index is of type uint32_t.
Fix defect reported by Coverity Scan.
Macro compares unsigned to 0 (NO_EFFECT)
unsigned_compare: This greater-than-or-equal-to-zero comparison of
an unsigned value is always true. index >= 0U.
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7153>
Now that we added support for texel_buffers, on all the cases that we
were checking for a image_view we end checking for a image_view or
buffer_view, so we stopped to use it. Remove it as it become
superfluous.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>
It seems that we only want to set the texture state's depth to the
number of 2D layers divided by 6 when sampling, not wen doing
load/store.
This means that we need to generate two different states and choose
the one to use depending on the descriptor.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>
We are treating them as a special case of texture, so the commit is
mostly about integrating them with the existing
SAMPLER/SAMPLER_IMAGE/COMBINED_IMAGE_SAMPLER infrastructure.
This commit doesn't use in any special way the render pass
information, including the dependencies, so it is possible that we
would need to do something else. But this commit gets several CTS
tests, and two Sascha Willem Vulkan demos, so let's start with this
commit and handle any other use case for following commits.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>
Heavily based on the already existing for the v3d OpenGL driver, but
without references, and with some extra OOM checks (Vulkan CTS has
several OOM tests).
With this commit v3dv_bo_alloc and v3dv_bo_free became frontends to
the bo_cache. The former tries to get a BO from the cache if possible,
and the latter stores the BO on the cache if possible. The former also
adds a new parameter to point if the BO to allocate is private.
As v3d we are only caching private BOs, those created by the driver
for internal use (like CLs, tile_alloc, etc). They are the ones with
the highest change of being reused (for example, CL BOs are always
4KB, so they can always be reused). User-created BOs can have any
size, including some very large ones for buffers and images, which
makes them far less likely to be reused and would add a lot of memory
pressure if we decided to cache them.
In any case, in practice, we found that we could get a performance
improvement by caching also user-created BOs, but that would need more
care and an analysis to decide which ones makes sense. Would also
require to change how the cached BOs are stored by size. Right now
there are an array of list_head, that doesn't work well with big
BOs. If done, that would be handled on a separate commit.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>
This allows us to remove some individual bos for the image and
sampler, used to store the SAMPLER_STATE and TEXTURE_SHADER_STATE. Now
they are prepacked on static memory as part of the vulkan object
struct.
This commit introduces small descriptor structs, used to define what
the bo subregion would contain. It is used mostly to compute offsets
to that specific data, and define the size needed. Having said so, it
would be possible to replace them with some kind of flag (like anv) or
just compute the offset based on the context.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>
So far we were saving all the descriptor info on the host memory. With
this commit we do the equivalent that other mesa vulkan drivers (Anvil
and Turnip) and create a bo on the descriptor pool that would be
suballocated for each descriptor.
This would allow to clean up individual bos from some vulkan objects,
reducing device memory fragmentation, and allowing to avoid to alloc
bos for that info. After all, pre-allocating needed memory is one of
the purposes of the descriptor pool.
This commit introduces all the infrastructure, but doesn't use it for
any descriptor yet, as if no descriptor needed data uploaded to a bo.
The idea to decide which info goes to the descriptor pool bo is info
that we would need to upload to a bo in any case, as it is referenced
as an address by any packet.
We could be more aggressive with that general rule, but that would be
enough for now. If in the future we support
VK_EXT_descriptor_indexing, we probably would need to store more info,
as under that extension, descriptors can be updated after being bound.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>
In order to properly check (and possibly compile) shader variants we
need a pipeline and a compatible descriptor set. So far we were trying
to do that check as early as possible, so we were trying to do it at
CmdBindPipeline or CmdBindDescriptorSets, and a combination of dirty
flags. This showed to not cover all the corners cases, and made the
code complex, as needed to handle cases where the descriptors were not
yet available, and return early. The latter also meant that we were
running several checks that failed in the middle.
This commit moves the variant check to CmdDraw, when we should have a
pipeline and compatible descriptor sets, and simplifies and makes more
strict the existing code.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>
They are bound at the set layout, and cannot be changed. From
VkDescriptorSetLayoutBinding spec:
"pImmutableSamplers affects initialization of samplers. If
descriptorType specifies a VK_DESCRIPTOR_TYPE_SAMPLER or
VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER type descriptor, then
pImmutableSamplers can be used to initialize a set of immutable
samplers. Immutable samplers are permanently bound into the set
layout and must not be changed; updating a
VK_DESCRIPTOR_TYPE_SAMPLER descriptor with immutable samplers is
not allowed and updates to a
VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER descriptor with immutable
samplers does not modify the samplers (the image views are updated,
but the sampler updates are ignored)"
We stored them as part of the set layout. It also means that when we
need the sampler (like for texture operations) we can't just ask for a
descriptor, as it would not have the sampler. A new method is created.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>
Right now shader variant update on the cmd_buffer is based on populate
a new key using the descriptor bounds, assuming that we would get one
final descriptor for any usage on the shader. But if the descriptors
are being bound with more that one call to CmdBindDescriptorSet, that
would not be true, as the first calls would not bind all the
descriptors. Right now this was raising an assert.
Now we allow that as possible, and for the case of checking variants,
we just stop it, and we don't clean up the SHADER_VARIANT flag.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>
Specially after CmdBindDescriptorSets, it is likely that we would need
a new shader variant, like for example if sampler descriptor sets are
bound.
At that moment a new v3d key is populated, using as base the one used
at pipeline creation, so only cmd_buffer depending values are changed.
Then a new variant is requested. Note that internally it is handled
with a cache, so no new compilation will be done if not needed.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>
This include SAMPLER, COMBINED_IMAGE_SAMPLER and SAMPLED_IMAGE
descriptors.
In order to support them we do the pre-packing of TEXTURE_SHADER_STATE
and SAMPLER_STATE when Images and Samplers (respectively) are
created. Those packets doesn't need to be tweaked later, so we upload
them to an bo.
A possible improvement of this would be that the descriptor pool
manages a bo for all descriptors, that suballocate for each descriptor
allocated. This is what other drivers do (and as far as I understand,
one of the reasons of having a descriptor pool).
Immutable samplers are not supported, will be handled on a following
patch.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>
Push constant tests were still working without taking this into
account because we can't really fine graine how much we allocate for
them.
For now we only use them to know if we should allocate/fill the ubo
for push constants or not.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>
Focused on getting the basic UBO and SSBO cases implemented. So no
dynamic offset, push contanst, samplers, and so on.
This include a initial implementation for CreatedescriptorPool,
CreateDescriptorSetLayout, AllocateDescriptorSets,
UpdateDescriptorSets, CreatePipelineLayout, and CmdBindDescriptorSets.
Also introduces lowering vulkan intrinsics. For now just
vulkan_resource_index.
We also introduce a descriptor_map, in this case for the ubos and
ssbos, used to assign a index for each set/binding combination, that
would be used when filling back the details of the ubo or ssbo on
other places (like QUNIFORM_UBO_ADDR or QUNIFORM_SSBO_OFFSET).
Note that at this point we don't need a bo for the descriptor pool, so
descriptor sets are not getting a piece of it. That would likely
change as we start to support more descriptor set types.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>
