glsl: check that only the outermost array is unsized

Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

glsl: allow AoA to be sized by initializer or constructor

V2: Split out unsized array validation to its own patch as
suggested by Samuel.

Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

glsl: add support for initialising sampler AoA

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

glsl: Add support for linking uniform arrays of arrays

V3: Fix setting of data.location for struct AoA UBO members

V2: Handle arrays of arrays in the same way structures are handled

The ARB_arrays_of_arrays spec doesn't give very many details on how
AoA uniforms are intended to be implemented. However in the
ARB_program_interface_query spec there are details that show AoA are
intended to be handled in a similar way to structs.

Issues 7 from the ARB_program_interface_query spec:

 We define rules consistent with our enumeration rules for
 other complex types.  For existing one-dimensional arrays, we enumerate
 a single entry if the array is an array of basic types, or separate
 entries for each array element if the array is an array of structures.
 We follow similar rules here.  For a uniform array such as:

   uniform vec4 a[5][4][3];

 we enumerate twenty different entries ("a[0][0][0]" through
 "a[4][3][0]"), each of which is treated as an array with three elements.
 This is morally equivalent to what you'd get if you worked around the
 limitation in current GLSL via:

    struct ArrayBottom { vec4 c[3]; };
    struct ArrayMid    { ArrayBottom b[3]; };
    uniform ArrayMid   a[5];

 which would enumerate "a[0].b[0].c[0]" through "a[4].b[3].c[0]".

Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

i965: Don't hardcode FS in "validation failed!" message.

Instead, print "Scalar VS" or "Scalar FS".  Otherwise it's really
confusing which stage is broken.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>

glsl: Support uint index in lower_vector_insert

The ES31-CTS.compute_shader.pipeline-compute-chain test case generates
an unsigned index by using gl_LocalInvocationID.x and
gl_LocalInvocationID.y as array indices.

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>

glsl: Support uint index in do_vec_index_to_cond_assign

The ES31-CTS.compute_shader.pipeline-compute-chain test case generates
an unsigned index by using gl_LocalInvocationID.x and
gl_LocalInvocationID.y as array indices.

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>

i965/fs: Ignore compute shaders in brw_nir_lower_inputs

The commit shown below caused compute shaders to hit the unreachable
in the default of the switch block. Since compute shaders don't have
any inputs, we can make brw_nir_lower_inputs a no-op for CS.

commit 2953c3d76178d7589947e6ea1dbd902b7b02b3d4
Author: Kenneth Graunke <kenneth@whitecape.org>
Date:   Fri Aug 14 15:15:11 2015 -0700

    i965/vs: Map scalar VS input locations properly; avoid tons of MOVs.

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i965/fs: Simplify FS in brw_nir_lower_inputs to only support scalar mode

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

mesa: remove unused functions in program.c

replace_registers() and adjust_param_indexes() were unused.

Reviewed-by: Matt Turner <mattst88@gmail.com>

mesa: minor indentation fix in _mesa_BindTextureUnit()

mesa: remove unused texUnit local in _mesa_BindTextureUnit()

The texture unit is error-checked before this and the texUnit var
is unused, so remove it.

Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>

st/fbo: use pipe_surface_release instead of pipe_surface_reference

pipe_surface_reference have problems with deleted contexts,
so use of pipe_surface_release might be more appropriate.

Fixes Wasteland 2 Director's Cut crash on start.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Brian Paul <brianp@vmware.com>

glsl: Enable split of lower UBOs and SSBO also for compute shaders

The split of Uniform blocks and shader storage block only loops
up to MESA_SHADER_FRAGMENT and igonres compute shaders.
This cause segfault when running the OpenGL ES 3.1 CTS tests
with GL_ARB_compute_shader enabled.

V2: Changed to use MESA_SHADER_STAGES instead of
MESA_SHADER_COMPUTE

Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Marta Lofstedt <marta.lofstedt@linux.intel.com>

glsl: Include util/strndup.h.

Fixes Windows builds.

Trivial.

glsl: calculate TOP_LEVEL_ARRAY_SIZE and STRIDE when adding resources

Patch moves existing calculation code from shader_query.cpp to happen
during program resource list creation.

No Piglit or CTS regressions were observed during testing.

