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25#include <linux/bug.h>
26#include <linux/ctype.h>
27#include <linux/export.h>
28#include <linux/kernel.h>
29
30#include <drm/drm_device.h>
31#include <drm/drm_fourcc.h>
32
33
34
35
36
37
38
39
40
41uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth)
42{
43 uint32_t fmt = DRM_FORMAT_INVALID;
44
45 switch (bpp) {
46 case 8:
47 if (depth == 8)
48 fmt = DRM_FORMAT_C8;
49 break;
50
51 case 16:
52 switch (depth) {
53 case 15:
54 fmt = DRM_FORMAT_XRGB1555;
55 break;
56 case 16:
57 fmt = DRM_FORMAT_RGB565;
58 break;
59 default:
60 break;
61 }
62 break;
63
64 case 24:
65 if (depth == 24)
66 fmt = DRM_FORMAT_RGB888;
67 break;
68
69 case 32:
70 switch (depth) {
71 case 24:
72 fmt = DRM_FORMAT_XRGB8888;
73 break;
74 case 30:
75 fmt = DRM_FORMAT_XRGB2101010;
76 break;
77 case 32:
78 fmt = DRM_FORMAT_ARGB8888;
79 break;
80 default:
81 break;
82 }
83 break;
84
85 default:
86 break;
87 }
88
89 return fmt;
90}
91EXPORT_SYMBOL(drm_mode_legacy_fb_format);
92
93
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102
103
104uint32_t drm_driver_legacy_fb_format(struct drm_device *dev,
105 uint32_t bpp, uint32_t depth)
106{
107 uint32_t fmt = drm_mode_legacy_fb_format(bpp, depth);
108
109 if (dev->mode_config.quirk_addfb_prefer_host_byte_order) {
110 if (fmt == DRM_FORMAT_XRGB8888)
111 fmt = DRM_FORMAT_HOST_XRGB8888;
112 if (fmt == DRM_FORMAT_ARGB8888)
113 fmt = DRM_FORMAT_HOST_ARGB8888;
114 if (fmt == DRM_FORMAT_RGB565)
115 fmt = DRM_FORMAT_HOST_RGB565;
116 if (fmt == DRM_FORMAT_XRGB1555)
117 fmt = DRM_FORMAT_HOST_XRGB1555;
118 }
119
120 if (dev->mode_config.quirk_addfb_prefer_xbgr_30bpp &&
121 fmt == DRM_FORMAT_XRGB2101010)
122 fmt = DRM_FORMAT_XBGR2101010;
123
124 return fmt;
125}
126EXPORT_SYMBOL(drm_driver_legacy_fb_format);
127
128
129
130
131
132const struct drm_format_info *__drm_format_info(u32 format)
133{
134 static const struct drm_format_info formats[] = {
135 { .format = DRM_FORMAT_C8, .depth = 8, .num_planes = 1, .cpp = { 1, 0, 0 }, .hsub = 1, .vsub = 1 },
136 { .format = DRM_FORMAT_RGB332, .depth = 8, .num_planes = 1, .cpp = { 1, 0, 0 }, .hsub = 1, .vsub = 1 },
137 { .format = DRM_FORMAT_BGR233, .depth = 8, .num_planes = 1, .cpp = { 1, 0, 0 }, .hsub = 1, .vsub = 1 },
138 { .format = DRM_FORMAT_XRGB4444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
139 { .format = DRM_FORMAT_XBGR4444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
140 { .format = DRM_FORMAT_RGBX4444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
141 { .format = DRM_FORMAT_BGRX4444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
142 { .format = DRM_FORMAT_ARGB4444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
143 { .format = DRM_FORMAT_ABGR4444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
144 { .format = DRM_FORMAT_RGBA4444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
145 { .format = DRM_FORMAT_BGRA4444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
146 { .format = DRM_FORMAT_XRGB1555, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
147 { .format = DRM_FORMAT_XBGR1555, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
148 { .format = DRM_FORMAT_RGBX5551, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
149 { .format = DRM_FORMAT_BGRX5551, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
150 { .format = DRM_FORMAT_ARGB1555, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
151 { .format = DRM_FORMAT_ABGR1555, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
152 { .format = DRM_FORMAT_RGBA5551, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
153 { .format = DRM_FORMAT_BGRA5551, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
154 { .format = DRM_FORMAT_RGB565, .depth = 16, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
155 { .format = DRM_FORMAT_BGR565, .depth = 16, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
