Linux ARM-MSM sub-architecture
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From: Connor Abbott <cwabbott0@gmail.com>
To: Rob Clark <robin.clark@oss.qualcomm.com>,
	Sean Paul <sean@poorly.run>,
	 Konrad Dybcio <konradybcio@kernel.org>,
	 Akhil P Oommen <akhilpo@oss.qualcomm.com>,
	 Dmitry Baryshkov <lumag@kernel.org>,
	 Abhinav Kumar <abhinav.kumar@linux.dev>,
	 Jessica Zhang <jesszhan0024@gmail.com>,
	 Marijn Suijten <marijn.suijten@somainline.org>,
	 David Airlie <airlied@gmail.com>,
	Simona Vetter <simona@ffwll.ch>
Cc: linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org,
	 freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org,
	 Connor Abbott <cwabbott0@gmail.com>
Subject: [PATCH] drm/msm/a6xx: Fix dumping A650+ debugbus blocks
Date: Wed, 25 Mar 2026 16:58:37 -0400	[thread overview]
Message-ID: <20260325-drm-msm-a650-debugbus-v1-1-dfbf358890a7@gmail.com> (raw)

These should be appended after the existing debugbus blocks, instead of
replacing them.

Fixes: 1e05bba5e2b8 ("drm/msm/a6xx: Update a6xx gpu coredump")
Signed-off-by: Connor Abbott <cwabbott0@gmail.com>
---
 drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c
index d2d6b2fd3cba303959bd037b60796341315079a1..9699a5b4754628023b67f0eecafcda728953e8d2 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c
@@ -361,7 +361,7 @@ static void a6xx_get_debugbus_blocks(struct msm_gpu *gpu,
 			sizeof(*a6xx_state->debugbus));
 
 	if (a6xx_state->debugbus) {
-		int i;
+		int i, j;
 
 		for (i = 0; i < ARRAY_SIZE(a6xx_debugbus_blocks); i++)
 			a6xx_get_debugbus_block(gpu,
@@ -369,8 +369,6 @@ static void a6xx_get_debugbus_blocks(struct msm_gpu *gpu,
 				&a6xx_debugbus_blocks[i],
 				&a6xx_state->debugbus[i]);
 
-		a6xx_state->nr_debugbus = ARRAY_SIZE(a6xx_debugbus_blocks);
-
 		/*
 		 * GBIF has same debugbus as of other GPU blocks, fall back to
 		 * default path if GPU uses GBIF, also GBIF uses exactly same
@@ -381,17 +379,19 @@ static void a6xx_get_debugbus_blocks(struct msm_gpu *gpu,
 				&a6xx_gbif_debugbus_block,
 				&a6xx_state->debugbus[i]);
 
-			a6xx_state->nr_debugbus += 1;
+			i++;
 		}
 
 
 		if (adreno_is_a650_family(to_adreno_gpu(gpu))) {
-			for (i = 0; i < ARRAY_SIZE(a650_debugbus_blocks); i++)
+			for (j = 0; j < ARRAY_SIZE(a650_debugbus_blocks); i++, j++)
 				a6xx_get_debugbus_block(gpu,
 					a6xx_state,
-					&a650_debugbus_blocks[i],
+					&a650_debugbus_blocks[j],
 					&a6xx_state->debugbus[i]);
 		}
+
+		a6xx_state->nr_debugbus = i;
 	}
 }
 

---
base-commit: e4eb11b34d6c84f398d8f08d7cb4d6c38e739dd2
change-id: 20260325-drm-msm-a650-debugbus-80119b64056a

Best regards,
-- 
Connor Abbott <cwabbott0@gmail.com>


             reply	other threads:[~2026-03-25 20:59 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-25 20:58 Connor Abbott [this message]
2026-03-31 19:01 ` [PATCH] drm/msm/a6xx: Fix dumping A650+ debugbus blocks Akhil P Oommen

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