i965: Use the VAOs binding information in array setup.

The change basically reimplements array setup by walking
the gl_contex::Array._DrawVAO on a per binding sequence.
In this way we can make direct use of the application
provided minimum set of buffer objects and emit fewer relocs.

v2: Rebase onto:
    compiler: Move double_inputs to gl_program::DualSlotInputs
v3: Rebase onto introduction of gl_vertex_format
v4: Reorder and extend patch series.
v5: Split out two hunks into seperate patches.
v6: Avoid using GL* types.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Mathias Fröhlich <Mathias.Froehlich@web.de>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/308>

i965: Use 32 bit u_bit_scan for vertex attribute setup.

The vertex array object contains 32 vertex arrays. By that we cannot
reference more then these in the vertex shader inputs. So, we can use
the 32 bits u_bit_scan function to iterate the vertex shader inputs
and place an assert that only these are present. Also place an other
assert that the vertex array setup in i965 does not overrun the
enabled array in brw_context::vs::enabled.

v2: Style fixes.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Mathias Fröhlich <Mathias.Froehlich@web.de>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/308>

iris: Move down iris_emit_sbe_swiz in profiles.

Harvest the information gathered in the previous patch
inside of iris.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Mathias Fröhlich <Mathias.Froehlich@web.de>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/308>

i965: Move down genX_upload_sbe in profiles.

Avoid looping over all VARYING_SLOT_MAX urb_setup array
entries from genX_upload_sbe. Prepare an array indirection
to the active entries of urb_setup already in the compile
step. On upload only walk the active arrays.

v2: Use uint8_t to store the attribute numbers.
v3: Change loop to build up the array indirection.
v4: Rebase.
v5: Style fix.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Signed-off-by: Mathias Fröhlich <Mathias.Froehlich@web.de>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/308>

panfrost: Get rid of ctx->payloads[]

Now that vertex/tiler payloads are re-initialized at draw/launch_grid
time we can get of of the ctx->payloads[] field and allocate those
payload templates on the stack.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>

panfrost: Use ctx->active_prim in panfrost_writes_point_size()

Check ctx->active_prim instead of prefix.draw_mode so we can eventually
get rid of ctx->payloads.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>

panfrost: Re-init the VT payloads at draw/launch_grid() time

Doing that should help us avoiding state leaks between draw/launch_grid
calls.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>

panfrost: Move panfrost_emit_varying_descriptor() to pan_cmdstream.c

Move panfrost_emit_varying_descriptor() to pan_cmdstream.c where other
emit functions live and adjust the prototype to be consistent with other
emit helpers.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>

panfrost: Move panfrost_emit_vertex_data() to pan_cmdstream.c

Move panfrost_emit_vertex_data() to pan_cmdstream.c where other emit
functions live, and adjust the prototype for consistency.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>

panfrost: Inline panfrost_queue_draw() and panfrost_emit_for_draw()

Now that panfrost_queue_draw() and panfrost_emit_for_draw() are
small enough, we can move the code to panfrost_draw_vbo() and have all
vt and emit calls grouped in one place.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>

panfrost: Move vertex/tiler payload initialization out of panfrost_draw_vbo()

Add a panfrost_vt_set_draw_info() function taking care of the draw
related initialization of the vertex and tiler payloads.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>

panfrost: Move streamout offset update out of panfrost_draw_vbo()

That's part of out attempt to shrink panfrost_draw_vbo().

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>

panfrost: Rename panfrost_stage_attributes()

panfrost_stage_attributes() is emitting mali_attr_meta descriptors, so
let's rename it accordingly and move it to pan_cmdstream.c.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>

panfrost: Move the mali_attr.src_offset adjustment to a sub-function

Create a panfrost_vertex_state_upd_attr_offs() helper to adjust
the attr_meta src_offsets.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>

panfrost: Emit attribute descriptors after patching the templates

Patching attribute desc when they are in cacheable memory should be
more efficient.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>

panfrost: Prepare attribute for builtins at state creation time

The attribute meta slots reserved for gl_VertexID and gl_InstanceID
can be pre-filled at state creation time. Only the index needs to be
adjusted when attributes are generated.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>

panfrost: Ignore BO start addr when adjusting src_offset

BOs are guaranteed to be aligned on 4K which inherently guarantees the
64 byte alignment.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>

panfrost: Drop initial mali_attr_meta.src_offset assignment

The mali_attr_meta.src_offset is initialized to
pipe_vertex_element.src_offset at vertex element creation time, but
this field is then adjusted when the descrptors are emitted. Let's
use the pipe_vertex_element data we saved earlier and drop this initial
assignment.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>

panfrost: Add an helper to emit a pair of vertex/tiler jobs

Add the panfrost_emit_vertex_tiler_jobs() helper and use it in
panfrost_queue_draw().

