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_fourcc.h>
28 #include <i915_drm.h>
29
30 #include "isl.h"
31 #include "common/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 return I915_TILING_Y;
45
46 case ISL_TILING_W:
47 case ISL_TILING_Yf:
48 case ISL_TILING_Ys:
49 case ISL_TILING_HIZ:
50 case ISL_TILING_CCS:
51 return I915_TILING_NONE;
52 }
53
54 unreachable("Invalid ISL tiling");
55 }
56
57 enum isl_tiling
isl_tiling_from_i915_tiling(uint32_t tiling)58 isl_tiling_from_i915_tiling(uint32_t tiling)
59 {
60 switch (tiling) {
61 case I915_TILING_NONE:
62 return ISL_TILING_LINEAR;
63
64 case I915_TILING_X:
65 return ISL_TILING_X;
66
67 case I915_TILING_Y:
68 return ISL_TILING_Y0;
69 }
70
71 unreachable("Invalid i915 tiling");
72 }
73
74 static const struct isl_drm_modifier_info modifier_info[] = {
75 {
76 .modifier = DRM_FORMAT_MOD_NONE,
77 .name = "DRM_FORMAT_MOD_NONE",
78 .tiling = ISL_TILING_LINEAR,
79 },
80 {
81 .modifier = I915_FORMAT_MOD_X_TILED,
82 .name = "I915_FORMAT_MOD_X_TILED",
83 .tiling = ISL_TILING_X,
84 },
85 {
86 .modifier = I915_FORMAT_MOD_Y_TILED,
87 .name = "I915_FORMAT_MOD_Y_TILED",
88 .tiling = ISL_TILING_Y0,
89 },
90 {
91 .modifier = I915_FORMAT_MOD_Y_TILED_CCS,
92 .name = "I915_FORMAT_MOD_Y_TILED_CCS",
93 .tiling = ISL_TILING_Y0,
94 .aux_usage = ISL_AUX_USAGE_CCS_E,
95 .supports_clear_color = false,
96 },
97 };
98
99 const struct isl_drm_modifier_info *
isl_drm_modifier_get_info(uint64_t modifier)100 isl_drm_modifier_get_info(uint64_t modifier)
101 {
102 for (unsigned i = 0; i < ARRAY_SIZE(modifier_info); i++) {
103 if (modifier_info[i].modifier == modifier)
104 return &modifier_info[i];
105 }
106
107 return NULL;
108 }
109