Commit graph

97191 commits

Author SHA1 Message Date
Kenneth Graunke
8ed01c0a57 i965: Implement another VF cache invalidate workaround on Gen8+.
...and provide a better citation for the existing one.

v2:
- Apply the workaround to Gen8 too, as intended (caught by Topi).
- Restructure to add bits instead of an extra flush (based on a similar
  patch by Rafael Antognolli).

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Rafael Antognolli <rafael.antognolli@intel.com>
(cherry picked from commit 8d48671492)
2017-11-17 19:24:29 +00:00
Tim Rowley
957c66de1c swr/rast: Faster emulated simd16 permute
Speed up simd16 frontend (default) on avx/avx2 platforms;
fixes performance regression caused by switch to simdlib.

Reviewed-by: Bruce Cherniak <bruce.cherniak@intel.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit d8489517a5)
2017-11-17 19:24:29 +00:00
Tim Rowley
c798200543 swr/rast: Use gather instruction for i32gather_ps on simd16/avx512
Speed up avx512 platforms; fixes performance regression caused
by swithc to simdlib.

Reviewed-by: Bruce Cherniak <bruce.cherniak@intel.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 439904847e)
2017-11-17 19:24:29 +00:00
Jason Ekstrand
f3caa303cf i965: Add stencil buffers to cache set regardless of stencil texturing
We may access them as a texture using blorp regardless of whether or not
stencil texturing is enabled.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 6830ba0d3b)
2017-11-17 19:24:29 +00:00
Jason Ekstrand
fdd99c97ec i965: Use PTE MOCS for all external buffers
We were already using PTE for all render targets in case one happened to
get scanned out.  However, this still wasn't 100% correct because there
are still possibly cases where we may want to texture from an external
buffer even though we don't know the caching mode.  This can happen, for
instance, on buffers imported from another GPU via prime.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101691
Cc: "17.3" <mesa-stable@lists.freedesktop.org>
Tested-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
(cherry picked from commit d7a19d69eb)
2017-11-17 19:24:29 +00:00
Jason Ekstrand
a9bc277482 intel/blorp: Make the MOCS setting part of blorp_address
This makes our MOCS settings significantly more flexible.

Cc: "17.3" <mesa-stable@lists.freedesktop.org>
Tested-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
(cherry picked from commit bc933d0e84)
2017-11-17 19:24:29 +00:00
Jason Ekstrand
3bcc13539b anv/blorp: Add a device parameter to blorp_surf_for_anv_image
Cc: "17.3" <mesa-stable@lists.freedesktop.org>
Tested-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
(cherry picked from commit deec84fd77)
2017-11-17 19:24:29 +00:00
Jason Ekstrand
9180ce3784 intel/blorp: Use mocs.tex for depth stencil
Cc: "17.3" <mesa-stable@lists.freedesktop.org>
Tested-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
(cherry picked from commit 4639cc716e)
2017-11-17 19:24:29 +00:00
Dave Airlie
adef4109a0 r600: fix isoline tess factor component swapping.
As per radeonsi, the tess factor components for isolines
are reversed.

Fixes: tests/spec/arb_tessellation_shader/execution/isoline.shader_test
Cc: <mesa-stable@lists.freedesktop.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
(cherry picked from commit f3f8615d76)
2017-11-17 19:24:29 +00:00
Dave Airlie
55bc1d0a19 r600/shader: reserve first register of vertex shader.
r0 in input into vertex shaders contains things like vertexid,
we need to reserve it even if we have no inputs.

This fixes a bunch of tessellation piglits.

Cc: <mesa-stable@lists.freedesktop.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
(cherry picked from commit 50330d7115)
2017-11-17 19:24:29 +00:00
Adam Jackson
a240fd6d13 glx/dri3: Fix passing renderType into glXCreateContext
Without this, trying to create a GLX_RGBA_FLOAT_TYPE_ARB context would
fail, because GLX_RGBA_TYPE would be a mismatch with the fbconfig.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
(cherry picked from commit 257edb5b9a)
2017-11-17 19:24:29 +00:00
Adam Jackson
5743c83893 glx/drisw: Fix glXMakeCurrent(dpy, None, ctx)
This is perfectly legal in GL 3.0+.

Fixes piglit/glx-create-context-current-no-framebuffer.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
(cherry picked from commit 033cfb17db)
2017-11-17 19:24:29 +00:00
Alex Smith
c9c818ad5e nir/spirv: tg4 requires a sampler
Gather operations in both GLSL and SPIR-V require a sampler. Fixes
gathers returning garbage when using separate texture/samplers (on AMD,
was using an invalid sampler descriptor).

