From the ARB_program_interface_query specification:
"For the property TOP_LEVEL_ARRAY_SIZE, a single integer
identifying the number of active array elements of the top-level
shader storage block member containing to the active variable is
written to <params>. If the top-level block member is not
declared as an array, the value one is written to <params>. If
the top-level block member is an array with no declared size, the
value zero is written to <params>."
"For the property TOP_LEVEL_ARRAY_STRIDE, a single integer
identifying the stride between array elements of the top-level
shader storage block member containing the active variable is
written to <params>. For top-level block members declared as
arrays, the value written is the difference, in basic machine
units, between the offsets of the active variable for consecutive
elements in the top-level array. For top-level block members not
declared as an array, zero is written to <params>."
v2: move top_level_array_size and stride into nir_link_uniforms_state
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
ARB_gl_spirv points that the offset must be explicit, however this is
true for 'root' types. For complex types, like struct members or
arrays of arraya, it needs to be computed.
We are not using the offset stored in the gl_buffer_variables during
the uniform blocks linking because currently we do not have a way to
relate a gl_buffer_variable with its corresponding gl_uniform_storage.
The GLSL path uses the name for that, but we can not rely on that
because names are optional in SPIR-V.
Notice that uniforms non-backed by a buffer object will have an offset
equal to -1, like in the GLSL path.
v2: add offset and var_is_in_block as per-variable state in
nir_link_uniforms_state (Arcady)
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
v2: added TODO comment hinting possible future refactoring of
nir_build_program_resource_list and build_program_resource_list,
to avoid code duplication (Alejandro, to explicitly reflect a
valid concern from Timothy during the review).
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
v2: "nir/linker: Use the stageref when adding UBO/SSBO resources"
squashed on this one (Timothy)
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Binding comparison is used to determine the block the uniform is part
of. Note that to do the binding comparison we need the information in
UniformBlocks[] and ShaderStorageBlocks[] to be available, so we have
to call gl_nir_link_uniform_blocks() before linking the uniforms.
v2: add missing break (Timothy)
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Mirror RadeonSI. This also fixes crashes in addrlib.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
c8665005: ("intel/compiler: Don't always require precise lowering of flrp")
forgot to remove some comments that didn't apply any more after the
change.
Signed-off-by: Andres Gomez <agomez@igalia.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrnd.net>
This was probably not caught before because no supported test was
exercising the flrp lowering with other bit size different than 32.
With the arrival of VK_KHR_shader_float_controls we will have some of
those and, unless we keep the bit size, we will end with something
like:
../src/compiler/nir/nir_builder.h:420: nir_builder_alu_instr_finish_and_insert: Assertion `src_bit_size == bit_size' failed.
Fixes: 158370ed2a ("nir/flrp: Add new lowering pass for flrp instructions")
Fixes: ae02622d8f ("nir/flrp: Lower flrp(a, b, c) differently if another flrp(_, b, c) exists")
Signed-off-by: Andres Gomez <agomez@igalia.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrnd.net>
With separate stencil usage, we can't just grab the usage from the image
directly and have to consider the per-aspect usage instead.
Fixes: 1be38f9178 "anv:Use VK_EXT_separate_stencil_usage to avoid..."
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Don't rely on them being preinitialized to zero; this can cause junk to
appear on the wire.
Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
A bunch of these are from asserts not being compiled in 32-bit mode
(once Erik's ASSERTABLE stuff is merged, we'll want to switch).
Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
This includes metadata as well. On GFX10, we have to invalidate
the L2 metadata cache when shaders read DCC.
Note that we still have to implement GFX10 coherency by
introducing INV_L2_METATADA but for now just flush L2.
This fixes a corruption with DCC and Talos.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
This allows to remove a mov of 1/-1, as it is implicit with the
operation.
As with atomic inc/dec/add, usual shader-db set doesn't include any
GLES shader using it. So using as workaround vk-gl-cts shaders, we get
this:
total instructions in shared programs: 1217013 -> 1217006 (<.01%)
instructions in affected programs: 53 -> 46 (-13.21%)
helped: 2
HURT: 0
One of the helped shader went from 40 to 34 instructions.
Reviewed-by: Eric Anholt <eric@anholt.net>
And moved to new auxiliar method v3d40_image_load_store_tmu_op,
equivalent to the nir_to_nir v3d_general_tmu_op, to clean-up a little.
Reviewed-by: Eric Anholt <eric@anholt.net>
Among other things, this avoid the need of loading 1/-1 constants (so
one less operation).
