lima/parser: Add texture descriptor parser

Signed-off-by: Andreas Baierl <ichgeh@imkreisrum.de>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/2980>

lima/parser: Add RSW parsing

Signed-off-by: Andreas Baierl <ichgeh@imkreisrum.de>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/2980>

lima/parser: Some fixes and cleanups

Signed-off-by: Andreas Baierl <ichgeh@imkreisrum.de>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/2980>

vulkan/overlay: Update docs.

Add mention to overlay control socket.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>

vulkan/overlay: Add basic overlay control script.

This can be used to start/stop statistics capturing from the command
line.

v3:
 - Install script (Lionel)

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>

vulkan/overlay: Add a command to start capturing data to a file.

By default, if an output_file is specified, the overlay layer will start
capturing data immediately. After this commit, when a control socket is
used, the capture starts disabled by default, and is only enabled when a
command ":capture=1;" is received.

when the capture is enabled, we might have already accumulated some
stats. To avoid capturing such noise, we discard and reset the fps and
stats, updating the display and capturing only data from that point on.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>

vulkan/overlay: Add support for a control socket.

Add support for socket from which the overlay layer can receive
commands. This control socket can be useful to allow setting options
once the application is already running. For instance, triggering the
capture of fps data at a certain point.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>

vulkan/overlay: Add a control socket.

v2: Use a socket instead of named pipe.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>

util/os_socket: Add socket related functions.

v3:
 - Add os_socket.c/h into Makefile.sources (Lionel)
 - Add empty non-linux implementation to public functions.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>

anv: drop unused #include

Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Acked-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>

util/simple_mtx: don't set the canary when it can't be checked

Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

intel/compiler: replace `0` pointer with `NULL`

Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>

intel/compiler: add ASSERTED annotation to avoid "unused variable" warning

Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>

iris: Alphabetize source files after iris_perf.c was added

freedreno/ir3: add iterator macros

So many open coded list iterators were getting annoying.

Signed-off-by: Rob Clark <robdclark@chromium.org>

freedreno/ir3: add scheduler traces

Add some infrastructure to trace scheduler decisions.  The next patch
will add some more traces, just splitting this out to reduce clutter.

Signed-off-by: Rob Clark <robdclark@chromium.org>

freedreno/ir3: add last-baryf shaderdb stat

Sometimes sched changes that are a win in terms of instruction count
and/or register pressure, are worse in real life, due to keeping varying
storage locked for too long.  Add a shader-db stat to give this more
visibility.

Signed-off-by: Rob Clark <robdclark@chromium.org>

nir/opt_peephole_select: remove unused variables

To avoid "unused variable" warnings.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

panfrost: Report GPU name in es2_info

We can prettify the ID.

Closes #2093

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

panfrost: Add panfrost_model_name helper

This gives us a string representation of a GPU ID.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

panfrost: Move property queries to _encoder

We'll want these in non-Gallium devices.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

panfrost: Move nir_undef_to_zero to Midgard compiler

Nothing Gallium about it.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

pandecode: Add cast

Fixes minor coverity warning about the format specifier.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

panfrost: Pass size to panfrost_batch_get_scratchpad

We'll compute the size with the new scratchpad helpers.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

panfrost: Calculate maximum stack_size per batch

We'll need this so we can allocate a stack for the batch large enough
for all the jobs within it.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

pan/midgard: Handle misc. cppcheck warnings

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

pan/midgard: Remove unused ld/st packing hepers

Identified by cppcheck.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

panfrost: Handle minor cppcheck issues

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

panfrost: Emit SFBD/MFBD after a batch, instead of before

The size of the scratchpad (as well as some tiler details) depend on the
contents of the batch, so we need to wait to defer filling out the FBD
until after all draws are queued.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

panfrost: Route stack_size from compiler

We'll need it in pan_context.c

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

etnaviv: add missing vs_needs_z_div handling to NIR backend

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

etnaviv: add missing formats

Add missing texture/render formats supported by hardware.