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

glsl: add top level array size and stride to gl_uniform_storage

Patch adds 2 new fields to gl_uniform_storage so that we don't need to
calculate these values during runtime shader queries. This is required by
upcoming changes to free GLSL IR after linking.

Patch moves 3 booleans inside structure so that structure size stays the
same after this change.

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

i965: Adapt SSBOs to work with their own separate index space

Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>

glsl/lower_ubo_reference: lower UBOs and SSBOs to separate index spaces

Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>

mesa: Add {Num}UniformBlocks and {Num}ShaderStorageBlocks to gl_shader{_program}

These arrays provide backends with separate index spaces for UBOS and SSBOs.

Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>

mesa: Rename {Num}UniformBlocks to {Num}BufferInterfaceBlocks

Currently, these arrays in gl_shader and gl_shader_program hold both
UBOs and SSBOs, so this looks like a better name. We were already
using NumBufferInterfaceBlocks in gl_shader_program, so this makes
things more consistent as well.

In a later patch we will add {Num}UniformBlocks and
{Num}ShaderStorageBlocks which will contain only references to
UBOs and SSBOs respectively that will provide backends with
a separate index space for both types of objects.

Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>

glsl: Fix variable_referenced() for vector_{extract,insert} expressions

We get these when we operate on vector variables with array accessors
(i.e. things like a[0] where 'a' is a vec4). When we call variable_referenced()
on these expressions we want to return a reference to 'a' instead of NULL.

This fixes a problem where we pass a[0] as the first argument to an atomic
SSBO function that expects a buffer variable. In order to check this, we use
variable_referenced(), but that is currently returning NULL in this case, since
the underlying rvalue is a vector_extract expression.

Tested-by: Markus Wick <markus@selfnet.de>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>

nir: split SSBO min/max atomic instrinsics into signed/unsigned versions

NIR is typeless so this is the only way to keep track of the
type to select the proper atomic to use.

v2:
  - Use imin,imax,umin,umax for the intrinsic names (Connor Abbott)
  - Change message for unreachable paths (Michael Schellenberger)

Tested-by: Markus Wick <markus@selfnet.de>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i965/vec4: fix indentation in vec4_visitor::calculate_live_intervals

Reviewed-by: Francisco Jerez <currojerez@riseup.net>

i965/fs: Fix indentation in fs_live_variables::compute_start_end

Reviewed-by: Francisco Jerez <currojerez@riseup.net>

mesa: clean up comments for gl_current_attrib struct

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

vbo: make void vbo_exec_BeginVertices() static

Not called from any other file.  Rename and move before use.

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

vbo: document vbo_exec_context fields

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

vbo: minor clean-ups for vbo_exec_fixup_vertex()

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

vbo: add assertion in ATTR_UNION macro

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

vbo: add comments, braces in ATTR_UNION() in vbo_exec_api.c

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

vbo: fix whitespace in vbo_exec_draw.c

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

vbo: move 'tmp' var initialization

Improve readability a bit.

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

vbo: improve fprintf() formatting

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

vbo: simplify vertex array initializations in vbo_context.c

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

vbo: get rid of needless NR_MAT_ATTRIBS constant

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

vbo: fix incorrect switch statement in init_mat_currval()

The variable 'i' is a value in [0, MAT_ATTRIB_MAX-1] so subtracting
VERT_ATTRIB_GENERIC0 gave a bogus value and we executed the default
switch clause for all loop iterations.

This doesn't fix any known issues but was clearly incorrect.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

mesa: pass caller name to create_textures()

Simpler than the dsa flag approach.

glsl: fix matrix stride calculation for std430's row_major matrices with two columns

This is the result of applying several rules:

From OpenGL 4.3 spec, section 7.6.2.2 "Standard Uniform Block Layout":

"2. If the member is a two- or four-component vector with components
consuming N basic machine units, the base alignment is 2N or 4N,
respectively."
[...]
"4. If the member is an array of scalars or vectors, the base alignment
and array stride are set to match the base alignment of a single array
element, according to rules (1), (2), and (3), and rounded up to the
base alignment of a vec4."
[...]
"7. If the member is a row-major matrix with C columns and R rows, the
matrix is stored identically to an array of R row vectors with C
components each, according to rule (4)."
[...]
"When using the std430 storage layout, shader storage blocks will be
laid out in buffer storage identically to uniform and shader storage
blocks using the std140 layout, except that the base alignment and
stride of arrays of scalars and vectors in rule 4 and of structures in
rule 9 are not rounded up a multiple of the base alignment of a vec4."

