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raw copy.
This was likely the original intention, and at least register coalesce
relies on it.
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
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There was a workaround for this in fs_inst::size_read() for the
SHADER_OPCODE_MOV_INDIRECT instruction and FIXED_GRF register file
*only*. We should take this possibility into account for the sources
and destinations of all instructions on all optimization passes that
need to quantize dataflow in 32B increments by adding the amount of
misalignment to the size read or written from the regs_read() and
regs_written() helpers respectively.
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
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The LINTERP virtual instruction only reads three scalar components
from the first 16B of the second source, we can now teach size_read()
about it since its return value is represented with byte granularity.
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
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UNIFORM files.
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
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The previous regs_read value can be recovered by rewriting each
reference of regs_read() like 'x = i.regs_read(j)' to 'x =
DIV_ROUND_UP(i.size_read(j), reg_unit)'.
For the same reason as in the previous patches, this doesn't attempt
to be particularly clever about simplifying the result in the interest
of keeping the rather lengthy patch as obvious as possible. I'll come
back later to clean up any ugliness introduced here.
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
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The previous regs_written field can be recovered by rewriting each
rvalue reference of regs_written like 'x = i.regs_written' to 'x =
DIV_ROUND_UP(i.size_written, reg_unit)', and each lvalue reference
like 'i.regs_written = x' to 'i.size_written = x * reg_unit'.
For the same reason as in the previous patches, this doesn't attempt
to be particularly clever about simplifying the result in the interest
of keeping the rather lengthy patch as obvious as possible. I'll come
back later to clean up any ugliness introduced here.
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
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This is in preparation for dropping fs_inst::regs_read and
::regs_written in favor of more accurate alternatives expressed in
byte units. The main reason these wrappers are useful is that a
number of optimization passes implement dataflow analysis with
register granularity, so these helpers will come in handy once we've
switched register offsets and sizes to the byte representation. The
wrapper functions will also make sure that GRF misalignment (currently
neglected by most of the back-end) is taken into account correctly in
the calculation of regs_read and regs_written.
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
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The fs_reg::subreg_offset and ::offset fields are now redundant, the
sub-GRF offset can just be added to the single ::offset field
expressed in byte units. The current subreg_offset value can be
recovered by applying the following rule: Replace each rvalue
reference of subreg_offset like 'x = r.subreg_offset' with 'x =
r.offset % reg_unit', and each lvalue reference like 'r.subreg_offset
= x' with 'r.offset = ROUND_DOWN_TO(r.offset, reg_unit) + x'.
For the same reason as in the previous patches, this doesn't attempt
to be particularly clever about simplifying the result in the interest
of keeping the rather lengthy patch as obvious as possible. I'll come
back later to clean up any ugliness introduced here.
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
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The fs_reg::offset field in byte units introduced in this patch is a
more straightforward alternative to the current register offset
representation split between fs_reg::reg_offset and ::subreg_offset.
The split representation makes it too easy to forget about one of the
offsets while dealing with the other, which has led to multiple
back-end bugs in the past. To make the matter worse the unit
reg_offset was expressed in was rather inconsistent, for uniforms it
would be expressed in either 4B or 16B units depending on the
back-end, and for most other things it would be expressed in 32B
units.
This encodes reg_offset as a new offset field expressed consistently
in byte units. Each rvalue reference of reg_offset in existing code
like 'x = r.reg_offset' is rewritten to 'x = r.offset / reg_unit', and
each lvalue reference like 'r.reg_offset = x' is rewritten to
'r.offset = r.offset % reg_unit + x * reg_unit'.
Because the change affects a lot of places and is rather non-trivial
to verify due to the inconsistent value of reg_unit, I've tried to
avoid making any additional changes other than applying the rewrite
rule above in order to keep the patch as simple as possible, sometimes
at the cost of introducing obvious stupidity (e.g. algebraic
expressions that could be simplified given some knowledge of the
context) -- I'll clean those up later on in a second pass.
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
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Blorp doesn't handle spilling so we set allow_spilling to false in that
case. The blorp 16x MSAA resolve shader spills in 16-wide but not 8-wide.
