mesa: implement glDeleteNamedStringARB()

Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Reviewed-by: Witold Baryluk <witold.baryluk@gmail.com>

mesa: split _mesa_lookup_shader_include() in two

The new local function lookup_shader_include() will be used by
glDeleteNamedStringARB() in the following patch.

Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Reviewed-by: Witold Baryluk <witold.baryluk@gmail.com>

mesa: implement glGetNamedStringivARB()

Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Reviewed-by: Witold Baryluk <witold.baryluk@gmail.com>

mesa: implement glIsNamedStringARB()

Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Reviewed-by: Witold Baryluk <witold.baryluk@gmail.com>

mesa: make error checking optional in _mesa_lookup_shader_include()

This will be usefull when implementing glIsNamedStringARB() which
doesn't do error checking, it just returns false for invalid
lookups instead.

Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Reviewed-by: Witold Baryluk <witold.baryluk@gmail.com>

mesa: implement glGetNamedStringARB()

Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Reviewed-by: Witold Baryluk <witold.baryluk@gmail.com>

mesa: add glNamedStringARB() support

Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Reviewed-by: Witold Baryluk <witold.baryluk@gmail.com>

mesa: add copy_string() helper

This will be used by the various ARB_shading_language_include
functions in the following patches.

Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Reviewed-by: Witold Baryluk <witold.baryluk@gmail.com>

mesa: add _mesa_lookup_shader_include() helper

This will be used both by the glsl compiler and the GL API.

Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Reviewed-by: Witold Baryluk <witold.baryluk@gmail.com>

mesa: add helper to validate tokenise shader include path

Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Reviewed-by: Witold Baryluk <witold.baryluk@gmail.com>

mesa: add ARB_shading_language_include infrastructure to gl_shared_state

Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Reviewed-by: Witold Baryluk <witold.baryluk@gmail.com>

glsl: add infrastructure for ARB_shading_language_include

Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Reviewed-by: Witold Baryluk <witold.baryluk@gmail.com>

mesa: add ARB_shading_language_include stubs

Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Reviewed-by: Witold Baryluk <witold.baryluk@gmail.com>

radv: Do not change scratch settings while shaders are active.

When the scratch ringbuffer settings are changed, the shader unit has
to be idle or we will have shaders using old and new settings.

That combination is not supported on the HW (likely the offset is
ringbuffer idx * WAVESIZE * 1024).

CC: <mesa-stable@lists.freedesktop.org>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>

turnip: Drop the copy of the formats table.

Now that we can (mostly) generate a pipe format for a VkFormat, use that
to answer queries about formats.  This will let us refactor the freedreno
format table surface layout code to be shared between gallium and vulkan.

This causes us to expose fewer formats for now (on a 1/100 CTS run I'm
doing, skips go from 3671 to 3835 out of 5145 tests).  Fails stay about
the same (478 -> 434, but the run is pretty flaky and we're doing fewer
tests now).

v2: Rebase on master, throw a finishme on missing vk-to-pipe formats that
    tu used to support.

Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com> (v1)
Reviewed-by: Jonathan Marek <jonathan@marek.ca>

util: Add a mapping from VkFormat to PIPE_FORMAT.

I'm planning on using this from radv and tu for queries about formats.

Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
Reviewed-by: Jonathan Marek <jonathan@marek.ca>

winsys/amdgpu: detect noop dependencies on the same ring correctly

Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>

ac: fill num_rings for remaining IPs

Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>

ac: add radeon_info::num_rings and move ring_type to amd_family.h

Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>

nir: don't use GLenum16 in nir.h

Reviewed-by: Connor Abbott <cwabbott0@gmail.com>

nir: move data.descriptor_set above data.index for better packing

4 bytes down

Reviewed-by: Connor Abbott <cwabbott0@gmail.com>

glsl_to_nir: rename image_access to mem_access

Reviewed-by: Connor Abbott <cwabbott0@gmail.com>

nir/print: only print image.format for image variables

Reviewed-by: Connor Abbott <cwabbott0@gmail.com>

nir: move data.image.access to data.access

The size of the data structure doesn't change.

Reviewed-by: Connor Abbott <cwabbott0@gmail.com>

st/mesa: call nir_serialize only once per shader

It was called twice.

Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>

st/mesa: keep serialized NIR instead of nir_shader in st_program

This decreases memory usage, because serialized NIR is more compact.

If shader_has_one_variant is true and the shader is uncached, the first
variant is created from nir_shader, otherwise the first variant and
all other variants are created from serialized NIR.

Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>

st/mesa: call nir_sweep in st_finalize_nir

This is invoked sooner before (pre-)compiling the first variant and is
also applied to fixed-func and ARB programs.

st/mesa: subclass st_vertex_program for VP-specific members

Inheritance:
    gl_program -> st_program -> st_vertex_program

Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>

st/mesa: more cleanups after unification of st_vertex/common_program

Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>

st/mesa: rename occurences of stcp to stp to correspond to st_program

Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>

st/mesa: cleanups after unification of st_vertex/common program

Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>

st/mesa: rename st_common_program to st_program

Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>

st/mesa: trivially merge st_vertex_program into st_common_program

a later commit will add back st_vertex_program as a subclass of
st_common_program

Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>

st/mesa: consolidate and simplify code flagging program::affected_states

Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>

st/mesa: initialize affected_states and uniform storage earlier in deserialize

This matches the uncached codepath.

affected_states was used before initialization, which was technically
a bug, but probably not reproducible due to _NEW_PROGRAM rebinding
everything.

Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>

st/mesa: start deduplicating some program code

Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>

st/mesa: decrease the size of st_fp_variant_key from 48 to 40 bytes

Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>

st/mesa: rename delete_basic_variant -> delete_common_variant

Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>

anv: add missing "fall-through" annotation

CoverityID: 1455884
Fixes: c1c346f1667375e9330a ("anv: implement VK_KHR_separate_depth_stencil_layouts")
Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>

egl: use EGL_CAST() macro in eglmesaext.h

Allows eglmesaext.h to be used in C++ code.

This aligns this file with the rest of EGL.

Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-By: Tapani Pälli <tapani.palli@intel.com>

vulkan: delete typo'd header

Two files exist in that directory:
- vulkan_xlib_randr.h
- vulkan_xlib_xrandr.h

Both were imported in 205c271562db8cb2effc ("vulkan: Update the XML and
headers to 1.1.70") with identical contents (ie. the
VK_EXT_acquire_xlib_display extension), but the former was never
included anywhere and can't be found upstream [1], while the latter is
included in vulkan.h and found upstream.

[1] https://github.com/KhronosGroup/Vulkan-Headers/tree/master/include/vulkan

Fixes: 205c271562db8cb2effc ("vulkan: Update the XML and headers to 1.1.70")
Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>

CL: sync C++ headers with Khronos

https://github.com/KhronosGroup/OpenCL-CLHPP at commit
cf9fc1035e8298c7ce65ee33066a660fd9892ebb

Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Acked-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

CL: sync C headers with Khronos

https://github.com/KhronosGroup/OpenCL-Headers at commit
0d5f18c6e7196863bc1557a693f1509adfcee056

Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Acked-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

intel: Add workaround for stencil state.

Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Sagar Ghuge <sagar.ghuge@intel.com>

turnip: fix sRGB GMEM clear

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>

turnip: implement CmdClearColorImage/CmdClearDepthStencilImage

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>

radv/aco: enable VK_KHR_shader_subgroup_extended_types

We could enable it on GFX10 if LLVM wasn't used as a fallback for
unsupported stages. Note that the CTS only tests it if
VK_KHR_shader_float16_int8 is enabled, even though it's not a
requirement.

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>

aco: implement 64-bit integer reductions

The multiplication reduction is larger than it could be, but it should be
easier to implement this way.

No failures with dEQP-VK.subgroups.*int64* except those caused by LLVM
being used for other stages.

v2: don't call setFixed() for v_add carry-out, since setHint sets physReg
v3: add and use emit_vadd32() helper
v4: use num_opcodes instead of last_opcode

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev> (v3)

aco: refactor reduction lowering helpers

Should make 64-bit integer reductions easier to implement.

v4: use num_opcodes instead of last_opcode

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev> (v3)

radv: advertise VK_KHR_shader_subgroup_extended_types on GFX8-GFX9

This extension allows to use subgroup operations with 8 and 16-bits

Untested on GFX6-GFX7, and most of subgroup operations are broken
on GFX10, so don't enable it for now. Not enabled on ACO because
it's still doesn't support 8-bits/16-bits.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

ac: add 16-bit float support to ac_build_alu_op()

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

ac: add 8-bit and 16-bit supports to ac_build_optimization_barrier()

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

ac: add 8-bit and 16-bit supports to ac_build_wwm()

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

ac: add 8-bit and 16-bit supports to get_reduction_identity()

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

ac: add 8-bit and 16-bit supports to ac_build_swizzle()

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

ac: add 8-bit and 16-bit supports to ac_build_dpp()

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

ac: add 8-bit and 16-bit supports to ac_build_set_inactive()

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

ac: add 8-bit and 16-bit supports to ac_build_readlane()

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

ac: add 8-bit and 16-bit supports to ac_build_shuffle()

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

ac: remove useless cast in ac_build_set_inactive()

The return type is always the src type (32 or 64 bits).

