1 /*
2 * Copyright (c) 2012-2013 Etnaviv Project
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, sub license,
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
12 * next paragraph) shall be included in all copies or substantial portions
13 * of the 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 NON-INFRINGEMENT. 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
21 * DEALINGS IN THE SOFTWARE.
22 *
23 * Authors:
24 * Wladimir J. van der Laan <laanwj@gmail.com>
25 */
26
27 #include "etnaviv_surface.h"
28 #include "etnaviv_screen.h"
29
30 #include "etnaviv_clear_blit.h"
31 #include "etnaviv_context.h"
32 #include "etnaviv_translate.h"
33 #include "pipe/p_defines.h"
34 #include "pipe/p_state.h"
35 #include "util/u_inlines.h"
36 #include "util/u_memory.h"
37
38 #include "hw/common.xml.h"
39
40 static struct pipe_surface *
etna_create_surface(struct pipe_context * pctx,struct pipe_resource * prsc,const struct pipe_surface * templat)41 etna_create_surface(struct pipe_context *pctx, struct pipe_resource *prsc,
42 const struct pipe_surface *templat)
43 {
44 struct etna_context *ctx = etna_context(pctx);
45 struct etna_resource *rsc = etna_resource(prsc);
46 struct etna_surface *surf = CALLOC_STRUCT(etna_surface);
47
48 if (!surf)
49 return NULL;
50
51 assert(templat->u.tex.first_layer == templat->u.tex.last_layer);
52 unsigned layer = templat->u.tex.first_layer;
53 unsigned level = templat->u.tex.level;
54 assert(layer < rsc->base.array_size);
55
56 surf->base.context = pctx;
57
58 pipe_reference_init(&surf->base.reference, 1);
59 pipe_resource_reference(&surf->base.texture, &rsc->base);
60
61 /* Allocate a TS for the resource if there isn't one yet,
62 * and it is allowed by the hw (width is a multiple of 16).
63 * Avoid doing this for GPUs with MC1.0, as kernel sources
64 * indicate the tile status module bypasses the memory
65 * offset and MMU. */
66
67 if (VIV_FEATURE(ctx->screen, chipFeatures, FAST_CLEAR) &&
68 VIV_FEATURE(ctx->screen, chipMinorFeatures0, MC20) &&
69 !rsc->ts_bo &&
70 (rsc->levels[level].padded_width & ETNA_RS_WIDTH_MASK) == 0 &&
71 (rsc->levels[level].padded_height & ETNA_RS_HEIGHT_MASK) == 0) {
72 etna_screen_resource_alloc_ts(pctx->screen, rsc);
73 }
74
75 surf->base.texture = &rsc->base;
76 surf->base.format = rsc->base.format;
77 surf->base.width = rsc->levels[level].width;
78 surf->base.height = rsc->levels[level].height;
79 surf->base.writable = templat->writable; /* what is this for anyway */
80 surf->base.u = templat->u;
81
82 surf->level = &rsc->levels[level]; /* Keep pointer to actual level to set
83 * clear color on underlying resource
84 * instead of surface */
85 surf->surf = rsc->levels [level]; /* Make copy of level to narrow down
86 * address to layer */
87
88 /* XXX we don't really need a copy but it's convenient */
89 surf->surf.offset += layer * surf->surf.layer_stride;
90
91 struct etna_resource_level *lev = &rsc->levels[level];
92
93 /* Setup template relocations for this surface */
94 for (unsigned pipe = 0; pipe < ctx->specs.pixel_pipes; ++pipe) {
95 surf->reloc[pipe].bo = rsc->bo;
96 surf->reloc[pipe].offset = surf->surf.offset;
97 surf->reloc[pipe].flags = 0;
98 }
99
100 /* In single buffer mode, both pixel pipes must point to the same address,
101 * for multi-tiled surfaces on the other hand the second pipe is expected to
102 * point halfway the image vertically.
103 */
104 if (rsc->layout & ETNA_LAYOUT_BIT_MULTI)
105 surf->reloc[1].offset = surf->surf.offset + lev->stride * lev->padded_height / 2;
106
107 if (surf->surf.ts_size) {
108 unsigned int layer_offset = layer * surf->surf.ts_layer_stride;
109 assert(layer_offset < surf->surf.ts_size);
110
111 surf->surf.ts_offset += layer_offset;
112 surf->surf.ts_size -= layer_offset;
113 surf->surf.ts_valid = false;
114
115 surf->ts_reloc.bo = rsc->ts_bo;
116 surf->ts_reloc.offset = surf->surf.ts_offset;
117 surf->ts_reloc.flags = 0;
118
119 if (!ctx->specs.use_blt) {
120 /* This (ab)uses the RS as a plain buffer memset().
121 * Currently uses a fixed row size of 64 bytes. Some benchmarking with
122 * different sizes may be in order. */
123 struct etna_bo *ts_bo = etna_resource(surf->base.texture)->ts_bo;
124 etna_compile_rs_state(ctx, &surf->clear_command, &(struct rs_state) {
125 .source_format = RS_FORMAT_A8R8G8B8,
126 .dest_format = RS_FORMAT_A8R8G8B8,
127 .dest = ts_bo,
128 .dest_offset = surf->surf.ts_offset,
129 .dest_stride = 0x40,
130 .dest_tiling = ETNA_LAYOUT_TILED,
131 .dither = {0xffffffff, 0xffffffff},
132 .width = 16,
133 .height = etna_align_up(surf->surf.ts_size / 0x40, 4),
134 .clear_value = {ctx->specs.ts_clear_value},
135 .clear_mode = VIVS_RS_CLEAR_CONTROL_MODE_ENABLED1,
136 .clear_bits = 0xffff
137 });
138 }
139 } else {
140 if (!ctx->specs.use_blt)
141 etna_rs_gen_clear_surface(ctx, surf, surf->level->clear_value);
142 }
143
144 return &surf->base;
145 }
146
147 static void
etna_surface_destroy(struct pipe_context * pctx,struct pipe_surface * psurf)148 etna_surface_destroy(struct pipe_context *pctx, struct pipe_surface *psurf)
149 {
150 pipe_resource_reference(&psurf->texture, NULL);
151 FREE(psurf);
152 }
153
154 void
etna_surface_init(struct pipe_context * pctx)155 etna_surface_init(struct pipe_context *pctx)
156 {
157 pctx->create_surface = etna_create_surface;
158 pctx->surface_destroy = etna_surface_destroy;
159 }
160