drm/msm/dpu: add devcoredumps for cwb registers

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

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Esha Bharadwaj <quic_ebharadw@quicinc.com>
Signed-off-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/629221/
Link: https://lore.kernel.org/r/20241216-concurrent-wb-v4-11-fe220297a7f0@quicinc.com

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index eeb8028d5ff9c82386f39d6af2ee2153e6616e58..ba86be8682a863efe94c00f922cb75e0e786d398 100644 (file)
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@ -1016,6 +1016,11 @@ 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;