History

Alyssa Rosenzweig 2316b80d77 panfrost: Don't use nir_variable to link varyings NIR deemphasizes nir_variable. We want to transition off it. Instead of walking the list of variables and playing games with the GLSL types to collect varying information, walk the list of instructions and use the I/O semantics to collect similar information. In addition to avoiding the reliance on nir_variable, this fixes handling of struct varyings under certain circumstances. Such programs are compiled by the GLES3.1 CTS but not used, so without this fix, the affected tests would regress when precompiling. Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19363>		2022-11-02 16:52:11 +00:00
..
test	pan/bi: Strip negate when lowering swizzles	2022-09-19 17:22:58 +00:00
valhall	pan/va: Add 8-bit integer max assembler case	2022-09-19 17:22:58 +00:00
ISA.xml	…
Notes.txt	…
README.md	…
bi_builder.h.py	…
bi_helper_invocations.c	pan/bi: Add and use bi_foreach_ssa_src macro	2022-09-02 16:03:24 +00:00
bi_layout.c	…
bi_liveness.c	pan/bi: Add and use bi_foreach_ssa_src macro	2022-09-02 16:03:24 +00:00
bi_lower_divergent_indirects.c	…
bi_lower_swizzle.c	pan/bi: Strip negate when lowering swizzles	2022-09-19 17:22:58 +00:00
bi_opcodes.c.py	…
bi_opcodes.h.py	…
bi_opt_constant_fold.c	pan/bi: Assume non-null sources in constant folding	2022-09-02 16:03:23 +00:00
bi_opt_copy_prop.c	pan/bi: Add and use bi_replace_src helper	2022-09-02 16:03:24 +00:00
bi_opt_cse.c	pan/bi: Add and use bi_replace_src helper	2022-09-02 16:03:24 +00:00
bi_opt_dce.c	pan/bi: Add and use bi_foreach_ssa_src macro	2022-09-02 16:03:24 +00:00
bi_opt_dual_tex.c	…
bi_opt_message_preload.c	pan/bi: Assume SSA in minor passes	2022-09-02 16:03:23 +00:00
bi_opt_mod_props.c	pan/bi: Remove assert(bi_is_ssa(dest))	2022-09-02 16:03:24 +00:00
bi_opt_push_ubo.c	…
bi_pack.c	…
bi_packer.c.py	…
bi_pressure_schedule.c	pan/bi: Add and use bi_foreach_ssa_src macro	2022-09-02 16:03:24 +00:00
bi_print.c	…
bi_print_common.c	…
bi_print_common.h	…
bi_printer.c.py	pan/bi: Remove NIR registers from the IR	2022-09-02 16:03:24 +00:00
bi_quirks.h	…
bi_ra.c	pan/bi: Fix memory leaks.	2022-09-18 10:18:04 -07:00
bi_schedule.c	pan/bi: Add and use bi_replace_src helper	2022-09-02 16:03:24 +00:00
bi_scoreboard.c	…
bi_test.h	…
bi_validate.c	pan/bi: Strengenth assert in the validator	2022-09-02 16:03:24 +00:00
bifrost.h	…
bifrost_compile.c	panfrost: Don't use nir_variable to link varyings	2022-11-02 16:52:11 +00:00
bifrost_compile.h	pan/bi: Lower fisnormal	2022-09-19 17:22:58 +00:00
bifrost_isa.py	…
bifrost_nir.h	…
bifrost_nir_algebraic.py	pan/bi: Implement unpack_64_2x32	2022-09-19 17:22:58 +00:00
bir.c	pan/bi: Add and use bi_num_successors helper	2022-09-02 16:03:24 +00:00
cmdline.c	…
compiler.h	pan/bi: Add and use bi_num_successors helper	2022-09-02 16:03:24 +00:00
disassemble.c	…
disassemble.h	…
gen_disasm.py	…
meson.build	panfrost: Use compute-based XFB on Midgard	2022-10-27 20:13:11 +00:00
nodearray.h	…

README.md

Bifrost compiler

Register file

Defined partially in software, partially in hardware.

Blend shaders

R0 - R3: input (color #0) R4 - R7: input (color #1) R8 - R15: general purpose R48: return address

Fragment

Anything live during BLEND must respect blend shader registers.

R0 - R3: preloaded (message #0) R4 - R7: preloaded (message #1) R57 - R63: preloaded (various)

R0 - R15: general purpose (full threads) R48 - R63: general purpose (full threads)

R32 - R47: general purpose (half threads, or v6)