[Mesa-dev] [PATCH 5/5] genxml: Make 3DSTATE_CONSTANT_BODY on Gen7+ use arrays.

Lionel Landwerlin lionel.g.landwerlin at intel.com
Tue May 30 22:44:08 UTC 2017


With Jason's comment addressed :

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin at intel.com>

On 20/05/17 08:24, Kenneth Graunke wrote:
> This will let us initialize the constant buffers with loops.
> ---
>   src/intel/genxml/gen7.xml                     | 14 ++++++--------
>   src/intel/genxml/gen75.xml                    | 14 ++++++--------
>   src/intel/genxml/gen8.xml                     | 14 ++++++--------
>   src/intel/genxml/gen9.xml                     | 14 ++++++--------
>   src/intel/vulkan/genX_cmd_buffer.c            |  8 ++++----
>   src/mesa/drivers/dri/i965/genX_state_upload.c | 10 ++++------
>   6 files changed, 32 insertions(+), 42 deletions(-)
>
> diff --git a/src/intel/genxml/gen7.xml b/src/intel/genxml/gen7.xml
> index c98327a1915..169db321656 100644
> --- a/src/intel/genxml/gen7.xml
> +++ b/src/intel/genxml/gen7.xml
> @@ -378,15 +378,13 @@
>     </struct>
>   
>     <struct name="3DSTATE_CONSTANT_BODY" length="6">
> -    <field name="Constant Buffer 1 Read Length" start="16" end="31" type="uint"/>
> -    <field name="Constant Buffer 0 Read Length" start="0" end="15" type="uint"/>
> -    <field name="Constant Buffer 3 Read Length" start="48" end="63" type="uint"/>
> -    <field name="Constant Buffer 2 Read Length" start="32" end="47" type="uint"/>
> -    <field name="Pointer To Constant Buffer 0" start="69" end="95" type="address"/>
> +    <group count="4" start="0" size="16">
> +      <field name="ReadLength" start="0" end="15" type="uint"/>
> +    </group>
>       <field name="Constant Buffer Object Control State" start="64" end="68" type="MEMORY_OBJECT_CONTROL_STATE"/>
> -    <field name="Pointer To Constant Buffer 1" start="101" end="127" type="address"/>
> -    <field name="Pointer To Constant Buffer 2" start="133" end="159" type="address"/>
> -    <field name="Pointer To Constant Buffer 3" start="165" end="191" type="address"/>
> +    <group count="4" start="64" size="32">
> +      <field name="Buffer" start="5" end="31" type="address"/>
> +    </group>
>     </struct>
>   
>     <struct name="VERTEX_BUFFER_STATE" length="4">
> diff --git a/src/intel/genxml/gen75.xml b/src/intel/genxml/gen75.xml
> index 11f1462cd1f..c923189bc62 100644
> --- a/src/intel/genxml/gen75.xml
> +++ b/src/intel/genxml/gen75.xml
> @@ -377,15 +377,13 @@
>     </struct>
>   
>     <struct name="3DSTATE_CONSTANT_BODY" length="6">
> -    <field name="Constant Buffer 1 Read Length" start="16" end="31" type="uint"/>
> -    <field name="Constant Buffer 0 Read Length" start="0" end="15" type="uint"/>
> -    <field name="Constant Buffer 3 Read Length" start="48" end="63" type="uint"/>
> -    <field name="Constant Buffer 2 Read Length" start="32" end="47" type="uint"/>
> -    <field name="Pointer To Constant Buffer 0" start="69" end="95" type="address"/>
> +    <group count="4" start="0" size="16">
> +      <field name="ReadLength" start="0" end="15" type="uint"/>
> +    </group>
>       <field name="Constant Buffer Object Control State" start="64" end="68" type="MEMORY_OBJECT_CONTROL_STATE"/>
> -    <field name="Pointer To Constant Buffer 1" start="101" end="127" type="address"/>
> -    <field name="Pointer To Constant Buffer 2" start="133" end="159" type="address"/>
> -    <field name="Pointer To Constant Buffer 3" start="165" end="191" type="address"/>
> +    <group count="4" start="64" size="32">
> +      <field name="Buffer" start="5" end="31" type="address"/>
> +    </group>
>     </struct>
>   
>     <struct name="BINDING_TABLE_EDIT_ENTRY" length="1">
> diff --git a/src/intel/genxml/gen8.xml b/src/intel/genxml/gen8.xml
> index 541a788c82c..0b1e81e389d 100644
> --- a/src/intel/genxml/gen8.xml
> +++ b/src/intel/genxml/gen8.xml
> @@ -403,14 +403,12 @@
>     </enum>
>   
>     <struct name="3DSTATE_CONSTANT_BODY" length="10">
> -    <field name="Constant Buffer 1 Read Length" start="16" end="31" type="uint"/>
> -    <field name="Constant Buffer 0 Read Length" start="0" end="15" type="uint"/>
> -    <field name="Constant Buffer 3 Read Length" start="48" end="63" type="uint"/>
> -    <field name="Constant Buffer 2 Read Length" start="32" end="47" type="uint"/>
> -    <field name="Pointer To Constant Buffer 0" start="69" end="127" type="address"/>