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>

panfrost: Move sampler/tex descs emission helpers to pan_cmdstream.c

Move panfrost_upload_texture_descriptors() and
panfrost_upload_sampler_descriptors() to pan_cmdstream.c where other
cmdstream related helpers live. While at it, change their prototype
and name to make it consistent with the other helpers and prepare
things for ctx->payloads[] removal.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>

panfrost: Add a panfrost_sampler_desc_init() helper

It just makes sense to group all HW descriptor initilization logic in
pan_cmdstream.c, so let's move this code out of
panfrost_create_sampler_state().

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>

panfrost: Prepare shader_meta descriptors at emission time

This way we avoid potential state leaks and keep the shader_meta
initialization in once place. The time spent preparing the shader
descriptors should be negligible compared to the time spent pushing
those descriptors to the transient buffer (remember we are writing to
non-cacheable memory here).

Note that we might get back to some sort of shader_meta descriptor
caching at some point if that proves necessary, but now we have those
panfrost_frag_meta_xxx_update() helpers now where xxx maps directly to
a CSO bind, which should ease desc template updates.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>

panfrost: Prepare things to get rid of panfrost_shader_state.tripipe

panfrost_shader_state.tripipe is used as a template for shader_meta
desc emission, but shader_meta desc preparation time should be negligible
compared to desc emission time (remember we are writing to non-cacheable
memory here). Let's prepare for generating the the shader_meta desc
entirely at draw time by adding the necessary fields to
panfrost_shader_state.

Note that we might brink back some sort of shader_meta desc caching at
some point, but let's simplify things a bit for now.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>

panfrost: Add an helper to update the rasterizer part of a tiler job desc

That's part of our attempt to make panfrost_emit_for_draw() a bit more
dry and eventually get rid of it by inlining the code in
panfrost_draw_vbo(). This is just one step in this direction.

Note that we get rid of the panfrost_rasterizer.tiler_gl_enables field
along the way, as setting/clearing those bits at draw time instead of
doing when the state is created should make a huge difference. We might
get back to pre-computed VT descs at some point, but let's keep things
simple for now.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>

panfrost: Add an helper to update the occclusion query part of a tiler job desc

That's part of our attempt to make panfrost_emit_for_draw() a bit more
dry and eventually get rid of it by inlining the code in
panfrost_draw_vbo(). This is just one step in this direction.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>

panfrost: Simplify panfrost_emit_for_draw() and make it private

Now that panfrost_launch_grid() no longer calls panfrost_emit_for_draw(),
we can keep it private to pan_context.c and drop all compute-related
stuff.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>

panfrost: Stop using panfrost_emit_for_draw() for compute jobs

We actually need a small subset of what's done in
panfrost_emit_for_draw() when emitting compute jobs, so let's copy
what we need directly in panfrost_launch_grid() instead of re-using
this function whose initial purpose was to generate vertex/tiler jobs
for draw operations.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>

panfrost: Move panfrost_attach_vt_framebuffer() to pan_cmdstream.c

Move panfrost_attach_vt_framebuffer() to pan_cmdstream.c and change its
name to panfrost_vt_attach_framebuffer() so we can use a consistent
prefix (panfrost_vt_) for all helpers initializing/updating
midgard_payload_vertex_tiler fields.

Note that the function only initializes one VT object now.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>

panfrost: Dissociate shader meta patching from the desc emission

Right now we emit two shader descriptors for the fragment shader, one
when panfrost_patch_shader_state() is called, and the final one
including both the shader_meta and the blend RT descriptors.
The first generated fragment shader descriptor is never used, since the
second one overrides the postfix.shader pointer.

