24ded292a5
When GEM backing storage is allocated those are normal pages,
so there is no point using pgprot_writecombine while mmaping.
This fixes mismatch of buffer pages' memory attributes between
the frontend and backend which may cause screen artifacts.
Fixes:
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|---|---|---|
| .. | ||
| Kconfig | ||
| Makefile | ||
| xen_drm_front.c | ||
| xen_drm_front.h | ||
| xen_drm_front_cfg.c | ||
| xen_drm_front_cfg.h | ||
| xen_drm_front_conn.c | ||
| xen_drm_front_conn.h | ||
| xen_drm_front_evtchnl.c | ||
| xen_drm_front_evtchnl.h | ||
| xen_drm_front_gem.c | ||
| xen_drm_front_gem.h | ||
| xen_drm_front_kms.c | ||
| xen_drm_front_kms.h | ||