mesa/src/gallium/winsys/amdgpu/drm/amdgpu_surface.c

/*
 * Copyright © 2011 Red Hat All Rights Reserved.
 * Copyright © 2014 Advanced Micro Devices, Inc.
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sub license, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS, AUTHORS
 * AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
 * USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 */

/* Contact:
 *     Marek Olšák <maraeo@gmail.com>
 */

#include "amdgpu_winsys.h"
#include "util/u_format.h"

#ifndef CIASICIDGFXENGINE_SOUTHERNISLAND
#define CIASICIDGFXENGINE_SOUTHERNISLAND 0x0000000A
#endif

#ifndef CIASICIDGFXENGINE_ARCTICISLAND
#define CIASICIDGFXENGINE_ARCTICISLAND 0x0000000D
#endif

static int amdgpu_surface_sanity(const struct pipe_resource *tex)
{
   /* all dimension must be at least 1 ! */
   if (!tex->width0 || !tex->height0 || !tex->depth0 ||
       !tex->array_size)
      return -EINVAL;

   switch (tex->nr_samples) {
   case 0:
   case 1:
   case 2:
   case 4:
   case 8:
      break;
   default:
      return -EINVAL;
   }

   switch (tex->target) {
   case PIPE_TEXTURE_1D:
      if (tex->height0 > 1)
         return -EINVAL;
      /* fall through */
   case PIPE_TEXTURE_2D:
   case PIPE_TEXTURE_RECT:
      if (tex->depth0 > 1 || tex->array_size > 1)
         return -EINVAL;
      break;
   case PIPE_TEXTURE_3D:
      if (tex->array_size > 1)
         return -EINVAL;
      break;
   case PIPE_TEXTURE_1D_ARRAY:
      if (tex->height0 > 1)
         return -EINVAL;
      /* fall through */
   case PIPE_TEXTURE_CUBE:
   case PIPE_TEXTURE_2D_ARRAY:
   case PIPE_TEXTURE_CUBE_ARRAY:
      if (tex->depth0 > 1)
         return -EINVAL;
      break;
   default:
      return -EINVAL;
   }
   return 0;
}

static void *ADDR_API allocSysMem(const ADDR_ALLOCSYSMEM_INPUT * pInput)
{
   return malloc(pInput->sizeInBytes);
}

static ADDR_E_RETURNCODE ADDR_API freeSysMem(const ADDR_FREESYSMEM_INPUT * pInput)
{
   free(pInput->pVirtAddr);
   return ADDR_OK;
}

ADDR_HANDLE amdgpu_addr_create(struct amdgpu_winsys *ws)
{
   ADDR_CREATE_INPUT addrCreateInput = {0};
   ADDR_CREATE_OUTPUT addrCreateOutput = {0};
   ADDR_REGISTER_VALUE regValue = {0};
   ADDR_CREATE_FLAGS createFlags = {{0}};
   ADDR_E_RETURNCODE addrRet;

   addrCreateInput.size = sizeof(ADDR_CREATE_INPUT);
   addrCreateOutput.size = sizeof(ADDR_CREATE_OUTPUT);

   regValue.gbAddrConfig = ws->amdinfo.gb_addr_cfg;
   createFlags.value = 0;

   if (ws->info.chip_class >= GFX9) {
      addrCreateInput.chipEngine = CIASICIDGFXENGINE_ARCTICISLAND;
      regValue.blockVarSizeLog2 = 0;
   } else {
      regValue.noOfBanks = ws->amdinfo.mc_arb_ramcfg & 0x3;
      regValue.noOfRanks = (ws->amdinfo.mc_arb_ramcfg & 0x4) >> 2;

      regValue.backendDisables = ws->amdinfo.enabled_rb_pipes_mask;
      regValue.pTileConfig = ws->amdinfo.gb_tile_mode;
      regValue.noOfEntries = ARRAY_SIZE(ws->amdinfo.gb_tile_mode);
      if (ws->info.chip_class == SI) {
         regValue.pMacroTileConfig = NULL;
         regValue.noOfMacroEntries = 0;
      } else {
         regValue.pMacroTileConfig = ws->amdinfo.gb_macro_tile_mode;
         regValue.noOfMacroEntries = ARRAY_SIZE(ws->amdinfo.gb_macro_tile_mode);
      }

      createFlags.useTileIndex = 1;
      createFlags.useHtileSliceAlign = 1;

