From 7f3a4257159dea8e7ef66d1a539dc6df708b8ed3 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 7 Aug 2024 15:17:46 +0200 Subject: Adding upstream version 6.10.3. Signed-off-by: Daniel Baumann --- drivers/gpu/drm/xe/xe_gsc_submit.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'drivers/gpu/drm/xe/xe_gsc_submit.c') diff --git a/drivers/gpu/drm/xe/xe_gsc_submit.c b/drivers/gpu/drm/xe/xe_gsc_submit.c index 348994b271..d34d032488 100644 --- a/drivers/gpu/drm/xe/xe_gsc_submit.c +++ b/drivers/gpu/drm/xe/xe_gsc_submit.c @@ -40,6 +40,21 @@ gsc_to_gt(struct xe_gsc *gsc) return container_of(gsc, struct xe_gt, uc.gsc); } +/** + * xe_gsc_create_host_session_id - Creates a random 64 bit host_session id with + * bits 56-63 masked. + * + * Returns: random host_session_id which can be used to send messages to gsc cs + */ +u64 xe_gsc_create_host_session_id(void) +{ + u64 host_session_id; + + get_random_bytes(&host_session_id, sizeof(u64)); + host_session_id &= ~HOST_SESSION_CLIENT_MASK; + return host_session_id; +} + /** * xe_gsc_emit_header - write the MTL GSC header in memory * @xe: the Xe device -- cgit v1.2.3