Let's dissociate the state patching logic from the descriptor emission
so we don't upload descriptors that are never used.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>

panfrost: Move shared mem desc emission out of panfrost_launch_grid()

Let's move the shared memory descriptor emission to a dedicated function
living with its pairs in pan_cmdstream.c.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>

panfrost: Move the const buf emission logic out of panfrost_emit_for_draw()

Let's move the constant buffer emission logic in a dedicated helper
to make panfrost_emit_for_draw() a bit more dry.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>

panfrost: Move viewport desc emission out of panfrost_emit_for_draw()

Let's move the viewport descriptor emission logic to a dedicated helper
in order to shrink a bit the panfrost_emit_for_draw().

Note that this helper is placed in a new pan_cmdstream.c file where we
will group all cmdstream related helpers (everything that's related to
HW descriptor initialization emission).

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>

panfrost: Move the batch stack size adjustment out of panfrost_queue_draw()

That's part of our attempt to sanitize panfrost_queue_draw(),
panfrost_draw_vbo() and panfrost_emit_for_draw(). The new
panfrost_batch_adjust_stack_size() helper is placed in pan_job.c, where
all batch related functions live.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>

panfrost: Add an helper to retrieve the currently active shader state

Doing that improves readability and helps avoiding code duplication.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>

panfrost: Assign primitive_size.pointer only if writes_point_size() returns true

Checking vs->writes_point_size is not enough, as we might have a vertex
shader writing point size, but a primitive that's not MALI_POINT. That
currently works because emit_varying_descriptor() is called before the
primitive_size.constant field is update, but let's make the logic more
robust, just in case things are re-ordered at some point.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>

radv/sqtt: describe pipeline and wait events barriers

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4031>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4031>

radv/rgp: bump the instrumentation spec version to 1

RGP expects the version to be 1, otherwise it doesn't display the
barriers (including layout transitions) correctly.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4031>

radv/sqtt: describe render pass color/depthstencil clears

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4031>

radv/sqtt: describe draw/dispatch and emit event markers

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4031>

radv/sqtt: describe begin/end command buffers with user markers

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4031>

radv: initial implementation of the driver internal layer SQTT

This layer is used to emit SQTT user markers to command buffers. It
currently only emits API markers but it will consolidated soon with
barrier markers and more.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4031>

radv/sqtt: add a helper that emits thread trace userdata markers

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4031>

radv: use device entrypoints from the SQTT layer if enabled

This allows to override RADV device entrypoints if the prefix
is 'sqtt' instead of 'radv'.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4031>

radv/entrypoints: declare a driver internal layer for SQTT

Some Vulkan commands will be overriden to emit user SQTT markers.
These markers are then used by the Radeon GPU Profiler to display
timings, barrier operations (cache flushes, pipeline stalls, layout
transitions) and more.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4031>

panfrost: Pass the sampler view format when creating a tex descriptor

A sampler can use a different format than the native texture format.
Let's pass the sampler format instead of the native texture format when
creating a texture descriptor.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4101>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4101>

Revert "panfrost: Z24 variants should be sampled as R32UI"

Commit 0406ea485649 ("panfrost: Z24 variants should be sampled as
R32UI") causes a regression when depth textures are sampled.

It's still not clear how MALI_Z32 can work for for Z32 and Z24{S,X}8,
but let's leave that question for later.

Reported-by: Icecream95 <ixn@keemail.me>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4101>

gallium: Add forgotten docs for new CAPs related to transform feedback

These three caps were missing docs.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4115>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4115>

lima: enable minmax cache for index buffers

Re-use minmax cache for index buffers from panfrost.

Reviewed-by: Andreas Baierl <ichgeh@imkreisrum.de>
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4051>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4051>

panfrost: split index cache into shared part

Split it into shared part since we're going to re-use it in lima.

Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4051>

st/mesa: fix a possible crash with selection and feedback modes

The index bounds are always valid without an index buffer, but they won't be.

Reviewed-by: Dave Airlie <airlied@redhat.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3986>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3986>

st/mesa: flush the bitmap cache before st/dri and vbo flushes

Reviewed-by: Dave Airlie <airlied@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3986>

intel/fs: Fix workaround for VxH indirect addressing bug under control flow.

The current workaround for this hardware bug involved marking the ADD
instruction used to initialize the address register as NoMask on
Gen12, which was based on the assumption that the problem was caused
by a hardware bug affecting the application of the execution mask to
the address register write.

