From the hardware docs for the DO instruction:
"Execution size is ignored for this instruction."
My observation on ILK hardware contradicts the spec though, channels
over the execution size of a DO instruction won't enter the loop, and
channels over the execution size of a WHILE instruction will exit the
loop after the first iteration -- The latter is consistent with the
spec though, there's no claim about the execution size being ignored
for the WHILE instruction so it's not completely unexpected that it
has an influence on the evaluation of EMask.
The execute_size argument of brw_DO() shouldn't have any effect on
Gen6 and newer hardware. On Gen4-5 WHILE instructions inherit the
execution size from the matching DO, so this patch should fix them
too. The execution size of BREAK and CONT instructions was already
being set correctly.
Fixes some 50 piglit tests on Gen4-5 when forced to run shaders with
conditional and loop instructions 16-wide,
e.g. shaders/glsl-fs-continue-inside-do-while.
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
The hardware docs don't mention explicitly what these fields should
be, but I've verified experimentally on ILK that using a GRF as
destination causes the register to be corrupted when the execution
size of an ENDIF instruction is higher than 8 -- and because the
destination we were using was g0, eventually a hang.
Fixes some 150 piglit tests on Gen4-5 when forced to run shaders with
if conditionals 16-wide, e.g. shaders/glsl-fs-sampler-numbering-3.
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This eliminates the error prone logic in si_shader_vs recalculating this
value.
It also fixes TGSI_SEMANTIC_CLIPDIST outputs incorrectly not being
counted for VS exports. They need to be counted because they are passed
to the pixel shader as parameters as well.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=91193
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
The expansion should always be to the same width as the input arguments
no matter what, since these functions should work with any bit width of
the arguments (the sext is a no-op on any sane simd architecture).
Thus, fix the caller expecting differently.
This fixes https://bugs.freedesktop.org/show_bug.cgi?id=91222
Tested-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
In the kernel, this is called __must_check; all our attribute macros in
Mesa appear to be uppercase, so I went with that.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Matt Turner <mattst88@gmail.com>
In this bit of code point_five can be NULL if the expression is not a
constant. This fixes it to match the pattern of the rest of the chunk
of code so that it checks for NULLs.
Cc: Matt Turner <mattst88@gmail.com>
Cc: "10.6" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
There is a piece of code that is trying to match expressions of the
form (mul (floor (add (abs x) 0.5) (sign x))). However the check for
the add expression wasn't checking whether it had the expected
operation. It looks like this was just an oversight because it doesn't
match the pattern for the rest of the code snippet. The existing line
to check whether add_expr!=NULL was added as part of a coverity fix in
3384179f.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=91226
Cc: Matt Turner <mattst88@gmail.com>
Cc: "10.6" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Ben noticed that I said each PIPE_CONTROL was 4 DWords, but it's
actually 5 DWords on Gen6-7. We've been reserving insufficient space
for performance monitoring on Sandybridge, which means it would likely
break if you used that functionality. (Thankfully, no one does...)
Also, the existing number of 146 was the result of me flubbing up the
arithmetic: it should have actually been 140.
Cc: mesa-stable@lists.freedesktop.org
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
On Gen9+ there is a new bit in 3DSTATE_PS_EXTRA that must be set if
the shader sends a message to the pixel interpolator. This fixes the
interpolateAt* tests on SKL, apart from interpolateatsample-nonconst
but that is not implemented anywhere so it's not a regression.
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "10.6 10.5" <mesa-stable@lists.freedesktop.org>
Absolute timeouts are used with the amdgpu kernel driver.
It also makes waiting for several variables and fences at the same time
easier (the timeout doesn't have to be recalculated after every wait call).
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
This will be used by radeon and amdgpu winsyses.
Copied from the amdgpu winsys.
v2: use volatile and p_atomic_read
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Cc: 10.6 10.5 <mesa-stable@lists.freedesktop.org>
Acked-by: Christian König <christain.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Assigns a new array type based on the max access of
unsized array members. This is to support arrays of arrays.
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
The first argument to UCMP needs to be compared against 0, but the
latter arguments are treated as float and need to be able to properly
apply neg/abs arguments. Adjust the inferSrcType function accordingly.
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: "10.5 10.6" <mesa-stable@lists.freedesktop.org>
After c61bc6e ("util: port _mesa_strto[df] to C"), "make check"
fails due to a missing _mesa_locale_init. Fixup this oversight,
by moving the stand-alone compiler initializer inside
initialize_context_to_defaults().
