gallium: set pipe_context uploaders in drivers (v3)

Notes:
- make sure the default size is large enough to handle all state trackers
- pipe wrappers don't receive transfer calls from stream_uploader, because
  pipe_context::stream_uploader points directly to the underlying driver's
  stream_uploader (to keep it simple for now)

v2: add error handling to nv50, nvc0, noop
v3: set const_uploader

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Tested-by: Edmondo Tommasina <edmondo.tommasina@gmail.com> (v1)
Tested-by: Charmaine Lee <charmainel@vmware.com>

gallium/u_upload_mgr: add a helper that creates the default uploader

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Tested-by: Edmondo Tommasina <edmondo.tommasina@gmail.com>
Tested-by: Charmaine Lee <charmainel@vmware.com>

gallium: add common uploaders into pipe_context (v2)

For lower memory usage and more efficient updates of the buffer residency
list. (e.g. if drivers keep seeing the same buffer for many consecutive
"add" calls, the calls can be turned into no-ops trivially)

v2: add const_uploader, add documentation

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Tested-by: Edmondo Tommasina <edmondo.tommasina@gmail.com>
Tested-by: Charmaine Lee <charmainel@vmware.com>

radv: fixup IA_MULTI_VGT_PARAM handling.

This ports the remains of the workarounds from radeonsi for
the non-TESS cases. It should provide equivalent workarounds
for hawaii and bonarie.

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Dave Airlie <airlied@redhat.com>

radv: fix warning since using common gs emit code

Signed-off-by: Dave Airlie <airlied@redhat.com>

radv: adopt some init config workarounds from radeonsi.

Just one bonaire fix.

Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Cc: "13.0 17.0" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

radv: re-enable init gfx state on CIK.

Once the color alignment was fixed this works fine now.

Tested-by: Kai Wasserbäch <kai@dev.carbon-project.org>
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Dave Airlie <airlied@redhat.com>

radv: align the initial state command buffer.

This just adds the padding to align this to an 8 dword boundary.

Tested-by: Kai Wasserbäch <kai@dev.carbon-project.org>
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Dave Airlie <airlied@redhat.com>

radv: fix cik macroModeIndex.

This just a CIK fix ported from radeonsi.

Tested-by: Kai Wasserbäch <kai@dev.carbon-project.org>
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Cc: "13.0 17.0" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

radv: change base aligmment for allocated memory.

On some CIK (Hawaii) this needs to be at least 64k, I'm not 100% sure
it doesn't need to be 128k.

This was causing fast clear eliminate to overwrite the previous buffer,
which since my gfx init code, was the indirect buffer.

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=99692
Tested-by: Kai Wasserbäch <kai@dev.carbon-project.org>
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Cc: "13.0 17.0" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

anv: Add support for shaderStorageImageWriteWithoutFormat

This allows shaders to write to storage images declared with unknown
format if they are decorated with NonReadable ("writeonly" in GLSL).

Previously an image view would always use a lowered format for its
surface state, however when a shader declares a write-only image, we
should use the real format. Since we don't know at view creation time
whether it will be used with only write-only images in shaders, create
two surface states using both the original format and the lowered
format. When emitting the binding table, choose between the states
based on whether the image is declared write-only in the shader.

Tested on both Sascha Willems' computeshader sample (with the original
shaders and ones modified to declare images writeonly and omit their
format qualifiers) and on our own shaders for which we need support
for this.

Signed-off-by: Alex Smith <asmith@feralinteractive.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

spirv: Add support for SpvCapabilityStorageImageWriteWithoutFormat

Allow that capability if the driver indicates that it is supported, and
flag whether images are read-only/write-only in the nir_variable (based
on the NonReadable and NonWritable decorations), which drivers may need
to implement this.

