Re: [PATCH v1 10/14] drm/msm/disp/dpu: add supports of DSC encoder v1.2 engine
From: Dmitry Baryshkov
Date: Tue Jan 24 2023 - 02:44:31 EST
On 23/01/2023 20:24, Kuogee Hsieh wrote:
DSC V1.2 encoder engine is newly added hardware module. This patch
add support functions to configure and enable DSC V1.2 encoder engine.
Signed-off-by: Kuogee Hsieh <quic_khsieh@xxxxxxxxxxx>
---
drivers/gpu/drm/msm/Makefile | 1 +
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 2 +-
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h | 60 +++-
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.c | 23 +-
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.h | 23 +-
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc_1_2.c | 371 +++++++++++++++++++++++++
6 files changed, 463 insertions(+), 17 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 28cf52b..271c29a15 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_dsc_helper.o \
disp/dpu1/dpu_hw_interrupts.o \
disp/dpu1/dpu_hw_intf.o \
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
index 7f4a439..901e317 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@ -1821,7 +1821,7 @@ static void dpu_encoder_dsc_pipe_cfg(struct dpu_hw_dsc *hw_dsc,
u32 initial_lines)
{
if (hw_dsc->ops.dsc_config)
- hw_dsc->ops.dsc_config(hw_dsc, dsc, common_mode, initial_lines);
+ hw_dsc->ops.dsc_config(hw_dsc, dsc, common_mode, initial_lines, false);
if (hw_dsc->ops.dsc_config_thresh)
hw_dsc->ops.dsc_config_thresh(hw_dsc, dsc);
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 978e3bd..7b0b092 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.
*/
@@ -11,6 +11,7 @@
#include <linux/bug.h>
#include <linux/bitmap.h>
#include <linux/err.h>
+#include "dpu_hw_mdss.h"
/**
* Max hardware block count: For ex: max 12 SSPP pipes or
@@ -182,6 +183,7 @@ 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_DSC, Display stream compression blocks
* @DPU_PINGPONG_DITHER, Dither blocks
* @DPU_PINGPONG_MAX
*/
@@ -190,10 +192,32 @@ enum {
DPU_PINGPONG_TE2,
DPU_PINGPONG_SPLIT,
DPU_PINGPONG_SLAVE,
+ DPU_PINGPONG_DSC,
DPU_PINGPONG_DITHER,
DPU_PINGPONG_MAX
};
+
+/** DSC sub-blocks/features
+ * @DPU_DSC_OUTPUT_CTRL Supports the control of the pp id which gets
+ * the pixel output from this DSC.
+ * @DPU_DSC_HW_REV_1_1 dsc block supports dsc 1.1 only
+ * @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_ENC, DSC encoder sub block
+ * @DPU_DSC_CTL, DSC ctl sub block
+ * @DPU_DSC_MAX
+ */
+enum {
+ DPU_DSC_OUTPUT_CTRL = 0x1,
+ DPU_DSC_HW_REV_1_1,
+ DPU_DSC_HW_REV_1_2,
+ DPU_DSC_NATIVE_422_EN,
+ DPU_DSC_ENC,
+ DPU_DSC_CTL,
+ DPU_DSC_MAX
+};
+
/**
* CTL sub-blocks
* @DPU_CTL_SPLIT_DISPLAY: CTL supports video mode split display
@@ -276,15 +300,6 @@ enum {
};
/**
- * DSC features
- * @DPU_DSC_OUTPUT_CTRL Configure which PINGPONG block gets
- * the pixel output from this DSC.
- */
-enum {
- DPU_DSC_OUTPUT_CTRL = 0x1,
-};
-
Any reason for this move?
-/**
* MACRO DPU_HW_BLK_INFO - information of HW blocks inside DPU
* @name: string name for debug purposes
* @id: enum identifying this block
@@ -346,6 +361,14 @@ 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 {
@@ -403,6 +426,7 @@ struct dpu_rotation_cfg {
* @pixel_ram_size size of latency hiding and de-tiling buffer in bytes
* @max_hdeci_exp max horizontal decimation supported (max is 2^value)
* @max_vdeci_exp max vertical decimation supported (max is 2^value)
+ * @max_dsc_width max dsc line width support.
