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      1 /*
      2  * Copyright (C) 2016 Rob Clark <robclark (at) freedesktop.org>
      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 FROM,
     20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
     21  * SOFTWARE.
     22  *
     23  * Authors:
     24  *    Rob Clark <robclark (at) freedesktop.org>
     25  */
     26 
     27 #ifndef FD5_DRAW_H_
     28 #define FD5_DRAW_H_
     29 
     30 #include "pipe/p_context.h"
     31 
     32 #include "freedreno_draw.h"
     33 
     34 /* some bits in common w/ a4xx: */
     35 #include "a4xx/fd4_draw.h"
     36 
     37 void fd5_draw_init(struct pipe_context *pctx);
     38 
     39 static inline void
     40 fd5_draw(struct fd_batch *batch, struct fd_ringbuffer *ring,
     41 		enum pc_di_primtype primtype,
     42 		enum pc_di_vis_cull_mode vismode,
     43 		enum pc_di_src_sel src_sel, uint32_t count,
     44 		uint32_t instances, enum a4xx_index_size idx_type,
     45 		uint32_t idx_size, uint32_t idx_offset,
     46 		struct pipe_resource *idx_buffer)
     47 {
     48 	/* for debug after a lock up, write a unique counter value
     49 	 * to scratch7 for each draw, to make it easier to match up
     50 	 * register dumps to cmdstream.  The combination of IB
     51 	 * (scratch6) and DRAW is enough to "triangulate" the
     52 	 * particular draw that caused lockup.
     53 	 */
     54 	emit_marker5(ring, 7);
     55 
     56 	OUT_PKT7(ring, CP_DRAW_INDX_OFFSET, idx_buffer ? 7 : 3);
     57 	if (vismode == USE_VISIBILITY) {
     58 		/* leave vis mode blank for now, it will be patched up when
     59 		 * we know if we are binning or not
     60 		 */
     61 		OUT_RINGP(ring, DRAW4(primtype, src_sel, idx_type, 0),
     62 				&batch->draw_patches);
     63 	} else {
     64 		OUT_RING(ring, DRAW4(primtype, src_sel, idx_type, vismode));
     65 	}
     66 	OUT_RING(ring, instances);         /* NumInstances */
     67 	OUT_RING(ring, count);             /* NumIndices */
     68 	if (idx_buffer) {
     69 		OUT_RING(ring, 0x0);           /* XXX */
     70 		OUT_RELOC(ring, fd_resource(idx_buffer)->bo, idx_offset, 0, 0);
     71 		OUT_RING (ring, idx_size);
     72 	}
     73 
     74 	emit_marker5(ring, 7);
     75 
     76 	fd_reset_wfi(batch);
     77 }
     78 
     79 static inline void
     80 fd5_draw_emit(struct fd_batch *batch, struct fd_ringbuffer *ring,
     81 		enum pc_di_primtype primtype,
     82 		enum pc_di_vis_cull_mode vismode,
     83 		const struct pipe_draw_info *info)
     84 {
     85 	struct pipe_resource *idx_buffer = NULL;
     86 	enum a4xx_index_size idx_type;
     87 	enum pc_di_src_sel src_sel;
     88 	uint32_t idx_size, idx_offset;
     89 
     90 	if (info->indexed) {
     91 		struct pipe_index_buffer *idx = &batch->ctx->indexbuf;
     92 
     93 		assert(!idx->user_buffer);
     94 
     95 		idx_buffer = idx->buffer;
     96 		idx_type = fd4_size2indextype(idx->index_size);
     97 		idx_size = idx->index_size * info->count;
     98 		idx_offset = idx->offset + (info->start * idx->index_size);
     99 		src_sel = DI_SRC_SEL_DMA;
    100 	} else {
    101 		idx_buffer = NULL;
    102 		idx_type = INDEX4_SIZE_32_BIT;
    103 		idx_size = 0;
    104 		idx_offset = 0;
    105 		src_sel = DI_SRC_SEL_AUTO_INDEX;
    106 	}
    107 
    108 	fd5_draw(batch, ring, primtype, vismode, src_sel,
    109 			info->count, info->instance_count,
    110 			idx_type, idx_size, idx_offset, idx_buffer);
    111 }
    112 
    113 #endif /* FD5_DRAW_H_ */
    114