In summary: vec2 has a base alignment of 2*N, a row-major mat2xY is
stored like an array of Y row vectors with 2 components each. Because
of std430 storage layout, the base alignment of the array of vectors
is not rounded up to vec4, so it is still 2*N.

Fixes 15 dEQP tests:

dEQP-GLES31.functional.ssbo.layout.single_basic_type.std430.row_major_lowp_mat2
dEQP-GLES31.functional.ssbo.layout.single_basic_type.std430.row_major_mediump_mat2
dEQP-GLES31.functional.ssbo.layout.single_basic_type.std430.row_major_highp_mat2
dEQP-GLES31.functional.ssbo.layout.single_basic_type.std430.row_major_lowp_mat2x3
dEQP-GLES31.functional.ssbo.layout.single_basic_type.std430.row_major_mediump_mat2x3
dEQP-GLES31.functional.ssbo.layout.single_basic_type.std430.row_major_highp_mat2x3
dEQP-GLES31.functional.ssbo.layout.single_basic_type.std430.row_major_lowp_mat2x4
dEQP-GLES31.functional.ssbo.layout.single_basic_type.std430.row_major_mediump_mat2x4
dEQP-GLES31.functional.ssbo.layout.single_basic_type.std430.row_major_highp_mat2x4
dEQP-GLES31.functional.ssbo.layout.single_basic_array.std430.row_major_mat2
dEQP-GLES31.functional.ssbo.layout.single_basic_array.std430.row_major_mat2x3
dEQP-GLES31.functional.ssbo.layout.single_basic_array.std430.row_major_mat2x4
dEQP-GLES31.functional.ssbo.layout.instance_array_basic_type.std430.row_major_mat2
dEQP-GLES31.functional.ssbo.layout.instance_array_basic_type.std430.row_major_mat2x3
dEQP-GLES31.functional.ssbo.layout.instance_array_basic_type.std430.row_major_mat2x4

v2:
- Add spec quote in both commit log and code (Timothy)

Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Reviewed-by: Marta Lofstedt <marta.lofstedt@intel.com>

r600/vce: enable VCE for trinity/richland

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

r600/uvd: disable UVD tiling by default

It has only minimal advantages for post processing and doesn't work with VCE.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

r600g: Enable GL_ARB_gpu_shader5 extension

Signed-off-by: Glenn Kennard <glenn.kennard@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

r600g/sb: SB support for UBO indexing

Signed-off-by: Glenn Kennard <glenn.kennard@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

r600g/sb: Support gs5 sampler indexing (v2)

[airlied: v2 cayman fixups]

Signed-off-by: Glenn Kennard <glenn.kennard@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

i965/vs: Simplify fs_visitor's ATTR file.

Previously, ATTR was indexed by VERT_ATTRIB_* slots; at the end of
compilation, assign_vs_urb_setup() translated those into GRF units,
and converted ATTR to HW_REGs.

This patch moves the transslation earlier, making ATTR work in terms of
GRF units from the beginning.  assign_vs_urb_setup() simply has to add
the number of payload registers and push constants to obtain the final
hardware GRF number.  (We can't do this earlier as those values aren't
known.)

ATTR still supports reg_offset; however, it's simply added to reg.
It's not clear whether this is valuable or not.

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

nouveau: avoid double-emitting fence

The act of ensuring that there is space can cause a flush to happen,
which will emit the current screen fence. If that is the fence we're
trying to wait on, then it will have been emitted as a result of doing
the PUSH_SPACE. Don't attempt to emit it a second time.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Fixes: 8053c9208f (nouveau: avoid emitting new fences unnecessarily)
Cc: mesa-stable@lists.freedesktop.org

glsl: Never allow the sequence operator anywhere in an array size

Fixes:

    spec/glsl-1.20/compiler/structure-and-array-operations/array-size-sequence-in-parenthesis.vert
    spec/glsl-es-1.00/compiler/array-sized-by-sequence-in-parenthesis.vert
    spec/glsl-es-3.00/compiler/array-sized-by-sequence-in-parenthesis.vert

