Re: [PATCH v1 09/14] drm/msm/dsi: export struct msm_compression_info to dpu encoder

From: Dmitry Baryshkov
Date: Mon Jan 23 2023 - 17:07:24 EST

Next message: Kirill A. Shutemov: "[PATCHv15 17/17] selftests/x86/lam: Add test cases for LAM vs thread creation"
Previous message: Kirill A. Shutemov: "[PATCHv15 13/17] selftests/x86/lam: Add mmap and SYSCALL test cases for linear-address masking"
In reply to: Kuogee Hsieh: "[PATCH v1 09/14] drm/msm/dsi: export struct msm_compression_info to dpu encoder"
Next in thread: Kuogee Hsieh: "[PATCH v1 11/14] drm/msm/disp/dpu1: add supports of new flush mechanism"
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On 23/01/2023 20:24, Kuogee Hsieh wrote:

struct msm_compression_info is used to support several different
compression mechanisms. It also contains customized info required
to configure DSC encoder engine. This patch also make changes DSI
module to have DSI exports struct msm_compreion_info to dpu encoder
instead of struct drm_dsc_config.

Let's see how patch 07 evolves first. But generally I don't like the idea of passing around another wrapper structure.

Signed-off-by: Kuogee Hsieh <quic_khsieh@xxxxxxxxxxx>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 7 +++++--
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h | 4 ++--
drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 10 ++++++++--
drivers/gpu/drm/msm/dsi/dsi.c | 3 ++-
drivers/gpu/drm/msm/dsi/dsi.h | 3 ++-
drivers/gpu/drm/msm/dsi/dsi_host.c | 14 ++++++++++++--
drivers/gpu/drm/msm/msm_drv.h | 4 ++--
7 files changed, 33 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
index 758261e..7f4a439 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@ -2,7 +2,7 @@
/*
* Copyright (C) 2013 Red Hat
* Copyright (c) 2014-2018, 2020-2021 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.
*
* Author: Rob Clark <robdclark@xxxxxxxxx>
*/
@@ -210,6 +210,7 @@ struct dpu_encoder_virt {
/* DSC configuration */
struct drm_dsc_config *dsc;
+ struct msm_compression_info *comp_info;
};
#define to_dpu_encoder_virt(x) container_of(x, struct dpu_encoder_virt, base)
@@ -2275,7 +2276,9 @@ static int dpu_encoder_setup_display(struct dpu_encoder_virt *dpu_enc,
dpu_enc->idle_pc_supported =
dpu_kms->catalog->caps->has_idle_pc;
- dpu_enc->dsc = disp_info->dsc;
+ dpu_enc->comp_info = disp_info->comp_info;
+ if (dpu_enc->comp_info)
+ dpu_enc->dsc = &dpu_enc->comp_info->msm_dsc_info.drm_dsc;
mutex_lock(&dpu_enc->enc_lock);
for (i = 0; i < disp_info->num_of_h_tiles && !ret; i++) {
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h
index 9e7236e..bd2da5e 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.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, The Linux Foundation. All rights reserved.
* Copyright (C) 2013 Red Hat
* Author: Rob Clark <robdclark@xxxxxxxxx>
@@ -36,7 +36,7 @@ struct msm_display_info {
uint32_t h_tile_instance[MAX_H_TILES_PER_DISPLAY];
bool is_cmd_mode;
bool is_te_using_watchdog_timer;
- struct drm_dsc_config *dsc;
+ struct msm_compression_info *comp_info;
};
/**
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index d612419..70a74ed 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@ -2,7 +2,7 @@
/*
* Copyright (C) 2013 Red Hat
* Copyright (c) 2014-2018, 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.
*
* Author: Rob Clark <robdclark@xxxxxxxxx>
*/
@@ -570,7 +570,7 @@ static int _dpu_kms_initialize_dsi(struct drm_device *dev,
info.h_tile_instance[info.num_of_h_tiles++] = i;
info.is_cmd_mode = msm_dsi_is_cmd_mode(priv->dsi[i]);
- info.dsc = msm_dsi_get_dsc_config(priv->dsi[i]);
+ info.comp_info = msm_dsi_get_dsc_config(priv->dsi[i]);
if (msm_dsi_is_bonded_dsi(priv->dsi[i]) && priv->dsi[other]) {
rc = msm_dsi_modeset_init(priv->dsi[other], dev, encoder);
@@ -622,6 +622,8 @@ static int _dpu_kms_initialize_displayport(struct drm_device *dev,
info.num_of_h_tiles = 1;
info.h_tile_instance[0] = i;
info.intf_type = encoder->encoder_type;
+ info.is_cmd_mode = 0; /* dp always video mode */
+ info.comp_info = NULL;
rc = dpu_encoder_setup(dev, encoder, &info);
if (rc) {
DPU_ERROR("failed to setup DPU encoder %d: rc:%d\n",
@@ -892,6 +894,10 @@ static void dpu_kms_mdp_snapshot(struct msm_disp_state *disp_state, struct msm_k
pm_runtime_get_sync(&dpu_kms->pdev->dev);
+ for (i = 0; i < cat->dsc_count; i++)
+ msm_disp_snapshot_add_block(disp_state, cat->dsc[i].len,
+ dpu_kms->mmio + cat->dsc[i].base, "dsc_%d", i);
+

unrelated, isn't it?

