Merge tag 'amd-drm-next-6.9-2024-02-09' of https://gitlab.freedesktop.org/agd5f/linux into drm-next

amd-drm-next-6.9-2024-02-09:

amdgpu:
- Validate DMABuf imports in compute VMs
- Add RAS ACA framework
- PSP 13 fixes
- Misc code cleanups
- Replay fixes
- Atom interpretor PS, WS bounds checking
- DML2 fixes
- Audio fixes
- DCN 3.5 Z state fixes
- Remove deprecated ida_simple usage
- UBSAN fixes
- RAS fixes
- Enable seq64 infrastructure
- DC color block enablement
- Documentation updates
- DC documentation updates
- DMCUB updates
- S3 fixes
- VCN 4.0.5 fixes
- DP MST fixes
- SR-IOV fixes

amdkfd:
- Validate DMABuf imports in compute VMs
- SVM fixes
- Trap handler updates

radeon:
- Atom interpretor PS, WS bounds checking
- Misc code cleanups

UAPI:
- Bump KFD version so UMDs know that the fixes that enable the management of
  VA mappings in compute VMs using the GEM_VA ioctl for DMABufs exported from KFD are present
- Add INFO query for input power.  This matches the existing INFO query for average
  power.  Used in gaming HUDs, etc.
  Example userspace: https://github.com/Umio-Yasuno/libdrm-amdgpu-sys-rs/tree/input_power

From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240209221459.5453-1-alexander.deucher@amd.com

1 files changed, 18 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/link/link_detection.c b/drivers/gpu/drm/amd/display/dc/link/link_detection.c
index 24153b0df503..b8c4a04dd175 100644
--- a/drivers/gpu/drm/amd/display/dc/link/link_detection.c
+++ b/drivers/gpu/drm/amd/display/dc/link/link_detection.c
@@ -41,6 +41,7 @@
 #include "protocols/link_dp_dpia.h"
 #include "protocols/link_dp_phy.h"
 #include "protocols/link_dp_training.h"
+#include "protocols/link_dp_dpia_bw.h"
 #include "accessories/link_dp_trace.h"
 
 #include "link_enc_cfg.h"
@@ -991,6 +992,23 @@ static bool detect_link_and_local_sink(struct dc_link *link,
 			if (link->ep_type == DISPLAY_ENDPOINT_USB4_DPIA &&
 					link->reported_link_cap.link_rate > LINK_RATE_HIGH3)
 				link->reported_link_cap.link_rate = LINK_RATE_HIGH3;
+
+			/*
+			 * If this is DP over USB4 link then we need to:
+			 * - Enable BW ALLOC support on DPtx if applicable
+			 */
+			if (dc->config.usb4_bw_alloc_support) {
+				if (link_dp_dpia_set_dptx_usb4_bw_alloc_support(link)) {
+					/* update with non reduced link cap if bw allocation mode is supported */
+					if (link->dpia_bw_alloc_config.nrd_max_link_rate &&
+						link->dpia_bw_alloc_config.nrd_max_lane_count) {
+						link->reported_link_cap.link_rate =
+							link->dpia_bw_alloc_config.nrd_max_link_rate;
+						link->reported_link_cap.lane_count =
+							link->dpia_bw_alloc_config.nrd_max_lane_count;
+					}
+				}
+			}
 			break;
 		}