Signed-off-by: Alex Smith <asmith@feralinteractive.com>
Cc: "17.2 17.3" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
(cherry picked from commit 4122d00846)
2017-11-17 19:24:29 +00:00
Alex Smith
ce1a2a25d3 spirv: Use correct type for sampled images
We should use the result type of the OpSampledImage opcode, rather than
the type of the underlying image/samplers.

This resolves an issue when using separate images and shadow samplers
with glslang. Example:

    layout (...) uniform samplerShadow s0;
    layout (...) uniform texture2D res0;
    ...
    float result = textureLod(sampler2DShadow(res0, s0), uv, 0);

For this, for the combined OpSampledImage, the type of the base image
was being used (which does not have the Depth flag set, whereas the
result type does), therefore it was not being recognised as a shadow
sampler. This led to the wrong LLVM intrinsics being emitted by RADV.

Signed-off-by: Alex Smith <asmith@feralinteractive.com>
Cc: "17.2 17.3" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
(cherry picked from commit e9eb3c4753)
2017-11-17 19:24:28 +00:00
Emil Velikov
cb9d207ff3 Update version to 17.3.0-rc4
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
2017-11-14 13:27:44 +00:00
Tomasz Figa
0d11c8abfe glsl: Allow precision mismatch on dead data with GLSL ES 1.00
Commit 259fc50545 added linker error for
mismatching uniform precision, as required by GLES 3.0 specification and
conformance test-suite.

Several Android applications, including Forge of Empires, have shaders
which violate this rule, on a dead varying that will be eliminated.
The problem affects a big number of applications using Cocos2D engine
and other GLES implementations accept this, this poses a serious
application compatibility issue.

Starting from GLSL ES 3.0, declarations with conflicting precision
qualifiers are explicitly prohibited. However GLSL ES 1.00 does not
clearly specify the behavior, except that

  "Uniforms are defined to behave as if they are using the same storage in
  the vertex and fragment processors and may be implemented this way.
  If uniforms are used in both the vertex and fragment shaders, developers
  should be warned if the precisions are different. Conversion of
  precision should never be implicit."

The word "used" is not clear in this context and might refer to
 1) declared (same as GLES 3.x)
 2) referred after post-processing, or
 3) linked after all optimizations are done.

Looking at existing applications, 2) or 3) seems to be widely adopted.
To avoid compatibility issues, turn the error into a warning if GLSL ES
version is lower than 3.0 and the data is dead in at least one of the
shaders.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97532
Signed-off-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
(cherry picked from commit 0886be093f)
2017-11-13 17:17:16 +00:00
Kenneth Graunke
8b2c15a60f i965: Make L3 configuration atom listen for TCS/TES program updates.
The L3 configuration code already considers the TCS and TES programs,
but failed to listen for TCS/TES program changes.

This was somehow missing.

Fixes: e9644cb1f9 ("i965: Consider tessellation in get_pipeline_state_l3_weights.")
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
(cherry picked from commit b8d42cccd0)
2017-11-13 17:17:16 +00:00
Dylan Baker
e2036d7b38 autotools: Set C++ visibility flags on Intel
These flags are set for C sources, but not C++. This causes symbol
visibility leaks from the C++ parts of the Intel compiler.

Fixes: 700bebb958 ("i965: Move the back-end compiler to src/intel/compiler")
Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
(cherry picked from commit 854455498c)
2017-11-13 17:17:16 +00:00
Roland Scheidegger
58d0ad6ff8 docs: Fix GL_MESA_program_debug enums
13b303ff92 added the actual enums but
didn't remove the already existing XXXX ones. (And also duplicated
the "fragment" names instead of using the "vertex" names.)

Fixes: 13b303ff92 "docs: Update the list of used MESA GL enums."
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
(cherry picked from commit dd38a4ee0d)
2017-11-13 17:17:16 +00:00
Matt Turner
ee939e7327 nir: Don't print swizzles when there are more than 4 components
... as can happen with various types like mat4, or else we'll smash the
stack writing past the end of components_local[].

Fixes: 5a0d3e1129 ("nir: Print the components referenced for split or
                      packed shader in/outs.")
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
(cherry picked from commit 77a63d190a)
2017-11-13 17:17:16 +00:00
Andreas Boll
7e04e574c7 glsl: Fix typo fragement -> fragment
Fixes: 94d669b0d2 ("glsl: enforce fragment shader input restrictions in
       GLSL ES 3.10")

Signed-off-by: Andreas Boll <andreas.boll.dev@gmail.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
(cherry picked from commit a6932faae1)
2017-11-13 17:17:16 +00:00
Andreas Boll
b9713c9d98 broadcom/vc5: Remove unused v3d_compiler.c
Unused since original import of VC5.

