radeonsi: fix various CLEAR_STATE issues

Fixes: 064550238ef0 ("radeonsi: use CLEAR_STATE to initialize some
                      registers")
Bugzilla: https://bugs.freedesktop.org/101969
Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

build: Convert git_sha1_gen script to Python.

Python is the scripting language we've been using for scripts that need
to run across all supported platforms.

Shell is *not* a portable language for scripts.

Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>

Fix SCons build

Fixes: 601093f95ddf ("xmlconfig: move into src/util")
Tested-by: Eric Engestrom <eric.engestrom@imgtec.com>
Tested-by: Roland Scheidegger <sroland@vmware.com>

mesa: fix bad cast conversions in viewport()

Fixes: ddc32537d6 ("mesa: clamp viewport values only once when using glViewport()")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101981
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101989
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>

i965/drm: Inline brw_bo_references.

It's a single atomic add, so it makes sense to inline it.

Improves performance in Piglit's drawoverhead microbenchmark's
"DrawArrays ( 1 VBO, 0 UBO,  0    ) w/ no state change" subtest by
0.400922% +/- 0.310389% (n=350) on my i7-7700HQ.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

Revert "st_glsl_to_tgsi: rewrite rename registers to use array fully."

This reverts commit 3008161d28e38336ba39aba4769a2deaf9732f55,
which caused a regression for VMWare.

The initial code had some recursion in it, that I removed by accident
trying to add back the recursion broke lots of things, take the high
road and revert for now.

Fixes: 3008161d (st_glsl_to_tgsi: rewrite rename registers to use array fully.)
Reviewed-by: Brian Paul <brianp@vmware.com>
Tested-by: Brian Paul <brianp@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

radv: handle 10-bit format clamping workaround.

This fixes:
dEQP-VK.api.copy_and_blit.core.blit_image.all_formats.*
for a2r10g10b10 formats as destination on SI/CIK hardware.

This adds support to the meta program for emitting 10-bit
outputs, and adds 10-bit support to the fragment shader key.

It also only does the int8/10 on SI/CIK.

Fixes: f4e499ec7 (radv: add initial non-conformant radv vulkan driver)
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Dave Airlie <airlied@redhat.com>

gallium/targets: Fix d3dadapter9 build after xmlconfig move.

Signed-off-by: Bas Nieuwenhuizen <basni@google.com>
Fixes: 601093f95dd "xmlconfig: move into src/util"
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

radv: Don't underflow non-visible VRAM size.

In some APU situations the reported visible size can be larger than
VRAM size. This properly clamps the value.

Surprisingly both CTS and spec seem to allow a heap type with size 0,
so this seemed like the easiest option to me.

Signed-off-by: Bas Nieuwenhuizen <basni@google.com>
Fixes: 4ae84efbc5c "radv: Use enum for memory heaps."
Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Tested-by: Michel Dänzer <michel.daenzer@amd.com>

Android: fix xmlconfig build

Commit 601093f95ddf ("xmlconfig: move into src/util") broke the Android
build due to missing libexpat dependency:

external/mesa3d/src/util/xmlconfig.c:34:10: fatal error: 'expat.h' file not found

Fixes: 601093f95ddf ("xmlconfig: move into src/util")
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Rob Herring <robh@kernel.org>

docs: Update feature list for GL 4.6

ARB_polygon_offset_clamp and ARB_texture_filter_anisotropic look like
they'd be pretty trivial to wire up.

Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>

util/ra: fix memory leak

CID: 1415909
Fixes: 7a34a0e8903249c41fae "ra: Add a callback for selecting a register
                             from what's available."
Signed-off-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

mesa: drop unnecessary GLAPIENTRY to _mesa_init_line()

Noticed randomly.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

mesa: only check errors when the state change in glClipControl()

When this GL call is a no-op, it should be a little faster in
the errors path only.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

mesa: only check errors when the state change in glPointSize()

When this GL call is a no-op, it should be a little faster in
the errors path only.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

mesa: only check errors when the state change in glCullFace()

When this GL call is a no-op, it should be a little faster in
the errors path only.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

mesa: only check errors when the state change in glProvokingVertex()

When this GL call is a no-op, it should be a little faster.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

dri_interface: document loaderPrivate for getCapability

Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

ac/common: always build NIR translation

radeonsi needs it now, and we require LLVM 3.9 anyway.

Fixes a build with radeonsi but not radv.

