This code in brw_set_dest adjusts the execution size of any instruction
with a dst.width < 8. However, we don't want to do this with instructions
operating on doubles, since these will have a width of 4, but still
need an execution size of 8 (for SIMD8). Unfortunately, we can't just check
the size of the operands involved to detect if we are doing an operation on
doubles, because we can have instructions that do operations on double
operands interpreted as UD, operating on any of its 2 32-bit components.
Previous commits have made it so we never emit instructions with a horizontal
width of 4 that don't have the correct execution size set for gen6+, so
we can skip it in this case, avoiding the conflicts with fp64 requirements.
Expanding the same fix to other hardware generations requires many more
changes but since we are not targetting fp64 support on them
wer don't really care for now.
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
v2 (Topi):
- No need to set the execsize for the indirect send message,
the next patch will handle that.
- Set the execution size explicitly instead of taking it from
the width of the dst that we set before.
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Previously, we gave our internal clear/blit shaders actual GL handles
and stored them in the shader/program hash table. We used ordinary
GL API entrypoints to work with them.
We thought this shouldn't be a problem because GL doesn't allow
applications to invent their own names for shaders or programs.
GL allocates all names via glCreateShader and glCreateProgram.
However, having them in the hash table is a bit risky: if a broken
application guesses the name of our shaders or programs, it could
alter them, potentially screwing up future meta operations.
Also, test cases can observe the programs in the hash table. Running
a single dEQP process that executes the following test list:
dEQP-GLES3.functional.negative_api.buffer.clear
dEQP-GLES3.functional.negative_api.shader.compile_shader
dEQP-GLES3.functional.negative_api.shader.delete_shader
would result in the last two tests breaking. The compile_shader test
calls glCompileShader(9) straight away, and since it hasn't even created
any shaders or programs, it expects to get a GL_INVALID_VALUE error
because there's no such name. However, because the clear test ran
first, it created Meta programs, so an object named "9" did exist.
This patch reworks Meta to work with gl_shader and gl_shader_program
pointers directly. These internal programs have bogus names, and are
never stored in the hash tables, so they're invisible to applications.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=94485
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
This will allow me to use them directly from Meta, bypassing the
versions that work with GL integer handles.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>
In half the callers, we already have a pointer, and don't need
to look it up again. This will also help with upcoming meta work.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>
In half the callers, we already have a pointer, and don't need
to look it up again. This will also help with upcoming meta work.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>
Now that the field exists in the instruction, we can make discards less
special. As a bonus, that means that we should be able to merge some more
.sf instructions together when we get around to that.
This causes some scheduling changes, as it allows tlb_color_reads to be
delayed past the discard condition setup. Since the tlb_color_read ends
up later, this may mean performance improvements, but I haven't tested.
total instructions in shared programs: 78114 -> 78035 (-0.10%)
instructions in affected programs: 1922 -> 1843 (-4.11%)
total estimated cycles in shared programs: 234318 -> 234329 (0.00%)
estimated cycles in affected programs: 8200 -> 8211 (0.13%)
The register allocator doesn't really do anything about the temp, so it
doesn't seem like it should matter. However, the scheduler would think
that a new def is being created.
This doesn't change anything yet, but it avoids a bunch of regressions in
the next commit.
This is cleaner than using glBindAttribLocation().
Not all drivers support the extension, but I don't think those drivers
use GLSL in the first place. Apparently some Meta shaders already use
GL_ARB_explicit_attrib_location, so I think it should be okay.
Honestly, I'm not sure how the old code worked anyway - we bound the
attribute location for "texcoords", while all the shaders capitalized
or spelled it differently.
v2: Convert another instance in brw_meta_fast_clear.c.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
When a user defines a point size array and enables it, the point
size value set via glPointSize should be ignored. To achieve this,
we can simply toggle ctx->VertexProgram.PointSizeEnabled.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=42187
Signed-off-by: Plamena Manolova <plamena.manolova@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This is done instead of copy propagating the VPM reads into the
instructions using them, because VPM reads have to stay in order.
shader-db results:
total instructions in shared programs: 78509 -> 78114 (-0.50%)
instructions in affected programs: 5203 -> 4808 (-7.59%)
total estimated cycles in shared programs: 234670 -> 234318 (-0.15%)
estimated cycles in affected programs: 5345 -> 4993 (-6.59%)
Signed-off-by: Varad Gautam <varadgautam@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Tested-by: Rhys Kidd <rhyskidd@gmail.com>
This file will contain optimization passes for both vpm reads
and writes.
Signed-off-by: Varad Gautam <varadgautam@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Some rasterization code relies (for sse) on the first and third planes
(but not the second for now) being 128bit aligned, and we didn't get that
on 32bit - I mistakenly thought the 64bit number in the struct would get
the thing aligned to 64bit even on 32bit archs.
Stephane Marchesin really figured this out.
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
CC: <mesa-stable@lists.freedesktop.org>
The logic was comparing actual ints, not true/false values.
This meant that it was emitting always multiple line segments instead of just
one even if the stipple test had the same result, which looks inefficient, and
the segments also overlapped thus breaking line aa as well.