This commit makes it so that we fail the 16-wide compile and successfully
fall back to 8-wide instead of just assert-failing when trying to compile
the 16-wide shader.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
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Generated by:
sed -i -e 's/brw_device_info/gen_device_info/g' src/intel/**/*.c
sed -i -e 's/brw_device_info/gen_device_info/g' src/intel/**/*.h
sed -i -e 's/brw_device_info/gen_device_info/g' **/i965/*.c
sed -i -e 's/brw_device_info/gen_device_info/g' **/i965/*.cpp
sed -i -e 's/brw_device_info/gen_device_info/g' **/i965/*.h
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
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Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
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Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
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This will be required for the next commit since the non-coherent path
makes use of the fragment coordinates implicitly, so they need to be
calculated.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
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The result of a framebuffer fetch from a multisample FBO is inherently
per-sample, so the spec requires at least those sections of the shader
that depend on the framebuffer fetch result to be executed once per
sample.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
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ANY4H is more efficient than ANY8H and ANY16H because it makes sure
that whenever a whole subspan hits a discard statement it gets
disabled by the EU until the end of the program, regardless of whether
the discard condition is uniform across all channels of the SIMD8-16
thread. OTOH ANY8H/ANY16H would cause the rest of the program to be
executed for *all* channels if only one of the channels hadn't taken
the discard branch, potentially increasing the bandwidth and ALU usage
of the program unnecessarily.
This change increases the FPS by over 3x of a simple micro-benchmark
that discards a bunch of fragments and then does a single costly
texturing operation. I've just re-verified the FPS change on HSW and
SKL, but I expect all platforms from Gen6 up to get a similar benefit.
Note that we could potentially be more aggressive and use the NORMAL
predicate to discard individual channels, but that would need to
happen post-scheduling because the scheduler currently doesn't care to
reorder HALT instructions with respect to other instructions, and the
NORMAL predicate would cause the results of subsequent derivative
computations to become undefined -- If the scheduler didn't reorder
HALT instructions it would actually be safe to switch to NORMAL
because the behavior of derivative computations after a non-uniform
discard statement is undefined by the GLSL spec, but that would make
the optimization implemented by one of the following commits somewhat
more difficult.
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
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The current logic used to determine the execution size of sampler
messages was based on special-casing several argument and opcode
combinations, which unsurprisingly missed the possibility that some
messages could exceed the payload size limit or not depending on the
number of coordinate components present. In particular:
- The TXL, TXB and TEX messages (the latter on non-FS stages only)
would attempt to use SIMD16 on Gen7+ hardware even if a shadow
reference was present and the texture was a cubemap array, causing
it to overflow the maximum supported sampler payload size and
crash.
- The TG4_OFFSET message with shadow comparison was falling back to
SIMD8 regardless of the number of coordinate components, which is
unnecessary when two coordinates or less are present.
Both cases have been handled incorrectly ever since cubemap arrays and
texture gather were respectively enabled (the current logic used by
the SIMD lowering pass is almost unchanged from the previous no16
fall-back logic used pre-SIMD lowering times).
Fixes the following GL4.5 conformance test on Gen7-8 (the bug also
affects Gen9+ in principle, but SKL passes the test by luck because it
manages to use the TXL_LZ message instead of TXL):
GL45-CTS.texture_cube_map_array.sampling
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97267
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
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This makes it easier for the caller to find out how many scalar
components are actually read by the instruction. As a bonus we no
longer need to special-case BAD_FILE in the implementation of
fs_inst::regs_read.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
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This simplifies the code slightly and will allow the SIMD lowering
pass to find out easily what the actual texturing opcode is in order
to determine the maximum execution size of texturing instructions.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
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Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
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The pass I introduced in commit a2dc11a7818c04d8dc0324e8fcba98d60bae
was entirely broken. A missing "break" made the load_interpolated_input
case always fall through to "default" and hit a "continue", making it
not actually move any load_interpolated_input intrinsics at all.
It would only move the simple load_barycentric_* intrinsics, which
don't emit any code anyway, making it basically useless.
The initial version I sent of the pass worked, but I apparently
failed to verify that the simplified version in v2 actually worked.
With the obvious fix applied (so we actually tried to move
load_interpolated_input intrinsics), I discovered a second bug: we
weren't moving the offset SSA def to the top, breaking SSA validation.
The new version of the pass actually moves load_interpolated_input
intrinsics and all their dependencies, as intended.
Papers over GPU hangs on Ivybridge and Baytrail caused by the
recent NIR FS input rework by restoring the old behavior.
(I'm not honestly sure why they hang with PLN not at the top.)
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97083
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
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We always resort to the pull model for instanced GS inputs. So, we'd
better include the VUE handles, or else we can't actually pull anything.
