Merge tag 'amd-drm-next-6.1-2022-09-08' of https://gitlab.freedesktop.org/agd5f/linux into drm-next

amd-drm-next-6.1-2022-09-08:

amdgpu:
- Mode2 reset for RDNA2
- Lots of new DC documentation
- Add documentation about different asic families
- DSC improvements
- Aldebaran fixes
- Misc spelling and grammar fixes
- GFXOFF stats support for vangogh
- DC frame size fixes
- NBIO 7.7 updates
- DCN 3.2 updates
- DCN 3.1.4 Updates
- SMU 13.x updates
- Misc bug fixes
- Rework DC register offset handling
- GC 11.x updates
- PSP 13.x updates
- SDMA 6.x updates
- GMC 11.x updates
- SR-IOV updates
- PSP fixes for TA unloading
- DSC passthrough support
- Misc code cleanups

amdkfd:
- ISA fixes for some GC 10.3 IPs
- Misc code cleanups

radeon:
- Delayed work flush fix
- Use time_after for some jiffies calculations

drm:
- DSC passthrough aux support

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220908155202.57862-1-alexander.deucher@amd.com

1 files changed, 32 insertions, 4 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/dml/display_mode_structs.h b/drivers/gpu/drm/amd/display/dc/dml/display_mode_structs.h
index e8b094006d95..c596187a1e09 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/display_mode_structs.h
+++ b/drivers/gpu/drm/amd/display/dc/dml/display_mode_structs.h
@@ -26,6 +26,16 @@
 #include "dc_features.h"
 #include "display_mode_enums.h"
 
+/**
+ * DOC: overview
+ *
+ * Most of the DML code is automatically generated and tested via hardware
+ * description language. Usually, we use the reference _vcs_dpi in the code
+ * where VCS means "Verilog Compiled Simulator" and DPI stands for "Direct
+ * Programmer Interface". In other words, those structs can be used to
+ * interface with Verilog with other languages such as C.
+ */
+
 #ifndef __DISPLAY_MODE_STRUCTS_H__
 #define __DISPLAY_MODE_STRUCTS_H__
 
@@ -159,13 +169,20 @@ struct _vcs_dpi_voltage_scaling_st {
 	double dtbclk_mhz;
 };
 
+/**
+ * _vcs_dpi_soc_bounding_box_st: SOC definitions
+ *
+ * This struct maintains the SOC Bounding Box information for the ASIC; it
+ * defines things such as clock, voltage, performance, etc. Usually, we load
+ * these values from VBIOS; if something goes wrong, we use some hard-coded
+ * values, which will enable the ASIC to light up with limitations.
+ */
 struct _vcs_dpi_soc_bounding_box_st {
 	struct _vcs_dpi_voltage_scaling_st clock_limits[DC__VOLTAGE_STATES];
-	/*
-	 * This is a temporary stash for updating @clock_limits with the PMFW
-	 * clock table. Do not use outside of *update_bw_boudning_box functions.
+	/**
+	 * @num_states: It represents the total of Display Power Management
+	 * (DPM) supported by the specific ASIC.
 	 */
-	struct _vcs_dpi_voltage_scaling_st _clock_tmp[DC__VOLTAGE_STATES];
 	unsigned int num_states;
 	double sr_exit_time_us;
 	double sr_enter_plus_exit_time_us;
@@ -231,6 +248,14 @@ struct _vcs_dpi_soc_bounding_box_st {
 	enum self_refresh_affinity allow_dram_self_refresh_or_dram_clock_change_in_vblank;
 };
 
+/**
+ * @_vcs_dpi_ip_params_st: IP configuraion for DCN blocks
+ *
+ * In this struct you can find the DCN configuration associated to the specific
+ * ASIC. For example, here we can save how many DPPs the ASIC is using and it
+ * is available.
+ *
+ */
 struct _vcs_dpi_ip_params_st {
 	bool use_min_dcfclk;
 	bool clamp_min_dcfclk;
@@ -283,6 +308,9 @@ struct _vcs_dpi_ip_params_st {
 	unsigned int writeback_line_buffer_chroma_buffer_size;
 
 	unsigned int max_page_table_levels;
+	/**
+	 * @max_num_dpp: Maximum number of DPP supported in the target ASIC.
+	 */
 	unsigned int max_num_dpp;
 	unsigned int max_num_otg;
 	unsigned int cursor_chunk_size;