the naming is a bit confusing no matter how you look at it. Within SPIR-V
"global" memory is memory accessible from all threads. glsl "global" memory
normally refers to shader thread private memory declared at global scope. As
we already use "shared" for memory shared across all thrads of a work group
the solution where everybody could be happy with is to rename "global" to
"private" and use "global" later for memory usually stored within system
accessible memory (be it VRAM or system RAM if keeping SVM in mind).
glsl "local" memory is memory only accessible within a function, while SPIR-V
"local" memory is memory accessible within the same workgroup.
v2: rename local to function as well
v3: rename vtn_variable_mode_local as well
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
This has never functioned and probably wont ever function, due to the
way gallium media state trackers are architected and the tegra video
decoder is architected.
Cc: Thierry Reding <thierry.reding@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Fixes: 1755f608f5
("tegra: Initial support")
The version exported by LLVM in its CMake configuration files can
include the “svn” suffix when building a development version (for
example “8.0.0svn”). However the exported clang headers are still found
under “lib/clang/8.0.0/”, without the “svn” suffix.
Meson takes care of removing the “svn” suffix from the version when
using the dependency’s `version()` method.
This processing is already performed in “configure.ac” when using
autotools.
Signed-off-by: Pierre Moreau <pierre.morrow@free.fr>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
In the following scenario :
1. Create image format R8G8B8A8_UNORM
2. Create image view format R8G8B8A8_SRGB
3. Clear the view through a sub pass to a particular color
4. Barrier on the image to from color attachment to source transfer
5. Copy the image into a linear buffer to check the content
The step 4 resolving the clear color is unaware of the SRGB format of
the view, because the blorp resolve operations operate on images the
color associated with the resolve will not operate on SRGB format but
UNORM. Leading to the wrong color being written into surfaces.
This change forces a clear color resolve at the end of the render pass
so following resolves won't have to deal with the clear color with a
format that doesn't match the image's format.
On gfxbench vulkan_5_normal 1280x720, this appear to cost us ~0.5fps,
from 49.316 down to 48.949.
v2: Only fast clear resolve when image & view have different formats
(Lionel)
v3: Update warning (Jason)
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108911
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Suggested-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Cc: mesa-stable@lists.freedesktop.org
Resolve operations can happen when dealing with view (begin/end
subpasses) in which case the view's format needs to apply, not the
image's format.
v2: Relayout arguments of a ccs_op() call (Jason)
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Suggested-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108911
Cc: mesa-stable@lists.freedesktop.org
Fixes following errors from valgrind output:
==23388== Conditional jump or move depends on uninitialised value(s)
==23388== at 0x48B4924: loader_dri3_drawable_init (loader_dri3_helper.c:381)
==23388== by 0x48A97D2: dri3_create_drawable (dri3_glx.c:386)
==23388== by 0x489E190: driFetchDrawable (dri_common.c:369)
==23388== by 0x48A9187: dri3_bind_context (dri3_glx.c:195)
==23388== by 0x488B75C: MakeContextCurrent (glxcurrent.c:220)
==23388== by 0x488B8DB: glXMakeCurrent (glxcurrent.c:267)
==23388== by 0x10A987: ??? (in /usr/bin/glxgears)
==23388== by 0x4BEB412: (below main) (in /usr/lib64/libc-2.28.so)
==23388==
==23388== Conditional jump or move depends on uninitialised value(s)
==23388== at 0x48B5A40: loader_dri3_swap_buffers_msc (loader_dri3_helper.c:923)
==23388== by 0x48A9B7E: dri3_swap_buffers (dri3_glx.c:587)
==23388== by 0x4887A81: glXSwapBuffers (glxcmds.c:857)
==23388== by 0x10ADED: ??? (in /usr/bin/glxgears)
==23388== by 0x4BEB412: (below main) (in /usr/lib64/libc-2.28.so)
Fixes: 2e12fe425f "loader/dri3: Enable adaptive_sync via _VARIABLE_REFRESH property"
Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
This stores the raster state and calls the correct primconvert interface
using the currently bound raster state.
Reviewed-By: Gert Wollny <gert.wollny@collabora.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
For now, it's hidden behind a cap. Hopefully, we can eventually drop
that along with all the manual offset code in spirv_to_nir.
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Tested-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
The choice of whether or not we should use block_load/store isn't a
choice between external and not so much as a choice between deref
instructions and manually calculated offsets. In vtn_pointer_from_ssa,
we guard the index+offset case behind vtn_pointer_uses_ssa_offset and
then branch out from there.
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Instead of baking in uvec2 for UBO and SSBO pointers and uint for push
constant and shared memory pointers, make it configurable.
