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authorArthur Hanson Rasmusson <arthur@vgpu.io>2026-09-30 00:06:42 -0400
committerArthur Hanson Rasmusson <arthur@vgpu.io>2026-09-30 00:06:42 -0400
commit2c001647e47455544739fc8f4e841c6b93cbe32f (patch)
tree4121924eb52aa18d8b0a614320e830edb4e45951 /kernel/gsp_rm_emulation.c
parent6d380a3c3f5cc3cac1fb3bea913b18bbfb1f3a13 (diff)
downloadopen-iov-2c001647e47455544739fc8f4e841c6b93cbe32f.tar.gz
open-iov-2c001647e47455544739fc8f4e841c6b93cbe32f.zip
gsprm: reply-latency logging + param dump cap; guest-diag: CDT_PAUSE, watcher reaping, wider CE stream window
Diffstat (limited to 'kernel/gsp_rm_emulation.c')
-rw-r--r--kernel/gsp_rm_emulation.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/kernel/gsp_rm_emulation.c b/kernel/gsp_rm_emulation.c
index d1d87e9..777c63c 100644
--- a/kernel/gsp_rm_emulation.c
+++ b/kernel/gsp_rm_emulation.c
@@ -2545,6 +2545,7 @@ static void gsp_rm_handle_rm_control(struct gsp_emu_context *ctx,
u8 *reply;
u32 out_status = 0;
u32 out_params_size = 0;
+ u64 t0 = ktime_get_ns();
memcpy(&req, req_data, GSP_RM_CTRL_HDR_SIZE);
@@ -2730,7 +2731,7 @@ static void gsp_rm_handle_rm_control(struct gsp_emu_context *ctx,
/* Dump small request params so mapping/alloc controls that
* carry PAs can be identified (rate-limited). */
if (req.paramsSize && req.paramsSize <= 96 &&
- rm->ctrl_param_dumps < 60) {
+ rm->ctrl_param_dumps < 400) {
rm->ctrl_param_dumps++;
nv_vgpu_info(ctx->vgpu,
"GSPRM: ctrl 0x%x params[0..%u]=%*phN",
@@ -2765,6 +2766,15 @@ static void gsp_rm_handle_rm_control(struct gsp_emu_context *ctx,
memcpy(reply + 16, &out_params_size, 4);
memcpy(reply + 20, &req.flags, 4);
+ {
+ u64 dt_us = div_u64(ktime_get_ns() - t0, 1000);
+
+ nv_vgpu_info(ctx->vgpu,
+ "GSPRM: RM_CONTROL reply cmd=0x%x hClient=0x%x hObject=0x%x in=%u out=%u status=0x%x us=%llu",
+ req.cmd, req.hClient, req.hObject, req.paramsSize,
+ out_params_size, out_status, dt_us);
+ }
+
if (gsp_rm_send(ctx, GSPRM_RPC_FUNC_GSP_RM_CONTROL, sequence, 0,
reply, GSP_RM_CTRL_HDR_SIZE + out_params_size))
nv_vgpu_err(ctx->vgpu, "GSPRM: RM_CONTROL reply send failed cmd=0x%x",