      addrCreateInput.chipEngine = CIASICIDGFXENGINE_SOUTHERNISLAND;
      addrCreateInput.chipFamily = ws->family;
      addrCreateInput.chipRevision = ws->rev_id;
   }

   addrCreateInput.chipFamily = ws->family;
   addrCreateInput.chipRevision = ws->rev_id;
   addrCreateInput.callbacks.allocSysMem = allocSysMem;
   addrCreateInput.callbacks.freeSysMem = freeSysMem;
   addrCreateInput.callbacks.debugPrint = 0;
   addrCreateInput.createFlags = createFlags;
   addrCreateInput.regValue = regValue;

   addrRet = AddrCreate(&addrCreateInput, &addrCreateOutput);
   if (addrRet != ADDR_OK)
      return NULL;

   return addrCreateOutput.hLib;
}

static int gfx6_compute_level(struct amdgpu_winsys *ws,
                              const struct pipe_resource *tex,
                              struct radeon_surf *surf, bool is_stencil,
                              unsigned level, bool compressed,
                              ADDR_COMPUTE_SURFACE_INFO_INPUT *AddrSurfInfoIn,
                              ADDR_COMPUTE_SURFACE_INFO_OUTPUT *AddrSurfInfoOut,
                              ADDR_COMPUTE_DCCINFO_INPUT *AddrDccIn,
                              ADDR_COMPUTE_DCCINFO_OUTPUT *AddrDccOut,
                              ADDR_COMPUTE_HTILE_INFO_INPUT *AddrHtileIn,
                              ADDR_COMPUTE_HTILE_INFO_OUTPUT *AddrHtileOut)
{
   struct legacy_surf_level *surf_level;
   ADDR_E_RETURNCODE ret;

   AddrSurfInfoIn->mipLevel = level;
   AddrSurfInfoIn->width = u_minify(tex->width0, level);
   AddrSurfInfoIn->height = u_minify(tex->height0, level);

   if (tex->target == PIPE_TEXTURE_3D)
      AddrSurfInfoIn->numSlices = u_minify(tex->depth0, level);
   else if (tex->target == PIPE_TEXTURE_CUBE)
      AddrSurfInfoIn->numSlices = 6;
   else
      AddrSurfInfoIn->numSlices = tex->array_size;

   if (level > 0) {
      /* Set the base level pitch. This is needed for calculation
       * of non-zero levels. */
      if (is_stencil)
         AddrSurfInfoIn->basePitch = surf->u.legacy.stencil_level[0].nblk_x;
      else
         AddrSurfInfoIn->basePitch = surf->u.legacy.level[0].nblk_x;

      /* Convert blocks to pixels for compressed formats. */
      if (compressed)
         AddrSurfInfoIn->basePitch *= surf->blk_w;
   }

   ret = AddrComputeSurfaceInfo(ws->addrlib,
                                AddrSurfInfoIn,
                                AddrSurfInfoOut);
   if (ret != ADDR_OK) {
      return ret;
   }

   surf_level = is_stencil ? &surf->u.legacy.stencil_level[level] : &surf->u.legacy.level[level];
   surf_level->offset = align64(surf->surf_size, AddrSurfInfoOut->baseAlign);
   surf_level->slice_size = AddrSurfInfoOut->sliceSize;
   surf_level->nblk_x = AddrSurfInfoOut->pitch;
   surf_level->nblk_y = AddrSurfInfoOut->height;

   switch (AddrSurfInfoOut->tileMode) {
   case ADDR_TM_LINEAR_ALIGNED:
      surf_level->mode = RADEON_SURF_MODE_LINEAR_ALIGNED;
      break;
   case ADDR_TM_1D_TILED_THIN1:
      surf_level->mode = RADEON_SURF_MODE_1D;
      break;
   case ADDR_TM_2D_TILED_THIN1:
      surf_level->mode = RADEON_SURF_MODE_2D;
      break;
   default:
      assert(0);
   }

   if (is_stencil)
      surf->u.legacy.stencil_tiling_index[level] = AddrSurfInfoOut->tileIndex;
   else
      surf->u.legacy.tiling_index[level] = AddrSurfInfoOut->tileIndex;

   surf->surf_size = surf_level->offset + AddrSurfInfoOut->surfSize;

   /* Clear DCC fields at the beginning. */
   surf_level->dcc_offset = 0;

