drm/amd/display: Comments on how to use DSC debugfs some entries (87353ae8) · Commits · 戴 / test

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c

+45 −0

Original line number	Diff line number	Diff line
		@@ -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)
		{

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