Commit Graph

99148 Commits

Author SHA1 Message Date
Timothy Arceri f69cbb2b53 st/glsl_to_nir: disable io lowering to temps for tess
Lowering these to temps makes a big mess, and results in some
piglit test failures. Also the radeonsi backend (the only backend
to support tess) has support for indirects so there is no need to
lower them anyway.

Fixes the following piglit tests on radeonsi:

tests/spec/arb_tessellation_shader/execution/variable-indexing/tes-input-array-vec3-index-rd.shader_test
tests/spec/arb_tessellation_shader/execution/variable-indexing/tes-input-array-vec4-index-rd.shader_test

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
2018-01-17 17:14:14 +11:00
Jason Ekstrand af10ce21ff i965: Enable CCS_E sampling of sRGB textures as UNORM
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2018-01-16 21:41:32 -08:00
Jason Ekstrand 96aa558715 i965/draw: Do resolves properly for textures used by TXF
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2018-01-16 21:41:32 -08:00
Jason Ekstrand 361e1df1ed i965/miptree: Refactor CCS_E and CCS_D cases in render_aux_usage
This commit unifies the CCS_E and CCS_D cases.  This should fix a couple
of subtle issues.  One is that when you use INTEL_DEBUG=norbc to disable
CCS_E, we don't get the sRGB blending workaround.  By unifying the code,
we give CCS_D that workaround as well.

The second issue fixed by this refactor is that the blending workaround
was appears to be enabled on all gens but really only applies on gen9.
Due to a happy accident in the way code was laid out, it was only
getting enabled on gen9: gen8 and earlier don't support non-zero-one
clear colors, and gen10 supports sRGB for CCS_E so it got caught in the
format_ccs_e_compat_with_miptree case.  This refactor moves it above the
format_ccs_e_compat_with_miptree case so it's an explicit early exit and
makes it explicitly only on gen9.

Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "17.3" <mesa-stable@lists.freedesktop.org>
2018-01-16 21:41:32 -08:00
Jason Ekstrand f79bb2e651 Re-enable regular fast-clears (CCS_D) on gen9+
This reverts commit ee57b15ec7, "i965:
Disable regular fast-clears (CCS_D) on gen9+".  How taht we've fixed the
issue with too many different aux usages in the render cache, it should
be safe to re-enable CCS_D for sRGB.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104163
Tested-by: Eero Tamminen <eero.t.tamminen@intel.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "17.3" <mesa-stable@lists.freedesktop.org>
2018-01-16 21:41:32 -08:00
Jason Ekstrand d84275b884 i965: Track format and aux usage in the render cache
This lets us perform render cache flushes whenever a surface goes from
being used with one aux+format to a different aux+format.

This is the "proper" fix for https://bugs.freedesktop.org/102435.
ee57b15ec7 which was really just a partial
revert of 3e57e9494c was just a hack to
get rid of a hang in a bunch of Valve games.  This solves the actual
problem responsible for the hang and lets us enable CCS_E once again.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=102435
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "17.3" <mesa-stable@lists.freedesktop.org>
2018-01-16 21:41:32 -08:00
Jason Ekstrand 622786c20c i965: Call brw_cache_flush_for_render in predraw_resolve_framebuffer
This makes sure we flush things out of other caches prior to using a
surface through the render cache.  Currently, this is a no-op because GL
won't let you bind anything other than a color surface as color so it
should never end up in the depth cache.  However, this does complete the
flush/add_bo pair for regular drawing which will be required for the
next commit.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "17.3" <mesa-stable@lists.freedesktop.org>
2018-01-16 21:41:32 -08:00
Francisco Jerez 53d8508f1d i965/gen6-7/sol: Bump primitive counter BO size.
Improves performance of SynMark2 OglGSCloth by a further 9.65%±0.59%
due to the reduction in overwraps of the primitive count buffer that
lead to a CPU stall on previous rendering.  Cummulative performance
improvement from the series 81.50% ±0.96% (data gathered on VLV).

