OpenHarmony/third_party_mesa3d
2
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

agx: Model control flow instructions

Browse Source 
Thankfully the encoding is regular, if a bit complicated.

Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11023>
This commit is contained in:
Alyssa Rosenzweig
2021-05-23 12:36:14 -04:00
committed by Alyssa Rosenzweig
parent 4fe03cf97c
commit a270665a9e
1 changed files with 14 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
src/asahi/compiler/agx_opcodes.py
View File

@@ -88,6 +88,7 @@ ICOND = immediate("icond")
FCOND = immediate("fcond")
NEST = immediate("nest")
INVERT_COND = immediate("invert_cond")
NEST = immediate("nest")
TARGET = immediate("target", "agx_block *")
FUNOP = lambda x: (x << 28)
@@ -182,6 +183,19 @@ op("ld_tile", (0x49, 0x7F, 8, _), dests = 1, srcs = 0,
op("st_tile", (0x09, 0x7F, 8, _), dests = 0, srcs = 1,
can_eliminate = False, imms = [FORMAT])
# TODO: model implicit r0l destinations
for is_float in [False, True]:
mod_mask = 0 if is_float else (0x3 << 26) | (0x3 << 38)
for (cf, cf_op) in [("if", 0), ("else", 1), ("while", 2)]:
name = "{}_{}cmp".format(cf, "f" if is_float else "i")
exact = 0x42 | (0x0 if is_float else 0x10) | (cf_op << 9)
mask = 0x7F | (0x3 << 9) | mod_mask | (0x3 << 44)
imms = [NEST, FCOND if is_float else ICOND, INVERT_COND]
op(name, (exact, mask, 6, _), dests = 0, srcs = 2, can_eliminate = False,
imms = imms, is_float = is_float)
op("bitop", (0x7E, 0x7F, 6, _), srcs = 2, imms = [TRUTH_TABLE])
op("convert", (0x3E | L, 0x7F | L | (0x3 << 38), 6, _), srcs = 2, imms = [ROUND])
op("ld_vary", (0x21, 0x3F, 8, _), srcs = 1, imms = [CHANNELS])