In merged shaders we put a big if around each shader, so both stages
can have a different number of threads. However, the NGG output code
still needs to run if the first shader is not executed.
This can happen when there are more gs threads than vs/es threads, or
when there are 0 es/vs threads (why? no clue).
Fixes: ee21bd7440 "radv/gfx10: implement NGG support (VS only)"
Reviewed-by: Dave Airlie <airlied@redhat.com>
This needs to be cleaned up a bit, and it probably contains
missing stuff and/or bugs.
This doesn't fix the "half of the triangles" issue.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
This simplifies a bunch of stuff by
(1) Keeping all the things in a single allocation, making things easier
for the cache.
(2) creating a shader_variant creation helper.
This is immediately put to use by creating rtld shader binaries. This
is the main reason for the binaries, as we need to do the linking at
upload time, i.e. post caching. We do not enable rtld yet.
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
The only exception is the GS copy shader which emits them
unconditionally.
Totals from affected shaders:
SGPRS: 71320 -> 71008 (-0.44 %)
VGPRS: 54372 -> 54240 (-0.24 %)
Code Size: 2952628 -> 2941368 (-0.38 %) bytes
Max Waves: 9689 -> 9723 (0.35 %)
This helps Dota2, Doom, GTAV and Hitman 2.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
inaccessiblememonly means that it doesn't modify memory accesible via
normal LLVM pointers. This lets LLVM's dead store elimination, memcpy
forwarding, etc. ignore functions with this attribute. We don't
represent descriptors as pointers, so this property is always true of
buffer and image stores. There are plans to represent descriptors via
pointers, but this just means that now nothing is inaccessiblememonly,
as LLVM will then understand loads/stores via its usual alias analysis.
Radeonsi was mistakenly only setting it if the driver could prove that
there were no reads, and then it was cargo-culted into ac_llvm_build
and ac_llvm_to_nir. Rip it out of everything.
statistics with nir enabled:
Totals from affected shaders:
SGPRS: 152 -> 152 (0.00 %)
VGPRS: 128 -> 132 (3.12 %)
Spilled SGPRs: 0 -> 0 (0.00 %)
Spilled VGPRs: 0 -> 0 (0.00 %)
Private memory VGPRs: 0 -> 0 (0.00 %)
Scratch size: 0 -> 0 (0.00 %) dwords per thread
Code Size: 9324 -> 9244 (-0.86 %) bytes
LDS: 2 -> 2 (0.00 %) blocks
Max Waves: 17 -> 17 (0.00 %)
Wait states: 0 -> 0 (0.00 %)
The only difference was a manhattan31 shader.
Acked-by: Timothy Arceri <tarceri@itsqueeze.com>
Acked-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
It's unsupported, only load/store format with vec3 are supported.
Fixes: 6970a9a6ca ("ac,radv: remove the vec3 restriction with LLVM 9+")"
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Acked-by: Dave Airlie <airlied@redhat.com>
We already use GFX9 and I don't want us to have confusing naming
in the driver. GFXn naming is better from the driver perspective,
because it's the real version of the gfx portion of the hw. Also,
CIK means Bonaire-Kaveri-Kabini, it doesn't mean CI.
It shouldn't confuse our SDMA, UVD, VCE etc. code much. Those have
nothing to do with GFXn and they have their own version numbers.
While ImageFormatProperties returns the number of internal descriptors,
it turns out that applications do not need to actually allocate more
descriptors in the descriptor pool.
So if we make descriptors with more planes larger we have to be
convervative and always allocate space for the larger descriptors
which is a waste given the low usage of this ext.
So let us make use of the fact that 3plane formats all have the
same formats & dimensions for the last two planes. This way we
only need the first half of the descriptor of the 3rd plane and
can share the second half of the second plane.
This allows us to use 16 bytes for the descriptor which nicely
fits into the 16 bytes that are unused right next to the sampler.
Fixes: 5564c38212 "radv: Update descriptor sets for multiple planes."
