GuC offers a mechanism for KMD/UMD to provide workload hints and one of
that strategy is low latency hint. We can utilize this hint when the
workload is more latency sensitive like compute usecases.
Signed-off-by: Sushma Venkatesh Reddy <sushma.venkatesh.reddy@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28282>
Stop using the option in the generic pass
nir_lower_compute_system_values and use the same code as brw uses for
compute instead.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29828>
Reorganize the code to make clearer all the lowering cases:
(a) Single invocation workgroup. Index and IDs are all zero.
(b) Local ID provided by hardware.
(c) Local Index provided by the hardware. Depending on the case this
might not be the final local index, e.g. heuristics for tile.
(d) Neither provided by the hardware.
Case (c) is new and supported by Mesh/Task shaders. At the moment the
nir_lower_compute_system_values handle lowering of LocalID for
Task/Mesh, but a later patch will flip that on ANV.
This will make the Task/Mesh use the same lowering as Compute shaders.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29828>
Looks like some of the tests uses the bias which does not fit into half
float parameter, so it's better to use float param for sample_b.
If we have cube arrays, we anyway combine BIAS and array index properly
so we don't have to worry about the first parameter.
This fixes: GTF-GL46.gtf21.GL3Tests.texture_lod_bias.texture_lod_bias_clamp_m_g_M
Signed-off-by: Sagar Ghuge <sagar.ghuge@intel.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29533>
This has no impact on the generated shaders, but does have a small
(positive) impact on the amount of time spent in shader compilation.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29126>
Following https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28957,
some Xe2 code paths started triggering asserts.
In the cases fixed by this patch, it was because of the assert added
to brw_type_larger_of() in cf8ed9925f ("intel/brw: Make a helper for
finding the largest of two types"), and then brw_type_larger_of() is
used in 674e89953f. (For example, the assert was triggering when the
SHL types differed between D and UD.)
Fixes: 674e89953f ("intel/brw: Use new builder helpers that allocate a VGRF destination")
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29925>
Function anv_physical_device_try_create() creates the devinfo variable
and then at some point it copies its contents to device->info:
device->info = devinfo;
Much much later we're calling:
intel_common_update_device_info(fd, &devinfo);
... which is updating devinfo but not device->info. As a consequence,
we're only creating one queue, as engine_class_supported_count[klass]
is zero for everybody.
Fixes: 5b8b4f7878 ("intel/dev: Add engine_class_supported_count to intel_device_info")
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29927>
When the destination of both instructions is NULL and the conditional
modifier matches, operands_match (by way of instructions_match) will
only test the first two operands. This can result in bad CSE
happening.
This is a very, very narrow edge case.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29848>
This one is a bit more complex in that we need to handle 3-source
commutative opcodes. But it's also quite useful:
fossil-db results on Alchemist (A770):
Instrs: 151659750 -> 150164959 (-0.99%); split: -0.99%, +0.01%
Cycles: 12822686329 -> 12574996669 (-1.93%); split: -2.05%, +0.12%
Subgroup size: 7589608 -> 7589592 (-0.00%)
Send messages: 7375047 -> 7375053 (+0.00%); split: -0.00%, +0.00%
Loop count: 46313 -> 46315 (+0.00%); split: -0.01%, +0.01%
Spill count: 110184 -> 54670 (-50.38%); split: -50.79%, +0.41%
Fill count: 213724 -> 104802 (-50.96%); split: -51.43%, +0.47%
Scratch Memory Size: 9406464 -> 3375104 (-64.12%); split: -64.35%, +0.23%
Our older Shadow of the Tomb Raider fossil is particularly helped with
over a 90% reduction in scratch access (spills, fills, and scratch
size). However, benchmarking in the actual game shows no change in
performance. We're thinking the game's shaders have been updated since
our capture.
Ian noted that there was a bug here where we'd accidentally CSE two ADD3
instructions with null destinations and different src[2] that couldn't
be dead code eliminated due to conditional mods. However, this is only
a bug in the new cse_defs pass so we don't need to nominate this for
stable branches.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29848>
These were only applied in emit_apply_pipe_flushes but in theory could
be required for some other individually shot pipe controls.
Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Rohan Garg <rohan.garg@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29897>
This fixes corruption of push constants on Xe2 due to a mismatch in
the uniform layout implemented by the compiler and assumed by the
driver. To fix it we need to align the push constant ranges computed
by the Vulkan driver to a multiple of the GRF size of the platform.
Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29926>
This implements a replacement for the previous implementation of
nir_intrinsic_load_barycentric_at_sample that relied on the Pixel
Interpolator shared function, since it's going to be removed from the
hardware from Xe2 onwards.
This implementation simply looks up the X/Y offsets of each sample
index on the table provided in the PS thread payload by using indirect
addressing, then does the actual interpolation by recursing into
emit_pixel_interpolater_alu_at_offset() introduced in the previous
commit.
Note that even though this is only immediately useful on Xe2+
platforms there's no reason why it shouldn't work on earlier
platforms, as long as we have the sample X/Y offsets available in the
thread payload.
Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29847>
This implements a replacement for the previous implementation of
nir_intrinsic_load_barycentric_at_offset that relied on the Pixel
Interpolator shared function, since it's going to be removed from the
hardware from Xe2 onwards.
That's okay since we can get all the primitive setup information
needed for interpolation at an arbitrary coordinate: We use the X/Y
offset relative to the "X/Y Start" coordinates from the thread payload
order to evaluate the plane equations also provided in the thread
payload for each barycentric coordinate of each polygon. The
evaluation of the barycentric plane equations (and the RHW plane
equation for perspective-correct interpolation) uses the accumulator
and MAD/MAC for ALU efficiency, but that means we need to manually
split instructions to fit the width of the accumulator. The division
and scaling for perspective-correct interpolation is also now done in
the shader if necessary.
Note that even though this is only immediately useful on Xe2+, the
thread payload numbers are filled out for older platforms, and the EU
restrictions of previous Xe platforms are taken into account, mostly
for the purposes of testing and performance evaluation.
Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29847>
Floating-point offsets work fine in combination with the
floating-point arithmetic we're about to lower these intrinsics into,
and they require less instructions than converting to fixed-point and
then back. No reason to take the precision/range hit nor the extra
instructions.
Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29847>
Plumb the prog_data bits recently introduced for ALU-based
interpolation down to 3DSTATE_PS_EXTRA emission in the Vulkan driver.
Even though this is only going to be used on Xe2+ for now there seems
to be no reason not to plumb the bits on all platforms back to gfx11,
since the 3DSTATE_PS_EXTRA enables already existed on ICL.
Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29847>
The ALU-based implementation of the barycentric interpolation
intrinsics introduced by a subsequent commit will require some
primitive setup information not delivered in the PS thread payload
unless explicitly requested:
- "Source Depth and/or W Attribute Vertex Deltas" if a
perspective-correct interpolation mode is used -- Note that this is
already requested for CPS interpolation, we just need to enable it
in more cases.
- "Perspective Bary Planes" if a perspective-correct interpolation
mode is used.
- "Non-Perspective Bary Planes" if a non-perspective-corrected
interpolation mode is used.
- "Sample offsets" if any at_sample interpolation is used so the
coordinate offsets of the sample can be calculated.
This ALU implementation of barycentric interpolation will only be
needed for *_at_offset and *_at_sample interpolation, since the fixed
function hardware still computes barycentrics for us at the current
sample coordinates, only the cases that previously relied on the Pixel
Interpolator shared function need to be re-implemented with ALU
instructions, since that shared function will no longer exist on Xe2
hardware.
Thanks to Rohan for a bugfix of the uses_sample_offsets calculation,
this patch includes his fix squashed in.
Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29847>
This has been required from the kernel for quite some time, but it
wasn't (and technically still isn't) explicitly checked. Commit
7da5b1caef changed the code paths such that an assertion is hit when
I915_PARAM_HAS_EXEC_TIMELINE_FENCES is not available.