Signed-off-by: Alex Smith <asmith@feralinteractive.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>

nir/spirv: do not require a format with images that are not sampled

As soon as we support shaderStorageImageWriteWithoutFormat we can see
write-only images (sampled == 2) that don't have a format specified.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

anv/apply_pipeline_layout: Set image.write_only to false

This makes our driver robust to changes in spirv_to_nir which would set
this flag on the variable.  Right now, our driver relies on spirv_to_nir
*not* setting var->data.image.write_only for correctness.  Any patch
which implements the shaderStorageImageWriteWithoutFormat will need to
effectively revert this commit.

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

intel/isl: Add format metadata for typed reads/writes

This adds two columns to the format table as well as two helpers for
determining whether or not a given format is supported for typed reads
and writes.

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

anv/cmd_buffer: Return a VkResult from verify_cmd_parser

This fixes a "statement with no effect" compiler warning

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

nvc0: disable linked tsc mode in compute launch descriptor

Empirically, this makes things work. Presumably this was originally
copied from the blob, which does make use of linked tsc mode.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99532
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Cc: mesa-stable@lists.freedesktop.org

mesa: Add EXT_frag_depth bits and enable it on all drivers

Passes the newly added piglit test for this extension on i965.

V2: Fix comments by Ilia.

Signed-off-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

radeonsi: use common sendmsg emission function.

This just ports radeonsi to use the sendmsg common code.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Dave Airlie <airlied@redhat.com>

radv/ac: use sendmsg emission interface.

This uses the common code to emit the correct intrinsic.

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Dave Airlie <airlied@redhat.com>

radeon/ac/llvm: add support for sendmsg emission

This lets us use the new intrinsic on the correct
version of llvm.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Dave Airlie <airlied@redhat.com>

radv: disable gfx init on CIK for now

Luzipher on irc report this hangs his Hawaii, disable for now
until I get time to debug.

Signed-off-by: Dave Airlie <airlied@redhat.com>

tgsi: fix memory leak in tgsi sanity check

This just fixes this without repeating the code.

Reported-by: Li Qiang
Cc: "17.0" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

radv/ac: use common interp code for new intrinsics

This uses the common fs interp code to use the new
llvm intrinsics so llvm can drop the old ones.

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Dave Airlie <airlied@redhat.com>

radv: use indirect buffer for initial gfx state.

This puts the common gfx state for the device into an
indirect buffer, and just calls out to it, on CIK and above.

This is taken from what radeonsi does.

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Dave Airlie <airlied@redhat.com>

radv: start splitting init config up

This is just prep work for the following patch to use
a common gfx init indirect buffer.

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Dave Airlie <airlied@redhat.com>

radv: don't pass physical device to si_init_ fns.

This is just a trivial cleanup.

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Dave Airlie <airlied@redhat.com>

radv: detect command buffers that do no work and drop them (v2)

If a buffer is just full of flushes we flush things on command
buffer submission, so don't bother submitting these.

This will reduce some CPU overhead on dota2, which submits a fair
few command streams that don't end up drawing anything.

v2: reorganise loop to count first then malloc,
rename some vars (Bas)

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Dave Airlie <airlied@redhat.com>

anv/blorp: Don't sanitize the swizzle for blorp_clear

BLORP is now smart enough to handle any swizzle (even those that contain
ZERO or ONE) in a reasonable manner.  Just let BLORP handle it.  This
fixes the following Vulkan CTS tests on Haswell:

 - dEQP-VK.api.image_clearing.clear_color_image.1d_b4g4r4a4_unorm_pack16
 - dEQP-VK.api.image_clearing.clear_color_image.2d_b4g4r4a4_unorm_pack16
 - dEQP-VK.api.image_clearing.clear_color_image.3d_b4g4r4a4_unorm_pack16

Reviewed-by: Juan A. Suarez Romero <jasuarez@igalia.com>
Cc: "17.0" <mesa-stable@lists.freedesktop.org>

intel/blorp: Swizzle clear colors on the CPU

It's trivial to swizzle clear colors on the CPU, easily deals with the
hardware restrictions for render target swizzles, and makes swizzled
clears work on all hardware as opposed to just HSW+.