Tested-By: Eero Tamminen <eero.t.tamminen@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2018-01-16 16:03:56 -08:00
Francisco Jerez f476b3f6e7 i965/gen6-7/sol: Keep independent counters for the current and previous begin/end block.
This allows us to aggregate the primitive counts of a completed
transform feedback begin/end block lazily, which in the most typical
case (where glDrawTransformFeedback is not used) will allow us to
avoid aggregating the primitive counters on the CPU altogether,
preventing a stall on previous rendering during
glBeginTransformFeedback(), which dramatically improves performance of
applications that rely heavily on transform feedback.

Improves performance of SynMark2 OglGSCloth by 65.52% ±0.25% (data
gathered on VLV).

Tested-By: Eero Tamminen <eero.t.tamminen@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2018-01-16 16:03:48 -08:00
Francisco Jerez b0c8d61281 i965/gen6-7/sol: Restructure primitive counter into a separate type.
A primitive counter encapsulates a scalar aggregating counter for each
vertex stream along with a section within the primitive tally buffer
which hasn't been read out yet.  Defining this as a separate type will
allow us to keep multiple counter objects around for the same
transform feedback object without any code duplication.

Tested-By: Eero Tamminen <eero.t.tamminen@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2018-01-16 16:03:42 -08:00
Timothy Arceri dc520dafdc st/mesa: enable ARB_enhanced_layouts on nir drivers
I'm guessing this may have been disable because of missing
component packing support. However recent nir linking changes
required nir based gallium drivers to support component packing
so this should now be ok to enable.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
2018-01-17 10:42:55 +11:00
Roland Scheidegger b0413cfd8b draw: remove VSPLIT_CREATE_IDX macro
Just inline the little bit of code.

Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
2018-01-17 00:01:19 +01:00
Roland Scheidegger 1f462eaf39 draw: fix vsplit code when the (post-bias) index value is -1
vsplit_add_cache uses the post-bias index for hashing, but the
vsplit_add_cache_uint/ushort/ubyte ones used the pre-bias index, therefore
the code for handling the special case (because -1 matches the initialization
value of the cache) wasn't actually working.
Commit 78a997f728 actually simplified the
cache logic somewhat, but it looks like this particular problem carried over
(and duplicated to the ushort/ubyte cases, since before only uint needed it).
This could lead to the vsplit cache doing the wrong thing, in particular
later fetch_info might indicate there are 0 values to fetch. This only really
affected edge cases which were bogus to begin with, but it could lead to a
crash with the jit vertex shader, since it cannot handle this case correctly
(the count loop is always executed at least once and we would not allocate
any memory for the shader outputs), so add another assert to catch it there.

Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
2018-01-17 00:01:19 +01:00
Grazvydas Ignotas 0ad73031ec st/va: release held locks in error paths
Found with the help of following Coccinelle semantic patch:
// <smpl>
@@
expression E;
@@

  \(pthread_mutex_lock\|mtx_lock\|simple_mtx_lock\)(E)
  ...
(
  \(pthread_mutex_unlock\|mtx_unlock\|simple_mtx_unlock\)(E);
  ...
  return ...;
|
+ maybe need_unlock(E);
  return ...;
)
// </smpl>

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Cc: mesa-stable@lists.freedesktop.org
2018-01-17 00:39:55 +02:00
Grazvydas Ignotas cce982a70b mesa: remove unneeded semicolons
Trivial. Found by Coccinelle.

Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
2018-01-17 00:39:55 +02:00
Grazvydas Ignotas e3adb1abaf radeon: remove unneeded semicolons
Trivial. Found by Coccinelle.

Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
2018-01-17 00:39:55 +02:00
Grazvydas Ignotas 6129c03cc7 osmesa: don't check SmoothFlag twice
Trivial. Found by Coccinelle.

Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
2018-01-17 00:39:55 +02:00
Samuel Pitoiset 05f73b9672 ac: set no-signed-zeros-fp-math when RADV_DEBUG="unsafemath" is used
This is an optimisation that is recommended by Matt Arsenault,
and used by RadeonSI, but it's not compatible with Vulkan.

