From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c | 101 ++++++++++++++++++++++++++++++--------------------
1 files changed, 61 insertions(+), 40 deletions(-)
diff --git a/kernel/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c b/kernel/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c
index cc3a623..bea4ab5 100644
--- a/kernel/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c
+++ b/kernel/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c
@@ -1,13 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
*/
#include <linux/iopoll.h>
@@ -16,7 +8,6 @@
#include "dpu_hwio.h"
#include "dpu_hw_catalog.h"
#include "dpu_hw_pingpong.h"
-#include "dpu_dbg.h"
#include "dpu_kms.h"
#include "dpu_trace.h"
@@ -37,8 +28,18 @@
#define PP_FBC_BUDGET_CTL 0x038
#define PP_FBC_LOSSY_MODE 0x03C
-static struct dpu_pingpong_cfg *_pingpong_offset(enum dpu_pingpong pp,
- struct dpu_mdss_cfg *m,
+#define PP_DITHER_EN 0x000
+#define PP_DITHER_BITDEPTH 0x004
+#define PP_DITHER_MATRIX 0x008
+
+#define DITHER_DEPTH_MAP_INDEX 9
+
+static u32 dither_depth_map[DITHER_DEPTH_MAP_INDEX] = {
+ 0, 0, 0, 0, 0, 0, 0, 1, 2
+};
+
+static const struct dpu_pingpong_cfg *_pingpong_offset(enum dpu_pingpong pp,
+ const struct dpu_mdss_cfg *m,
void __iomem *addr,
struct dpu_hw_blk_reg_map *b)
{
@@ -56,6 +57,37 @@
}
return ERR_PTR(-EINVAL);
+}
+
+static void dpu_hw_pp_setup_dither(struct dpu_hw_pingpong *pp,
+ struct dpu_hw_dither_cfg *cfg)
+{
+ struct dpu_hw_blk_reg_map *c;
+ u32 i, base, data = 0;
+
+ c = &pp->hw;
+ base = pp->caps->sblk->dither.base;
+ if (!cfg) {
+ DPU_REG_WRITE(c, base + PP_DITHER_EN, 0);
+ return;
+ }
+
+ data = dither_depth_map[cfg->c0_bitdepth] & REG_MASK(2);
+ data |= (dither_depth_map[cfg->c1_bitdepth] & REG_MASK(2)) << 2;
+ data |= (dither_depth_map[cfg->c2_bitdepth] & REG_MASK(2)) << 4;
+ data |= (dither_depth_map[cfg->c3_bitdepth] & REG_MASK(2)) << 6;
+ data |= (cfg->temporal_en) ? (1 << 8) : 0;
+
+ DPU_REG_WRITE(c, base + PP_DITHER_BITDEPTH, data);
+
+ for (i = 0; i < DITHER_MATRIX_SZ - 3; i += 4) {
+ data = (cfg->matrix[i] & REG_MASK(4)) |
+ ((cfg->matrix[i + 1] & REG_MASK(4)) << 4) |
+ ((cfg->matrix[i + 2] & REG_MASK(4)) << 8) |
+ ((cfg->matrix[i + 3] & REG_MASK(4)) << 12);
+ DPU_REG_WRITE(c, base + PP_DITHER_MATRIX + i, data);
+ }
+ DPU_REG_WRITE(c, base + PP_DITHER_EN, 1);
}
static int dpu_hw_pp_setup_te_config(struct dpu_hw_pingpong *pp,
@@ -177,7 +209,7 @@
height = DPU_REG_READ(c, PP_SYNC_CONFIG_HEIGHT) & 0xFFFF;
if (height < init)
- goto line_count_exit;
+ return line;
line = DPU_REG_READ(c, PP_INT_COUNT_VAL) & 0xFFFF;
@@ -186,33 +218,31 @@
else
line -= init;
-line_count_exit:
return line;
}
-static void _setup_pingpong_ops(struct dpu_hw_pingpong_ops *ops,
- const struct dpu_pingpong_cfg *hw_cap)
+static void _setup_pingpong_ops(struct dpu_hw_pingpong *c,
+ unsigned long features)
{
- ops->setup_tearcheck = dpu_hw_pp_setup_te_config;
- ops->enable_tearcheck = dpu_hw_pp_enable_te;
- ops->connect_external_te = dpu_hw_pp_connect_external_te;
- ops->get_vsync_info = dpu_hw_pp_get_vsync_info;
- ops->poll_timeout_wr_ptr = dpu_hw_pp_poll_timeout_wr_ptr;
- ops->get_line_count = dpu_hw_pp_get_line_count;
+ c->ops.setup_tearcheck = dpu_hw_pp_setup_te_config;
+ c->ops.enable_tearcheck = dpu_hw_pp_enable_te;
+ c->ops.connect_external_te = dpu_hw_pp_connect_external_te;
+ c->ops.get_vsync_info = dpu_hw_pp_get_vsync_info;
+ c->ops.poll_timeout_wr_ptr = dpu_hw_pp_poll_timeout_wr_ptr;
+ c->ops.get_line_count = dpu_hw_pp_get_line_count;
+
+ if (test_bit(DPU_PINGPONG_DITHER, &features))
+ c->ops.setup_dither = dpu_hw_pp_setup_dither;
};
-static struct dpu_hw_blk_ops dpu_hw_ops = {
- .start = NULL,
- .stop = NULL,
-};
+static struct dpu_hw_blk_ops dpu_hw_ops;
struct dpu_hw_pingpong *dpu_hw_pingpong_init(enum dpu_pingpong idx,
void __iomem *addr,
- struct dpu_mdss_cfg *m)
+ const struct dpu_mdss_cfg *m)
{
struct dpu_hw_pingpong *c;
- struct dpu_pingpong_cfg *cfg;
- int rc;
+ const struct dpu_pingpong_cfg *cfg;
c = kzalloc(sizeof(*c), GFP_KERNEL);
if (!c)
@@ -226,20 +256,11 @@
c->idx = idx;
c->caps = cfg;
- _setup_pingpong_ops(&c->ops, c->caps);
+ _setup_pingpong_ops(c, c->caps->features);
- rc = dpu_hw_blk_init(&c->base, DPU_HW_BLK_PINGPONG, idx, &dpu_hw_ops);
- if (rc) {
- DPU_ERROR("failed to init hw blk %d\n", rc);
- goto blk_init_error;
- }
+ dpu_hw_blk_init(&c->base, DPU_HW_BLK_PINGPONG, idx, &dpu_hw_ops);
return c;
-
-blk_init_error:
- kzfree(c);
-
- return ERR_PTR(rc);
}
void dpu_hw_pingpong_destroy(struct dpu_hw_pingpong *pp)
--
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