diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/gsp_sema_service.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/kernel/gsp_sema_service.c b/kernel/gsp_sema_service.c index c07915f..d2d1462 100644 --- a/kernel/gsp_sema_service.c +++ b/kernel/gsp_sema_service.c @@ -12624,8 +12624,26 @@ static void svc_gr_data_fill(struct nv_vgpu_device *vgpu) u32 before = svc_fwd_req.gr_n_data; u64 pba = 0; u32 pba_ap = 0; + u32 span; const char *pba_src = "?"; + /* + * Window budget discipline (large buffers): only real device + * operands (high, cudaMalloc-shaped VAs) get the full per-pointer + * span. Low-VA candidates (the launch's own QMD/release/reloc + * pointers) need a single page at most, and the launch's QMD VA + * is not a kernel operand at all - relocating 68 pages for it + * starved the operands that follow and blew the 205-page cap + * (r141: a 256 KB operand resolved 0 pages because the QMD and + * param candidates consumed the window). Excluding them lets + * three 256 KB operands (3x68 = 204) fit. + */ + if ((base & ~(u64)(SEMA_PAGE_SIZE - 1)) == + (svc_fwd_req.gr_qmd_dev_va & ~(u64)(SEMA_PAGE_SIZE - 1))) + continue; + span = (base >= 0x40000000000ULL) ? + SVC_GR_DATA_PAGES_PER_PTR : 1u; + if (is_arg[w] && base >= 0x40000000000ULL) n_arg_hi++; @@ -12640,7 +12658,7 @@ static void svc_gr_data_fill(struct nv_vgpu_device *vgpu) svc_pd_found, svc.ipin_n); } - for (p = 0; p < SVC_GR_DATA_PAGES_PER_PTR; p++) { + for (p = 0; p < span; p++) { u64 va = wins[w] + (u64)p * SEMA_PAGE_SIZE; u64 pa = 0; u32 ap = 0, x; |