Reviewed-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Same problem and fix as for nouveau's ZaphodHeads trouble.
See patch ...
"nouveau: Use dup fd as key in drm-winsys hash table to fix ZaphodHeads."
... for reference.
Cc: "10.3 10.4 10.5 10.6" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
If an instruction using address register value gets eliminated, we need
to remove it from the indirects list, otherwise it causes mayhem in
sched for scheduling address register usage.
Signed-off-by: Rob Clark <robclark@freedesktop.org>
A handful of fixes and cleanups:
1) If we split addr/pred, we need the newly created instruction to
end up in the unscheduled_list
2) Avoid scheduling a write to the address register if there is no
instruction using the address register that is otherwise ready
to schedule. Note that I currently don't bother with the same
logic for predicate register, since the only instructions using
predicate (br/kill) don't take any other src registers, so this
situation should not arise.
3) few other cosmetic cleanups
Signed-off-by: Rob Clark <robclark@freedesktop.org>
cp would update instr->address but not update the indirects array
resulting in sched getting confused when it had to 'spill' the address
register. Add an ir3_instr_set_address() helper to set instr->address
and also update ir->indirects, and update all places that were writing
instr->address to use helper instead.
Signed-off-by: Rob Clark <robclark@freedesktop.org>
We need to distinguish a shader that has separate writes to each MRT
from one which is supposed to write the data from MRT 0 to all the MRTs.
In TGSI this is done with a property. NIR doesn't have that, so encode
it as a funny location and decode on the other end.
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Eric Anholt <eric@anholt.net>
There was a comment saying that in SIMD16 mode the pixel interpolator
returns coords interleaved 8 channels at a time and that this requires
extra work to support. However, this interleaved format is exactly
what the PLN instruction requires so I don't think anything needs to
be done to support it apart from removing the line to disable it and
to ensure that the message lengths for the send message are correct.
I am more convinced that this is correct because as it says in the
comment this interleaved output is identical to what is given in the
thread payload. The code generated to apply the plane equation to
these coordinates is identical on SIMD16 and SIMD8 except that the
dispatch width is larger which implies no special unmangling is
needed.
Perhaps the confusion stems from the fact that the description of the
PLN instruction in the IVB PRM seems to imply that the src1 inputs are
not interleaved so it wouldn't work. However, in the HSW and BDW PRMs,
the pseudo-code is different and looks like it expects the interleaved
format. Mesa doesn't seem to generate different code on IVB to
uninterleave the payload registers and everything is working so I can
only assume that the PRM is wrong.
I tested the interpolateAt tests on HSW and did a full Piglit run on
IVB on there were no regressions.
Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>
The optimization logic relies on being able to read out constbuf values
from program parameters. However that only works if there's no relative
addressing involved.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=91173
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: "10.5 10.6" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>
When there are no color buffer render targets, gen6 and gen7 still
use the first BLEND_STATE element to determine alpha test.
gen6_upload_blend_state was allocating zero elements when
ctx->Color.AlphaEnabled was false.
That left _3DSTATE_CC_STATE_POINTERS or _3DSTATE_BLEND_STATE_POINTERS
pointing to random data from some previous brw_state_batch().
That sometimes suppressed depth rendering when those bits
happened to mean COMPAREFUNC_NEVER.
This produced flickering shadows for dota2 reborn.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=80500
Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
These checks were in Mesa prior to commit fbba25bba, but they were
not necessary for the purpose that Mesa intended (check if we could
resolve ReadPixels via memcpy), so that commit took them away.
Unfortunately, it seems that some Gallium drivers rely on these
checks to make the decision of whether they should fallback to Mesa's
implementation of ReadPixels correctly. Michel Dänzer reported that
the following piglit test would fail on radeonsi after commit
fbba25bba:
spec@ext_texture_integer@fbo_integer_readpixels_sint_uint
This patch puts the checks back in Gallium, where they are needed.
Tested-by: Michel Dänzer <michel.daenzer@amd.com>
In the immediate form, src2 == dst, so it does not need to be emitted.
Otherwise it overlaps with the immediate value's low bits.
Fixes: 09ee907266 (nv50/ir: Fold IMM into MAD)
Cc: "10.6" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
