src/gallium/drivers/etnaviv/etnaviv_surface.c

   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 #include "drm-uapi/drm_fourcc.h"
  41
  42 static struct etna_resource *
  43 etna_render_handle_incompatible(struct pipe_context *pctx, struct pipe_resource *prsc)
  44 {
  45    struct etna_context *ctx = etna_context(pctx);
  46    struct etna_screen *screen = ctx->screen;
  47    struct etna_resource *res = etna_resource(prsc);
  48    bool need_multitiled = screen->specs.pixel_pipes > 1 && !screen->specs.single_buffer;
  49    bool want_supertiled = screen->specs.can_supertile;
  50
  51    /* Resource is compatible if it is tiled and has multi tiling when required
  52     * TODO: LINEAR_PE feature means render to linear is possible ?
  53     */
  54    if (res->layout != ETNA_LAYOUT_LINEAR &&
  55        (!need_multitiled || (res->layout & ETNA_LAYOUT_BIT_MULTI)))
  56       return res;
  57
  58    if (!res->render) {
  59       struct pipe_resource templat = *prsc;
  60       unsigned layout = ETNA_LAYOUT_TILED;
  61       if (need_multitiled)
  62          layout |= ETNA_LAYOUT_BIT_MULTI;
  63       if (want_supertiled)
  64          layout |= ETNA_LAYOUT_BIT_SUPER;
  65
  66       templat.bind &= (PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_RENDER_TARGET |
  67                         PIPE_BIND_BLENDABLE);
  68       res->render =
  69          etna_resource_alloc(pctx->screen, layout,
  70                              DRM_FORMAT_MOD_LINEAR, &templat);
  71       assert(res->render);
  72    }
  73    return etna_resource(res->render);
  74 }
  75
  76 static struct pipe_surface *
  77 etna_create_surface(struct pipe_context *pctx, struct pipe_resource *prsc,
  78                     const struct pipe_surface *templat)
  79 {
  80    struct etna_context *ctx = etna_context(pctx);
  81    struct etna_screen *screen = ctx->screen;
  82    struct etna_resource *rsc = etna_render_handle_incompatible(pctx, prsc);
  83    struct etna_surface *surf = CALLOC_STRUCT(etna_surface);
  84
  85    if (!surf)
  86       return NULL;
  87
  88    assert(templat->u.tex.first_layer == templat->u.tex.last_layer);
  89    unsigned layer = templat->u.tex.first_layer;
  90    unsigned level = templat->u.tex.level;
  91    assert(layer < rsc->base.array_size);
  92
  93    surf->base.context = pctx;
  94
  95    pipe_reference_init(&surf->base.reference, 1);
  96    pipe_resource_reference(&surf->base.texture, &rsc->base);
  97    pipe_resource_reference(&surf->prsc, prsc);
  98
  99    /* Allocate a TS for the resource if there isn't one yet,
 100     * and it is allowed by the hw (width is a multiple of 16).
