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iris: Implement new way for setting streamout buffers.

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For gen12 we set the streamout buffers using 4 separate
commands instead of 3DSTATE_SO_BUFFER.

Signed-off-by: Plamena Manolova <plamena.manolova@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
This commit is contained in:
Plamena Manolova 2019-10-23 23:45:58 +01:00
parent 665b81e29a
commit 0f610e17bc
2 changed files with 23 additions and 3 deletions
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10
src/gallium/drivers/iris/iris_defines.h
View file

@ -55,4 +55,14 @@
/* The number of bits in our TIMESTAMP queries. */
#define TIMESTAMP_BITS 36
/* For gen12 we set the streamout buffers using 4 separate commands
* (3DSTATE_SO_BUFFER_INDEX_*) instead of 3DSTATE_SO_BUFFER. However the layout
* of the 3DSTATE_SO_BUFFER_INDEX_* commands is identical to that of
* 3DSTATE_SO_BUFFER apart from the SOBufferIndex field, so for now we use the
* 3DSTATE_SO_BUFFER command, but change the 3DCommandSubOpcode.
* SO_BUFFER_INDEX_0_CMD is actually the 3DCommandSubOpcode for
* 3DSTATE_SO_BUFFER_INDEX_0.
*/
#define SO_BUFFER_INDEX_0_CMD 0x60
#endif

16
src/gallium/drivers/iris/iris_state.c
View file

@ -3545,8 +3545,14 @@ iris_set_stream_output_targets(struct pipe_context *ctx,
unsigned offset = offsets[i];
if (!tgt) {
iris_pack_command(GENX(3DSTATE_SO_BUFFER), so_buffers, sob)
iris_pack_command(GENX(3DSTATE_SO_BUFFER), so_buffers, sob) {
#if GEN_GEN < 12
sob.SOBufferIndex = i;
#else
sob._3DCommandOpcode = 0;
sob._3DCommandSubOpcode = SO_BUFFER_INDEX_0_CMD + i;
#endif
}
continue;
}
@ -3567,6 +3573,12 @@ iris_set_stream_output_targets(struct pipe_context *ctx,
offset = 0;
iris_pack_command(GENX(3DSTATE_SO_BUFFER), so_buffers, sob) {
#if GEN_GEN < 12
sob.SOBufferIndex = i;
#else
sob._3DCommandOpcode = 0;
sob._3DCommandSubOpcode = SO_BUFFER_INDEX_0_CMD + i;
#endif
sob.SurfaceBaseAddress =
rw_bo(NULL, res->bo->gtt_offset + tgt->base.buffer_offset);
sob.SOBufferEnable = true;
@ -3575,8 +3587,6 @@ iris_set_stream_output_targets(struct pipe_context *ctx,
sob.MOCS = mocs(res->bo);
sob.SurfaceSize = MAX2(tgt->base.buffer_size / 4, 1) - 1;
sob.SOBufferIndex = i;
sob.StreamOffset = offset;
sob.StreamOutputBufferOffsetAddress =
rw_bo(NULL, iris_resource_bo(tgt->offset.res)->gtt_offset +