However that doesn't seem to be the case: The address register write
was working correctly, the real problem leading to hangs on TGL is
that the indirect addressing logic is unable to deal with garbage
values in the address register (e.g. misaligned offsets), even for
channels which are currently inactive due to non-uniform control flow.
The current workaround isn't able to avoid that situation in general,
since the result of the NoMask ADD instruction for a dead channel is
calculated based on the corresponding (dead) component of the
indirect_byte_offset source, which would still be undefined in the
likely case that the source was initialized under control flow itself.

This would lead to hangs whenever MOV_INDIRECT was used under
non-uniform control flow in some scenarios like a tessellation shader
from GFXBench5/gl_4 (AKA Car Chase) on TGL.  In addition I've managed
to reproduce the same issue on earlier platforms by initializing the
whole address register with garbage before the ADD instruction, so
this seems to be a long-standing issue we have avoided mostly by luck.

This patch fixes the problem and applies the workaround to all
platforms, since even when the hardware is able to deal with garbage
address values without hanging there might be a significant
performance cost from reading random GRF registers due to the useless
extra EU cycles spent fetching registers for dead channels and due to
the potential for unintended serialization with respect to other
random instructions that could be executed in parallel, which may have
had a cost of the order of hundreds of cycles in the worst case
scenario.

Fixes: f93dfb509c "intel/fs: Write the address register with NoMask for MOV_INDIRECT"
Tested-by: Rafael Antognolli <rafael.antognolli@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

intel/fs: Allow NOT instructions in conditional discard optimization

I don't know why I explicitly disallowed NOT in the first place. :(

All Intel platforms had similar results. (Ice Lake shown)
total instructions in shared programs: 14549846 -> 14549770 (<.01%)
instructions in affected programs: 12934 -> 12858 (-0.59%)
helped: 76
HURT: 0
helped stats (abs) min: 1 max: 1 x̄: 1.00 x̃: 1
helped stats (rel) min: 0.13% max: 5.56% x̄: 1.04% x̃: 0.90%
95% mean confidence interval for instructions value: -1.00 -1.00
95% mean confidence interval for instructions %-change: -1.25% -0.84%
Instructions are helped.

total cycles in shared programs: 203793967 -> 203792696 (<.01%)
cycles in affected programs: 77920 -> 76649 (-1.63%)
helped: 67
HURT: 1
helped stats (abs) min: 2 max: 36 x̄: 19.00 x̃: 16
helped stats (rel) min: 0.04% max: 4.68% x̄: 2.35% x̃: 2.28%
HURT stats (abs)   min: 2 max: 2 x̄: 2.00 x̃: 2
HURT stats (rel)   min: 0.03% max: 0.03% x̄: 0.03% x̃: 0.03%
95% mean confidence interval for cycles value: -20.75 -16.63
95% mean confidence interval for cycles %-change: -2.57% -2.05%
Cycles are helped.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3965>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3965>

intel/fs: Do cmod prop again after scheduling

Pre-RA scheduling can create more opportunities for CMOD propagation.
This takes advantage of that.

It may be worth doing this again in post-RA scheduling, but there are
additional problems there.

I'm a little torn about the use of the OPT() macro.  On the one hand, it
would be confusing to see dumps from INTEL_DEBUG=optimizer that don't
match the final output.  On the other hand, since register allocation
can fail, the same pass can be run multiple times.  Each time one or
both passes might or might not make progress.  This would also lead to
incongruous, confusing output.

Ice Lake
total instructions in shared programs: 14549808 -> 14548529 (<.01%)
instructions in affected programs: 231985 -> 230706 (-0.55%)
helped: 632
HURT: 0
helped stats (abs) min: 1 max: 32 x̄: 2.02 x̃: 1
helped stats (rel) min: 0.05% max: 2.56% x̄: 0.57% x̃: 0.41%
95% mean confidence interval for instructions value: -2.25 -1.79
95% mean confidence interval for instructions %-change: -0.61% -0.54%
Instructions are helped.

total cycles in shared programs: 203770850 -> 203776599 (<.01%)
cycles in affected programs: 2495653 -> 2501402 (0.23%)
helped: 282
HURT: 197
helped stats (abs) min: 1 max: 242 x̄: 20.37 x̃: 16
helped stats (rel) min: <.01% max: 11.65% x̄: 0.91% x̃: 0.64%
HURT stats (abs)   min: 2 max: 609 x̄: 58.35 x̃: 20
HURT stats (rel)   min: <.01% max: 10.97% x̄: 1.35% x̃: 0.66%
95% mean confidence interval for cycles value: 5.27 18.73
95% mean confidence interval for cycles %-change: -0.16% 0.21%
Inconclusive result (%-change mean confidence interval includes 0).