Ian reports that on his branch with OES_geometry_shader enabled,
this fixes a bunch of dEQP-GLES31.functional.geometry_shading tests::
- instanced.draw_2_instances_geometry_2_invocations
- instanced.draw_2_instances_geometry_8_invocations
- instanced.draw_4_instances_geometry_2_invocations
- instanced.draw_4_instances_geometry_8_invocations
- instanced.draw_8_instances_geometry_2_invocations
- instanced.draw_8_instances_geometry_8_invocations
- instanced.geometry_2_invocations
- instanced.geometry_32_invocations
- instanced.geometry_8_invocations
- instanced.geometry_max_invocations
- instanced.geometry_output_different_2_invocations
- instanced.geometry_output_different_32_invocations
- instanced.geometry_output_different_8_invocations
- instanced.geometry_output_different_max_invocations
- instanced.invocation_output_vary_by_attribute
- instanced.invocation_output_vary_by_texture
- instanced.invocation_output_vary_by_uniform
- query.primitives_generated_instanced
Cc: mesa-stable@lists.freedesktop.org
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Tested-by: Ian Romanick <ian.d.romanick@intel.com>
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We will use this for output varyings. To make component
packing simpler we will just treat all varyings as vec4s.
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
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We no longer use this message. As far as I can tell, it's fairly
useless - the equivalent information is provided in the payload.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Chris Forbes <chrisforbes@google.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
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This eliminates the need to walk the list of input variables, recurse
into their types (via logic largely redundant with nir_lower_io), and
interpolate all possible inputs up front. The backend no longer has
to care about variables at all, which eliminates complications from
trying to pack multiple variables into the same location. Instead,
each intrinsic specifies exactly what's needed.
This should unblock Timothy's work on GL_ARB_enhanced_layouts.
Each load_interpolated_input intrinsic corresponds to PLN instructions,
while load_barycentric_at_* intrinsics correspond to pixel interpolator
messages. The pixel/centroid/sample barycentric intrinsics simply refer
to payload fields (delta_xy[]), and don't actually generate any code.
Because we use a single intrinsic for both centroid-qualified variables
and interpolateAtCentroid(), they become indistinguishable. We stop
sending pixel interpolator messages for those, and instead use the
payload provided data, which should be considerably faster.
On Broadwell:
total instructions in shared programs: 9067751 -> 9067570 (-0.00%)
instructions in affected programs: 145902 -> 145721 (-0.12%)
helped: 422
HURT: 209
total spills in shared programs: 2849 -> 2899 (1.76%)
spills in affected programs: 760 -> 810 (6.58%)
helped: 0
HURT: 10
total fills in shared programs: 3910 -> 3950 (1.02%)
fills in affected programs: 617 -> 657 (6.48%)
helped: 0
HURT: 10
LOST: 3
GAINED: 3
The differences mostly appear to be slight changes in MOVs.
v2: Use nir_shader_compiler_options::use_interpolated_input_intrinsics
flag rather than passing it directly to nir_lower_io. Use the
unreachable() macro rather than assert in one place. (Review
feedback from Chris Forbes.)
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Chris Forbes <chrisforbes@google.com>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
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Currently, i965 interpolates all FS inputs at the top of the program.
This has advantages and disadvantages, but I'd like to keep that policy
while reworking this code. We can consider changing it independently.
The next patch will make the compiler generate PLN instructions "on the
fly", when it encounters an input load intrinsic, rather than doing it
for all inputs at the start of the program.
To emulate this behavior, we introduce an ugly pass to move all NIR
load_interpolated_input and payload-based (not interpolator message)
load_barycentric_* intrinsics to the shader's start block.
This helps avoid regressions in shader-db for cases such as:
if (...) {
...load some input...
} else {
...load that same input...
}
which CSE can't handle, because there's no dominance relationship
between the two loads. Because the start block dominates all others,
we can CSE all inputs and emit PLNs exactly once, as we did before.
Ideally, global value numbering would eliminate these redundant loads,
while not forcing them all the way to the start block. When that lands,
we should consider dropping this hacky pass.
Again, this pass currently does nothing, as i965 doesn't generate these
intrinsics yet. But it will shortly, and I figured I'd separate this
code as it's relatively self-contained.
v2: Dramatically simplify pass - instead of creating new instructions,
just remove/re-insert their list nodes (suggested by Jason Ekstrand).
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Chris Forbes <chrisforbes@google.com> [v1]
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
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When working with a non-multisampled render target, asking for "sample"
interpolation locations doesn't make sense. We demote them to centroid.
In a couple of patches, brw_compute_barycentric_modes will begin looking
at these intrinsics to determine the barycentric modes. fs_visitor also
will use them to code-generate pixel interpolator messages or payload
references. Handling the "but what if it's not MSAA?" logic ahead of
time in a NIR pass simplifies things and prevents duplicated logic.