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Previously, we hard-coded the rule about workgroup variables and the
builder lower_workgroup_access_to_offsets flag. Instead base it on the
handy helper we have for exactly this sort of thing.
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Variable pointers being well-defined across the block boundary requires
a couple of very specific SPIR-V validation rules. Normally, we'd trust
the validator to catch these but since CTS tests have been found in the
wild which violate them, we'll carry our own checks.
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
This new pass is for lowering explicitly laid out memory coming in from
SPIR-V or a similar source. It's quite a bit more complicated than the
normal lower_io because we have to be able to handle matrices. The
way the stride information is stored for matrices is awkward and dealing
with row-major matrices is especially painful.
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
This commit adds a new num_components value for intrinsic sources of -1
which means that it consumes everything and the number of components
effectively isn't validated. This is useful for deref sources which
just take the result of the deref and we leave it up to the driver to
decide what that size should be.
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
We added this assert when first moving derefs over to instructions to
ensure that deref chains could go all the way back to the variables.
Now that we're going to start using derefs for things that we can do
variable pointers on such as UBOs and SSBOs, we need to be able to run
derefs through phi nodes, selects, and basically anything else.
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
We already detect any incomplete deref chains (where the deref is used
for something other than another deref or a load/store) and flag the
variable as used thanks to deref_used_for_not_store. All that's left to
do is to properly skip casts when cleaning up.
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
This pass is used when, for instance, we lazily change the mode of
variables rather than replacing the variable with a new one. Since we
only do this in cases where we know we have full deref chains, it's ok
to just skip them in fixup_deref_modes.
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
The code which constructs deref paths already gives you the path
starting at the nearest deref_cast or deref_var. All we need to do for
casts is handle the case where the start of the path isn't a deref_var.
For ptr_as_array derefs, we just bail if we have any after the
divergence point between the two derefs. We may be able to do better in
the future but this works for now.
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
When handling casts, we can't blindly propagate the parent of a cast
into a ptr_as_array deref because doing so might loose the stride
information from the cast. Instead, before we can propagate into
ptr_as_array derefs, we need to check that the cast is a cast of an
array deref and that the stride matches. For other types of derefs, we
can continue to propagate casts as normal because they don't need the
stride. We also add an optimization which can combine a ptr_as_array
deref with it parent if it is also an array deref of some form.
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
These correspond directly to SPIR-V's OpPtrAccessChain. As such, they
treat whatever their parent gives them as if it's the first element in
some array and dereferences that array. If the parent is, itself, an
array deref, then the two indices can just be added together to get the
final array deref. However, it can also be used in cases where what you
have is a dereference to some random vec2 value somewhere. In this
case, we require a cast before the ptr_as_array and use the ptr_stride
field in the cast to provide a stride for the ptr_as_array derefs.
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
We're going to want to do more deref optimizations going forward and
this gives us a central place to do them. Also, cast propagation will
get a bit more complicated with the addition of ptr_as_array derefs.
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Instead of just storing the decorations in the vtn_type, propagate them
all the way through to the glsl_type. For array strides, this means we
need to handle them earlier so we break array stride handling into it's
own function and explicitly call it for both pointer and array types.
Due to type deduplication in the SPIR-V, we may have explicit layout
decorations on all sorts of types that don't actually want them. In
order to prevent these leaking into unfortunate places in NIR, we
explicitly strip them off before creating NIR variables and when casting
pointers to non-external memory.
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
SPIR-V allows for matrix and array types to be decorated with explicit
byte stride decorations and matrix types to be decorated row- or
column-major. This commit adds support to glsl_type to encode this
information. Because this doesn't work nicely with std430 and std140
alignments, we add asserts to ensure that we don't use any of the std430
or std140 layout functions with explicitly laid out types.
In SPIR-V, the layout information for matrices is applied to the parent
struct member instead of to the matrix type itself. However, this is
gets rather clumsy when you're walking derefs trying to compute offsets
because, the moment you hit a matrix, you have to crawl back the deref
chain and find the struct. Instead, we take the same path here as we've
taken in spirv_to_nir and put the decorations on the matrix type itself.
This also subtly adds support for strided vector types. These don't
come up in SPIR-V directly but you can get one as the result of taking a
column from a row-major matrix or a row from a column-major matrix.
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
This is C++ so we can just poke at the fields of glsl_type if we wish
and calling get_instance is way easier and more reliable than handling
each instance separately. While we're at it, we re-arrange the base
type labels to match the enum order and add 8-bit type support.
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
It was added in bce6f99875 even though it's completely redundant with
glsl_array_type().
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Previously, NIR had a single nir_var_uniform mode used for atomic
counters, UBOs, samplers, images, and normal uniforms. This commit
splits this into nir_var_uniform and nir_var_ubo where nir_var_uniform
is still a bit of a catch-all but the nir_var_ubo is specific to UBOs.