The removed comment suggest the option of adding support on NIR for
inc/dec. Intel just uses an auxiliar method to get which hw operation
is needed, so no lowering is needed. And at the same time, being so
small, seems unreasonable to try to add a general one on NIR
itself. It is more easy to just adapt the method here (that is what
the patch does right now).
It is worth to note that we are not getting any change on shader-db
stats because all those methods are used on the usual shader-db set
with shaders needing GLSL > 4.2. In general there aren't too many GLSL
ES 3.1 tests.
As an alternative, we captured the GLES3/GLSL31/GLS32 used on
vk-gl-cts, even if that is not a real life usage of shaders. With
those we get the following:
total instructions in shared programs: 1217022 -> 1217013 (<.01%)
instructions in affected programs: 117 -> 108 (-7.69%)
helped: 6
HURT: 0
helped stats (abs) min: 1 max: 2 x̄: 1.50 x̃: 1
helped stats (rel) min: 3.57% max: 10.00% x̄: 8.09% x̃: 9.09%
95% mean confidence interval for instructions value: -2.07 -0.93
95% mean confidence interval for instructions %-change: -10.54% -5.64%
Instructions are helped.
Note that the shaders helped are really low because most of the
vk-gl-cts tests using AtomicInc/Dec/Add are mostly used on compute
shaders. Although right now there is a branch around with CS support,
the usual is doing the stats against master.
Reviewed-by: Eric Anholt <eric@anholt.net>
They are already defined, although is a slightly different format on
the generated packet headers, so it was needed to change how it is
used on nir_to_vir.
In addition to allow to remove some duplicated headers, it will allow
to define just one get_op_for_atomic_add aux method later to support
using inc/dec instead of add of 1/-1.
Reviewed-by: Eric Anholt <eric@anholt.net>
This implements support for OpenGL logic operations by emitting code to read
from the TLB if needed and blending the fragment output accordingly. It is
similar to VC4's blend lowering pass, but exclusive to logic operations, since
blending is otherwise supported in hardware.
The pass doesn't handle MSAA targets yet.
Fixes the following piglit tests:
spec/!opengl 1.0/gl-1.0-logicop/*
spec/!opengl 1.1/gl-1.1-xor
spec/!opengl 1.1/gl-1.1-xor-copypixels
It also fixes text cursor rendering in Libreoffice with the GTK+2 theme, which
is rendered via glamor using the XOR logic operation.
v2: fix checks for allowed variable location and maximum render target (Eric)
Reviewed-by: Eric Anholt <eric@anholt.net>
Until now we have always been emitting our scoreboard locks on the last thread
switch to improve parallelism. We did this by emitting our last thread switch
right before our tlb writes at the very end of the program, where we know that
we are outside control flow.
Unfortunately, this strategy is not valid when we have tlb color reads too, as
these will happen before this point in the program and can happen inside
control flow.
To fix this we always emit a thread switch before the first tlb load and if we
see additional thread switches after that point, we change the strategy to lock
on the first thread switch.
v2: change the solution so it is expected to work in more scenarios (Eric).
Reviewed-by: Eric Anholt <eric@anholt.net>
We will be emitting this intrinsic to signal TLB color loads when we implement
OpenGL logic operations, where we need to blend the fragment shader color
output with the existing color in the render target.
Per-sample TLB reads are not supported yet.
v2: fix the offset into the color_reads array (Eric).
Reviewed-by: Eric Anholt <eric@anholt.net>
This is intended to be used, for example, with OpenGL logic operations. It
takes a render target as source and a sample index in the base index for
MSAA color reads.
v2: drop the CAN_ELIMINATE and CAN_REORDER flags (Eric).
Reviewed-by: Eric Anholt <eric@anholt.net>
We need to scale the size of these arrays to consider up to
V3D_MAX_DRAW_BUFFERS render targets and 4 components per color.
v2: we want to store each color component separately, so scale by 4 too.
Reviewed-by: Eric Anholt <eric@anholt.net>
The ldtlbu version will read an implicit uniform with the TLB read
specifier and should be used for the first read in a sequence
of TLB reads (unless the default configuration is valid, in which
case we can use ldtlb). The ldtlb version is used for any subsequent
TLB read in the sequence.
Reviewed-by: Eric Anholt <eric@anholt.net>
We already have code to print these signals but the early return in the code
that checks if any signals are present present was missing the checks for them,
so it would skip printing them unless they were paired with other signals.
Reviewed-by: Eric Anholt <eric@anholt.net>
Antia Puentes
Alejandro Piñeiro
Samuel Pitoiset
Andres Gomez
Jason Ekstrand
Alyssa Rosenzweig
Yevhenii Kolesnikov
Kenneth Graunke
Iago Toral Quiroga