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  1/*
  2 * Copyright © 2014-2015 Broadcom
  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/**
 25 * DOC: Render command list generation
 26 *
 27 * In the VC4 driver, render command list generation is performed by the
 28 * kernel instead of userspace.  We do this because validating a
 29 * user-submitted command list is hard to get right and has high CPU overhead,
 30 * while the number of valid configurations for render command lists is
 31 * actually fairly low.
 32 */
 33
 34#include "uapi/drm/vc4_drm.h"
 35#include "vc4_drv.h"
 36#include "vc4_packet.h"
 37
 38struct vc4_rcl_setup {
 39	struct drm_gem_cma_object *color_read;
 40	struct drm_gem_cma_object *color_write;
 41	struct drm_gem_cma_object *zs_read;
 42	struct drm_gem_cma_object *zs_write;
 43	struct drm_gem_cma_object *msaa_color_write;
 44	struct drm_gem_cma_object *msaa_zs_write;
 45
 46	struct drm_gem_cma_object *rcl;
 47	u32 next_offset;
 48
 49	u32 next_write_bo_index;
 50};
 51
 52static inline void rcl_u8(struct vc4_rcl_setup *setup, u8 val)
 53{
 54	*(u8 *)(setup->rcl->vaddr + setup->next_offset) = val;
 55	setup->next_offset += 1;
 56}
 57
 58static inline void rcl_u16(struct vc4_rcl_setup *setup, u16 val)
 59{
 60	*(u16 *)(setup->rcl->vaddr + setup->next_offset) = val;
 61	setup->next_offset += 2;
 62}
 63
 64static inline void rcl_u32(struct vc4_rcl_setup *setup, u32 val)
 65{
 66	*(u32 *)(setup->rcl->vaddr + setup->next_offset) = val;
 67	setup->next_offset += 4;
 68}
 69
 70/*
 71 * Emits a no-op STORE_TILE_BUFFER_GENERAL.
 72 *
 73 * If we emit a PACKET_TILE_COORDINATES, it must be followed by a store of
 74 * some sort before another load is triggered.
 75 */
 76static void vc4_store_before_load(struct vc4_rcl_setup *setup)
 77{
 78	rcl_u8(setup, VC4_PACKET_STORE_TILE_BUFFER_GENERAL);
 79	rcl_u16(setup,
 80		VC4_SET_FIELD(VC4_LOADSTORE_TILE_BUFFER_NONE,
 81			      VC4_LOADSTORE_TILE_BUFFER_BUFFER) |
 82		VC4_STORE_TILE_BUFFER_DISABLE_COLOR_CLEAR |
 83		VC4_STORE_TILE_BUFFER_DISABLE_ZS_CLEAR |
 84		VC4_STORE_TILE_BUFFER_DISABLE_VG_MASK_CLEAR);
 85	rcl_u32(setup, 0); /* no address, since we're in None mode */
 86}
 87
 88/*
 89 * Calculates the physical address of the start of a tile in a RCL surface.
 90 *
 91 * Unlike the other load/store packets,
 92 * VC4_PACKET_LOAD/STORE_FULL_RES_TILE_BUFFER don't look at the tile
 93 * coordinates packet, and instead just store to the address given.
 94 */
 95static uint32_t vc4_full_res_offset(struct vc4_exec_info *exec,
 96				    struct drm_gem_cma_object *bo,
 97				    struct drm_vc4_submit_rcl_surface *surf,
 98				    uint8_t x, uint8_t y)
 99{
100	return bo->paddr + surf->offset + VC4_TILE_BUFFER_SIZE *
101		(DIV_ROUND_UP(exec->args->width, 32) * y + x);
102}
103
104/*
105 * Emits a PACKET_TILE_COORDINATES if one isn't already pending.
106 *
107 * The tile coordinates packet triggers a pending load if there is one, are
108 * used for clipping during rendering, and determine where loads/stores happen
109 * relative to their base address.
110 */
111static void vc4_tile_coordinates(struct vc4_rcl_setup *setup,
112				 uint32_t x, uint32_t y)
113{
114	rcl_u8(setup, VC4_PACKET_TILE_COORDINATES);
115	rcl_u8(setup, x);
116	rcl_u8(setup, y);
117}
118
119static void emit_tile(struct vc4_exec_info *exec,
120		      struct vc4_rcl_setup *setup,
121		      uint8_t x, uint8_t y, bool first, bool last)
122{
123	struct drm_vc4_submit_cl *args = exec->args;
124	bool has_bin = args->bin_cl_size != 0;
125
126	/* Note that the load doesn't actually occur until the
127	 * tile coords packet is processed, and only one load
128	 * may be outstanding at a time.
