Allows bindgroups that use the same samplers to share
a descriptor heap allocation. This is particularly important
for sampler heaps which incur expensive pipeline flushes
due to the smaller size requiring more frequent switches.
The device dolls out entries to a sampler heap allocation cache.
When the BindGroup is created, it does a lookup and refs the
allocation. This ensures the cache does not grow unbounded
or needlessly store unused entires.
This change is a follow-up of de-coupling heaps.
BUG=dawn:155
Change-Id: I3ab6f1bdb13a40905cb990cd7a2139e73da30303
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/20783
Commit-Queue: Bryan Bernhart <bryan.bernhart@intel.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Allows bindgroups to be populated by heap type. Previously, failing to
populate one type of GPU descriptor heap required both GPU heaps
to be switched out. This resulted in extra copies and heap allocations
should only one heap type overflow.
This change also simplifies GPU descriptor heap management:
- Allocator no longer needs to operate on both heaps.
- Sub-allocation tracking can be moved into handles.
A follow-up change will remove duplicated sampler heap allocations.
BUG=dawn:155
Change-Id: I1960cf3a8bc3d86d3e8b2775da3d0c92125bcf82
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/19887
Commit-Queue: Bryan Bernhart <bryan.bernhart@intel.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
The test failed to switch out because the same
bindgroups were being de-duped. This change encodes
as many bindgroups required to switch.
BUG=dawn:155
Change-Id: I238cd0cebf2f8372046fe0cf83a18570aca41761
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/20241
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Bryan Bernhart <bryan.bernhart@intel.com>
Move the CPU descriptor allocators to the device and bucket them to
ensure only kMaxBindingsPerGroup exist rather than create them per BGL.
Also, renames NonShaderVisible => Staging.
BUG=dawn:155
Change-Id: If6dae368e7e2a2b349343bdf898041a049159038
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/19001
Commit-Queue: Bryan Bernhart <bryan.bernhart@intel.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Skia uses more warnings than Dawn, enable in Dawn directly so that
rolls of Dawn into Skia don't introduce warnings. These warnings
seem useful anyway.
Bug: chromium:1064305
Change-Id: I13dc776af84151131584a95caeee2cd21ae80fea
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/18964
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
This reverts commit c7f454c24191131eb29b8f33f0e9d5b1702fd289
and relands commit 2479860e4bb0ef5a12d269557a088bace53f0f30.
> D3D12: Stage BindGroups on CPU descriptor heaps.
>
> Instead of directly populating GPU heaps, pre-encoded
> BindGroups are staged on CPU heaps then copied over
> to the GPU. Non-shader visible allocators are stored
> on the BGL, which hands out fixed-size chunks to
> simplify memory managment. To enable memory re-use,
> CPU allocations are tied to the lifetime of BindGroup
> objects.
Reason for revert: We can reland this CL now that the CTS suppression merged.
Note: Adds validation to ensure binding size > 0.
Bug: dawn:155
Bug: dawn:375
Change-Id: I75b9773bbb7c70bcea803a7ad8b6480d21ea90f7
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/18904
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Kai Ninomiya <kainino@chromium.org>
This reverts commit 2479860e4bb0ef5a12d269557a088bace53f0f30.
Reason for revert: Causes WebGPU CTS failures
Original change's description:
> D3D12: Stage BindGroups on CPU descriptor heaps.
>
> Instead of directly populating GPU heaps, pre-encoded
> BindGroups are staged on CPU heaps then copied over
> to the GPU. Non-shader visible allocators are stored
> on the BGL, which hands out fixed-size chunks to
> simplify memory managment. To enable memory re-use,
> CPU allocations are tied to the lifetime of BindGroup
> objects.
>
> BUG=dawn:155
>
> Change-Id: I402e6686c96f7450a077c627c8499600979e426c
> Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/18100
> Commit-Queue: Bryan Bernhart <bryan.bernhart@intel.com>
> Reviewed-by: Corentin Wallez <cwallez@chromium.org>
TBR=cwallez@chromium.org,enga@chromium.org,rafael.cintron@microsoft.com,bryan.bernhart@intel.com
# Not skipping CQ checks because original CL landed > 1 day ago.
Bug: dawn:155
Change-Id: I3dfae3e15e2bc21de692513725c9cf3ca38110b5
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/18860
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Instead of directly populating GPU heaps, pre-encoded
BindGroups are staged on CPU heaps then copied over
to the GPU. Non-shader visible allocators are stored
on the BGL, which hands out fixed-size chunks to
simplify memory managment. To enable memory re-use,
CPU allocations are tied to the lifetime of BindGroup
objects.
BUG=dawn:155
Change-Id: I402e6686c96f7450a077c627c8499600979e426c
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/18100
Commit-Queue: Bryan Bernhart <bryan.bernhart@intel.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
And updates all places in tests and examples where they could have been
used.
Bug: dawn:22
Change-Id: Ic36e3f1810037b5addeb9e971b1da28fdd1da183
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/18380
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Adds a toggle to force the use of small shader-visible heaps and
whitebox tests to verify bindgroup encoding correctness.
BUG=dawn:155
Change-Id: I4118b850d9f2cb445ae805aa68ebf4fab671261b
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/16960
Commit-Queue: Bryan Bernhart <bryan.bernhart@intel.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Rather than destory GPU descriptor heaps upon being switched out,
heaps are stored in a list where they can be re-used once the GPU
is no longer using them.
BUG=dawn:155
Change-Id: I2074573e354f114c45afe9895e8515980d325852
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/16282
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Bryan Bernhart <bryan.bernhart@intel.com>
Instead of counting descriptors to be allocated for the entire command
buffer in a pre-pass, the bindgroup state tracker is used to allocate
only dirty bindgroups upon recording draw/dispatch. If the heap has no
more room and must be changed, bindgroups will be re-created according
to the BGL.
A future change will address the CPU descriptors and removal of the
pre-pass.
BUG=dawn:256,dawn:307
Change-Id: I6603de17cfda713bd4512c46e1c93618ca01bb7b
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/13400
Commit-Queue: Bryan Bernhart <bryan.bernhart@intel.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
