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This is a pretty straightforward fork of VC4's NIR compiler to VC5. The
condition codes, registers, and I/O have all changed, making the backend
hard to share, though their heritage is still recognizable.
v2: Move to src/broadcom/compiler to match intel's layout, rename more
"vc5" to "v3d", rename QIR to VIR ("V3D IR") to avoid symbol conflicts
with vc4, use new v3d_debug header, add compiler init/free functions,
do texture swizzling in NIR to allow optimization.
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This will be usable with "VC5_DEBUG=cl" on the vc5 driver to stream a CLIF
file (the Broadcom equivalent of i965's AUB) to stderr. I haven't tested
that this is actually usable with the internal CLIF-consuming tools, but
is close enough as a baseline and is useful for visually inspecting the
command stream.
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Unlike VC4, I've defined an unpacked instruction format with pack/unpack
functions to convert to 64-bit encoded instructions. This will let us
incrementally put together our instructions and validate them in a more
natural way than the QPU_GET_FIELD/QPU_SET_FIELD used to.
The pack/unpack unfortuantely are written by hand. While I could define
genxml for parts of it, there are many special cases (like operand order
of commutative binops choosing which binop is being performed!) and it
probably wouldn't come out much cleaner.
The disasm unit test ensures that we have the same assembly format as
Broadcom's internal tools, other than whitespace changes.
v2: Fix automake variable redefinition complaints, add test to .gitignore
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Unlike vc4, where the compiler and gallium driver live together, for vc5
the compiler will live up in the shared broadcom directory, and need
access to the debug flags. Define a set of debug flags and helpers there,
so it can be shared between compiler, vc5, and vulkan.
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This will be used by the new vc5 gallium driver, and a future Vulkan
driver.
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This is copied from Intel's XML decoder, modified to handle V3D's
byte-oriented packets.
v2: Squash in robher's fixes for Android
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This fixes `make distcheck`
> make[3]: *** No rule to make target 'common/v3d_devinfo.h', needed by 'distdir'. Stop.
> make[3]: Leaving directory '/home/local/mesa/src/broadcom'
> Makefile:945: recipe for target 'distdir' failed
> make[2]: Leaving directory '/home/local/mesa/src'
> make[2]: *** [distdir] Error 1
> make[1]: *** [distdir] Error 1
Fixes: 427bbbb99c ("broadcom: Introduce a header for talking about chip revisions.")
Cc: Emil Velikov <[email protected]>
Signed-off-by: Andres Gomez <[email protected]>
Reviewed-by: Emil Velikov <[email protected]>
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This will be used by the VC5 driver and various shared VC4/VC5 tooling,
like the XML decoder.
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I really liked this idea, as it should help with management of packet
parsing tools like the CL dump. The python script is forked off of theirs
because our packets are byte-based instead of dwords, and the changes to
do so while avoiding performance regressions due to unaligned accesses
were quite invasive.
v2: Fix Android.mk paths, drop shebang for python script, fix overlap
detection.
Acked-by: Jason Ekstrand <[email protected]>
Acked-by: Kenneth Graunke <[email protected]>
Tested-by: Rob Herring <[email protected]>
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