129	 */
130	if (setup->color_read) {
131		if (args->color_read.flags &
132		    VC4_SUBMIT_RCL_SURFACE_READ_IS_FULL_RES) {
133			rcl_u8(setup, VC4_PACKET_LOAD_FULL_RES_TILE_BUFFER);
134			rcl_u32(setup,
135				vc4_full_res_offset(exec, setup->color_read,
136						    &args->color_read, x, y) |
137				VC4_LOADSTORE_FULL_RES_DISABLE_ZS);
138		} else {
139			rcl_u8(setup, VC4_PACKET_LOAD_TILE_BUFFER_GENERAL);
140			rcl_u16(setup, args->color_read.bits);
141			rcl_u32(setup, setup->color_read->paddr +
142				args->color_read.offset);
143		}
144	}
145
146	if (setup->zs_read) {
147		if (args->zs_read.flags &
148		    VC4_SUBMIT_RCL_SURFACE_READ_IS_FULL_RES) {
149			rcl_u8(setup, VC4_PACKET_LOAD_FULL_RES_TILE_BUFFER);
150			rcl_u32(setup,
151				vc4_full_res_offset(exec, setup->zs_read,
152						    &args->zs_read, x, y) |
153				VC4_LOADSTORE_FULL_RES_DISABLE_COLOR);
154		} else {
155			if (setup->color_read) {
156				/* Exec previous load. */
157				vc4_tile_coordinates(setup, x, y);
158				vc4_store_before_load(setup);
159			}
160
161			rcl_u8(setup, VC4_PACKET_LOAD_TILE_BUFFER_GENERAL);
162			rcl_u16(setup, args->zs_read.bits);
163			rcl_u32(setup, setup->zs_read->paddr +
164				args->zs_read.offset);
165		}
166	}
167
168	/* Clipping depends on tile coordinates having been
169	 * emitted, so we always need one here.
170	 */
171	vc4_tile_coordinates(setup, x, y);
172
173	/* Wait for the binner before jumping to the first
174	 * tile's lists.
175	 */
176	if (first && has_bin)
177		rcl_u8(setup, VC4_PACKET_WAIT_ON_SEMAPHORE);
178
179	if (has_bin) {
180		rcl_u8(setup, VC4_PACKET_BRANCH_TO_SUB_LIST);
181		rcl_u32(setup, (exec->tile_bo->paddr +
182				exec->tile_alloc_offset +
183				(y * exec->bin_tiles_x + x) * 32));
184	}
185
186	if (setup->msaa_color_write) {
187		bool last_tile_write = (!setup->msaa_zs_write &&
188					!setup->zs_write &&
189					!setup->color_write);
190		uint32_t bits = VC4_LOADSTORE_FULL_RES_DISABLE_ZS;
191
192		if (!last_tile_write)
193			bits |= VC4_LOADSTORE_FULL_RES_DISABLE_CLEAR_ALL;
194		else if (last)
195			bits |= VC4_LOADSTORE_FULL_RES_EOF;
196		rcl_u8(setup, VC4_PACKET_STORE_FULL_RES_TILE_BUFFER);
197		rcl_u32(setup,
198			vc4_full_res_offset(exec, setup->msaa_color_write,
199					    &args->msaa_color_write, x, y) |
200			bits);
201	}
202
203	if (setup->msaa_zs_write) {
204		bool last_tile_write = (!setup->zs_write &&
205					!setup->color_write);
206		uint32_t bits = VC4_LOADSTORE_FULL_RES_DISABLE_COLOR;
207
208		if (setup->msaa_color_write)
209			vc4_tile_coordinates(setup, x, y);
210		if (!last_tile_write)
211			bits |= VC4_LOADSTORE_FULL_RES_DISABLE_CLEAR_ALL;
212		else if (last)
213			bits |= VC4_LOADSTORE_FULL_RES_EOF;
214		rcl_u8(setup, VC4_PACKET_STORE_FULL_RES_TILE_BUFFER);
215		rcl_u32(setup,
216			vc4_full_res_offset(exec, setup->msaa_zs_write,
217					    &args->msaa_zs_write, x, y) |
218			bits);
219	}
220
221	if (setup->zs_write) {
222		bool last_tile_write = !setup->color_write;
223
224		if (setup->msaa_color_write || setup->msaa_zs_write)
225			vc4_tile_coordinates(setup, x, y);
226
227		rcl_u8(setup, VC4_PACKET_STORE_TILE_BUFFER_GENERAL);
228		rcl_u16(setup, args->zs_write.bits |
229			(last_tile_write ?