LOST:   0
GAINED: 2

Skylake
total instructions in shared programs: 13447708 -> 13446594 (<.01%)
instructions in affected programs: 216813 -> 215699 (-0.51%)
helped: 623
HURT: 0
helped stats (abs) min: 1 max: 32 x̄: 1.79 x̃: 1
helped stats (rel) min: 0.06% max: 2.86% x̄: 0.59% x̃: 0.42%
95% mean confidence interval for instructions value: -1.99 -1.59
95% mean confidence interval for instructions %-change: -0.63% -0.55%
Instructions are helped.

total cycles in shared programs: 193759224 -> 193762726 (<.01%)
cycles in affected programs: 2540035 -> 2543537 (0.14%)
helped: 249
HURT: 190
helped stats (abs) min: 2 max: 196 x̄: 16.67 x̃: 14
helped stats (rel) min: <.01% max: 4.71% x̄: 0.66% x̃: 0.62%
HURT stats (abs)   min: 2 max: 614 x̄: 40.27 x̃: 14
HURT stats (rel)   min: 0.02% max: 5.78% x̄: 0.86% x̃: 0.37%
95% mean confidence interval for cycles value: 2.57 13.39
95% mean confidence interval for cycles %-change: -0.11% 0.11%
Inconclusive result (%-change mean confidence interval includes 0).

LOST:   0
GAINED: 1

Broadwell
total instructions in shared programs: 13418631 -> 13417393 (<.01%)
instructions in affected programs: 243192 -> 241954 (-0.51%)
helped: 694
HURT: 0
helped stats (abs) min: 1 max: 31 x̄: 1.78 x̃: 1
helped stats (rel) min: 0.06% max: 2.86% x̄: 0.59% x̃: 0.44%
95% mean confidence interval for instructions value: -1.95 -1.62
95% mean confidence interval for instructions %-change: -0.62% -0.55%
Instructions are helped.

total cycles in shared programs: 200822940 -> 200829128 (<.01%)
cycles in affected programs: 2128651 -> 2134839 (0.29%)
helped: 251
HURT: 226
helped stats (abs) min: 1 max: 200 x̄: 14.32 x̃: 12
helped stats (rel) min: <.01% max: 3.56% x̄: 0.60% x̃: 0.50%
HURT stats (abs)   min: 2 max: 611 x̄: 43.28 x̃: 18
HURT stats (rel)   min: 0.02% max: 7.03% x̄: 0.93% x̃: 0.54%
95% mean confidence interval for cycles value: 7.44 18.50
95% mean confidence interval for cycles %-change: 0.02% 0.23%
Cycles are HURT.

Haswell and Ivy Bridge had similar results. (Haswell shown)
total instructions in shared programs: 11569710 -> 11568829 (<.01%)
instructions in affected programs: 147862 -> 146981 (-0.60%)
helped: 487
HURT: 0
helped stats (abs) min: 1 max: 34 x̄: 1.81 x̃: 1
helped stats (rel) min: 0.12% max: 4.75% x̄: 0.57% x̃: 0.45%
95% mean confidence interval for instructions value: -2.03 -1.59
95% mean confidence interval for instructions %-change: -0.61% -0.54%
Instructions are helped.

total cycles in shared programs: 187079425 -> 187079437 (<.01%)
cycles in affected programs: 1088494 -> 1088506 (<.01%)
helped: 234
HURT: 124
helped stats (abs) min: 2 max: 282 x̄: 22.66 x̃: 16
helped stats (rel) min: 0.03% max: 7.88% x̄: 0.93% x̃: 0.75%
HURT stats (abs)   min: 1 max: 276 x̄: 42.86 x̃: 20
HURT stats (rel)   min: 0.03% max: 6.70% x̄: 0.99% x̃: 0.53%
95% mean confidence interval for cycles value: -5.54 5.61
95% mean confidence interval for cycles %-change: -0.41% -0.11%
Inconclusive result (value mean confidence interval includes 0).