156 { .format = DRM_FORMAT_RGB888, .depth = 24, .num_planes = 1, .cpp = { 3, 0, 0 }, .hsub = 1, .vsub = 1 },
157 { .format = DRM_FORMAT_BGR888, .depth = 24, .num_planes = 1, .cpp = { 3, 0, 0 }, .hsub = 1, .vsub = 1 },
158 { .format = DRM_FORMAT_XRGB8888, .depth = 24, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
159 { .format = DRM_FORMAT_XBGR8888, .depth = 24, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
160 { .format = DRM_FORMAT_RGBX8888, .depth = 24, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
161 { .format = DRM_FORMAT_BGRX8888, .depth = 24, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
162 { .format = DRM_FORMAT_RGB565_A8, .depth = 24, .num_planes = 2, .cpp = { 2, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
163 { .format = DRM_FORMAT_BGR565_A8, .depth = 24, .num_planes = 2, .cpp = { 2, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
164 { .format = DRM_FORMAT_XRGB2101010, .depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
165 { .format = DRM_FORMAT_XBGR2101010, .depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
166 { .format = DRM_FORMAT_RGBX1010102, .depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
167 { .format = DRM_FORMAT_BGRX1010102, .depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
168 { .format = DRM_FORMAT_ARGB2101010, .depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
169 { .format = DRM_FORMAT_ABGR2101010, .depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
170 { .format = DRM_FORMAT_RGBA1010102, .depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
171 { .format = DRM_FORMAT_BGRA1010102, .depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
172 { .format = DRM_FORMAT_ARGB8888, .depth = 32, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
173 { .format = DRM_FORMAT_ABGR8888, .depth = 32, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
174 { .format = DRM_FORMAT_RGBA8888, .depth = 32, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
175 { .format = DRM_FORMAT_BGRA8888, .depth = 32, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
176 { .format = DRM_FORMAT_XRGB16161616F, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1 },
177 { .format = DRM_FORMAT_XBGR16161616F, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1 },
178 { .format = DRM_FORMAT_ARGB16161616F, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
179 { .format = DRM_FORMAT_ABGR16161616F, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
180 { .format = DRM_FORMAT_AXBXGXRX106106106106, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
181 { .format = DRM_FORMAT_XRGB16161616, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1 },
182 { .format = DRM_FORMAT_XBGR16161616, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1 },
183 { .format = DRM_FORMAT_ARGB16161616, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
184 { .format = DRM_FORMAT_ABGR16161616, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
185 { .format = DRM_FORMAT_RGB888_A8, .depth = 32, .num_planes = 2, .cpp = { 3, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
186 { .format = DRM_FORMAT_BGR888_A8, .depth = 32, .num_planes = 2, .cpp = { 3, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
187 { .format = DRM_FORMAT_XRGB8888_A8, .depth = 32, .num_planes = 2, .cpp = { 4, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
188 { .format = DRM_FORMAT_XBGR8888_A8, .depth = 32, .num_planes = 2, .cpp = { 4, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
189 { .format = DRM_FORMAT_RGBX8888_A8, .depth = 32, .num_planes = 2, .cpp = { 4, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
190 { .format = DRM_FORMAT_BGRX8888_A8, .depth = 32, .num_planes = 2, .cpp = { 4, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
191 { .format = DRM_FORMAT_YUV410, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 4, .vsub = 4, .is_yuv = true },
192 { .format = DRM_FORMAT_YVU410, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 4, .vsub = 4, .is_yuv = true },
