| Commit message (Collapse) | Author | Age | Files | Lines |
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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 <[email protected]>
Reviewed-by: Caio Marcelo de Oliveira Filho <[email protected]>
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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 <[email protected]>
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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 <[email protected]>
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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 <[email protected]>
Reviewed-by: Caio Marcelo de Oliveira Filho <[email protected]>
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Reviewed-by: Alejandro Piñeiro <[email protected]>
Reviewed-by: Caio Marcelo de Oliveira Filho <[email protected]>
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It was added in bce6f9987522 even though it's completely redundant with
glsl_array_type().
Reviewed-by: Alejandro Piñeiro <[email protected]>
Reviewed-by: Caio Marcelo de Oliveira Filho <[email protected]>
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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 <[email protected]>
Reviewed-by: Caio Marcelo de Oliveira Filho <[email protected]>
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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 <[email protected]>
Reviewed-by: Caio Marcelo de Oliveira Filho <[email protected]>
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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 <[email protected]>
Reviewed-by: Caio Marcelo de Oliveira Filho <[email protected]>
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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: [email protected]
Reviewed-by: Alejandro Piñeiro <[email protected]>
Reviewed-by: Caio Marcelo de Oliveira Filho <[email protected]>
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Cc: [email protected]
Reviewed-by: Alejandro Piñeiro <[email protected]>
Reviewed-by: Caio Marcelo de Oliveira Filho <[email protected]
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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 <[email protected]>
Reviewed-by: Caio Marcelo de Oliveira Filho <[email protected]>
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The SPIR-V spec was recently updated to clarify that array indices are
treated as signed integers.
Cc: [email protected]
Reviewed-by: Alejandro Piñeiro <[email protected]>
Reviewed-by: Caio Marcelo de Oliveira Filho <[email protected]>
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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: [email protected]
Reviewed-by: Alejandro Piñeiro <[email protected]>
Reviewed-by: Caio Marcelo de Oliveira Filho <[email protected]>
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This crops up both in the actual SPIR-V VectorInsert/Extract opcodes as
well as various places where we deal with vector derefs.
Cc: [email protected]
Reviewed-by: Alejandro Piñeiro <[email protected]>
Reviewed-by: Caio Marcelo de Oliveira Filho <[email protected]>
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Reviewed-by: Alejandro Piñeiro <[email protected]>
Reviewed-by: Caio Marcelo de Oliveira Filho <[email protected]>
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They can be handled exactly the same as arrays, we just need to handle
the base type correctly in the switches.
Fixes: a45b6fb4524 "spirv: Pass SSA values through functions"
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109204
Reviewed-by: Jason Ekstrand <[email protected]>
Reviewed-by: Samuel Pitoiset <[email protected]>
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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: f4e499ec791 "radv: add initial non-conformant radv vulkan driver"
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109151
Reviewed-by: Samuel Pitoiset <[email protected]>
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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 <[email protected]>
Acked-by: Jason Ekstrand <[email protected]>
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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 <[email protected]>
Acked-by: Jason Ekstrand <[email protected]>
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[1/59] Compiling C object 'src/amd/common/src@amd@common@@amd_common@sta/ac_nir_to_llvm.c.o'.
../mesa/src/amd/common/ac_nir_to_llvm.c: In function ‘get_inst_tessfactor_writemask’:
../mesa/src/amd/common/ac_nir_to_llvm.c:4089:32: warning: suggest parentheses around ‘+’ inside ‘<<’ [-Wparentheses]
writemask = ((1 << num_comps + 1) - 1) << first_component;
~~~~~~~~~~^~~
../mesa/src/amd/common/ac_nir_to_llvm.c:4091:33: warning: suggest parentheses around ‘+’ inside ‘<<’ [-Wparentheses]
writemask = (((1 << num_comps + 1) - 1) << first_component) << 4;
Reviewed-by: Samuel Pitoiset <[email protected]>
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Reviewed-by: Samuel Pitoiset <[email protected]>
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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 <[email protected]>
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trivial
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v2: Add the "fix" tag (Erik).
Fixes: 037f68d81e1 ("glsl: apply align layout qualifier rules to block offsets")
Cc: Timothy Arceri <[email protected]>
Signed-off-by: Andres Gomez <[email protected]>
Reviewed-by: Erik Faye-Lund <[email protected]>
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Acked-by: Samuel Pitoiset <[email protected]>
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v2: replace incorrect "<td/>" with "<td>" (Eric).
Cc: Dylan Baker <[email protected]>
Cc: Juan A. Suarez <[email protected]>
Cc: Emil Velikov <[email protected]>
Signed-off-by: Andres Gomez <[email protected]>
Acked-by: Emil Velikov <[email protected]>
Acked-by: Juan A. Suarez <[email protected]>
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We do the ImageFormatProperties check already, and rejecting an usage
flag when both ImageFormatProperties and the WSI (which is Android)
support it is not allowed.
Intel does support storage for some of the support WSI formats, such
as R8G8B8A8_UNORM, and looking at the ISL_SURF_USAGE_DISABLE_AUX_BIT,
the imported images do not have any form of compression that would
prevent this fix.
v2: Also consider STORAGE bit for Gralloc usage bits.
(From Kevin Strasser <[email protected]>)
Fixes: 053d4c328fa "anv: Implement VK_ANDROID_native_buffer (v9)"
Reviewed-by: Tapani Pälli <[email protected]>
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We started using it in the btoi paths for r32g32b32, and the LLVM IR
checker will complain about it because we end up with intrinsics with
the wrong type extension in the name.