   /* The previous level's flag tells us if we can use DCC for this level. */
   if (AddrSurfInfoIn->flags.dccCompatible &&
       (level == 0 || AddrDccOut->subLvlCompressible)) {
      AddrDccIn->colorSurfSize = AddrSurfInfoOut->surfSize;
      AddrDccIn->tileMode = AddrSurfInfoOut->tileMode;
      AddrDccIn->tileInfo = *AddrSurfInfoOut->pTileInfo;
      AddrDccIn->tileIndex = AddrSurfInfoOut->tileIndex;
      AddrDccIn->macroModeIndex = AddrSurfInfoOut->macroModeIndex;

      ret = AddrComputeDccInfo(ws->addrlib,
                               AddrDccIn,
                               AddrDccOut);

      if (ret == ADDR_OK) {
         surf_level->dcc_offset = surf->dcc_size;
         surf_level->dcc_fast_clear_size = AddrDccOut->dccFastClearSize;
         surf->num_dcc_levels = level + 1;
         surf->dcc_size = surf_level->dcc_offset + AddrDccOut->dccRamSize;
         surf->dcc_alignment = MAX2(surf->dcc_alignment, AddrDccOut->dccRamBaseAlign);
      }
   }

   /* TC-compatible HTILE. */
   if (!is_stencil &&
       AddrSurfInfoIn->flags.depth &&
       AddrSurfInfoIn->flags.tcCompatible &&
       surf_level->mode == RADEON_SURF_MODE_2D &&
       level == 0) {
      AddrHtileIn->flags.tcCompatible = 1;
      AddrHtileIn->pitch = AddrSurfInfoOut->pitch;
      AddrHtileIn->height = AddrSurfInfoOut->height;
      AddrHtileIn->numSlices = AddrSurfInfoOut->depth;
      AddrHtileIn->blockWidth = ADDR_HTILE_BLOCKSIZE_8;
      AddrHtileIn->blockHeight = ADDR_HTILE_BLOCKSIZE_8;
      AddrHtileIn->pTileInfo = AddrSurfInfoOut->pTileInfo;
      AddrHtileIn->tileIndex = AddrSurfInfoOut->tileIndex;
      AddrHtileIn->macroModeIndex = AddrSurfInfoOut->macroModeIndex;

      ret = AddrComputeHtileInfo(ws->addrlib,
                                 AddrHtileIn,
                                 AddrHtileOut);

      if (ret == ADDR_OK) {
         surf->htile_size = AddrHtileOut->htileBytes;
         surf->htile_alignment = AddrHtileOut->baseAlign;
      }
   }

   return 0;
}

#define   G_009910_MICRO_TILE_MODE(x)          (((x) >> 0) & 0x03)
#define   G_009910_MICRO_TILE_MODE_NEW(x)      (((x) >> 22) & 0x07)

static void gfx6_set_micro_tile_mode(struct radeon_surf *surf,
                                     struct radeon_info *info)
{
   uint32_t tile_mode = info->si_tile_mode_array[surf->u.legacy.tiling_index[0]];

   if (info->chip_class >= CIK)
      surf->micro_tile_mode = G_009910_MICRO_TILE_MODE_NEW(tile_mode);
   else
      surf->micro_tile_mode = G_009910_MICRO_TILE_MODE(tile_mode);
}

static unsigned cik_get_macro_tile_index(struct radeon_surf *surf)
{
	unsigned index, tileb;

	tileb = 8 * 8 * surf->bpe;
	tileb = MIN2(surf->u.legacy.tile_split, tileb);

	for (index = 0; tileb > 64; index++)
		tileb >>= 1;

	assert(index < 16);
	return index;
}

static int gfx6_surface_init(struct radeon_winsys *rws,
                             const struct pipe_resource *tex,
                             unsigned flags, unsigned bpe,
                             enum radeon_surf_mode mode,
                             struct radeon_surf *surf)
{
   struct amdgpu_winsys *ws = (struct amdgpu_winsys*)rws;
   unsigned level;
   bool compressed;
   ADDR_COMPUTE_SURFACE_INFO_INPUT AddrSurfInfoIn = {0};
   ADDR_COMPUTE_SURFACE_INFO_OUTPUT AddrSurfInfoOut = {0};
   ADDR_COMPUTE_DCCINFO_INPUT AddrDccIn = {0};
   ADDR_COMPUTE_DCCINFO_OUTPUT AddrDccOut = {0};
   ADDR_COMPUTE_HTILE_INFO_INPUT AddrHtileIn = {0};
   ADDR_COMPUTE_HTILE_INFO_OUTPUT AddrHtileOut = {0};
   ADDR_TILEINFO AddrTileInfoIn = {0};
   ADDR_TILEINFO AddrTileInfoOut = {0};
   int r;

   r = amdgpu_surface_sanity(tex);
   if (r)
      return r;

