vc4: add hash table look-up for exported dmabufs

It is necessary to reuse existing BOs when dmabufs are imported. There
are 2 cases that need to be handled. dmabufs can be created/exported and
imported by the same process and can be imported multiple times.
Copying other drivers, add a hash table to track exported BOs so the
BOs get reused.

v2: Whitespace fixup (by anholt)

Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Eric Anholt <eric@anholt.net>

vc4: Disable early Z with computed depth.

We don't tell the hardware whether we're computing depth, so we need
to manage early Z state manually.  Fixes piglit early-z.

ttn: Update shader->info as we generate code.

We could use the nir_shader_gather_info() pass to update it after the
fact, but this is what glsl_to_nir and prog_to_nir do.

Reviewed-by: Rob Clark <robclark@freedesktop.org>

mesa: standardize naming Mesa3D, MESA -> Mesa

Signed-off-by: Vedran Miletić <vedran@miletic.net>
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>

mesa: Make MESA_SHADER_CAPTURE_PATH skip shaders with Name == -1.

Shaders with shProg->Name == ~0 (aka 4294967295) are internal meta
shaders that we don't really want to capture.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>

mesa: Use AC_HEADER_MAJOR to include correct header for major().

Gentoo has been smoke testing an upcoming change to glibc.

Bugzilla: https://bugs.gentoo.org/show_bug.cgi?id=580392

glsl: Remove references to tail_pred.

glx: Avoid aliasing violations.

Compilers are perfectly capable of generating efficient code for calls
like these to memcpy().

Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

mesa: Avoid aliasing violation in uniform_query.cpp.

Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

mesa: Avoid aliasing violation in FXT1.

Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

swrast: Avoid aliasing violation.

Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

glsl: Avoid aliasing violations.

Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

glsl: Separate overlapping sentinel nodes in exec_list.

I do appreciate the cleverness, but unfortunately it prevents a lot more
cleverness in the form of additional compiler optimizations brought on
by -fstrict-aliasing.

No difference in OglBatch7 (n=20).

Co-authored-by: Davin McCall <davmac@davmac.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

i965/miptree: Stop multiplying cube depth by 6 in HiZ calculations

intel_mipmap_tree::logical_depth0 is now in number of 2D slices so we no
longer need to be multiplying by 6.

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
Cc: "12.0" <mesa-stable@lists.freedesktop.org>

i965/miptree/isl: Stop multiplying depth by 6 for cubes

Now that the logical_depth0 field is in number of 2D slices, we don't need
to be multiplying by 6 when creating the surface.  It wasn't hurting
anything primarily because we get the actual length from the view which was
already handling it correctly.

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>

i965/blorp/gen8: Stop multiplying depth by 6 for cubes

intel_mipmap_tree::logical_depth0 is now in 2-D slices so there is no need
for us to multiply by 6 when we go to fill out a blorp surface state.

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>

nvc0: use nvc0_m2mf_push_linear() to reduce code duplication

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0: use nve4_p2mf_push_linear() to reduce code duplication

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

build: Remove unused AX_CHECK_COMPILE_FLAG macro

Unused since 1a6ae840413d7fb6d2e83f6a83081d5246c7ac9e

Signed-off-by: Andreas Boll <andreas.boll.dev@gmail.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

main: memcpy larger chunks in _mesa_propagate_uniforms_to_driver_storage

When possible, do the memcpy on larger blocks. This reduces cycles
spent in _mesa_propagate_uniforms_to_driver_storage from
1.51 % to 0.62% according to perf during the Unigine Heaven benchmark.
It did not affect the framerate of the benchmark. The system used for
testing was an i5 6600K with a Radeon R9 380.

Piglit hangs randomly on this system both with and without the patch
so i could not make a comparison.

v2: fixed whitespace

Signed-off-by: Nils Wallménius <nils.wallmenius@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

st/va: enable h264 VAAPI encode

Enable H.264 VAAPI encoding through config. Currently only H.264 baseline is supported. Encode entrypoint is not accepted by driver.

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>

st/va: add function to handle misc param type frame rate

Frame rate can be passed to driver either through VAEncSequenceParameterBufferType or VAEncMiscParameterTypeFrameRate. Previous code only implement the former one, which is used by Gstreamer-Vaapi. Now adding implementation for VAEncMiscParameterTypeFrameRate. Also adding default frame rate as 30 just in case application never provides frame rate information to driver.