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

glsl: In later GLSL versions, sequence operator is cannot be a constant expression

Fixes:
    ES3-CTS.shaders.negative.constant_sequence

    spec/glsl-es-3.00/compiler/global-initializer/from-sequence.vert
    spec/glsl-es-3.00/compiler/global-initializer/from-sequence.frag

v2: Fix a couple copy-and-paste mistake in the spec quotations.
Suggested by Matt.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Cc: "10.6 11.0" <mesa-stable@lists.freedesktop.org>

glsl: Add method to determine whether an expression contains the sequence operator

This will be used in the next patch to enforce some language sematics.

v2: Fix inverted logic in
ast_function_expression::has_sequence_subexpression.  The method
originally had a different name and a different meaning.  I fixed the
logic in ast_to_hir.cpp, but I only changed the names in
ast_function.cpp.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Marta Lofstedt <marta.lofstedt@intel.com> [v1]
Reviewed-by: Matt Turner <mattst88@gmail.com>
Cc: "10.6 11.0" <mesa-stable@lists.freedesktop.org>

glsl: Restrict initializers for global variables to constant expression in ES

v2: Combine this check with the existing const and uniform checks.  This
change depends on the previous patch (glsl: Only set
ir_variable::constant_value for const-decorated variables).

Fixes:

    ES2-CTS.shaders.negative.initialize
    ES3-CTS.shaders.negative.initialize

    spec/glsl-es-1.00/compiler/global-initializer/from-attribute.vert
    spec/glsl-es-1.00/compiler/global-initializer/from-uniform.vert
    spec/glsl-es-1.00/compiler/global-initializer/from-uniform.frag
    spec/glsl-es-1.00/compiler/global-initializer/from-global.vert
    spec/glsl-es-1.00/compiler/global-initializer/from-global.frag
    spec/glsl-es-1.00/compiler/global-initializer/from-varying.frag
    spec/glsl-es-3.00/compiler/global-initializer/from-uniform.vert
    spec/glsl-es-3.00/compiler/global-initializer/from-uniform.frag
    spec/glsl-es-3.00/compiler/global-initializer/from-in.vert
    spec/glsl-es-3.00/compiler/global-initializer/from-in.frag
    spec/glsl-es-3.00/compiler/global-initializer/from-global.vert
    spec/glsl-es-3.00/compiler/global-initializer/from-global.frag

Note: spec/glsl-es-3.00/compiler/global-initializer/from-sequence.*
still fail because the result of a sequence operator is still considered
to be a constant expression.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=92304
Reviewed-by: Tapani Pälli <tapani.palli@intel.com> [v1]
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com> [v1]
Reviewed-by: Matt Turner <mattst88@gmail.com>
Cc: "10.6 11.0" <mesa-stable@lists.freedesktop.org>

glsl: Only set ir_variable::constant_value for const-decorated variables

Right now we're also setting for uniforms, and that doesn't seem to hurt
things.  The next patch will make general global variables in GLSL ES,
and those definitely should not have constant_value set!

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Cc: "10.6 11.0" <mesa-stable@lists.freedesktop.org>

glsl: Use constant_initializer instead of constant_value to determine whether to keep an unused uniform

This even matches the comment "uniform initializers are precious, and
could get used by another stage."

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Cc: "10.6 11.0" <mesa-stable@lists.freedesktop.org>

glsl/linker: Use constant_initializer instead of constant_value to initialize uniforms

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Cc: "10.6 11.0" <mesa-stable@lists.freedesktop.org>

ff_fragment_shader: Use binding to set the sampler unit

This is the way layout(binding=xxx) works from GLSL.  The old method
just happened to work (and significantly predated support for
layout(binding=xxx)), but future changes will break this.

v2: Remove some stale comments.  Suggested by Matt and Chris Forbes.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Cc: "10.6 11.0" <mesa-stable@lists.freedesktop.org>

glsl: Allow built-in functions as constant expressions in OpenGL ES 1.00

In d4a24745 (August 2012), Paul made functions calls not be constant
expressions in GLSL ES 1.00.  Since this feature was added in desktop
GLSL 1.20, we believed that it was added in GLSL ES 3.00.  That turns
out to be completely wrong.  Built-in functions have always been allowed
as constant expressions in GLSL ES, and the patch adds the (many) spec
quotations to prove it.

