2 * Copyright 2014 The Chromium OS Authors. All rights reserved.
3 * Use of this source code is governed by a BSD-style license that can be
4 * found in the LICENSE file.
15 #include <xf86drmMode.h>
21 int drv_bpp_from_format(uint32_t format, size_t plane)
23 assert(plane < drv_num_planes_from_format(format));
26 case DRM_FORMAT_BGR233:
29 case DRM_FORMAT_RGB332:
30 case DRM_FORMAT_YVU420:
31 case DRM_FORMAT_YVU420_ANDROID:
35 * NV12 is laid out as follows. Each letter represents a byte.
37 * Y0_0, Y0_1, Y0_2, Y0_3, ..., Y0_N
38 * Y1_0, Y1_1, Y1_2, Y1_3, ..., Y1_N
40 * YM_0, YM_1, YM_2, YM_3, ..., YM_N
42 * Cb01_01, Cr01_01, Cb01_23, Cr01_23, ..., Cb01_(N-1)N, Cr01_(N-1)N
43 * Cb23_01, Cr23_01, Cb23_23, Cr23_23, ..., Cb23_(N-1)N, Cr23_(N-1)N
45 * Cb(M-1)M_01, Cr(M-1)M_01, ..., Cb(M-1)M_(N-1)N, Cr(M-1)M_(N-1)N
47 * Pixel (0, 0) requires Y0_0, Cb01_01 and Cr01_01. Pixel (0, 1) requires
48 * Y0_1, Cb01_01 and Cr01_01. So for a single pixel, 2 bytes of luma data
52 return (plane == 0) ? 8 : 16;
54 case DRM_FORMAT_ABGR1555:
55 case DRM_FORMAT_ABGR4444:
56 case DRM_FORMAT_ARGB1555:
57 case DRM_FORMAT_ARGB4444:
58 case DRM_FORMAT_BGR565:
59 case DRM_FORMAT_BGRA4444:
60 case DRM_FORMAT_BGRA5551:
61 case DRM_FORMAT_BGRX4444:
62 case DRM_FORMAT_BGRX5551:
65 case DRM_FORMAT_RGB565:
66 case DRM_FORMAT_RGBA4444:
67 case DRM_FORMAT_RGBA5551:
68 case DRM_FORMAT_RGBX4444:
69 case DRM_FORMAT_RGBX5551:
72 case DRM_FORMAT_XBGR1555:
73 case DRM_FORMAT_XBGR4444:
74 case DRM_FORMAT_XRGB1555:
75 case DRM_FORMAT_XRGB4444:
80 case DRM_FORMAT_BGR888:
81 case DRM_FORMAT_RGB888:
84 case DRM_FORMAT_ABGR2101010:
85 case DRM_FORMAT_ABGR8888:
86 case DRM_FORMAT_ARGB2101010:
87 case DRM_FORMAT_ARGB8888:
89 case DRM_FORMAT_BGRA1010102:
90 case DRM_FORMAT_BGRA8888:
91 case DRM_FORMAT_BGRX1010102:
92 case DRM_FORMAT_BGRX8888:
93 case DRM_FORMAT_RGBA1010102:
94 case DRM_FORMAT_RGBA8888:
95 case DRM_FORMAT_RGBX1010102:
96 case DRM_FORMAT_RGBX8888:
97 case DRM_FORMAT_XBGR2101010:
98 case DRM_FORMAT_XBGR8888:
99 case DRM_FORMAT_XRGB2101010:
100 case DRM_FORMAT_XRGB8888:
104 fprintf(stderr, "drv: UNKNOWN FORMAT %d\n", format);
109 * This function fills in the buffer object given driver aligned dimensions
110 * (in pixels) and a format. This function assumes there is just one kernel
111 * buffer per buffer object.
