diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 45 |
1 files changed, 45 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 9260b27659e4..9610e628baf0 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 @@ -1565,6 +1565,21 @@ done: return size; } +/* function: read DSC picture width parameter on the connector + * + * The read function: dp_dsc_pic_width_read + * returns dsc picture width used in the current configuration + * It is the same as h_addressable of the current + * display's timing + * The return is an integer: 0 or other positive integer + * If 0 then DSC is disabled. + * + * Access it with the following command: + * + * cat /sys/kernel/debug/dri/0/DP-X/dsc_pic_width + * + * 0 - means that DSC is disabled + */ static ssize_t dp_dsc_pic_width_read(struct file *f, char __user *buf, size_t size, loff_t *pos) { @@ -1679,6 +1694,21 @@ static ssize_t dp_dsc_pic_height_read(struct file *f, char __user *buf, return result; } +/* function: read DSC chunk size parameter on the connector + * + * The read function: dp_dsc_chunk_size_read + * returns dsc chunk size set in the current configuration + * The value is calculated automatically by DSC code + * and depends on slice parameters and bpp target rate + * The return is an integer: 0 or other positive integer + * If 0 then DSC is disabled. + * + * Access it with the following command: + * + * cat /sys/kernel/debug/dri/0/DP-X/dsc_chunk_size + * + * 0 - means that DSC is disabled + */ static ssize_t dp_dsc_chunk_size_read(struct file *f, char __user *buf, size_t size, loff_t *pos) { @@ -1736,6 +1766,21 @@ static ssize_t dp_dsc_chunk_size_read(struct file *f, char __user *buf, return result; } +/* function: read DSC slice bpg offset on the connector + * + * The read function: dp_dsc_slice_bpg_offset_read + * returns dsc bpg slice offset set in the current configuration + * The value is calculated automatically by DSC code + * and depends on slice parameters and bpp target rate + * The return is an integer: 0 or other positive integer + * If 0 then DSC is disabled. + * + * Access it with the following command: + * + * cat /sys/kernel/debug/dri/0/DP-X/dsc_slice_bpg_offset + * + * 0 - means that DSC is disabled + */ static ssize_t dp_dsc_slice_bpg_offset_read(struct file *f, char __user *buf, size_t size, loff_t *pos) { |