[PATCH v7 0/8] add DSC 1.2 dpu supports

[PATCH v7 0/8] add DSC 1.2 dpu supports

[Kuogee Hsieh]

This series adds the DPU side changes to support DSC 1.2 encoder. This
was validated with both DSI DSC 1.2 panel and DP DSC 1.2 monitor.
The DSI and DP parts will be pushed later on top of this change.
This seriel is rebase on [1], [2] and catalog fixes from rev-4 of [3].

[1]: https://patchwork.freedesktop.org/series/116851/
[2]: https://patchwork.freedesktop.org/series/116615/
[3]: https://patchwork.freedesktop.org/series/112332/

Abhinav Kumar (2):
  drm/msm/dpu: add dsc blocks for remaining chipsets in catalog
  drm/msm/dpu: add DSC 1.2 hw blocks for relevant chipsets

Kuogee Hsieh (6):
  drm/msm/dpu: add DPU_PINGPONG_DSC feature bit for DPU < 7.0.0
  drm/msm/dpu: test DPU_PINGPONG_DSC bit before assign DSC ops to
    PINGPONG
  drm/msm/dpu: Introduce PINGPONG_NONE to disconnect DSC from PINGPONG
  drm/msm/dpu: add support for DSC encoder v1.2 engine
  drm/msm/dpu: separate DSC flush update out of interface
  drm/msm/dpu: tear down DSC data path when DSC disabled

 drivers/gpu/drm/msm/Makefile                       |   1 +
 .../drm/msm/disp/dpu1/catalog/dpu_3_0_msm8998.h    |   7 +
 .../drm/msm/disp/dpu1/catalog/dpu_5_1_sc8180x.h    |  11 +
 .../gpu/drm/msm/disp/dpu1/catalog/dpu_7_0_sm8350.h |  14 +
 .../gpu/drm/msm/disp/dpu1/catalog/dpu_7_2_sc7280.h |   7 +
 .../drm/msm/disp/dpu1/catalog/dpu_8_0_sc8280xp.h   |  16 +
 .../gpu/drm/msm/disp/dpu1/catalog/dpu_8_1_sm8450.h |  14 +
 .../gpu/drm/msm/disp/dpu1/catalog/dpu_9_0_sm8550.h |  14 +
 drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c        |  60 +++-
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c     |  31 +-
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h     |  36 +-
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c         |  29 +-
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h         |  10 +
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.c         |  15 +-
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.h         |  15 +-
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc_1_2.c     | 383 +++++++++++++++++++++
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_mdss.h        |   3 +-
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c    |   6 +
 drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c             |   7 +-
 19 files changed, 652 insertions(+), 27 deletions(-)
 create mode 100644 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc_1_2.c

-- 
2.7.4

[PATCH v7 1/8] drm/msm/dpu: add dsc blocks for remaining chipsets in catalog

[Kuogee Hsieh]

From: Abhinav Kumar <quic_abhinavk@quicinc.com>

There are some platforms has DSC blocks but it is not declared at catalog.
For completeness, this patch adds DSC blocks for platforms which missed
them.

Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_3_0_msm8998.h |  7 +++++++
 drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_1_sc8180x.h | 11 +++++++++++
 2 files changed, 18 insertions(+)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_3_0_msm8998.h b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_3_0_msm8998.h
index c0dd477..521cfd5 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_3_0_msm8998.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_3_0_msm8998.h
@@ -126,6 +126,11 @@ static const struct dpu_pingpong_cfg msm8998_pp[] = {
 			DPU_IRQ_IDX(MDP_SSPP_TOP0_INTR, 15)),
 };
 
+static const struct dpu_dsc_cfg msm8998_dsc[] = {
+	DSC_BLK("dsc_0", DSC_0, 0x80000, 0),
+	DSC_BLK("dsc_1", DSC_1, 0x80400, 0),
+};
+
 static const struct dpu_dspp_cfg msm8998_dspp[] = {
 	DSPP_BLK("dspp_0", DSPP_0, 0x54000, DSPP_MSM8998_MASK,
 		 &msm8998_dspp_sblk),
@@ -199,6 +204,8 @@ const struct dpu_mdss_cfg dpu_msm8998_cfg = {
 	.dspp = msm8998_dspp,
 	.pingpong_count = ARRAY_SIZE(msm8998_pp),
 	.pingpong = msm8998_pp,
+	.dsc_count = ARRAY_SIZE(msm8998_dsc),
+	.dsc = msm8998_dsc,
 	.intf_count = ARRAY_SIZE(msm8998_intf),
 	.intf = msm8998_intf,
 	.vbif_count = ARRAY_SIZE(msm8998_vbif),
diff --git a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_1_sc8180x.h b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_1_sc8180x.h
index e8057a1..fec1665 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_1_sc8180x.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_1_sc8180x.h
@@ -142,6 +142,15 @@ static const struct dpu_merge_3d_cfg sc8180x_merge_3d[] = {
 	MERGE_3D_BLK("merge_3d_2", MERGE_3D_2, 0x83200),
 };
 
+static const struct dpu_dsc_cfg sc8180x_dsc[] = {
+	DSC_BLK("dsc_0", DSC_0, 0x80000, BIT(DPU_DSC_OUTPUT_CTRL)),
+	DSC_BLK("dsc_1", DSC_1, 0x80400, BIT(DPU_DSC_OUTPUT_CTRL)),
+	DSC_BLK("dsc_2", DSC_2, 0x80800, BIT(DPU_DSC_OUTPUT_CTRL)),
+	DSC_BLK("dsc_3", DSC_3, 0x80c00, BIT(DPU_DSC_OUTPUT_CTRL)),
+	DSC_BLK("dsc_4", DSC_4, 0x81000, BIT(DPU_DSC_OUTPUT_CTRL)),
+	DSC_BLK("dsc_5", DSC_5, 0x81400, BIT(DPU_DSC_OUTPUT_CTRL)),
+};
+
 static const struct dpu_intf_cfg sc8180x_intf[] = {
 	INTF_BLK("intf_0", INTF_0, 0x6a000, 0x280, INTF_DP, MSM_DP_CONTROLLER_0, 24, INTF_SC7180_MASK,
 			DPU_IRQ_IDX(MDP_SSPP_TOP0_INTR, 24),
@@ -206,6 +215,8 @@ const struct dpu_mdss_cfg dpu_sc8180x_cfg = {
 	.mixer = sc8180x_lm,
 	.pingpong_count = ARRAY_SIZE(sc8180x_pp),
 	.pingpong = sc8180x_pp,
+	.dsc_count = ARRAY_SIZE(sc8180x_dsc),
+	.dsc = sc8180x_dsc,
 	.merge_3d_count = ARRAY_SIZE(sc8180x_merge_3d),
 	.merge_3d = sc8180x_merge_3d,
 	.intf_count = ARRAY_SIZE(sc8180x_intf),
-- 
2.7.4

[PATCH v7 2/8] drm/msm/dpu: add DPU_PINGPONG_DSC feature bit for DPU < 7.0.0

[Kuogee Hsieh]

DPU < 7.0.0 requires the PINGPONG block to be involved during
DSC setting up. Since DPU >= 7.0.0, enabling and starting the DSC
encoder engine was moved to INTF with the help of the flush mechanism.
Add a DPU_PINGPONG_DSC feature bit to restrict the availability of
dpu_hw_pp_setup_dsc() and dpu_hw_pp_dsc_{enable,disable}() on the
PINGPONG block to DPU < 7.0.0 hardware, as the registers are not
available [in the PINGPONG block] on DPU 7.0.0 and higher anymore.
Add DPU_PINGPONG_DSC to PINGPONG_SDM845_MASK, PINGPONG_SDM845_TE2_MASK
and PINGPONG_SM8150_MASK which is used for all DPU < 7.0 chipsets.

changes in v6:
-- split patches and rearrange to keep catalog related files at this patch

changes in v7:
-- rewording commit text as suggested at review comments

Signed-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c | 6 +++---
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h | 4 +++-
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
index 82b58c6..78e4bf6 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
@@ -76,13 +76,13 @@
 	(BIT(DPU_DIM_LAYER) | BIT(DPU_MIXER_COMBINED_ALPHA))
 
 #define PINGPONG_SDM845_MASK \
-	(BIT(DPU_PINGPONG_DITHER) | BIT(DPU_PINGPONG_TE))
+	(BIT(DPU_PINGPONG_DITHER) | BIT(DPU_PINGPONG_TE) | BIT(DPU_PINGPONG_DSC))
 