*/
struct dpu_caps {
u32 max_mixer_width;
@@ -419,6 +443,7 @@ struct dpu_caps {
u32 pixel_ram_size;
u32 max_hdeci_exp;
u32 max_vdeci_exp;
+ u32 max_dsc_width;
};
/**
@@ -494,9 +519,20 @@ struct dpu_dspp_sub_blks {
struct dpu_pingpong_sub_blks {
struct dpu_pp_blk te;
struct dpu_pp_blk te2;
+ struct dpu_pp_blk dsc;
struct dpu_pp_blk dither;
};
+
+/**
+ * struct dpu_dsc_sub_blks : DSC sub-blks
+ *
+ */
+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
*/
@@ -641,10 +677,14 @@ 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
+ * @dsc_pair_mask: Bitmask of DSCs that can be controlled by same CTL
*/
struct dpu_dsc_cfg {
DPU_HW_BLK_INFO;
+ DECLARE_BITMAP(dsc_pair_mask, DSC_MAX);
Please change this from the bitmap to enum dpu_dsc instance
+ const struct dpu_dsc_sub_blks *sblk;
};
/**
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 619926d..51e8890 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.c
@@ -1,6 +1,7 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2020-2022, Linaro Limited
+ * Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved
*/
#include "dpu_kms.h"
@@ -41,10 +42,11 @@ static void dpu_hw_dsc_disable(struct dpu_hw_dsc *dsc)
static void dpu_hw_dsc_config(struct dpu_hw_dsc *hw_dsc,
struct drm_dsc_config *dsc,
u32 mode,
- u32 initial_lines)
+ u32 initial_lines,
+ bool ich_reset_override)
{
struct dpu_hw_blk_reg_map *c = &hw_dsc->hw;
- u32 data;
+ u32 data, lsb, bpp;
u32 slice_last_group_size;
u32 det_thresh_flatness;
bool is_cmd_mode = !(mode & DSC_MODE_VIDEO);
@@ -58,7 +60,14 @@ static void dpu_hw_dsc_config(struct dpu_hw_dsc *hw_dsc,
data = (initial_lines << 20);
data |= ((slice_last_group_size - 1) << 18);
/* bpp is 6.4 format, 4 LSBs bits are for fractional part */
- data |= (dsc->bits_per_pixel << 8);
+ data |= dsc->bits_per_pixel << 12;
+ lsb = dsc->bits_per_pixel % 4;
+ bpp = dsc->bits_per_pixel / 4;
+ bpp *= 4;
+ bpp <<= 4;
+ bpp |= lsb;
+
NAK. This was changed by the commit d3c1a8663d0d ("drm/msm/dpu1: Account
for DSC's bits_per_pixel having 4 fractional bits"). It removed the code
that you are trying to bring back.
+ data |= bpp << 8;
data |= (dsc->block_pred_enable << 7);
data |= (dsc->line_buf_depth << 3);
data |= (dsc->simple_422 << 2);
@@ -221,7 +230,13 @@ struct dpu_hw_dsc *dpu_hw_dsc_init(enum dpu_dsc idx, void __iomem *addr,
c->idx = idx;
c->caps = cfg;
- _setup_dsc_ops(&c->ops, c->caps->features);
+
+ if (test_bit(DPU_DSC_HW_REV_1_1, &c->caps->features))
+ _setup_dsc_ops(&c->ops, c->caps->features);
+ else if (test_bit(DPU_DSC_HW_REV_1_2, &c->caps->features))
+ dpu_dsc_1_2_setup_ops(&c->ops, c->caps->features);
+ else
+ _setup_dsc_ops(&c->ops, c->caps->features);
Can we handle this in a more sensible way, please. E.g. let RM check the
flags and then call either dpu_hw_dsc_1_1_init() or dpu_hw_dsc_1_2_init()?
Granted that to generations of DSC blocks are _that_ different it might
even make sense to handle them separately in the HW catalog too, but I
wouldn't insist on that.
return c;
}
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 ae9b5db..a48f572 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
@@ -33,7 +36,8 @@ struct dpu_hw_dsc_ops {
void (*dsc_config)(struct dpu_hw_dsc *hw_dsc,
struct drm_dsc_config *dsc,
u32 mode,
- u32 initial_lines);
+ u32 initial_lines,
+ bool ich_reset_override);
Documentation?