Android: fix compile error for DRI2 loader getCapability

Fix compile failure from commit 1bf703e4ea5c ("dri_interface,egl,gallium:
only expose RGBA visuals on Android").

Fixes: 1bf703e4ea5c ("dri_interface,egl,gallium: only expose RGBA visuals on Android")
Cc: 17.2 <mesa-stable@lists.freedesktop.org>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Rob Herring <robh@kernel.org>

Attempt to fix AppVeyor build, round 2

Revert "st/mesa: release sampler views when redefining a texture in st_context_teximage"

This reverts commit 5c1241268ba9b240cb79ab9a30c5255b176c83c9.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101961

Cc: 17.2 <mesa-stable@lists.freedesktop.org>

Attempt to fix the AppVeyor build

xmlconfig: move into src/util

v2: attempt to fix Android build (Emil)

v3: add missing include path

Reviewed-by: Marek Olšák <marek.olsak@amd.com> (v1)

xmlconfig: remove GL type dependencies

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

radeonsi: ensure that temp array allocas are in the entry block

Otherwise, code generation fails. This has become necessary since some
shaders are wrapped in control flow.

Fixes: 081ac6e5c6d2 ("radeonsi/gfx9: always wrap GS and TCS in an if-block (v2)")
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

radeonsi: enable R600_DEBUG=nir for vertex and fragment shaders

Also, disable geometry and tessellation shaders. Mixing and matching NIR
and TGSI shaders should work (and I've tested it for the VS/PS interface),
but geometry and tessellation requires VS-as-ES/LS, which isn't implemented
yet for NIR.

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

radeonsi: VS as ES/LS are not yet supported with R600_DEBUG=nir

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

radeonsi/nir: lower uniforms to UBO loads

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

ac/nir: implement load_frag_coord intrinsic

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

radeonsi/nir: lower txp instructions

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

ac/nir: pass ac_llvm_context to unpack_param

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

ac/nir,radeonsi: add and use ac_shader_abi::frag_pos

v2: update for LLVMValueRefs in ac_shader_abi

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

ac/nir,radeonsi: add and use ac_shader_abi::{ancillary,sample_coverage}

v2: update for LLVMValueRefs in ac_shader_abi

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

ac/nir,radv: move force_persample to ac_shader_info::force_persample

Avoid accessing radv-specific structures during the meat of NIR-to-LLVM
translation.

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

radeonsi: tweak next-shader assumptions when streamout is used

VS with streamout is always a HW VS.

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

radeonsi: use new function ac_build_umin for edgeflag clamping

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

ac/nir: clamp shadow texture comparison value on VI

Needed for TC-compatible HTILE in radeonsi for test cases like
piglit spec/arb_texture_rg/execution/fs-shadow2d-red-01.shader_test

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

ac/nir: add always_vector argument to ac_build_gather_values_extended

This simplifies a bunch of places that no longer need special treatment
of value_count == 1. We rely on LLVM to optimize away the 1-element vector
types.

This fixes a bunch of bugs where 1-element arrays are indexed indirectly.

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

ac/nir,radeonsi: add ac_shader_abi::front_face

v2: update for LLVMValueRefs in ac_shader_abi

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

ac/nir: pass ac_nir_context to emit_ddxy

Allocating the ddxy_lds is considered to be part of the API shader
translation and not part of the ABI.

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

ac/nir: pass ac_nir_context to SSBO intrinsic handlers

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

radeonsi: implement and use ac_shader_abi::load_ssbo

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

radeonsi: make get_indirect_index globally visible

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

ac/nir: load buffer descriptors via ac_shader_abi::load_ssbo

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

ac/nir: pass ac_nir_context to emit_discard_if

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

ac/nir: extract shader_info->fs.can_discard from NIR shader info

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

radeonsi/nir: perform radeonsi-specific lowering and optimization passes

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

radeonsi/nir: perform lowering of input/output driver locations

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

ac/nir: handle old-style shadow tex instructions correctly

The first element is only extracted for new-style shadow tex.

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

ac/nir: whitespace fixes

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

ac/nir: use shader_info pass to determine whether instance_id is used

This improves the separation of ABI and NIR translation.