This patch doesn't actually do anything useful yet as we don't generate
these intrinsics. I decided to keep it separate as it's self-contained,
in the hopes of shrinking the "convert everything" patch for reviewers.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Chris Forbes <chrisforbes@google.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
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Previously SHADER_OPCODE_MULH could only exist on Gen7+, so the
assertion assumed the Gen7+ accumulator rules. A future patch will
allow this instruction on at least Gen6, so update the assertion.
v2: Use get_lowered_simd_width instead of open coding it. Suggested by
Curro.
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com> [v1]
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This patch makes emit_general_interpolation take a destination register
as an argument, and write directly to that. This is simpler than the
old approach of ralloc'ing a register, writing to that temporary, and
then making the caller emit per-component MOVs to copy it to the actual
destination.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>
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The unlit centroid workaround starts being necessary on Gen6, which
is the first platform with multisampling. PLN exists on G45+, so all
platforms which need this workaround have PLN.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>
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glsl_to_nir always produces a system value for gl_FrontFacing, rather
than an input. So there should never be an input with this slot,
making this code dead.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>
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Likewise, rename the enum type to glsl_interp_mode.
Beyond the GLSL front-end, talking about "interpolation modes" seems
more natural than "interpolation qualifiers" - in the IR, we're removed
from how exactly the source language specifies how to interpolate an
input. Also, SPIR-V calls these "decorations" rather than "qualifiers".
Generated by:
$ find . -regextype egrep -regex '.*\.(c|cpp|h)' -type f -exec sed -i \
-e 's/INTERP_QUALIFIER_/INTERP_MODE_/g' \
-e 's/glsl_interp_qualifier/glsl_interp_mode/g' {} \;
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Acked-by: Dave Airlie <airlied@redhat.com>
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Rather than computing the barycentric mode each time we emit a LINTERP,
we can simply compute it once, as soon as we know we're doing non-flat
interpolation.
At that point, emit_linterp() doesn't do much, so fold it into the
call sites and drop it.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
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A bit tidier.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
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This combines two copies of basically the same code.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
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brw_wm_barycentric_interp_mode is wordy, brw_barycentric_mode is less
typing and suffers from fewer line wrapping problems.
The enum values themselves don't really benefit from "WM" in the name,
either. Put "BARYCENTRIC" first instead of at the end and drop "WM".
Generated by:
for file in *.c *.cpp *.h; do sed -i \
-e 's/brw_wm_barycentric_interp_mode/brw_barycentric_mode/g' \
-e 's/BRW_WM_\([A-Z_]*\)_BARYCENTRIC/BRW_BARYCENTRIC_\1/g' \
-e 's/BRW_WM_BARYCENTRIC_INTERP_MODE_COUNT/BRW_BARYCENTRIC_MODE_COUNT/g' \
$file;
done
with a few whitespace changes.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
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This consolidates a bunch of hacks in a single place - by setting
the interpolation modes and locations on variables appropriately,
we can simply trust them in the rest of the code. This avoids
having to handle INTERP_QUALIFIER_NONE, gl_Color overrides,
sample-shading overrides, and Gen4-5 centroid-overrides in a bunch
of places.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
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So that we can have gen7 split large writes produced by this lowering pass.
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
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So that we can have gen7 split large writes produced by the pack lowering.
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
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In fp64 we can produce code like this:
mov(16) vgrf2<2>:UD, vgrf3<2>:UD
That our simd lowering pass would typically split in instructions with a
width of 8, writing to two consecutive registers each. Unfortunately, gen7
hardware has a bug affecting execution masking and as a result, the
second GRF register write won't work properly. Curro verified this:
"The problem is that pre-Gen8 EUs are hardwired to use the QtrCtrl+1
(where QtrCtrl is the 8-bit quarter of the execution mask signals
specified in the instruction control fields) for the second
compressed half of any single-precision instruction (for
double-precision instructions it's hardwired to use NibCtrl+1,
at least on HSW), which means that the EU will apply the wrong
execution controls for the second sequential GRF write if the number
of channels per GRF is not exactly eight in single-precision mode (or
four in double-float mode)."
In practice, this means that we cannot write more than one
consecutive GRF in a single instruction if the number of channels
per GRF is not exactly eight in single-precision mode (or four
in double-float mode).
This patch makes our SIMD lowering pass split this kind of instructions
so that the split versions only write to a single register. In the
example above this means that we split the write in 4 instructions, each
one writing 4 UD elements (width = 4) to a single register.
v2 (Curro):
- Make explicit that the thing about hardwiring NibCtrl+1 for the second
compressed half is known to happen in Haswell and the issue with IVB
might not be exactly the same.
