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This shockingly ended up working out, because only the first byte of *sig
is used and (sizeof(*sig) != 0) == 1. Fixes a compiler warning.
Link: https://bugs.freedesktop.org/show_bug.cgi?id=104183
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The v3d_qpu_writes_r*() were only checking for fixed-function accumulator
writes, not normal ALU writes to those regs.
Fixes fs-discard-exit-2 on simulation (but not HW).
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I typoed and was depending on v3d_xml.h (the gzipped xml)_, not on the
v3d_packet_v33_pack.h that the compiler and QPU packing actually use.
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v2: Default vc5 to off, since it requires the simulator currently. Add
missing dep on the XML generation from libbroadcom_vc5.
Reviewed-by: Dylan Baker <[email protected]> (v1)
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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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