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 | 91 |
1 files changed, 91 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 f81d3439ee8c..0461fecd68db 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 @@ -32,6 +32,19 @@ #include "amdgpu_dm.h" #include "amdgpu_dm_debugfs.h" #include "dm_helpers.h" +#include "dmub/inc/dmub_srv.h" + +struct dmub_debugfs_trace_header { + uint32_t entry_count; + uint32_t reserved[3]; +}; + +struct dmub_debugfs_trace_entry { + uint32_t trace_code; + uint32_t tick_count; + uint32_t param0; + uint32_t param1; +}; /* function description * get/ set DP configuration: lane_count, link_rate, spread_spectrum @@ -675,6 +688,73 @@ static ssize_t dp_phy_test_pattern_debugfs_write(struct file *f, const char __us return bytes_from_user; } +/** + * Returns the DMCUB tracebuffer contents. + * Example usage: cat /sys/kernel/debug/dri/0/amdgpu_dm_dmub_tracebuffer + */ +static int dmub_tracebuffer_show(struct seq_file *m, void *data) +{ + struct amdgpu_device *adev = m->private; + struct dmub_srv_fb_info *fb_info = adev->dm.dmub_fb_info; + struct dmub_debugfs_trace_entry *entries; + uint8_t *tbuf_base; + uint32_t tbuf_size, max_entries, num_entries, i; + + if (!fb_info) + return 0; + + tbuf_base = (uint8_t *)fb_info->fb[DMUB_WINDOW_5_TRACEBUFF].cpu_addr; + if (!tbuf_base) + return 0; + + tbuf_size = fb_info->fb[DMUB_WINDOW_5_TRACEBUFF].size; + max_entries = (tbuf_size - sizeof(struct dmub_debugfs_trace_header)) / + sizeof(struct dmub_debugfs_trace_entry); + + num_entries = + ((struct dmub_debugfs_trace_header *)tbuf_base)->entry_count; + + num_entries = min(num_entries, max_entries); + + entries = (struct dmub_debugfs_trace_entry + *)(tbuf_base + + sizeof(struct dmub_debugfs_trace_header)); + + for (i = 0; i < num_entries; ++i) { + struct dmub_debugfs_trace_entry *entry = &entries[i]; + + seq_printf(m, + "trace_code=%u tick_count=%u param0=%u param1=%u\n", + entry->trace_code, entry->tick_count, entry->param0, + entry->param1); + } + + return 0; +} + +/** + * Returns the DMCUB firmware state contents. + * Example usage: cat /sys/kernel/debug/dri/0/amdgpu_dm_dmub_fw_state + */ +static int dmub_fw_state_show(struct seq_file *m, void *data) +{ + struct amdgpu_device *adev = m->private; + struct dmub_srv_fb_info *fb_info = adev->dm.dmub_fb_info; + uint8_t *state_base; + uint32_t state_size; + + if (!fb_info) + return 0; + + state_base = (uint8_t *)fb_info->fb[DMUB_WINDOW_6_FW_STATE].cpu_addr; + if (!state_base) + return 0; + + state_size = fb_info->fb[DMUB_WINDOW_6_FW_STATE].size; + + return seq_write(m, state_base, state_size); +} + /* * Returns the current and maximum output bpc for the connector. * Example usage: cat /sys/kernel/debug/dri/0/DP-1/output_bpc @@ -880,6 +960,8 @@ static ssize_t dp_dpcd_data_read(struct file *f, char __user *buf, return read_size - r; } +DEFINE_SHOW_ATTRIBUTE(dmub_fw_state); +DEFINE_SHOW_ATTRIBUTE(dmub_tracebuffer); DEFINE_SHOW_ATTRIBUTE(output_bpc); DEFINE_SHOW_ATTRIBUTE(vrr_range); @@ -1008,6 +1090,9 @@ void connector_debugfs_init(struct amdgpu_dm_connector *connector) debugfs_create_file_unsafe("force_yuv420_output", 0644, dir, connector, &force_yuv420_output_fops); + connector->debugfs_dpcd_address = 0; + connector->debugfs_dpcd_size = 0; + } /* @@ -1188,5 +1273,11 @@ int dtn_debugfs_init(struct amdgpu_device *adev) debugfs_create_file_unsafe("amdgpu_dm_visual_confirm", 0644, root, adev, &visual_confirm_fops); + debugfs_create_file_unsafe("amdgpu_dm_dmub_tracebuffer", 0644, root, + adev, &dmub_tracebuffer_fops); + + debugfs_create_file_unsafe("amdgpu_dm_dmub_fw_state", 0644, root, + adev, &dmub_fw_state_fops); + return 0; } |