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

etnaviv: remove swizzle from format table

The only format that needs swizzle is R8 emulated with L8, so we can get
rid of the SWIZ(X, Y, Z, W) everywhere.

Note: R8G8 also had a swizzle, but it wasn't necessary.

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

etnaviv: disable integer vertex formats on pre-HALTI2 hardware

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

etnaviv: update INT_FILTER choice for GLES3 formats

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

etnaviv: set output mode and saturate bits

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

etnaviv: sRGB render target support

Note: no srgb render target support before HALTI3

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

etnaviv: remove sRGB formats from format table

This supports all sRGB formats, without having them in the format table.

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

gallium/swr: Fix arb_transform_feedback2

Added support for pause/resume transform feedback.
Fixed DrawTransformFeedback.

Reviewed-by: Jan Zielinski <jan.zielinski@intel.com>
Reviewed-by: Krzysztof Raszkowski <krzysztof.raszkowski@intel.com>

radv: handle unaligned vertex fetches on GFX6/GFX10

The Vulkan spec doesn't have any words for vertex attributes alignment.

Fixes a test failure on GFX6 and a GPU hang on GFX10 with:
dEQP-VK.spirv_assembly.instruction.spirv1p4.entrypoint.tess_con_pc_entry_point

vkpipeline-db results on GFX10:
Totals from affected shaders:
SGPRS: 463772 -> 472972 (1.98 %)
VGPRS: 343208 -> 343752 (0.16 %)
Spilled SGPRs: 323 -> 336 (4.02 %)
Spilled VGPRs: 0 -> 0 (0.00 %)
Code Size: 13806200 -> 14164472 (2.60 %) bytes
Max Waves: 84021 -> 83755 (-0.32 %)

Closes: https://gitlab.freedesktop.org/mesa/mesa/issues/2161
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

i965/iris: perf-queries: don't invalidate/flush 3d pipeline

Our current implementation of performance queries is fairly harsh
because it completely flushes and invalidates the 3d pipeline caches
at the beginning and end of each query. An argument can be made that
this is how performance should be measured but it probably doesn't
reflect what the application is actually doing and the actual cost of
draw calls.

A more appropriate approach is to just stall the pipeline at
scoreboard, so that we measure the effect of a draw call without
having the pipeline in a completely pristine state for every draw
call.

v2: Use end of pipe PIPE_CONTROL instruction for Iris (Ken)

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

intel/perf: drop batchbuffer flushing at query begin

This was initially intended to fix issues with the query timings going
occassionally high.

It turns out there was a bug in the attribution of OA reports to our
context when parsing the OA data. This led to reports flagged with
other context IDs to be included in our queries results.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

v3d: actually root the first BO in a command list in the job

We were passing cl->bo, which is NULL, so v3d_job_add_bo was a no-op.

Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Eric Anholt <eric@anholt.net>

etnaviv: drop compiled_rs_state forward declaration

Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>

etnaviv: remove not used etna_bits_ones(..)

Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>

swr: Fix build with llvm-10.0.

Fix build error after llvm-10.0 commit ("1b2842bf902a [Alignment][NFC]
CreateMemSet use MaybeAlign").