 #define PINGPONG_SDM845_TE2_MASK \
-	(PINGPONG_SDM845_MASK | BIT(DPU_PINGPONG_TE2))
+	(PINGPONG_SDM845_MASK | BIT(DPU_PINGPONG_TE2) | BIT(DPU_PINGPONG_DSC))
 
 #define PINGPONG_SM8150_MASK \
-	(BIT(DPU_PINGPONG_DITHER))
+	(BIT(DPU_PINGPONG_DITHER) | BIT(DPU_PINGPONG_DSC))
 
 #define CTL_SC7280_MASK \
 	(BIT(DPU_CTL_ACTIVE_CFG) | \
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
index 6ee48f0..dc0a4da 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
@@ -144,7 +144,8 @@ enum {
  * @DPU_PINGPONG_TE2        Additional tear check block for split pipes
  * @DPU_PINGPONG_SPLIT      PP block supports split fifo
  * @DPU_PINGPONG_SLAVE      PP block is a suitable slave for split fifo
- * @DPU_PINGPONG_DITHER,    Dither blocks
+ * @DPU_PINGPONG_DITHER     Dither blocks
+ * @DPU_PINGPONG_DSC        PP ops functions required for DSC
  * @DPU_PINGPONG_MAX
  */
 enum {
@@ -153,6 +154,7 @@ enum {
 	DPU_PINGPONG_SPLIT,
 	DPU_PINGPONG_SLAVE,
 	DPU_PINGPONG_DITHER,
+	DPU_PINGPONG_DSC,
 	DPU_PINGPONG_MAX
 };
 
-- 
2.7.4

[PATCH v7 3/8] drm/msm/dpu: test DPU_PINGPONG_DSC bit before assign DSC ops to PINGPONG

[Kuogee Hsieh]

DPU < 7.0.0 has DPU_PINGPONG_DSC feature bit set to indicate it requires
both dpu_hw_pp_setup_dsc() and dpu_hw_pp_dsc_{enable,disable}() to be
executed to complete DSC configuration if DSC hardware block is present.
Hence test DPU_PINGPONG_DSC feature bit and assign DSC related functions
to the ops of PINGPONG block accordingly if DPU_PINGPONG_DSC bit is set.

changes in v6:
-- split patches and keep the function file handles DPU_PINGPONG_DSC bit at this patch

Signed-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c
index 79e4576..e7f47a4 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c
@@ -295,6 +295,12 @@ static void _setup_pingpong_ops(struct dpu_hw_pingpong *c,
 	c->ops.enable_dsc = dpu_hw_pp_dsc_enable;
 	c->ops.disable_dsc = dpu_hw_pp_dsc_disable;
 
+	if (test_bit(DPU_PINGPONG_DSC, &features)) {
+		c->ops.setup_dsc = dpu_hw_pp_setup_dsc;
+		c->ops.enable_dsc = dpu_hw_pp_dsc_enable;
+		c->ops.disable_dsc = dpu_hw_pp_dsc_disable;
+	}
+
 	if (test_bit(DPU_PINGPONG_DITHER, &features))
 		c->ops.setup_dither = dpu_hw_pp_setup_dither;
 };
-- 
2.7.4

[PATCH v7 4/8] drm/msm/dpu: Introduce PINGPONG_NONE to disconnect DSC from PINGPONG

[Kuogee Hsieh]

Disabling the crossbar mux between DSC and PINGPONG currently
requires a bogus enum dpu_pingpong value to be passed when calling
dsc_bind_pingpong_blk() with enable=false, even though the register
value written is independent of the current PINGPONG block.  Replace
that `bool enable` parameter with a new PINGPONG_NONE dpu_pingpong
flag that triggers the write of the "special" 0xF "crossbar
disabled" value to the register instead.

Changes in v4:
-- more details to commit text

Changes in v5:
-- rewording commit text suggested by Marijn
-- add DRM_DEBUG_KMS for DSC unbinding case

Signed-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c |  2 +-
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.c  | 15 ++++++++-------
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.h  |  1 -
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_mdss.h |  3 ++-
 4 files changed, 11 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
index cf1de5d..ffa6f04 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@ -1850,7 +1850,7 @@ static void dpu_encoder_dsc_pipe_cfg(struct dpu_hw_dsc *hw_dsc,
 		hw_pp->ops.setup_dsc(hw_pp);
 
 	if (hw_dsc->ops.dsc_bind_pingpong_blk)
-		hw_dsc->ops.dsc_bind_pingpong_blk(hw_dsc, true, hw_pp->idx);
+		hw_dsc->ops.dsc_bind_pingpong_blk(hw_dsc, hw_pp->idx);
 
 	if (hw_pp->ops.enable_dsc)
 		hw_pp->ops.enable_dsc(hw_pp);
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.c
index 4a6bbcc..47cb9f3 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.c
@@ -157,7 +157,6 @@ static void dpu_hw_dsc_config_thresh(struct dpu_hw_dsc *hw_dsc,
 
 static void dpu_hw_dsc_bind_pingpong_blk(
 		struct dpu_hw_dsc *hw_dsc,
-		bool enable,
 		const enum dpu_pingpong pp)
 {
 	struct dpu_hw_blk_reg_map *c = &hw_dsc->hw;
@@ -166,14 +165,16 @@ static void dpu_hw_dsc_bind_pingpong_blk(
 
 	dsc_ctl_offset = DSC_CTL(hw_dsc->idx);
 
-	if (enable)
+	if (pp)
 		mux_cfg = (pp - PINGPONG_0) & 0x7;
 
-	DRM_DEBUG_KMS("%s dsc:%d %s pp:%d\n",
-			enable ? "Binding" : "Unbinding",
-			hw_dsc->idx - DSC_0,
-			enable ? "to" : "from",
-			pp - PINGPONG_0);
+	if (pp)
+		DRM_DEBUG_KMS("Binding dsc:%d to pp:%d\n",
+				hw_dsc->idx - DSC_0,
+				pp - PINGPONG_0);
+	else
+		DRM_DEBUG_KMS("Unbinding dsc:%d from any pp\n",
+				hw_dsc->idx - DSC_0);
 
 	DPU_REG_WRITE(c, dsc_ctl_offset, mux_cfg);
 }
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.h
index 287ec5f..138080a 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.h
@@ -44,7 +44,6 @@ struct dpu_hw_dsc_ops {
 				  struct drm_dsc_config *dsc);
 
 	void (*dsc_bind_pingpong_blk)(struct dpu_hw_dsc *hw_dsc,
-				  bool enable,
 				  enum dpu_pingpong pp);
 };
 
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_mdss.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_mdss.h
index 1913a19..02a0f48 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_mdss.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_mdss.h
@@ -191,7 +191,8 @@ enum dpu_dsc {
 };
 
 enum dpu_pingpong {
-	PINGPONG_0 = 1,
+	PINGPONG_NONE,
+	PINGPONG_0,
 	PINGPONG_1,
 	PINGPONG_2,
 	PINGPONG_3,
-- 
2.7.4

[PATCH v7 5/8] drm/msm/dpu: add support for DSC encoder v1.2 engine

[Kuogee Hsieh]

Add support for DSC 1.2 by providing the necessary hooks to program
the DPU DSC 1.2 encoder.

