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From 0f09539c772af43949b4358c6b45fe30a9b14861 Mon Sep 17 00:00:00 2001
From: Tom St Denis <tom.stdenis@amd.com>
Date: Mon, 28 Mar 2016 08:21:52 -0400
Subject: [PATCH 0458/1110] drm/amd/amdgpu: Enable ability to print register
status
Added file "amdgpu_print_status" to debugfs and you can
cat it to have the dmesg log populated with register values
from various IP blocks.
Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 42 ++++++++++++++++++++++++++++++
1 file changed, 42 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 9663d17..f03fa47 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -47,6 +47,8 @@
static int amdgpu_debugfs_regs_init(struct amdgpu_device *adev);
static void amdgpu_debugfs_regs_cleanup(struct amdgpu_device *adev);
+static int amdgpu_debugfs_status_init(struct amdgpu_device *adev);
+
static const char *amdgpu_asic_name[] = {
"BONAIRE",
@@ -1110,6 +1112,15 @@ const struct amdgpu_ip_block_version * amdgpu_get_ip_block(
return NULL;
}
+void amdgpu_print_status(struct amdgpu_device *adev)
+{
+ int i;
+
+ for (i = 0; i < adev->num_ip_blocks; i++)
+ if (adev->ip_blocks[i].funcs->print_status)
+ adev->ip_blocks[i].funcs->print_status(adev);
+}
+
/**
* amdgpu_ip_block_version_cmp
*
@@ -1258,6 +1269,8 @@ static int amdgpu_init(struct amdgpu_device *adev)
adev->ip_block_status[i].hw = true;
}
+ amdgpu_debugfs_status_init(adev);
+
return 0;
}
@@ -2162,3 +2175,32 @@ static int amdgpu_debugfs_regs_init(struct amdgpu_device *adev)
}
static void amdgpu_debugfs_regs_cleanup(struct amdgpu_device *adev) { }
#endif
+
+/*
+ * Status debugfs
+ */
+#if defined(CONFIG_DEBUG_FS)
+static int amdgpu_debugfs_print_status(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *)m->private;
+ struct drm_device *dev = node->minor->dev;
+ struct amdgpu_device *adev = dev->dev_private;
+
+ amdgpu_print_status(adev);
+
+ return 0;
+}
+
+static struct drm_info_list amdgpu_debugfs_status_list[] = {
+ {"amdgpu_print_status", &amdgpu_debugfs_print_status, 0, NULL},
+};
+#endif
+
+static int amdgpu_debugfs_status_init(struct amdgpu_device *adev)
+{
+#if defined(CONFIG_DEBUG_FS)
+ return amdgpu_debugfs_add_files(adev, amdgpu_debugfs_status_list, 1);
+#else
+ return 0;
+#endif
+}
--
2.7.4
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