/* dump CTL sub-blocks HW regs info */
for (i = 0; i < cat->ctl_count; i++)
msm_disp_snapshot_add_block(disp_state, cat->ctl[i].len,
diff --git a/drivers/gpu/drm/msm/dsi/dsi.c b/drivers/gpu/drm/msm/dsi/dsi.c
index 31fdee2..52b7e33 100644
--- a/drivers/gpu/drm/msm/dsi/dsi.c
+++ b/drivers/gpu/drm/msm/dsi/dsi.c
@@ -1,6 +1,7 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2015, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2023. Qualcomm Innovation Center, Inc. All rights reserved
*/
#include "dsi.h"
@@ -13,7 +14,7 @@ bool msm_dsi_is_cmd_mode(struct msm_dsi *msm_dsi)
return !(host_flags & MIPI_DSI_MODE_VIDEO);
}
-struct drm_dsc_config *msm_dsi_get_dsc_config(struct msm_dsi *msm_dsi)
+struct msm_compression_info *msm_dsi_get_dsc_config(struct msm_dsi *msm_dsi)
{
return msm_dsi_host_get_dsc_config(msm_dsi->host);
}
diff --git a/drivers/gpu/drm/msm/dsi/dsi.h b/drivers/gpu/drm/msm/dsi/dsi.h
index bd3763a..79ada54 100644
--- a/drivers/gpu/drm/msm/dsi/dsi.h
+++ b/drivers/gpu/drm/msm/dsi/dsi.h
@@ -1,6 +1,7 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2015, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2023. Qualcomm Innovation Center, Inc. All rights reserved
*/
#ifndef __DSI_CONNECTOR_H__
@@ -133,7 +134,7 @@ int dsi_calc_clk_rate_v2(struct msm_dsi_host *msm_host, bool is_bonded_dsi);
int dsi_calc_clk_rate_6g(struct msm_dsi_host *msm_host, bool is_bonded_dsi);
void msm_dsi_host_snapshot(struct msm_disp_state *disp_state, struct mipi_dsi_host *host);
void msm_dsi_host_test_pattern_en(struct mipi_dsi_host *host);
-struct drm_dsc_config *msm_dsi_host_get_dsc_config(struct mipi_dsi_host *host);
+struct msm_compression_info *msm_dsi_host_get_dsc_config(struct mipi_dsi_host *host);
/* dsi phy */
struct msm_dsi_phy;
diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index 18fa30e..6188f4b 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -1,6 +1,7 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2015, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2023. Qualcomm Innovation Center, Inc. All rights reserved
*/
#include <linux/clk.h>
@@ -163,6 +164,7 @@ struct msm_dsi_host {
struct drm_display_mode *mode;
struct drm_dsc_config *dsc;
+ struct msm_compression_info comp_info;
/* connected device info */
unsigned int channel;
@@ -2600,9 +2602,17 @@ void msm_dsi_host_test_pattern_en(struct mipi_dsi_host *host)
DSI_TEST_PATTERN_GEN_CMD_STREAM0_TRIGGER_SW_TRIGGER);
}
-struct drm_dsc_config *msm_dsi_host_get_dsc_config(struct mipi_dsi_host *host)
+struct msm_compression_info *msm_dsi_host_get_dsc_config(struct mipi_dsi_host *host)
{
struct msm_dsi_host *msm_host = to_msm_dsi_host(host);
+ struct msm_compression_info *comp_info = NULL;
- return msm_host->dsc;
+ if (msm_host->dsc) {
+ comp_info = &msm_host->comp_info;
+ comp_info->msm_dsc_info.drm_dsc = *msm_host->dsc;
+ comp_info->comp_type = MSM_DISPLAY_COMPRESSION_DSC;
+ comp_info->enabled = true;
+ }
+
+ return comp_info;
}
diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h
index 6a46ed7..eab0901 100644
--- a/drivers/gpu/drm/msm/msm_drv.h
+++ b/drivers/gpu/drm/msm/msm_drv.h
@@ -430,7 +430,7 @@ void msm_dsi_snapshot(struct msm_disp_state *disp_state, struct msm_dsi *msm_dsi
bool msm_dsi_is_cmd_mode(struct msm_dsi *msm_dsi);
bool msm_dsi_is_bonded_dsi(struct msm_dsi *msm_dsi);
bool msm_dsi_is_master_dsi(struct msm_dsi *msm_dsi);
-struct drm_dsc_config *msm_dsi_get_dsc_config(struct msm_dsi *msm_dsi);
+struct msm_compression_info *msm_dsi_get_dsc_config(struct msm_dsi *msm_dsi);
#else
static inline void __init msm_dsi_register(void)
{
@@ -460,7 +460,7 @@ static inline bool msm_dsi_is_master_dsi(struct msm_dsi *msm_dsi)
return false;
}
-static inline struct drm_dsc_config *msm_dsi_get_dsc_config(struct msm_dsi *msm_dsi)
+static inline struct msm_compression_info *msm_dsi_get_dsc_config(struct msm_dsi *msm_dsi)
{
return NULL;
}

--
With best wishes
Dmitry

Next message: Kirill A. Shutemov: "[PATCHv15 17/17] selftests/x86/lam: Add test cases for LAM vs thread creation"
Previous message: Kirill A. Shutemov: "[PATCHv15 13/17] selftests/x86/lam: Add mmap and SYSCALL test cases for linear-address masking"
In reply to: Kuogee Hsieh: "[PATCH v1 09/14] drm/msm/dsi: export struct msm_compression_info to dpu encoder"
Next in thread: Kuogee Hsieh: "[PATCH v1 11/14] drm/msm/disp/dpu1: add supports of new flush mechanism"
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