Changes in v3:
-- fixed kernel test rebot report that "__iomem *off" is declared but not
   used at dpu_hw_dsc_config_1_2()
-- unrolling thresh loops

Changes in v4:
-- delete DPU_DSC_HW_REV_1_1
-- delete off and used real register name directly

Changes in v7:
-- replace offset with sblk->enc.base
-- replace ss with slice

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
---
 drivers/gpu/drm/msm/Makefile                   |   1 +
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h |  32 ++-
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.h     |  14 +-
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc_1_2.c | 383 +++++++++++++++++++++++++
 drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c         |   7 +-
 5 files changed, 433 insertions(+), 4 deletions(-)
 create mode 100644 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc_1_2.c

diff --git a/drivers/gpu/drm/msm/Makefile b/drivers/gpu/drm/msm/Makefile
index b814fc8..b9af5e4 100644
--- a/drivers/gpu/drm/msm/Makefile
+++ b/drivers/gpu/drm/msm/Makefile
@@ -65,6 +65,7 @@ msm-$(CONFIG_DRM_MSM_DPU) += \
 	disp/dpu1/dpu_hw_catalog.o \
 	disp/dpu1/dpu_hw_ctl.o \
 	disp/dpu1/dpu_hw_dsc.o \
+	disp/dpu1/dpu_hw_dsc_1_2.o \
 	disp/dpu1/dpu_hw_interrupts.o \
 	disp/dpu1/dpu_hw_intf.o \
 	disp/dpu1/dpu_hw_lm.o \
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
index dc0a4da..4eda2cc 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 /*
- * Copyright (c) 2022. Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2022-2023, Qualcomm Innovation Center, Inc. All rights reserved.
  * Copyright (c) 2015-2018, 2020 The Linux Foundation. All rights reserved.
  */
 
@@ -244,12 +244,18 @@ enum {
 };
 
 /**
- * DSC features
+ * DSC sub-blocks/features
  * @DPU_DSC_OUTPUT_CTRL       Configure which PINGPONG block gets
  *                            the pixel output from this DSC.
+ * @DPU_DSC_HW_REV_1_2        DSC block supports dsc 1.1 and 1.2
+ * @DPU_DSC_NATIVE_422_EN     Supports native422 and native420 encoding
+ * @DPU_DSC_MAX
  */
 enum {
 	DPU_DSC_OUTPUT_CTRL = 0x1,
+	DPU_DSC_HW_REV_1_2,
+	DPU_DSC_NATIVE_422_EN,
+	DPU_DSC_MAX
 };
 
 /**
@@ -306,6 +312,14 @@ struct dpu_pp_blk {
 };
 
 /**
+ * struct dpu_dsc_blk - DSC Encoder sub-blk information
+ * @info:   HW register and features supported by this sub-blk
+ */
+struct dpu_dsc_blk {
+	DPU_HW_SUBBLK_INFO;
+};
+
+/**
  * enum dpu_qos_lut_usage - define QoS LUT use cases
  */
 enum dpu_qos_lut_usage {
@@ -452,6 +466,17 @@ struct dpu_pingpong_sub_blks {
 };
 
 /**
+ * struct dpu_dsc_sub_blks - DSC sub-blks
+ * @enc: DSC encoder sub block
+ * @ctl: DSC controller sub block
+ *
+ */
+struct dpu_dsc_sub_blks {
+	struct dpu_dsc_blk enc;
+	struct dpu_dsc_blk ctl;
+};
+
+/**
  * dpu_clk_ctrl_type - Defines top level clock control signals
  */
 enum dpu_clk_ctrl_type {
@@ -605,10 +630,13 @@ struct dpu_merge_3d_cfg  {
  * struct dpu_dsc_cfg - information of DSC blocks
  * @id                 enum identifying this block
  * @base               register offset of this block
+ * @len:               length of hardware block
  * @features           bit mask identifying sub-blocks/features
+ * @sblk               sub-blocks information
  */
 struct dpu_dsc_cfg {
 	DPU_HW_BLK_INFO;
+	const struct dpu_dsc_sub_blks *sblk;
 };
 
 /**
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.h
index 138080a..bdff74d 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.h
@@ -1,5 +1,8 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
-/* Copyright (c) 2020-2022, Linaro Limited */
+/*
+ * Copyright (c) 2020-2022, Linaro Limited
+ * Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved
+ */
 
 #ifndef _DPU_HW_DSC_H
 #define _DPU_HW_DSC_H
@@ -69,6 +72,15 @@ struct dpu_hw_dsc *dpu_hw_dsc_init(const struct dpu_dsc_cfg *cfg,
 		void __iomem *addr);
 
