Re: [PATCH] drm/tests/gpu_buddy: fix interleaving in buffer clearance test
Matthew Auld <[email protected]>
| Newsgroups | org.freedesktop.lists.amd-gfx,org.freedesktop.lists.dri-devel,org.freedesktop.lists.intel-gfx,org.freedesktop.lists.intel-xe |
|---|---|
| Message-ID | <[email protected]> |
On 22/07/2026 07:17, Arunpravin Paneer Selvam wrote:
> The resume clearance test skipped every other allocation, expecting an
> interleaved clear/dirty layout. But the buddy allocator hands out blocks
> contiguously, so this just allocated half the pages in one chunk and never
> exercised gpu_buddy_reset_clear()'s force-merge of opposite-state buddies.
> Allocate all pages into two lists instead and free one cleared, one dirty,
> to build a truly interleaved pattern.
>
> Fixes: e3335ccbf4da ("drm/tests/gpu_buddy: add a new test case for buffer clearance during resume")
> Closes: https://sashiko.dev/#/patchset/[email protected]?part=1
> Cc: Matthew Auld <[email protected]>
> Cc: Christian König <[email protected]>
> Signed-off-by: Arunpravin Paneer Selvam <[email protected]>
Reviewed-by: Matthew Auld <[email protected]>