Fixes: 7da5b1caef ("anv: move trtt submissions over to the anv_async_submit")
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29920>
The ISL_AUX_USAGE_STC_CCS is the last defined usage. We could
get a random value from isl_encode_aux_mode[] once it is passed
as index if its element is not initialized.
Explicit initialization of ISL_AUX_USAGE_HIZ_CCS_WT is added too.
Suggested by Nanley Chery <nanley.g.chery@intel.com>
Signed-off-by: Jianxun Zhang <jianxun.zhang@intel.com>
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29906>
From Bspec 56423 (r58507), the legacy full resovling and
partial resolving options are gone since Xe2. They also
cause hang on Xe2 if not disabled.
Some suggested code from Nanley Chery <nanley.g.chery@intel.com> is
included.
Signed-off-by: Jianxun Zhang <jianxun.zhang@intel.com>
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29906>
The render surface state doesn't have these features any
more since Xe2.
Signed-off-by: Jianxun Zhang <jianxun.zhang@intel.com>
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29906>
Update mapping between render target surface formats and
compression formats.
Some preexisting correct mappings are also re-ordered to
the order of types in the spec for an easier verification
(top to bottom and left to right).
Signed-off-by: Jianxun Zhang <jianxun.zhang@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29905>
It turns out the problem I was trying to catch in be4fa59a72
("intel/brw: Clear write_accumulator flag when changing the
destination") also came from the DPAS lowering pass itself. Checking for
invalid uses of the feature in fs_validate helped detect the problem.
Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28834>
The original goal was to get rid of a bunch of the magic constants
sprinkled through the function. Once I did that, I realized that there
was a lot my symmertry between the row-major and column-major paths
possible.
It's +6 lines of code, but about 15 of those lines are comments
explaining things that were not obvious in the original code.
v2: Save duplicated condition in a variable with a meaningful
name. Suggested by Caio.
Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28834>
Even though the hardware does not naively support these configurations,
there are many potential benefits to advertising them. These
configurations can theoretically use half the memory bandwidth for loads
and stores. For large matrices, that can be the limiting in performance.
The current implementation, however, has a number of significant
problems.
The conversion from float16 to float32 is performed in the driver during
conversion from NIR. As a result, many common usage patterns end up
doing back-to-back conversions to and from float16 between matrix
multiplications (when the result of one multiplication is used as the
accumulator for the next).
The float16 version of the matrix waste half the possible register
space. Each float16 value sits alone in a dword. This is done so that
the per-invocation slice of an 8x8 float16 result matrix and an 8x8
float32 result matrix will have the same number of elements. This makes
it possible to do straightforward implementations of all the unary_op
type conversions in NIR.
It would be possible to perform N:M element type conversions in the
backend using specialized NIR intrinsics. However, per #10961, this
would be very, very painful. My hope is that, once a suitable resolution
for that issue can be found, support for these configs can be restored.
Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28834>
This fixes some cacheline flush artifacts
Signed-off-by: Juston Li <justonli@google.com>
Reviewed-by: Yiwei Zhang <zzyiwei@chromium.org>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29882>
BSpec 62720 states that the previous and current offsets remains the
same as previous gfx versions.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29899>
Also added pec_offset to struct intel_perf_query_info and two new
hw variables needed by this XML, those changes are required to at
least compile with this new XML.
pec_offset will be set in the next patches.
Acked-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29899>
Next patch will need to frequently get the count of supported engine
for compute and copy engines, so to reduce the overhead of doing
KMD queries at every call here caching this information into
intel_device_info struct.
With that ANV and Iris would need to set this information as intel/dev
can't depend on intel/common, so here adding a single function
to update intel_device_info with all fields filled by intel/common
functions.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29899>
Xe2 platforms will have way more query fields and allocation of that
will need to be increased but first lets add a function to return the
max_fields and assert if tried to access more query fields then
allocated.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29899>
Most places we follow the newest GFX version first, so doing that
here.
No changes in behavior exepected.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29899>