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>

st/va: add enviromental variable to disable interlace

Add environmental variable to disable interlace mode. At VAAPI decoding stage, driver can not distinguish b/w pure decoding case and transcoding case. And since interlace encoding is not supported, we have to disable interlace for transcoding case. The temporary solution is to use enviromental variable to disable interlace mode.

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>

st/va: add preset values for VAAPI encode

Add some hardcoded values hardware needs mainly for rate control purpose. With previously hardcoded values for OMX, the rate control result is not correct. This change fixed the rate control result by setting correct values for Vaapi.

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>

st/va: add functions for VAAPI encode

Add necessary functions/changes for VAAPI encoding to buffer and picture. These changes will allow driver to handle all Vaapi encode related operations. This patch doesn't change the Vaapi decode behaviour.

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>

st/va: get rate control method from configattrib v2

Rate control method is passed from app to driver through config attrib list.
That is why we need to store this rate control method to config. And later
on, we will pass this value to context->desc.h264enc.rate_ctrl.rate_ctrl_method.

v2 (chk): fix broken build and commit message

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>

st/va: add conversion for yv12 to nv12in putimage v2

For putimage call, if image format is yv12 (or IYUV with U V field swap) and
surface format is nv12, then we need to convert yv12 to nv12 and then copy
the converted data from image to surface. We can't use the existing logic
where surface is destroyed and re-created with yv12 format.

v2 (chk): fix some compiler warnings and commit message

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>

vl/util: add copy func for yv12image to nv12surface v2

Add function to copy from yv12 image to nv12 surface for VAAPI putimage call.
We need this function in VaPutImage call where copying from yv12 image to nv12
surface for encoding. Existing function can't be used because it only work for
copying from yv12 surface to nv12 image in Vaapi.

v2: cleanup variable types and commit message

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>

st/va: add encode entrypoint v2

VAAPI passes PIPE_VIDEO_ENTRYPOINT_ENCODE as entry point for encoding case. We
will save this encode entry point in config. config_id was used as profile
previously. Now, config has both profile and entrypoint field, and config_id is
used to get the config object. Later on, we pass this entrypoint to
context->templat.entrypoint instead of always hardcoded to
PIPE_VIDEO_ENTRYPOINT_BITSTREAM for decoding case previously. Encode entrypoint
is not accepted by driver until we enable Vaapi encode in later patch.

v2 (chk): fix commit message to match 80 chars, use switch instead of ifs,
  fix memory leaks in the error path, implement vlVaQueryConfigEntrypoints
  as well, drop VAEntrypointEncPicture (only used for JPEG).

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>

nvc0: upload sample locations on GM20x

This fixes a bunch of multisample piglit tests on GM206, like
bin/arb_texture_multisample-texelfetch 2 -auto -fbo

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

freedreno/a4xx: time-elapsed query should be active for clears

Signed-off-by: Rob Clark <robdclark@gmail.com>

nvc0/ir: fix up an assertion in emitUADD()

It's illegal to have neg modifiers on both sources for OP_ADD,
and it's illegal to have OP_SUB with just src0 neg.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0: fix wrong indentation in nvc0_validate_fb()

Trivial.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>

glsl: reuse main extension table to appropriately restrict extensions

Previously we were only restricting based on ES/non-ES-ness and whether
the overall enable bit had been flipped on. However we have been adding
more fine-grained restrictions, such as based on compat profiles, as
well as specific ES versions. Most of the time this doesn't matter, but
it can create awkward situations and duplication of logic.

Here we separate the main extension table into a separate object file,
linked to the glsl compiler, which makes use of it with a custom
function which takes the ES-ness of the shader into account (thus
allowing desktop shaders to properly use ES extensions that would
otherwise have been disallowed.) We can also now use this logic to
generate #define's for all supported extensions automatically, removing
the duplicate (and often inaccurate) list in glcpp.

The effect of this change should be nil in most cases. However in some
situations, extensions like GL_ARB_gpu_shader5 which were formerly
available in compat contexts on the GLSL side of things will now become
inaccessible.

