Allow us to parse instructions in a form we currently generate
```
dpas.8x8(8) g55<1>F g47<1,1,0>F g31<1,1,0>HF g39<1,1,0>HF { align1 WE_all 1Q $4 };
```
Regions are not really needed, but this will be handled in a later patch
(that will also stop printing the regions).
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Acked-by: Rohan Garg <rohan.garg@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34031>
We teach lower_logical_sends to lower these to SHADER_OPCODE_SEND
and drop all the corresponding generator and eu_emit code.
Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33297>
Memory fences do not refer to an element of a binding table. Rather,
the reason we had "BTI" in these opcodes was to distinguish what in
modern terms are called UGM (untyped memory data cache) vs. SLM
(cross-thread shared local memory) fences.
Icelake and older platforms used the "data cache" SFID for both
purposes, distinguishing them by having a special binding table
index, 254, meaning "this is actually SLM access". This is where
the notion that fences had BTIs came in. (In fact, prior to Icelake,
separate SLM fences were not a thing, so BTI wasn't used there either.)
To avoid confusion about BTI being involved, we choose a simpler lie: we
have Icelake SLM fences target GFX12_SFID_SLM (like modern platforms
would), even though it didn't really exist back then. Later lowering
code sets it back to the correct Data Cache SFID with magic SLM binding
table index. This eliminates BTI everywhere and an unnecessary source.
Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33297>
We emit it for gfx9, so the assembler should support it too.
Signed-off-by: Sviatoslav Peleshko <sviatoslav.peleshko@globallogic.com>
Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31747>
The LOAD/STORE opcodes take a vector size, while the LOAD/STORE_CMASK
opcodes take a channel mask. The two are mutually exclusive. So we
can just have the lsc_msg_desc() helper take one or the other in the
same parameter. This more closely matches the actual descriptor.
We couldn't do this until the previous commit, since we were previously
relying on the lsc_msg_desc() function to calculate a cmask out of the
number of vector components. But now we don't need it to do that.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Sagar Ghuge <sagar.ghuge@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30632>
The LOAD/STORE opcodes take a vector size (number of components), while
the LOAD/STORE_CMASK opcodes take a channel mask. For some reason, we
were passing a number of channels to lsc_msg_desc(), then using it to
construct a channel mask with all channels enabled, and always using the
CMASK message variants.
Considering we don't actually want to mask off any channels, we should
probably just use the regular LOAD/STORE opcodes, as they're more
flexible anyway.
One exception is that typed messages on Xe2 apparently only support
LOAD_CMASK/STORE_CMASK and not regular LOAD/STORE. So we keep using
those there. (Thanks to Sagar Ghuge for catching this!)
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Sagar Ghuge <sagar.ghuge@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30632>
We'll use the delta for an upcoming internal printf mechanism, where
the PARAM_IDX will be the base printf reloc identifier and the BASE
will be the string id.
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Ivan Briano <ivan.briano@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25814>
We already have a logical opcode and lower to what is basically a send
instruction. We just weren't using SHADER_OPCODE_SEND, instead having
extra redundant infrastructure for no real gain.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28705>
According to the workaround description:
"For all Data Port messages, DP_FLUSH_TYPE should not be
programmed to Discard."
This issue happens only with certain circumstances but as we are not
using discard, add assert and deal with it later if discard is taken in
to use.
Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Sagar Ghuge <sagar.ghuge@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24422>
These fields are overlapping with the ones set by brw_message_desc(),
so the latter should be used instead. This fixes corruption of the
LSC message descriptors when inconsistent values are specified through
both helpers, which can happen if the 'inst->mlen' field is modified
during optimization (e.g. by opt_split_sends()).
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28484>
We cannot rely on the immediate message descriptor having accurate
values for mlen and rlen at the IR level, since they are updated at
codegen time via 'inst->mlen' and 'inst->size_written', which could
end up with values inconsistent with the message descriptor if
e.g. the split sends optimization had an effect. Instead, define
helpers that do the computation without relying on the message
descriptor, and use the pre-existing
brw_message_desc_mlen()/brw_message_desc_rlen() helpers (fully
equivalent to the lsc helpers deleted here) during disassembly.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28484>
Message types are expanded to 6-bit encoding now. 5 bits are still the
same field from the Sampler Message Descriptor. The most significant bit
is now bit 31 of the Sampler Message Descriptor. The messages that have
'1 in bit 6 are only to support programmable offsets and those would
require message header. If a sampler type shows only 5 bits encoding, it
is implied bit 6 equal to 0 and there is no requirement for header.
v2 (idr): Trivial formatting changes.
Signed-off-by: Sagar Ghuge <sagar.ghuge@intel.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27305>
This can be useful for testing i965_disasm and i965_asm by comparing
bin -> asm -> bin results.
Signed-off-by: Sviatoslav Peleshko <sviatoslav.peleshko@globallogic.com>
Reviewed-by: Sagar Ghuge <sagar.ghuge@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25657>
v2: Add brw_ir_performance.cpp and brw_fs_generator.cpp changes. Fix
overlapping register allocation (via has_source_and_destination_hazard). Fix
incorrect destination register file encoding.
v3: Prevent lower_regioning from trying to "fix" DPAS sources.
v4: Add instruction latency information for scheduling and perf
estimates.
v5: Remove all mention of DPASW. Suggested by Curro and Caio. Update
the comment in fs_inst::has_source_and_destination_hazard. Suggested
by Caio.
v6: Add some comments near the src2 calculation in
fs_inst::size_read. Suggested by Caio.
Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25994>
align is a function and when we want use it, the align variable will shadow it
So replace it with other names
Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Reviewed-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25997>
Gives use 4Gb of bindless surface state on Gfx12.5+ instead of 64Mb.
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21645>
The only reason for the separate opcode was because of the overlapping
BRW_AOP_* enums, making it impossible to tell whether a particular AOP
was the integer or float operation. Now that we use the lsc_opcode
enums, we can just have the legacy lowering inspect the opcode and
select the right descriptor. No need for a separate opcode.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Rohan Garg <rohan.garg@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20604>
There are a number of places that need to know how many operands an LSC
atomic takes (0 for inc/dec, 1 for most things, 2 for cmpxchg). We can
add a helper for that and eliminate some code (with more to come).
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Rohan Garg <rohan.garg@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20604>
