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