 /**
+ * dpu_hw_dsc_init_1_2 - initializes the v1.2 DSC hw driver block
+ * @cfg:  DSC catalog entry for which driver object is required
+ * @addr: Mapped register io address of MDP
+ * Returns: Error code or allocated dpu_hw_dsc context
+ */
+struct dpu_hw_dsc *dpu_hw_dsc_init_1_2(const struct dpu_dsc_cfg *cfg,
+		void __iomem *addr);
+
+/**
  * dpu_hw_dsc_destroy - destroys dsc driver context
  * @dsc:   Pointer to dsc driver context returned by dpu_hw_dsc_init
  */
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc_1_2.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc_1_2.c
new file mode 100644
index 00000000..dd77d03
--- /dev/null
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc_1_2.c
@@ -0,0 +1,383 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2020-2021, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved
+ */
+
+#include <drm/display/drm_dsc_helper.h>
+
+#include "dpu_kms.h"
+#include "dpu_hw_catalog.h"
+#include "dpu_hwio.h"
+#include "dpu_hw_mdss.h"
+#include "dpu_hw_dsc.h"
+
+#define DSC_CMN_MAIN_CNF           0x00
+
+/* DPU_DSC_ENC register offsets */
+#define ENC_DF_CTRL                0x00
+#define ENC_GENERAL_STATUS         0x04
+#define ENC_HSLICE_STATUS          0x08
+#define ENC_OUT_STATUS             0x0C
+#define ENC_INT_STAT               0x10
+#define ENC_INT_CLR                0x14
+#define ENC_INT_MASK               0x18
+#define DSC_MAIN_CONF              0x30
+#define DSC_PICTURE_SIZE           0x34
+#define DSC_SLICE_SIZE             0x38
+#define DSC_MISC_SIZE              0x3C
+#define DSC_HRD_DELAYS             0x40
+#define DSC_RC_SCALE               0x44
+#define DSC_RC_SCALE_INC_DEC       0x48
+#define DSC_RC_OFFSETS_1           0x4C
+#define DSC_RC_OFFSETS_2           0x50
+#define DSC_RC_OFFSETS_3           0x54
+#define DSC_RC_OFFSETS_4           0x58
+#define DSC_FLATNESS_QP            0x5C
+#define DSC_RC_MODEL_SIZE          0x60
+#define DSC_RC_CONFIG              0x64
+#define DSC_RC_BUF_THRESH_0        0x68
+#define DSC_RC_BUF_THRESH_1        0x6C
+#define DSC_RC_BUF_THRESH_2        0x70
+#define DSC_RC_BUF_THRESH_3        0x74
+#define DSC_RC_MIN_QP_0            0x78
+#define DSC_RC_MIN_QP_1            0x7C
+#define DSC_RC_MIN_QP_2            0x80
+#define DSC_RC_MAX_QP_0            0x84
+#define DSC_RC_MAX_QP_1            0x88
+#define DSC_RC_MAX_QP_2            0x8C
+#define DSC_RC_RANGE_BPG_OFFSETS_0 0x90
+#define DSC_RC_RANGE_BPG_OFFSETS_1 0x94
+#define DSC_RC_RANGE_BPG_OFFSETS_2 0x98
+
+/* DPU_DSC_CTL register offsets */
+#define DSC_CTL                    0x00
+#define DSC_CFG                    0x04
+#define DSC_DATA_IN_SWAP           0x08
+#define DSC_CLK_CTRL               0x0C
+
+
+static inline int _dsc_calc_ob_max_addr(struct dpu_hw_dsc *hw_dsc, int num_ss)
+{
+	int max_addr = 2400 / num_ss;
+
+	if (hw_dsc->caps->features & BIT(DPU_DSC_NATIVE_422_EN))
+		max_addr /= 2;
+
+	return max_addr - 1;
+};
+
+static inline void dpu_hw_dsc_disable_1_2(struct dpu_hw_dsc *hw_dsc)
+{
+	struct dpu_hw_blk_reg_map *hw;
+	const struct dpu_dsc_sub_blks *sblk;
+
+	if (!hw_dsc)
+		return;
+
+	hw = &hw_dsc->hw;
+	sblk = hw_dsc->caps->sblk;
+	DPU_REG_WRITE(hw, sblk->ctl.base + DSC_CFG, 0);
+
+	DPU_REG_WRITE(hw, sblk->enc.base + ENC_DF_CTRL, 0);
+	DPU_REG_WRITE(hw, sblk->enc.base + DSC_MAIN_CONF, 0);
+}
+
+static inline void dpu_hw_dsc_config_1_2(struct dpu_hw_dsc *hw_dsc,
+			      		 struct drm_dsc_config *dsc,
+			      		 u32 mode,
+			      		 u32 initial_lines)
+{
+	struct dpu_hw_blk_reg_map *hw;
+	const struct dpu_dsc_sub_blks *sblk;
+	u32 data = 0;
+	u32 det_thresh_flatness;
+	u32 num_active_slice_per_enc;
+	u32 bpp;
+
+	if (!hw_dsc || !dsc)
+		return;
+
+	hw = &hw_dsc->hw;
+
+	sblk = hw_dsc->caps->sblk;
+
+	if (mode & DSC_MODE_SPLIT_PANEL)
+		data |= BIT(0);
+
+	if (mode & DSC_MODE_MULTIPLEX)
+		data |= BIT(1);
+
+	num_active_slice_per_enc = dsc->slice_count;
+	if (mode & DSC_MODE_MULTIPLEX)
+		num_active_slice_per_enc = dsc->slice_count >> 1;
+
+	data |= (num_active_slice_per_enc & 0x3) << 7;
+
+	DPU_REG_WRITE(hw, DSC_CMN_MAIN_CNF, data);
+
+	data = (initial_lines & 0xff);
+
+	if (mode & DSC_MODE_VIDEO)
+		data |= BIT(9);
+
+	data |= (_dsc_calc_ob_max_addr(hw_dsc, num_active_slice_per_enc) << 18);
+
+	DPU_REG_WRITE(hw, sblk->enc.base + ENC_DF_CTRL, data);
+
+	data = (dsc->dsc_version_minor & 0xf) << 28;
+	if (dsc->dsc_version_minor == 0x2) {
+		if (dsc->native_422)
+			data |= BIT(22);
+		if (dsc->native_420)
+			data |= BIT(21);
+	}
+
+	bpp = dsc->bits_per_pixel;
+	/* as per hw requirement bpp should be programmed
+	 * twice the actual value in case of 420 or 422 encoding
+	 */
+	if (dsc->native_422 || dsc->native_420)
+		bpp = 2 * bpp;
+	data |= (dsc->block_pred_enable ? 1 : 0) << 20;
+	data |= bpp << 10;
+	data |= (dsc->line_buf_depth & 0xf) << 6;
+	data |= dsc->convert_rgb << 4;
+	data |= dsc->bits_per_component & 0xf;
+
+	DPU_REG_WRITE(hw, sblk->enc.base + DSC_MAIN_CONF, data);
+
+	data = (dsc->pic_width & 0xffff) |
+		((dsc->pic_height & 0xffff) << 16);
+
+	DPU_REG_WRITE(hw, sblk->enc.base + DSC_PICTURE_SIZE, data);
+
+	data = (dsc->slice_width & 0xffff) |
+		((dsc->slice_height & 0xffff) << 16);
+
+	DPU_REG_WRITE(hw, sblk->enc.base + DSC_SLICE_SIZE, data);
+
+	DPU_REG_WRITE(hw, sblk->enc.base + DSC_MISC_SIZE,
+			(dsc->slice_chunk_size) & 0xffff);
+
+	data = (dsc->initial_xmit_delay & 0xffff) |
+		((dsc->initial_dec_delay & 0xffff) << 16);
+
+	DPU_REG_WRITE(hw, sblk->enc.base + DSC_HRD_DELAYS, data);
+
+	DPU_REG_WRITE(hw, sblk->enc.base + DSC_RC_SCALE,
+			dsc->initial_scale_value & 0x3f);
+
+	data = (dsc->scale_increment_interval & 0xffff) |
+		((dsc->scale_decrement_interval & 0x7ff) << 16);
+
+	DPU_REG_WRITE(hw, sblk->enc.base + DSC_RC_SCALE_INC_DEC, data);
+
+	data = (dsc->first_line_bpg_offset & 0x1f) |
+		((dsc->second_line_bpg_offset & 0x1f) << 5);
+
+	DPU_REG_WRITE(hw, sblk->enc.base + DSC_RC_OFFSETS_1, data);
+
+	data = (dsc->nfl_bpg_offset & 0xffff) |
+		((dsc->slice_bpg_offset & 0xffff) << 16);
+
+	DPU_REG_WRITE(hw, sblk->enc.base + DSC_RC_OFFSETS_2, data);
+
+	data = (dsc->initial_offset & 0xffff) |
+		((dsc->final_offset & 0xffff) << 16);
+
+	DPU_REG_WRITE(hw, sblk->enc.base + DSC_RC_OFFSETS_3, data);
+
+	data = (dsc->nsl_bpg_offset & 0xffff) |
+		((dsc->second_line_offset_adj & 0xffff) << 16);
+
+	DPU_REG_WRITE(hw, sblk->enc.base + DSC_RC_OFFSETS_4, data);
+
+	data = (dsc->flatness_min_qp & 0x1f);
+	data |= (dsc->flatness_max_qp & 0x1f) << 5;
+
+	det_thresh_flatness = drm_dsc_calculate_flatness_det_thresh(dsc);
+	data |= (det_thresh_flatness & 0xff) << 10;
+
+	DPU_REG_WRITE(hw, sblk->enc.base + DSC_FLATNESS_QP, data);
+
+	DPU_REG_WRITE(hw, sblk->enc.base + DSC_RC_MODEL_SIZE,
+			(dsc->rc_model_size) & 0xffff);
+
+	data = dsc->rc_edge_factor & 0xf;
+	data |= (dsc->rc_quant_incr_limit0 & 0x1f) << 8;
+	data |= (dsc->rc_quant_incr_limit1 & 0x1f) << 13;
+	data |= (dsc->rc_tgt_offset_high & 0xf) << 20;
+	data |= (dsc->rc_tgt_offset_low & 0xf) << 24;
+
+	DPU_REG_WRITE(hw, sblk->enc.base + DSC_RC_CONFIG, data);
+
+	/* program the dsc wrapper */
+	data = BIT(0); /* encoder enable */
+	if (dsc->native_422)
+		data |= BIT(8);
+	else if (dsc->native_420)
+		data |= BIT(9);
+	if (!dsc->convert_rgb)
+		data |= BIT(10);
+	if (dsc->bits_per_component == 8)
+		data |= BIT(11);
+	if (mode & DSC_MODE_SPLIT_PANEL)
+		data |= BIT(12);
+	if (mode & DSC_MODE_MULTIPLEX)
+		data |= BIT(13);
+	if (!(mode & DSC_MODE_VIDEO))
+		data |= BIT(17);
+
+	DPU_REG_WRITE(hw, sblk->ctl.base + DSC_CFG, data);
+}
+
+static inline void dpu_hw_dsc_config_thresh_1_2(struct dpu_hw_dsc *hw_dsc,
+						struct drm_dsc_config *dsc)
+{
+	struct dpu_hw_blk_reg_map *hw;
+	const struct dpu_dsc_sub_blks *sblk;
+	struct drm_dsc_rc_range_parameters *rc;
+
+	if (!hw_dsc || !dsc)
+		return;
+
+	hw = &hw_dsc->hw;
+
+	sblk = hw_dsc->caps->sblk;
+
+	rc = dsc->rc_range_params;
+
+	/*
+	 * With BUF_THRESH -- 14 in total
+	 * each register contains 4 thresh values with the last register
+	 * containing only 2 thresh values
+	 */
+	DPU_REG_WRITE(hw, sblk->enc.base + DSC_RC_BUF_THRESH_0,
+		      (dsc->rc_buf_thresh[0] << 0) |
+		      (dsc->rc_buf_thresh[1] << 8) |
+		      (dsc->rc_buf_thresh[2] << 16) |
+		      (dsc->rc_buf_thresh[3] << 24));
+	DPU_REG_WRITE(hw, sblk->enc.base + DSC_RC_BUF_THRESH_1,
+		      (dsc->rc_buf_thresh[4] << 0) |
+		      (dsc->rc_buf_thresh[5] << 8) |
+		      (dsc->rc_buf_thresh[6] << 16) |
+		      (dsc->rc_buf_thresh[7] << 24));
+	DPU_REG_WRITE(hw, sblk->enc.base + DSC_RC_BUF_THRESH_2,
+		      (dsc->rc_buf_thresh[8] << 0) |
+		      (dsc->rc_buf_thresh[9] << 8) |
+		      (dsc->rc_buf_thresh[10] << 16) |
+		      (dsc->rc_buf_thresh[11] << 24));
+	DPU_REG_WRITE(hw, sblk->enc.base + DSC_RC_BUF_THRESH_3,
+		      (dsc->rc_buf_thresh[12] << 0) |
+		      (dsc->rc_buf_thresh[13] << 8));
+
+	/*
+	 * with min/max_QP -- 5 bits each
+	 * each register contains 5 min_qp or max_qp for total of 15
+	 *
+	 * With BPG_OFFSET -- 6 bits each
+	 * each register contains 5 BPG_offset for total of 15
+	 */
+	DPU_REG_WRITE(hw, sblk->enc.base + DSC_RC_MIN_QP_0,
+		      (rc[0].range_min_qp << 0) |
+		      (rc[1].range_min_qp << 5) |
+		      (rc[2].range_min_qp << 10) |
+		      (rc[3].range_min_qp << 15) |
+		      (rc[4].range_min_qp << 20));
+	DPU_REG_WRITE(hw, sblk->enc.base + DSC_RC_MAX_QP_0,
+		      (rc[0].range_max_qp << 0) |
+		      (rc[1].range_max_qp << 5) |
+		      (rc[2].range_max_qp << 10) |
+		      (rc[3].range_max_qp << 15) |
+		      (rc[4].range_max_qp << 20));
+	DPU_REG_WRITE(hw, sblk->enc.base + DSC_RC_RANGE_BPG_OFFSETS_0,
+		      (rc[0].range_bpg_offset << 0) |
+		      (rc[1].range_bpg_offset << 6) |
+		      (rc[2].range_bpg_offset << 12) |
+		      (rc[3].range_bpg_offset << 18) |
+		      (rc[4].range_bpg_offset << 24));
+
+	DPU_REG_WRITE(hw, sblk->enc.base + DSC_RC_MIN_QP_1,
+		      (rc[5].range_min_qp << 0) |
+		      (rc[6].range_min_qp << 5) |
+		      (rc[7].range_min_qp << 10) |
+		      (rc[8].range_min_qp << 15) |
+		      (rc[9].range_min_qp << 20));
+	DPU_REG_WRITE(hw, sblk->enc.base + DSC_RC_MAX_QP_1,
+		      (rc[5].range_max_qp << 0) |
+		      (rc[6].range_max_qp << 5) |
+		      (rc[7].range_max_qp << 10) |
+		      (rc[8].range_max_qp << 15) |
+		      (rc[9].range_max_qp << 20));
+	DPU_REG_WRITE(hw, sblk->enc.base + DSC_RC_RANGE_BPG_OFFSETS_1,
+		      (rc[5].range_bpg_offset << 0) |
+		      (rc[6].range_bpg_offset << 6) |
+		      (rc[7].range_bpg_offset << 12) |
+		      (rc[8].range_bpg_offset << 18) |
+		      (rc[9].range_bpg_offset << 24));
+
+	DPU_REG_WRITE(hw, sblk->enc.base + DSC_RC_MIN_QP_2,
+		      (rc[10].range_min_qp << 0) |
+		      (rc[11].range_min_qp << 5) |
+		      (rc[12].range_min_qp << 10) |
+		      (rc[13].range_min_qp << 15) |
+		      (rc[14].range_min_qp << 20));
+	DPU_REG_WRITE(hw, sblk->enc.base + DSC_RC_MAX_QP_2,
+		      (rc[10].range_max_qp << 0) |
+		      (rc[11].range_max_qp << 5) |
+		      (rc[12].range_max_qp << 10) |
+		      (rc[13].range_max_qp << 15) |
+		      (rc[14].range_max_qp << 20));
+	DPU_REG_WRITE(hw, sblk->enc.base + DSC_RC_RANGE_BPG_OFFSETS_2,
+		      (rc[10].range_bpg_offset << 0) |
+		      (rc[11].range_bpg_offset << 6) |
+		      (rc[12].range_bpg_offset << 12) |
+		      (rc[13].range_bpg_offset << 18) |
+		      (rc[14].range_bpg_offset << 24));
+}
+
+static inline void dpu_hw_dsc_bind_pingpong_blk_1_2(struct dpu_hw_dsc *hw_dsc,
+						    const enum dpu_pingpong pp)
+{
+	struct dpu_hw_blk_reg_map *hw;
+	const struct dpu_dsc_sub_blks *sblk;
+	int mux_cfg = 0xf; /* Disabled */
+
+	hw = &hw_dsc->hw;
+
+	sblk = hw_dsc->caps->sblk;
+
+	if (pp)
+		mux_cfg = (pp - PINGPONG_0) & 0x7;
+
+	DPU_REG_WRITE(hw, sblk->ctl.base + DSC_CTL, mux_cfg);
+}
+
+static void _setup_dcs_ops_1_2(struct dpu_hw_dsc_ops *ops,
+			       const unsigned long features)
+{
+	ops->dsc_disable = dpu_hw_dsc_disable_1_2;
+	ops->dsc_config = dpu_hw_dsc_config_1_2;
+	ops->dsc_config_thresh = dpu_hw_dsc_config_thresh_1_2;
+	ops->dsc_bind_pingpong_blk = dpu_hw_dsc_bind_pingpong_blk_1_2;
+}
+
+struct dpu_hw_dsc *dpu_hw_dsc_init_1_2(const struct dpu_dsc_cfg *cfg,
+				       void __iomem *addr)
+{
+	struct dpu_hw_dsc *c;
+
+	c = kzalloc(sizeof(*c), GFP_KERNEL);
+	if (!c)
+		return ERR_PTR(-ENOMEM);
+
+	c->hw.blk_addr = addr + cfg->base;
+	c->hw.log_mask = DPU_DBG_MASK_DSC;
+
+	c->idx = cfg->id;
+	c->caps = cfg;
+	_setup_dcs_ops_1_2(&c->ops, c->caps->features);
+
+	return c;
+}
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
index f0fc704..502dd60 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (c) 2016-2018, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.
  */
 