Reviewed-by: Juan A. Suarez Romero <jasuarez@igalia.com>
Cc: "17.0" <mesa-stable@lists.freedesktop.org>

docs: add news item and link release notes for 17.0.0

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>

docs: add sha256 checksums for 17.0.0

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
(cherry picked from commit 80b41d9899f37e58b197f55897115d2cb6e13af9)

docs: Update 17.0.0 release notes

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
(cherry picked from commit 683462e680326ee0cd7a794f018178b7b5573c4f)

st/xlib: remove always true ifdef GLX_EXTENSION guards

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Acked-by: Matt Turner <mattst88@gmail.com>

xlib: remove always true ifdef GLX_EXTENSION guards

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Acked-by: Matt Turner <mattst88@gmail.com>

glx: remove always true XDAMAGE_1_1_INTERFACE guard

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

scons: check for libXdamage 1.1 or later

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

configure.ac: check for libXdamage 1.1 or later

Released back in 2007 so it should not be an issue for anyone building
from git.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

glx: remove DRI2DriverPrimeShift compile guards

DRI2DriverPrimeShift was added in dri2proto-2.8, which we now require
as of the previous commit.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

vl: remove DRI2DriverPrimeShift compile guards

DRI2DriverPrimeShift was added in dri2proto-2.8, which we now require as
of the previous commit.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

scons: add missing dri2proto requirement

Noticed while skimming through, although admittedly there's many other
dependencies that are not tracked by the scons build.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

configure.ac: dump dri2proto requirement to 2.8

dri2proto 2.8 was released 4+ years ago, so it must be of no surprise
for anyone building mesa from git.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

glx: remove always true ifdef guards

The two symbols referenced were introduced with v2.2 and 2.3 of
the dri2proto package and we require dri2proto >= 2.6.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

winsys/intel: remove unused winsys - ilo was its only user

Cc: Edward O'Callaghan <funfunctor@folklore1984.net>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>

configure.ac: do not use deprecated macros - AC_HELP_STRING AC_ERROR

Replace with AS_HELP_STRING and AC_MSG_ERROR respectively, as spotted by
autoupdate.

Note that the suggested AC_CANONICAL_SYSTEM > AC_CANONICAL_TARGET change
is not addressed here since that requires very extensive testing.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>

util/disk_cache: correctly use stat(3)

I forgot to error check stat() and also I wasn't using the subdir in
is_two_character_sub_directory().

Fixes: d7b3707c612 "util/disk_cache: use stat() to check if entry is a directory"
Reviewed-by: Plamena Manolova <plamena.manolova@intel.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

configure.ac: Drop LLVM compiler flags more radically

Drop all -m*, -W*, -O*, -g* and -f* flags, with the exception of
-fno-rtti, which must be used if it's part of the llvm-config --cxxflags
output. We don't want LLVM to dictate the flags we use, and it can even
cause build failures, e.g. if LLVM and Mesa are built with different
compilers.

While we're at it, eat any whitespace preceding dropped flags as well.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

glsl: Drop resize-to-MaxPatchVertices hack.

TCS and TES inputs without an array size are implicitly sized to
gl_MaxPatchVertices.  But TCS outputs are apparently not:

   "If no size is specified, it will be taken from the output patch size
    (gl_VerticesOut) declared in the shader."

Fixes dEQP-GLES31.functional.program_interface_query.program_output.
array_size.separable_tess_ctrl.var.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>

mesa: Ignore per-vertex array size in SSO pipeline validation.

We were already unwrapping types when the producer was a non-array
stage and the consumer was an arrayed-stage...but we ought to unwrap
both ends for TCS -> TES matching too.

This will allow us to drop the "resize to gl_MaxPatchVertices" check
shortly, which breaks some things.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>

glsl: Update a comment about link errors for TCS && !TES.

OpenGL ES actually has spec text to prohibit this.  It's just OpenGL
that's confusing.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>

mesa: Do a draw time check for TES && !TCS in ES 3.x.

