Because we set the needs_data_cache bit from the NIR during compilation,
any time a shader was pulled out of the pipeline cache, we wouldn't set
the bit and the data cache was disabled. Fortunately, on Gen8+, this
bit is ignored because we always use the ALL section in the L3$ config
instead of separate DC and RO sections. On Gen7, however, this meant
that we were basically never running with the data cache enabled and our
compute performance was suffering massively because of it. This commit
improves Geekbench 5 scores on my Haswell GT3 by roughly 330% (no,
that's not a typo).
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3912>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3912>
Currently only implemented in the scalar backend, so only enable for
Gen8+. If support for the other opcodes is added to the vec4 backend,
Gen7 could be supported.
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/767>
There are very few times when we actually want to fetch the instance
from the anv_device. We can put up with a bit of pain there in exchange
for strongly discouraging people from doing this in general.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3461>
Having to always pull the physical device from the instance has been
annoying for almost as long as the driver has existed. It also won't
work in a world where we ever have more than one physical device. This
commit adds a new field called "physical" to anv_device and switches
every location where we use device->instance->physicalDevice to use the
new field instead.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3461>
According to the description of VkGraphicsPipelineCreateInfo(),
pViewportState, pMultisampleState, pDepthStencilState and
pColorBlendState must be ignored when rasterization is not enabled.
This avoids potentially invalid pointers being dereferenced when
rasterization is disabled. Tested with `demos_x64 VK_Parameter_Zoo`
from Renderdoc repository.
v2: Don't store the `raster_enabled` as part of anv_pipeline, just
query it from the create info. This avoids storing a state that's
only used during pipeline creation. (Jason)
Closes: https://gitlab.freedesktop.org/mesa/mesa/issues/2258
Cc: <mesa-stable@lists.freedesktop.org>
Reviewed-by: Eric Engestrom <eric@engestrom.ch> [v1]
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> [v1]
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Instead of blindly dirtying descriptors and push constants the moment we
see a pipeline change, check to see if it actually changes the bind
layout or push constant layout. This doubles the runtime performance of
one CPU-limited example running with the Dawn WebGPU implementation when
running on my laptop.
NOTE: This effectively reverts beca63c6c0. While it was a nice
optimization, it was based on prog_data and we can't do that anymore
once we start allowing the same binding table to be used with multiple
different pipelines.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
This substantially reworks both the state setup side of push constant
handling and the pipeline compile side. The fundamental change here is
that we're no longer respecting the prog_data::param array and instead
are just instructing the back-end compiler to leave the array alone.
This makes the state setup side substantially simpler because we can now
just memcpy the whole block of push constants and don't have to
upload one DWORD at a time.
This also means that we can compute the full push constant layout
up-front and just trust the back-end compiler to not mess with it.
Maybe one day we'll decide that the back-end compiler can do useful
things there again but for now, this is functionally no different from
what we had before this commit and makes the NIR handling cleaner.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
It turns off that emitting push constants is one of the hottest paths in
the driver and ANY work we do there costs us. By pre-computing things a
bit ahead of time, we shave 5% off the runtime of a CPU-limited example
running with the Dawn WebGPU implementation.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
This lets us stop tracking the pipeline layout. It also means less
indirection on a very hot path. As an extra bonus, we can make some of
our data structures smaller. No measurable CPU overhead improvement.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
In the early days of the driver we allowed layout to be VK_NULL_HANDLE
and used that for some internal pipelines when we wanted to be lazy.
Vulkan doesn't actually allow NULL layouts, however, so there's no
reason to have this check.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Instead, always emit one entry for every color attachment in the subpass
or one NULL if there are no color attachments. This will let us adjust
an Ice Lake workaround so we don't get a stall on every draw call.
Reviewed-by: Rafael Antognolli <rafael.antognolli@intel.com>
Also, use color_outputs_valid rather than nr_color_outputs since it
should be a bit more accurate.
Reviewed-by: Rafael Antognolli <rafael.antognolli@intel.com>
This adds support for
VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FLOAT_CONTROLS_PROPERTIES_KHR and
enables de Vulkan and SPIR-V extensions.
