1) minimizePadding - Use 1D tile mode if padded size of 2D is bigger
than 1D
2) maxBaseAlign - Force PRT tile mode if macro block size is bigger than
requested alignment.
Also, related changes to tile mode optimization for needEquation.
1. Add new surface flags needEquation for client driver use to force
the surface tile setting equation compatible. Override 2D/3D macro
tile mode to PRT_* tile mode if this flag is TRUE and num slice > 1.
2. Add numEquations and pEquationTable in ADDR_CREATE_OUTPUT structure
to return number of equations and the equation table to client driver
3. Add equationIndex in ADDR_COMPUTE_SURFACE_INFO_OUTPUT structure to
return the equation index to client driver
Please note the use of address equation has following restrictions:
1) The surface can't be splitable
2) The surface can't have non zero tile swizzle value
3) Surface with > 1 slices must have PRT tile mode, which disable
slice rotation
Sometimes client driver passes valid tile info into address library,
in this case, the tile index is computed in function
HwlPostCheckTileIndex instead of CiAddrLib::HwlSetupTileCfg.
We need to call HwlPostCheckTileIndex to calculate the correct tile
index to get tile split bytes for this case.
When clients queries tile Info from tile index and expects accurate
tileSplit info, bits per pixel info is required to be provided since
this is necessary for computing tileSplitBytes; otherwise Addrlib will
return value of "tileBytes" instead if bpp is 0 - which is also
current logic. If clients don't need tileSplit info, it's OK to pass
bpp with value 0.
Kaveri (2-pipe) macro tiling mode table was initially set to all
4-aspect-ratio so the swizzling path did not work for it and then we
chose to pad the offset. We now discover the root cause is that if
ratio > 2, the swizzling path does not work. So we can safely use the
same path for Kaveri.
Even if surface info input flag "tcComaptible" is enabled, tc
compatible may be not supported if tile split happens for depth
surfaces. Add a new flag in output structure to notify client to
disable tc compatible in this case.
Change the logic to compute tc compatible stencil info via depth's
tileIndex instead of using depth's tileInfo. So the clients can get
the stencil's tileInfo computed from macroModeTable. If the stencil
tileInfo is same as depth tileInfo, then stencil is tc compatible;
otherwise, stencil is not tc compatible. The current suggestion is to
create another stencil buffer with the tc compatible tileInfo, use
depth-to-color copy to decompress and tile convert the rendered
stencil to tc compoatible stencil (And use the new stencil buffer to
program TC).
v2: use gfxip names for llvm 4.0+
v3: use tonga for llvm <= 3.8, drop gfxip name,
we can just change that we change the other asics.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