ES 3.x requires both TCS and TES to be present.  We already checked
the TCS && !TES case above, so we just have to check !TCS && TES here.

Note that this is allowed in OpenGL, just not ES.

This fixes a subcase of:
dEQP-GLES31.functional.debug.negative_coverage.*.tessellation.single_tessellation_stage

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>

mesa: Do (TCS && !TES) draw time validation in ES as well.

Now that we have OES_tessellation_shader, the same situation can occur
in ES too, not just GL core profile.

Having a TCS but no TES may confuse drivers - i965 crashes, for example.

This prevents regressions in
ES31-CTS.core.tessellation_shader.single.xfb_captures_data_from_correct_stage
with some SSO pipeline validation changes I'm making.

v2: Add an ES spec citation (suggested by Alejandro)

Cc: "17.0" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>

i965/sampler_state: Set the "Base Mip Level" field on Sandy Bridge

Fixes two GL ES 3.0 CTS tests on Sandy Bridge:

ES3-CTS.functional.texture.mipmap.cube.base_level.linear_linear
ES3-CTS.functional.texture.mipmap.cube.base_level.linear_nearest

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "17.0 13.0" <mesa-stable@lists.freedesktop.org>

i965/sampler_state: Pass texObj into update_sampler_state

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "17.0 13.0" <mesa-stable@lists.freedesktop.org>

i965/sampler_state: Clamp min/max LOD to 14 on gen7+

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "17.0" <mesa-stable@lists.freedesktop.org>

st/mesa: don't pass compare mode for stencil-sampled textures

Fixes dEQP-GLES31.functional.stencil_texturing.misc.compare_mode_effect

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Cc: mesa-stable@lists.freedesktop.org

nv50,nvc0: use alternate samplers for stencil

The blob uses these, and it fixes a bunch of dEQP stencil sampling tests
involving border colors. Probably the Z-based samplers work somehow
differently wrt border colors when using the stencil swizzle.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>

radv: Fix radv_GetPhysicalDeviceQueueFamilyProperties2KHR.

The struct have different size, so the arrays have different stride.

Signed-off-by: Bas Nieuwenhuizen <basni@google.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>

etnaviv: Set shader instruction area correctly for GC3000

- Use the same instruction area on GC3000 as the Vivante driver.
  This allows the same number of instructions on GC3000 as GC2000
  instead of half.

- Makes sure that the "PE to FE" stall before updating the shader code
  or constants is hit (which is conditional on vs_offset > 0x4000). This
  is necessary on GC3000 too, it increases stability.

Signed-off-by: Wladimir J. van der Laan <laanwj@gmail.com>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

etnaviv: Update hw header files

Update from etnaviv repository rnndb. This adds some newly
discovered state for GC3000 (and some GC2000) features.

Signed-off-by: Wladimir J. van der Laan <laanwj@gmail.com>
Acked-by: Christian Gmeiner <christian.gmeiner@gmail.com>

radv: reduce CPU overhead merging bo lists.

Just noticed we do a fair bit of unneeded searching here.

Since we know that the buffers in a CS are unique already,
the first time we get any buffers, we can just memcpy those into
place, and when we are searching for subsequent CSes, we only
have to search up until where the previous unique buffers were.

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Dave Airlie <airlied@redhat.com>

nvc0: set the render condition in the compute object

Fixes GL45-CTS.compute_shader.conditional-dispatching

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: mesa-stable@lists.freedesktop.org

gm107/ir: fix address offset bitfield for ATOMS

Fixes GL45-CTS.compute_shader.atomic-case1 on Maxwell

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: mesa-stable@lists.freedesktop.org

nv50/ir: convert an ATOM.EXCH without a destination into a store

On SM35 there does not appear to be a way to emit a ATOM.EXCH with a
null destination. This should be functionally equivalent to a plain
store however, so just do that.