This regresses two ES CTS tests:

  ES3-CTS.shaders.shader_integer_mix.define
  ES31-CTS.shader_integer_mix.define

however that is due to them using #version 100 instead of 300 es. As the
extension is only defined for ES3, I believe this is the correct
behavior.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com> (v2)
v2 -> v3: integrate glcpp defines into the same mechanism

freedreno/a4xx: timestamp queries

Signed-off-by: Rob Clark <robdclark@gmail.com>

freedreno: hw timestamp support

If the kernel supports it, use hw counter for timestamps.

Signed-off-by: Rob Clark <robdclark@gmail.com>

freedreno: prep work for timestamp queries

We need "NULL" state to be a valid bit in the bitmask, because timestamp
queries are not restricted to draw/etc stages (ie. the only commands to
submit may just be to read the timestamp).  And just because there are
no draws, isn't a reason to skip the flush and return zero.

Signed-off-by: Rob Clark <robdclark@gmail.com>

radeonsi: ensure sample locations are set for line and polygon smoothing

Since commit d938b8c, the sample locations are no longer set unconditionally,
so we need to set the atom to dirty on all chips, not just Polaris.

Cc: 12.0 <mesa-stable@lists.freedesktop.org>

radeonsi: fix Polaris MSAA regression

The regression was introduced by commit d938b8c. The problem here is that in
order to use the small primitive filter, we need to explicitly set the sample
locations to 0. But the DB doesn't properly process the change of sample
locations without a flush, and so we can end up with incorrect Z values.

Instead of doing a flush, just disable the small primitive filter when MSAA
is force-disabled.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96908
Cc: 12.0 <mesa-stable@lists.freedesktop.org>

freedreno/ir3: Add missing braces in initializer

Signed-off-by: Rob Clark <robdclark@gmail.com>

freedreno/a2xx: silence missing case 'SHADER_COMPUTE' warning (v2)

v2: no need for break after an unreachable (Matt Turner)

Signed-off-by: Francesco Ansanelli <francians@gmail.com>
Signed-off-by: Rob Clark <robdclark@gmail.com>

radeonsi: implement buffer_subdata without indirect calls

There is less noise in CPU profile data now.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

gallium/util: don't modify usage in pipe_buffer_write

All drivers were already doing it except virgl.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

gallium: split transfer_inline_write into buffer and texture callbacks

to reduce the call indirections with u_resource_vtbl.

The worst call tree you could get was:
  - u_transfer_inline_write_vtbl
    - u_default_transfer_inline_write
      - u_transfer_map_vtbl
        - driver_transfer_map
      - u_transfer_unmap_vtbl
        - driver_transfer_unmap

That's 6 indirect calls. Some drivers only had 5. The goal is to have
1 indirect call for drivers that care. The resource type can be determined
statically at most call sites.

The new interface is:
  pipe_context::buffer_subdata(ctx, resource, usage, offset, size, data)
  pipe_context::texture_subdata(ctx, resource, level, usage, box, data,
                                stride, layer_stride)

v2: fix whitespace, correct ilo's behavior

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Acked-by: Roland Scheidegger <sroland@vmware.com>

nir: Lower interp_var_at_* like a normal load_var for flat inputs.

"flat centroid" and "flat sample" both just mean "flat", so we should
ignore interpolateAtCentroid/Sample and just return the flat value.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97032
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>

mesa: Don't call GenerateMipmap if Width or Height == 0.

One of the WebGL 2.0 conformance tests is trying to call
glGenerateMipmaps with a width and height of 0.  With the meta
implementation, this generates a "framebuffer attachment incomplete"
status, and falls back to the CPU path, calling MapTextureImage.

Except that there's no actual texture to map, and we assert fail.

There's no work to do in this case.  The test expects it to succeed,
so just return early with no error and avoid hassling the driver.

Cc: mesa-stable@lists.freedesktop.org
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96911
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>

anv/pipeline: Set up point coord enables

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Tested-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: "12.0" <mesa-stable@lists.freedesktop.org>

spirv/nir: Add support for ImageQuerySamples

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "12.0" <mesa-dev@lists.freedesktop.org>

spirv/nir: Handle texture projectors

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "12.0" <mesa-dev@lists.freedesktop.org>

nir/spirv: Refactor coordinate handling in handle_texture

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "12.0" <mesa-dev@lists.freedesktop.org>

spirv/nir: Refactor type handling in handle_texture

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "12.0" <mesa-dev@lists.freedesktop.org>

spirv/nir: Move opcode selection higher up in handle_texture

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "12.0" <mesa-dev@lists.freedesktop.org>

anv/image: Assert that the image format is actually supported

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "12.0" <mesa-dev@lists.freedesktop.org>

spirv/nir: Don't increment coord_components for array lod queries

For lod query instructions, we really don't care whether or not the sampler
is an array type because that doesn't factor into the LOD.

