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| author | Arthur Hanson Rasmusson <arthur@vgpu.io> | 2026-10-06 23:05:02 -0400 |
|---|---|---|
| committer | Arthur Hanson Rasmusson <arthur@vgpu.io> | 2026-10-06 23:05:02 -0400 |
| commit | f27e38956df2705d797f0639c8a851b0c3c41209 (patch) | |
| tree | 73e85fdb6d50ee857860088d7b9eccea85fd41df /kernel/gsp_phys_gpu.h | |
| parent | 00765678d59423669fcad6fe56cce9be9bb352e6 (diff) | |
| download | open-iov-f27e38956df2705d797f0639c8a851b0c3c41209.tar.gz open-iov-f27e38956df2705d797f0639c8a851b0c3c41209.zip | |
vgsp: mode 35 m64 - forced module-sem release discriminant + fallback poll fix + post-mortem dumps
m63 (E2 lane enable) got the forwarded QMD into SKED: CWD_TABLE_0 left the
cold value, CWD_TABLE_1 carried the QMD id (0x1070), SKED_ACTIVITY fired,
FECS_CURRENT_CTX showed V7's instance with VALID=1 - but the release write
never landed (relw=5) and no engine fault is logged. m64 discriminates
'engine completed but the shadow release was lost' from 'engine never
completed': param gsp_phys_rmcall_gr_rel_mod=1 forces QMD release0 to the
module window-0 semaphore with a distinct payload (0x600df00d) and polls the
SEM chunk. Also fixes the latent fallback (it set no poll source, so a
module-sem release could never complete) and dumps the full QMD w2..w15 +
the guest release page words in the post-mortem.
Diffstat (limited to 'kernel/gsp_phys_gpu.h')
| -rw-r--r-- | kernel/gsp_phys_gpu.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/gsp_phys_gpu.h b/kernel/gsp_phys_gpu.h index 2087e33..84461e8 100644 --- a/kernel/gsp_phys_gpu.h +++ b/kernel/gsp_phys_gpu.h @@ -325,6 +325,10 @@ int gsp_phys_rmcall_gr_pcas_two_step_value(void); */ int gsp_phys_rmcall_gr_qmdwin_value(void); +/* m64 discriminant: force the forwarded GR QMD release0 to the module + * semaphore so engine completion is always observable (default 0). */ +int gsp_phys_rmcall_gr_rel_mod_value(void); + /* * Ladder VAS ownership selector (gsp_phys_rmcall_vas_shared; default 0). * 0 = FERMI_VASPACE_A is allocated IS_EXTERNALLY_OWNED (historical ladder |