While we're at it, we also rename shader_storage to ssbo to follow the
convention.
We need this so that we can distinguish between normal uniforms and UBO
access at the deref level without going all the way back variable and
seeing if it has an interface type.
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
I have no idea how shader_storage made it into the list of banned
variable modes for stores but it clearly should be allowed. This only
doesn't cause us a problem today because we never actually use derefs on
shader_storage variables.
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
This doesn't currently change anything because array indices are
required to be 32 bits and all derefs are also 32 bits. However, we
will one day have 64-bit derefs for OpenCL.
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
We already had code in link_as_ssa to handle bit sizes; we just need to
use it. While we're at it we clean up link_as_ssa a bit and add an
explicit bit_size parameter in preparation for a day when we have derefs
that aren't 32 bit.
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
This simplifies our deref handling by emitting the actual NIR deref
instructions on-the-fly instead of of building up a deref chain and then
emitting them at the last moment. In order for this to work with the
parts of the compiler that assume they can chase deref chains, we have
to run nir_rematerialize_derefs_in_use_blocks_impl to put the derefs
back in the right places. Otherwise, in cases such as loop continues
where the SPIR-V blocks are not in the same order as the NIR blocks, we
may end up with a deref chain with a parent that does not dominate it's
child and nir_repair_ssa_impl will insert phis in the deref chain.
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
The SPIR-V spec was recently updated to clarify that array indices are
treated as signed integers.
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
The loop through instructions doesn't set the cursor for us so unless we
set it somewhere, we may end up emitting instructions in the wrong
place. The only reason why we haven't been bitten by this in the past
is that it only happens in a few variable pointers cases and the CTS
tests for those don't use much control flow so things were getting
emitted in the correct order by accident.
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
This crops up both in the actual SPIR-V VectorInsert/Extract opcodes as
well as various places where we deal with vector derefs.
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
They can be handled exactly the same as arrays, we just need to handle
the base type correctly in the switches.
Fixes: a45b6fb452 "spirv: Pass SSA values through functions"
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109204
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Note that these limits are exact, not a "precision is at least x",
as texel coords also get snapped to a multiple of this step size
before filtering.
This fixes CTS tests
dEQP-VK.texture.explicit_lod.2d.sizes.31x55_nearest_linear_mipmap_nearest_repeat
dEQP-VK.texture.explicit_lod.2d.sizes.57x35_nearest_linear_mipmap_nearest_repeat
Fixes: f4e499ec79 "radv: add initial non-conformant radv vulkan driver"
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109151
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
These days, we have two sampler lowering passes. The newer one,
gl_nir_lower_samplers_as_deref, is used by radeonsi. It rewrites
variables to drop structures out of sampler deref chains, to make
life simpler. It then sets var->data.binding for non-bindless
sampler and image variables based on the GL uniform storage's
opaque index values.
The older one converts sampler deref chains (nir_tex_src_texture_deref)
to a numerical offset (nir_tex_src_texture_offset). It also stores the
constant-valued portion of that number in tex->texture_index, making
life really simple for drivers that don't support indirects. It too
pokes at GL uniform storage's opaque index values.
Logically, we can do the first pass (simplify derefs, set bindings)
then the second (turn derefs to offsets, set texture_index). This
patch does exactly that, eliminating some redundancy (only one pass
has to poke at GL uniform storage), and gaining proper var->data.binding
values for drivers using the full lowering.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
We recurse to remove structures, and at each step, re-modify the
resulting type for our link in the deref chain. For arrays, the
result of recursion is the new underlying type - so we wrap it with
the array dimensionality again. For structs, we want to simply use
the new underlying type, skipping the struct altogether.
The correct way to do this is to do nothing at all. Previously, we
had reset type to next->type, which is the /old/ field type, not the
new field type we obtained by recursing. This undid our recursive work.
Fixes about 338 tests with nested structs, such as:
dEQP-GLES2.functional.uniform_api.value.initial.get_uniform.nested_structs_arrays.sampler2D_samplerCube_fragment
Note that currently only radeonsi uses this pass, and NIR support is
disabled there by default, so the breakage was likely not seen by most
people. The next commit uses this pass for more drivers, so this fix
prevents regressions from that change.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
unused and gcc complains about strncpy. (from what I can see because
strncpy does not leave a 0 byte on truncate. That said we don't use
it so this does not fix a real bug).
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Karol Herbst
Dylan Baker
Pierre Moreau
Lionel Landwerlin
Tapani Pälli
Dave Airlie
Jason Ekstrand
Bas Nieuwenhuizen
Kenneth Graunke