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

spirv: fix lowering of OpGroupNonUniformAllEqual

It should rely on the source type, not on the return type which
is always a boolean anyways, so vote_feq was never selected. For
OpSubgroupAllEqualKHR it's always an integer comparison.

This fixes some VK_KHR_shader_subgroup_extended_types tests with RADV.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

gitlab-ci: Remove limit on kernel logging

We don't seem to fault any more when running dEQP GLES2, and we don't
scrape serial output any more anyway so no problems should be caused by
that.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

mesa: fix warning in 32 bits build

Fixes: febedee4f6c ("mesa: add EXT_dsa glGetVertexArray* 4 functions")
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

mesa: enable EXT_direct_state_access

Always enabled; this doesn't require any driver work, it's just
core mesa bits.

quick_gl.txt is also updated because previously piglit ext_dsa
tests were skipped.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

mesa: add ARB_sparse_buffer NamedBufferPageCommitmentEXT function

The spec is unclear on how to handle the buffer argument so we reuse
the logic from the EXT_direct_state_access spec.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

mesa: add ARB_vertex_attrib_binding glVertexArray* functions

We can't simply alias ARB_direct_state_access functions because
those fail if the vao has never been bound before.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

mesa: extend vertex_array_attrib_format to support EXT_dsa

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

mesa: implement ARB_texture_storage_multisample + EXT_dsa functions

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

mesa: add ARB_texture_buffer_range glTextureBufferRangeEXT function

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

mesa: add ARB_instanced_arrays EXT_dsa function

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

mesa: add ARB_gpu_shader_fp64 selector-less functions

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

mesa: add ARB_clear_buffer_object named functions

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

mesa: add ARB_vertex_attrib_64bit VertexArrayVertexAttribLOffsetEXT

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

mesa: add ARB_framebuffer_no_attachments named functions

The wording in ARB_framebuffer_no_attachments and EXT_direct_state_access
is different.
In the former framebuffer names must have been generated using glGenFramebuffers
before using the named functions.
In the latter framebuffer names have no such constraints, so we can't use
the _mesa_lookup_framebuffer_dsa function.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

mesa: update features.txt to reflect EXT_dsa status

All features from the EXT_dsa spec are implemented.

Interactions with other specs:
- GL_AMD_gpu_shader_int64: not needed, since it's not enabled in
  compatibility profile.
- GL_ARB_bindless_texture is DONE
    "INVALID_OPERATION is generated when calling various functions
    to modify the state of a texture object from which handles have
    been extracted"
- GL_ARB_buffer_storage/GL_EXT_buffer_storage is DONE (NamedBufferStorageEXT function)
- GL_ARB_texture_storage is DONE (3 TextureStorage*DEXT functions)
- GL_ARB_vertex_attrib_binding is DONE (6 VertexArray* functions)
- GL_EXT_external_buffer is not supported by Mesa

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

panfrost: Set PIPE_COMPUTE_CAP_ADDRESS_BITS to 64

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

panfrost: Disable tiling for GLOBAL resources

It doesn't make sense to have nonlinear layouts for a buffer that can be
accessed as direct memory for a compute kernel. Turn that off so things
work as expected.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

panfrost: Pass kernel inputs as uniforms

We can take the OpenCL kernel inputs and interpret them as uniforms by
simply reusing the Gallium callback.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

panfrost: Stub out clover callbacks

We don't implement these yet but let's not crash.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

i965: Ensure that all 2101010 image imports can pass framebuffer completeness.

Chrome OS would like to import and render to any supported format that has
a corresponding display plane format, and this prevents throwing
framebuffer incomplete for FBOs using these textures.

See: crbug.com/949260

Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>

nir/serialize: fix serializing functions with no implementations.

Store a flag stating if there was an implmentation, and use
fxn->impl as a temporary flag between deserializsation stages.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

nir/serialize: pack function has name and entry point into flags.

Suggested by Jason.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

iris: Re-enable param compaction

In d1c4e64a69e, we added a parameter to tell the back-end compiler to
ignore the param array and just push however many constants you ask it
to push.  I enabled it for iris because this is really what iris wants
but it seems to have caused a number of regressions.  Revert to the old
behavior for now.

Fixes: d1c4e64a69e "intel/compiler: Add a flag to avoid compacting..."

mesa: enable glthread for 7 Days To Die

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

intel/compiler: Don't change hstride if not needed

Alignment requirements may have changed the horizontal stride already,
so don't set it if not required to avoid breaking said requirements.