   AddrSurfInfoIn.size = sizeof(ADDR_COMPUTE_SURFACE_INFO_INPUT);
   AddrSurfInfoOut.size = sizeof(ADDR_COMPUTE_SURFACE_INFO_OUTPUT);
   AddrDccIn.size = sizeof(ADDR_COMPUTE_DCCINFO_INPUT);
   AddrDccOut.size = sizeof(ADDR_COMPUTE_DCCINFO_OUTPUT);
   AddrHtileIn.size = sizeof(ADDR_COMPUTE_HTILE_INFO_INPUT);
   AddrHtileOut.size = sizeof(ADDR_COMPUTE_HTILE_INFO_OUTPUT);
   AddrSurfInfoOut.pTileInfo = &AddrTileInfoOut;

   surf->blk_w = util_format_get_blockwidth(tex->format);
   surf->blk_h = util_format_get_blockheight(tex->format);
   surf->bpe = bpe;
   surf->flags = flags;

   compressed = surf->blk_w == 4 && surf->blk_h == 4;

   /* MSAA and FMASK require 2D tiling. */
   if (tex->nr_samples > 1 ||
       (flags & RADEON_SURF_FMASK))
      mode = RADEON_SURF_MODE_2D;

   /* DB doesn't support linear layouts. */
   if (flags & (RADEON_SURF_Z_OR_SBUFFER) &&
       mode < RADEON_SURF_MODE_1D)
      mode = RADEON_SURF_MODE_1D;

   /* Set the requested tiling mode. */
   switch (mode) {
   case RADEON_SURF_MODE_LINEAR_ALIGNED:
      AddrSurfInfoIn.tileMode = ADDR_TM_LINEAR_ALIGNED;
      break;
   case RADEON_SURF_MODE_1D:
      AddrSurfInfoIn.tileMode = ADDR_TM_1D_TILED_THIN1;
      break;
   case RADEON_SURF_MODE_2D:
      AddrSurfInfoIn.tileMode = ADDR_TM_2D_TILED_THIN1;
      break;
   default:
      assert(0);
   }

   /* The format must be set correctly for the allocation of compressed
    * textures to work. In other cases, setting the bpp is sufficient. */
   if (compressed) {
      switch (bpe) {
      case 8:
         AddrSurfInfoIn.format = ADDR_FMT_BC1;
         break;
      case 16:
         AddrSurfInfoIn.format = ADDR_FMT_BC3;
         break;
      default:
         assert(0);
      }
   }
   else {
      AddrDccIn.bpp = AddrSurfInfoIn.bpp = bpe * 8;
   }

   AddrDccIn.numSamples = AddrSurfInfoIn.numSamples =
      tex->nr_samples ? tex->nr_samples : 1;
   AddrSurfInfoIn.tileIndex = -1;

   /* Set the micro tile type. */
   if (flags & RADEON_SURF_SCANOUT)
      AddrSurfInfoIn.tileType = ADDR_DISPLAYABLE;
   else if (flags & (RADEON_SURF_Z_OR_SBUFFER | RADEON_SURF_FMASK))
      AddrSurfInfoIn.tileType = ADDR_DEPTH_SAMPLE_ORDER;
   else
      AddrSurfInfoIn.tileType = ADDR_NON_DISPLAYABLE;

   AddrSurfInfoIn.flags.color = !(flags & RADEON_SURF_Z_OR_SBUFFER);
   AddrSurfInfoIn.flags.depth = (flags & RADEON_SURF_ZBUFFER) != 0;
   AddrSurfInfoIn.flags.cube = tex->target == PIPE_TEXTURE_CUBE;
   AddrSurfInfoIn.flags.fmask = (flags & RADEON_SURF_FMASK) != 0;
   AddrSurfInfoIn.flags.display = (flags & RADEON_SURF_SCANOUT) != 0;
   AddrSurfInfoIn.flags.pow2Pad = tex->last_level > 0;
   AddrSurfInfoIn.flags.tcCompatible = (flags & RADEON_SURF_TC_COMPATIBLE_HTILE) != 0;