/**
* dsc_config_thresh - programs panel thresholds
@@ -43,6 +47,12 @@ struct dpu_hw_dsc_ops {
void (*dsc_config_thresh)(struct dpu_hw_dsc *hw_dsc,
struct drm_dsc_config *dsc);
+ /**
+ * bind_pingpong_blk - enable/disable the connection with pp
+ * @hw_dsc: Pointer to dsc context
+ * @enable: enable/disable connection
+ * @pp: pingpong blk id
+ */
void (*dsc_bind_pingpong_blk)(struct dpu_hw_dsc *hw_dsc,
bool enable,
enum dpu_pingpong pp);
@@ -51,6 +61,7 @@ struct dpu_hw_dsc_ops {
struct dpu_hw_dsc {
struct dpu_hw_blk base;
struct dpu_hw_blk_reg_map hw;
+ struct dpu_hw_ctl *hw_ctl;
Why? This is not used by the rest of the patch.
/* dsc */
enum dpu_dsc idx;
@@ -76,9 +87,17 @@ struct dpu_hw_dsc *dpu_hw_dsc_init(enum dpu_dsc idx, void __iomem *addr,
*/
void dpu_hw_dsc_destroy(struct dpu_hw_dsc *dsc);
+/**
+ * dpu_hw_dsc - convert base object dpu_hw_base to container
+ * @hw: Pointer to base hardware block
+ * return: Pointer to hardware block container
+ */
You are adding docs for the obvious items (which is unnecessary and just
clobbers the code), but leaving out important items (for which docs
might be necessary).
static inline struct dpu_hw_dsc *to_dpu_hw_dsc(struct dpu_hw_blk *hw)
{
return container_of(hw, struct dpu_hw_dsc, base);
}
+void dpu_dsc_1_2_setup_ops(struct dpu_hw_dsc_ops *ops,
+ const unsigned long features);
+
#endif /* _DPU_HW_DSC_H */
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..2be74ae
--- /dev/null
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc_1_2.c
@@ -0,0 +1,371 @@
+// 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 "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 int _dsc_calc_ob_max_addr(struct dpu_hw_dsc *hw_dsc, int num_ss)
+{
+ enum dpu_dsc idx;
+
+ idx = hw_dsc->idx;
+
+ if (!(hw_dsc->caps->features & BIT(DPU_DSC_NATIVE_422_EN))) {
+ if (num_ss == 1)
+ return 2399;
+ else if (num_ss == 2)
+ return 1199;
+ } else {
+ if (num_ss == 1)
+ return 1199;
+ else if (num_ss == 2)
+ return 599;
+ }
+ return 0;
int max_addr = 2400 / num_ss;
if (hw_dsc->caps->features & BIT(DPU_DSC_NATIVE_422_EN))
max_addr /= 2;
return max_addr -1;
Isn't this nicer?