total spills in shared programs: 7746 -> 7740 (-0.08%)
spills in affected programs: 6 -> 0
helped: 1
HURT: 0

total fills in shared programs: 6264 -> 6258 (-0.10%)
fills in affected programs: 6 -> 0
helped: 1
HURT: 0

Sandy Bridge
total instructions in shared programs: 10688576 -> 10688177 (<.01%)
instructions in affected programs: 137875 -> 137476 (-0.29%)
helped: 358
HURT: 0
helped stats (abs) min: 1 max: 9 x̄: 1.11 x̃: 1
helped stats (rel) min: 0.15% max: 1.43% x̄: 0.35% x̃: 0.28%
95% mean confidence interval for instructions value: -1.18 -1.05
95% mean confidence interval for instructions %-change: -0.37% -0.32%
Instructions are helped.

total cycles in shared programs: 153397144 -> 153393046 (<.01%)
cycles in affected programs: 1220713 -> 1216615 (-0.34%)
helped: 255
HURT: 31
helped stats (abs) min: 1 max: 304 x̄: 16.71 x̃: 16
helped stats (rel) min: <.01% max: 6.70% x̄: 0.41% x̃: 0.31%
HURT stats (abs)   min: 1 max: 41 x̄: 5.29 x̃: 3
HURT stats (rel)   min: 0.02% max: 0.65% x̄: 0.16% x̃: 0.11%
95% mean confidence interval for cycles value: -17.44 -11.22
95% mean confidence interval for cycles %-change: -0.40% -0.29%
Cycles are helped.

Iron Lake
total instructions in shared programs: 8106894 -> 8105529 (-0.02%)
instructions in affected programs: 287197 -> 285832 (-0.48%)
helped: 1099
HURT: 0
helped stats (abs) min: 1 max: 10 x̄: 1.24 x̃: 1
helped stats (rel) min: 0.16% max: 4.55% x̄: 0.67% x̃: 0.61%
95% mean confidence interval for instructions value: -1.29 -1.19
95% mean confidence interval for instructions %-change: -0.70% -0.64%
Instructions are helped.

total cycles in shared programs: 188347022 -> 188344266 (<.01%)
cycles in affected programs: 3740632 -> 3737876 (-0.07%)
helped: 758
HURT: 10
helped stats (abs) min: 2 max: 38 x̄: 3.68 x̃: 2
helped stats (rel) min: <.01% max: 1.00% x̄: 0.12% x̃: 0.08%
HURT stats (abs)   min: 2 max: 4 x̄: 3.20 x̃: 4
HURT stats (rel)   min: 0.03% max: 0.07% x̄: 0.06% x̃: 0.07%
95% mean confidence interval for cycles value: -3.82 -3.35
95% mean confidence interval for cycles %-change: -0.13% -0.11%
Cycles are helped.

GM45
total instructions in shared programs: 4985449 -> 4984768 (-0.01%)
instructions in affected programs: 145154 -> 144473 (-0.47%)
helped: 547
HURT: 0
helped stats (abs) min: 1 max: 10 x̄: 1.24 x̃: 1
helped stats (rel) min: 0.16% max: 2.86% x̄: 0.66% x̃: 0.61%
95% mean confidence interval for instructions value: -1.31 -1.18
95% mean confidence interval for instructions %-change: -0.69% -0.62%
Instructions are helped.

total cycles in shared programs: 128835062 -> 128833144 (<.01%)
cycles in affected programs: 2720650 -> 2718732 (-0.07%)
helped: 517
HURT: 1
helped stats (abs) min: 2 max: 38 x̄: 3.71 x̃: 2
helped stats (rel) min: <.01% max: 0.89% x̄: 0.11% x̃: 0.07%
HURT stats (abs)   min: 2 max: 2 x̄: 2.00 x̃: 2
HURT stats (rel)   min: 0.04% max: 0.04% x̄: 0.04% x̃: 0.04%
95% mean confidence interval for cycles value: -4.02 -3.39
95% mean confidence interval for cycles %-change: -0.12% -0.10%
Cycles are helped.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3965>

docs: update calendar, add news item, and link releases notes for 19.3.5

Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4121>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4121>

docs: add release notes for 19.3.5

Signed-off-by: Eric Engestrom <eric@engestrom.ch>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4121>

st/nine: Fix incompatible-pointer-types-discards-qualifiers errors.