Fixes GL45-CTS.compute_shader.atomic-case2 on SM35.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0: fix 64-bit integer query buffer writes

The former logic just plain didn't work at all. We need to write the
subsequent dword to the next buffer location.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>

nv50/ir: return a register when retrieving thread id sysval

We have logic to short-circuit such retrievals to zero. However "zero"
was an immediate, and some logic expected to get registers (to later be
propagated). Fix this by using loadImm.

Fixes GL45-CTS.gpu_shader5.images_array_indexing

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>

nv50/ir: add missing break after DSSG

Recently broken during int64 addition.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>

etnaviv: shader-db traces

Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-By: Wladimir J. van der Laan <laanwj@gmail.com>

etnaviv: keep track of emitted loops

Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Wladimir J. van der Laan <laanwj@gmail.com>

etnaviv: wire up core pipe_debug_callback

Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>

glsl: non-last member unsized array on SSBO must fail compilation on GLSL ES 3.1

From GLSL ES 3.10 spec, section 4.1.9 "Arrays":

"If an array is declared as the last member of a shader storage block
 and the size is not specified at compile-time, it is sized at run-time.
 In all other cases, arrays are sized only at compile-time."

In desktop GLSL it is allowed to have unsized-arrays that are
not last, as long as we can determine that they are implicitly
sized, which is detected at link-time.

With this patch Mesa reports a compilation error as glslang does with
the following shader:

buffer SSBO { vec4 data[]; vec4 moreData;};
void main (void)
{
}

Fixes:
dEQP-GLES31.functional.debug.negative_coverage.log.shader.compile_compute_shader
dEQP-GLES31.functional.debug.negative_coverage.callbacks.shader.compile_compute_shader
dEQP-GLES31.functional.debug.negative_coverage.get_error.shader.compile_compute_shader

Cc: "17.0" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

vc4: Enable glSampleMask() even when !rasterizer->multisample.

gallium's blitter expects that it can set the sample mask even when the
rasterizer doesn't have the flag on.

Between this and the previous test, 10 new ext_framebuffer_multisample
tests start passing.

vc4: Respect glSampleMask() even when we're not writing color.

gallium's quad-based blitter for copying MSAA depth textures expects to be
able to do 4 passes updating a sample at a time using glSampleMask, and
there's no color buffer bound when it's doing that.

vc4: Use the nir_builder helper for loading sample mask.

vc4: Use accurate 1/w in coordinate shader as well as vert shader.

We probably shouldn't be emitting different scaled viewport coordinates
between vertex and coord.

vc4: Drop VS inputs to 8.

In the hardware we only get to declare 8 vertex elements (GLES2's
minimum), so we should be exposing that number here.  Fixes an assertion
failure in piglit texrect-many, at the expense of various GL 2.0-ish
minmax tests now complaining that our count is too low.

vc4: Avoid emitting small immediates for UBO indirect load address guards.

The kernel will reject our shader if we emit one here, and having 4, 8, or
12 as the top end of our UBO clamp rare is enough that it's not worth
making the kernel let us.

Fixes piglit fs-const-array-of-struct and
fs-const-array-of-struct-of-array since recent GLSL linking changes made
us get this as an indirect load of a uniform, instead of a tempoary.

Cc: "13.0 17.0" <mesa-stable@lists.freedesktop.org>

util/disk_cache: use stat() to check if entry is a directory

d_type is not supported on all systems.

Tested-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97967

st/nine: update configure options in the README

Cc: Axel Davy <axel.davy@ens.fr>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>

configure.ac: supersede --enable-gallium-llvm over --enable-llvm

Currently we have extra (somewhat questionable) modularity, such that
one could build some parts with LLVM while others w/o.

That is extremely fragile, error prone and requires quite noticable
amount of code throughout.

Thus lets deprecate the gallium toggle in faviour of the generic one.
The former will throw a warning when set, and it will be overwritten by
the latter. This will allow gradual transition w/o breaking people's
scripts.

v2: Rebase, document in release notes.