 #define pr_fmt(fmt)	"[drm:%s] " fmt, __func__
@@ -246,7 +247,11 @@ int dpu_rm_init(struct dpu_rm *rm,
 		struct dpu_hw_dsc *hw;
 		const struct dpu_dsc_cfg *dsc = &cat->dsc[i];
 
-		hw = dpu_hw_dsc_init(dsc, mmio);
+		if (test_bit(DPU_DSC_HW_REV_1_2, &dsc->features))
+			hw = dpu_hw_dsc_init_1_2(dsc, mmio);
+		else
+			hw = dpu_hw_dsc_init(dsc, mmio);
+
 		if (IS_ERR_OR_NULL(hw)) {
 			rc = PTR_ERR(hw);
 			DPU_ERROR("failed dsc object creation: err %d\n", rc);
-- 
2.7.4

[PATCH v7 6/8] drm/msm/dpu: separate DSC flush update out of interface

[Kuogee Hsieh]

Current DSC flush update is piggyback inside dpu_hw_ctl_intf_cfg_v1().
This patch separates DSC flush away from dpu_hw_ctl_intf_cfg_v1() by
adding dpu_hw_ctl_update_pending_flush_dsc_v1() to handle both per
DSC engine and DSC flush bits at same time to make it consistent with
the location of flush programming of other dpu sub blocks.

Signed-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 14 ++++++++++++--
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c  | 22 ++++++++++++++++------
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h  | 10 ++++++++++
 3 files changed, 38 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
index ffa6f04..94b805b 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@ -1834,12 +1834,18 @@ dpu_encoder_dsc_initial_line_calc(struct drm_dsc_config *dsc,
 	return DIV_ROUND_UP(total_pixels, dsc->slice_width);
 }
 
-static void dpu_encoder_dsc_pipe_cfg(struct dpu_hw_dsc *hw_dsc,
+static void dpu_encoder_dsc_pipe_cfg(struct dpu_encoder_virt *dpu_enc,
+				     struct dpu_hw_dsc *hw_dsc,
 				     struct dpu_hw_pingpong *hw_pp,
 				     struct drm_dsc_config *dsc,
 				     u32 common_mode,
 				     u32 initial_lines)
 {
+	struct dpu_encoder_phys *cur_master = dpu_enc->cur_master;
+	struct dpu_hw_ctl *ctl;
+
+	ctl = cur_master->hw_ctl;
+
 	if (hw_dsc->ops.dsc_config)
 		hw_dsc->ops.dsc_config(hw_dsc, dsc, common_mode, initial_lines);
 