Fixes: ade416d023 ("broadcom: Add VC5 NIR compiler.")

Signed-off-by: Andreas Boll <andreas.boll.dev@gmail.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
(cherry picked from commit 4f29ed38f3)
2017-11-13 17:17:16 +00:00
Emil Velikov
40c905f3c2 configure.ac: require xcb* for the omx/va/... when using x11 platform
Targets such as omx and va can work w/o anything X related. Mandate the
xcb* dependencies only when the X11 platform is selected.

Reported-by: Lukas Rusak <lorusak@gmail.com>
Fixes: 63e11ac2b5 ("configure: error out if building VA w/o supported
platform")
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Tested-by: Lukas Rusak <lorusak@gmail.com> (v1)
(cherry picked from commit 85a017230c)
2017-11-13 17:17:16 +00:00
Emil Velikov
7da8440504 configure.ac: loosen --enable-glvnd check to honour egl
Currently we error out when building GLVND w/o GLX.

That was the original premice before we had EGL. As the commit says,
that error should be reworked to honour both - do so.

v2: Drop noop *);; (Eric)

Reported-by: Lukas Rusak <lorusak@gmail.com>
Fixes: ce562f9e3f ("EGL: Implement the libglvnd interface for EGL (v3)")
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Tested-by: Lukas Rusak <lorusak@gmail.com> (v1)
(cherry picked from commit b4967561c0)
2017-11-13 17:17:15 +00:00
Emil Velikov
797dbe4efa automake: intel: correctly append to the LIBADD variable
Commit 05fc62d89f sets the variable, yet it forgot the update the
existing reference to append (instead of assign).

Thus as-is the expat library was discarded from the link chain when
building with Android.

Fixes: 05fc62d89f ("automake: intel: move expat handling where it's
used")
Cc: Hongxu Jia <hongxu.jia@windriver.com>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
(cherry picked from commit ba414dba4f)
2017-11-13 17:17:15 +00:00
Timothy Arceri
2567e1de88 i965: disable NIR linking on HSW and below
Fixes: 379b24a40d "i965: make use of nir linking"

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=103537
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
(cherry picked from commit a9000cb860)
2017-11-13 17:17:15 +00:00
Juan A. Suarez Romero
3111ec7bdb automake: include git_sha1.h.in in release tarball
Fixes:

make[2]: Leaving directory '/home/local/mesa/mesa-17.4.0-devel/_build/sub/src'
make[2]: *** No rule to make target '../../../src/git_sha1.h.in', needed by 'git_sha1.h'.  Stop.
Makefile:660: recipe for target 'all-recursive' failed

Fixes: 16be271c6e "git_sha1_gen: use git_sha1.h.in on all build systems"
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Signed-off-by: Juan A. Suarez Romero <jasuarez@igalia.com>
(cherry picked from commit e17e8934f9)
2017-11-13 17:17:15 +00:00
Neil Roberts
15ec317be8 glsl: Transform fb buffers are only active if a variable uses them
The GL spec will soon be revised to clarify that a buffer binding for
a transform feedback buffer is only required if a variable is actually
defined to use the buffer binding point. Previously a declaration for
the default transform buffer would make it require a binding even if
nothing was declared to use the default buffer.

Affects:
KHR-GL44/45.enhanced_layouts.xfb_stride_of_empty_list
KHR-GL44/45.enhanced_layouts.xfb_stride_of_empty_list_and_api

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 4dc8458cd1)
2017-11-13 17:17:15 +00:00
Juan A. Suarez Romero
53667c7f2e glsl: add varying resources for arrays of complex types
This patch is mostly a patch done by Ilia Mirkin.

It fixes KHR-GL45.enhanced_layouts.varying_structure_locations.

v2: fix locations for TCS/TES/GS inputs and outputs (Ilia)

CC: Ilia Mirkin <imirkin@alum.mit.edu>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=103098
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Signed-off-by: Juan A. Suarez Romero <jasuarez@igalia.com>
(cherry picked from commit d5a641106b)
2017-11-13 17:17:15 +00:00
Jason Ekstrand
add373f7dd intel/nir: Use the correct indirect lowering masks in link_shaders
Previously, if we were linking a vec4 VS with a SIMD8/16 FS, we wouldn't
lower indirects on the fragment shader which is wrong.  Instead of using
a single indirect mask, take advantage of our new little helper.

