drm/xe: Remove mem_access from suspend and resume functions

At these points, we are sure that device is awake in D0.
Likely in the middle of the transition, but awake. So,
these extra protections are useless. Let's remove it and
continue with the killing of xe_device_mem_access.

Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240222163937.138342-12-rodrigo.vivi@intel.com

diff --git a/drivers/gpu/drm/xe/xe_gt.c b/drivers/gpu/drm/xe/xe_gt.c
index b75f0bf0a9a10f456d35b0ab8a563d524b94e560..e0c79351a1311335d96cea05fa4646598ec28bb6 100644 (file)
--- a/drivers/gpu/drm/xe/xe_gt.c
+++ b/drivers/gpu/drm/xe/xe_gt.c
@@ -711,13 +711,11 @@ void xe_gt_reset_async(struct xe_gt *gt)
 
 void xe_gt_suspend_prepare(struct xe_gt *gt)
 {
-       xe_device_mem_access_get(gt_to_xe(gt));
        XE_WARN_ON(xe_force_wake_get(gt_to_fw(gt), XE_FORCEWAKE_ALL));
 
        xe_uc_stop_prepare(&gt->uc);
 
        XE_WARN_ON(xe_force_wake_put(gt_to_fw(gt), XE_FORCEWAKE_ALL));
-       xe_device_mem_access_put(gt_to_xe(gt));
 }
 
 int xe_gt_suspend(struct xe_gt *gt)
@@ -726,7 +724,6 @@ int xe_gt_suspend(struct xe_gt *gt)
 
        xe_gt_sanitize(gt);
 
-       xe_device_mem_access_get(gt_to_xe(gt));
        err = xe_force_wake_get(gt_to_fw(gt), XE_FORCEWAKE_ALL);
        if (err)
                goto err_msg;
@@ -736,7 +733,6 @@ int xe_gt_suspend(struct xe_gt *gt)
                goto err_force_wake;
 
        XE_WARN_ON(xe_force_wake_put(gt_to_fw(gt), XE_FORCEWAKE_ALL));
-       xe_device_mem_access_put(gt_to_xe(gt));
        xe_gt_info(gt, "suspended\n");
 
        return 0;
@@ -744,7 +740,6 @@ int xe_gt_suspend(struct xe_gt *gt)
 err_force_wake:
        XE_WARN_ON(xe_force_wake_put(gt_to_fw(gt), XE_FORCEWAKE_ALL));
 err_msg:
-       xe_device_mem_access_put(gt_to_xe(gt));
        xe_gt_err(gt, "suspend failed (%pe)\n", ERR_PTR(err));
 
        return err;
@@ -754,7 +749,6 @@ int xe_gt_resume(struct xe_gt *gt)
 {
        int err;
 
-       xe_device_mem_access_get(gt_to_xe(gt));
        err = xe_force_wake_get(gt_to_fw(gt), XE_FORCEWAKE_ALL);
        if (err)
                goto err_msg;
@@ -764,7 +758,6 @@ int xe_gt_resume(struct xe_gt *gt)
                goto err_force_wake;
 
        XE_WARN_ON(xe_force_wake_put(gt_to_fw(gt), XE_FORCEWAKE_ALL));
-       xe_device_mem_access_put(gt_to_xe(gt));
        xe_gt_info(gt, "resumed\n");
 
        return 0;
@@ -772,7 +765,6 @@ int xe_gt_resume(struct xe_gt *gt)
 err_force_wake:
        XE_WARN_ON(xe_force_wake_put(gt_to_fw(gt), XE_FORCEWAKE_ALL));
 err_msg:
-       xe_device_mem_access_put(gt_to_xe(gt));
        xe_gt_err(gt, "resume failed (%pe)\n", ERR_PTR(err));
 
        return err;