Note that AC_FLOAT_MODE_UNSAFE_FP_MATH includes the no signed
zeros flag in LLVM.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
2018-01-16 21:39:57 +01:00
Samuel Pitoiset 4f5318df2c ac: set fast math flags when RADV_DEBUG="unsafemath" is used
When that debug option is not used, we use the default float mode
because the no signed zeros optimisation is not Vulkan compatible.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
2018-01-16 21:39:55 +01:00
Samuel Pitoiset 2091206ad3 ac: import lp_create_builder() from gallivm
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
2018-01-16 21:39:53 +01:00
Samuel Pitoiset ad2b3b2a9c ac: replace llvm.AMDGPU.kilp by llvm.amdgcn.kill with LLVM 6
This also replaces llvm.AMDGPU.kilp by llvm.AMDGPU.kill with
LLVM < 6. Similar to RadeonSI codepath.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
2018-01-16 21:39:51 +01:00
Juan A. Suarez Romero 9b894c88a6 glsl/linker: link-error using the same name in unnamed block and outside
According with OpenGL GLSL 4.20 spec, section 4.3.9, page 57:

   "It is a link-time error if any particular shader interface
    contains:
      - two different blocks, each having no instance name, and each
        having a member of the same name, or
      - a variable outside a block, and a block with no instance name,
        where the variable has the same name as a member in the block."

This means that it is a link error if for example we have a vertex
shader with the following definition.

  "layout(location=0) uniform Data { float a; float b; };"

and a fragment shader with:

  "uniform float a;"

As in both cases we refer to both uniforms as "a", and thus using
glGetUniformLocation() wouldn't know which one we mean.

This fixes KHR-GL*.shaders.uniform_block.common.name_matching.

v2: add fixed tests (Tapani)

Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
2018-01-16 19:42:35 +01:00
Samuel Thibault 47ac11bcf8 glx: fix non-dri build
glXGetDriverConfig parameters do not provide a context to dynamically
check for the presence of the function, so the dispatcher directly calls
glXGetDriverConfig, but in non-dri builds dri_glx.c didn't provide
glXGetDriverConfig.

This change make it just return NULL in that case.

Fixes: 84f764a759 "glxglvnddispatch: Add missing dispatch for GetDriverConfig
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
2018-01-16 16:27:19 +00:00
Indrajit Das 338638a8af st/va: clear pointers for mpeg2 quantiser matrices
This is to fix VA-API issues with GStreamer and MPEG2.
Since gstreamer does not pass quantiser matrices with each frame, invalid
pointers were being passed to the driver. This patch addresses the same.

Signed-off-by: Indrajit Das <indrajit-kumar.das@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
2018-01-16 10:51:15 +01:00
Indrajit Das f5277e8492 radeon/vcn: update quantiser matrices only when requested
Only update them when the pointers are valid.

Signed-off-by: Indrajit Das <indrajit-kumar.das@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
2018-01-16 10:51:00 +01:00
Indrajit Das 38dee62c9a radeon/uvd: update quantiser matrices only when requested
Only upload them when the pointers are valid.

Signed-off-by: Indrajit Das <indrajit-kumar.das@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
2018-01-16 10:50:08 +01:00
Adam Jackson 1cbcd70b64 Revert "docs: Mark GLX_ARB_context_flush_control done"
This reverts commit d547e18184.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104490
Signed-off-by: Adam Jackson <ajax@redhat.com>
2018-01-15 13:48:41 -05:00
Adam Jackson 138f4e3805 Revert "gallium/dri2: Enable {GLX_ARB,EGL_KHR}_context_flush_control"
This reverts commit 0d044351b7.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104490
Signed-off-by: Adam Jackson <ajax@redhat.com>
2018-01-15 13:48:39 -05:00
Adam Jackson f2a5d27ce2 Revert "i965: Enable flush control"
This reverts commit 6ce9006d76.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104490
Signed-off-by: Adam Jackson <ajax@redhat.com>
2018-01-15 13:48:16 -05:00
Samuel Pitoiset 8045f01e2a Revert "ac/shader: gather If TES reads TESSINNER or TESSOUTER"
This can't work for two reasons:
- TESSINNER/TESSOUTER are shader input values, so never translated
to the intrinsic ops
- the shader info pass scans the current stage but we want to know
in TCS, if TES reads the tess factors.

