1 /*
2 * Copyright 2017 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
23
24 #include <assert.h>
25 #include <stdlib.h>
26
27 #include "drm-uapi/drm_fourcc.h"
28 #include "drm-uapi/i915_drm.h"
29
30 #include "isl.h"
31 #include "dev/gen_device_info.h"
32
33 uint32_t
isl_tiling_to_i915_tiling(enum isl_tiling tiling)34 isl_tiling_to_i915_tiling(enum isl_tiling tiling)
35 {
36 switch (tiling) {
37 case ISL_TILING_LINEAR:
38 return I915_TILING_NONE;
39
40 case ISL_TILING_X:
41 return I915_TILING_X;
42
43 case ISL_TILING_Y0:
44 case ISL_TILING_HIZ:
45 case ISL_TILING_CCS:
46 return I915_TILING_Y;
47
48 case ISL_TILING_W:
49 case ISL_TILING_Yf:
50 case ISL_TILING_Ys:
51 case ISL_TILING_GEN12_CCS:
52 return I915_TILING_NONE;
53 }
54
55 unreachable("Invalid ISL tiling");
56 }
57
58 enum isl_tiling
isl_tiling_from_i915_tiling(uint32_t tiling)59 isl_tiling_from_i915_tiling(uint32_t tiling)
60 {
61 switch (tiling) {
62 case I915_TILING_NONE:
63 return ISL_TILING_LINEAR;
64
65 case I915_TILING_X:
66 return ISL_TILING_X;
67
68 case I915_TILING_Y:
69 return ISL_TILING_Y0;
70 }
71
72 unreachable("Invalid i915 tiling");
73 }
74
75 static const struct isl_drm_modifier_info modifier_info[] = {
76 {
77 .modifier = DRM_FORMAT_MOD_NONE,
78 .name = "DRM_FORMAT_MOD_NONE",
79 .tiling = ISL_TILING_LINEAR,
80 },
81 {
82 .modifier = I915_FORMAT_MOD_X_TILED,
83 .name = "I915_FORMAT_MOD_X_TILED",
84 .tiling = ISL_TILING_X,
85 },
86 {
87 .modifier = I915_FORMAT_MOD_Y_TILED,
88 .name = "I915_FORMAT_MOD_Y_TILED",
89 .tiling = ISL_TILING_Y0,
90 },
91 {
92 .modifier = I915_FORMAT_MOD_Y_TILED_CCS,
93 .name = "I915_FORMAT_MOD_Y_TILED_CCS",
94 .tiling = ISL_TILING_Y0,
95 .aux_usage = ISL_AUX_USAGE_CCS_E,
96 .supports_clear_color = false,
97 },
98 {
99 .modifier = I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS,
100 .name = "I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS",
101 .tiling = ISL_TILING_Y0,
102 .aux_usage = ISL_AUX_USAGE_GEN12_CCS_E,
103 .supports_clear_color = false,
104 },
105 {
106 .modifier = I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS,
107 .name = "I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS",
108 .tiling = ISL_TILING_Y0,
109 .aux_usage = ISL_AUX_USAGE_MC,
110 .supports_clear_color = false,
111 },
112 };
113
114 const struct isl_drm_modifier_info *
isl_drm_modifier_get_info(uint64_t modifier)115 isl_drm_modifier_get_info(uint64_t modifier)
116 {
117 for (unsigned i = 0; i < ARRAY_SIZE(modifier_info); i++) {
118 if (modifier_info[i].modifier == modifier)
119 return &modifier_info[i];
120 }
121
122 return NULL;
123 }
124