Cc: Dave Airlie <airlied@redhat.com>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Tobias Droste <tdroste@gmx.de> (v1)

configure.ac: remove dummy radeon_gallium_llvm_check()

The extra function brings no added benefit as of earlier commit which
made llvm_require_version (as called by radeon_llvm_check) require LLVM
(--enable-gallium-llvm).

Fixes: 5f966a96af7 "configure.ac: Mandate --enable-gallium-llvm when
checking LLVM version"
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Tobias Droste <tdroste@gmx.de>

configure.ac: correctly manage llvm auto-detection

Earlier refactoring commits changed from one, dare I say it, broken
behaviour to another. Namely:

Before, as you explicitly --enable-gallium-llvm your selection was
ignored when llvm-config was not present/detected.
Today, the "auto" heuristics enables gallium llvm regardless if you have
llvm/llvm-config available or not.

Rework the auto-detection to attribute for llvm's presence.

v2: Set enable_gallium_llvm=no when LLVM is not found.

Cc: "17.0" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Tobias Droste <tdroste@gmx.de>
Reported-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Tested-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>

configure.ac: disable enable_gallium_llvm in the !x86 case

Already implicitly handled throughout, but keep it clear and disable
gallium-llvm. This change should be a no-op.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Tobias Droste <tdroste@gmx.de>

configure.ac: set LLVM_{C, CXX, LD}FLAGS only as needed

Earlier refactoring commits started setting the above regardless if LLVM
is used or not. Move them to the respective section to restore the
original functionality.

Since we require the preprocessor flags (includes in particular) for the
header version parsing keep those as-is. They are not used outside of
configure.ac thus should not cause any side-effects.

As-is adding the C/CXXFLAGS can lead to build issues on when
cross-compiling.

Cc: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: Tomasz Figa <tfiga@chromium.org>
Cc: "17.0" <mesa-stable@lists.freedesktop.org>
Reported-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Tobias Droste <tdroste@gmx.de>

Revert "configure.ac: Create correct LLVM_VERSION_INT with minor >= 10"

As stated in [1] by the LLVM devs, the new versioning scheme will not
deploy any minor version (i.e. it will always be zero). As such the
patch should not be needed.

This reverts commit 0e9a5be7e74fa2a9bd2a634ef60822bd6600ca1d.

[1] http://blog.llvm.org/2016/12/llvms-new-versioning-scheme.html
Reviewed-by: Tobias Droste <tdroste@gmx.de>

configure.ac: don't use == with test

Although it works, it's not the correct thing to do.

v2: Rebase
v3: Rebase

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Tobias Droste <tdroste@gmx.de> (v1)

configure.ac: remove unused LLVM variables

LLVM_BINDIR is completely unused while others such as LLVM_LIBDIR are
used only internally. In the latter case there's no need to AC_SUBST it.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Tobias Droste <tdroste@gmx.de>

configure.ac: Only define HAVE_LLVM if LLVM is used

Make sure that HAVE_LLVM compiler define is only set if LLVM is
actually used.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99010
Cc: "17.0" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Tobias Droste <tdroste@gmx.de>
v2 [Emil] fold within the existing conditional
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

configure.ac: Rework MESA_LLVM and LLVM detection

Set FOUND_LLVM only when LLVM is present (checking for exact version/etc
is deferred) and use enable-gallium-llvm to indicate the global LLVM
status.

Renaming the latter is not appropriate for stable patches, so we'll
address it with a later commit.

Loosely based on work by Tobias.

v2: Check FOUND_LLVM if enable_gallium_llvm is set.

Cc: Dave Airlie <airlied@redhat.com>
Cc: "17.0" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Tobias Droste <tdroste@gmx.de>

configure.ac: move enable-gallium-llvm dependency with-gallium-drivers

... to where it's applicable.

Since we effectively made --enable-gallium-llvm mean --enable-llvm with
earlier commits, we need to move the requirement to guard the compnents
added for the LLVM draw.

