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| author | Eliot Courtney <ecourtney@nvidia.com> | 2026-08-04 14:41:12 +0900 |
|---|---|---|
| committer | Alexandre Courbot <acourbot@nvidia.com> | 2026-08-05 14:20:36 +0900 |
| commit | 5c9deba5578db5a3ea05be8a3e4a59ecb08ee76f (patch) | |
| tree | b92c27dadf226db1140bcb37a36aac6e42cb174c /rust/kernel | |
| parent | 44e7e7f7cffb10a93bb88e7cb59b7b8b3e2deb1c (diff) | |
gpu: nova-core: correct FRTS vidmem offset calculation
Currently, the frts vidmem offset is calculated based on the non-wpr
heap size and pmu reservation size, but this is not right. The layout
actually looks like this:
| non-wpr heap | WPR2 .. FRTS | PMU reserved | ... | VGA workspace |
It's just by coincidence + generous alignment that the values happened
to match. Instead, define a per-architecture reserved size at the end of
the framebuffer and use this plus the PMU reserved size to calculate the
frts vidmem offset.
Fixes: d317e4585fa3 ("gpu: nova-core: Hopper/Blackwell: add FSP Chain of Trust boot")
Signed-off-by: Eliot Courtney <ecourtney@nvidia.com>
Link: https://patch.msgid.link/20260804-blackwell-fixes-v4-1-ac858b6a1935@nvidia.com
[acourbot: add comment clarifying reason for testing pmu_reserved_size.]
[acourbot: make fb_end_reserved_size() return u64.]
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Diffstat (limited to 'rust/kernel')
0 files changed, 0 insertions, 0 deletions