../src/gallium/state_trackers/nine/nine_ff.c:129:28: error: initializing 'struct nine_ff_vs_key *' with an expression of type 'const void *' discards qualifiers [-Werror,-Wincompatible-pointer-types-discards-qualifiers]
    struct nine_ff_vs_key *vs = key;
                           ^    ~~~
../src/gallium/state_trackers/nine/nine_ff.c:145:28: error: initializing 'struct nine_ff_ps_key *' with an expression of type 'const void *' discards qualifiers [-Werror,-Wincompatible-pointer-types-discards-qualifiers]
    struct nine_ff_ps_key *ps = key;
                           ^    ~~~

Fixes: fdd96578ef2d ("nine: Add state tracker nine for Direct3D9 (v3)")
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Andre Heider <a.heider@gmail.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4015>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4015>

radeonsi: determine uses_bindless_samplers correctly

Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4079>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4079>

ac: add a bug workaround for the 100% NGG culling case

Fixes: 8db00a51f85 - radeonsi/gfx10: implement NGG culling for 4x wave32 subgroups
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4079>

radeonsi: add a bug workaround for NGG - LATE_ALLOC_GS

Cc: 19.3 20.0 <mesa-stable@lists.freedesktop.org>
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4079>

radeonsi: enable EXT_texture_shadow_lod

Signed-off-by: Sonny Jiang <sonny.jiang@amd.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4079>

egl/android: require ANDROID_native_fence_sync for buffer age

Querying buffer age requires a buffer to be dequeued.  But dequeuing
without ANDROID_native_fence_sync might imply eglClientWaitSync,
which results in a deadlock as the display lock is already held by
eglQuerySurface.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/221>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/221>

radv/sqtt: fix RADV_THREAD_TRACE_BUFFER_SIZE spelling

Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4116>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4116>

docs/releasing: add missing </li> tags

Signed-off-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4094>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4094>

docs: trivial fix for html structure

Signed-off-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4094>

glsl/opt_minmax: Add support for float16

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3929>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3929>

glsl/lower_instructions: Handle fp16 for FDIV_TO_MUL_RCP

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3929>

glsl/lower_instructions: Handle fp16 for MOD_TO_FLOOR

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3929>

glsl/lower_instructions: Use float16 constants when appropriate

When lowering instructions that involve floating-point constants, pick
the appropriate type for the constant so that it will also work with
float16 parameters.

v2: Use float16_t constructor instead of helper function.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3929>

glsl/validate: Allow float16 in the expression tree

v2. [Hyunjun Ko (zzoon@igalia.com)] squashed 3 commits
into one commit.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3929>

glsl: Add type queries for fp16+float and fp16+float+double

Following the is_integer_32_64() convention, add is_float_16_32() and
float_16_32_64() for these commonly tested combinations.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3929>

glsl: Handle fp16 unary operations when lowering matrix operations

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3929>

glsl: Add ir_unop_f2fmp

This is the same as ir_unop_f2f16 except that it comes with a promise
that it is safe to optimise it out if the result is immediately
converted back to float32 again. Normally this would be a lossy
operation but it is safe to do if the conversion was generated as part
of the precision lowering pass.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3929>

glsl: Add b2f16 and f162b conversion operations

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3929>

glsl: Add IR conversion ops for 16-bit float types

Adds ir_unop_f162f and ir_unop_f2f16.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3929>

glsl: Expand fp16 to float before constant expression evaluation

This way the generated constant folding code doesn't need to
understand fp16.  All operations have to be expanded to full float for
evaulation on the CPU, so we might as well do it up front.  As far as
GLSL is concerned, fp16 isn't a separate type from float, so
everything we're supposed to support for float we need to do for fp16.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3929>

glsl: Implement constant propagation for fp16

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3929>

glsl: Add fp16 case for ir_triop_lrp optimization

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3929>

glsl: Add support for float16 types in the IR tree

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3929>

glsl: Add ir_constant constructor for fp16

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3929>

freedreno/ir3: Don't fold conversions into sign

Not supported.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3929>

gitlab-ci: rules:changes to test on tested drivers changes

For now tests only use these drivers:
  * llvmpipe
  * softpipe
  * freedreno
  * lima
  * etnaviv
  * panfrost

So using rules:changes gitlab feature to run the tests when the changes
made are potentially affecting these drivers.

