It was passing an encoding of the two that wasn't good for ensuring "Don't
combine loads that would make us straddle a vec4 boundary" for
nir_lower_ubo_vec4.
Reviewed-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6612>
v2: Restore the gen == 10 hunk in brw_compile_vs (around line 2940).
This function is also used for scalar VS compiles. Squash in:
intel/vec4: Reindent after removing Gen8+ support
intel/vec4: Silence unused parameter warning in try_immediate_source
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net> [v1]
Reviewed-by: Matt Turner <mattst88@gmail.com> [v1]
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> [v1]
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6826>
Since dd7135d55d ("intel/compiler: Use the flrp lowering pass for all
stages on Gen4 and Gen5"), it's not possible to get to this function on
GPUs that don't have a LRP instruction.
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6826>
Scratch stores are being lowered to the instructions with side-effects,
however they should be enabled in fs helper invocations, since they
are produced from operations which don't imply side-effects.
To fix this - we move the decision of whether the sample mask predication
is enable to the point where logical brw instructions are created.
GLSL example of the issue:
int tmp[1024];
...
do {
// changes to tmp
} while (some_condition(tmp))
If `tmp` is lowered to scrach memory, `some_condition` would be
undefined if scratch write is predicated on sample mask, making
possible for the while loop to become infinite and hang the GPU.
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/3256
Fixes: 53bfcdeecf
Signed-off-by: Danylo Piliaiev <danylo.piliaiev@globallogic.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6056>
This reverts commit 939ddf3f67.
Intel has a separate pass for fusing FFMAs selectively. We split
these flags in commit 1b72c31e1f and
the reasoning still stands. The patch being reverted was just a
cleanup, so there should be no issue with reverting it.
Acked-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6849>
This makes it explicit that this intrinsic is only for SSBOs. For the
v3dv driver, we'll be adding a get_ubo_size intrinsic and we want to be
able to distinguish between the two.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6812>
It's not really unordered in the sense that it can still stall on
ordered things and we don't need a SYNC_NOP for that because it is a
SYNC_NOP. However, it also doesn't count when computing instruction
distances.
Fixes: 18e72ee210 "intel/fs: Add FS_OPCODE_SCHEDULING_FENCE"
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6781>
Coverity complains about possible out-of-bounds write & read, because
it thinks that "loc + i" can be bigger than sizes of the 2 used arrays.
It's not obvious from the code it cannot happen, so add asserts here.
Signed-off-by: Marcin Ślusarz <marcin.slusarz@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6667>
These variables seem to be initialized before being used, so this
patch is not fixing any bug, but leaving them unitialized may become
a bug after some refactoring.
These classes were affected: fs_reg_alloc, fs_visitor, fs_generator,
instruction_scheduler.
Found by Coverity.
Signed-off-by: Marcin Ślusarz <marcin.slusarz@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6667>
brw_compile_gs and brw_compile_tcs are extern C functions, but are
defined inside of brw namespace, which somehow works but confuses
Eclipse CDT's code analysis.
Move these functions out of brw namespace and fix references to
objects from brw namespace.
Signed-off-by: Marcin Ślusarz <marcin.slusarz@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6602>
This also fixes the inverted last parameter of nir_lower_flrp in most drivers.
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6599>
Instead, we do a limited indirect deref lowering and then use
nir_lower_vars_to_explicit_types and nir_lower_explicit_io to lower it
as if it were SSBO or global memory access. Among other things, this
should enable pointer arithmetic on local variables. Fun!
The only shader-db change from this change on ICL was a few tiny cycle
count changes in 7 Aztec Ruins compute shaders.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5909>
Instead of always lowering everything, we add a threshold such that if
the total indirected array size (AoA size) is above that threshold, it
won't lower. It's assumed that the driver will sort things out somehow
by, for instance, lowering to scratch.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5909>
Since everything flows through NIR and we're doing all of our indirect
deref lowering there now, there's no reason to keep making those
decisions in brw_compiler and stuffing them in the GLSL compiler
structs.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5909>
There's no good reason to split this into three. Sure, CS indirects are
only guaranteed by the spec to be DWORD aligned, but that's all untyped
surface reads require anyway.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6570>
This can come up if, for instance, the shader does a derivative of a
uniform or flat input. Ideally, NIR would use divergence analysis to
get rid of the derivative in this case but it doesn't right now. This
fixes a crash in F1 2017.
Cc: mesa-stable@lists.freedesktop.org
Reported-by: Marcin Ślusarz <marcin.slusarz@intel.com>
Tested-by: Marcin Ślusarz <marcin.slusarz@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6564>
With discrete GPUs, it's going to be possible to have GPUs from two
different hardware generations in the machine at the same time. Global
singletons like this aren't going to fly. Have a struct containing the
pointers which gets initialized once per shader disassemble instead.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6244>
WAIT takes a notification register as a destination and a src0 argument.
Since the same notification register is specified in both fields, we
treat it as a special case and disassemble it only once.
If we disassemble it as if it is a source register, its scalar region
will be printed as <0,1,0>. This causes difficulties round-tripping
through the assembler <-> disassembler because that is not an acceptable
destination region. If we instead disassemble the destination, we
instead get a <1> region which is an acceptable and equivalent region
for source and destination.
The test .asm files are regenerated by round-tripping them through the
assembler/disassembler. Note that the <0> region in the tests was a
harmless mistake: the compiler translated it to a <0,1,0> source region
and a <1> destination region, since <0> isn't valid.
Reviewed-by: Sagar Ghuge <sagar.ghuge@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6543>
Other tests use the same environment variable to decide whether they
should print debugging information.
Will quiet Coverity's "'Constant' variable guards dead code".
Signed-off-by: Marcin Ślusarz <marcin.slusarz@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6126>
Shader instructions which use UIP/JIP now get formatted with a label
in addition with immediate value, labels have "LABEL%d" format.
v2: - Consider brw_jump_scale when calculating label's offset
From: "Lonnberg, Toni" <toni.lonnberg@intel.com>
Signed-off-by: Danylo Piliaiev <danylo.piliaiev@globallogic.com>
Reviewed-by: Sagar Ghuge <sagar.ghuge@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4245>
Pre-work for shader disassembly label support.
Introduction of the structures and functions used by the shader disassembly
jump target labeling.
From: "Lonnberg, Toni" <toni.lonnberg@intel.com>
Signed-off-by: Danylo Piliaiev <danylo.piliaiev@globallogic.com>
Reviewed-by: Sagar Ghuge <sagar.ghuge@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4245>
