diff options
| author | Jason Ekstrand <[email protected]> | 2020-01-23 22:21:03 -0600 |
|---|---|---|
| committer | Marge Bot <[email protected]> | 2020-01-24 19:18:27 +0000 |
| commit | 17e225ee1e55996eabc675e210f5c97be4c00c83 (patch) | |
| tree | 5620c73736cf6700cd032436959d1ddcfa9f3e1f /src/intel/isl | |
| parent | 4cd23420bd965be22df2fbdc884803cd219f9532 (diff) | |
intel/isl: Add a hack for the Gen12 A0 texture buffer bug
Reviewed-by: Kenneth Graunke <[email protected]>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3547>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3547>
Diffstat (limited to 'src/intel/isl')
| -rw-r--r-- | src/intel/isl/isl_surface_state.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/intel/isl/isl_surface_state.c b/src/intel/isl/isl_surface_state.c index b1e38fdf66e..f1d55686797 100644 --- a/src/intel/isl/isl_surface_state.c +++ b/src/intel/isl/isl_surface_state.c @@ -806,6 +806,25 @@ isl_genX(buffer_fill_state_s)(const struct isl_device *dev, void *state, s.Depth = ((num_elements - 1) >> 20) & 0x7f; #endif + if (GEN_GEN == 12 && dev->info->revision == 0) { + /* TGL-LP A0 has a HW bug (fixed in later HW) which causes buffer + * textures with very close base addresses (delta < 64B) to corrupt each + * other. We can sort-of work around this by making small buffer + * textures 1D textures instead. This doesn't fix the problem for large + * buffer textures but the liklihood of large, overlapping, and very + * close buffer textures is fairly low and the point is to hack around + * the bug so we can run apps and tests. + */ + if (info->format != ISL_FORMAT_RAW && + info->stride_B == isl_format_get_layout(info->format)->bpb / 8 && + num_elements <= (1 << 14)) { + s.SurfaceType = SURFTYPE_1D; + s.Width = num_elements - 1; + s.Height = 0; + s.Depth = 0; + } + } + s.SurfacePitch = info->stride_B - 1; #if GEN_GEN >= 6 |