../src/gallium/drivers/swr/swr_shader.cpp: In member function ‘void (* BuilderSWR::CompileGS(swr_context*, swr_jit_gs_key&))(HANDLE, HANDLE, SWR_GS_CONTEXT*)’:
../src/gallium/drivers/swr/swr_shader.cpp:738:65: error: no matching function for call to ‘BuilderSWR::MEMSET(llvm::Value*&, llvm::Constant*, int, long unsigned int)’
       MEMSET(pStream, C((char)0), VERTEX_COUNT_SIZE + CONTROL_HEADER_SIZE, sizeof(float) * KNOB_SIMD_WIDTH);
                                                                 ^
In file included from ../src/gallium/drivers/swr/rasterizer/jitter/builder.h:163:0,
                 from ../src/gallium/drivers/swr/swr_shader.cpp:43:
src/gallium/drivers/swr/rasterizer/jitter/gen_builder.hpp:51:11: note: candidate: llvm::CallInst* SwrJit::Builder::MEMSET(llvm::Value*, llvm::Value*, uint64_t, llvm::MaybeAlign, bool, llvm::MDNode*, llvm::MDNode*, llvm::MDNode*)
 CallInst* MEMSET(Value *Ptr, Value *Val, uint64_t Size, MaybeAlign Align, bool isVolatile = false, MDNode *TBAATag = nullptr, MDNode *ScopeTag = nullptr, MDNode *NoAliasTag = nullptr)
           ^
src/gallium/drivers/swr/rasterizer/jitter/gen_builder.hpp:51:11: note:   no known conversion for argument 4 from ‘long unsigned int’ to ‘llvm::MaybeAlign’
In file included from ../src/gallium/drivers/swr/rasterizer/jitter/builder.h:163:0,
                 from ../src/gallium/drivers/swr/swr_shader.cpp:43:
src/gallium/drivers/swr/rasterizer/jitter/gen_builder.hpp:56:11: note: candidate: llvm::CallInst* SwrJit::Builder::MEMSET(llvm::Value*, llvm::Value*, llvm::Value*, llvm::MaybeAlign, bool, llvm::MDNode*, llvm::MDNode*, llvm::MDNode*)
 CallInst* MEMSET(Value *Ptr, Value *Val, Value *Size, MaybeAlign Align, bool isVolatile = false, MDNode *TBAATag = nullptr, MDNode *ScopeTag = nullptr, MDNode *NoAliasTag = nullptr)
           ^
src/gallium/drivers/swr/rasterizer/jitter/gen_builder.hpp:56:11: note:   no known conversion for argument 4 from ‘long unsigned int’ to ‘llvm::MaybeAlign’

Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Jan Zielinski <jan.zielinski@intel.com>

turnip: implement subpass input attachments

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Eric Anholt <eric@anholt.net>

turnip: CmdClearAttachments fixes

Partial depth/stencil clear and skipping unused attachments.

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Eric Anholt <eric@anholt.net>

turnip: subpass rework

A renderpass is a tile load/store cycle.

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Eric Anholt <eric@anholt.net>

turnip: add dirty bit for push constants

Fixes push constants not updating in some cases.

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Eric Anholt <eric@anholt.net>

turnip: no 8x msaa on 128bpp formats

We don't have an entry for cpp 128 in the tile_alignment table, but I don't
think the HW supports this at all (blob driver just doesn't have 8x msaa).

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Eric Anholt <eric@anholt.net>

turnip: fix VK_IMAGE_ASPECT_STENCIL_BIT image view

Use a special format which allows sampling the stencil and set the correct
swizzle.

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Eric Anholt <eric@anholt.net>

turnip: set FRAG_WRITES_SAMPMASK bit

GPU hangs if SAMPMASK_REGID is used without this bit.

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Eric Anholt <eric@anholt.net>

turnip: set load_layer_id to zero

We don't have layered rendering and ir3 doesn't support this intrinsic, so
just set it to zero for now.

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Eric Anholt <eric@anholt.net>

turnip: update tile_align_w/tile_align_h

It looks like the actual tile alignment requirement is less than 32x32, but
in some cases input attachment texture needs 64 alignment.

Reduced the h alignment to 16 to compensate and it seems to work fine.

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Eric Anholt <eric@anholt.net>

turnip: fix tile layout logic

Use DIV_ROUND_UP and stop trying to increase the tile_count width/height
once tile_align_w/tile_align_h are reached.

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Eric Anholt <eric@anholt.net>

turnip: fix hw binning render area

Fix a mistake in the y2 coordinate.

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Eric Anholt <eric@anholt.net>

freedreno/registers: add a6xx texture format for stencil sampler

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Eric Anholt <eric@anholt.net>

freedreno/ir3: add GLSL_SAMPLER_DIM_SUBPASS to tex_info

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Eric Anholt <eric@anholt.net>

turnip: fix incorrectly failing assert

pColorBlendState is allowed to be NULL if subpass has >0 color attachments
but they are all unused.

