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authorArthur Hanson Rasmusson <arthur@vgpu.io>2026-10-05 17:16:18 -0400
committerArthur Hanson Rasmusson <arthur@vgpu.io>2026-10-05 17:16:18 -0400
commit8a589b0dc46c0599c287482fe4091b1012822bf7 (patch)
tree512f83ea91a0ea9478ee07d557ad9ac7d52b40fe /kernel/gsp_phys_gpu.c
parent13a4473a7e86cef4283f3e3a1e0e6d29b3ef84e6 (diff)
downloadopen-iov-8a589b0dc46c0599c287482fe4091b1012822bf7.tar.gz
open-iov-8a589b0dc46c0599c287482fe4091b1012822bf7.zip
vgsp: add golden-replay mode 25 (captured client construct + atomic 9-entry promote)
Ladder mode 25 reproduces the real 570.144 host client's golden-image construct on the golden replay handles: captured channel shape (flags 0x00200320, hObjectBuffer 0, gpFifoOffset 0, gpFifoEntries 0x20, engineType 1, host memdesc substitutions), a single atomic 9-entry GPU_PROMOTE_CTX on the golden channel (MAIN id0 and PATCH id2 combined, ids 3/4/5/6 VA-only globals, ids 9/10/11 FECS/PRIV/UNR combined), then the TURING_A 3D object. The golden VAS/channel/3D object stay alive and the existing V6 FWCLIENT promote follows on the golden-initialized GR-instance state; a failed golden step aborts with no retry and no follow-up promote. The captured VAS COPY_SERVER_RESERVED_PDES control is implemented gated (fwclient mask bit 8, zero-level no-op form) because its level PAs are server-internal. Mode clamp/name/help extended to 25; modes 1-24 unchanged.
Diffstat (limited to 'kernel/gsp_phys_gpu.c')
-rw-r--r--kernel/gsp_phys_gpu.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/kernel/gsp_phys_gpu.c b/kernel/gsp_phys_gpu.c
index 5e6b264..21313a2 100644
--- a/kernel/gsp_phys_gpu.c
+++ b/kernel/gsp_phys_gpu.c
@@ -511,8 +511,8 @@ static int gsp_phys_rmcall_gr_promote_set(const char *val,
return ret;
if (gsp_phys_rmcall_gr_promote_param < 0 ||
- gsp_phys_rmcall_gr_promote_param > 24) {
- pr_warn("vgsp: gsp_phys_rmcall_gr_promote=%d is outside 0..24; clamping to 0 (no PROMOTE_CTX)\n",
+ gsp_phys_rmcall_gr_promote_param > 25) {
+ pr_warn("vgsp: gsp_phys_rmcall_gr_promote=%d is outside 0..25; clamping to 0 (no PROMOTE_CTX)\n",
gsp_phys_rmcall_gr_promote_param);
gsp_phys_rmcall_gr_promote_param = 0;
}
@@ -531,7 +531,7 @@ module_param_cb(gsp_phys_rmcall_gr_promote,
&gsp_phys_rmcall_gr_promote_ops,
&gsp_phys_rmcall_gr_promote_param, 0644);
MODULE_PARM_DESC(gsp_phys_rmcall_gr_promote,
- "GR context-promote bisection (default 0: never send PROMOTE_CTX; 1: single entry init+nonmapped=0 size=raw+subctx, the p6h1b shape; 2: two-phase PA-only nonmapped then VA-only with the same fields; 3: single entry size=raw; 4: two-phase with a zero-field VA-only step; 5: batched entryCount=2 PA-only init + zero-field VA-only; 6: no-entry hVirtMemory, NV01_MEMORY_VIRTUAL (class 0x70) on the VAS at the context window + PROMOTE_CTX entryCount=0; 7: no-entry bare virtAddress+size, entryCount=0; 8: single MAIN entry like 1 on the KMD-managed channel (V6 SKIP_CTXBUFFER_ALLOC), server creates the virtual context memdesc itself; 9: same V6 channel with the stock client's zero-field VA-only MAIN entry, bInitialize=0; 10: same V6 channel, GPU_INITIALIZE_CTX (0x2080012d) installs the physical context memdesc then PROMOTE_CTX entryCount=0 bare virtAddress+size; 11: mode 10 with a server FBMEM context buffer, VIDMEM physAttr 0x4; 12: V5 UVM/vGPU-faithful PA-only MAIN entry (bInitialize=1 bNonmapped=1, no VA) and continue to BIND/SCHEDULE/submit; 13: mode 12 plus a PATCH PA-only promote first, sized from GET_ENGINE_CONTEXT_PROPERTIES engineId 0x10; 14: KMD channel (V6) + PATCH PA-only then the single-entry MAIN init+VA (the flow that books the context VA and commits ENG_CTX_VALID); 15: mode 14 with a server FBMEM MAIN context buffer and VIDMEM physAttr 0x4; 16: mode 14 plus a PM ctxsw PA-only promote first; 17: no client PROMOTE_CTX, paired with gsp_phys_srv_ctxbuf=1 so the GSP-RM server-manages and commits the context; 18: mode 8 shape plus a client FERMI_CONTEXT_SHARE_A on the TSG (hContextShare) whose construct allocates the GraphicsSubcontext; 19: the stock guest's exact 9-entry promote set (MAIN 2 MB PA+VA, PATCH, global