From 502756e23360d1192c496bc6791e97621e8578d8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ma=C3=ADra=20Canal?= <mcanal@igalia.com>
Date: Fri, 5 Jan 2024 11:57:42 -0300
Subject: [PATCH] drm/v3d: Show the memory-management stats on debugfs
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Dump the contents of the DRM MM allocator of the V3D driver. This will
help us to debug the VA ranges allocated.
Signed-off-by: MaÃra Canal <mcanal@igalia.com>
Reviewed-by: Melissa Wen <mwen@igalia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240105145851.193492-1-mcanal@igalia.com
---
drivers/gpu/drm/v3d/v3d_debugfs.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/drivers/gpu/drm/v3d/v3d_debugfs.c b/drivers/gpu/drm/v3d/v3d_debugfs.c
index f843a50d5dce6..cdfe1d3bf5eef 100644
--- a/drivers/gpu/drm/v3d/v3d_debugfs.c
+++ b/drivers/gpu/drm/v3d/v3d_debugfs.c
@@ -260,11 +260,26 @@ static int v3d_measure_clock(struct seq_file *m, void *unused)
return 0;
}
+static int v3d_debugfs_mm(struct seq_file *m, void *unused)
+{
+ struct drm_printer p = drm_seq_file_printer(m);
+ struct drm_debugfs_entry *entry = m->private;
+ struct drm_device *dev = entry->dev;
+ struct v3d_dev *v3d = to_v3d_dev(dev);
+
+ spin_lock(&v3d->mm_lock);
+ drm_mm_print(&v3d->mm, &p);
+ spin_unlock(&v3d->mm_lock);
+
+ return 0;
+}
+
static const struct drm_debugfs_info v3d_debugfs_list[] = {
{"v3d_ident", v3d_v3d_debugfs_ident, 0},
{"v3d_regs", v3d_v3d_debugfs_regs, 0},
{"measure_clock", v3d_measure_clock, 0},
{"bo_stats", v3d_debugfs_bo_stats, 0},
+ {"v3d_mm", v3d_debugfs_mm, 0},
};
void
--
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