Fixes: 593996bc02 ("radv: implement buffer to image operations for R32G32B32")
Reviewed-by: Samuel Pitoiset <[email protected]>
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Some of the status variables in the compiler are only used in asserts
and thus may be unused in release builds. Annotate them accordingly
to avoid 'unused but set' warnings from the compiler.
Signed-off-by: Lucas Stach <[email protected]>
Reviewed-by: Christian Gmeiner <[email protected]>
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Take into account the render target format when checking if the color
mask affects all channels of the RT. This allows to enable full
overwrite in a few cases where a non-alpha format is used.
Signed-off-by: Lucas Stach <[email protected]>
Reviewed-by: Christian Gmeiner <[email protected]>
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Reviewed-by: Bas Nieuwenhuizen <[email protected]>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109231
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The functional change here is moving the nir_lower_io_to_scalar_early()
calls inside st_nir_link_shaders() and moving the st_nir_opts() call
after the call to nir_lower_io_arrays_to_elements().
This fixes a bug with the following piglit test due to the current code
not cleaning up dead code after we lower arrays. This was causing an
assert in the new duplicate varyings link time opt introduced in
70be9afccb23.
tests/spec/glsl-1.10/execution/vsfs-unused-array-member.shader_test
Moving the nir_lower_io_to_scalar_early() calls also allows us to tidy
up the code a little and merge some loops.
Reviewed-by: Eric Anholt <[email protected]>
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Even without any clever optimization on the unpack operations, this gives
us a useful value for the channels read field, which we can use to avoid
ldtmu instructions to the no-op register.
instructions in affected programs: 890712 -> 881974 (-0.98%)
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I've been doing this in the nir-to-vir and nir-to-qir backends of v3d and
vc4, but nir could potentially do some useful stuff for us (like avoiding
unpack/repacks) if we give it the information.
v2: Skip lowering for txs/query_levels
v3: Fix a crash on old-style shadow
v4: Rename to tex_packing, use nir_format_unpack_sint/uint helpers, pack
the enum.
Reviewed-by: Jason Ekstrand <[email protected]>
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For V3D, I want to unpack 4-16-bit packed integers for 8 and 16-bit
integer samplers.
Reviewed-by: Jason Ekstrand <[email protected]>
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In 92eb5bbc68d7324 we attempted to avoid copying clear colors whenever
we weren't doing a resolve. However, this broke MSAA resolves because
we need the clear color in the source. This patch makes blorp much more
conservative such that it only avoids the clear color copy if either
aux_usage == NONE or it's explicitly doing a fast-clear.
Fixes: 92eb5bbc68d7 "intel/blorp: Only copy clear color when doing..."
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107728
Reviewed-by: Rafael Antognolli <[email protected]>
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We can pull a whole vector in a single indirect load. This saves a bunch
of round-trips to the TMU, instructions for setting up multiple loads,
references to the UBO base in the uniforms, and apparently manages to
reduce register pressure as well.
instructions in affected programs: 3086665 -> 2454967 (-20.47%)
uniforms in affected programs: 919581 -> 721039 (-21.59%)
threads in affected programs: 1710 -> 3420 (100.00%)
spills in affected programs: 596 -> 522 (-12.42%)
fills in affected programs: 680 -> 562 (-17.35%)
Improves 3dmmes performance by 2.29312% +/- 0.139825% (n=5)
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In the process of adding support for SSBOs and CS shared vars, I ended up
needing a helper function for doing TMU general ops. This helper can be
that starting point, and saves us a bunch of round-trips to the TMU by
loading a vector at a time.
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Moving things to NIR left this mess around. All we lower now is uniforms.
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I noticed that a VS I was debugging was missing all of its output stores
-- outputs_written was for POS, VAR0, VAR3, while the shader's variables
were POS, VAR9, and VAR12. I'm not sure what outputs_written is supposed
to be doing here, but we can just walk the declared variables and avoid
both this bug and the emission of extra stvpms for less-than-vec4
varyings.
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I misplaced it in the rebase conflicts.
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When copy_prop_vars also took care of dead write handling, intrin was
used as part of store_to_entry. Now it isn't, so this assignment
isn't used really used. Add a comment clarifying what happens to
intrin.
Fixes: 4dfa7adc100 "nir: Remove handling of dead writes from copy_prop_vars"
Reviewed-by: Jordan Justen <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
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Even with the previous commit, hangs are still happening. The problem
there is that the VF cache invalidate do happen immediately without
waiting for previous rendering to complete. What happens is that we
invalidate the cache the moment the PIPE_CONTROL is parsed but we
still have old rendering in the pipe which continues to pull data into
the cache with the old high address bits. The later rendering with the
new high address bits then doesn't have the clean cache that it
expects/needs.
v2: Update commit message/explanation with Jason's
Signed-off-by: Lionel Landwerlin <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
Fixes: a363bb2cd0e2a1 ("i965: Allocate VMA in userspace for full-PPGTT systems.")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109072
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These buffers are using VB slots and should be included in the
workaround decision.
Signed-off-by: Lionel Landwerlin <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
Fixes: a363bb2cd0e2a1 ("i965: Allocate VMA in userspace for full-PPGTT systems.")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109072
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Probably no difference but it's nice to have i965 & blorp emit things
in the same order.
Signed-off-by: Lionel Landwerlin <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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Documentation of the 3DSTATE_VERTEX_BUFFERS packet says this is only
needed before ICL.
Signed-off-by: Lionel Landwerlin <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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Commit 27f1298b9d9 ("glsl/linker: validate attribute aliasing before optimizations")
forgot to complete the documentation.
Cc: Tapani Pälli <[email protected]>
Signed-off-by: Andres Gomez <[email protected]>
Reviewed-by: Tapani Pälli <[email protected]>
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