Reviewed-by: Timothy Arceri <tarceri at itsqueeze.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 951a5dc4cc)
2017-11-10 19:17:21 +00:00
Timothy Arceri
1f145df1c3 mesa: rework how we free gl_shader_program_data
When I introduced gl_shader_program_data one of the intentions was to
fix a bug where a failed linking attempt freed data required by a
currently active program. However I seem to have failed to finish
hooking up the final steps required to have the data hang around.

Here we create a fresh instance of gl_shader_program_data every
time we link. gl_program has a reference to gl_shader_program_data
so it will be freed once the program is no longer active.

Cc: "17.2 17.3" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Neil Roberts <nroberts@igalia.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=102177
(cherry picked from commit 6a72eba755)
2017-11-10 19:17:21 +00:00
Timothy Arceri
34ac137d3f glsl: use the correct parent when allocating program data members
Cc: "17.2 17.3" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
(cherry picked from commit 9c33533586)
2017-11-10 19:17:21 +00:00
Timothy Arceri
26835cf6e3 glsl: drop cache_fallback
This turned out to be a dead end, it is much easier and less error
prone to just cache the IR used by the drivers backend e.g. TGSI or
NIR.

Cc: "17.2 17.3" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
(cherry picked from commit cf05bb506a)
2017-11-10 19:17:20 +00:00
Kenneth Graunke
4cf6b9e7ed i965: properly initialize brw->cs.base.stage to MESA_SHADER_COMPUTE
This has a bit of a surprising effect:

For the render pipeline, the upload_sampler_state_table atom emits
3DSTATE_BINDING_TABLE_POINTERS_XS.  It tries to avoid this for compute:

   if (GEN_GEN >= 7 && stage_state->stage != MESA_SHADER_COMPUTE) {
      /* Emit a 3DSTATE_SAMPLER_STATE_POINTERS_XS packet. */
      genX(emit_sampler_state_pointers_xs)(brw, stage_state);
   } ...

However, we were failing to initialize brw->cs.base.stage, so it was
left as 0 (MESA_SHADER_VERTEX), causing this condition to break.  We
then emitted 3DSTATE_SAMPLER_STATE_POINTERS_VS in GPGPU mode, when
trying to upload CS samplers.  Nothing good can come of this.

Found by inspection while debugging a GPU hang.  Jordan believes this
helps the Deus Ex: Mankind Divided benchmark mode's stability when
running with shader cache.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
(cherry picked from commit a16dc04ad5)
2017-11-10 19:17:20 +00:00
Jason Ekstrand
b4cc8b9b12 intel/nir: Break the linking code into a helper in brw_nir.c
Reviewed-by: Timothy Arceri <tarceri at itsqueeze.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 3e63cf893f)
2017-11-10 19:17:20 +00:00
Jason Ekstrand
c40cf117ee intel/nir: Add a helper for getting the NoIndirect mask
Reviewed-by: Timothy Arceri <tarceri at itsqueeze.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 7364f080f9)
2017-11-10 19:17:20 +00:00
Andreas Boll
1b206e3b58 broadcom/vc5: Add vc5_drm.h to the release tarball
Fixes: 45bb8f2957 ("broadcom: Add V3D 3.3 gallium driver called "vc5",
       for BCM7268.")

Cc: 17.3 <mesa-stable@lists.freedesktop.org>
Signed-off-by: Andreas Boll <andreas.boll.dev@gmail.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
(cherry picked from commit 6e4d65f674)
2017-11-10 19:17:20 +00:00
Emil Velikov
9e1698b17b targets/opencl: don't hardcode the icd file install to /etc/...
Use $(sysconfdir) instead of hardcoding /etc.

While the OpenCL spec expects the file in /etc, people building their
stack can override that, esp. !Linux users.

Furthermore this removes a fundamental violation, which results in the
system file being overwritten even as one explicitly sets --prefix
and/or DESTDIR.

