static int vc4_rcl_msaa_surface_setup(struct vc4_exec_info *exec,
struct drm_gem_cma_object **obj,
struct drm_vc4_submit_rcl_surface *surf)
{
if (surf->flags != 0 || surf->bits != 0) {
DRM_ERROR("MSAA surface had nonzero flags/bits\n");
return -EINVAL;
}
if (surf->hindex == ~0)
return 0;
*obj = vc4_use_bo(exec, surf->hindex);
if (!*obj)
return -EINVAL;
exec->rcl_write_bo[exec->rcl_write_bo_count++] = *obj;
if (surf->offset & 0xf) {
DRM_ERROR("MSAA write must be 16b aligned.\n");
return -EINVAL;
}
return vc4_full_res_bounds_check(exec, *obj, surf);
}
static int vc4_rcl_surface_setup(struct vc4_exec_info *exec,
struct drm_gem_cma_object **obj,
struct drm_vc4_submit_rcl_surface *surf)
{
uint8_t tiling = VC4_GET_FIELD(surf->bits,
VC4_LOADSTORE_TILE_BUFFER_TILING);
uint8_t buffer = VC4_GET_FIELD(surf->bits,
VC4_LOADSTORE_TILE_BUFFER_BUFFER);
uint8_t format = VC4_GET_FIELD(surf->bits,
VC4_LOADSTORE_TILE_BUFFER_FORMAT);
int cpp;
int ret;
if (surf->flags & ~VC4_SUBMIT_RCL_SURFACE_READ_IS_FULL_RES) {
DRM_ERROR("Extra flags set\n");
return -EINVAL;
}
if (surf->hindex == ~0)
return 0;
*obj = vc4_use_bo(exec, surf->hindex);
if (!*obj)
return -EINVAL;
if (surf->flags & VC4_SUBMIT_RCL_SURFACE_READ_IS_FULL_RES) {
if (surf == &exec->args->zs_write) {
DRM_ERROR("general zs write may not be a full-res.\n");
return -EINVAL;
}
if (surf->bits != 0) {
DRM_ERROR("load/store general bits set with "
"full res load/store.\n");
return -EINVAL;
}
ret = vc4_full_res_bounds_check(exec, *obj, surf);
if (!ret)
return ret;
return 0;
}
if (surf->bits & ~(VC4_LOADSTORE_TILE_BUFFER_TILING_MASK |
VC4_LOADSTORE_TILE_BUFFER_BUFFER_MASK |
VC4_LOADSTORE_TILE_BUFFER_FORMAT_MASK)) {
DRM_ERROR("Unknown bits in load/store: 0x%04x\n",
surf->bits);
return -EINVAL;
}
if (tiling > VC4_TILING_FORMAT_LT) {
DRM_ERROR("Bad tiling format\n");
return -EINVAL;
}
if (buffer == VC4_LOADSTORE_TILE_BUFFER_ZS) {
if (format != 0) {
DRM_ERROR("No color format should be set for ZS\n");
return -EINVAL;
}
cpp = 4;
} else if (buffer == VC4_LOADSTORE_TILE_BUFFER_COLOR) {
switch (format) {
case VC4_LOADSTORE_TILE_BUFFER_BGR565:
case VC4_LOADSTORE_TILE_BUFFER_BGR565_DITHER:
cpp = 2;
break;
case VC4_LOADSTORE_TILE_BUFFER_RGBA8888:
cpp = 4;
break;
default:
DRM_ERROR("Bad tile buffer format\n");
return -EINVAL;
}
} else {
DRM_ERROR("Bad load/store buffer %d.\n", buffer);
return -EINVAL;
}
if (surf->offset & 0xf) {
DRM_ERROR("load/store buffer must be 16b aligned.\n");
return -EINVAL;
}
if (!vc4_check_tex_size(exec, *obj, surf->offset, tiling,
exec->args->width, exec->args->height, cpp)) {
return -EINVAL;
}
return 0;
}