A few notes:
  * the following code:
      .piglit-test:
        extends:
          - .test-gl
          - .llvmpipe-rules
    makes gitlab replace .test-gl "rules:changes" values by the one from
    ".llvmpipe-rules".
  * rules:changes always matches for non-MR new branches so jobs will always be
    created (and they'll be run if their dependencies are run). For pushes to
    existing branches the files changed by the push are used to match the
    rules:changes path.
  * the same gitlab feature could be used for some build jobs

Acked-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/2569>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/2569>

amd: join emit_kill() from radv and radeonsi in ac_nir_to_llvm

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4047>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4047>

radv: use nir_lower_discard_to_demote to work around game bugs

Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4047>

radeonsi: lower discard to demote when FS_CORRECT_DERIVS_AFTER_KILL is enabled

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4047>

amd/llvm: implement nir_intrinsic_demote(_if) and nir_intrinsic_is_helper_invocation

The current implementation uses a temporary helper variable
to ensure correct behavior until LLVM provides an intrinsic.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4047>

nir: add pass to lower discard() to demote()

This pass is intended to work around game bugs, only!
It also lowers nir_intrinsic_load_helper_invocation to
nir_intrinsic_is_helper_invocation for consistency.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4047>

nir: gather info whether a shader uses demote_to_helper

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4047>

docs: fix typo in v20 release notes

It makes no sense to wait for it to stabilize on a version released
months previously in the previous major release cycle.

This was probably intended to be recommending the first bugfix release
of the current major.minor release cycle.

Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4106>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4106>

Revert "docs/relnotes/19.3: fix vulkan version reported"

This reverts commit 5ff443b8aa9650f907bd9b5524bab21febe42ec9

Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4112>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4112>

nir: fix compilation warning on glsl_get_internal_ifc_packing

Removes following warning:
   warning: 'const' type qualifier on return type has no effect

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4111>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4111>

gallium/swr: Fix vcvtph2ps llvm intrinsic compile error

Reviewed-by: Jan Zielinski <jan.zielinski@intel.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4090>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4090>

meson: enable -fno-common by default

This flag is enabled by default starting with gcc 10.
All the compilation issues have been fixed, so use it by default
to make sure we're not introducing regressions.

Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4058>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4058>

omx: fix build with gcc 10

bellagio/omx header files reference a global variable without the
extern keyworkd.
Now that gcc-10 enables the '-fno-common' by default the build fails.
Since these are external headers we can't easily fix them, so for
now build the omx module with the '-fcommon' flag to keep the
previous behavior.

See https://gitlab.freedesktop.org/mesa/mesa/issues/2385

Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4058>

intel/compiler: Discount NOPs from instruction counts

Scheduler changes can cause changes in the number of instructions due to
this workaround, so just don't include NOPs in the instruction counts to
prevent shader-db noise.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4093>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4093>

intel/compiler: Pass shader_stats for each SIMD mode

Passing shader_stats to the fs_generator constructor means that the
SIMD8 shader stats from the visitor (such as the scheduler mode) will be
reported out for the SIMD16/SIMD32 versions as well.

As you can see, we are now passing 'shader_stats' and 'stats' to
generate_code(), which is obviously odd looking. Ian rebased and
committed an old patch of mine which added the shader_stats struct on
July 30 in commit dabb5d4bee07 (i965/fs: Add a shader_stats struct.) and
shortly after on August 12 Jason added the brw_compile_stats struct in
commit 134607760ac2 (intel/compiler: Fill a compiler statistics struct).

I'd like to combine the two, but I'm not sure how. shader_stats is an
input to generate_code() while brw_compile_stats is an output and is
only used by the Vulkan driver. Leave it as is for now...

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4093>

intel/compiler: Pass backend_shader * to cfg_t()

As you can see, not having a pointer to the backend_shader from within
the class makes for some weird looking code.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4093>

intel/compiler: Mark visitor parameters to scheduler const

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4093>

intel/compiler: Mark some methods and parameters const

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4093>

intel/compiler: Make instructions_to_schedule a local variable

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4093>