From 5bfae679d39966fb12c8e390a80e7ecf05693dfe Mon Sep 17 00:00:00 2001 From: Michal Wajdeczko Date: Tue, 4 Jun 2024 23:22:30 +0200 Subject: drm/xe/vf: Custom GuC reset MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The VF drivers can't trigger real GuC firmware reset using GDRST register, but for the VF drivers it is sufficient to send VF_RESET message to reset any VF specific state maintained by the GuC. Use our existing VF bootstrap function as VF_RESET is part of it. Signed-off-by: Michal Wajdeczko Reviewed-by: Piotr Piórkowski Link: https://patchwork.freedesktop.org/patch/msgid/20240604212231.1416-4-michal.wajdeczko@intel.com --- drivers/gpu/drm/xe/xe_guc.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/xe/xe_guc.c b/drivers/gpu/drm/xe/xe_guc.c index 086a048876ba..0bf6e01b8910 100644 --- a/drivers/gpu/drm/xe/xe_guc.c +++ b/drivers/gpu/drm/xe/xe_guc.c @@ -430,6 +430,9 @@ int xe_guc_reset(struct xe_guc *guc) xe_force_wake_assert_held(gt_to_fw(gt), XE_FW_GT); + if (IS_SRIOV_VF(gt_to_xe(gt))) + return xe_gt_sriov_vf_bootstrap(gt); + xe_mmio_write32(gt, GDRST, GRDOM_GUC); ret = xe_mmio_wait32(gt, GDRST, GRDOM_GUC, 0, 5000, &gdrst, false); -- cgit