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Eric Anholt <eric@anholt.net>

panfrost: Query core count and thread tls alloc

This is supported only on newer kernels.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

panfrost: Factor out panfrost_query_raw

We would like to query properties other than product ID.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

st/glsl_to_nir: use nir based program resource list builder

Here we use the NIR based builder to add everything to the resource
list execpt for SSO packed varyings. Since the details of those
varyings get lost during packing we leave the special handing to
the GLSL IR pass for now. In order to do this we add some bools
to the build resource list functions.

Using the NIR based resource list builder gets us a step closer to
using a native NIR based linker. It should also be faster than the
GLSL IR builder, one because the NIR optimisations should mean we
add less entries due to better optimisations, and two because nir
gives us better lists to work with and we don't need to walk the
entire IR to find the resources.

Ack-by: Alejandro Piñeiro <apinheiro@igalia.com>

st/glsl_to_nir: call gl_nir_lower_buffers() a little later

In a following commit we will use a NIR based builder to build the
OpenGL resource list, so we want to delay this call a little.

Ack-by: Alejandro Piñeiro <apinheiro@igalia.com>

glsl: add subroutine support to nir_build_program_resource_list()

This is required so we can use the NIR linker to link GLSL in
addition to spirv.

Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>

glsl: add support for named varyings in nir_build_program_resource_list()

This adds support for adding names of varying to the resource list
which is required for us to use this function with the glsl linker.
Support for names is optional for spirv which is why it had not been
added yet.

This is mostly a copy of the GLSL IR code adapted to nir.

Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>

glsl: copy the new data fields when converting to nir

These fields added in the previous commit will be used to make use
of a NIR based GLSL linker.

Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>

nir: add some fields to nir_variable_data

These will be used to provide NIR linking functionality to GLSL.

Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>

glsl: copy the how_declared field when converting to nir

This is needed to make use of nir_build_program_resource_list().

Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>

glsl: move nir_remap_dual_slot_attributes() call out of glsl_to_nir()

In order to be able to implement a NIR based glsl linker we need to
build the program resource list with NIR. This change delays the
remaping so that a later commit can call the NIR based resource
list builder.

Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>

docs: Update release notes, index, and calendar for 19.3.0

docs/19.3.0: Add SHA256 sums

docs: add release notes for 19.3.0

i965: Enable GL_EXT_gpu_shader4 on Gen6+

It's already enabled for all gallium drivers that support GLSL 1.40 or
above and we already support everything in our compiler on SNB+

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

radv: enable SpvCapabilityImageMSArray

The Vulkan spec says that StorageImageMultisample and ImageMSArray
SPIRV-V capabilities must be enabled if the
shaderStorageImageMultisample feature is supported.

This fixes a warning with RenderDoc.

Closes: https://gitlab.freedesktop.org/mesa/mesa/issues/2212
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

panfrost: Add routines to calculate stack size/shift

These implement the aforementioned formulas.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

panfrost: Split stack_shift nibble from unk0

It's conceptually independent from the upper part (which is not yet
understood, but for spilling generally remains equal to 0x1e).

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

panfrost: Rename unknown_address_0 -> scratchpad

It's the analogue pointer in SFBD.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

panfrost: Describe thread local storage sizing rules

Deeply nested powers-of-two, basically :-)

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

pan/midgard: Fix shift for TLS access

Due to this issue we were using 4x the memory we should have for TLS,
which was messing up the size calculations. Oops!

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

pan/midgard: Simplify and fix vector copyprop

Fixes a regression in QuakeSpasm. See
https://gitlab.freedesktop.org/mesa/mesa/issues/2169 for apitrace.

Closes #2169

Fixes: f72873e6aa0 ("pan/midgard: Copypropagate vector creation")
Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reported-by: Icecream95

pan/midgard: Don't try to free NULL in LCRA

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Fixes: 12e393bacf0 ("panfrost: add lcra_free() to free lcra state")

pan/midgard: Force alignment for csel_v

The swizzle on the conditional gets lost.