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "12.0" <mesa-dev@lists.freedesktop.org>

i965: Get rid of the do_lower_unnormalized_offsets pass

We can do this in NIR now.  No need to keep a GLSL pass lying around for
it.

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "12.0" <mesa-dev@lists.freedesktop.org>

i965/nir: Enable NIR lowering of txf and rect offsets

This fixes the following piglit tests on gen6+:

tex-miplevel-selection textureProjGradOffset 2DRect
tex-miplevel-selection textureGradOffset 2DRect
tex-miplevel-selection textureGradOffset 2DRectShadow
tex-miplevel-selection textureProjGradOffset 2DRect_ProjVec4
tex-miplevel-selection textureProjGradOffset 2DRectShadow

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "12.0" <mesa-dev@lists.freedesktop.org>

nir/lower_tex: Add support for lowering coordinate offsets

On i965, we can't support coordinate offsets for texelFetch or rectangle
textures.  Previously, we were doing this with a GLSL pass but we need to
do it in NIR if we want those workarounds for SPIR-V.

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "12.0" <mesa-dev@lists.freedesktop.org>

nir/lower_tex: Add some helpers for working with tex sources

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "12.0" <mesa-dev@lists.freedesktop.org>

nir: Add a helper for determining the type of a texture source

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "12.0" <mesa-dev@lists.freedesktop.org>

anv/pipeline: Set binding_table.gather_texture_start

This should get texture gather working on gen8+ and mostly working on gen7.

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "12.0" <mesa-dev@lists.freedesktop.org>

spirv/nir: Properly handle gather components

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "12.0" <mesa-dev@lists.freedesktop.org>

spirv/nir: Add support for shadow samplers that return vec4

While SPIR-V technically doesn't support "old style" shadow, the
shadow-compare gather instruction does return a vec4 so we need to be able
to set the old_style_shadow bit in NIR.

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "12.0" <mesa-dev@lists.freedesktop.org>

spirv/nir: Fix some texture opcode asserts

We can't get an lod with txf_ms and SPIR-V considers textureGrad to be an
explicit-LOD texturing instruction.

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "12.0" <mesa-dev@lists.freedesktop.org>

nv50/ir: allow to swap sources for OP_SUB

This allows the load-propagation pass to swap the sources in presence
of immediate values.

Maxwell (GM107):

total instructions in shared programs :1928187 -> 1927634 (-0.03%)
total gprs used in shared programs    :330741 -> 330154 (-0.18%)
total local used in shared programs   :28032 -> 28032 (0.00%)

                local        gpr       inst      bytes
    helped           0         271         425         425
      hurt           0           0         194         194

Fermi (GF114):

total instructions in shared programs :2334474 -> 2333829 (-0.03%)
total gprs used in shared programs    :380934 -> 380215 (-0.19%)
total local used in shared programs   :33304 -> 33264 (-0.12%)

                local        gpr       inst      bytes
    helped           5         314         521         521
      hurt           0           4         195         195

No regressions on GM107 and GF114 with full piglit.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

gallium/radeon: make deferred flushes asynchronous

Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>

gallium: add PIPE_FLUSH_DEFERRED

There are 2 uses:
- Asynchronous flushing for multithreaded drivers.
- Return a fence without flushing (mid-command-buffer fence). The driver
  can defer flushing until fence_finish is called.

This is required to make Bioshock Infinite faster, which creates
1000 fences (flushes) per frame.

Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Reviewed-by: Rob Clark <robdclark@gmail.com>

gallium/os: use CLOCK_MONOTONIC for sleeps (v2)

v2: handle EINTR, remove backslashes

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

mapi: fix typo in macro name

Fixes: 5ec140c17b54c2592009 ("mapi: Massage code to allow clang to compile.")
Reported-by: Alexandre Demers <alexandre.f.demers@gmail.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Eric Engestrom <eric.engestrom@imgtec.com>

docs: Put swr back on the GL_ARB_texture_buffer_object_rgb32 list.