This fixes 6 regressions related to
deqp-vk/tessellation/shader_input_output/tess_level_{inner,outer}_XXX_tes

This reverts commit 5ba1a61648.
2018-01-15 13:47:18 +01:00
Samuel Pitoiset 5842cb0df1 amd/common: fix loading InstanceID for tess on < GFX9
InstanceID is in VGPR2, not 1.

One more failure that CTS didn't catch up...

Reported-by: Alex Smith <asmith@feralinteractive.com>
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
2018-01-15 11:59:16 +01:00
Samuel Pitoiset 5ba1a61648 ac/shader: gather If TES reads TESSINNER or TESSOUTER
This shouldn't be scanned in the pipeline.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
2018-01-15 11:51:47 +01:00
Samuel Pitoiset aebde47840 ac: remove ac_shader_variant_info::fs::output_mask
Unused.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
2018-01-15 11:48:42 +01:00
Gert Wollny 5d6470d26b r600/shader: Initialize max_driver_temp_used correctly for the first time
Without this initialization the temp registers used in tgsi_declaration
may used random indices, and this may result in failing translation from TGSI
with an error message "GPR limit exceeded", because the random index is greater
then the allowed limit implying that the shader uses more temporary registers then
available.

Signed-off-by: Gert Wollny <gw.fossdev@gmail.com>
Cc: <mesa-stable@lists.freedesktop.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2018-01-15 09:14:22 +10:00
Rob Clark f10bd0a0e1 freedreno/ir3: "soft" depth scheduling for SFU instructions
First try with a "soft" depth, to try to schedule sfu instructions
further from their consumers, but fall back to hard depth (which might
result in stalling) if nothing else is avail to schedule.

Previously the consumer of a sfu instruction could end up scheduled
immediately after (since "hard" depth from sfu to consumer would be 0).
This works because legalize pass would insert a (ss) sync bit, but it
is sub-optimal since it would cause a stall.

Instead prioritize other instructions for 4 cycles if they would no
cause a nop to be inserted.  This minimizes the stalling.  There is a
slight penalty in general to overall # of instructions in shader (since
we could end up needing nop's later due to scheduling the "deeper" sfu
consumer later), but ends up being a wash on register pressure.

Overall this seems to be worth a 10+% gain in fps.  Increasing the
"soft" depth of sfu consumer beyond 4 helps a bit in some cases, but 4
seems to be a good trade-off between getting 99% of the gain and not
increasing instruction count of shaders too much.

It's possible a similar approach could help for tex/mem instructions,
but the (sy) sync bit seems to trigger a switch to a different thread-
group to hide memory latency (possibly with some limits depending on
number of registers used?).

Signed-off-by: Rob Clark <robdclark@gmail.com>
2018-01-14 16:14:19 -05:00
Rob Clark 50f9a9aa96 freedreno/a5xx: work around SWAP vs TILE_MODE constraint
If the blit isn't changing format, but is changing tiling, just lie and
call things ARGB (since the exact component order doesn't matter for a
tiling blit).

Signed-off-by: Rob Clark <robdclark@gmail.com>
2018-01-14 16:14:19 -05:00
Rob Clark 39b63c18f1 freedreno/a5xx: texture tiling
Overall a nice 5-10% gain for most games.  And more for things like
glmark2 texture benchmark.

There are some rough edges.  In particular, the hardware seems to only
support tiling or component swap.  (Ie. from hw PoV, ARGB/ABGR/RGBA/
BGRA are all the same format but with different component swap.)  For
tiled formats, only ARGB is possible.  This isn't a big problem for
*sampling* since we also have swizzle state there (and since
util_format_compose_swizzles() already takes into account the component
order, we didn't use COLOR_SWAP for sampling).  But it is a problem if
you try to render to a tiled BGRA (for example) surface.

The next patch introduces a workaround for blitter, so we can generate
tiled textures in ABGR/RGBA/BGRA, but that doesn't help the render-
target case.  To handle that, I think we'd need to keep track that the
tiled format is different from the linear format, which seems like it
would get extra fun with sampler views/etc.