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Because the new raw/struct intrinsics are buggy with LLVM 8
(they weren't marked as source of divergence), we fallback to the
old instrinsics for atomic buffer operations only. This means we need
to apply the indexing workaround for GFX9. The load/store
operations still use the new LLVM 8 intrinsics.
The fact that we need another workaround is painful but we should
be able to clean up that a bit once LLVM 7 support will be dropped.
This fixes a GPU hang with AC Odyssey and some rendering problems
with Nioh.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=110573
Fixes: 31164cf5f7 ("ac/nir: only use the new raw/struct image atomic intrinsics with LLVM 9+")
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Basically just reserve the memory in the descriptor sets.
On the shader side we construct a buffer descriptor, since
AFAIU VGPR indexing on 32-bit pointers in LLVM is still broken.
This fully supports update after bind and variable descriptor set
sizes. However, the limits are somewhat arbitrary and are mostly
about finding a reasonable division of a 2 GiB max memory size over
the set.
v2: - rebased on top of master (Samuel)
- remove the loading resources rework (Samuel)
- only load UBO descriptors if it's a pointer (Samuel)
- use LLVMBuildPtrToInt to avoid IR failures (Samuel)
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl> (v2)
Seems like dxvk used integer builtins without setting the flat
interpolation decoration.
I believe in the current spec the app is required to set these,
but in the meantime to avoid breaking things in stable releases
(and so close to release for 19.0), only expand the interpolation
to float16 and struct (which cannot be builtins as our spirv parser
lowers the builtin block).
Fixes: f324784104 "radv: Allow interpolation on non-float types."
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
float16 types can have non-flat interpolation so set up the HW
correctly for that.
Fixes: 62024fa775 "radv: enable VK_KHR_16bit_storage extension / 16bit storage features"
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
So that the signature is correct and consistent, the inputs to a export
intrinsic should always be 32-bit floats.
This and the previous commit fixes a large amount crashes from
dEQP-VK.spirv_assembly.instruction.graphics.16bit_storage.input_output_int_*
tests
Fixes: b722b29f10 ('radv: add support for 16bit input/output')
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
16-bit outputs are stored as 16-bit floats in the outputs array, so they
have to be bitcast.
Fixes: b722b29f10 ('radv: add support for 16bit input/output')
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
The elements added into a vector should have the same type as the
first one, otherwise this hits an assertion in LLVM.
Fixes: 4b3549c084 ("radv: reduce the number of loaded channels for vertex input fetches")
reported-by: Philip Rebohle <philip.rebohle@tu-dortmund.de>
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
normalized and scaled formats also return floats.
Fixes: 4b3549c084 ("radv: reduce the number of loaded channels for vertex input fetches")
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
We should check that num_channels is 4, otherwise that breaks
the world. Sorry for the short breakage.
Fixes: 4b3549c084 ("radv: reduce the number of loaded channels for vertex input fetches")
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
This removes some scalar loads from shaders, but it increases
the number of SET_SH_REG packets. This is currently basic but
it could be improved if needed. Inlining dynamic offsets might
also help.
Original idea from Dave Airlie.
29077 shaders in 15096 tests
Totals:
SGPRS: 1321325 -> 1357101 (2.71 %)
VGPRS: 936000 -> 932576 (-0.37 %)
Spilled SGPRs: 24804 -> 24791 (-0.05 %)
Code Size: 49827960 -> 49642232 (-0.37 %) bytes
Max Waves: 242007 -> 242700 (0.29 %)
Totals from affected shaders:
SGPRS: 290989 -> 326765 (12.29 %)
VGPRS: 244680 -> 241256 (-1.40 %)
Spilled SGPRs: 1442 -> 1429 (-0.90 %)
Code Size: 8126688 -> 7940960 (-2.29 %) bytes
Max Waves: 80952 -> 81645 (0.86 %)
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
This is needed in order to inline some push constants when possible.
This also adds a new helper for initializing the pass.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
