linux-kernel - [PATCH 09/21] drm/msm/dpu: add devcoredumps for cwb registers

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Message-ID: <20240829-concurrent-wb-v1-9-502b16ae2ebb@quicinc.com>
Date: Thu, 29 Aug 2024 13:48:30 -0700
From: Jessica Zhang <quic_jesszhan@...cinc.com>
To: Rob Clark <robdclark@...il.com>,
        Dmitry Baryshkov
	<dmitry.baryshkov@...aro.org>,
        <quic_abhinavk@...cinc.com>, Sean Paul
	<sean@...rly.run>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        "David
 Airlie" <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
        "Maarten
 Lankhorst" <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard
	<mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>
CC: <quic_ebharadw@...cinc.com>, <linux-arm-msm@...r.kernel.org>,
        <dri-devel@...ts.freedesktop.org>, <freedreno@...ts.freedesktop.org>,
        <linux-kernel@...r.kernel.org>, Rob Clark <robdclark@...omium.org>,
        "Jessica
 Zhang" <quic_jesszhan@...cinc.com>
Subject: [PATCH 09/21] drm/msm/dpu: add devcoredumps for cwb registers

From: Esha Bharadwaj <quic_ebharadw@...cinc.com>

Implement instance of snapshot function to dump new registers used
for cwb

Signed-off-by: Esha Bharadwaj <quic_ebharadw@...cinc.com>
Signed-off-by: Jessica Zhang <quic_jesszhan@...cinc.com>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index d1e2143110f2..87526d3c224a 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@ -989,6 +989,11 @@ static void dpu_kms_mdp_snapshot(struct msm_disp_state *disp_state, struct msm_k
 				dpu_kms->mmio + cat->mdp[0].base, "top");
 	}
 
+	/* dump CWB sub-blocks HW regs info */
+	for (i = 0; i < cat->cwb_count; i++)
+		msm_disp_snapshot_add_block(disp_state, cat->cwb[i].len,
+					    dpu_kms->mmio + cat->cwb[i].base, cat->cwb[i].name);
+
 	/* dump DSC sub-blocks HW regs info */
 	for (i = 0; i < cat->dsc_count; i++) {
 		base = dpu_kms->mmio + cat->dsc[i].base;

-- 
2.34.1