So for now, disabled by default, enable with FD_MESA_DEBUG=ttile.  In
practice it works fine for all the games I've tried, but makes piglit
grumpy.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2018-01-14 16:13:39 -05:00
Rob Clark 868b02cfb4 freedreno: update generated headers
Signed-off-by: Rob Clark <robdclark@gmail.com>
2018-01-14 16:10:06 -05:00
Rob Clark 16b91c2254 freedreno: add screen->setup_slices() for tex layout
The rules are sufficiently different for a5xx with tiled textures, so
split this out into something that can be implemented per-generation.
The a5xx specific implementation will come in a later patch.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2018-01-14 16:10:06 -05:00
Grazvydas Ignotas 047c6fe2c5 r300g: remove double assignment
Trivial. Found by Coccinelle.
2018-01-14 23:04:49 +02:00
Grazvydas Ignotas 6acf22a179 util: use faster zlib's CRC32 implementaion
zlib provides a faster slice-by-4 CRC32 implementation than the
traditional single byte lookup one used by mesa. As most supported
platforms now link zlib unconditionally, we can easily use it.

Improvement for a 1MB buffer (avg MB/s, n=100, zlib 1.2.8):

  i5-6600K                    C2D E4500
mesa zlib                    mesa zlib
 443 1443 225% +/- 2.1%       403 1175 191% +/- 0.9%

It has been verified the calculation results stay the same after this
change.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
2018-01-14 19:10:33 +02:00
Grazvydas Ignotas 87f723408b android,configure,meson: define HAVE_ZLIB
The next change wants to use some optional zlib functionality, however
not all platforms currently use zlib. Based on earlier Jordan Justen's
patches and their review feedback.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
2018-01-14 18:52:23 +02:00
Grazvydas Ignotas b7347cc313 util/crc32: don't drop the const qualifier
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
2018-01-14 18:47:50 +02:00
Timothy Arceri e6378962ce ac: add doubles support to isign
Fixes a number of int64 piglit tests, for example:

generated_tests/spec/arb_gpu_shader_int64/execution/built-in-functions/fs-sign-i64vec2.shader_test

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
2018-01-14 11:40:03 +11:00
Timothy Arceri 38876c88d1 ac: add i64_0 and i64_1 to llvm build context
These will be used in the following patch.

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
2018-01-14 11:40:03 +11:00
Timothy Arceri 741b21b713 ac/nir: fix translation of nir_op_b2i for doubles
V2: just zero-extend the 32-bit value.

Fixes a number of int64 piglet tests, for example:

generated_tests/spec/arb_gpu_shader_int64/execution/conversion/frag-conversion-explicit-bool-int64_t.shader_test

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
2018-01-14 11:40:03 +11:00
Mauro Rossi 4d61eb8018 ac: fix build error in si_shader
assert() is replaced by unreachable(), to avoid following building error:

external/mesa/src/gallium/drivers/radeonsi/si_shader.c:1967:1:
error: control may reach end of non-void function [-Werror,-Wreturn-type]
}
^
1 error generated.

Fixes: c797cd6 ("ac: add load_patch_vertices_in() to the abi")

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
2018-01-13 18:13:07 +11:00
Timothy Arceri f0d74ecce8 radv/radeonsi/nir: lower 64bit flrp
Fixes a bunch of arb_gpu_shader_fp64 piglit tests for example:

generated_tests/spec/arb_gpu_shader_fp64/execution/built-in-functions/fs-mix-double-double-double.shader_test

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
2018-01-13 18:04:40 +11:00
Eric Anholt 5bc0b63799 broadcom/vc5: Use MSF to ignore discards/non-dispatched channels in loops.
Prevents potential infinite loops when a non-dispatched or discarded
channel never triggers the loop break condition.
2018-01-12 21:58:24 -08:00
Eric Anholt 762dd52951 broadcom/vc5: Use XOR instead of SUB for execute flags comparisons.
I think this should be equivalent other than power, and it's the kind of
comparison we use for nir_op_ieq.
2018-01-12 21:58:18 -08:00