1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
|
From 6c12dc8ef623ad046529cb2132732e6a460cebab Mon Sep 17 00:00:00 2001
From: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Date: Thu, 25 Apr 2019 12:11:08 -0400
Subject: [PATCH 1963/2940] drm/amd/display: Hook up CRC capture support for
dce120
[Why]
Many IGT tests require CRC capture in order to confirm that the output
is visually correct.
These skip on dce120 because configure_crc and get_crc aren't set.
[How]
Hook up is_tg_enabled, configure_crc and get_crc functions on dce120's
timing generator.
The logic should be the same as DCE and DCN with some minor register
naming differences.
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: David Francis <David.Francis@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
---
.../dc/dce120/dce120_timing_generator.c | 89 +++++++++++++++++++
1 file changed, 89 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/dce120/dce120_timing_generator.c b/drivers/gpu/drm/amd/display/dc/dce120/dce120_timing_generator.c
index 5ebbbda77021..098e56962f2a 100644
--- a/drivers/gpu/drm/amd/display/dc/dce120/dce120_timing_generator.c
+++ b/drivers/gpu/drm/amd/display/dc/dce120/dce120_timing_generator.c
@@ -1114,6 +1114,92 @@ static bool dce120_arm_vert_intr(
return true;
}
+
+static bool dce120_is_tg_enabled(struct timing_generator *tg)
+{
+ struct dce110_timing_generator *tg110 = DCE110TG_FROM_TG(tg);
+ uint32_t value, field;
+
+ value = dm_read_reg_soc15(tg->ctx, mmCRTC0_CRTC_CONTROL,
+ tg110->offsets.crtc);
+ field = get_reg_field_value(value, CRTC0_CRTC_CONTROL,
+ CRTC_CURRENT_MASTER_EN_STATE);
+
+ return field == 1;
+}
+
+static bool dce120_configure_crc(struct timing_generator *tg,
+ const struct crc_params *params)
+{
+ struct dce110_timing_generator *tg110 = DCE110TG_FROM_TG(tg);
+
+ /* Cannot configure crc on a CRTC that is disabled */
+ if (!dce120_is_tg_enabled(tg))
+ return false;
+
+ /* First, disable CRC before we configure it. */
+ dm_write_reg_soc15(tg->ctx, mmCRTC0_CRTC_CRC_CNTL,
+ tg110->offsets.crtc, 0);
+
+ if (!params->enable)
+ return true;
+
+ /* Program frame boundaries */
+ /* Window A x axis start and end. */
+ CRTC_REG_UPDATE_2(CRTC0_CRTC_CRC0_WINDOWA_X_CONTROL,
+ CRTC_CRC0_WINDOWA_X_START, params->windowa_x_start,
+ CRTC_CRC0_WINDOWA_X_END, params->windowa_x_end);
+
+ /* Window A y axis start and end. */
+ CRTC_REG_UPDATE_2(CRTC0_CRTC_CRC0_WINDOWA_Y_CONTROL,
+ CRTC_CRC0_WINDOWA_Y_START, params->windowa_y_start,
+ CRTC_CRC0_WINDOWA_Y_END, params->windowa_y_end);
+
+ /* Window B x axis start and end. */
+ CRTC_REG_UPDATE_2(CRTC0_CRTC_CRC0_WINDOWB_X_CONTROL,
+ CRTC_CRC0_WINDOWB_X_START, params->windowb_x_start,
+ CRTC_CRC0_WINDOWB_X_END, params->windowb_x_end);
+
+ /* Window B y axis start and end. */
+ CRTC_REG_UPDATE_2(CRTC0_CRTC_CRC0_WINDOWB_Y_CONTROL,
+ CRTC_CRC0_WINDOWB_Y_START, params->windowb_y_start,
+ CRTC_CRC0_WINDOWB_Y_END, params->windowb_y_end);
+
+ /* Set crc mode and selection, and enable. Only using CRC0*/
+ CRTC_REG_UPDATE_3(CRTC0_CRTC_CRC_CNTL,
+ CRTC_CRC_EN, params->continuous_mode ? 1 : 0,
+ CRTC_CRC0_SELECT, params->selection,
+ CRTC_CRC_EN, 1);
+
+ return true;
+}
+
+static bool dce120_get_crc(struct timing_generator *tg, uint32_t *r_cr,
+ uint32_t *g_y, uint32_t *b_cb)
+{
+ struct dce110_timing_generator *tg110 = DCE110TG_FROM_TG(tg);
+ uint32_t value, field;
+
+ value = dm_read_reg_soc15(tg->ctx, mmCRTC0_CRTC_CRC_CNTL,
+ tg110->offsets.crtc);
+ field = get_reg_field_value(value, CRTC0_CRTC_CRC_CNTL, CRTC_CRC_EN);
+
+ /* Early return if CRC is not enabled for this CRTC */
+ if (!field)
+ return false;
+
+ value = dm_read_reg_soc15(tg->ctx, mmCRTC0_CRTC_CRC0_DATA_RG,
+ tg110->offsets.crtc);
+ *r_cr = get_reg_field_value(value, CRTC0_CRTC_CRC0_DATA_RG, CRC0_R_CR);
+ *g_y = get_reg_field_value(value, CRTC0_CRTC_CRC0_DATA_RG, CRC0_G_Y);
+
+ value = dm_read_reg_soc15(tg->ctx, mmCRTC0_CRTC_CRC0_DATA_B,
+ tg110->offsets.crtc);
+ *b_cb = get_reg_field_value(value, CRTC0_CRTC_CRC0_DATA_B, CRC0_B_CB);
+
+ return true;
+}
+
static const struct timing_generator_funcs dce120_tg_funcs = {
.validate_timing = dce120_tg_validate_timing,
.program_timing = dce120_tg_program_timing,
@@ -1145,6 +1231,9 @@ static const struct timing_generator_funcs dce120_tg_funcs = {
.set_static_screen_control = dce120_timing_generator_set_static_screen_control,
.set_test_pattern = dce120_timing_generator_set_test_pattern,
.arm_vert_intr = dce120_arm_vert_intr,
+ .is_tg_enabled = dce120_is_tg_enabled,
+ .configure_crc = dce120_configure_crc,
+ .get_crc = dce120_get_crc,
};
--
2.17.1
|
