diff options
| author | Jason Ekstrand <[email protected]> | 2016-03-03 16:15:54 -0800 |
|---|---|---|
| committer | Jason Ekstrand <[email protected]> | 2016-03-03 16:16:57 -0800 |
| commit | 56ba13c994fc3b1c4058bb99656dad6fa2aa819d (patch) | |
| tree | 5d6fb396b54c7c568baa14ae87a85a386a2a3720 /src/intel/isl/isl_surface_state.c | |
| parent | 623ce595a97cc3ec47be042867e24047162cd371 (diff) | |
isl/surface_state: Set L2 bypass disable for certain BC* formats
Diffstat (limited to 'src/intel/isl/isl_surface_state.c')
| -rw-r--r-- | src/intel/isl/isl_surface_state.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/intel/isl/isl_surface_state.c b/src/intel/isl/isl_surface_state.c index 0f45100fba3..1607aa6233d 100644 --- a/src/intel/isl/isl_surface_state.c +++ b/src/intel/isl/isl_surface_state.c @@ -370,6 +370,28 @@ isl_genX(surf_fill_state_s)(const struct isl_device *dev, void *state, s.MIPCountLOD = MAX(info->view->levels, 1) - 1; } +#if GEN_GEN >= 8 + /* From the CHV PRM, Volume 2d, page 321 (RENDER_SURFACE_STATE dword 0 + * bit 9 "Sampler L2 Bypass Mode Disable" Programming Notes): + * + * This bit must be set for the following surface types: BC2_UNORM + * BC3_UNORM BC5_UNORM BC5_SNORM BC7_UNORM + */ + if (GEN_GEN >= 9 || dev->info->is_cherryview) { + switch (info->view->format) { + case ISL_FORMAT_BC2_UNORM: + case ISL_FORMAT_BC3_UNORM: + case ISL_FORMAT_BC5_UNORM: + case ISL_FORMAT_BC5_SNORM: + case ISL_FORMAT_BC7_UNORM: + s.SamplerL2BypassModeDisable = true; + break; + default: + break; + } + } +#endif + #if 0 if (GEN_GEN == 8) { if (isl_format_is_integer(info->view->format)) { |