linux-kernel - [PATCH 4/4] drm/msm/mdss: reuse defined bitfields for UBWC 2.0

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Message-Id: <20240921-msm-mdss-ubwc-v1-4-411dcf309d05@linaro.org>
Date: Sat, 21 Sep 2024 11:17:32 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Rob Clark <robdclark@...il.com>, 
 Abhinav Kumar <quic_abhinavk@...cinc.com>, Sean Paul <sean@...rly.run>, 
 Marijn Suijten <marijn.suijten@...ainline.org>, 
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>
Cc: linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org, 
 dri-devel@...ts.freedesktop.org, freedreno@...ts.freedesktop.org
Subject: [PATCH 4/4] drm/msm/mdss: reuse defined bitfields for UBWC 2.0

Follow other msm_mdss_setup_ubwc_dec_nn functions and use individual
bits instead of just specifying the value to be programmed to the
UBWC_STATIC register.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
---
 drivers/gpu/drm/msm/msm_mdss.c | 17 +++++++++++++----
 drivers/gpu/drm/msm/msm_mdss.h |  1 -
 2 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/msm/msm_mdss.c b/drivers/gpu/drm/msm/msm_mdss.c
index 7704e1c9eb2a..0b49187c52de 100644
--- a/drivers/gpu/drm/msm/msm_mdss.c
+++ b/drivers/gpu/drm/msm/msm_mdss.c
@@ -166,8 +166,16 @@ static int _msm_mdss_irq_domain_add(struct msm_mdss *msm_mdss)
 static void msm_mdss_setup_ubwc_dec_20(struct msm_mdss *msm_mdss)
 {
 	const struct msm_mdss_data *data = msm_mdss->mdss_data;
+	u32 value = MDSS_UBWC_STATIC_UBWC_SWIZZLE(data->ubwc_swizzle) |
+		    MDSS_UBWC_STATIC_HIGHEST_BANK_BIT(data->highest_bank_bit);
 
-	writel_relaxed(data->ubwc_static, msm_mdss->mmio + REG_MDSS_UBWC_STATIC);
+	if (data->unknown_3)
+		value |= MDSS_UBWC_STATIC_UNKNOWN_3;
+
+	if (data->ubwc_enc_version == UBWC_1_0)
+		value |= MDSS_UBWC_STATIC_UNKNOWN_8;
+
+	writel_relaxed(value, msm_mdss->mmio + REG_MDSS_UBWC_STATIC);
 }
 
 static void msm_mdss_setup_ubwc_dec_30(struct msm_mdss *msm_mdss)
@@ -577,7 +585,8 @@ static const struct msm_mdss_data qcm2290_data = {
 static const struct msm_mdss_data sc7180_data = {
 	.ubwc_enc_version = UBWC_2_0,
 	.ubwc_dec_version = UBWC_2_0,
-	.ubwc_static = 0x1e,
+	.ubwc_swizzle = 6,
+	.unknown_3 = true,
 	.highest_bank_bit = 0x1,
 	.reg_bus_bw = 76800,
 };
@@ -628,7 +637,7 @@ static const struct msm_mdss_data sm6350_data = {
 	.ubwc_enc_version = UBWC_2_0,
 	.ubwc_dec_version = UBWC_2_0,
 	.ubwc_swizzle = 6,
-	.ubwc_static = 0x1e,
+	.unknown_3 = true,
 	.highest_bank_bit = 1,
 	.reg_bus_bw = 76800,
 };
@@ -651,7 +660,7 @@ static const struct msm_mdss_data sm6115_data = {
 	.ubwc_enc_version = UBWC_1_0,
 	.ubwc_dec_version = UBWC_2_0,
 	.ubwc_swizzle = 7,
-	.ubwc_static = 0x11f,
+	.unknown_3 = true,
 	.highest_bank_bit = 0x1,
 	.reg_bus_bw = 76800,
 };
diff --git a/drivers/gpu/drm/msm/msm_mdss.h b/drivers/gpu/drm/msm/msm_mdss.h
index 69095c18ab4a..521d4e6b8043 100644
--- a/drivers/gpu/drm/msm/msm_mdss.h
+++ b/drivers/gpu/drm/msm/msm_mdss.h
@@ -11,7 +11,6 @@ struct msm_mdss_data {
 	/* can be read from register 0x58 */
 	u32 ubwc_dec_version;
 	u32 ubwc_swizzle;
-	u32 ubwc_static;
 	u32 highest_bank_bit;
 	bool unknown_3;
 	bool macrotile_mode;

-- 
2.39.5