- Assign max_width instead of returning early so that we can handle
multiple restrictions affecting to the same instruction.
- Avoid division by 0 if the instruction does not write any registers.
- Ignore instructions what have WE_all set.
- Use the instruction execution type size instead of the dst type size.
v3 (Curro):
- Move the implementation down so it is not placed in the middle of another
workaround.
- Declare channels_per_grf as const.
- Don't break the loop early if we find a BAD_FILE source.
- Fix the number of channels that the hardware shifts for the second half
of a compressed instruction to be 8 in single precision and 4 in double
precision.
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
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This was useful when debugging the previous commit's issue.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
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These only exist post-Sandybridge, and always use send-from-GRF.
So inst->base_mrf will be -1, and we will have already returned 0.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Reviewed-by: Matt Turner <mattst88@gmail.com>
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These are now unnecessary, as base_mrf is -1 by default.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Reviewed-by: Matt Turner <mattst88@gmail.com>
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On MRF platforms, we need to set base_mrf to the first MRF value we'd
like to use for the message. On send-from-GRF platforms, we set it to
-1 to indicate that the operation doesn't use MRFs.
As MRF platforms are becoming increasingly a thing of the past, we've
forgotten to bother with this. It makes more sense to set it to -1 by
default, so we don't have to think about it for new code.
I searched the code for every instance of 'mlen =' in brw_fs*cpp, and
it appears that all MRF-based messages correctly program a base_mrf.
Forgetting to set base_mrf = -1 can confuse the register allocator,
causing it to think we have a large fake-MRF region. This ends up
moving the send-with-EOT registers earlier, sometimes even out of
the g112-g127 range, which is illegal. For example, this fixes
illegal sends in Piglit's arb_gpu_shader_fp64-layout-std430-fp64-shader,
which had SSBO messages with mlen > 0 but base_mrf == 0.
Cc: mesa-stable@lists.freedesktop.org
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Reviewed-by: Matt Turner <mattst88@gmail.com>
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Clean up misrepetitions ('if if', 'the the' etc) found throughout the
comments. This has been done manually, after grepping
case-insensitively for duplicate if, is, the, then, do, for, an,
plus a few other typos corrected in fly-by
v2:
* proper commit message and non-joke title;
* replace two 'as is' followed by 'is' to 'as-is'.
v3:
* 'a integer' => 'an integer' and similar (originally spotted by
Jason Ekstrand, I fixed a few other similar ones while at it)
Signed-off-by: Giuseppe Bilotta <giuseppe.bilotta@gmail.com>
Reviewed-by: Chad Versace <chad.versace@intel.com>
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Previously, we were incrementing length but not actually putting anything
in the Y coordinate. This meant that 1-D TXF operations had a garbage
array index. If the surface is emitted as 1-D non-array, the coordinate
gets discarded and it works fine. If it happens to be bound as an array
surface, it may count as an out-of-bounds array access and you get zero.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Cc: "11.1 11.2 12.0" <mesa-stable@lists.freedesktop.org>
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Cc: "12.0" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
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Cherryview and Broxton don't support DW x DW multiplication. We have
piles of code to handle this, but apparently weren't retyping in the
immediate case.
For example,
tests/spec/arb_tessellation_shader/execution/dvec3-vs-tcs-tes
makes the simulator angry about instructions such as:
mul(8) r18<1>:D r10.0<8;8,1>:D 0x00000003:D
Just retype to W or UW. It should be safe on all platforms.
Cc: "12.0" <mesa-stable@lists.freedesktop.org>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=95462
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
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type_size_vec4_times_4() was introduced as a fix in 8dcf807cb43383
however since 3810c1561 we can just use type_size_scalar() and
get the actual number of outputs we need.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
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ISTR having suggested this during review of the recent FP64 changes to
the SIMD lowering pass, but it doesn't look like it was taken into
account in the end. Using the fs_reg::component_size helper instead
of this open-coded variant makes sure that the stride is taken into
account correctly. Fixes at least the following piglit tests with
spilling forced on (since otherwise regs_written would be calculated
incorrectly and the spilling code would be rather confused about how
much data needs to be spilled):
spec.arb_gpu_shader_fp64.shader_storage.layout-std140-fp64-shader
spec.arb_gpu_shader_fp64.shader_storage.layout-std140-fp64-mixed-shader
Cc: <mesa-stable@lists.freedesktop.org>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
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