Fixes "horizontal mirroring" in godot. See
https://gitlab.freedesktop.org/mesa/mesa/issues/2108 which has attached
apitrace.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Fixes: d3b3daa9d3f ("pan/midgard: Use new scheduler")
Reported-by: Icecream95

pan/midgard: Don't use no_spill for memory spill src

I'm not totally sure why this would *break* things, but it's certainly
not necessary and it does break things. Somehow this gives the RA more
freedom, fixing some spill issues.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

pan/midgard: Use no_spill bitmask

We would like no_spill decisions to be class-specific -- spilling from
special register to a work register doesn't preclude also spilling that
work register to stack.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

pan/midgard: Dynamically allocate r26/27 for spills

This allows us to spill two 128-bit values in the same bundle, since we
have two registers we can spill with. This improves the
register allocation flexibility in programs with heavy spilling, though
unfortunately it isn't sufficient (theoretically, 3.5 128-bit values can
be spilled from 3 vector units and 2 scalar units).

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

pan/midgard: Remove code marked "TODO: remove me"

It's a fossil, how cute :-)

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

pan/midgard: Remove consecutive_skip code

This has been unused since the beginning since it's broken. Let's toss
it so it doesn't get in the way of further fixes. Bigger to fish to fry.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

pan/midgard: Move bounds checking into LCRA

This simplifies the cost calculation code a bit.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

pan/midgard: Remove spill cost heuristic

We do need some sort of a cost heuristic, but this one is just causing
spilling to behave worse on shaders I'm looking at, and I don't need
more noise in the spill implementation right now.

Get it working first. We can optimize this later.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

pan/midgard: Simplify spillability test

Let's not worry about spilling twice in a bundle; that's too
restrictive. We'll need to change the schedule itself -- unfortunately,
this can have second-order effects due to pipeline registers.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

pan/midgard: Split spill node selection/spilling

Instead of having a giant function for both, split into the two
subtasks so we can handle errors better.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

pan/midgard: Move spilling code out of scheduler

We move it to the register allocator itself. It doesn't belong in
midgard_schedule.c!

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

st/mesa: Don't access members of NULL pointers

Should be harmless, but UBSAN complains about it and fills the logs with
noise.

../src/mesa/state_tracker/st_manager.c:523:27: runtime error: member access within null pointer of type 'struct st_framebuffer'"}
    #0 0xaad4e89c in st_framebuffer_reference ../src/mesa/state_tracker/st_manager.c:523"}
    #1 0xaad4e89c in st_api_make_current ../src/mesa/state_tracker/st_manager.c:1091"}
    #2 0xaab69e0e in dri_make_current ../src/gallium/state_trackers/dri/dri_context.c:301"}
    #3 0xaab48fd2 in driBindContext ../src/mesa/drivers/dri/common/dri_util.c:581"}
    #4 0xb682a122 in dri2_make_current ../src/egl/drivers/dri2/egl_dri2.c:1625"}
    #5 0xb67f95a4 in eglMakeCurrent ../src/egl/main/eglapi.c:884"}
    #6 0x4c2b0e in tcu::surfaceless::EglRenderContext::EglRenderContext(glu::RenderConfig const&, tcu::CommandLine const&) (/deqp/modules/gles2/deqp-gles2+0x29b0e)"}
    #7 0x4c3302 in tcu::surfaceless::ContextFactory::createContext(glu::RenderConfig const&, tcu::CommandLine const&, glu::RenderContext const*) const (/deqp/modules/gles2/deqp-gles2+0x2a302)"}
    #8 0x73a9b0 in glu::createRenderContext(tcu::Platform&, tcu::CommandLine const&, glu::RenderConfig const&, glu::RenderContext const*) (/deqp/modules/gles2/deqp-gles2+0x2a19b0)"}
    #9 0x73ad86 in glu::createDefaultRenderContext(tcu::Platform&, tcu::CommandLine const&, glu::ApiType) (/deqp/modules/gles2/deqp-gles2+0x2a1d86)"}
    #10 0x4c6a78 in deqp::gles2::Context::Context(tcu::TestContext&) (/deqp/modules/gles2/deqp-gles2+0x2da78)"}
    #11 0x4c3ba0 in deqp::gles2::TestPackage::init() (/deqp/modules/gles2/deqp-gles2+0x2aba0)"}
    #12 0x852fd8 in tcu::TestHierarchyIterator::next() (/deqp/modules/gles2/deqp-gles2+0x3b9fd8)"}
    #13 0x829660 in tcu::TestSessionExecutor::iterate() (/deqp/modules/gles2/deqp-gles2+0x390660)"}
    #14 0x810aac in tcu::App::iterate() (/deqp/modules/gles2/deqp-gles2+0x377aac)"}
    #15 0x4c1d4c in main (/deqp/modules/gles2/deqp-gles2+0x28d4c)"}
    #16 0xb64b6aa8 in __libc_start_main (/lib/arm-linux-gnueabihf/libc.so.6+0x1aaa8)"}