113 int drv_bo_from_format(struct bo *bo, uint32_t aligned_width,
114 uint32_t aligned_height, uint32_t format)
117 size_t p, num_planes;
120 num_planes = drv_num_planes_from_format(format);
124 for (p = 0; p < num_planes; p++) {
125 bo->strides[p] = drv_stride_from_format(format, aligned_width,
127 bo->sizes[p] = drv_size_from_format(format, bo->strides[p],
129 bo->offsets[p] = offset;
130 offset += bo->sizes[p];
131 bo->total_size += drv_size_from_format(format, bo->strides[p],
138 int drv_dumb_bo_create(struct bo *bo, uint32_t width, uint32_t height,
139 uint32_t format, uint32_t flags)
141 struct drm_mode_create_dumb create_dumb;
144 /* Only single-plane formats are supported */
145 assert(drv_num_planes_from_format(format) == 1);
147 memset(&create_dumb, 0, sizeof(create_dumb));
148 create_dumb.height = height;
149 create_dumb.width = width;
150 create_dumb.bpp = drv_bpp_from_format(format, 0);
151 create_dumb.flags = 0;
153 ret = drmIoctl(bo->drv->fd, DRM_IOCTL_MODE_CREATE_DUMB, &create_dumb);
155 fprintf(stderr, "drv: DRM_IOCTL_MODE_CREATE_DUMB failed\n");
161 bo->handles[0].u32 = create_dumb.handle;
163 bo->total_size = bo->sizes[0] = create_dumb.size;
164 bo->strides[0] = create_dumb.pitch;
169 int drv_dumb_bo_destroy(struct bo *bo)
171 struct drm_mode_destroy_dumb destroy_dumb;
174 memset(&destroy_dumb, 0, sizeof(destroy_dumb));
175 destroy_dumb.handle = bo->handles[0].u32;
177 ret = drmIoctl(bo->drv->fd, DRM_IOCTL_MODE_DESTROY_DUMB, &destroy_dumb);
179 fprintf(stderr, "drv: DRM_IOCTL_MODE_DESTROY_DUMB failed "
180 "(handle=%x)\n", bo->handles[0].u32);
187 int drv_gem_bo_destroy(struct bo *bo)
189 struct drm_gem_close gem_close;
193 for (plane = 0; plane < bo->num_planes; plane++) {
194 for (i = 0; i < plane; i++)
195 if (bo->handles[i].u32 == bo->handles[plane].u32)
197 /* Make sure close hasn't already been called on this handle */
201 memset(&gem_close, 0, sizeof(gem_close));
202 gem_close.handle = bo->handles[plane].u32;
204 ret = drmIoctl(bo->drv->fd, DRM_IOCTL_GEM_CLOSE, &gem_close);
206 fprintf(stderr, "drv: DRM_IOCTL_GEM_CLOSE failed "
207 "(handle=%x) error %d\n",
208 bo->handles[plane].u32, ret);
216 int drv_prime_bo_import(struct bo *bo, struct drv_import_fd_data *data)
220 struct drm_prime_handle prime_handle;
222 for (plane = 0; plane < bo->num_planes; plane++) {
223 memset(&prime_handle, 0, sizeof(prime_handle));
224 prime_handle.fd = data->fds[plane];
226 ret = drmIoctl(bo->drv->fd, DRM_IOCTL_PRIME_FD_TO_HANDLE,
230 fprintf(stderr, "drv: DRM_IOCTL_PRIME_FD_TO_HANDLE "
231 "failed (fd=%u)\n", prime_handle.fd);
234 * Need to call GEM close on planes that were opened,
235 * if any. Adjust the num_planes variable to be the
236 * plane that failed, so GEM close will be called on
237 * planes before that plane.
239 bo->num_planes = plane;
240 drv_gem_bo_destroy(bo);
244 bo->handles[plane].u32 = prime_handle.handle;
247 for (plane = 0; plane < bo->num_planes; plane++) {
248 pthread_mutex_lock(&bo->drv->driver_lock);
249 drv_increment_reference_count(bo->drv, bo, plane);
250 pthread_mutex_unlock(&bo->drv->driver_lock);
256 void *drv_dumb_bo_map(struct bo *bo, struct map_info *data, size_t plane)
260 struct drm_mode_map_dumb map_dumb;
262 memset(&map_dumb, 0, sizeof(map_dumb));
263 map_dumb.handle = bo->handles[plane].u32;
265 ret = drmIoctl(bo->drv->fd, DRM_IOCTL_MODE_MAP_DUMB, &map_dumb);
267 fprintf(stderr, "drv: DRM_IOCTL_MODE_MAP_DUMB failed \n");
271 for (i = 0; i < bo->num_planes; i++)
272 if (bo->handles[i].u32 == bo->handles[plane].u32)
273 data->length += bo->sizes[i];
275 return mmap(0, data->length, PROT_READ | PROT_WRITE, MAP_SHARED,
276 bo->drv->fd, map_dumb.offset);
279 uintptr_t drv_get_reference_count(struct driver *drv, struct bo *bo,
285 if (!drmHashLookup(drv->buffer_table, bo->handles[plane].u32, &count))
286 num = (uintptr_t) (count);
291 void drv_increment_reference_count(struct driver *drv, struct bo *bo,
294 uintptr_t num = drv_get_reference_count(drv, bo, plane);
296 /* If a value isn't in the table, drmHashDelete is a no-op */
297 drmHashDelete(drv->buffer_table, bo->handles[plane].u32);
298 drmHashInsert(drv->buffer_table, bo->handles[plane].u32,
302 void drv_decrement_reference_count(struct driver *drv, struct bo *bo,
305 uintptr_t num = drv_get_reference_count(drv, bo, plane);
307 drmHashDelete(drv->buffer_table, bo->handles[plane].u32);
310 drmHashInsert(drv->buffer_table, bo->handles[plane].u32,
314 uint32_t drv_log_base2(uint32_t value)
324 int drv_add_combination(struct driver *drv, uint32_t format,
325 struct format_metadata *metadata, uint64_t usage)