230			 0 : VC4_STORE_TILE_BUFFER_DISABLE_COLOR_CLEAR));
231		rcl_u32(setup,
232			(setup->zs_write->paddr + args->zs_write.offset) |
233			((last && last_tile_write) ?
234			 VC4_LOADSTORE_TILE_BUFFER_EOF : 0));
235	}
236
237	if (setup->color_write) {
238		if (setup->msaa_color_write || setup->msaa_zs_write ||
239		    setup->zs_write) {
240			vc4_tile_coordinates(setup, x, y);
241		}
242
243		if (last)
244			rcl_u8(setup, VC4_PACKET_STORE_MS_TILE_BUFFER_AND_EOF);
245		else
246			rcl_u8(setup, VC4_PACKET_STORE_MS_TILE_BUFFER);
247	}
248}
249
250static int vc4_create_rcl_bo(struct drm_device *dev, struct vc4_exec_info *exec,
251			     struct vc4_rcl_setup *setup)
252{
253	struct drm_vc4_submit_cl *args = exec->args;
254	bool has_bin = args->bin_cl_size != 0;
255	uint8_t min_x_tile = args->min_x_tile;
256	uint8_t min_y_tile = args->min_y_tile;
257	uint8_t max_x_tile = args->max_x_tile;
258	uint8_t max_y_tile = args->max_y_tile;
259	uint8_t xtiles = max_x_tile - min_x_tile + 1;
260	uint8_t ytiles = max_y_tile - min_y_tile + 1;
261	uint8_t x, y;
262	uint32_t size, loop_body_size;
263
264	size = VC4_PACKET_TILE_RENDERING_MODE_CONFIG_SIZE;
265	loop_body_size = VC4_PACKET_TILE_COORDINATES_SIZE;
266
267	if (args->flags & VC4_SUBMIT_CL_USE_CLEAR_COLOR) {
268		size += VC4_PACKET_CLEAR_COLORS_SIZE +
269			VC4_PACKET_TILE_COORDINATES_SIZE +
270			VC4_PACKET_STORE_TILE_BUFFER_GENERAL_SIZE;
271	}
272
273	if (setup->color_read) {
274		if (args->color_read.flags &
275		    VC4_SUBMIT_RCL_SURFACE_READ_IS_FULL_RES) {
276			loop_body_size += VC4_PACKET_LOAD_FULL_RES_TILE_BUFFER_SIZE;
277		} else {
278			loop_body_size += VC4_PACKET_LOAD_TILE_BUFFER_GENERAL_SIZE;
279		}
280	}
281	if (setup->zs_read) {
282		if (args->zs_read.flags &
283		    VC4_SUBMIT_RCL_SURFACE_READ_IS_FULL_RES) {
284			loop_body_size += VC4_PACKET_LOAD_FULL_RES_TILE_BUFFER_SIZE;
285		} else {
286			if (setup->color_read &&
287			    !(args->color_read.flags &
288			      VC4_SUBMIT_RCL_SURFACE_READ_IS_FULL_RES)) {
289				loop_body_size += VC4_PACKET_TILE_COORDINATES_SIZE;
290				loop_body_size += VC4_PACKET_STORE_TILE_BUFFER_GENERAL_SIZE;
291			}
292			loop_body_size += VC4_PACKET_LOAD_TILE_BUFFER_GENERAL_SIZE;
293		}
294	}
295
296	if (has_bin) {
297		size += VC4_PACKET_WAIT_ON_SEMAPHORE_SIZE;
298		loop_body_size += VC4_PACKET_BRANCH_TO_SUB_LIST_SIZE;
299	}
300
301	if (setup->msaa_color_write)
302		loop_body_size += VC4_PACKET_STORE_FULL_RES_TILE_BUFFER_SIZE;
303	if (setup->msaa_zs_write)
304		loop_body_size += VC4_PACKET_STORE_FULL_RES_TILE_BUFFER_SIZE;
305
306	if (setup->zs_write)
307		loop_body_size += VC4_PACKET_STORE_TILE_BUFFER_GENERAL_SIZE;
308	if (setup->color_write)
309		loop_body_size += VC4_PACKET_STORE_MS_TILE_BUFFER_SIZE;
310
311	/* We need a VC4_PACKET_TILE_COORDINATES in between each store. */
312	loop_body_size += VC4_PACKET_TILE_COORDINATES_SIZE *
313		((setup->msaa_color_write != NULL) +
314		 (setup->msaa_zs_write != NULL) +
315		 (setup->color_write != NULL) +
316		 (setup->zs_write != NULL) - 1);
317
318	size += xtiles * ytiles * loop_body_size;
319
320	setup->rcl = &vc4_bo_create(dev, size, true)->base;
321	if (IS_ERR(setup->rcl))
322		return PTR_ERR(setup->rcl);
323	list_add_tail(&to_vc4_bo(&setup->rcl->base)->unref_head,
324		      &exec->unref_list);
325
326	/* The tile buffer gets cleared when the previous tile is stored.  If
327	 * the clear values changed between frames, then the tile buffer has
328	 * stale clear values in it, so we have to do a store in None mode (no
329	 * writes) so that we trigger the tile buffer clear.
