From: Roman Li <roman...@amd.com>
[Why]
For debugging and testing purposes.
[How]
If IPS is supported create ips_status debugfs entry.
Usage: cat /sys/kernel/debug/dri/0/amdgpu_dm_ips_status
Reviewed-by: Jerry Zuo <jerry....@amd.com>
Acked-by: Roman Li <roman...@amd.com>
Signed-off-by: Roman Li <roman...@amd.com>
---
.../amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 47 +++++++++++++++++++
1 file changed, 47 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
index 7d97fdd9da92..27d5c6077630 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
@@ -2670,6 +2670,49 @@ static ssize_t dp_max_bpc_write(struct file *f, const
char __user *buf,
return size;
}
+/*
+ * IPS status. Read only.
+ *
+ * Example usage: cat /sys/kernel/debug/dri/0/amdgpu_dm_ips_status
+ */
+static int ips_status_show(struct seq_file *m, void *unused)
+{
+ struct amdgpu_device *adev = m->private;
+ struct dc *dc = adev->dm.dc;
+ struct dc_dmub_srv *dc_dmub_srv;
+
+ seq_printf(m, "IPS config: %d\n", dc->config.disable_ips);
+ seq_printf(m, "Idle optimization: %d\n",
dc->idle_optimizations_allowed);
+
+ if (adev->dm.idle_workqueue) {
+ seq_printf(m, "Idle workqueue - enabled: %d\n",
adev->dm.idle_workqueue->enable);
+ seq_printf(m, "Idle workqueue - running: %d\n",
adev->dm.idle_workqueue->running);
+ }
+
+ dc_dmub_srv = dc->ctx->dmub_srv;
+ if (dc_dmub_srv && dc_dmub_srv->dmub) {
+ uint32_t rcg_count, ips1_count, ips2_count;
+ volatile const struct dmub_shared_state_ips_fw *ips_fw =
+
&dc_dmub_srv->dmub->shared_state[DMUB_SHARED_SHARE_FEATURE__IPS_FW].data.ips_fw;
+ rcg_count = ips_fw->rcg_entry_count;
+ ips1_count = ips_fw->ips1_entry_count;
+ ips2_count = ips_fw->ips2_entry_count;
+ seq_printf(m, "entry counts: rcg=%u ips1=%u ips2=%u\n",
+ rcg_count,
+ ips1_count,
+ ips2_count);
+ rcg_count = ips_fw->rcg_exit_count;
+ ips1_count = ips_fw->ips1_exit_count;
+ ips2_count = ips_fw->ips2_exit_count;
+ seq_printf(m, "exit counts: rcg=%u ips1=%u ips2=%u",
+ rcg_count,
+ ips1_count,
+ ips2_count);
+ seq_puts(m, "\n");
+ }
+ return 0;
+}
+
/*
* Backlight at this moment. Read only.
* As written to display, taking ABM and backlight lut into account.
@@ -3240,6 +3283,7 @@ DEFINE_DEBUGFS_ATTRIBUTE(disallow_edp_enter_psr_fops,
DEFINE_SHOW_ATTRIBUTE(current_backlight);
DEFINE_SHOW_ATTRIBUTE(target_backlight);
+DEFINE_SHOW_ATTRIBUTE(ips_status);
static const struct {
char *name;
@@ -4129,4 +4173,7 @@ void dtn_debugfs_init(struct amdgpu_device *adev)
debugfs_create_file_unsafe("amdgpu_dm_disable_hpd", 0644, root, adev,
&disable_hpd_ops);
+ if (adev->dm.dc->caps.ips_support)
+ debugfs_create_file_unsafe("amdgpu_dm_ips_status", 0644, root,
adev,
+ &ips_status_fops);
}
--
2.34.1
