This replaces the depth-first search scheduler with a more traditional
ready-list scheduler. It primarily tries to reduce register pressure
(number of live values), with the exception of trying to schedule kills
as early as possible. (Earlier iterations of this scheduler had a
tendency to push kills later, and in particular moving texture fetches
which may not be necessary ahead of kills.)
Signed-off-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4440>
If the group pass must insert a mov to resolve conflicts, avoid the mov
appearing *after* the meta:collect whose src it is.
The current pre-RA scheduler doesn't really care about the initial
instruction order, but the new one will in some cases.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4440>
for verbose mode, print also the instruction "cycle" (which takes into
account (rptN) and (nopN)) in addition to instruction offset.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4440>
SEL_B32 (and presumably B16) checks for 0 or nonzero in the condition
(tested by just stuffing a uniform's value into it), so there's no need to
do ir3_b2n() on it, or any preceding ir3_n2b().
instructions in affected programs: 664444 -> 659927 (-0.68%)
nops in affected programs: 267898 -> 266312 (-0.59%)
non-nops in affected programs: 420260 -> 417329 (-0.70%)
dwords in affected programs: 144032 -> 137568 (-4.49%)
last-baryf in affected programs: 10801 -> 10321 (-4.44%)
full in affected programs: 2003 -> 2002 (-0.05%)
sstall in affected programs: 76670 -> 77405 (0.96%)
(ss) in affected programs: 4515 -> 4525 (0.22%)
(sy) in affected programs: 612 -> 604 (-1.31%)
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4516>
The v->binning variant is never added to shader->variants, so just free
each one as we free the nonbinning variant.
Noticed from drm-shim mode running out of open fds, since each bo ends up
with an fd.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4502>
Under the bindless model, there are 5 "base" registers programmed with a
64-bit address, and sam/ldib/ldc and so on each specify a base register
and an offset, in units of 16 dwords. The base registers correspond to
descriptor sets in Vulkan. We allocate a buffer at descriptor set
creation time, hopefully outside the main rendering loop, and then
switching descriptor sets is just a matter of programming the base
registers differently. Note, however, that some kinds of descriptors
need to be patched at command recording time, in particular dynamic
UBO's and SSBO's, which need to be patched at CmdBindDescriptorSets
time, and input attachments which need to be patched at draw time based
on the the pipeline that's bound. We reserve the fifth base register
(which seems to be unused by the blob driver) for these, creating a
descriptor set on-the-fly and combining all the dynamic descriptors from
all the different descriptor sets. This way, we never have to copy the
rest of the descriptor set at draw time like the blob seems to do. I
mostly chose to do this because the infrastructure was already there in
the form of dynamic_descriptors, and other drivers (at least radv) don't
cheat either when implementing this.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4358>
In Vulkan, descriptors for samplers, SSBO's, etc. are collected into
descriptor sets, and shaders can use multiple descriptor sets. At
command-recording time, users can swap out only some of the descriptor
sets, and the driver is supposed to do the minimum amount necessary to
update any internal binding tables, knowing that only some of the
descriptors have changed.
With the old binding model, focused on GL, where there are separate
tables for each type of resource, we can do somewhat better than now by
preserving descriptors from lower descriptor sets when switching higher
descriptor sets. However we still have to copy around descriptors before
each draw.
At least for a6xx, qualcomm went further, essentially copying the Vulkan
binding model as an alternate way to load resources. There's an array of
registers (actually an array for compute and one for everything else),
where each register holds a pointer to a descriptor set that can contain
various different descriptor types. The descriptors are padded out to 16
dwords, so that every instruction can use an index instead of a dword
offset. It's called "bindless", I think, because it can also be used to
implement the old GL bindless extensions (presumably it allows more
samplers and textures than the old model).
This commit adds the register and cmdstream parts. Next up will be the
instruction encoding.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4358>
Carve out some space at the beginning for push constants, and push them
directly, rather than remapping them to a UBO and then relying on the
UBO pushing code. Remapping to a UBO is easy now, where there's a single
table of UBO's, but with the bindless model it'll be a lot harder. I
haven't removed all the code to move the remaining UBO's over by 1,
though, because it's going to all get rewritten with bindless anyways.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4358>
The shader path is used to implement the following cases:
* stencil aspect mask on D24S8 (for image_to_buffer,buffer_to_image)
* clear/copy msaa destination (2D engine can't have msaa dest)
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3783>
* Take tile_mode as input directly
* tu6_format_gmem to tu6_base_format, use may not be limited to GMEM
* Add new helpers that will return the correct tile_mode as for image level
as part of the format.
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3783>
This is needed to be able to know the number of samples during
CmdClearAttachments which can be used while the framebuffer is unknown.
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3783>
* Correct bypass value for a618
* Bypass value for blitter
* Don't set RB_CCU_CNTL again unnecessarily in tu6_emit_binning_pass
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3783>
Found from piglit fbo-generatemipmaps failures, then tracked down with the
texturator test. The piece that really revealed things was finding that
1024x1 linear RGBA8 on the older blob drivers would have a pitch of 5120
instead of 4096, and the following levels minified that pitch.
Fixes ~124 piglit tests (~8.5% of piglit failures) on cheza.
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3987>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3987>
Trying to work out texture layout by remembering what things looked like
in texturator is hard. Instead, let's use texture layouts from tracing
the blob as a source of truth to make sure that we pick the same layouts
they do (and don't break known-good ones). More testcases will be added
as I fix layout bugs.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3987>
