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* [PATCH v7 1/2] drm/xe: add a new debugfs file - mmio
@ 2024-04-14  8:11 Koby Elbaz
  2024-04-14  8:11 ` [PATCH v7 2/2] drm/xe: restore xe_mmio_ioctl as the ioctl handler of the mmio debugfs file Koby Elbaz
                   ` (18 more replies)
  0 siblings, 19 replies; 21+ messages in thread
From: Koby Elbaz @ 2024-04-14  8:11 UTC (permalink / raw)
  To: intel-xe

Now that the former mmio handlers are fully removed, this
debugfs file will be used for mmio access (read/write)
through the debugfs ioctl file operation.

Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
---
 drivers/gpu/drm/xe/xe_debugfs.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/gpu/drm/xe/xe_debugfs.c b/drivers/gpu/drm/xe/xe_debugfs.c
index c9b30dbdc14d..ce27516ffac0 100644
--- a/drivers/gpu/drm/xe/xe_debugfs.c
+++ b/drivers/gpu/drm/xe/xe_debugfs.c
@@ -111,12 +111,22 @@ static int forcewake_release(struct inode *inode, struct file *file)
 	return 0;
 }
 
+static long xe_debugfs_mmio_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
+{
+	return 0;
+}
+
 static const struct file_operations forcewake_all_fops = {
 	.owner = THIS_MODULE,
 	.open = forcewake_open,
 	.release = forcewake_release,
 };
 
+static const struct file_operations mmio_fops = {
+	.owner = THIS_MODULE,
+	.unlocked_ioctl = xe_debugfs_mmio_ioctl,
+};
+
 void xe_debugfs_register(struct xe_device *xe)
 {
 	struct ttm_device *bdev = &xe->ttm;
@@ -155,6 +165,8 @@ void xe_debugfs_register(struct xe_device *xe)
 	for_each_gt(gt, xe, id)
 		xe_gt_debugfs_register(gt);
 
+	debugfs_create_file("mmio", 0644, root, xe, &mmio_fops);
+
 #ifdef CONFIG_FAULT_INJECTION
 	fault_create_debugfs_attr("fail_gt_reset", root, &gt_reset_failure);
 #endif
-- 
2.34.1


^ permalink raw reply related	[flat|nested] 21+ messages in thread

end of thread, other threads:[~2024-05-09 20:58 UTC | newest]

Thread overview: 21+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2024-04-14  8:11 [PATCH v7 1/2] drm/xe: add a new debugfs file - mmio Koby Elbaz
2024-04-14  8:11 ` [PATCH v7 2/2] drm/xe: restore xe_mmio_ioctl as the ioctl handler of the mmio debugfs file Koby Elbaz
2024-04-14 17:13   ` Ofir Bitton
2024-04-14 10:11 ` [PATCH v7 1/2] drm/xe: add a new debugfs file - mmio Ofir Bitton
2024-04-15 16:24 ` ✓ CI.Patch_applied: success for series starting with [v7,1/2] " Patchwork
2024-04-15 16:25 ` ✗ CI.checkpatch: warning " Patchwork
2024-04-15 16:26 ` ✓ CI.KUnit: success " Patchwork
2024-04-15 16:37 ` ✓ CI.Build: " Patchwork
2024-04-15 16:39 ` ✓ CI.Hooks: " Patchwork
2024-04-15 16:41 ` ✓ CI.checksparse: " Patchwork
2024-04-15 17:07 ` ✓ CI.BAT: " Patchwork
2024-04-16  1:37 ` ✗ CI.FULL: failure " Patchwork
2024-04-16  7:08 ` ✓ CI.Patch_applied: success for series starting with [v7,1/2] drm/xe: add a new debugfs file - mmio (rev2) Patchwork
2024-04-16  7:08 ` ✗ CI.checkpatch: warning " Patchwork
2024-04-16  7:09 ` ✓ CI.KUnit: success " Patchwork
2024-04-16  7:22 ` ✓ CI.Build: " Patchwork
2024-04-16  7:25 ` ✓ CI.Hooks: " Patchwork
2024-04-16  7:26 ` ✓ CI.checksparse: " Patchwork
2024-04-16  7:58 ` ✓ CI.BAT: " Patchwork
2024-04-17  4:34 ` ✗ CI.FULL: failure " Patchwork
2024-05-09 20:58 ` [PATCH v7 1/2] drm/xe: add a new debugfs file - mmio Rodrigo Vivi

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