193 { .format = DRM_FORMAT_YUV411, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 4, .vsub = 1, .is_yuv = true },
194 { .format = DRM_FORMAT_YVU411, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 4, .vsub = 1, .is_yuv = true },
195 { .format = DRM_FORMAT_YUV420, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 2, .vsub = 2, .is_yuv = true },
196 { .format = DRM_FORMAT_YVU420, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 2, .vsub = 2, .is_yuv = true },
197 { .format = DRM_FORMAT_YUV422, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 2, .vsub = 1, .is_yuv = true },
198 { .format = DRM_FORMAT_YVU422, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 2, .vsub = 1, .is_yuv = true },
199 { .format = DRM_FORMAT_YUV444, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 1, .vsub = 1, .is_yuv = true },
200 { .format = DRM_FORMAT_YVU444, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 1, .vsub = 1, .is_yuv = true },
201 { .format = DRM_FORMAT_NV12, .depth = 0, .num_planes = 2, .cpp = { 1, 2, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true },
202 { .format = DRM_FORMAT_NV21, .depth = 0, .num_planes = 2, .cpp = { 1, 2, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true },
203 { .format = DRM_FORMAT_NV16, .depth = 0, .num_planes = 2, .cpp = { 1, 2, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
204 { .format = DRM_FORMAT_NV61, .depth = 0, .num_planes = 2, .cpp = { 1, 2, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
205 { .format = DRM_FORMAT_NV24, .depth = 0, .num_planes = 2, .cpp = { 1, 2, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
206 { .format = DRM_FORMAT_NV42, .depth = 0, .num_planes = 2, .cpp = { 1, 2, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
207 { .format = DRM_FORMAT_YUYV, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
208 { .format = DRM_FORMAT_YVYU, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
209 { .format = DRM_FORMAT_UYVY, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
210 { .format = DRM_FORMAT_VYUY, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
211 { .format = DRM_FORMAT_XYUV8888, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
212 { .format = DRM_FORMAT_VUY888, .depth = 0, .num_planes = 1, .cpp = { 3, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
213 { .format = DRM_FORMAT_AYUV, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true },
214 { .format = DRM_FORMAT_Y210, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
215 { .format = DRM_FORMAT_Y212, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
216 { .format = DRM_FORMAT_Y216, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
217 { .format = DRM_FORMAT_Y410, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true },
218 { .format = DRM_FORMAT_Y412, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true },
219 { .format = DRM_FORMAT_Y416, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true },
220 { .format = DRM_FORMAT_XVYU2101010, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
221 { .format = DRM_FORMAT_XVYU12_16161616, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
222 { .format = DRM_FORMAT_XVYU16161616, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
223 { .format = DRM_FORMAT_Y0L0, .depth = 0, .num_planes = 1,
224 .char_per_block = { 8, 0, 0 }, .block_w = { 2, 0, 0 }, .block_h = { 2, 0, 0 },
225 .hsub = 2, .vsub = 2, .has_alpha = true, .is_yuv = true },
226 { .format = DRM_FORMAT_X0L0, .depth = 0, .num_planes = 1,
227 .char_per_block = { 8, 0, 0 }, .block_w = { 2, 0, 0 }, .block_h = { 2, 0, 0 },
228 .hsub = 2, .vsub = 2, .is_yuv = true },
229 { .format = DRM_FORMAT_Y0L2, .depth = 0, .num_planes = 1,
230 .char_per_block = { 8, 0, 0 }, .block_w = { 2, 0, 0 }, .block_h = { 2, 0, 0 },
231 .hsub = 2, .vsub = 2, .has_alpha = true, .is_yuv = true },
232 { .format = DRM_FORMAT_X0L2, .depth = 0, .num_planes = 1,
