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drm/amd/display: Add ips status info to debugfs

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[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.zuo@amd.com>
Acked-by: Roman Li <roman.li@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Roman Li
2024-05-07 16:04:50 -04:00
committed by Alex Deucher
parent a329598e9e
commit ecfd1bc18a
1 changed files with 47 additions and 0 deletions
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47
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
View File

@@ -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);
}