On Mon, Sep 16, 2024 at 09:49:12AM GMT, Matthew Auld wrote:
Spec says SW is expected to round up to the nearest 128K, if not already
aligned for the CC unit view of CCS. We are seeing the assert sometimes
pop on BMG to tell us that there is a hole between GSM and CCS, as well
as popping other asserts with having a vram size with strange alignment,
which is likely caused by misaligned offset here.
v2 (Shuicheng):
- Do the round_up() on final SW address.
BSpec: 68023
Fixes: b5c2ca0372dc ("drm/xe/xe2hpg: Determine flat ccs offset for vram")
Signed-off-by: Matthew Auld <matthew.auld@xxxxxxxxx>
Cc: Himal Prasad Ghimiray <himal.prasad.ghimiray@xxxxxxxxx>
Cc: Akshata Jahagirdar <akshata.jahagirdar@xxxxxxxxx>
Cc: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
Cc: Shuicheng Lin <shuicheng.lin@xxxxxxxxx>
Cc: Matt Roper <matthew.d.roper@xxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # v6.10+
Reviewed-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@xxxxxxxxx>
Tested-by: Shuicheng Lin <shuicheng.lin@xxxxxxxxx>
This version now works for the random BMG I was using.
Reviewed-by: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
thanks
Lucas De Marchi