../src/mesa/state_tracker/st_atom.c:115:8: runtime error: member access within null pointer of type 'struct st_program'"}
    #0 0xaae11a58 in check_program_state ../src/mesa/state_tracker/st_atom.c:115"}
    #1 0xaae128f6 in st_validate_state ../src/mesa/state_tracker/st_atom.c:192"}
    #2 0xaadc58c2 in prepare_draw ../src/mesa/state_tracker/st_draw.c:132"}
    #3 0xaadc58c2 in st_draw_vbo ../src/mesa/state_tracker/st_draw.c:184"}
    #4 0xabc4f924 in _mesa_validated_drawrangeelements ../src/mesa/main/draw.c:816"}
    #5 0xabc50240 in _mesa_DrawElements ../src/mesa/main/draw.c:970"}
    #6 0x73ebd2 in glu::CallLogWrapper::glDrawElements(unsigned int, int, unsigned int, void const*) (/deqp/modules/gles2/deqp-gles2+0x2d4bd2)"}
    #7 0x6d86b2 in deqp::gls::FragOpInteractionCase::iterate() (/deqp/modules/gles2/deqp-gles2+0x26e6b2)"}
    #8 0x494d16 in deqp::gles2::TestCaseWrapper::iterate(tcu::TestCase*) (/deqp/modules/gles2/deqp-gles2+0x2ad16)"}
    #9 0x7f9cf2 in tcu::TestSessionExecutor::iterateTestCase(tcu::TestCase*) (/deqp/modules/gles2/deqp-gles2+0x38fcf2)"}
    #10 0x7fa5f0 in tcu::TestSessionExecutor::iterate() (/deqp/modules/gles2/deqp-gles2+0x3905f0)"}
    #11 0x7e1aac in tcu::App::iterate() (/deqp/modules/gles2/deqp-gles2+0x377aac)"}
    #12 0x492d4c in main (/deqp/modules/gles2/deqp-gles2+0x28d4c)"}
    #13 0xb64b9aa8 in __libc_start_main (/lib/arm-linux-gnueabihf/libc.so.6+0x1aaa8)"}

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

panfrost: Don't lose bits!

UBSAN complained that when alpha was 255 and we shifted it 24 positions
to the left, it didn't fit in a signed int. That's because bitwise
operations automatically promote to signed int.

