diff options
author | Matt Turner <[email protected]> | 2017-01-10 19:33:22 -0800 |
---|---|---|
committer | Francisco Jerez <[email protected]> | 2017-04-14 14:56:07 -0700 |
commit | 94ffeb7fa2257af3eb416a1e720e08911835665b (patch) | |
tree | 7a0ca179234800975785be42bcf2ae183c41e837 /src | |
parent | 82d17615f442555b3577be41e24edd341a11d01d (diff) |
i965: Use <0,2,1> region for scalar DF sources on IVB/BYT.
On HSW+, scalar DF sources can be accessed using the normal <0,1,0>
region, but on IVB and BYT DF regions must be programmed in terms of
floats. A <0,2,1> region accomplishes this.
v2:
- Apply region <0,2,1> in brw_reg_from_fs_reg() (Curro).
v3:
- Added comment explaining the reason (Curro).
Signed-off-by: Samuel Iglesias Gonsálvez <[email protected]>
Reviewed-by: Francisco Jerez <[email protected]>
Diffstat (limited to 'src')
-rw-r--r-- | src/intel/compiler/brw_fs_generator.cpp | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/intel/compiler/brw_fs_generator.cpp b/src/intel/compiler/brw_fs_generator.cpp index bcb6608d3ae..bc15fd11d96 100644 --- a/src/intel/compiler/brw_fs_generator.cpp +++ b/src/intel/compiler/brw_fs_generator.cpp @@ -143,6 +143,19 @@ brw_reg_from_fs_reg(const struct gen_device_info *devinfo, fs_inst *inst, unreachable("not reached"); } + /* On HSW+, scalar DF sources can be accessed using the normal <0,1,0> + * region, but on IVB and BYT DF regions must be programmed in terms of + * floats. A <0,2,1> region accomplishes this. + */ + if (devinfo->gen == 7 && !devinfo->is_haswell && + type_sz(reg->type) == 8 && + brw_reg.vstride == BRW_VERTICAL_STRIDE_0 && + brw_reg.width == BRW_WIDTH_1 && + brw_reg.hstride == BRW_HORIZONTAL_STRIDE_0) { + brw_reg.width = BRW_WIDTH_2; + brw_reg.hstride = BRW_HORIZONTAL_STRIDE_1; + } + return brw_reg; } |