From df433a3fac078c79dc4efab81015dec012322668 Mon Sep 17 00:00:00 2001 From: Michal Wajdeczko Date: Tue, 4 Jun 2024 23:22:31 +0200 Subject: drm/xe/vf: Custom GT restart MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Only few steps from the GT restart phase are applicable for the VF drivers, as initialization of PAT, WOPCM, MOCS or CCS mode can be done only by the native or PF drivers. Use custom GT restart function if running in VF mode. Signed-off-by: Michal Wajdeczko Reviewed-by: Piotr Piórkowski Link: https://patchwork.freedesktop.org/patch/msgid/20240604212231.1416-5-michal.wajdeczko@intel.com --- drivers/gpu/drm/xe/xe_gt.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/drivers/gpu/drm/xe/xe_gt.c b/drivers/gpu/drm/xe/xe_gt.c index 4e11662b78bd..57d84751e160 100644 --- a/drivers/gpu/drm/xe/xe_gt.c +++ b/drivers/gpu/drm/xe/xe_gt.c @@ -611,12 +611,34 @@ static int do_gt_reset(struct xe_gt *gt) return err; } +static int vf_gt_restart(struct xe_gt *gt) +{ + int err; + + err = xe_uc_sanitize_reset(>->uc); + if (err) + return err; + + err = xe_uc_init_hw(>->uc); + if (err) + return err; + + err = xe_uc_start(>->uc); + if (err) + return err; + + return 0; +} + static int do_gt_restart(struct xe_gt *gt) { struct xe_hw_engine *hwe; enum xe_hw_engine_id id; int err; + if (IS_SRIOV_VF(gt_to_xe(gt))) + return vf_gt_restart(gt); + xe_pat_init(gt); xe_gt_mcr_set_implicit_defaults(gt); -- cgit