Otherwise we'll error (as below) when building RADV w/o gallium drivers.

configure: error: --enable-gallium-llvm is required when building radv

v2: Don't remove but move the dependency (Tobias).

Cc: Dave Airlie <airlied@redhat.com>
Cc: "17.0" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Tobias Droste <tdroste@gmx.de>

configure.ac: Mandate --enable-gallium-llvm when checking LLVM version

With this change we effectively require --enable-gallium-llvm when
building RADV. This should be perfectly safe since the gallium radeonsi
driver already explicitly requires it.

The "gallium" part in --enable-gallium-llvm is about to be removed soon
(not in stable), but until then make sure that things can build.

To reflect the requirement (as opposed to check previously) we rename
llvm_check_version_for to llvm_require_version

Cc: Dave Airlie <airlied@redhat.com>
Cc: "17.0" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Tobias Droste <tdroste@gmx.de>

configure.ac: Rename the  gallium_require_llvm helper

Drop the gallium prefix since we're about it use it throughout the
configure.

Note we do want to check for enable_gallium_llvm check since (as
explicitly requested) the toggle should mean --enable-llvm. Latter of
which to be resolved with later patches.

Cc: Dave Airlie <airlied@redhat.com>
Cc: "17.0" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Tobias Droste <tdroste@gmx.de>

configure.ac: Don't check LLVM version in require_llvm

This is actually not needed because the version is checked later.

Around line 2380
if test "x$enable_gallium_llvm" == "xyes"; then
    llvm_check_version_for $LLVM_REQUIRED_GALLIUM "gallium"
    llvm_add_default_components "gallium"
fi

Cc: "17.0" <mesa-stable@lists.freedesktop.org>
Cc: Tobias Droste <tdroste@gmx.de>
Signed-off-by: Tobias Droste <tdroste@gmx.de>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com> (v1)
v2: [Emil Velikov: rebase/respin series order]
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>

configure.ac: move AC_ARG_ENABLE([gallium-llvm] hunk further up

With next commits we'll require --enable-gallium-llvm (en route to a
greater good later on) for RADV. The latter is required to ensure that
as otherwise we'll fail to build.

Cc: Dave Airlie <airlied@redhat.com>
Cc: "17.0" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Tobias Droste <tdroste@gmx.de>

configure.ac: remove unused AC_SUBST([MESA_LLVM])

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Tobias Droste <tdroste@gmx.de>

loader: unconditionally include unistd.h and stdlib.h

Otherwise we would fail with "implicit declaration of function" geteuid
and getenv respectively.

To trigger (re)move the libdrm.pc file and use the following:

 $ ./autogen.sh --disable-egl --disable-gbm --disable-dri \
    --with-dri-drivers=swrast --with-gallium-drivers=swrast
 $ make

Cc: Vinson Lee <vlee@freedesktop.org>
Fixes: 3f462050c ("loader: Add an environment variable to override driver name choice.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99701
v2: [Emil: handle stdlib.h add commit message]
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>

intel/blorp: do not return const data by get_px_size_sa()

Not much point in the const qualifier since we provide a copy to the
user. Resolves the following -Wignored-qualifiers warning.

src/intel/blorp/blorp_blit.c:1857:8: warning: 'const' type qualifier on
return type has no effect [-Wignored-qualifiers]

v2: keep const qualifier of local variable.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

gallium/radeon: use staging for texture read mappings from GTT WC

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

gallium/radeon: ignore the level parameter in buffer_transfer_map

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

gallium/radeon: fix performance of buffer readbacks

We want cached GTT for all non-persistent read mappings.
Set level = 0 on purpose.

Use dma_copy, because resource_copy_region causes a failure in the PBO
read of piglit/getteximage-luminance.

If Rocket League used the READ flag, it should get cached GTT.

v2: mask out UNSYNCHRONIZED

Cc: 13.0 17.0 <mesa-stable@lists.freedesktop.org>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>