[PATCH] drm/amdgpu: Add debug masks for HDCP LC FW testing

[Pillai, Aurabindo]

[AMD Official Use Only - AMD Internal Distribution Only]

Reviewed-by: Aurabindo Pillai <aurabindo.pillai at amd.com>


--

Regards,
Jay
________________________________
From: Dominik Kaszewski <dominik.kaszewski at amd.com>
Sent: Thursday, March 13, 2025 4:52 AM
To: amd-gfx at lists.freedesktop.org <amd-gfx at lists.freedesktop.org>
Cc: Pillai, Aurabindo <Aurabindo.Pillai at amd.com>
Subject: [PATCH] drm/amdgpu: Add debug masks for HDCP LC FW testing

HDCP Locality Check is being moved to FW, add debug flags to control
its behavior in existing hardware for validation purposes.

Signed-off-by: Dominik Kaszewski <dominik.kaszewski at amd.com>
---
 drivers/gpu/drm/amd/include/amd_shared.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/gpu/drm/amd/include/amd_shared.h b/drivers/gpu/drm/amd/include/amd_shared.h
index 485b713cfad0..4c95b885d1d0 100644
--- a/drivers/gpu/drm/amd/include/amd_shared.h
+++ b/drivers/gpu/drm/amd/include/amd_shared.h
@@ -358,6 +358,18 @@ enum DC_DEBUG_MASK {
          * @DC_DISABLE_CUSTOM_BRIGHTNESS_CURVE: If set, disable support for custom brightness curves
          */
         DC_DISABLE_CUSTOM_BRIGHTNESS_CURVE = 0x40000,
+
+       /**
+        * @DC_HDCP_LC_FORCE_FW_ENABLE: If set, use HDCP Locality Check FW
+        * path regardless of reported HW capabilities.
+        */
+       DC_HDCP_LC_FORCE_FW_ENABLE = 0x80000,
+
+       /**
+        * @DC_HDCP_LC_ENABLE_SW_FALLBACK If set, upon HDCP Locality Check FW
+        * path failure, retry using legacy SW path.
+        */
+       DC_HDCP_LC_ENABLE_SW_FALLBACK = 0x100000,
 };

 enum amd_dpm_forced_level;
--
2.43.0

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