6.9-stable review patch. If anyone has any objections, please let me know.
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From: Riana Tauro riana.tauro@intel.com
[ Upstream commit 2470b141bfae2b9695b5b6823e3b978b22d33dde ]
disable c6 called in guc_pc_fini_hw is unreachable.
GuC PC init returns earlier if skip_guc_pc is true and never registers the finish call thus making disable_c6 unreachable.
move this call to gt idle.
v2: rebase v3: add fixes tag (Himal)
Fixes: 975e4a3795d4 ("drm/xe: Manually setup C6 when skip_guc_pc is set") Signed-off-by: Riana Tauro riana.tauro@intel.com Reviewed-by: Rodrigo Vivi rodrigo.vivi@intel.com Link: https://patchwork.freedesktop.org/patch/msgid/20240606100842.956072-3-riana.... Signed-off-by: Rodrigo Vivi rodrigo.vivi@intel.com (cherry picked from commit 6800e63cf97bae62bca56d8e691544540d945f53) Signed-off-by: Thomas Hellström thomas.hellstrom@linux.intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/xe/xe_gt_idle.c | 7 +++++++ drivers/gpu/drm/xe/xe_guc_pc.c | 6 ------ 2 files changed, 7 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/xe/xe_gt_idle.c b/drivers/gpu/drm/xe/xe_gt_idle.c index 1521b3d9933c7..e7a39ad7adba0 100644 --- a/drivers/gpu/drm/xe/xe_gt_idle.c +++ b/drivers/gpu/drm/xe/xe_gt_idle.c @@ -126,6 +126,13 @@ static const struct attribute *gt_idle_attrs[] = { static void gt_idle_sysfs_fini(struct drm_device *drm, void *arg) { struct kobject *kobj = arg; + struct xe_gt *gt = kobj_to_gt(kobj->parent); + + if (gt_to_xe(gt)->info.skip_guc_pc) { + XE_WARN_ON(xe_force_wake_get(gt_to_fw(gt), XE_FW_GT)); + xe_gt_idle_disable_c6(gt); + xe_force_wake_put(gt_to_fw(gt), XE_FW_GT); + }
sysfs_remove_files(kobj, gt_idle_attrs); kobject_put(kobj); diff --git a/drivers/gpu/drm/xe/xe_guc_pc.c b/drivers/gpu/drm/xe/xe_guc_pc.c index f4b031b8d9deb..dd9d65f923da7 100644 --- a/drivers/gpu/drm/xe/xe_guc_pc.c +++ b/drivers/gpu/drm/xe/xe_guc_pc.c @@ -920,12 +920,6 @@ int xe_guc_pc_stop(struct xe_guc_pc *pc) static void xe_guc_pc_fini(struct drm_device *drm, void *arg) { struct xe_guc_pc *pc = arg; - struct xe_device *xe = pc_to_xe(pc); - - if (xe->info.skip_guc_pc) { - xe_gt_idle_disable_c6(pc_to_gt(pc)); - return; - }
xe_force_wake_get(gt_to_fw(pc_to_gt(pc)), XE_FORCEWAKE_ALL); XE_WARN_ON(xe_guc_pc_gucrc_disable(pc));