buffers, FECS event, private access maps) on V5; 20: mode 6's no-entry hVirtMemory promote on the KMD-managed V6 channel (SKIP_CTXBUFFER_ALLOC), untested - the combination the V5 refusal (0x1f) points at; 21: mode 7's no-entry bare (virtAddress, size) promote on the V6 KMD-managed channel; 22: GPU_INITIALIZE_CTX then mode 20's no-entry hVirtMemory promote; 23: the hVirtMemory no-entry promote backed by the server-owned FBMEM context object (GSP_RM_ALLOC class 0x40) on the server-managed shared V5 channel - a physical memdesc reaches the per-buffer commit without the ADDR_VIRTUAL vaList gate; 24: the reference FWCLIENT non-3D set {MAIN, PM, PATCH, FECS_EVENT, PRIV_ACCESS_MAP, UNRESTRICTED_PRIV_ACCESS_MAP} as one control on the V6 KMD-managed channel, combined PA+VA entries where the ladder has a VA (MAIN PDB-mapped; PATCH/FECS/UNRESTRICTED booking-only), PM and PRIV_ACCESS_MAP init-only (no VA source), unsourceable buffers omitted and logged); values outside 0..24 clamp to 0 with a warning");
+ "GR context-promote bisection (default 0: never send PROMOTE_CTX; 1: single entry init+nonmapped=0 size=raw+subctx, the p6h1b shape; 2: two-phase PA-only nonmapped then VA-only with the same fields; 3: single entry size=raw; 4: two-phase with a zero-field VA-only step; 5: batched entryCount=2 PA-only init + zero-field VA-only; 6: no-entry hVirtMemory, NV01_MEMORY_VIRTUAL (class 0x70) on the VAS at the context window + PROMOTE_CTX entryCount=0; 7: no-entry bare virtAddress+size, entryCount=0; 8: single MAIN entry like 1 on the KMD-managed channel (V6 SKIP_CTXBUFFER_ALLOC), server creates the virtual context memdesc itself; 9: same V6 channel with the stock client's zero-field VA-only MAIN entry, bInitialize=0; 10: same V6 channel, GPU_INITIALIZE_CTX (0x2080012d) installs the physical context memdesc then PROMOTE_CTX entryCount=0 bare virtAddress+size; 11: mode 10 with a server FBMEM context buffer, VIDMEM physAttr 0x4; 12: V5 UVM/vGPU-faithful PA-only MAIN entry (bInitialize=1 bNonmapped=1, no VA) and continue to BIND/SCHEDULE/submit; 13: mode 12 plus a PATCH PA-only promote first, sized from GET_ENGINE_CONTEXT_PROPERTIES engineId 0x10; 14: KMD channel (V6) + PATCH PA-only then the single-entry MAIN init+VA (the flow that books the context VA and commits ENG_CTX_VALID); 15: mode 14 with a server FBMEM MAIN context buffer and VIDMEM physAttr 0x4; 16: mode 14 plus a PM ctxsw PA-only promote first; 17: no client PROMOTE_CTX, paired with gsp_phys_srv_ctxbuf=1 so the GSP-RM server-manages and commits the context; 18: mode 8 shape plus a client FERMI_CONTEXT_SHARE_A on the TSG (hContextShare) whose construct allocates the GraphicsSubcontext; 19: the stock guest's exact 9-entry promote set (MAIN 2 MB PA+VA, PATCH, global buffers, FECS event, private access maps) on V5; 20: mode 6's no-entry hVirtMemory promote on the KMD-managed V6 channel (SKIP_CTXBUFFER_ALLOC), untested - the combination the V5 refusal (0x1f) points at; 21: mode 7's no-entry bare (virtAddress, size) promote on the V6 KMD-managed channel; 22: GPU_INITIALIZE_CTX then mode 20's no-entry hVirtMemory promote; 23: the hVirtMemory no-entry promote backed by the server-owned FBMEM context object (GSP_RM_ALLOC class 0x40) on the server-managed shared V5 channel - a physical memdesc reaches the per-buffer commit without the ADDR_VIRTUAL vaList gate; 24: the reference FWCLIENT non-3D set {MAIN, PM, PATCH, FECS_EVENT, PRIV_ACCESS_MAP, UNRESTRICTED_PRIV_ACCESS_MAP} as one control on the V6 KMD-managed channel, combined PA+VA entries where the ladder has a VA (MAIN PDB-mapped; PATCH/FECS/UNRESTRICTED booking-only), PM and PRIV_ACCESS_MAP init-only (no VA source), unsourceable buffers omitted and logged); 25: the real golden-client construct on the golden replay handles (captured channel flags 0x00200320 + single atomic 9-entry PROMOTE_CTX on the golden channel), then the V6 FWCLIENT follow-on promote on the golden-initialized GR-instance state; requires gsp_phys_rmcall_golden=1 and gsp_phys_rmcall_engine=1; values outside 0..25 clamp to 0 with a warning");
int gsp_phys_rmcall_gr_promote_value(void)
{