drm/xe/oa/uapi: OA buffer mmap

Allow the OA buffer to be mmap'd to userspace. This is needed for the MMIO
trigger use case. Even otherwise, with whitelisted OA head/tail ptr
registers, userspace can receive/interpret OA data from the mmap'd buffer
without issuing read()'s on the OA stream fd.

v2: Remove unmap_mapping_range from xe_oa_release (Thomas H)
    Use vm_flags_mod (Umesh)

Acked-by: Rodrigo Vivi <[email protected]>
Suggested-by: Umesh Nerlige Ramappa <[email protected]>
Reviewed-by: Umesh Nerlige Ramappa <[email protected]>
Signed-off-by: Ashutosh Dixit <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

0 files changed, 0 insertions, 0 deletions