../src/gallium/drivers/panfrost/pan_job.c:1130:64: runtime error: left shift of 255 by 24 places cannot be represented in type 'int'"}
    #0 0xacf953d6 in pan_pack_color ../src/gallium/drivers/panfrost/pan_job.c:1130"}
    #1 0xacf953d6 in panfrost_batch_clear ../src/gallium/drivers/panfrost/pan_job.c:1204"}
    #2 0xaae3226a in st_Clear ../src/mesa/state_tracker/st_cb_clear.c:513"}
    #3 0x4c3d0e in deqp::gles2::TestCaseWrapper::iterate(tcu::TestCase*) (/deqp/modules/gles2/deqp-gles2+0x2ad0e)"}
    #4 0x828cf2 in tcu::TestSessionExecutor::iterateTestCase(tcu::TestCase*) (/deqp/modules/gles2/deqp-gles2+0x38fcf2)"}
    #5 0x8295f0 in tcu::TestSessionExecutor::iterate() (/deqp/modules/gles2/deqp-gles2+0x3905f0)"}
    #6 0x810aac in tcu::App::iterate() (/deqp/modules/gles2/deqp-gles2+0x377aac)"}
    #7 0x4c1d4c in main (/deqp/modules/gles2/deqp-gles2+0x28d4c)"}
    #8 0xb64b6aa8 in __libc_start_main (/lib/arm-linux-gnueabihf/libc.so.6+0x1aaa8)"}

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

util: Don't access members of NULL pointers

Should be harmless, but UBSAN complains about it and fills the logs with
noise.

../src/gallium/auxiliary/util/u_inlines.h:110:8: runtime error: member access within null pointer of type 'struct pipe_surface'"}
    #0 0xaaccf186 in pipe_surface_reference ../src/gallium/auxiliary/util/u_inlines.h:110"}
    #1 0xaaccf186 in util_copy_framebuffer_state ../src/gallium/auxiliary/util/u_framebuffer.c:105"}
    #2 0xaabfb60e in cso_set_framebuffer ../src/gallium/auxiliary/cso_cache/cso_context.c:723"}
    #3 0xaae195ce in st_update_framebuffer_state ../src/mesa/state_tracker/st_atom_framebuffer.c:207"}
    #4 0xaae12316 in st_validate_state ../src/mesa/state_tracker/st_atom.c:261"}
    #5 0xaae31302 in st_Clear ../src/mesa/state_tracker/st_cb_clear.c:438"}
    #6 0x4c3d0e in deqp::gles2::TestCaseWrapper::iterate(tcu::TestCase*) (/deqp/modules/gles2/deqp-gles2+0x2ad0e)"}
    #7 0x828cf2 in tcu::TestSessionExecutor::iterateTestCase(tcu::TestCase*) (/deqp/modules/gles2/deqp-gles2+0x38fcf2)"}
    #8 0x8295f0 in tcu::TestSessionExecutor::iterate() (/deqp/modules/gles2/deqp-gles2+0x3905f0)"}
    #9 0x810aac in tcu::App::iterate() (/deqp/modules/gles2/deqp-gles2+0x377aac)"}
    #10 0x4c1d4c in main (/deqp/modules/gles2/deqp-gles2+0x28d4c)"}
    #11 0xb64b6aa8 in __libc_start_main (/lib/arm-linux-gnueabihf/libc.so.6+0x1aaa8)"}

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

nir: Don't copy empty array

It's undefined behavior UBSAN complains about, so fixing this will
reduce the noise a bit.

../src/compiler/nir/nir_clone.c:710:4: runtime error: null pointer passed as argument 2, which is declared to never be null"}
    #0 0xac781be4 in clone_function ../src/compiler/nir/nir_clone.c:710"}
    #1 0xac781be4 in nir_shader_clone ../src/compiler/nir/nir_clone.c:740"}
    #2 0xacf99442 in panfrost_shader_compile ../src/gallium/drivers/panfrost/pan_assemble.c:54"}
    #3 0xacf6b268 in panfrost_bind_shader_state ../src/gallium/drivers/panfrost/pan_context.c:1960"}
    #4 0xaae326bc in set_fragment_shader ../src/mesa/state_tracker/st_cb_clear.c:135"}
    #5 0xaae326bc in clear_with_quad ../src/mesa/state_tracker/st_cb_clear.c:335"}
    #6 0xaae326bc in st_Clear ../src/mesa/state_tracker/st_cb_clear.c:518"}
    #7 0x494d0e in deqp::gles2::TestCaseWrapper::iterate(tcu::TestCase*) (/deqp/modules/gles2/deqp-gles2+0x2ad0e)"}
    #8 0x7f9cf2 in tcu::TestSessionExecutor::iterateTestCase(tcu::TestCase*) (/deqp/modules/gles2/deqp-gles2+0x38fcf2)"}
    #9 0x7fa5f0 in tcu::TestSessionExecutor::iterate() (/deqp/modules/gles2/deqp-gles2+0x3905f0)"}
    #10 0x7e1aac in tcu::App::iterate() (/deqp/modules/gles2/deqp-gles2+0x377aac)"}
    #11 0x492d4c in main (/deqp/modules/gles2/deqp-gles2+0x28d4c)"}
    #12 0xb64b9aa8 in __libc_start_main (/lib/arm-linux-gnueabihf/libc.so.6+0x1aaa8)"}