327 struct combinations *combos = &drv->backend->combos;
328 if (combos->size >= combos->allocations) {
329 struct combination *new_data;
330 combos->allocations *= 2;
331 new_data = realloc(combos->data, combos->allocations
332 * sizeof(*combos->data));
336 combos->data = new_data;
339 combos->data[combos->size].format = format;
340 combos->data[combos->size].metadata.priority = metadata->priority;
341 combos->data[combos->size].metadata.tiling = metadata->tiling;
342 combos->data[combos->size].metadata.modifier = metadata->modifier;
343 combos->data[combos->size].usage = usage;
348 int drv_add_combinations(struct driver *drv, const uint32_t *formats,
349 uint32_t num_formats, struct format_metadata *metadata,
354 for (i = 0; i < num_formats; i++) {
355 ret = drv_add_combination(drv, formats[i], metadata, usage);
363 void drv_modify_combination(struct driver *drv, uint32_t format,
364 struct format_metadata *metadata, uint64_t usage)
367 struct combination *combo;
368 /* Attempts to add the specified usage to an existing combination. */
369 for (i = 0; i < drv->backend->combos.size; i++) {
370 combo = &drv->backend->combos.data[i];
371 if (combo->format == format &&
372 combo->metadata.tiling == metadata->tiling &&
373 combo->metadata.modifier == metadata->modifier)
374 combo->usage |= usage;
378 struct kms_item *drv_query_kms(struct driver *drv, uint32_t *num_items)
380 uint64_t flag, usage;
381 struct kms_item *items;
382 uint32_t i, j, k, allocations, item_size;
384 drmModePlanePtr plane;
385 drmModePropertyPtr prop;
386 drmModePlaneResPtr resources;
387 drmModeObjectPropertiesPtr props;
389 /* Start with a power of 2 number of allocations. */
392 items = calloc(allocations, sizeof(*items));
397 * The ability to return universal planes is only complete on
398 * ChromeOS kernel versions >= v3.18. The SET_CLIENT_CAP ioctl
399 * therefore might return an error code, so don't check it. If it
400 * fails, it'll just return the plane list as overlay planes, which is
401 * fine in our case (our drivers already have cursor bits set).
402 * modetest in libdrm does the same thing.
404 drmSetClientCap(drv->fd, DRM_CLIENT_CAP_UNIVERSAL_PLANES, 1);
406 resources = drmModeGetPlaneResources(drv->fd);
410 for (i = 0; i < resources->count_planes; i++) {
411 plane = drmModeGetPlane(drv->fd, resources->planes[i]);
415 props = drmModeObjectGetProperties(drv->fd, plane->plane_id,
416 DRM_MODE_OBJECT_PLANE);
420 for (j = 0; j < props->count_props; j++) {
421 prop = drmModeGetProperty(drv->fd, props->props[j]);
423 if (strcmp(prop->name, "type") == 0) {
424 flag = props->prop_values[j];
427 drmModeFreeProperty(prop);
432 case DRM_PLANE_TYPE_OVERLAY:
433 case DRM_PLANE_TYPE_PRIMARY:
434 usage = BO_USE_SCANOUT;
436 case DRM_PLANE_TYPE_CURSOR:
437 usage = BO_USE_CURSOR;
443 for (j = 0; j < plane->count_formats; j++) {
445 for (k = 0; k < item_size; k++) {
446 if (items[k].format == plane->formats[j] &&
447 items[k].modifier == DRM_FORMAT_MOD_NONE) {
448 items[k].usage |= usage;
454 if (!found && item_size >= allocations) {
455 struct kms_item *new_data = NULL;
457 new_data = realloc(items, allocations *
468 items[item_size].format = plane->formats[j];
469 items[item_size].modifier = DRM_FORMAT_MOD_NONE;
470 items[item_size].usage = usage;
475 drmModeFreeObjectProperties(props);
476 drmModeFreePlane(plane);
480 drmModeFreePlaneResources(resources);
482 if (items && item_size == 0) {
487 *num_items = item_size;
491 int drv_add_linear_combinations(struct driver *drv, const uint32_t *formats,
492 uint32_t num_formats)
495 uint32_t i, j, num_items;
496 struct kms_item *items;
497 struct combination *combo;
498 struct format_metadata metadata;
501 metadata.priority = 1;
502 metadata.modifier = DRM_FORMAT_MOD_NONE;
504 ret = drv_add_combinations(drv, formats, num_formats, &metadata,
509 * All current drivers can scanout linear XRGB8888/ARGB8888 as a primary
510 * plane and as a cursor. Some drivers don't support
511 * drmModeGetPlaneResources, so add the combination here. Note that the
512 * kernel disregards the alpha component of ARGB unless it's an overlay
515 drv_modify_combination(drv, DRM_FORMAT_XRGB8888, &metadata,
516 BO_USE_CURSOR | BO_USE_SCANOUT);
517 drv_modify_combination(drv, DRM_FORMAT_ARGB8888, &metadata,
518 BO_USE_CURSOR | BO_USE_SCANOUT);
520 items = drv_query_kms(drv, &num_items);
521 if (!items || !num_items)
524 for (i = 0; i < num_items; i++) {
525 for (j = 0; j < drv->backend->combos.size; j++) {
526 combo = &drv->backend->combos.data[j];
527 if (items[i].format == combo->format)
528 combo->usage |= BO_USE_SCANOUT;