diff options
| author | Roman Li <roman.li@amd.com> | 2024-05-07 16:04:50 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-05-20 16:20:24 -0400 |
| commit | ecfd1bc18a5b8c5b679513f75c75ad2b8deafa13 (patch) | |
| tree | 5b88dd5b0804219e9f8d44a45d7a4bd86c878f7a /drivers | |
| parent | a329598e9eab8cb0f33ec0ede1f7a4e290b1be1c (diff) | |
drm/amd/display: Add ips status info to debugfs
[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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 47 |
1 files changed, 47 insertions, 0 deletions
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 @@ -2671,6 +2671,49 @@ unlock: } /* + * 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. * Ranges from 0x0 to 0x10000 (= 100% PWM) @@ -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); } |