For resizable BAR, we don't want to endlessly promote UPLOAD heaps to
BAR since VRAM is precious. The aim is to set a fixed budget where we
can keep allocating until full, at which point we fall back to plain HOST.
Signed-off-by: Hans-Kristian Arntzen <post@arntzen-software.no>
With BAR budgets, what will happen is that
- Small allocation is requested
- A new chunk is requested
- try_suballocate_memory will end up calling allocate_memory, which
allocates a fallback memory type
- Subsequent small allocators will always end up allocating a new
fallback memory block, never reusing existing blocks.
- System memory is rapidly exhausted once apps start hitting against
budget.
The fix is to add flags which explicitly do not attempt to fallback
allocate. This makes it possible to handle fallbacks at the appropriate
level in try_suballocate_memory instead.
Signed-off-by: Hans-Kristian Arntzen <post@arntzen-software.no>
We will need to consider some form of budgeting, so make sure that all
allocation and freeing is done in a central place.
Signed-off-by: Hans-Kristian Arntzen <post@arntzen-software.no>
Need to consider that based on host visibility requirements, we need to
select either LINEAR or OPTIMAL image types, and those tiling modes can
have different memory requirements.
Signed-off-by: Hans-Kristian Arntzen <post@arntzen-software.no>
Need to initialize the set mask so that copies happen properly
on default-initialized descriptors. Also, move the current_null_type to
metadata so that it's properly copied on descriptor copy.
Signed-off-by: Hans-Kristian Arntzen <post@arntzen-software.no>
There are titles clearing the same descriptors constantly.
This leads to unnecessary updates that can become costly.
This commit introduces a new flag to track when D3D12 descriptors are
not null, and skips clearing them if they are already null.
Descriptors are assumed to be null by default.
This fixes a performance regression introduced by
9983a1720f
Signed-off-by: Rodrigo Locatti <rlocatti@nvidia.com>
Emitting render pass clears while we're in the process of starting
a render pass overrides dsv layout tracking info.
Signed-off-by: Philip Rebohle <philip.rebohle@tu-dortmund.de>
Get information directly from vkd3d_format and allow for subsampled
formats in the future.
Signed-off-by: Hans-Kristian Arntzen <post@arntzen-software.no>
Goal here is to avoid unnecessary image layout transitions when render
passes toggle depth-stencil PSO states. Since we cannot know which
states a resource is in, we have to be conservative, and assume that
shader reads *could* happen.
The best effort we can do is to detect when writes happen to a DSV
resource. In this scenario, we can deduce that the aspect cannot be
read, since DEPTH_WRITE | RESOURCE state is not allowed.
To make the tracking somewhat sane, we only promote to OPTIMAL if an
entire image's worth of subresources for a given aspect is transitioned.
The common case for depth-stencil images is 1 mip / 1 layer anyways.
Some other changes are required here:
- Instead of common_layout for the depth image, we need to consult the
command list, which might promote the layout to optimal.
- We make use of render pass compatibility rules which state that we can
change attachment reference layouts as well as initial/finalLayout.
To make this change, a pipeline will fill in a
vkd3d_render_pass_compat struct.
- A command list has a dsv_plane_optimal_mask which keeps track
of the plane aspects we have promoted to OPTIMAL, and we know cannot
be read by shaders.
The desired optimal mask is (existing optimal | PSO write).
The initial existing optimal is inherited from the command list's
tracker.
- RTV/DSV/views no longer keep track of VkImageLayout. This is
unnecessary since we always deduce image layout based on context.
Overall, this shows a massive gain in HZD benchmark (RADV, 1440p ultimate, ~16% FPS on RX 6800).
Signed-off-by: Hans-Kristian Arntzen <post@arntzen-software.no>
Idea is to keep track of scenarios where we know a resource's aspect is
known to be in a OPTIMAL state. Based on this, we can override the image
layout from the common_layout in order to avoid unnecessary full
barriers.
Signed-off-by: Hans-Kristian Arntzen <post@arntzen-software.no>
Not correct, will need spec additions to handle it properly.
Fixes ground rendering in DIRT 5.
Signed-off-by: Hans-Kristian Arntzen <post@arntzen-software.no>
- Honor resource barriers for resource states which cannot automatically
decay or promote. This includes COLOR_ATTACHMENT, UNORDERED_ACCESS and
VRS image. If SIMULTANEOUS_ACCESS is used, we can still promote, and
we handle that by setting common layout to GENERAL for these resources.
- Avoid redundant barriers in render passes since normal resource
barriers will always make sure we are already in
COLOR_ATTACHMENT_OPTIMAL.
- Do not force GENERAL layout if resource has UNORDERED_ACCESS flag set.
As this is not a promotable state, we have to explicitly transition
into it. I tested this on validation layers, where even COMMON state
refuses to promote to UAV state. The exception here of course is
SIMULTANOUS_ACCESS, but we handle that properly now.
- Verify that UAV or SIMULTANEOUS access is not used together with DSV
state. This is explicitly banned in the API docs.
- Actually emit image barriers. Batch the image transitions as that's
what D3D12 docs encourage app developers to do, and it also expects
that drivers can optimize this. Ensure that we respect the in-order
resource barrier rules by splitting batches if there are overlaps in
the transitions.
- Ensure that correct image layout is used when clearing a suspended
render pass attachment.
Signed-off-by: Hans-Kristian Arntzen <post@arntzen-software.no>
Avoid using the separate layouts if we're only using formats with one
aspects. This makes it more likely to match layouts with common layout,
and we can avoid awkward transition barriers.
Signed-off-by: Hans-Kristian Arntzen <post@arntzen-software.no>
Some games end up writing the wrong descriptor type when using null
descriptors, and to be robust against that, we have to clear out
all descriptors when creating null descriptors.
If we copy a null descriptor, we will also have to copy from all sets.
Signed-off-by: Hans-Kristian Arntzen <post@arntzen-software.no>
Joshua Ashton
Hans-Kristian Arntzen
Rodrigo Locatti
Philip Rebohle
rochaudhari
Georg Lehmann
David McCloskey