linux-kernel - [PATCH v3 10/15] drm/msm/a6xx: Fix A680 highest bank bit value

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Message-Id: <20230223-topic-gmuwrapper-v3-10-5be55a336819@linaro.org>
Date:   Thu, 23 Feb 2023 13:06:44 +0100
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Rob Clark <robdclark@...il.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Sean Paul <sean@...rly.run>, David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Akhil P Oommen <quic_akhilpo@...cinc.com>
Cc:     linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Rob Clark <robdclark@...omium.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>
Subject: [PATCH v3 10/15] drm/msm/a6xx: Fix A680 highest bank bit value

According to the vendor sources, it's equal to 16, which makes hbb_lo
equal to 3.

Fixes: 840d10b64dad ("drm: msm: Add 680 gpu to the adreno gpu list")
Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
 drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
index b5017c56fa1b..2c4afecdd213 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
@@ -885,12 +885,18 @@ static void a6xx_set_ubwc_config(struct msm_gpu *gpu)
 		hbb_lo = 2;
 	}
 
-	if (adreno_is_a640_family(adreno_gpu)) {
+	if (adreno_is_a640(adreno_gpu)) {
 		amsbc = 1;
 		/* HBB = 15 */
 		hbb_lo = 2;
 	}
 
+	if (adreno_is_a680(adreno_gpu)) {
+		amsbc = 1;
+		/* HBB = 16 */
+		hbb_lo = 3;
+	}
+
 	if (adreno_is_a650(adreno_gpu) || adreno_is_a660(adreno_gpu)) {
 		amsbc = 1;
 		/* TODO: get ddr type from bootloader and use 2 for LPDDR4 */

-- 
2.39.2