   /* Only degrade the tile mode for space if TC-compatible HTILE hasn't been
    * requested, because TC-compatible HTILE requires 2D tiling.
    */
   AddrSurfInfoIn.flags.opt4Space = !AddrSurfInfoIn.flags.tcCompatible &&
                                    !AddrSurfInfoIn.flags.fmask &&
                                    tex->nr_samples <= 1 &&
                                    (flags & RADEON_SURF_OPTIMIZE_FOR_SPACE);

   /* DCC notes:
    * - If we add MSAA support, keep in mind that CB can't decompress 8bpp
    *   with samples >= 4.
    * - Mipmapped array textures have low performance (discovered by a closed
    *   driver team).
    */
   AddrSurfInfoIn.flags.dccCompatible = ws->info.chip_class >= VI &&
                                        !(flags & RADEON_SURF_Z_OR_SBUFFER) &&
                                        !(flags & RADEON_SURF_DISABLE_DCC) &&
                                        !compressed && AddrDccIn.numSamples <= 1 &&
                                        ((tex->array_size == 1 && tex->depth0 == 1) ||
                                         tex->last_level == 0);

   AddrSurfInfoIn.flags.noStencil = (flags & RADEON_SURF_SBUFFER) == 0;
   AddrSurfInfoIn.flags.compressZ = AddrSurfInfoIn.flags.depth;

   /* noStencil = 0 can result in a depth part that is incompatible with
    * mipmapped texturing. So set noStencil = 1 when mipmaps are requested (in
    * this case, we may end up setting stencil_adjusted).
    *
    * TODO: update addrlib to a newer version, remove this, and
    * use flags.matchStencilTileCfg = 1 as an alternative fix.
    */
  if (tex->last_level > 0)
      AddrSurfInfoIn.flags.noStencil = 1;

   /* Set preferred macrotile parameters. This is usually required
    * for shared resources. This is for 2D tiling only. */
   if (AddrSurfInfoIn.tileMode >= ADDR_TM_2D_TILED_THIN1 &&
       surf->u.legacy.bankw && surf->u.legacy.bankh &&
       surf->u.legacy.mtilea && surf->u.legacy.tile_split) {
      assert(!(flags & RADEON_SURF_FMASK));

      /* If any of these parameters are incorrect, the calculation
       * will fail. */
      AddrTileInfoIn.banks = surf->u.legacy.num_banks;
      AddrTileInfoIn.bankWidth = surf->u.legacy.bankw;
      AddrTileInfoIn.bankHeight = surf->u.legacy.bankh;
      AddrTileInfoIn.macroAspectRatio = surf->u.legacy.mtilea;
      AddrTileInfoIn.tileSplitBytes = surf->u.legacy.tile_split;
      AddrTileInfoIn.pipeConfig = surf->u.legacy.pipe_config + 1; /* +1 compared to GB_TILE_MODE */
      AddrSurfInfoIn.flags.opt4Space = 0;
      AddrSurfInfoIn.pTileInfo = &AddrTileInfoIn;

      /* If AddrSurfInfoIn.pTileInfo is set, Addrlib doesn't set
       * the tile index, because we are expected to know it if
       * we know the other parameters.
       *
       * This is something that can easily be fixed in Addrlib.
       * For now, just figure it out here.
       * Note that only 2D_TILE_THIN1 is handled here.
       */
      assert(!(flags & RADEON_SURF_Z_OR_SBUFFER));
      assert(AddrSurfInfoIn.tileMode == ADDR_TM_2D_TILED_THIN1);

      if (ws->info.chip_class == SI) {
         if (AddrSurfInfoIn.tileType == ADDR_DISPLAYABLE) {
            if (bpe == 2)
               AddrSurfInfoIn.tileIndex = 11; /* 16bpp */
            else
               AddrSurfInfoIn.tileIndex = 12; /* 32bpp */
         } else {
            if (bpe == 1)
               AddrSurfInfoIn.tileIndex = 14; /* 8bpp */
            else if (bpe == 2)
               AddrSurfInfoIn.tileIndex = 15; /* 16bpp */
            else if (bpe == 4)
               AddrSurfInfoIn.tileIndex = 16; /* 32bpp */
            else
               AddrSurfInfoIn.tileIndex = 17; /* 64bpp (and 128bpp) */
         }
      } else {
         /* CIK - VI */
         if (AddrSurfInfoIn.tileType == ADDR_DISPLAYABLE)
            AddrSurfInfoIn.tileIndex = 10; /* 2D displayable */
         else
            AddrSurfInfoIn.tileIndex = 14; /* 2D non-displayable */

