]> Git Repo - linux.git/blob - drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dspp.c
Merge tag 'amd-drm-next-6.5-2023-06-09' of https://gitlab.freedesktop.org/agd5f/linux...
[linux.git] / drivers / gpu / drm / msm / disp / dpu1 / dpu_hw_dspp.c
1 // SPDX-License-Identifier: GPL-2.0-only
2 /* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved.
3  */
4
5 #include "dpu_hwio.h"
6 #include "dpu_hw_catalog.h"
7 #include "dpu_hw_lm.h"
8 #include "dpu_hw_dspp.h"
9 #include "dpu_kms.h"
10
11
12 /* DSPP_PCC */
13 #define PCC_EN BIT(0)
14 #define PCC_DIS 0
15 #define PCC_RED_R_OFF 0x10
16 #define PCC_RED_G_OFF 0x1C
17 #define PCC_RED_B_OFF 0x28
18 #define PCC_GREEN_R_OFF 0x14
19 #define PCC_GREEN_G_OFF 0x20
20 #define PCC_GREEN_B_OFF 0x2C
21 #define PCC_BLUE_R_OFF 0x18
22 #define PCC_BLUE_G_OFF 0x24
23 #define PCC_BLUE_B_OFF 0x30
24
25 static void dpu_setup_dspp_pcc(struct dpu_hw_dspp *ctx,
26                 struct dpu_hw_pcc_cfg *cfg)
27 {
28
29         u32 base;
30
31         if (!ctx) {
32                 DRM_ERROR("invalid ctx %pK\n", ctx);
33                 return;
34         }
35
36         base = ctx->cap->sblk->pcc.base;
37
38         if (!base) {
39                 DRM_ERROR("invalid ctx %pK pcc base 0x%x\n", ctx, base);
40                 return;
41         }
42
43         if (!cfg) {
44                 DRM_DEBUG_DRIVER("disable pcc feature\n");
45                 DPU_REG_WRITE(&ctx->hw, base, PCC_DIS);
46                 return;
47         }
48
49         DPU_REG_WRITE(&ctx->hw, base + PCC_RED_R_OFF, cfg->r.r);
50         DPU_REG_WRITE(&ctx->hw, base + PCC_RED_G_OFF, cfg->r.g);
51         DPU_REG_WRITE(&ctx->hw, base + PCC_RED_B_OFF, cfg->r.b);
52
53         DPU_REG_WRITE(&ctx->hw, base + PCC_GREEN_R_OFF, cfg->g.r);
54         DPU_REG_WRITE(&ctx->hw, base + PCC_GREEN_G_OFF, cfg->g.g);
55         DPU_REG_WRITE(&ctx->hw, base + PCC_GREEN_B_OFF, cfg->g.b);
56
57         DPU_REG_WRITE(&ctx->hw, base + PCC_BLUE_R_OFF, cfg->b.r);
58         DPU_REG_WRITE(&ctx->hw, base + PCC_BLUE_G_OFF, cfg->b.g);
59         DPU_REG_WRITE(&ctx->hw, base + PCC_BLUE_B_OFF, cfg->b.b);
60
61         DPU_REG_WRITE(&ctx->hw, base, PCC_EN);
62 }
63
64 static void _setup_dspp_ops(struct dpu_hw_dspp *c,
65                 unsigned long features)
66 {
67         if (test_bit(DPU_DSPP_PCC, &features))
68                 c->ops.setup_pcc = dpu_setup_dspp_pcc;
69 }
70
71 static const struct dpu_dspp_cfg *_dspp_offset(enum dpu_dspp dspp,
72                 const struct dpu_mdss_cfg *m,
73                 void __iomem *addr,
74                 struct dpu_hw_blk_reg_map *b)
75 {
76         int i;
77
78         if (!m || !addr || !b)
79                 return ERR_PTR(-EINVAL);
80
81         for (i = 0; i < m->dspp_count; i++) {
82                 if (dspp == m->dspp[i].id) {
83                         b->blk_addr = addr + m->dspp[i].base;
84                         b->log_mask = DPU_DBG_MASK_DSPP;
85                         return &m->dspp[i];
86                 }
87         }
88
89         return ERR_PTR(-EINVAL);
90 }
91
92 struct dpu_hw_dspp *dpu_hw_dspp_init(enum dpu_dspp idx,
93                         void __iomem *addr,
94                         const struct dpu_mdss_cfg *m)
95 {
96         struct dpu_hw_dspp *c;
97         const struct dpu_dspp_cfg *cfg;
98
99         if (!addr || !m)
100                 return ERR_PTR(-EINVAL);
101
102         c = kzalloc(sizeof(*c), GFP_KERNEL);
103         if (!c)
104                 return ERR_PTR(-ENOMEM);
105
106         cfg = _dspp_offset(idx, m, addr, &c->hw);
107         if (IS_ERR_OR_NULL(cfg)) {
108                 kfree(c);
109                 return ERR_PTR(-EINVAL);
110         }
111
112         /* Assign ops */
113         c->idx = idx;
114         c->cap = cfg;
115         _setup_dspp_ops(c, c->cap->features);
116
117         return c;
118 }
119
120 void dpu_hw_dspp_destroy(struct dpu_hw_dspp *dspp)
121 {
122         kfree(dspp);
123 }
124
125
This page took 0.039781 seconds and 4 git commands to generate.