[PATCH 1/2] drm/amd/display: Fix warning storm on Raven2

[Deucher, Alexander]

Series is:

Acked-by: Alex Deucher <alexander.deucher at amd.com>

________________________________
From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> on behalf of Roman.Li at amd.com <Roman.Li at amd.com>
Sent: Tuesday, October 9, 2018 1:50:09 PM
To: amd-gfx at lists.freedesktop.org
Cc: Li, Sun peng (Leo); Wu, Hersen; Wentland, Harry; Li, Roman
Subject: [PATCH 1/2] drm/amd/display: Fix warning storm on Raven2

From: Roman Li <Roman.Li at amd.com>

[Why]
Wrong index for pstate debug test register

[How]
Add correct index value for dcn1_01 in hubbub1_construct()

Signed-off-by: Hersen Wu <hersenxs.wu at amd.com>
Signed-off-by: Roman Li <Roman.Li at amd.com>
---
 .../gpu/drm/amd/display/dc/dcn10/dcn10_hubbub.c    | 43 +++++++++++++++++++++-
 1 file changed, 41 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubbub.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubbub.c
index 69345ce6..4254e7e 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubbub.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubbub.c
@@ -133,7 +133,43 @@ bool hubbub1_verify_allow_pstate_change_high(
                 forced_pstate_allow = false;
         }

-       /* RV1:
+       /* RV2:
+        * dchubbubdebugind, at: 0xB
+        * description
+        * 0:     Pipe0 Plane0 Allow Pstate Change
+        * 1:     Pipe0 Plane1 Allow Pstate Change
+        * 2:     Pipe0 Cursor0 Allow Pstate Change
+        * 3:     Pipe0 Cursor1 Allow Pstate Change
+        * 4:     Pipe1 Plane0 Allow Pstate Change
+        * 5:     Pipe1 Plane1 Allow Pstate Change
+        * 6:     Pipe1 Cursor0 Allow Pstate Change
+        * 7:     Pipe1 Cursor1 Allow Pstate Change
+        * 8:     Pipe2 Plane0 Allow Pstate Change
+        * 9:     Pipe2 Plane1 Allow Pstate Change
+        * 10:    Pipe2 Cursor0 Allow Pstate Change
+        * 11:    Pipe2 Cursor1 Allow Pstate Change
+        * 12:    Pipe3 Plane0 Allow Pstate Change
+        * 13:    Pipe3 Plane1 Allow Pstate Change
+        * 14:    Pipe3 Cursor0 Allow Pstate Change
+        * 15:    Pipe3 Cursor1 Allow Pstate Change
+        * 16:    Pipe4 Plane0 Allow Pstate Change
+        * 17:    Pipe4 Plane1 Allow Pstate Change
+        * 18:    Pipe4 Cursor0 Allow Pstate Change
+        * 19:    Pipe4 Cursor1 Allow Pstate Change
+        * 20:    Pipe5 Plane0 Allow Pstate Change
+        * 21:    Pipe5 Plane1 Allow Pstate Change
+        * 22:    Pipe5 Cursor0 Allow Pstate Change
+        * 23:    Pipe5 Cursor1 Allow Pstate Change
+        * 24:    Pipe6 Plane0 Allow Pstate Change
+        * 25:    Pipe6 Plane1 Allow Pstate Change
+        * 26:    Pipe6 Cursor0 Allow Pstate Change
+        * 27:    Pipe6 Cursor1 Allow Pstate Change
+        * 28:    WB0 Allow Pstate Change
+        * 29:    WB1 Allow Pstate Change
+        * 30:    Arbiter's allow_pstate_change
+        * 31:    SOC pstate change request"
+        *
+        * RV1:
          * dchubbubdebugind, at: 0x7
          * description "3-0:   Pipe0 cursor0 QOS
          * 7-4:   Pipe1 cursor0 QOS
@@ -157,7 +193,6 @@ bool hubbub1_verify_allow_pstate_change_high(
          * 31:    SOC pstate change request
          */

-
         REG_WRITE(DCHUBBUB_TEST_DEBUG_INDEX, hubbub->debug_test_index_pstate);

         for (i = 0; i < pstate_wait_timeout_us; i++) {
@@ -819,5 +854,9 @@ void hubbub1_construct(struct hubbub *hubbub,
         hubbub->masks = hubbub_mask;

         hubbub->debug_test_index_pstate = 0x7;
+#if defined(CONFIG_DRM_AMD_DC_DCN1_01)
+       if (ctx->dce_version == DCN_VERSION_1_01)
+               hubbub->debug_test_index_pstate = 0xB;
+#endif
 }

--
2.7.4

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