 101     * Avoid doing this for GPUs with MC1.0, as kernel sources
 102     * indicate the tile status module bypasses the memory
 103     * offset and MMU. */
 104
 105    if (VIV_FEATURE(screen, chipFeatures, FAST_CLEAR) &&
 106        VIV_FEATURE(screen, chipMinorFeatures0, MC20) &&
 107        !rsc->ts_bo &&
 108        /* needs to be RS/BLT compatible for transfer_map/unmap */
 109        (rsc->levels[level].padded_width & ETNA_RS_WIDTH_MASK) == 0 &&
 110        (rsc->levels[level].padded_height & ETNA_RS_HEIGHT_MASK) == 0 &&
 111        etna_resource_hw_tileable(screen->specs.use_blt, prsc)) {
 112       etna_screen_resource_alloc_ts(pctx->screen, rsc);
 113    }
 114
 115    surf->base.texture = &rsc->base;
 116    surf->base.format = templat->format;
 117    surf->base.width = rsc->levels[level].width;
 118    surf->base.height = rsc->levels[level].height;
 119    surf->base.writable = templat->writable; /* what is this for anyway */
 120    surf->base.u = templat->u;
 121
 122    surf->level = &rsc->levels[level]; /* Keep pointer to actual level to set
 123                                        * clear color on underlying resource
 124                                        * instead of surface */
 125    surf->surf = rsc->levels [level];  /* Make copy of level to narrow down
 126                                        * address to layer */
 127
 128    /* XXX we don't really need a copy but it's convenient */
 129    surf->surf.offset += layer * surf->surf.layer_stride;
 130
 131    struct etna_resource_level *lev = &rsc->levels[level];
 132
 133    /* Setup template relocations for this surface */
 134    for (unsigned pipe = 0; pipe < screen->specs.pixel_pipes; ++pipe) {
 135       surf->reloc[pipe].bo = rsc->bo;
 136       surf->reloc[pipe].offset = surf->surf.offset;
 137       surf->reloc[pipe].flags = 0;
 138    }
 139
 140    /* In single buffer mode, both pixel pipes must point to the same address,
 141     * for multi-tiled surfaces on the other hand the second pipe is expected to
 142     * point halfway the image vertically.
 143     */
 144    if (rsc->layout & ETNA_LAYOUT_BIT_MULTI)
 145       surf->reloc[1].offset = surf->surf.offset + lev->stride * lev->padded_height / 2;
 146
 147    if (surf->surf.ts_size) {
 148       unsigned int layer_offset = layer * surf->surf.ts_layer_stride;
 149       assert(layer_offset < surf->surf.ts_size);
 150
 151       surf->surf.ts_offset += layer_offset;
 152       surf->surf.ts_size -= layer_offset;
 153       surf->surf.ts_valid = false;
 154
 155       surf->ts_reloc.bo = rsc->ts_bo;
 156       surf->ts_reloc.offset = surf->surf.ts_offset;
 157       surf->ts_reloc.flags = 0;
 158
 159       if (!screen->specs.use_blt) {
 160          /* This (ab)uses the RS as a plain buffer memset().
 161           * Currently uses a fixed row size of 64 bytes. Some benchmarking with
 162           * different sizes may be in order. */
 163          struct etna_bo *ts_bo = etna_resource(surf->base.texture)->ts_bo;
 164          etna_compile_rs_state(ctx, &surf->clear_command, &(struct rs_state) {
 165             .source_format = RS_FORMAT_A8R8G8B8,
 166             .dest_format = RS_FORMAT_A8R8G8B8,
 167             .dest = ts_bo,
 168             .dest_offset = surf->surf.ts_offset,
 169             .dest_stride = 0x40,
 170             .dest_tiling = ETNA_LAYOUT_TILED,
 171             .dither = {0xffffffff, 0xffffffff},
 172             .width = 16,
 173             .height = etna_align_up(surf->surf.ts_size / 0x40, 4),
 174             .clear_value = {screen->specs.ts_clear_value},
 175             .clear_mode = VIVS_RS_CLEAR_CONTROL_MODE_ENABLED1,
 176             .clear_bits = 0xffff
 177          });
 178       }
 179    } else {
 180       if (!screen->specs.use_blt)
 181          etna_rs_gen_clear_surface(ctx, surf, surf->level->clear_value);
 182    }
 183
 184    return &surf->base;
 185 }
 186
 187 static void
 188 etna_surface_destroy(struct pipe_context *pctx, struct pipe_surface *psurf)
 189 {
 190    pipe_resource_reference(&psurf->texture, NULL);
 191    pipe_resource_reference(&etna_surface(psurf)->prsc, NULL);
 192    FREE(psurf);
 193 }
 194
 195 void
 196 etna_surface_init(struct pipe_context *pctx)
 197 {
 198    pctx->create_surface = etna_create_surface;
 199    pctx->surface_destroy = etna_surface_destroy;
 200 }