233 .char_per_block = { 8, 0, 0 }, .block_w = { 2, 0, 0 }, .block_h = { 2, 0, 0 },
234 .hsub = 2, .vsub = 2, .is_yuv = true },
235 { .format = DRM_FORMAT_P010, .depth = 0, .num_planes = 2,
236 .char_per_block = { 2, 4, 0 }, .block_w = { 1, 1, 0 }, .block_h = { 1, 1, 0 },
237 .hsub = 2, .vsub = 2, .is_yuv = true},
238 { .format = DRM_FORMAT_P012, .depth = 0, .num_planes = 2,
239 .char_per_block = { 2, 4, 0 }, .block_w = { 1, 1, 0 }, .block_h = { 1, 1, 0 },
240 .hsub = 2, .vsub = 2, .is_yuv = true},
241 { .format = DRM_FORMAT_P016, .depth = 0, .num_planes = 2,
242 .char_per_block = { 2, 4, 0 }, .block_w = { 1, 1, 0 }, .block_h = { 1, 1, 0 },
243 .hsub = 2, .vsub = 2, .is_yuv = true},
244 { .format = DRM_FORMAT_P210, .depth = 0,
245 .num_planes = 2, .char_per_block = { 2, 4, 0 },
246 .block_w = { 1, 1, 0 }, .block_h = { 1, 1, 0 }, .hsub = 2,
247 .vsub = 1, .is_yuv = true },
248 { .format = DRM_FORMAT_VUY101010, .depth = 0,
249 .num_planes = 1, .cpp = { 0, 0, 0 }, .hsub = 1, .vsub = 1,
250 .is_yuv = true },
251 { .format = DRM_FORMAT_YUV420_8BIT, .depth = 0,
252 .num_planes = 1, .cpp = { 0, 0, 0 }, .hsub = 2, .vsub = 2,
253 .is_yuv = true },
254 { .format = DRM_FORMAT_YUV420_10BIT, .depth = 0,
255 .num_planes = 1, .cpp = { 0, 0, 0 }, .hsub = 2, .vsub = 2,
256 .is_yuv = true },
257 { .format = DRM_FORMAT_NV15, .depth = 0,
258 .num_planes = 2, .char_per_block = { 5, 5, 0 },
259 .block_w = { 4, 2, 0 }, .block_h = { 1, 1, 0 }, .hsub = 2,
260 .vsub = 2, .is_yuv = true },
261 { .format = DRM_FORMAT_Q410, .depth = 0,
262 .num_planes = 3, .char_per_block = { 2, 2, 2 },
263 .block_w = { 1, 1, 1 }, .block_h = { 1, 1, 1 }, .hsub = 0,
264 .vsub = 0, .is_yuv = true },
265 { .format = DRM_FORMAT_Q401, .depth = 0,
266 .num_planes = 3, .char_per_block = { 2, 2, 2 },
267 .block_w = { 1, 1, 1 }, .block_h = { 1, 1, 1 }, .hsub = 0,
268 .vsub = 0, .is_yuv = true },
269 };
270
271 unsigned int i;
272
273 for (i = 0; i < ARRAY_SIZE(formats); ++i) {
274 if (formats[i].format == format)
275 return &formats[i];
276 }
277
278 return NULL;
279}
280
281
282
283
284
285
286
287
288
289
290
291
292const struct drm_format_info *drm_format_info(u32 format)
293{
294 const struct drm_format_info *info;
295
296 info = __drm_format_info(format);
297 WARN_ON(!info);
298 return info;
299}
300EXPORT_SYMBOL(drm_format_info);
301
302
303
304
305
306
307
308
309
310
311const struct drm_format_info *
312drm_get_format_info(struct drm_device *dev,
313 const struct drm_mode_fb_cmd2 *mode_cmd)
314{
315 const struct drm_format_info *info = NULL;
316
317 if (dev->mode_config.funcs->get_format_info)
318 info = dev->mode_config.funcs->get_format_info(mode_cmd);
319
320 if (!info)
321 info = drm_format_info(mode_cmd->pixel_format);
322
323 return info;
324}
325EXPORT_SYMBOL(drm_get_format_info);
326
327
328
329
330
331
332
333
334
335unsigned int drm_format_info_block_width(const struct drm_format_info *info,
336 int plane)
337{
338 if (!info || plane < 0 || plane >= info->num_planes)
339 return 0;
340
341 if (!info->block_w[plane])
342 return 1;
343 return info->block_w[plane];
344}
345EXPORT_SYMBOL(drm_format_info_block_width);
346
347
348
349
350
351
352
353
354
355unsigned int drm_format_info_block_height(const struct drm_format_info *info,
356 int plane)
357{
358 if (!info || plane < 0 || plane >= info->num_planes)
359 return 0;
360
361 if (!info->block_h[plane])
362 return 1;
363 return info->block_h[plane];
364}
365EXPORT_SYMBOL(drm_format_info_block_height);
366
367
368
369
370
371
372
373
374
375
376
377uint64_t drm_format_info_min_pitch(const struct drm_format_info *info,
378 int plane, unsigned int buffer_width)
379{
380 if (!info || plane < 0 || plane >= info->num_planes)
381 return 0;
382
383 return DIV_ROUND_UP_ULL((u64)buffer_width * info->char_per_block[plane],
384 drm_format_info_block_width(info, plane) *
385 drm_format_info_block_height(info, plane));
386}
387EXPORT_SYMBOL(drm_format_info_min_pitch);
388