@@ -1854,6 +1860,9 @@ static void dpu_encoder_dsc_pipe_cfg(struct dpu_hw_dsc *hw_dsc,
 
 	if (hw_pp->ops.enable_dsc)
 		hw_pp->ops.enable_dsc(hw_pp);
+
+	if (ctl->ops.update_pending_flush_dsc)
+		ctl->ops.update_pending_flush_dsc(ctl, hw_dsc->idx);
 }
 
 static void dpu_encoder_prep_dsc(struct dpu_encoder_virt *dpu_enc,
@@ -1898,7 +1907,8 @@ static void dpu_encoder_prep_dsc(struct dpu_encoder_virt *dpu_enc,
 	initial_lines = dpu_encoder_dsc_initial_line_calc(dsc, enc_ip_w);
 
 	for (i = 0; i < MAX_CHANNELS_PER_ENC; i++)
-		dpu_encoder_dsc_pipe_cfg(hw_dsc[i], hw_pp[i], dsc, dsc_common_mode, initial_lines);
+		dpu_encoder_dsc_pipe_cfg(dpu_enc, hw_dsc[i], hw_pp[i], dsc,
+					dsc_common_mode, initial_lines);
 }
 
 void dpu_encoder_prepare_for_kickoff(struct drm_encoder *drm_enc)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
index 4f7cfa9..832a6a7 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
@@ -139,6 +139,11 @@ static inline void dpu_hw_ctl_trigger_flush_v1(struct dpu_hw_ctl *ctx)
 				CTL_DSPP_n_FLUSH(dspp - DSPP_0),
 				ctx->pending_dspp_flush_mask[dspp - DSPP_0]);
 		}
+
+	if (ctx->pending_flush_mask & BIT(DSC_IDX))
+		DPU_REG_WRITE(&ctx->hw, CTL_DSC_FLUSH,
+				ctx->pending_dsc_flush_mask);
+
 	DPU_REG_WRITE(&ctx->hw, CTL_FLUSH, ctx->pending_flush_mask);
 }
 
@@ -285,6 +290,13 @@ static void dpu_hw_ctl_update_pending_flush_merge_3d_v1(struct dpu_hw_ctl *ctx,
 	ctx->pending_flush_mask |= BIT(MERGE_3D_IDX);
 }
 
+static void dpu_hw_ctl_update_pending_flush_dsc_v1(struct dpu_hw_ctl *ctx,
+		enum dpu_dsc dsc_num)
+{
+	ctx->pending_dsc_flush_mask |= BIT(dsc_num - DSC_0);
+	ctx->pending_flush_mask |= BIT(DSC_IDX);
+}
+
 static void dpu_hw_ctl_update_pending_flush_dspp(struct dpu_hw_ctl *ctx,
 	enum dpu_dspp dspp, u32 dspp_sub_blk)
 {
@@ -502,9 +514,6 @@ static void dpu_hw_ctl_intf_cfg_v1(struct dpu_hw_ctl *ctx,
 	if ((test_bit(DPU_CTL_VM_CFG, &ctx->caps->features)))
 		mode_sel = CTL_DEFAULT_GROUP_ID  << 28;
 
-	if (cfg->dsc)
-		DPU_REG_WRITE(&ctx->hw, CTL_DSC_FLUSH, cfg->dsc);
-
 	if (cfg->intf_mode_sel == DPU_CTL_MODE_SEL_CMD)
 		mode_sel |= BIT(17);
 
@@ -524,10 +533,8 @@ static void dpu_hw_ctl_intf_cfg_v1(struct dpu_hw_ctl *ctx,
 	if (cfg->merge_3d)
 		DPU_REG_WRITE(c, CTL_MERGE_3D_ACTIVE,
 			      BIT(cfg->merge_3d - MERGE_3D_0));
-	if (cfg->dsc) {
-		DPU_REG_WRITE(&ctx->hw, CTL_FLUSH, DSC_IDX);
+	if (cfg->dsc)
 		DPU_REG_WRITE(c, CTL_DSC_ACTIVE, cfg->dsc);
-	}
 }
 
 static void dpu_hw_ctl_intf_cfg(struct dpu_hw_ctl *ctx,
@@ -630,6 +637,9 @@ static void _setup_ctl_ops(struct dpu_hw_ctl_ops *ops,
 		ops->update_pending_flush_merge_3d =
 			dpu_hw_ctl_update_pending_flush_merge_3d_v1;
 		ops->update_pending_flush_wb = dpu_hw_ctl_update_pending_flush_wb_v1;
+
+		ops->update_pending_flush_dsc =
+			dpu_hw_ctl_update_pending_flush_dsc_v1;
 	} else {
 		ops->trigger_flush = dpu_hw_ctl_trigger_flush;
 		ops->setup_intf_cfg = dpu_hw_ctl_intf_cfg;
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h
index 6292002..5762752 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h
@@ -158,6 +158,15 @@ struct dpu_hw_ctl_ops {
 		enum dpu_dspp blk, u32 dspp_sub_blk);
 
 	/**
+	 * OR in the given flushbits to the cached pending_(dsc_)flush_mask
+	 * No effect on hardware
+	 * @ctx       : ctl path ctx pointer
+	 * @blk       : interface block index
+	 */
+	void (*update_pending_flush_dsc)(struct dpu_hw_ctl *ctx,
+		enum dpu_dsc blk);
+
+	/**
 	 * Write the value of the pending_flush_mask to hardware
 	 * @ctx       : ctl path ctx pointer
 	 */
@@ -245,6 +254,7 @@ struct dpu_hw_ctl {
 	u32 pending_wb_flush_mask;
 	u32 pending_merge_3d_flush_mask;
 	u32 pending_dspp_flush_mask[DSPP_MAX - DSPP_0];
+	u32 pending_dsc_flush_mask;
 
 	/* ops */
 	struct dpu_hw_ctl_ops ops;
-- 
2.7.4

[PATCH v7 7/8] drm/msm/dpu: add DSC 1.2 hw blocks for relevant chipsets

[Kuogee Hsieh]

From: Abhinav Kumar <quic_abhinavk@quicinc.com>

Add DSC 1.2 hardware blocks to the catalog with necessary sub-block and
feature flag information.  Each display compression engine (DCE) contains
dual hard slice DSC encoders so both share same base address but with
its own different sub block address.

changes in v4:
-- delete DPU_DSC_HW_REV_1_1
-- re arrange sc8280xp_dsc[]

Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Signed-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 .../gpu/drm/msm/disp/dpu1/catalog/dpu_7_0_sm8350.h | 14 ++++++++++++
 .../gpu/drm/msm/disp/dpu1/catalog/dpu_7_2_sc7280.h |  7 ++++++
 .../drm/msm/disp/dpu1/catalog/dpu_8_0_sc8280xp.h   | 16 ++++++++++++++
 .../gpu/drm/msm/disp/dpu1/catalog/dpu_8_1_sm8450.h | 14 ++++++++++++
 .../gpu/drm/msm/disp/dpu1/catalog/dpu_9_0_sm8550.h | 14 ++++++++++++
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c     | 25 +++++++++++++++++++++-
 6 files changed, 89 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_7_0_sm8350.h b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_7_0_sm8350.h
index 500cfd0..c4c93c8 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_7_0_sm8350.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_7_0_sm8350.h
@@ -153,6 +153,18 @@ static const struct dpu_merge_3d_cfg sm8350_merge_3d[] = {
 	MERGE_3D_BLK("merge_3d_2", MERGE_3D_2, 0x50000),
 };
 
+/*
+ * NOTE: Each display compression engine (DCE) contains dual hard
+ * slice DSC encoders so both share same base address but with
+ * its own different sub block address.
+ */
+static const struct dpu_dsc_cfg sm8350_dsc[] = {
+	DSC_BLK_1_2("dce_0", DSC_0, 0x80000, 0x100, 0, dsc_sblk_0),
+	DSC_BLK_1_2("dce_0", DSC_1, 0x80000, 0x100, 0, dsc_sblk_1),
+	DSC_BLK_1_2("dce_1", DSC_2, 0x81000, 0x100, BIT(DPU_DSC_NATIVE_422_EN), dsc_sblk_0),
+	DSC_BLK_1_2("dce_1", DSC_3, 0x81000, 0x100, BIT(DPU_DSC_NATIVE_422_EN), dsc_sblk_1),
+};
+
 static const struct dpu_intf_cfg sm8350_intf[] = {
 	INTF_BLK("intf_0", INTF_0, 0x34000, 0x280, INTF_DP, MSM_DP_CONTROLLER_0, 24, INTF_SC7280_MASK,
 			DPU_IRQ_IDX(MDP_SSPP_TOP0_INTR, 24),
@@ -215,6 +227,8 @@ const struct dpu_mdss_cfg dpu_sm8350_cfg = {
 	.dspp = sm8350_dspp,
 	.pingpong_count = ARRAY_SIZE(sm8350_pp),
 	.pingpong = sm8350_pp,
+	.dsc = sm8350_dsc,
+	.dsc_count = ARRAY_SIZE(sm8350_dsc),
 	.merge_3d_count = ARRAY_SIZE(sm8350_merge_3d),
 	.merge_3d = sm8350_merge_3d,
 	.intf_count = ARRAY_SIZE(sm8350_intf),
diff --git a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_7_2_sc7280.h b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_7_2_sc7280.h
index 5646713..42c66fe 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_7_2_sc7280.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_7_2_sc7280.h
@@ -93,6 +93,11 @@ static const struct dpu_pingpong_cfg sc7280_pp[] = {
 	PP_BLK_DITHER("pingpong_3", PINGPONG_3, 0x6c000, 0, sc7280_pp_sblk, -1, -1),
 };
 
