drm/i915/gt: move remaining debugfs interfaces into gt

The following interfaces:

  i915_wedged
  i915_forcewake_user

are dependent on gt values. Put them inside gt/ and drop the
"i915_" prefix name. This would be the new structure:

  dri/0/gt
  |
  +-- forcewake_user
  |
  \-- reset

For backwards compatibility with existing igt (and the slight
semantic difference between operating on the i915 abi entry
points and the deep gt info):

  dri/0
  |
  +-- i915_wedged
  |
  \-- i915_forcewake_user

remain at the top level.

Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211012221738.16029-1-andi@etezian.org

1 files changed, 41 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c b/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c
index 5f84ad602642..0bc1454f38dd 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c
@@ -19,6 +19,46 @@
 #include "intel_sideband.h"
 #include "intel_uncore.h"
 
+int intel_gt_pm_debugfs_forcewake_user_open(struct intel_gt *gt)
+{
+	atomic_inc(&gt->user_wakeref);
+	intel_gt_pm_get(gt);
+	if (GRAPHICS_VER(gt->i915) >= 6)
+		intel_uncore_forcewake_user_get(gt->uncore);
+
+	return 0;
+}
+
+int intel_gt_pm_debugfs_forcewake_user_release(struct intel_gt *gt)
+{
+	if (GRAPHICS_VER(gt->i915) >= 6)
+		intel_uncore_forcewake_user_put(gt->uncore);
+	intel_gt_pm_put(gt);
+	atomic_dec(&gt->user_wakeref);
+
+	return 0;
+}
+
+static int forcewake_user_open(struct inode *inode, struct file *file)
+{
+	struct intel_gt *gt = inode->i_private;
+
+	return intel_gt_pm_debugfs_forcewake_user_open(gt);
+}
+
+static int forcewake_user_release(struct inode *inode, struct file *file)
+{
+	struct intel_gt *gt = inode->i_private;
+
+	return intel_gt_pm_debugfs_forcewake_user_release(gt);
+}
+
+static const struct file_operations forcewake_user_fops = {
+	.owner = THIS_MODULE,
+	.open = forcewake_user_open,
+	.release = forcewake_user_release,
+};
+
 static int fw_domains_show(struct seq_file *m, void *data)
 {
 	struct intel_gt *gt = m->private;
@@ -627,6 +667,7 @@ void intel_gt_pm_debugfs_register(struct intel_gt *gt, struct dentry *root)
 		{ "drpc", &drpc_fops, NULL },
 		{ "frequency", &frequency_fops, NULL },
 		{ "forcewake", &fw_domains_fops, NULL },
+		{ "forcewake_user", &forcewake_user_fops, NULL},
 		{ "llc", &llc_fops, llc_eval },
 		{ "rps_boost", &rps_boost_fops, rps_eval },
 	};