/drivers/dri/i965/brw_state_upload.c       |   1 +
>>  src/mesa/drivers/dri/i965/brw_vec4.cpp             |   1 +
>>  src/mesa/drivers/dri/i965/brw_vec4.h               |  11 +
>>  src/mesa/drivers/dri/i965/brw_vec4_builder.h       | 602 +++++++++++++++++++++
>>  src/mesa/drivers/dri/i965/brw_vec4_generator.cpp   |  31 ++
>>  src/mesa/drivers/dri/i965/brw_vec4_nir.cpp         | 306 +++++++++++
>>  .../drivers/dri/i965/brw_vec4_surface_builder.cpp  | 332 ++++++++++++
>>  .../drivers/dri/i965/brw_vec4_surface_builder.h    |  69 +++
>>  src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp     | 369 ++++++++++++-
>>  src/mesa/drivers/dri/i965/brw_wm_surface_state.c   |  72 ++-
>>  src/mesa/drivers/dri/i965/intel_buffer_objects.c   |   2 +
>>  src/mesa/drivers/dri/i965/intel_extensions.c       |   1 +
>>  src/mesa/main/config.h                             |   2 +-
>>  src/mesa/main/get.c                                |  44 +-
>>  src/mesa/main/get_hash_params.py                   |  16 +
>>  src/mesa/main/mtypes.h                             |   3 +-
>>  src/mesa/main/program_resource.c                   |   7 +-
>>  src/mesa/main/shader_query.cpp                     | 265 ++++++++-
>>  src/mesa/main/tests/enum_strings.cpp               |  15 +
>>  src/mesa/main/uniforms.c                           |  52 ++
>>  src/mesa/main/uniforms.h                           |   4 +
>>  src/mesa/program/ir_to_mesa.cpp                    |   2 +
>>  src/mesa/state_tracker/st_glsl_to_tgsi.cpp         |   5 +
>>  64 files changed, 4511 insertions(+), 315 deletions(-)
>>  create mode 100644 src/mapi/glapi/gen/ARB_shader_storage_buffer_object.xml
>>  create mode 100644 src/mesa/drivers/dri/i965/brw_vec4_builder.h
>>  create mode 100644 src/mesa/drivers/dri/i965/brw_vec4_surface_builder.cpp
>>  create mode 100644 src/mesa/drivers/dri/i965/brw_vec4_surface_builder.h
>>
>> -- 
>> 1.9.1
>>
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>> mesa-dev at lists.freedesktop.org
>> http://lists.freedesktop.org/mailman/listinfo/mesa-dev
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