+/* NOTE: sc7280 only has one dsc hard slice encoder */
+static const struct dpu_dsc_cfg sc7280_dsc[] = {
+	DSC_BLK_1_2("dce_0", DSC_0, 0x80000, 0x100, BIT(DPU_DSC_NATIVE_422_EN), dsc_sblk_0),
+};
+
 static const struct dpu_intf_cfg sc7280_intf[] = {
 	INTF_BLK("intf_0", INTF_0, 0x34000, 0x280, INTF_DP, MSM_DP_CONTROLLER_0, 24, INTF_SC7280_MASK,
 			DPU_IRQ_IDX(MDP_SSPP_TOP0_INTR, 24),
@@ -149,6 +154,8 @@ const struct dpu_mdss_cfg dpu_sc7280_cfg = {
 	.mixer = sc7280_lm,
 	.pingpong_count = ARRAY_SIZE(sc7280_pp),
 	.pingpong = sc7280_pp,
+	.dsc_count = ARRAY_SIZE(sc7280_dsc),
+	.dsc = sc7280_dsc,
 	.intf_count = ARRAY_SIZE(sc7280_intf),
 	.intf = sc7280_intf,
 	.vbif_count = ARRAY_SIZE(sdm845_vbif),
diff --git a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_8_0_sc8280xp.h b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_8_0_sc8280xp.h
index 808aacd..508479f 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_8_0_sc8280xp.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_8_0_sc8280xp.h
@@ -141,6 +141,20 @@ static const struct dpu_merge_3d_cfg sc8280xp_merge_3d[] = {
 	MERGE_3D_BLK("merge_3d_2", MERGE_3D_2, 0x50000),
 };
 
+/*
+ * NOTE: Each display compression engine (DCE) contains dual hard
+ * slice DSC encoders so both share same base address but with
+ * its own different sub block address.
+ */
+static const struct dpu_dsc_cfg sc8280xp_dsc[] = {
+	DSC_BLK_1_2("dce_0", DSC_0, 0x80000, 0x100, 0, dsc_sblk_0), 
+	DSC_BLK_1_2("dce_0", DSC_1, 0x80000, 0x100, 0, dsc_sblk_1), 
+	DSC_BLK_1_2("dce_1", DSC_2, 0x81000, 0x100, BIT(DPU_DSC_NATIVE_422_EN), dsc_sblk_0), 
+	DSC_BLK_1_2("dce_1", DSC_3, 0x81000, 0x100, BIT(DPU_DSC_NATIVE_422_EN), dsc_sblk_1), 
+	DSC_BLK_1_2("dce_2", DSC_4, 0x82000, 0x100, 0, dsc_sblk_0), 
+	DSC_BLK_1_2("dce_2", DSC_5, 0x82000, 0x100, 0, dsc_sblk_1), 
+};
+
 /* TODO: INTF 3, 8 and 7 are used for MST, marked as INTF_NONE for now */
 static const struct dpu_intf_cfg sc8280xp_intf[] = {
 	INTF_BLK("intf_0", INTF_0, 0x34000, 0x280, INTF_DP, MSM_DP_CONTROLLER_0, 24, INTF_SC7280_MASK,
@@ -216,6 +230,8 @@ const struct dpu_mdss_cfg dpu_sc8280xp_cfg = {
 	.dspp = sc8280xp_dspp,
 	.pingpong_count = ARRAY_SIZE(sc8280xp_pp),
 	.pingpong = sc8280xp_pp,
+	.dsc = sc8280xp_dsc,
+	.dsc_count = ARRAY_SIZE(sc8280xp_dsc),
 	.merge_3d_count = ARRAY_SIZE(sc8280xp_merge_3d),
 	.merge_3d = sc8280xp_merge_3d,
 	.intf_count = ARRAY_SIZE(sc8280xp_intf),
diff --git a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_8_1_sm8450.h b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_8_1_sm8450.h
index 1a89ff9..741d03f 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_8_1_sm8450.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_8_1_sm8450.h
@@ -161,6 +161,18 @@ static const struct dpu_merge_3d_cfg sm8450_merge_3d[] = {
 	MERGE_3D_BLK("merge_3d_3", MERGE_3D_3, 0x65f00),
 };
 
+/*
+ * NOTE: Each display compression engine (DCE) contains dual hard
+ * slice DSC encoders so both share same base address but with
+ * its own different sub block address.
+ */
+static const struct dpu_dsc_cfg sm8450_dsc[] = {
+	DSC_BLK_1_2("dce_0", DSC_0, 0x80000, 0x100, 0, dsc_sblk_0),
+	DSC_BLK_1_2("dce_0", DSC_1, 0x80000, 0x100, 0, dsc_sblk_1),
+	DSC_BLK_1_2("dce_1", DSC_2, 0x81000, 0x100, BIT(DPU_DSC_NATIVE_422_EN), dsc_sblk_0),
+	DSC_BLK_1_2("dce_1", DSC_3, 0x81000, 0x100, BIT(DPU_DSC_NATIVE_422_EN), dsc_sblk_1),
+};
+
 static const struct dpu_intf_cfg sm8450_intf[] = {
 	INTF_BLK("intf_0", INTF_0, 0x34000, 0x280, INTF_DP, MSM_DP_CONTROLLER_0, 24, INTF_SC7280_MASK,
 			DPU_IRQ_IDX(MDP_SSPP_TOP0_INTR, 24),
@@ -223,6 +235,8 @@ const struct dpu_mdss_cfg dpu_sm8450_cfg = {
 	.dspp = sm8450_dspp,
 	.pingpong_count = ARRAY_SIZE(sm8450_pp),
 	.pingpong = sm8450_pp,
+	.dsc = sm8450_dsc,
+	.dsc_count = ARRAY_SIZE(sm8450_dsc),
 	.merge_3d_count = ARRAY_SIZE(sm8450_merge_3d),
 	.merge_3d = sm8450_merge_3d,
 	.intf_count = ARRAY_SIZE(sm8450_intf),
diff --git a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_9_0_sm8550.h b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_9_0_sm8550.h
index 497b34c..3ee6dc8 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_9_0_sm8550.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_9_0_sm8550.h
@@ -165,6 +165,18 @@ static const struct dpu_merge_3d_cfg sm8550_merge_3d[] = {
 	MERGE_3D_BLK("merge_3d_3", MERGE_3D_3, 0x66700),
 };
 
