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| author | Arthur Hanson Rasmusson <arthur@vgpu.io> | 2026-10-05 21:01:17 -0400 |
|---|---|---|
| committer | Arthur Hanson Rasmusson <arthur@vgpu.io> | 2026-10-05 21:01:17 -0400 |
| commit | 3c9d31151b8aa2d9e789de6787b1f18b84bb09d3 (patch) | |
| tree | bbe62306c8f18175e3a31009770729ceccd2b004 /kernel/gsp_phys_gpu.c | |
| parent | fed5e574a3b326c384d5960dae9b7b7b5f94d9be (diff) | |
| download | open-iov-3c9d31151b8aa2d9e789de6787b1f18b84bb09d3.tar.gz open-iov-3c9d31151b8aa2d9e789de6787b1f18b84bb09d3.zip | |
vgsp: contiguous shadow PTEs for multi-page GR buffers (R4)
The mail launch's param buffer spans two pages but the QMD names only the
base page. The second page has no pointer word, so the Tier-2 shadow path
skipped it and the launch was refused. Map a page with no pointer word that
is contiguous with the previous shadow-mapped page into the next PTE of the
same 128 B fetch line (each line covers up to 16 consecutive 4 KB pages),
keeping the rewritten base-pointer buffer contiguous for the engine.
Diffstat (limited to 'kernel/gsp_phys_gpu.c')
0 files changed, 0 insertions, 0 deletions