+}
+
+static inline int _dsc_subblk_offset(struct dpu_hw_dsc *hw_dsc, int s_id,
+ u32 *idx)
+{
+ const struct dpu_dsc_sub_blks *sblk;
+
+ if (!hw_dsc)
+ return -EINVAL;
+
+ *idx = 0;
+
+ sblk = hw_dsc->caps->sblk;
+
+ switch (s_id) {
+
+ case DPU_DSC_ENC:
+ *idx = sblk->enc.base;
+ break;
+ case DPU_DSC_CTL:
+ *idx = sblk->ctl.base;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static void dpu_hw_dsc_disable_1_2(struct dpu_hw_dsc *hw_dsc)
+{
+ struct dpu_hw_blk_reg_map *hw;
+ u32 idx;
+
+ if (!hw_dsc)
+ return;
+
+ if (_dsc_subblk_offset(hw_dsc, DPU_DSC_CTL, &idx))
+ return;
+
+ hw = &hw_dsc->hw;
+ DPU_REG_WRITE(hw, DSC_CFG + idx, 0);
+
+ if (_dsc_subblk_offset(hw_dsc, DPU_DSC_ENC, &idx))
+ return;
+
+ DPU_REG_WRITE(hw, ENC_DF_CTRL + idx, 0);
+ DPU_REG_WRITE(hw, DSC_MAIN_CONF + idx, 0);
+}
+
+static void dpu_hw_dsc_config_1_2(struct dpu_hw_dsc *hw_dsc,
+ struct drm_dsc_config *dsc, u32 mode,
+ u32 initial_lines, bool ich_reset_override)
+{
+ struct dpu_hw_blk_reg_map *hw;
+ struct msm_display_dsc_info *dsc_info;
+ u32 idx;
+ u32 data = 0;
+ u32 bpp;
+ void __iomem *off;
+
+ if (!hw_dsc || !dsc)
+ return;
+
+ hw = &hw_dsc->hw;
+
+ dsc_info = to_msm_dsc_info(dsc);
+
+ if (_dsc_subblk_offset(hw_dsc, DPU_DSC_ENC, &idx))
+ return;
+
+ if (mode & DSC_MODE_SPLIT_PANEL)
+ data |= BIT(0);
+
+ if (mode & DSC_MODE_MULTIPLEX)
+ data |= BIT(1);
+
+ data |= (dsc_info->num_active_ss_per_enc & 0x3) << 7;
+
+ DPU_REG_WRITE(hw, DSC_CMN_MAIN_CNF, data);
+
+ data = (dsc_info->initial_lines & 0xff);
+ data |= ((mode & DSC_MODE_VIDEO) ? 1 : 0) << 9;
+ if (ich_reset_override)
+ data |= 0xC00; // set bit 10 and 11
Comment style is wrong. The comment is useless: from 0xc00 we see which
bits are being set. We'd better know why. Please add corresponding
defines to the bits and bitfields in these function.
+ data |= (_dsc_calc_ob_max_addr(hw_dsc, dsc_info->num_active_ss_per_enc) << 18);
+
+ DPU_REG_WRITE(hw, ENC_DF_CTRL + idx, 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, DSC_MAIN_CONF + idx, data);
+
+ data = (dsc->pic_width & 0xffff) |
+ ((dsc->pic_height & 0xffff) << 16);
+
+ DPU_REG_WRITE(hw, DSC_PICTURE_SIZE + idx, data);
+
+ data = (dsc->slice_width & 0xffff) |
+ ((dsc->slice_height & 0xffff) << 16);
+
+ DPU_REG_WRITE(hw, DSC_SLICE_SIZE + idx, data);
+
+ DPU_REG_WRITE(hw, DSC_MISC_SIZE + idx,
+ (dsc->slice_chunk_size) & 0xffff);
+
+ data = (dsc->initial_xmit_delay & 0xffff) |
+ ((dsc->initial_dec_delay & 0xffff) << 16);
+
+ DPU_REG_WRITE(hw, DSC_HRD_DELAYS + idx, data);
+
+ DPU_REG_WRITE(hw, DSC_RC_SCALE + idx,
+ dsc->initial_scale_value & 0x3f);
+
+ data = (dsc->scale_increment_interval & 0xffff) |
+ ((dsc->scale_decrement_interval & 0x7ff) << 16);
+
+ DPU_REG_WRITE(hw, DSC_RC_SCALE_INC_DEC + idx, data);
+
+ data = (dsc->first_line_bpg_offset & 0x1f) |
+ ((dsc->second_line_bpg_offset & 0x1f) << 5);
+
+ DPU_REG_WRITE(hw, DSC_RC_OFFSETS_1 + idx, data);
+
+ data = (dsc->nfl_bpg_offset & 0xffff) |
+ ((dsc->slice_bpg_offset & 0xffff) << 16);
+
+ DPU_REG_WRITE(hw, DSC_RC_OFFSETS_2 + idx, data);
+
+ data = (dsc->initial_offset & 0xffff) |
+ ((dsc->final_offset & 0xffff) << 16);
+
+ DPU_REG_WRITE(hw, DSC_RC_OFFSETS_3 + idx, data);
+
+ data = (dsc->nsl_bpg_offset & 0xffff) |
+ ((dsc->second_line_offset_adj & 0xffff) << 16);
+
+ DPU_REG_WRITE(hw, DSC_RC_OFFSETS_4 + idx, data);
+
+ data = (dsc->flatness_min_qp & 0x1f);
+ data |= (dsc->flatness_max_qp & 0x1f) << 5;
+ data |= (dsc_info->det_thresh_flatness & 0xff) << 10;
+
+ DPU_REG_WRITE(hw, DSC_FLATNESS_QP + idx, data);
+
+ DPU_REG_WRITE(hw, DSC_RC_MODEL_SIZE + idx,
+ (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, DSC_RC_CONFIG + idx, data);
+
+ /* program the dsc wrapper */
+ if (_dsc_subblk_offset(hw_dsc, DPU_DSC_CTL, &idx))
+ return;
+
+ off = hw->blk_addr + idx;
+
+ 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);
+
+ if (dsc_info->dsc_4hsmerge_en) {
+ data |= dsc_info->dsc_4hsmerge_padding << 18;
+ data |= dsc_info->dsc_4hsmerge_alignment << 22;
+ data |= BIT(16);
+ }
+
+ DPU_REG_WRITE(hw, DSC_CFG + idx, data);
+
+// DPU_REG_WRITE(hw, DSC_DATA_IN_SWAP + idx, 0x14e5);
Is this necessary or not? If not, please drop it.
