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author | Samuel Iglesias Gonsálvez <[email protected]> | 2017-04-26 10:12:03 +0200 |
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committer | Samuel Iglesias Gonsálvez <[email protected]> | 2017-05-03 15:32:39 +0200 |
commit | 7f728bce811fc283e672e3a07b008bb7b52de35e (patch) | |
tree | fa51548f6b5f286c12acde54b9631d596278cddf /Android.mk | |
parent | 3bf3f9866c1387872521242921bb00c7fb7c2834 (diff) |
i965/vec4: fix vertical stride to avoid breaking region parameter rule
From IVB PRM, vol4, part3, "General Restrictions on Regioning
Parameters":
"If ExecSize = Width and HorzStride ≠ 0, VertStride must
be set to Width * HorzStride."
In next patch, we are going to modify the region parameter for
uniforms and vgrf. For uniforms that are the source of
DF align1 instructions, they will have <0, 4, 1> regioning and
the execsize for those instructions will be 4, so they will break
the regioning rule. This will be the same for VGRF sources where
we use the vstride == 0 exploit.
As we know we are not going to cross the GRF boundary with that
execsize and parameters (not even with the exploit), we just fix
the vstride here.
v2:
- Move is_align1_df() (Curro)
- Refactor exec_size == width calculation (Curro)
Signed-off-by: Samuel Iglesias Gonsálvez <[email protected]>
Cc: "17.1" <[email protected]>
Reviewed-by: Francisco Jerez <[email protected]>
Diffstat (limited to 'Android.mk')
0 files changed, 0 insertions, 0 deletions