While we never previously encountered this, a later patch enforces a GLSL
ES 1.00 rule that global variable initializers must be constant
expressions.  Without this fix, several dEQP tests fail.

Fixes:

    tests/spec/glsl-es-1.00/compiler/const-initializer/from-function.frag
    tests/spec/glsl-es-1.00/compiler/const-initializer/from-function.vert
    tests/spec/glsl-es-1.00/compiler/const-initializer/from-sequence-in-function.frag
    tests/spec/glsl-es-1.00/compiler/const-initializer/from-sequence-in-function.vert

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Cc: "10.0 10.1 10.2 10.3 10.4 10.5 10.6 11.0" <mesa-stable@lists.freedesktop.org>
Yes, I know we don't maintain stable branches that far back, but that
*is* how far back this bug goes!

u_vbuf: fix vb slot assignment for translated buffers

Vertex attributes of different categories (constant/per-instance/
per-vertex) go into different buffers for translation, and this is now
properly reflected in the vertex buffers passed to the driver.

Fixes e.g. piglit's point-vertex-id divisor test.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

glsl: include variable name in error messages about initializers

Also fix style / wrong indentation along the way and make the messages
more uniform.

Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

glsl: shader outputs cannot have initializers

GLSL Spec 4.20.8, 4.3 Storage Qualifiers:

"Initializers in global declarations may only be used in declarations of
 global variables with no storage qualifier, with a const qualifier or
 with a uniform qualifier."

We do this for input variables, but not for output variables. AMD and NVIDIA
proprietary drivers don't allow this either.

Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

i965: Fix unsafe pointer when dumping VS/FS IR

For the VS and FS stages that use ARB_vertex_program or
ARB_fragment_program we don't have a shader program, however,
when debuging is enabled, we call brw_dump_ir like this:

brw_dump_ir("vertex", prog, &vs->base, &vp->program.Base);

where vs will be NULL (since prog is NULL).

As pointed out by Chris, this &vs->base is not really a dereference,
it simply computes a new address that just happens to be 0x0 because
the offset of base in brw_shader is 0. Then brw_dump_ir will see a
NULL pointer and not do anything. This is why this does not crash at
the moment. However, this does not look very safe (it would crash
for any location of base that is not the first in brw_shader), so
patch it to prevent a potential (even if unlikely) problem in the
future.

Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

mesa/uniforms: fix get_uniform for doubles (v2)

The initial glGetUniformdv support didn't cover all the
casting cases that are apparantly legal, and cts seems to
test for them.

I've updated the piglit test to cover these cases now.

v2: fix indentation - it's all broken in this file (Ilia)
fix src/dst index tracking in light of fp64 support (Ilia)

cc: "11.0" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Dave Airlie <airlied@redhat.com>

ilo: improve Gen8 defines based on its PRMs

i965/vec4: Implement b2f and b2i using negation.

Curro added this in commit 3ee2daf23d (before the vec4/NIR backend was
added) but it was missed in the new NIR backend. Add it there as well.

instructions in affected programs:     1857 -> 1810 (-2.53%)
helped:                                15

Reviewed-by: Francisco Jerez <currojerez@riseup.net>

nv50,nvc0: don't base decisions on available pushbuf space

We still have to push everything out, might as well kick earlier and
flip pushbufs when we know we'll need it. This resolves some issues with
the new policy of making sure that we always leave a bit of room at the
end for fences.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Fixes: 47d11990b (nouveau: make sure there's always room to emit a fence)
Cc: mesa-stable@lists.freedesktop.org

nouveau: avoid emitting new fences unnecessarily

Right now we emit on every kick, but this is only necessary if something
will ever be able to observe that the fence completed. If there are no
refs, leave the fence alone and emit it another day.

This also happens to work around an issue for the kick handler -- a kick
can be a result of e.g. nouveau_bo_wait or explicit kick, or it can be
due to lack of space in the pushbuf. We want the emit to happen in the
current batch, so we want there to always be enough space. However an
explicit kick could take the reserved space for the implicitly-triggered
kick's fence emission if it happened right after. With the new mechanism,
hopefully there's no way to cause two fences to be emitted into the same
reserved space.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Fixes: 47d11990b (nouveau: make sure there's always room to emit a fence)
Cc: mesa-stable@lists.freedesktop.org

nvc0: make use of NVC0_COMPUTE_CLASS for GF110

In theory, GF110+ should also support NVC8_COMPUTE_CLASS but, in practice,
a ILLEGAL_CLASS dmesg fail appears when using it.