Fixes several tests such as
dEQP-VK.subgroups.vote.graphics.subgroupallequal_int8_t

Signed-off-by: Iván Briano <ivan.briano@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

turnip: add x11 wsi

Copied from radv

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Eric Anholt <eric@anholt.net>

turnip: add display wsi

Copied from radv (minus the fence change)

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Eric Anholt <eric@anholt.net>

nir: Validate that variables are in the right lists

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>

etnaviv: blt: set TS dirty after clear

RS engine does this already, it is missing for BLT engine. This fixes
cases where a clear isn't immediately at the start of the frame.

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

etnaviv: separate PE and RS formats, use only RS only for tiling

There are PE formats not supported by RS, so we can't have a single
to translate both.

Use RS only for same formats until we have a translate_rs_format and test
the possible different format blits.

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

etnaviv: blt: use only for tiling, and add missing formats

* Removes the incorrect usage of translate_rs_format
* Disables use of BLT engine for different src/dst format

We only really need the BLT engine for tiling/detiling right now, but it
would be nice to support as many blit cases as possible to avoid using PE
for that.

To deal with different formats we need to:
 * Have a translate_blt_format which has all supported formats
 * Fix the swizzle translation from gallium (current version was wrong)
 * Set the src/dst sRGB bits as needed
 * Find which type conversions the BLT engine can actually do

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

Call shmget() with permission 0600 instead of 0777

A security advisory (TALOS-2019-0857/CVE-2019-5068) found that
creating shared memory regions with permission mode 0777 could allow
any user to access that memory.  Several Mesa drivers use shared-
memory XImages to implement back buffers for improved performance.

This path changes the shmget() calls to use 0600 (user r/w).

Tested with legacy Xlib driver and llvmpipe.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>

anv: Emit a NULL vertex for zero base_vertex/instance

If both are zero (the common case), we can emit a null vertex buffer
rather than emitting a vertex buffer with zeros in it.  The packing of
the VERTEX_BUFFER_STATE is faster because no relocation is emitted and
we can avoid creating the vertex buffer which means one less
anv_state_stream_alloc.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>

anv: Use an anv_state for the next binding table

This is a bit more natural because we're already getting an anv_state
most places in the pipeline.  The important part here, however, is that
we're no longer calling anv_block_pool_map on every alloc_binding_table
call.  While it's probably pretty cheap, it is potentially a linear walk
over the list of BOs and it was showing up in profiles.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>

anv: More carefully dirty state in BindPipeline

Instead of blindly dirtying descriptors and push constants the moment we
see a pipeline change, check to see if it actually changes the bind
layout or push constant layout.  This doubles the runtime performance of
one CPU-limited example running with the Dawn WebGPU implementation when
running on my laptop.

NOTE: This effectively reverts beca63c6c07.  While it was a nice
optimization, it was based on prog_data and we can't do that anymore
once we start allowing the same binding table to be used with multiple
different pipelines.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>

anv: More carefully dirty state in BindDescriptorSets

Instead of dirtying all graphics or all compute based on binding point,
we're now much more careful.  We first check to see if the actual
descriptor set changed and then only dirty the stages used by that
descriptor set.  For dynamic offsets, we keep a bitfield per-stage of
which offsets are actually used in that stage and we only dirty push
constants and descriptors if that stage has dynamic offsets AND those
offsets actually change.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>

anv: Use a switch statement for binding table setup

It theoretically could be more efficient but the real point here is that
it's no longer really a matter of dealing with special cases and then
the "real" thing.  The way we're handling binding tables, it's more of a
multi-step process and a switch is more natural.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>

anv: Rework push constant handling

This substantially reworks both the state setup side of push constant
handling and the pipeline compile side.  The fundamental change here is
that we're no longer respecting the prog_data::param array and instead
are just instructing the back-end compiler to leave the array alone.
This makes the state setup side substantially simpler because we can now
just memcpy the whole block of push constants and don't have to
upload one DWORD at a time.

This also means that we can compute the full push constant layout
up-front and just trust the back-end compiler to not mess with it.
Maybe one day we'll decide that the back-end compiler can do useful
things there again but for now, this is functionally no different from
what we had before this commit and makes the NIR handling cleaner.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>

anv: Re-arrange push constant data a bit

This moves the compute stuff into a anv_push_constants::cs sub-struct.
It also moves dynamic offsets into the push constants.  This means we
have to duplicate the data per-stage but that doesn't seem like the end
of the world and one day we may wish to make dynamic offsets per-stage
anyway.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>

intel/compiler: Add a flag to avoid compacting push constants

In vec4, we can just not run the pass.  In fs, things are a bit more
deeply intertwined.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>