(In practice, with the no-op default line stipple pattern, for a 10-pixel
long line from 0-9 it was emitting 10 segments, with the individual segments
ranging from 0-1, 0-2, 0-3 and so on.)
This fixes https://bugs.freedesktop.org/show_bug.cgi?id=94193
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
CC: <mesa-stable@lists.freedesktop.org>
All these img filter loops iterate through NUM_CHANNELS, not QUAD_SIZE.
In practice both are of course the same unchangeable value (4), but it
makes the code look a bit confusing. Moreover, some of the functions were
actually given an array of 4 values according to the declaration, yet the
code was addressing values 0/4/8/12 out of it, so fix this by just saying
it's a pointer to floats like the other functions.
While here, also add comment about not quite correct filtering.
There's no actual code difference.
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
The filt_args->offset wasn't assigned but was always used later leading
to a crash (as far as I can tell, texel offsets don't actually make much
sense with anisotropic filtering, but because there's no explicit setting
if offsets are enabled there the array is always accessed).
This fixes https://bugs.freedesktop.org/show_bug.cgi?id=94481
Reviewed-by: Eduardo Lima Mitev <elima@igalia.com>
CC: <mesa-stable@lists.freedesktop.org>
This allows drivers to make smarter decisions e.g. about whether the image
has to be decompressed.
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This is required to preserve the image variable's coherent/restrict/volatile
qualifiers in TGSI.
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Frontends should have this information readily available, and it simplifies
image LOAD/STORE/ATOM* handling especially with indirect image access.
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
The enums MAX_COMBINED_IMAGE_UNITS_AND_FRAGMENT_OUTPUTS and
MAX_COMBINED_SHADER_OUTPUT_RESOURCES are equal and should therefore only
appear once.
Noticed while implementing ARB_shader_image_load_store without previously
implementing SSBO.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Should have no functional change. The IP value of an instruction that
reads src_var cannot possibly be after the end of the live interval of
the variable it's reading from, by the definition of live interval.
Might save future readers a momentary WTF while trying to understand
this code.
Reviewed-by: Matt Turner <mattst88@gmail.com>
Bug found by the liveness analysis validation pass that will be
introduced in a later commit. The no-op MOV check in
opt_register_coalesce() was removing instructions which makes the
cached liveness analysis calculation inconsistent with the shader IR.
We were failing to set progress to true in that case though, which
means that invalidate_live_intervals() wouldn't necessarily be called
at the end of the function.
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Matt Turner <mattst88@gmail.com>
Bug found by the liveness analysis validation pass that will be
introduced in a later commit. fixup_3src_null_dest() was allocating
registers which makes the cached liveness analysis calculation
incomplete, so it must be invalidated.
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Matt Turner <mattst88@gmail.com>
Bug found by the liveness analysis validation pass that will be
introduced in a later commit. opt_sampler_eot() was allocating
registers and inserting and removing instructions, which makes the
cached liveness analysis calculation inconsistent with the shader IR,
so it must be invalidated.
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Matt Turner <mattst88@gmail.com>
After pipe_grid_info.indirect was introduced, clover was not modified
to set it causing it to pass uninitialized memory for it to launch_grid.
This commit fixes this by zero-ing the entire pipe_grid_info struct when
declaring it, to avoid similar problems popping-up in the future.
Cc: "11.2" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
[ Francisco Jerez: Trivial codestyle fix. ]
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
This should help the next person working on hardware enabling figure out
where in the Intel PRMs to find the magic platform hardware values.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
When reading the source code, it's useful to indicate that a group of
fields in a struct are related in someway. There were several places
where people tried to group related structure members with the {@
syntax, without realizing they also needed to add the \name syntax in
order to generate correct doxygen html.
There are several files with groupings that look like this:
struct foo {
/**
* Related fields description
* @{
*/
int bar;
char baz;
/** @} */
long qux;
}
However, the doxygen syntax for grouping is:
struct foo {
/**
* \name Related fields description
* @{
*/
int bar;
char baz;
/** @} */
long qux;
}
https://www.stack.nl/~dimitri/doxygen/manual/grouping.html
Without the group name definition, the fields don't get properly
grouped. Instead, the group description is applied to the first field.
Fix the Intel hardware information structure, brw_device_info to
properly group the GPU hardware limitations and hardware quirks fields.
Once you've run `cd doxygen; make clean; make all`,
updated documentation can be found at
mesa/doxygen/i965/structbrw__device__info.html
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Better tracking of resource state and synchronization.
A follow on commit will clean up resource functions into a new
swr_resource.cpp file.
Reviewed-By: George Kyriazis <george.kyriazis@intel.com>
From the point it's constructed the CFG contains the only existing
copy of the program IR, and it never becomes invalid. Calling
backend_shader::invalidate_cfg would have destroyed the program
structure irrecoverably -- We weren't calling it at all for a good
reason.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org
Reviewed-by: Matt Turner <mattst88@gmail.com>
Jordan Justen
Iago Toral Quiroga
Samuel Iglesias Gonsalvez
Kenneth Graunke
Eric Anholt
Plamena Manolova
Varad Gautam
Roland Scheidegger
Nicolai Hähnle
Francisco Jerez
Hans de Goede
Sarah Sharp
Bruce Cherniak
Marek Olšák
Pierre Moreau