diff options
| author | Chris Wilson <[email protected]> | 2022-12-02 12:28:42 +0000 |
|---|---|---|
| committer | Rodrigo Vivi <[email protected]> | 2022-12-13 13:22:26 -0500 |
| commit | 31a2e6cbe8a4eb0d1650fff4b77872b744e14a62 (patch) | |
| tree | 7da563da0c98ac530e5f3ce2719c359e5772ff1f /lib/pm-notifier-error-inject.c | |
| parent | 3153eebb7a76e663ac76d6670dc113296de96622 (diff) | |
drm/i915/migrate: Account for the reserved_space
If the ring is nearly full when calling into emit_pte(), we might
incorrectly trample the reserved_space when constructing the packet to
emit the PTEs. This then triggers the GEM_BUG_ON(rq->reserved_space >
ring->space) when later submitting the request, since the request itself
doesn't have enough space left in the ring to emit things like
workarounds, breadcrumbs etc.
v2: Fix the whitespace errors
Testcase: igt@i915_selftests@live_emit_pte_full_ring
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/7535
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/6889
Fixes: cf586021642d ("drm/i915/gt: Pipelined page migration")
Signed-off-by: Chris Wilson <[email protected]>
Signed-off-by: Matthew Auld <[email protected]>
Cc: Andrzej Hajda <[email protected]>
Cc: Andi Shyti <[email protected]>
Cc: Nirmoy Das <[email protected]>
Cc: <[email protected]> # v5.15+
Tested-by: Nirmoy Das <[email protected]>
Reviewed-by: Nirmoy Das <[email protected]>
Reviewed-by: Andrzej Hajda <[email protected]>
Reviewed-by: Andi Shyti <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
(cherry picked from commit 35168a6c4ed53db4f786858bac23b1474fd7d0dc)
Signed-off-by: Rodrigo Vivi <[email protected]>
Diffstat (limited to 'lib/pm-notifier-error-inject.c')
0 files changed, 0 insertions, 0 deletions