Looks like this was lost when resolving merge conflicts in
commit d1fbd4cdb1bdb8041362a8e5f05833c43a39c9a6.

glsl: subroutine types cannot be compared

subroutine variables are to be used just in the way functions are
called. Although the spec doesn't say it explicitely, this means that
these variables are not to be used in any other way than those left
for function calls. Therefore, a comparison between 2 subroutine
variables should also cause a compilation error.

From The OpenGL® Shading Language 4.40, page 117:

  "  To use subroutines, a subroutine type is declared, one or more
     functions are associated with that subroutine type, and a
     subroutine variable of that type is declared. The function
     currently assigned to the variable function is then called by
     using function calling syntax replacing a function name with the
     name of the subroutine variable. Subroutine variables are
     uniforms, and are assigned to specific functions only through
     commands (UniformSubroutinesuiv) in the OpenGL API."

From The OpenGL® Shading Language 4.40, page 118:

  "  Subroutine uniform variables are called the same way functions
     are called. When a subroutine variable (or an element of a
     subroutine variable array) is associated with a particular
     function, all function calls through that variable will call that
     particular function."

Fixes GL44-CTS.shader_subroutine.subroutines_cannot_be_assigned_float_int_values_or_be_compared

Signed-off-by: Andres Gomez <agomez@igalia.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

i965: fix varying output setup

Since 7f53fead5c we treat every location as using all
four components so we only need special handling for
doubles when they cross multiple locations.

This fixes a crash in GL45-CTS.enhanced_layouts.varying_locations
where the outputs array would overflow when a dmat2 was stored at
the max varying location i.e 30.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>

nvc0/mme: fix offsets used for indirect draws

This fixes a regression introduced in
1da704a94c57aa0b0cf8faaa3236fe47dfb8f88c because the offset has moved
from 0x180 to 0x1a0, and the macros have to be re-compiled.

Fixes: 1da704a ("nvc0: increase the tex handles area size in the driver")
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0: fix offsets of MP perf counters input parameters

This fixes a regression introduced in
1da704a94c57aa0b0cf8faaa3236fe47dfb8f88c because the offset has moved
from 0x600 to 0x620, and the kernels used for reading MP perf counters
have to be re-assembled.

This also fixes amd_performance_monitor_measure piglit.

Fixes: 1da704a ("nvc0: increase the tex handles area size in the driver")
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

mesa: Add GL_BGRA_EXT to the list of GenerateMipmap internal formats.

The GL_EXT_texture_format_BGRA8888 extension specification defines a
GL_BGRA_EXT unsized internal format (which is a little odd - usually
BGRA is a pixel transfer format).  The extension is written against
the ES 1.0 specification, so it's a little hard to map, but I believe
it's effectively adding it to the table used here, so we should allow
it here as well.

Note that GL_EXT_texture_format_BGRA8888 is always enabled (dummy_true),
so we don't need to check if it's enabled here.

This fixes mipmap generation in Skia and ChromeOS.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
References: https://bugs.chromium.org/p/chromium/issues/detail?id=630371
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reported-by: Stéphane Marchesin <marcheu@chromium.org>
Cc: mesa-stable@lists.freedesktop.org

i965: Fix "operation operation" in comment.

From the redundant redundant department.

Reported-by: Michael Schellenberger Costa <mschellenbergercosta@googlemail.com>

i965: Fix shared atomic intrinsics to pay attention to base.

Cc: "12.0" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>

nir: Add a base const_index to shared atomic intrinsics.

Commit 52e75dcb8c04c0dde989970c4c587cbe8313f7cf made nir_lower_io
start using nir_intrinsic_set_base instead of writing const_index[0]
directly.  However, those intrinsics apparently don't /have/ a base,
so this caused assert failures.

However, the old code was happily setting non-existent const_index
fields, so it was pretty bogus too.

Jason pointed out that load_shared and store_shared have a base,
and that the i965 driver uses that field.  So presumably atomics
should have one as well, so that loads/stores/atomics all refer
to variables with consistent addressing.

Cc: "12.0" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>

glsl: re-enable varying packing in GL4.4+

We can still do packing we just need to get the packing type from the consumer
rather than the producer.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97033

i965: Include VUE handles for GS with invocations > 1.

We always resort to the pull model for instanced GS inputs.  So, we'd
better include the VUE handles, or else we can't actually pull anything.