330	 */
331	if (args->flags & VC4_SUBMIT_CL_USE_CLEAR_COLOR) {
332		rcl_u8(setup, VC4_PACKET_CLEAR_COLORS);
333		rcl_u32(setup, args->clear_color[0]);
334		rcl_u32(setup, args->clear_color[1]);
335		rcl_u32(setup, args->clear_z);
336		rcl_u8(setup, args->clear_s);
337
338		vc4_tile_coordinates(setup, 0, 0);
339
340		rcl_u8(setup, VC4_PACKET_STORE_TILE_BUFFER_GENERAL);
341		rcl_u16(setup, VC4_LOADSTORE_TILE_BUFFER_NONE);
342		rcl_u32(setup, 0); /* no address, since we're in None mode */
343	}
344
345	rcl_u8(setup, VC4_PACKET_TILE_RENDERING_MODE_CONFIG);
346	rcl_u32(setup,
347		(setup->color_write ? (setup->color_write->paddr +
348				       args->color_write.offset) :
349		 0));
350	rcl_u16(setup, args->width);
351	rcl_u16(setup, args->height);
352	rcl_u16(setup, args->color_write.bits);
353
354	for (y = min_y_tile; y <= max_y_tile; y++) {
355		for (x = min_x_tile; x <= max_x_tile; x++) {
356			bool first = (x == min_x_tile && y == min_y_tile);
357			bool last = (x == max_x_tile && y == max_y_tile);
358
359			emit_tile(exec, setup, x, y, first, last);
360		}
361	}
362
363	BUG_ON(setup->next_offset != size);
364	exec->ct1ca = setup->rcl->paddr;
365	exec->ct1ea = setup->rcl->paddr + setup->next_offset;
366
367	return 0;
368}
369
370static int vc4_full_res_bounds_check(struct vc4_exec_info *exec,
371				     struct drm_gem_cma_object *obj,
372				     struct drm_vc4_submit_rcl_surface *surf)
373{
374	struct drm_vc4_submit_cl *args = exec->args;
375	u32 render_tiles_stride = DIV_ROUND_UP(exec->args->width, 32);
376
377	if (surf->offset > obj->base.size) {
378		DRM_ERROR("surface offset %d > BO size %zd\n",
379			  surf->offset, obj->base.size);
380		return -EINVAL;
381	}
382
383	if ((obj->base.size - surf->offset) / VC4_TILE_BUFFER_SIZE <
384	    render_tiles_stride * args->max_y_tile + args->max_x_tile) {
385		DRM_ERROR("MSAA tile %d, %d out of bounds "
386			  "(bo size %zd, offset %d).\n",
387			  args->max_x_tile, args->max_y_tile,
388			  obj->base.size,
389			  surf->offset);
390		return -EINVAL;
391	}
392
393	return 0;
394}
395
396static int vc4_rcl_msaa_surface_setup(struct vc4_exec_info *exec,
397				      struct drm_gem_cma_object **obj,
398				      struct drm_vc4_submit_rcl_surface *surf)
399{
400	if (surf->flags != 0 || surf->bits != 0) {
401		DRM_ERROR("MSAA surface had nonzero flags/bits\n");
402		return -EINVAL;
403	}
404
405	if (surf->hindex == ~0)
406		return 0;
407
408	*obj = vc4_use_bo(exec, surf->hindex);
409	if (!*obj)
410		return -EINVAL;
411
412	exec->rcl_write_bo[exec->rcl_write_bo_count++] = *obj;
413
414	if (surf->offset & 0xf) {
415		DRM_ERROR("MSAA write must be 16b aligned.\n");
416		return -EINVAL;
417	}
418
419	return vc4_full_res_bounds_check(exec, *obj, surf);
420}
421
422static int vc4_rcl_surface_setup(struct vc4_exec_info *exec,
423				 struct drm_gem_cma_object **obj,
424				 struct drm_vc4_submit_rcl_surface *surf,
425				 bool is_write)
426{
427	uint8_t tiling = VC4_GET_FIELD(surf->bits,