+}
+
+static 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;
+ struct msm_display_dsc_info *dsc_info;
+ u32 idx, off;
+ int i, j = 0;
+ struct drm_dsc_rc_range_parameters *rc;
+ u32 data = 0, min_qp = 0, max_qp = 0, bpg_off = 0;
+
+ if (!hw_dsc || !dsc)
+ return;
+
+ if (_dsc_subblk_offset(hw_dsc, DPU_DSC_ENC, &idx))
+ return;
+
+ hw = &hw_dsc->hw;
+
+ dsc_info = to_msm_dsc_info(dsc);
+
+ rc = dsc->rc_range_params;
+
+ off = 0;
+ for (i = 0; i < DSC_NUM_BUF_RANGES - 1; i++) {
+ data |= dsc->rc_buf_thresh[i] << (8*j);
+ j++;
+ if ((j == 4) || (i == DSC_NUM_BUF_RANGES - 2)) {
+ DPU_REG_WRITE(hw, DSC_RC_BUF_THRESH_0 + idx + off,
+ data);
+ off += 4;
+ j = 0;
+ data = 0;
+ }
+ }
+
+ off = 0;
+ for (i = 0; i < DSC_NUM_BUF_RANGES; i++) {
+ min_qp |= (rc[i].range_min_qp & 0x1f) << 5*j;
+ max_qp |= (rc[i].range_max_qp & 0x1f) << 5*j;
+ bpg_off |= (rc[i].range_bpg_offset & 0x3f) << 6*j;
+ j++;
+ if (j == 5) {
+ DPU_REG_WRITE(hw, DSC_RC_MIN_QP_0 + idx + off,
+ min_qp);
+ DPU_REG_WRITE(hw, DSC_RC_MAX_QP_0 + idx + off,
+ max_qp);
+ DPU_REG_WRITE(hw,
+ DSC_RC_RANGE_BPG_OFFSETS_0 + idx + off,
+ bpg_off);
+ off += 4;
+ j = 0;
+ min_qp = 0;
+ max_qp = 0;
+ bpg_off = 0;
+ }
+ }
+}
+
+static void dpu_hw_dsc_bind_pingpong_blk_1_2(
+ struct dpu_hw_dsc *hw_dsc,
+ bool enable,
+ const enum dpu_pingpong pp)
+{
+ struct dpu_hw_blk_reg_map *hw;
+ int idx;
+ int mux_cfg = 0xF; /* Disabled */
+
+ if (!hw_dsc)
+ return;
+
+ if (_dsc_subblk_offset(hw_dsc, DPU_DSC_CTL, &idx))
+ return;
+
+ hw = &hw_dsc->hw;
+ if (enable)
+ mux_cfg = (pp - PINGPONG_0) & 0x7;
+
+ DPU_REG_WRITE(hw, DSC_CTL + idx, mux_cfg);
+}
+
+void dpu_dsc_1_2_setup_ops(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;
+}
--
With best wishes
Dmitry