radeonsi: Allocate buffers for DCC.

As the alignment requirements can be 32 KiB or more, also adding
an aligned buffer creation function.

DCC is disabled for textures that can be shared as sharing the
DCC buffers has not been implemented yet.

Signed-off-by: Bas Nieuwenhuizen <[email protected]>
Signed-off-by: Marek Olšák <[email protected]>

1 files changed, 42 insertions, 5 deletions

diff --git a/src/gallium/winsys/amdgpu/drm/amdgpu_surface.c b/src/gallium/winsys/amdgpu/drm/amdgpu_surface.c
index 358df381011..b442174b7b8 100644
--- a/src/gallium/winsys/amdgpu/drm/amdgpu_surface.c
+++ b/src/gallium/winsys/amdgpu/drm/amdgpu_surface.c
@@ -175,7 +175,9 @@ static int compute_level(struct amdgpu_winsys *ws,
                          struct radeon_surf *surf, bool is_stencil,
                          unsigned level, unsigned type, bool compressed,
                          ADDR_COMPUTE_SURFACE_INFO_INPUT *AddrSurfInfoIn,
-                         ADDR_COMPUTE_SURFACE_INFO_OUTPUT *AddrSurfInfoOut)
+                         ADDR_COMPUTE_SURFACE_INFO_OUTPUT *AddrSurfInfoOut,
+                         ADDR_COMPUTE_DCCINFO_INPUT *AddrDccIn,
+                         ADDR_COMPUTE_DCCINFO_OUTPUT *AddrDccOut)
 {
    struct radeon_surf_level *surf_level;
    ADDR_E_RETURNCODE ret;
@@ -248,6 +250,30 @@ static int compute_level(struct amdgpu_winsys *ws,
       surf->tiling_index[level] = AddrSurfInfoOut->tileIndex;
 
    surf->bo_size = surf_level->offset + AddrSurfInfoOut->surfSize;
+
+   if (surf->dcc_enabled) {
+      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->dcc_size = surf_level->dcc_offset + AddrDccOut->dccRamSize;
+         surf->dcc_alignment = MAX2(surf->dcc_alignment, AddrDccOut->dccRamBaseAlign);
+      } else {
+         surf->dcc_enabled = false;
+         surf_level->dcc_offset = 0;
+      }
+   } else {
+      surf_level->dcc_offset = 0;
+   }
+
    return 0;
 }
 
@@ -259,6 +285,8 @@ static int amdgpu_surface_init(struct radeon_winsys *rws,
    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_TILEINFO AddrTileInfoIn = {0};
    ADDR_TILEINFO AddrTileInfoOut = {0};
    int r;
@@ -269,6 +297,8 @@ static int amdgpu_surface_init(struct radeon_winsys *rws,
 
    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);
    AddrSurfInfoOut.pTileInfo = &AddrTileInfoOut;
 
    type = RADEON_SURF_GET(surf->flags, TYPE);
@@ -318,12 +348,16 @@ static int amdgpu_surface_init(struct radeon_winsys *rws,
       }
    }
    else {
-      AddrSurfInfoIn.bpp = surf->bpe * 8;
+      AddrDccIn.bpp = AddrSurfInfoIn.bpp = surf->bpe * 8;
    }
 
-   AddrSurfInfoIn.numSamples = surf->nsamples;
+   AddrDccIn.numSamples = AddrSurfInfoIn.numSamples = surf->nsamples;
    AddrSurfInfoIn.tileIndex = -1;
 
+   surf->dcc_enabled =  !(surf->flags & RADEON_SURF_Z_OR_SBUFFER) &&
+                        !(surf->flags & RADEON_SURF_SCANOUT) &&
+                        !compressed && AddrDccIn.numSamples <= 1;
+
    /* Set the micro tile type. */
    if (surf->flags & RADEON_SURF_SCANOUT)
       AddrSurfInfoIn.tileType = ADDR_DISPLAYABLE;
@@ -339,6 +373,7 @@ static int amdgpu_surface_init(struct radeon_winsys *rws,
    AddrSurfInfoIn.flags.display = (surf->flags & RADEON_SURF_SCANOUT) != 0;
    AddrSurfInfoIn.flags.pow2Pad = surf->last_level > 0;
    AddrSurfInfoIn.flags.degrade4Space = 1;
+   AddrSurfInfoIn.flags.dccCompatible = surf->dcc_enabled;
 
    /* This disables incorrect calculations (hacks) in addrlib. */
    AddrSurfInfoIn.flags.noStencil = 1;
@@ -375,11 +410,13 @@ static int amdgpu_surface_init(struct radeon_winsys *rws,
    }
 
    surf->bo_size = 0;
+   surf->dcc_size = 0;
+   surf->dcc_alignment = 1;
 
    /* Calculate texture layout information. */
    for (level = 0; level <= surf->last_level; level++) {
       r = compute_level(ws, surf, false, level, type, compressed,
-                        &AddrSurfInfoIn, &AddrSurfInfoOut);
+                        &AddrSurfInfoIn, &AddrSurfInfoOut, &AddrDccIn, &AddrDccOut);
       if (r)
          return r;
 
@@ -406,7 +443,7 @@ static int amdgpu_surface_init(struct radeon_winsys *rws,
 
       for (level = 0; level <= surf->last_level; level++) {
          r = compute_level(ws, surf, true, level, type, compressed,
-                           &AddrSurfInfoIn, &AddrSurfInfoOut);
+                           &AddrSurfInfoIn, &AddrSurfInfoOut, &AddrDccIn, &AddrDccOut);
          if (r)
             return r;