428				       VC4_LOADSTORE_TILE_BUFFER_TILING);
429	uint8_t buffer = VC4_GET_FIELD(surf->bits,
430				       VC4_LOADSTORE_TILE_BUFFER_BUFFER);
431	uint8_t format = VC4_GET_FIELD(surf->bits,
432				       VC4_LOADSTORE_TILE_BUFFER_FORMAT);
433	int cpp;
434	int ret;
435
436	if (surf->flags & ~VC4_SUBMIT_RCL_SURFACE_READ_IS_FULL_RES) {
437		DRM_ERROR("Extra flags set\n");
438		return -EINVAL;
439	}
440
441	if (surf->hindex == ~0)
442		return 0;
443
444	*obj = vc4_use_bo(exec, surf->hindex);
445	if (!*obj)
446		return -EINVAL;
447
448	if (is_write)
449		exec->rcl_write_bo[exec->rcl_write_bo_count++] = *obj;
450
451	if (surf->flags & VC4_SUBMIT_RCL_SURFACE_READ_IS_FULL_RES) {
452		if (surf == &exec->args->zs_write) {
453			DRM_ERROR("general zs write may not be a full-res.\n");
454			return -EINVAL;
455		}
456
457		if (surf->bits != 0) {
458			DRM_ERROR("load/store general bits set with "
459				  "full res load/store.\n");
460			return -EINVAL;
461		}
462
463		ret = vc4_full_res_bounds_check(exec, *obj, surf);
464		if (ret)
465			return ret;
466
467		return 0;
468	}
469
470	if (surf->bits & ~(VC4_LOADSTORE_TILE_BUFFER_TILING_MASK |
471			   VC4_LOADSTORE_TILE_BUFFER_BUFFER_MASK |
472			   VC4_LOADSTORE_TILE_BUFFER_FORMAT_MASK)) {
473		DRM_ERROR("Unknown bits in load/store: 0x%04x\n",
474			  surf->bits);
475		return -EINVAL;
476	}
477
478	if (tiling > VC4_TILING_FORMAT_LT) {
479		DRM_ERROR("Bad tiling format\n");
480		return -EINVAL;
481	}
482
483	if (buffer == VC4_LOADSTORE_TILE_BUFFER_ZS) {
484		if (format != 0) {
485			DRM_ERROR("No color format should be set for ZS\n");
486			return -EINVAL;
487		}
488		cpp = 4;
489	} else if (buffer == VC4_LOADSTORE_TILE_BUFFER_COLOR) {
490		switch (format) {
491		case VC4_LOADSTORE_TILE_BUFFER_BGR565:
492		case VC4_LOADSTORE_TILE_BUFFER_BGR565_DITHER:
493			cpp = 2;
494			break;
495		case VC4_LOADSTORE_TILE_BUFFER_RGBA8888:
496			cpp = 4;
497			break;
498		default:
499			DRM_ERROR("Bad tile buffer format\n");
500			return -EINVAL;
501		}
502	} else {
503		DRM_ERROR("Bad load/store buffer %d.\n", buffer);
504		return -EINVAL;
505	}
506
507	if (surf->offset & 0xf) {
508		DRM_ERROR("load/store buffer must be 16b aligned.\n");
509		return -EINVAL;
510	}
511
512	if (!vc4_check_tex_size(exec, *obj, surf->offset, tiling,
513				exec->args->width, exec->args->height, cpp)) {
514		return -EINVAL;
515	}
516
517	return 0;
518}
519
520static int
521vc4_rcl_render_config_surface_setup(struct vc4_exec_info *exec,
522				    struct vc4_rcl_setup *setup,
523				    struct drm_gem_cma_object **obj,
524				    struct drm_vc4_submit_rcl_surface *surf)
525{
526	uint8_t tiling = VC4_GET_FIELD(surf->bits,
527				       VC4_RENDER_CONFIG_MEMORY_FORMAT);
528	uint8_t format = VC4_GET_FIELD(surf->bits,
529				       VC4_RENDER_CONFIG_FORMAT);
530	int cpp;
531
532	if (surf->flags != 0) {
533		DRM_ERROR("No flags supported on render config.\n");
534		return -EINVAL;
535	}
536
537	if (surf->bits & ~(VC4_RENDER_CONFIG_MEMORY_FORMAT_MASK |
