On Tue, Oct 28, 2014 at 4:17 PM, Matt Turner <matts...@gmail.com> wrote:
> On Tue, Oct 28, 2014 at 3:17 PM, Kristian Høgsberg <k...@bitplanet.net> wrote:
>> This is all we need from the generator for SIMD8 vertex shaders. This
>> opcode is just the send instruction, all the hard work will happen
>> in the visitor using LOAD_PAYLOAD.
>>
>> Signed-off-by: Kristian Høgsberg <k...@bitplanet.net>
>> ---
>> src/mesa/drivers/dri/i965/brw_defines.h | 1 +
>> src/mesa/drivers/dri/i965/brw_fs.cpp | 4 ++++
>> src/mesa/drivers/dri/i965/brw_fs.h | 1 +
>> src/mesa/drivers/dri/i965/brw_fs_generator.cpp | 25
>> +++++++++++++++++++++++
>> src/mesa/drivers/dri/i965/brw_fs_reg_allocate.cpp | 16 ++++++++++++++-
>> src/mesa/drivers/dri/i965/brw_shader.cpp | 1 +
>> 6 files changed, 47 insertions(+), 1 deletion(-)
>>
>> diff --git a/src/mesa/drivers/dri/i965/brw_defines.h
>> b/src/mesa/drivers/dri/i965/brw_defines.h
>> index ab45d3d..bc7304b 100644
>> --- a/src/mesa/drivers/dri/i965/brw_defines.h
>> +++ b/src/mesa/drivers/dri/i965/brw_defines.h
>> @@ -1520,6 +1520,7 @@ enum brw_message_target {
>>
>> #define BRW_URB_OPCODE_WRITE_HWORD 0
>> #define BRW_URB_OPCODE_WRITE_OWORD 1
>> +#define BRW_URB_OPCODE_SIMD8_WRITE 7
>
> BSpec is failing me -- if this is Gen8+, prefix with GEN8 rather than BRW.
It is, I'll fix the prefix.
>>
>> #define BRW_URB_SWIZZLE_NONE 0
>> #define BRW_URB_SWIZZLE_INTERLEAVE 1
>> diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp
>> b/src/mesa/drivers/dri/i965/brw_fs.cpp
>> index 97fefff..815c8c2 100644
>> --- a/src/mesa/drivers/dri/i965/brw_fs.cpp
>> +++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
>> @@ -509,6 +509,7 @@ fs_inst::is_send_from_grf() const
>> case FS_OPCODE_INTERPOLATE_AT_PER_SLOT_OFFSET:
>> case SHADER_OPCODE_UNTYPED_ATOMIC:
>> case SHADER_OPCODE_UNTYPED_SURFACE_READ:
>> + case VS_OPCODE_URB_WRITE:
>
> Presumably we'll do SIMD8 geometry shaders (and tessellation in the
> future?). As a follow on, could we consolidate [GV]S_OPCODE_URB_WRITE
> into one SHADER_OPCODE_URB_WRITE?
Yeah, good point, I'll just update the opcode now.
Kristian
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