This fixes compute support and MP performance counters on GF110.

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

i965/gs: Make MAX_GS_INPUT_VERTICES a #define in brw_context.h.

For scalar VS, I'll need this in brw_fs.cpp as well.  It seems silly to
redeclare it in three places.

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

i965/vs: Map scalar VS input locations properly; avoid tons of MOVs.

Previously, we used nir_lower_io with the scalar type_size function,
which mapped VERT_ATTRIB_* locations to...some numbers.  Then, in
fs_visitor::nir_setup_inputs(), we created temporaries indexed by
those numbers, and emitted MOVs from the actual ATTR registers to
those temporaries.  Virtually all of these were copy propagated away,
but it's still ugly.

This patch reworks our input lowering to produce NIR lower_input
intrinsics that properly index into the ATTR file, so we can access
it directly.

No changes in shader-db.

v2: Fix unreachable() message (Ken), update commit message (Matt).

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

i965/vs: Fix a subtlety in the nr_attributes == 0 workaround.

nr_attributes is used to compute first_non_payload_grf, which is the
first register we're allowed to use for ordinary register allocation.

The hardware requires us to read at least one pair of values, but we're
completely free to overwrite that garbage register with whatever we like.

Instead of altering nr_attributes, we should alter urb_read_length, which
only affects the amount we ask the VF to read.  This should save us a
register in trivial cases (which admittedly isn't very useful).

While we're at it, improve the explanation in the comments.

v2: Actually do what I said (caught by Ilia).

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>

i965/vs: Unify URB entry size/read length calculations between backends.

Both the vec4 and scalar VS backends had virtually identical URB entry
size and read length calculations.  We can move those up a level to
backend-agnostic code and reuse it for both.

Unfortunately, the backends need to know nr_attributes to compute
first_non_payload_grf, so I had to store that in prog_data.  We could
use urb_read_length, but that's nr_attributes rounded up to a multiple
of two, so doing so would waste a register in some cases.

There's more code to be removed in the vec4 backend, but that will
come in a follow-on patch.

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

i965/cfg: Fix cfg_t::dump() when a block has no immediate dominator.

Switch statements introduce a bogus loop with an unconditional break at
the end of the loop, just before the while...so the while is unreachable
and has no immediate dominator.

v2: With less exuberance

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

docs: add news item and link release notes for 11.0.3

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

docs: add sha256 checksums for 11.0.3

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
(cherry picked from commit b4bfea0094d0037b1f66f3437e44e333f2f0c3f6)

docs: add release notes for 11.0.3

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
(cherry picked from commit 914966befcd57764941405707d8f57d3e7e7f768)

i965/gen8: Remove gen<8 checks in gen8 code

Some assertions in gen8_surface_state.c checked for gen < 8.

Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>

i965/gen9: Enable rep clears on gen9

The (gen < 9) check in brw_clear() was too broad. It disabled all types
of fast color clears:
    a. singlesample rep clears
    b. singlesample MCS fast clears
    c. multisample MCS fast clears

The MCS clears are still buggy, but the rep clear works well. So let's
enable it.

Reviewed-by: Neil Roberts <neil@linux.intel.com>

i965/gen9: Disable MCS for 1x color surfaces

Fast color clears are disabled for gen9 (see the checks in
brw_meta_fast_clear), so there is no reason to allocate the MCS and
track its clear/resolve state.

Reviewed-by: Neil Roberts <neil@linux.intel.com>

tgsi: (trivial) kill c99-ism.

program: remove _mesa_init_*_program wrappers

They didn't do anything useful.

Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

program: remove other unused functions

Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

program: remove unused cloning and combining functions

Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

program: remove unused function _mesa_find_line_column

Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

st/mesa: release the glsl_to_tgsi visitor after translation

Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Tested-by: Brian Paul <brianp@vmware.com>

st/mesa: translate tessellation shaders into TGSI when we get them

Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Tested-by: Brian Paul <brianp@vmware.com>

st/mesa: translate geometry shaders into TGSI when we get them

Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Tested-by: Brian Paul <brianp@vmware.com>

st/mesa: translate fragment shaders into TGSI when we get them

Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Tested-by: Brian Paul <brianp@vmware.com>

st/mesa: translate vertex shaders into TGSI when we get them

The translate functions is split into two:
- translation to TGSI
- creating the variant (TGSI transformations only)

Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Tested-by: Brian Paul <brianp@vmware.com>

st/mesa: fix glDrawPixels with a texture

The samplers for DrawPixels data and the pixel map are assigned to slots
which don't overlap with the existing sampler slots.

The texture coordinates for the user texture are uploaded as a constant.

Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Tested-by: Brian Paul <brianp@vmware.com>

st/mesa: implement DrawPixels shader transformation using tgsi_transform_shader

Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Tested-by: Brian Paul <brianp@vmware.com>

st/mesa: make Z/S drawpix shaders independent of variants, don't use Mesa IR v2

- there is no connection to user fragment shaders, so having these as
  shader variants makes no sense
- don't use Mesa IR, use TGSI
- don't create gl_fragment_program, just create the shader CSO

v2: generate exactly the same shader as before to fix llvmpipe

Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Tested-by: Brian Paul <brianp@vmware.com>

st/mesa: implement glBitmap shader transformation using tgsi_transform_shader

Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Tested-by: Brian Paul <brianp@vmware.com>

st/mesa: remove old emulation for VS and FS variants

Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Tested-by: Brian Paul <brianp@vmware.com>

st/mesa: use TGSI utility to emulate features for FS variants

Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Tested-by: Brian Paul <brianp@vmware.com>

st/mesa: use TGSI utility to emulate features for VS variants

Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Tested-by: Brian Paul <brianp@vmware.com>

st/mesa: decrease the size of st_vertex_program

The other variables can't be moved.

Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Tested-by: Brian Paul <brianp@vmware.com>

st/mesa: inline st_prepare_vertex_program

No other shader stage has a "prepare" function.
This will allow removing some variables from st_vertex_program.

Also, prepare_fragment_program was a dead prototype.

Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Tested-by: Brian Paul <brianp@vmware.com>

tgsi/scan: add info about declared samplers (v2)

v2: get it from declarations, not instructions

tgsi: add a utility for emulating some GL features

st/mesa will use this, but drivers can use it too.

Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Tested-by: Brian Paul <brianp@vmware.com>

mesa: call ProgramStringNotify for fixed-function vertex programs

Drivers weren't notified about this at all.
This allows disabling on-demand compilation in drivers.

Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Tested-by: Brian Paul <brianp@vmware.com>

glsl: move shader_enums into nir

First step towards inverting the dependency between glsl and nir (so nir
can be used without glsl).  Also solves this issue with 'make distclean'

  Making distclean in mesa
  make[2]: Entering directory '/mnt/sdb1/Src64/Mesa-git/mesa/src/mesa'
  Makefile:2486: ../glsl/.deps/shader_enums.Plo: No such file or directory
  make[2]: *** No rule to make target '../glsl/.deps/shader_enums.Plo'. Stop.
  make[2]: Leaving directory '/mnt/sdb1/Src64/Mesa-git/mesa/src/mesa'
  Makefile:684: recipe for target 'distclean-recursive' failed
  make[1]: *** [distclean-recursive] Error 1
  make[1]: Leaving directory '/mnt/sdb1/Src64/Mesa-git/mesa/src'
  Makefile:615: recipe for target 'distclean-recursive' failed
  make: *** [distclean-recursive] Error 1

Reported-by: Andy Furniss <adf.lists@gmail.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Rob Clark <robclark@freedesktop.org>

mesa: Get rid of texture-dependent image unit derived state.

The point is to avoid having to re-validate all image units when
_NEW_TEXTURE is flagged, which can be expensive if the driver exposes
a large number of image units.  This has been reported to fix a 36%
performance regression in the Synmark2 Multithread benchmark on the
i965 driver which exposes 192 image units.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=91788
Reported-by: Wendy Wang <wendy.wang@intel.com>
Tested-by: Ye Tian <yex.tian@intel.com>
CC: "11.0" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>