538			   VC4_RENDER_CONFIG_FORMAT_MASK |
539			   VC4_RENDER_CONFIG_MS_MODE_4X |
540			   VC4_RENDER_CONFIG_DECIMATE_MODE_4X)) {
541		DRM_ERROR("Unknown bits in render config: 0x%04x\n",
542			  surf->bits);
543		return -EINVAL;
544	}
545
546	if (surf->hindex == ~0)
547		return 0;
548
549	*obj = vc4_use_bo(exec, surf->hindex);
550	if (!*obj)
551		return -EINVAL;
552
553	exec->rcl_write_bo[exec->rcl_write_bo_count++] = *obj;
554
555	if (tiling > VC4_TILING_FORMAT_LT) {
556		DRM_ERROR("Bad tiling format\n");
557		return -EINVAL;
558	}
559
560	switch (format) {
561	case VC4_RENDER_CONFIG_FORMAT_BGR565_DITHERED:
562	case VC4_RENDER_CONFIG_FORMAT_BGR565:
563		cpp = 2;
564		break;
565	case VC4_RENDER_CONFIG_FORMAT_RGBA8888:
566		cpp = 4;
567		break;
568	default:
569		DRM_ERROR("Bad tile buffer format\n");
570		return -EINVAL;
571	}
572
573	if (!vc4_check_tex_size(exec, *obj, surf->offset, tiling,
574				exec->args->width, exec->args->height, cpp)) {
575		return -EINVAL;
576	}
577
578	return 0;
579}
580
581int vc4_get_rcl(struct drm_device *dev, struct vc4_exec_info *exec)
582{
583	struct vc4_rcl_setup setup = {0};
584	struct drm_vc4_submit_cl *args = exec->args;
585	bool has_bin = args->bin_cl_size != 0;
586	int ret;
587
588	if (args->min_x_tile > args->max_x_tile ||
589	    args->min_y_tile > args->max_y_tile) {
590		DRM_ERROR("Bad render tile set (%d,%d)-(%d,%d)\n",
591			  args->min_x_tile, args->min_y_tile,
592			  args->max_x_tile, args->max_y_tile);
593		return -EINVAL;
594	}
595
596	if (has_bin &&
597	    (args->max_x_tile > exec->bin_tiles_x ||
598	     args->max_y_tile > exec->bin_tiles_y)) {
599		DRM_ERROR("Render tiles (%d,%d) outside of bin config "
600			  "(%d,%d)\n",
601			  args->max_x_tile, args->max_y_tile,
602			  exec->bin_tiles_x, exec->bin_tiles_y);
603		return -EINVAL;
604	}
605
606	ret = vc4_rcl_render_config_surface_setup(exec, &setup,
607						  &setup.color_write,
608						  &args->color_write);
609	if (ret)
610		return ret;
611
612	ret = vc4_rcl_surface_setup(exec, &setup.color_read, &args->color_read,
613				    false);
614	if (ret)
615		return ret;
616
617	ret = vc4_rcl_surface_setup(exec, &setup.zs_read, &args->zs_read,
618				    false);
619	if (ret)
620		return ret;
621
622	ret = vc4_rcl_surface_setup(exec, &setup.zs_write, &args->zs_write,
623				    true);
624	if (ret)
625		return ret;
626
627	ret = vc4_rcl_msaa_surface_setup(exec, &setup.msaa_color_write,
628					 &args->msaa_color_write);
629	if (ret)
630		return ret;
631
632	ret = vc4_rcl_msaa_surface_setup(exec, &setup.msaa_zs_write,
633					 &args->msaa_zs_write);
634	if (ret)
635		return ret;
636
637	/* We shouldn't even have the job submitted to us if there's no
638	 * surface to write out.
639	 */
640	if (!setup.color_write && !setup.zs_write &&
641	    !setup.msaa_color_write && !setup.msaa_zs_write) {
642		DRM_ERROR("RCL requires color or Z/S write\n");
643		return -EINVAL;
644	}
645
646	return vc4_create_rcl_bo(dev, exec, &setup);
647}