diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 156 |
1 files changed, 115 insertions, 41 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 1b6b15708b96..f1145086a468 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 @@ -887,6 +887,47 @@ unlock: return res; } +/* + * Example usage: + * Disable dsc passthrough, i.e.,: have dsc decoding at converver, not external RX + * echo 1 /sys/kernel/debug/dri/0/DP-1/dsc_disable_passthrough + * Enable dsc passthrough, i.e.,: have dsc passthrough to external RX + * echo 0 /sys/kernel/debug/dri/0/DP-1/dsc_disable_passthrough + */ +static ssize_t dp_dsc_passthrough_set(struct file *f, const char __user *buf, + size_t size, loff_t *pos) +{ + struct amdgpu_dm_connector *aconnector = file_inode(f)->i_private; + char *wr_buf = NULL; + uint32_t wr_buf_size = 42; + int max_param_num = 1; + long param; + uint8_t param_nums = 0; + + if (size == 0) + return -EINVAL; + + wr_buf = kcalloc(wr_buf_size, sizeof(char), GFP_KERNEL); + + if (!wr_buf) { + DRM_DEBUG_DRIVER("no memory to allocate write buffer\n"); + return -ENOSPC; + } + + if (parse_write_buffer_into_params(wr_buf, size, + ¶m, buf, + max_param_num, + ¶m_nums)) { + kfree(wr_buf); + return -EINVAL; + } + + aconnector->dsc_settings.dsc_force_disable_passthrough = param; + + kfree(wr_buf); + return 0; +} + #ifdef CONFIG_DRM_AMD_DC_HDCP /* * Returns the HDCP capability of the Display (1.4 for now). @@ -925,6 +966,22 @@ static int hdcp_sink_capability_show(struct seq_file *m, void *data) return 0; } #endif + +/* + * Returns whether the connected display is internal and not hotpluggable. + * Example usage: cat /sys/kernel/debug/dri/0/DP-1/internal_display + */ +static int internal_display_show(struct seq_file *m, void *data) +{ + struct drm_connector *connector = m->private; + struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector); + struct dc_link *link = aconnector->dc_link; + + seq_printf(m, "Internal: %u\n", link->is_internal_display); + + return 0; +} + /* function description * * generic SDP message access for testing @@ -2361,6 +2418,44 @@ unlock: return size; } +/* + * Backlight at this moment. Read only. + * As written to display, taking ABM and backlight lut into account. + * Ranges from 0x0 to 0x10000 (= 100% PWM) + * + * Example usage: cat /sys/kernel/debug/dri/0/eDP-1/current_backlight + */ +static int current_backlight_show(struct seq_file *m, void *unused) +{ + struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(m->private); + struct dc_link *link = aconnector->dc_link; + unsigned int backlight; + + backlight = dc_link_get_backlight_level(link); + seq_printf(m, "0x%x\n", backlight); + + return 0; +} + +/* + * Backlight value that is being approached. Read only. + * As written to display, taking ABM and backlight lut into account. + * Ranges from 0x0 to 0x10000 (= 100% PWM) + * + * Example usage: cat /sys/kernel/debug/dri/0/eDP-1/target_backlight + */ +static int target_backlight_show(struct seq_file *m, void *unused) +{ + struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(m->private); + struct dc_link *link = aconnector->dc_link; + unsigned int backlight; + + backlight = dc_link_get_target_backlight_pwm(link); + seq_printf(m, "0x%x\n", backlight); + + return 0; +} + DEFINE_SHOW_ATTRIBUTE(dp_dsc_fec_support); DEFINE_SHOW_ATTRIBUTE(dmub_fw_state); DEFINE_SHOW_ATTRIBUTE(dmub_tracebuffer); @@ -2369,6 +2464,7 @@ DEFINE_SHOW_ATTRIBUTE(dp_lttpr_status); #ifdef CONFIG_DRM_AMD_DC_HDCP DEFINE_SHOW_ATTRIBUTE(hdcp_sink_capability); #endif +DEFINE_SHOW_ATTRIBUTE(internal_display); static const struct file_operations dp_dsc_clock_en_debugfs_fops = { .owner = THIS_MODULE, @@ -2480,6 +2576,12 @@ static const struct file_operations dp_max_bpc_debugfs_fops = { .llseek = default_llseek }; +static const struct file_operations dp_dsc_disable_passthrough_debugfs_fops = { + .owner = THIS_MODULE, + .write = dp_dsc_passthrough_set, + .llseek = default_llseek +}; + static const struct { char *name; const struct file_operations *fops; @@ -2504,7 +2606,8 @@ static const struct { {"dsc_chunk_size", &dp_dsc_chunk_size_debugfs_fops}, {"dsc_slice_bpg", &dp_dsc_slice_bpg_offset_debugfs_fops}, {"dp_dsc_fec_support", &dp_dsc_fec_support_fops}, - {"max_bpc", &dp_max_bpc_debugfs_fops} + {"max_bpc", &dp_max_bpc_debugfs_fops}, + {"dsc_disable_passthrough", &dp_dsc_disable_passthrough_debugfs_fops}, }; #ifdef CONFIG_DRM_AMD_DC_HDCP @@ -2594,13 +2697,17 @@ DEFINE_DEBUGFS_ATTRIBUTE(dmcub_trace_event_state_fops, dmcub_trace_event_state_g DEFINE_DEBUGFS_ATTRIBUTE(psr_fops, psr_get, NULL, "%llu\n"); +DEFINE_SHOW_ATTRIBUTE(current_backlight); +DEFINE_SHOW_ATTRIBUTE(target_backlight); + static const struct { char *name; const struct file_operations *fops; } connector_debugfs_entries[] = { {"force_yuv420_output", &force_yuv420_output_fops}, {"output_bpc", &output_bpc_fops}, - {"trigger_hotplug", &trigger_hotplug_debugfs_fops} + {"trigger_hotplug", &trigger_hotplug_debugfs_fops}, + {"internal_display", &internal_display_fops} }; void connector_debugfs_init(struct amdgpu_dm_connector *connector) @@ -2616,8 +2723,13 @@ void connector_debugfs_init(struct amdgpu_dm_connector *connector) dp_debugfs_entries[i].fops); } } - if (connector->base.connector_type == DRM_MODE_CONNECTOR_eDP) + if (connector->base.connector_type == DRM_MODE_CONNECTOR_eDP) { debugfs_create_file_unsafe("psr_state", 0444, dir, connector, &psr_fops); + debugfs_create_file("amdgpu_current_backlight_pwm", 0444, dir, connector, + ¤t_backlight_fops); + debugfs_create_file("amdgpu_target_backlight_pwm", 0444, dir, connector, + &target_backlight_fops); + } for (i = 0; i < ARRAY_SIZE(connector_debugfs_entries); i++) { debugfs_create_file(connector_debugfs_entries[i].name, @@ -2920,38 +3032,6 @@ static ssize_t dtn_log_write( return size; } -/* - * Backlight at this moment. Read only. - * As written to display, taking ABM and backlight lut into account. - * Ranges from 0x0 to 0x10000 (= 100% PWM) - */ -static int current_backlight_show(struct seq_file *m, void *unused) -{ - struct amdgpu_device *adev = (struct amdgpu_device *)m->private; - struct amdgpu_display_manager *dm = &adev->dm; - - unsigned int backlight = dc_link_get_backlight_level(dm->backlight_link); - - seq_printf(m, "0x%x\n", backlight); - return 0; -} - -/* - * Backlight value that is being approached. Read only. - * As written to display, taking ABM and backlight lut into account. - * Ranges from 0x0 to 0x10000 (= 100% PWM) - */ -static int target_backlight_show(struct seq_file *m, void *unused) -{ - struct amdgpu_device *adev = (struct amdgpu_device *)m->private; - struct amdgpu_display_manager *dm = &adev->dm; - - unsigned int backlight = dc_link_get_target_backlight_pwm(dm->backlight_link); - - seq_printf(m, "0x%x\n", backlight); - return 0; -} - static int mst_topo_show(struct seq_file *m, void *unused) { struct amdgpu_device *adev = (struct amdgpu_device *)m->private; @@ -3134,8 +3214,6 @@ static int visual_confirm_get(void *data, u64 *val) return 0; } -DEFINE_SHOW_ATTRIBUTE(current_backlight); -DEFINE_SHOW_ATTRIBUTE(target_backlight); DEFINE_SHOW_ATTRIBUTE(mst_topo); DEFINE_DEBUGFS_ATTRIBUTE(visual_confirm_fops, visual_confirm_get, visual_confirm_set, "%llu\n"); @@ -3215,10 +3293,6 @@ void dtn_debugfs_init(struct amdgpu_device *adev) struct drm_minor *minor = adev_to_drm(adev)->primary; struct dentry *root = minor->debugfs_root; - debugfs_create_file("amdgpu_current_backlight_pwm", 0444, - root, adev, ¤t_backlight_fops); - debugfs_create_file("amdgpu_target_backlight_pwm", 0444, - root, adev, &target_backlight_fops); debugfs_create_file("amdgpu_mst_topology", 0444, root, adev, &mst_topo_fops); debugfs_create_file("amdgpu_dm_dtn_log", 0644, root, adev, |