Cc: mesa-stable@lists.freedesktop.org
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Reviewed-By: Aaron Watry <awatry@gmail.com>
(cherry picked from commit 0cd0958544)
2017-11-10 19:17:20 +00:00
Jason Ekstrand
2c6986c3b5 intel/fs: Rework zero-length URB write handling
Originally we tried to handle this case based on slots_valid.  However,
there are a number of ways that this can go wrong.  For one, we throw
away any trailing slots which either aren't written or are set to
VARYING_SLOT_PAD.  Second, even if PSIZ is a valid slot, we may not
actually write anything there.  Between the lot of these, it was
possible to end up in a case where we tried to do a regular URB write
but ended up with a length of 1 which is invalid.  This commit moves it
to the end and makes it based on a new boolean flag urb_written.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 7a82ad54bb)
2017-11-10 19:17:20 +00:00
Jason Ekstrand
844b437034 intel/fs: Mark 64-bit values as being contiguous
This isn't often a problem , when we're in a compute shader, we must
push the thread local ID so we decrement the amount of available push
space by 1 and it's no longer even and 64-bit data can, in theory, span
it.  By marking those uniforms contiguous, we ensure that they never get
split in half between push and pull constants.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 25f7453c9e)
2017-11-10 19:17:20 +00:00
Jason Ekstrand
e759beb906 intel/fs: Fix integer multiplication lowering for src/dst hazards
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit d54f8ec744)
2017-11-10 16:29:27 +00:00
Jason Ekstrand
bd5db7af2a intel/fs: Fix MOV_INDIRECT for 64-bit values on little-core
The same workaround we need for 64-bit values on little core also takes
care of the Ivy Bridge problem and does so a bit more efficiently so we
can drop that code while we're here.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit fd1bcccc2d)
2017-11-10 16:29:27 +00:00
Jason Ekstrand
b9ddb51c19 intel/eu/reg: Add a subscript() helper
This is similar to the identically named fs_reg helper.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 10e4feed39)
2017-11-10 16:29:27 +00:00
Jason Ekstrand
d1060ba31f intel/fs: Use a pair of 1-wide MOVs instead of SEL for any/all
For some reason, the any/all predicates don't work properly with SIMD32.
In particular, it appears that a SEL with a QtrCtrl of 2H doesn't read
the correct subset of the flag register and you end up getting garbage
in the second half.  Work around this by using a pair of 1-wide MOVs and
scattering the result.  This fixes the any/all instructions for SIMD32.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 1b8ef49f48)
2017-11-10 16:29:27 +00:00
Jason Ekstrand
7db7159536 intel/fs: Use an explicit D type for vote any/all/eq intrinsics
The any/all intrinsics return a boolean value so D or UD is the correct
type.  Unfortunately, get_nir_dest has the annoying behavior of
returnning a float type by default.  This causes format conversion which
gives us -1.0f or 0.0f in the register.  If the consumer of the result
does an integer comparison to zero, it will give you the right boolean
value but if we do something more clever based on the 0/~0 assumption
for booleans, this will give the wrong value.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 1f41663007)
2017-11-10 16:29:27 +00:00
Jason Ekstrand
a44f33f740 intel/fs: Don't stomp f0.1 in SIMD16 ballot
In fragment shaders f0.1 is used for discards so doing ballot after a
discard can potentially cause the discard to not happen.  However, we
don't support SIMD32 fragment shaders yet so this isn't a problem.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 6c00240bc6)
2017-11-10 16:29:27 +00:00
Jason Ekstrand
5cd286710e intel/fs: Use ANY/ALL32 predicates in SIMD32
We have ANY/ALL32 predicates and, for the most part, they work just
fine.  (See the next commit for more details.)  Also, due to the way
that flag registers are handled in hardware, instruction splitting is
able to split the CMP correctly.  Specifically, that hardware looks at
the execution group and knows to shift it's flag usage up correctly so a
2H instruction will write to f0.1 instead of f0.0.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit def013a863)
2017-11-10 16:29:26 +00:00
Jason Ekstrand
e012ec8775 intel/fs: Be more explicit about our placement of [un]zip
Before, we were careful to place the zip after the last of the split
instructions but did unzip on-demand.  This changes things so that the
unzips go before all of the split instructions and the unzip comes
explicitly after all the split instructions.  As a side-effect of this
change, we now emit the split instruction from highest SIMD group to
lowest instead of low to high.  We could have kept the old behavior, but
it shouldn't matter and this made the code easier.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 0d905597fe)
2017-11-10 16:29:26 +00:00
Jason Ekstrand
b0b9db69d8 intel/fs: Pass builders instead of blocks into emit_[un]zip
This makes it far more explicit where we're inserting the instructions
rather than the magic "before and after" stuff that the emit_[un]zip
helpers did based on block and inst.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit fcd4adb9d0)
2017-11-10 16:29:26 +00:00
Jason Ekstrand
9db1478039 intel/fs: Use a pure vertical stride for large register strides
Register strides higher than 4 are uncommon but they can happen.  For
instance, if you have a 64-bit extract_u8 operation, we turn that into
UB -> UQ MOV with a source stride of 8.  Our previous calculation would
try to generate a stride of <32;8,8>:ub which is invalid because the
maximum horizontal stride is 4.  To solve this problem, we instead use a
stride of <8;1,0>.  As noted in the comment, this does not work as a
destination but that's ok as very few things actually generate that
stride.

Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit e8c9e65185)
2017-11-10 16:29:26 +00:00