Ian reports that on his branch with OES_geometry_shader enabled,
this fixes a bunch of dEQP-GLES31.functional.geometry_shading tests::

- instanced.draw_2_instances_geometry_2_invocations
- instanced.draw_2_instances_geometry_8_invocations
- instanced.draw_4_instances_geometry_2_invocations
- instanced.draw_4_instances_geometry_8_invocations
- instanced.draw_8_instances_geometry_2_invocations
- instanced.draw_8_instances_geometry_8_invocations
- instanced.geometry_2_invocations
- instanced.geometry_32_invocations
- instanced.geometry_8_invocations
- instanced.geometry_max_invocations
- instanced.geometry_output_different_2_invocations
- instanced.geometry_output_different_32_invocations
- instanced.geometry_output_different_8_invocations
- instanced.geometry_output_different_max_invocations
- instanced.invocation_output_vary_by_attribute
- instanced.invocation_output_vary_by_texture
- instanced.invocation_output_vary_by_uniform
- query.primitives_generated_instanced

Cc: mesa-stable@lists.freedesktop.org
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Tested-by: Ian Romanick <ian.d.romanick@intel.com>

mesa: Add -fno-math-errno -fno-trapping-math to CXXFLAGS.

Not sure why I forgot to add them to CXXFLAGS in commit f55c408067 or
commit 875458b778. Cuts about 1k of .text.

   text     data      bss      dec      hex  filename
5806354   287816    29384  6123554   5d7022  i965_dri.so before
5805497   287744    29384  6122625   5d6c81  i965_dri.so after

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

mesa: Drop -fno-builtin-memcmp.

According to the referenced bug report, gcc-4.5 and newer do not inline
memcmp(). I see no difference in performance of ipers with llvmpipe on a
Sandybridge (which does not have "Enhanced REP MOVSB/STOSB") by removing
this flag.

I attempted to confirm the problem with gcc-4.4, but it fails to compile
for quite a few different reasons.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

mapi: Massage code to allow clang to compile.

According to https://llvm.org/bugs/show_bug.cgi?id=19778#c3 this code
was violating the spec, resulting in it failing to compile.

Cc: mesa-stable@lists.freedesktop.org
Co-authored-by: Tomasz Paweł Gajc <tpgxyz@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=89599
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

docs: Add extensions not part of any GL or GL ES version

Based loosely on patches submitted ages ago by Thomas Helland.

v2: Add lots of missing data provided by Ilia.  Fix sort order of
GL_ARB_sparse_texture extensions suggested by Ilia.

v3: Note that Dave Airlie has started work on GL_ARB_bindless_texture.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>

docs: Update GL3.txt for OpenGL 4.0 on i965-ish hardware

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>

docs: Update GL3.txt for OpenGL ES on i965-ish hardware

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>

i965: print error messages if gs fails to compile

We do this for all other stages.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i965: enable GL4.4 for Gen8+

Acked-by: Kenneth Graunke <kenneth@whitecape.org>

i965: enable ARB_enhanced_layouts for gen6+

Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>

i965/vec4: add packing support for tcs load outputs

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>

i965/vec4: add support for packing tes inputs

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>

i965/vec4: add support for packing tcs outputs

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>

i965/vec4: support packing tcs inputs

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>

i965/vec4: add component packing for gs

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>

i965/vec4: add support for packing vs/gs/tes outputs

Here we create a new output_generic_reg array with the ability to
store the dst_reg for each component of user defined varyings.
This is needed as the previous code only stored the dst_reg based
on the varying location which meant packed varyings would overwrite
each other.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>

i965/vec4: add support for packing inputs

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>

i965: add helper for creating packing writemask

For example where n=3 first_component=1 this will give us
0xE (WRITEMASK_YZW).

V2:
Add assert to check first component is <= 4 (Suggested by Ken)

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>

i965: add helpers for creating component layout swizzle

This will be used to swizzle components to the beginning or end
of the vector based on the component layout qualifier and whether
we are doing a load or store.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>

vc4: Return V3D version details in the GL renderer info.

This is as close as we get to a name for the 3D blocks.

vc4: Check the V3D version reported by the kernel.

We don't want to bring up an old userspace driver on a kernel for
newer hardware.  We'll also want to look at the other ident fields in
the future.

vc4: Detect and report kernel support for branching.