+/*
+ * NOTE: Each display compression engine (DCE) contains dual hard
+ * slice DSC encoders so both share same base address but with
+ * its own different sub block address.
+ */
+static const struct dpu_dsc_cfg sm8550_dsc[] = {
+	DSC_BLK_1_2("dce_0", DSC_0, 0x80000, 0x100, 0, dsc_sblk_0),
+	DSC_BLK_1_2("dce_0", DSC_1, 0x80000, 0x100, 0, dsc_sblk_1),
+	DSC_BLK_1_2("dce_1", DSC_2, 0x81000, 0x100, BIT(DPU_DSC_NATIVE_422_EN), dsc_sblk_0),
+	DSC_BLK_1_2("dce_1", DSC_3, 0x81000, 0x100, BIT(DPU_DSC_NATIVE_422_EN), dsc_sblk_1),
+};
+
 static const struct dpu_intf_cfg sm8550_intf[] = {
 	INTF_BLK("intf_0", INTF_0, 0x34000, 0x280, INTF_DP, MSM_DP_CONTROLLER_0, 24, INTF_SC7280_MASK,
 			DPU_IRQ_IDX(MDP_SSPP_TOP0_INTR, 24),
@@ -227,6 +239,8 @@ const struct dpu_mdss_cfg dpu_sm8550_cfg = {
 	.dspp = sm8550_dspp,
 	.pingpong_count = ARRAY_SIZE(sm8550_pp),
 	.pingpong = sm8550_pp,
+	.dsc = sm8550_dsc,
+	.dsc_count = ARRAY_SIZE(sm8550_dsc),
 	.merge_3d_count = ARRAY_SIZE(sm8550_merge_3d),
 	.merge_3d = sm8550_merge_3d,
 	.intf_count = ARRAY_SIZE(sm8550_intf),
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
index 78e4bf6..c1d7338 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved.
- * Copyright (c) 2022. Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2022-2023, Qualcomm Innovation Center, Inc. All rights reserved.
  */
 
 #define pr_fmt(fmt)	"[drm:%s:%d] " fmt, __func__, __LINE__
@@ -522,6 +522,16 @@ static const struct dpu_pingpong_sub_blks sc7280_pp_sblk = {
 /*************************************************************
  * DSC sub blocks config
  *************************************************************/
+static const struct dpu_dsc_sub_blks dsc_sblk_0 = {
+	.enc = {.base = 0x100, .len = 0x100},
+	.ctl = {.base = 0xF00, .len = 0x10},
+};
+
+static const struct dpu_dsc_sub_blks dsc_sblk_1 = {
+	.enc = {.base = 0x200, .len = 0x100},
+	.ctl = {.base = 0xF80, .len = 0x10},
+};
+
 #define DSC_BLK(_name, _id, _base, _features) \
 	{\
 	.name = _name, .id = _id, \
@@ -529,6 +539,19 @@ static const struct dpu_pingpong_sub_blks sc7280_pp_sblk = {
 	.features = _features, \
 	}
 
+/*
+ * NOTE: Each display compression engine (DCE) contains dual hard
+ * slice DSC encoders so both share same base address but with
+ * its own different sub block address.
+ */
+#define DSC_BLK_1_2(_name, _id, _base, _len, _features, _sblk) \
+	{\
+	.name = _name, .id = _id, \
+	.base = _base, .len = _len, \
+	.features = BIT(DPU_DSC_HW_REV_1_2) | _features, \
+	.sblk = &_sblk, \
+	}
+
 /*************************************************************
  * INTF sub blocks config
  *************************************************************/
-- 
2.7.4

[PATCH v7 8/8] drm/msm/dpu: tear down DSC data path when DSC disabled

[Kuogee Hsieh]

Unset DSC_ACTIVE bit at dpu_hw_ctl_reset_intf_cfg_v1(),
dpu_encoder_unprep_dsc() and dpu_encoder_dsc_pipe_clr() functions
to tear down DSC data path if DSC data path was setup previous.

Signed-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 44 +++++++++++++++++++++++++++++
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c  |  7 +++++
 2 files changed, 51 insertions(+)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
index 94b805b..6500589 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@ -1214,6 +1214,45 @@ static void dpu_encoder_virt_atomic_enable(struct drm_encoder *drm_enc,
 	mutex_unlock(&dpu_enc->enc_lock);
 }
 
+static void dpu_encoder_dsc_pipe_clr(struct dpu_encoder_virt *dpu_enc,
+                                     struct dpu_hw_dsc *hw_dsc,
+                                     struct dpu_hw_pingpong *hw_pp)
+{
+	struct dpu_encoder_phys *cur_master = dpu_enc->cur_master;
+	struct dpu_hw_ctl *ctl;
+
+	ctl = cur_master->hw_ctl;
+
+	if (hw_dsc->ops.dsc_disable)
+		hw_dsc->ops.dsc_disable(hw_dsc);
+
+	if (hw_pp->ops.disable_dsc)
+		hw_pp->ops.disable_dsc(hw_pp);
+
+	if (hw_dsc->ops.dsc_bind_pingpong_blk)
+		hw_dsc->ops.dsc_bind_pingpong_blk(hw_dsc, PINGPONG_NONE);
+
+	if (ctl->ops.update_pending_flush_dsc)
+		ctl->ops.update_pending_flush_dsc(ctl, hw_dsc->idx);
+}
+
+static void dpu_encoder_unprep_dsc(struct dpu_encoder_virt *dpu_enc)
+{
+	/* coding only for 2LM, 2enc, 1 dsc config */
+	struct dpu_hw_dsc *hw_dsc[MAX_CHANNELS_PER_ENC];
+	struct dpu_hw_pingpong *hw_pp[MAX_CHANNELS_PER_ENC];
+	int i;
+
+	for (i = 0; i < MAX_CHANNELS_PER_ENC; i++) {
+		hw_pp[i] = dpu_enc->hw_pp[i];
+		hw_dsc[i] = dpu_enc->hw_dsc[i];
+
+		if (hw_pp[i] && hw_dsc[i])
+			dpu_encoder_dsc_pipe_clr(dpu_enc, hw_dsc[i], hw_pp[i]);
+	}
+
+}
+
 static void dpu_encoder_virt_atomic_disable(struct drm_encoder *drm_enc,
 					struct drm_atomic_state *state)
 {
@@ -2090,6 +2129,9 @@ void dpu_encoder_helper_phys_cleanup(struct dpu_encoder_phys *phys_enc)
 					phys_enc->hw_pp->merge_3d->idx);
 	}
 
+	if (dpu_enc->dsc)
+		dpu_encoder_unprep_dsc(dpu_enc);
+
 	intf_cfg.stream_sel = 0; /* Don't care value for video mode */
 	intf_cfg.mode_3d = dpu_encoder_helper_get_3d_blend_mode(phys_enc);
 
@@ -2101,6 +2143,8 @@ void dpu_encoder_helper_phys_cleanup(struct dpu_encoder_phys *phys_enc)
 	if (phys_enc->hw_pp->merge_3d)
 		intf_cfg.merge_3d = phys_enc->hw_pp->merge_3d->idx;
 
+	intf_cfg.dsc = dpu_encoder_helper_get_dsc(phys_enc);
+
 	if (ctl->ops.reset_intf_cfg)
 		ctl->ops.reset_intf_cfg(ctl, &intf_cfg);
 
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
index 832a6a7..b34dac5 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
@@ -577,6 +577,7 @@ static void dpu_hw_ctl_reset_intf_cfg_v1(struct dpu_hw_ctl *ctx,
 	u32 intf_active = 0;
 	u32 wb_active = 0;
 	u32 merge3d_active = 0;
+	u32 dsc_active;
 
 	/*
 	 * This API resets each portion of the CTL path namely,
@@ -606,6 +607,12 @@ static void dpu_hw_ctl_reset_intf_cfg_v1(struct dpu_hw_ctl *ctx,
 		wb_active &= ~BIT(cfg->wb - WB_0);
 		DPU_REG_WRITE(c, CTL_WB_ACTIVE, wb_active);
 	}
+
+	if (cfg->dsc) {
+		dsc_active = DPU_REG_READ(c, CTL_DSC_ACTIVE);
+		dsc_active &= ~cfg->dsc;
+		DPU_REG_WRITE(c, CTL_DSC_ACTIVE, dsc_active);
+	}
 }
 
 static void dpu_hw_ctl_set_fetch_pipe_active(struct dpu_hw_ctl *ctx,
-- 
2.7.4

Re: [PATCH v7 0/8] add DSC 1.2 dpu supports

[Dmitry Baryshkov]

On 11/05/2023 20:53, Kuogee Hsieh wrote:
> This series adds the DPU side changes to support DSC 1.2 encoder. This
> was validated with both DSI DSC 1.2 panel and DP DSC 1.2 monitor.
> The DSI and DP parts will be pushed later on top of this change.
> This seriel is rebase on [1], [2] and catalog fixes from rev-4 of [3].
> 
> [1]: https://patchwork.freedesktop.org/series/116851/
> [2]: https://patchwork.freedesktop.org/series/116615/
> [3]: https://patchwork.freedesktop.org/series/112332/

Please run the series through ./scripts/checkpatch.pl --strict. For this 
series it reports tons of issues with the mixed indentation, 
whitespaces, alignment, etc.

-- 
With best wishes
Dmitry