Also, notice that this includes the updates applied to the
VkPhysicalDeviceFloatControlsPropertiesKHR structure in the extension
VK_KHR_shader_float_controls v4 and Vulkan 1.1.116.
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Signed-off-by: Andres Gomez <agomez@igalia.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
It's not used by anything anymore now that so much lowering has been
moved into NIR. Sadly, we still need on in brw_compile_gs() for
geometry shaders on Sandy Bridge. Short of a lot of pointless work,
that one's probably not going away.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is all annoying plumbing work which just adds support for a
new brw_compile_stats struct. This struct provides a binary driver
readable form of the same statistics we dump out to stderr when we
INTEL_DEBUG is set with a shader stage.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
v5: add patch
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
vkpipeline-db for my Skylake GPU:
total instructions in shared programs: 8847602 -> 8847896 (<.01%)
instructions in affected programs: 10165 -> 10459 (2.89%)
helped: 8
HURT: 2
total cycles in shared programs: 1606273555 -> 1606251634 (<.01%)
cycles in affected programs: 2201803 -> 2179882 (-1.00%)
helped: 7
HURT: 3
The shaders with more instructions is due to a loop over a shared array
in Three Kingdoms being unrolled (and creating a lot of nested ifs). Not sure
if that's good or bad.
One of the shaders with worse cycles is only worse by 0.04% and the other
two are the shaders with loops unrolled.
v2: add patch
v4: don't set spirv_options.shared_addr_format
v4: move comment concerning the shared address format used and NULL
v4: add vkpipeline-db results
v5: rename to nir_lower_vars_to_explicit_types
v5: move setting of total_shared to outside brw_compile_cs
v6: set shared_addr_format
v6: formatting changes
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com> (v5)
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Previously, we assumed that the dirty bit was always 1 << VK_DYNAMIC_*
and this assumption is about to be false. Extensions which define new
VK_DYNAMIC_* enums won't be nice and tightly packed which this really
requires. Instead, add functions to don the conversions and rework the
bits a bit.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
It's kind-of an anomaly that the Intel drivers are still treating
gl_FragCoord as an input. It also makes zero sense because we have to
special-case it in the back-end.
Because ANV is the only user of nir_lower_wpos_center, we go ahead and
just update it to look for nir_intrinsic_load_frag_coord as part of this
patch.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
The rules for gl_SubgroupSize in Vulkan require that it be a constant
that can be queried through the API. However, all GL requires is that
it's a uniform. Instead of always claiming that the subgroup size in
the shader is 32 in GL like we have to do for Vulkan, claim 8 for
geometry stages, the maximum for fragment shaders, and the actual size
for compute.
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Right now, all keys have two things in common: a program string ID and a
sampler_prog_key_data. I'd like to add another thing or two and need a
place to put it. This commit adds a new brw_base_prog_key struct which
contains those two common bits.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
load_fragcoord is already handled in common code for radeonsi, so we
don't need to do anything to handle it. However, there were some passes
creating NIR with the varying, so we switch them over to the sysval. In
the case of nir_lower_input_attachments which is used by both radv and
anv, we add handling for both until intel switches to using a sysval.
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Using the existing VK_EXT_debug_report extension.
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Since NIR_PASS no longer swaps out the NIR pointer when NIR_TEST_* is
enabled, we can just take a single pointer and not a pointer to pointer.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Now that NIR_TEST_* doesn't swap the shader out from under us, it's
sufficient to just modify the shader rather than having to return in
case we're testing serialization or cloning.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
spirv_to_nir() returned the nir_function corresponding to the
entrypoint, as a way to identify it. There's now a bool is_entrypoint
in nir_function and also a helper function to get the entry_point from
a nir_shader.
The return type reflects better what the function name suggests. It
also helps drivers avoid the mistake of reusing internal shader
references after running NIR_PASS on it. When using NIR_TEST_CLONE or
NIR_TEST_SERIALIZE, those would be invalidated right in the first pass
executed.
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