         /* Addrlib doesn't set this if tileIndex is forced like above. */
         AddrSurfInfoOut.macroModeIndex = cik_get_macro_tile_index(surf);
      }
   }

   surf->num_dcc_levels = 0;
   surf->surf_size = 0;
   surf->dcc_size = 0;
   surf->dcc_alignment = 1;
   surf->htile_size = 0;
   surf->htile_alignment = 1;

   /* Calculate texture layout information. */
   for (level = 0; level <= tex->last_level; level++) {
      r = gfx6_compute_level(ws, tex, surf, false, level, compressed,
                             &AddrSurfInfoIn, &AddrSurfInfoOut,
                             &AddrDccIn, &AddrDccOut, &AddrHtileIn, &AddrHtileOut);
      if (r)
         return r;

      if (level == 0) {
         surf->surf_alignment = AddrSurfInfoOut.baseAlign;
         surf->u.legacy.pipe_config = AddrSurfInfoOut.pTileInfo->pipeConfig - 1;
         gfx6_set_micro_tile_mode(surf, &ws->info);

         /* For 2D modes only. */
         if (AddrSurfInfoOut.tileMode >= ADDR_TM_2D_TILED_THIN1) {
            surf->u.legacy.bankw = AddrSurfInfoOut.pTileInfo->bankWidth;
            surf->u.legacy.bankh = AddrSurfInfoOut.pTileInfo->bankHeight;
            surf->u.legacy.mtilea = AddrSurfInfoOut.pTileInfo->macroAspectRatio;
            surf->u.legacy.tile_split = AddrSurfInfoOut.pTileInfo->tileSplitBytes;
            surf->u.legacy.num_banks = AddrSurfInfoOut.pTileInfo->banks;
            surf->u.legacy.macro_tile_index = AddrSurfInfoOut.macroModeIndex;
         } else {
            surf->u.legacy.macro_tile_index = 0;
         }
      }
   }

   /* Calculate texture layout information for stencil. */
   if (flags & RADEON_SURF_SBUFFER) {
      AddrSurfInfoIn.bpp = 8;
      AddrSurfInfoIn.flags.depth = 0;
      AddrSurfInfoIn.flags.stencil = 1;
      AddrSurfInfoIn.flags.tcCompatible = 0;
      /* This will be ignored if AddrSurfInfoIn.pTileInfo is NULL. */
      AddrTileInfoIn.tileSplitBytes = surf->u.legacy.stencil_tile_split;

      for (level = 0; level <= tex->last_level; level++) {
         r = gfx6_compute_level(ws, tex, surf, true, level, compressed,
                                &AddrSurfInfoIn, &AddrSurfInfoOut,
                                &AddrDccIn, &AddrDccOut,
                                NULL, NULL);
         if (r)
            return r;

         /* DB uses the depth pitch for both stencil and depth. */
         if (surf->u.legacy.stencil_level[level].nblk_x != surf->u.legacy.level[level].nblk_x)
            surf->u.legacy.stencil_adjusted = true;

         if (level == 0) {
            /* For 2D modes only. */
            if (AddrSurfInfoOut.tileMode >= ADDR_TM_2D_TILED_THIN1) {
               surf->u.legacy.stencil_tile_split =
                     AddrSurfInfoOut.pTileInfo->tileSplitBytes;
            }
         }
      }
   }

   /* Recalculate the whole DCC miptree size including disabled levels.
    * This is what addrlib does, but calling addrlib would be a lot more
    * complicated.
    */
   if (surf->dcc_size && tex->last_level > 0) {
      surf->dcc_size = align64(surf->surf_size >> 8,
                               ws->info.pipe_interleave_bytes *
                               ws->info.num_tile_pipes);
   }

   /* Make sure HTILE covers the whole miptree, because the shader reads
    * TC-compatible HTILE even for levels where it's disabled by DB.
    */
   if (surf->htile_size && tex->last_level)
	   surf->htile_size *= 2;

   surf->is_linear = surf->u.legacy.level[0].mode == RADEON_SURF_MODE_LINEAR_ALIGNED;
   return 0;
}

void amdgpu_surface_init_functions(struct amdgpu_winsys *ws)
{
   if (ws->info.chip_class >= GFX9)
      ws->base.surface_init = NULL;
   else
      ws->base.surface_init = gfx6_surface_init;
}