From 32446284021c44f46767ebffd1c64ffddfed1ed3 Mon Sep 17 00:00:00 2001 From: Arthur Hanson Rasmusson Date: Tue, 29 Sep 2026 15:42:58 -0400 Subject: guest-diag: scan 512KB per 2MB region and start window at 0x200000000 (cover GR GPFIFO rings) --- tools/guest-diag/guest_pin_stream.py | 5 ++++- tools/guest-diag/pin_gr_stream.py | 5 ++++- 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/tools/guest-diag/guest_pin_stream.py b/tools/guest-diag/guest_pin_stream.py index 1ff0d3f..8d0b34d 100644 --- a/tools/guest-diag/guest_pin_stream.py +++ b/tools/guest-diag/guest_pin_stream.py @@ -25,7 +25,10 @@ PAMAX = int(sys.argv[5], 16) if len(sys.argv) > 5 else 0x180000000 INTERVAL = float(os.environ.get("STREAM_INTERVAL", "0.25")) BATCH = 4096 REGION = 0x200000 -SPAN = int(os.environ.get("STREAM_SPAN", "0x10000"), 16) +# The GR GPFIFO rings sit at 0x20020c000 + 0x3000*rank (region offset 0xc000 +# ..0x45000) and the per-channel push allocations follow; 512 KB per 2 MB +# region covers both without scanning holes that hold nothing. +SPAN = int(os.environ.get("STREAM_SPAN", "0x80000"), 16) TRACE = ("/sys/kernel/tracing/trace" if os.path.exists("/sys/kernel/tracing/trace") else "/sys/kernel/debug/tracing/trace") diff --git a/tools/guest-diag/pin_gr_stream.py b/tools/guest-diag/pin_gr_stream.py index 44f8681..643145b 100644 --- a/tools/guest-diag/pin_gr_stream.py +++ b/tools/guest-diag/pin_gr_stream.py @@ -22,7 +22,10 @@ PARAM = "/sys/module/open_iov_vfio/parameters" GUEST_SCRIPT = os.path.join(HERE, "guest_pin_stream.py") PORT = int(os.environ.get("PINWIN_PORT", "45678")) -LO = os.environ.get("PINWIN_LO", "0x200400000") +# 0x200000000 covers the GR GPFIFO rings/UVM channel mappings below the +# old 0x200400000 start; without them the host learns bogus vidmem pairs +# for the rings and never decodes GR pushes. +LO = os.environ.get("PINWIN_LO", "0x200000000") HI = os.environ.get("PINWIN_HI", "0x206000000") PAMAX = os.environ.get("PINWIN_PA_MAX", "0x180000000") SEMSTREAM = os.environ.get("SEM_STREAM_FILE", "/tmp/opencode/sem_stream.txt") -- cgit v1.2.3