> -    <field name="Pointer To Constant Buffer 1" start="133" end="191" type="address"/>
> -    <field name="Pointer To Constant Buffer 2" start="197" end="255" type="address"/>
> -    <field name="Pointer To Constant Buffer 3" start="261" end="319" type="address"/>
> +    <group count="4" start="0" size="16">
> +      <field name="ReadLength" start="0" end="15" type="uint"/>
> +    </group>
> +    <group count="4" start="64" size="64">
> +      <field name="Buffer" start="5" end="63" type="address"/>
> +    </group>
>     </struct>
>   
>     <struct name="BINDING_TABLE_EDIT_ENTRY" length="1">
> diff --git a/src/intel/genxml/gen9.xml b/src/intel/genxml/gen9.xml
> index a2c2020d140..d0e85af9c8a 100644
> --- a/src/intel/genxml/gen9.xml
> +++ b/src/intel/genxml/gen9.xml
> @@ -424,14 +424,12 @@
>     </enum>
>   
>     <struct name="3DSTATE_CONSTANT_BODY" length="10">
> -    <field name="Constant Buffer 1 Read Length" start="16" end="31" type="uint"/>
> -    <field name="Constant Buffer 0 Read Length" start="0" end="15" type="uint"/>
> -    <field name="Constant Buffer 3 Read Length" start="48" end="63" type="uint"/>
> -    <field name="Constant Buffer 2 Read Length" start="32" end="47" type="uint"/>
> -    <field name="Pointer To Constant Buffer 0" start="69" end="127" type="address"/>
> -    <field name="Pointer To Constant Buffer 1" start="133" end="191" type="address"/>
> -    <field name="Pointer To Constant Buffer 2" start="197" end="255" type="address"/>
> -    <field name="Pointer To Constant Buffer 3" start="261" end="319" type="address"/>
> +    <group count="4" start="0" size="16">
> +      <field name="ReadLength" start="0" end="15" type="uint"/>
> +    </group>
> +    <group count="4" start="64" size="64">
> +      <field name="Buffer" start="5" end="63" type="address"/>
> +    </group>
>     </struct>
>   
>     <struct name="BINDING_TABLE_EDIT_ENTRY" length="1">
> diff --git a/src/intel/vulkan/genX_cmd_buffer.c b/src/intel/vulkan/genX_cmd_buffer.c
> index ef9b7d0554c..5325e292694 100644
> --- a/src/intel/vulkan/genX_cmd_buffer.c
> +++ b/src/intel/vulkan/genX_cmd_buffer.c
> @@ -1457,11 +1457,11 @@ cmd_buffer_flush_push_constants(struct anv_cmd_buffer *cmd_buffer)
>               c._3DCommandSubOpcode = push_constant_opcodes[stage],
>               c.ConstantBody = (struct GENX(3DSTATE_CONSTANT_BODY)) {
>   #if GEN_GEN >= 9
> -               .PointerToConstantBuffer2 = { &cmd_buffer->device->dynamic_state_pool.block_pool.bo, state.offset },
> -               .ConstantBuffer2ReadLength = DIV_ROUND_UP(state.alloc_size, 32),
> +               .Buffer[2] = { &cmd_buffer->device->dynamic_state_pool.block_pool.bo, state.offset },
> +               .ReadLength[2] = DIV_ROUND_UP(state.alloc_size, 32),
>   #else
> -               .PointerToConstantBuffer0 = { .offset = state.offset },
> -               .ConstantBuffer0ReadLength = DIV_ROUND_UP(state.alloc_size, 32),
> +               .Buffer[0] = { .offset = state.offset },
> +               .ReadLength[0] = DIV_ROUND_UP(state.alloc_size, 32),
>   #endif
>               };
>            }
> diff --git a/src/mesa/drivers/dri/i965/genX_state_upload.c b/src/mesa/drivers/dri/i965/genX_state_upload.c
> index 5fad3b72e27..6a5e4f64056 100644
> --- a/src/mesa/drivers/dri/i965/genX_state_upload.c
> +++ b/src/mesa/drivers/dri/i965/genX_state_upload.c
> @@ -2598,14 +2598,12 @@ upload_constant_state(struct brw_context *brw,
>         pkt._3DCommandSubOpcode = push_constant_opcodes[stage];
>         if (active) {
>   #if GEN_GEN >= 8 || GEN_IS_HASWELL
> -         pkt.ConstantBody.ConstantBuffer2ReadLength =
> -            stage_state->push_const_size;
> -         pkt.ConstantBody.PointerToConstantBuffer2 =
> +         pkt.ConstantBody.ReadLength[2] = stage_state->push_const_size;
> +         pkt.ConstantBody.Buffer[2] =
>               render_ro_bo(brw->curbe.curbe_bo, stage_state->push_const_offset);
>   #else
> -         pkt.ConstantBody.ConstantBuffer0ReadLength =
> -            stage_state->push_const_size;
> -         pkt.ConstantBody.PointerToConstantBuffer0.offset =
> +         pkt.ConstantBody.ReadLength[0] = stage_state->push_const_size;
> +         pkt.ConstantBody.Buffer[0].offset =
>               stage_state->push_const_offset | mocs;
>   #endif
>         }




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