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

ac/nir: move setting shader_info->fs.writes_memory to radv-specific code

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

radeonsi/nir: add image descriptor loading

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

ac/nir: add image and write parameter to ac_shader_abi::load_sampler_desc

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

ac/nir: add support for arrays-of-arrays to get_sampler_desc

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

radeonsi/nir: set si_shader_context::num_{sampler,images}

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

radeonsi/nir: implement ac_shader_abi::load_sampler_desc

v2: remove enum desc_type from radeonsi (Marek)

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

ac/nir: pass ac_nir_context to tex_fetch_ptrs and related functions

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

ac/nir: add and use ac_shader_abi::load_sampler_desc

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

ac/nir: pass ac_nir_context to visit_tex and various related functions

Get most of the churn out of the way before actually loading samplers
via the ABI.

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

ac/nir,radeonsi: add ac_shader_abi::chip_class

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

radeonsi/nir: emit FS outputs

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

radeonsi/nir: load FS inputs

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

radeonsi/nir: load VS inputs

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

ac/nir,radeonsi: add ac_shader_abi::load_ubo

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

ac/nir: pass ac_nir_context to visit_load_ubo_buffer

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

ac/nir: pass ac_nir_context to visit_{load,store}_var and get_deref_offset helper

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

ac/nir: pass ac_llvm_context to some helper functions

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

ac/nir: pass ac_nir_context to visit_intrinsic

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

ac/nir: add ac_nir_context::main_function

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

ac/nir: split scanning outputs from setting up output allocas

The scanning phase sets the driver_location, because it is part of the
ABI: radeonsi does the assignment differently.

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

ac/nir: pass ac_llvm_context to *build_alloca* helpers

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

ac/nir: use ac_shader_abi::emit_outputs

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

ac,radeonsi: add ac_shader_abi::emit_outputs for hardware VS shaders

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

radeonsi: pass si_shader_context to get_primitive_id

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

radeonsi: translate NIR to LLVM

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

radeonsi: dump NIR instead of TGSI when appropriate

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

radeonsi: bypass the shader cache for NIR shaders

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

radeonsi: scan NIR shaders to obtain required info

v2: set num_instruction to 2, i.e. 1 + END (Marek)

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

ac/nir: add ac_shader_abi::inputs

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

ac/nir: begin splitting off ac_nir_context

The eventual goal is to hide all radv-specific details behind
ac_nir_context::abi, so that the NIR->LLVM code can be re-used by
radeonsi.

During development, we live with a partial split, where some of the
NIR->LLVM code still relies on linking back to the nir_to_llvm_context
(which should ultimately be renamed to reflect that it's radv-specific).
The idea is to get rid of these backlinks over time.

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

radeonsi: add si_shader_selector::nir

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

radeonsi: implement pipe_screen::get_compiler_options for NIR

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

radeonsi: add nir include paths

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

ac/nir: start using ac_shader_abi

v2: update for LLVMValueRefs in ac_shader_abi

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

ac,radeonsi: move some VS input descriptions to ac_shader_abi

v2: use LLVM values instead of function parameter indices

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

radeonsi: store shader function arguments in a structure

Aligns the code a bit more with ac/nir, and simplifies the setup of
ac_shader_abi.

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

gallium/targets: link against NIR when building radeonsi

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

st/glsl_to_nir: move nir_lower_io to drivers

This allows drivers more freedom in how exactly they want to lower I/O,
e.g. first lowering I/O to temporaries.

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

st/mesa: get rid of st_glsl_types

It's a duplicate of glsl_type::count_attribute_slots.

Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

st/glsl_to_nir: use nir_lower_samplers_as_deref when requested by the driver

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

st/glsl_to_nir: fix the case where NIR clone testing is enabled

In that case, prog->nir must be assigned at the end.

Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

gallium: add PIPE_CAP_NIR_SAMPLERS_AS_DEREF

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

nir: add nir_lower_uniforms_to_ubo pass

This is a further lowering of default-block uniform loads that transforms
load_uniform intrinsics into load_ubo intrinsics. This simplifies the rest
of the backend.

v2: transform from load_uniform instead of straight from variables

Reviewed-by: Eric Anholt <eric@anholt.net>

nir: add nir_lower_samplers_as_deref pass

This pass is a replacement for the nir_lower_samplers pass, which has the
advantage of keeping sampler references as derefs. This allows a unified
treatment of texture instructions and image intrinsics in the backend.

nir: add load_frag_coord system value intrinsic

Some drivers prefer to treat gl_FragCoord as a system value rather than
a fragment shader input, see Const.GLSLFragCoordIsSysVal.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

nir: fix nir_lower_wpos_ytransform when gl_FragCoord is a system value

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

nir: add nir_instr_rewrite_deref

Allows modifying a texture instruction's texture and sampler derefs.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

mesa: add KHR_no_error support to glPointSize()

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>