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

pan/midgard: Remove undefined behavior

As found by UBSAN, it should be harmless but it's good to remove any UB
so the tool's output is useful.

../src/panfrost/midgard/midgard_schedule.c:1094:9: runtime error: index -1 out of bounds for type 'midgard_instruction *[6]'"}
    #0 0xad047872 in schedule_block ../src/panfrost/midgard/midgard_schedule.c:1094"}
    #1 0xad04d41a in schedule_program ../src/panfrost/midgard/midgard_schedule.c:1116"}
    #2 0xad031f98 in midgard_compile_shader_nir ../src/panfrost/midgard/midgard_compile.c:2588"}
    #3 0xacf9874e in panfrost_shader_compile ../src/gallium/drivers/panfrost/pan_assemble.c:68"}
    #4 0xacf6b268 in panfrost_bind_shader_state ../src/gallium/drivers/panfrost/pan_context.c:1960"}
    #5 0xaae2596e in st_update_fp ../src/mesa/state_tracker/st_atom_shader.c:168"}
    #6 0xaae12316 in st_validate_state ../src/mesa/state_tracker/st_atom.c:261"}
    #7 0xaadc58c2 in prepare_draw ../src/mesa/state_tracker/st_draw.c:132"}
    #8 0xaadc58c2 in st_draw_vbo ../src/mesa/state_tracker/st_draw.c:184"}
    #9 0xabc4f924 in _mesa_validated_drawrangeelements ../src/mesa/main/draw.c:816"}
    #10 0xabc50240 in _mesa_DrawElements ../src/mesa/main/draw.c:970"}
    #11 0x73ebd2 in glu::CallLogWrapper::glDrawElements(unsigned int, int, unsigned int, void const*) (/deqp/modules/gles2/deqp-gles2+0x2d4bd2)"}
    #12 0x6d86b2 in deqp::gls::FragOpInteractionCase::iterate() (/deqp/modules/gles2/deqp-gles2+0x26e6b2)"}
    #13 0x494d16 in deqp::gles2::TestCaseWrapper::iterate(tcu::TestCase*) (/deqp/modules/gles2/deqp-gles2+0x2ad16)"}
    #14 0x7f9cf2 in tcu::TestSessionExecutor::iterateTestCase(tcu::TestCase*) (/deqp/modules/gles2/deqp-gles2+0x38fcf2)"}
    #15 0x7fa5f0 in tcu::TestSessionExecutor::iterate() (/deqp/modules/gles2/deqp-gles2+0x3905f0)"}
    #16 0x7e1aac in tcu::App::iterate() (/deqp/modules/gles2/deqp-gles2+0x377aac)"}
    #17 0x492d4c in main (/deqp/modules/gles2/deqp-gles2+0x28d4c)"}
    #18 0xb64b9aa8 in __libc_start_main (/lib/arm-linux-gnueabihf/libc.so.6+0x1aaa8)"}

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

panfrost: Hold a reference to sampler views

Before we were just copying, but we need to hold a reference as well.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

gallium/swr: Fix Windows build

Tessellator defines own fmin/fmax functions that conflict
with those defined in cmath header. Need to use legacy math.h
which was originally used in MS code.

Reviewed-by: Krzysztof Raszkowski <krzysztof.raszkowski@intel.com>