From: Dave Airlie <[email protected]>
I think the cp packets can be made work, but I think it might
need a kernel change, so for now just do the worst thing.
---
src/gallium/drivers/r600/evergreen_compute.c | 26 +++++++++++++++++++-------
1 file changed, 19 insertions(+), 7 deletions(-)
diff --git a/src/gallium/drivers/r600/evergreen_compute.c
b/src/gallium/drivers/r600/evergreen_compute.c
index 7880d0f..b2c724f 100644
--- a/src/gallium/drivers/r600/evergreen_compute.c
+++ b/src/gallium/drivers/r600/evergreen_compute.c
@@ -630,13 +630,25 @@ static void evergreen_emit_dispatch(struct r600_context
*rctx,
radeon_compute_set_context_reg(cs, R_0288E8_SQ_LDS_ALLOC,
lds_size | (num_waves << 14));
- /* Dispatch packet */
- radeon_emit(cs, PKT3C(PKT3_DISPATCH_DIRECT, 3, 0));
- radeon_emit(cs, info->grid[0]);
- radeon_emit(cs, info->grid[1]);
- radeon_emit(cs, info->grid[2]);
- /* VGT_DISPATCH_INITIATOR = COMPUTE_SHADER_EN */
- radeon_emit(cs, 1);
+ if (info->indirect) {
+ struct r600_resource *indirect_resource = (struct r600_resource
*)info->indirect;
+ unsigned *data = r600_buffer_map_sync_with_rings(&rctx->b,
indirect_resource, PIPE_TRANSFER_READ);
+ if (data) {
+ radeon_emit(cs, PKT3C(PKT3_DISPATCH_DIRECT, 3, 0));
+ radeon_emit(cs, data[0]);
+ radeon_emit(cs, data[1]);
+ radeon_emit(cs, data[2]);
+ radeon_emit(cs, 1);
+ }
+ } else {
+ /* Dispatch packet */
+ radeon_emit(cs, PKT3C(PKT3_DISPATCH_DIRECT, 3, 0));
+ radeon_emit(cs, info->grid[0]);
+ radeon_emit(cs, info->grid[1]);
+ radeon_emit(cs, info->grid[2]);
+ /* VGT_DISPATCH_INITIATOR = COMPUTE_SHADER_EN */
+ radeon_emit(cs, 1);
+ }
if (rctx->is_debug)
eg_trace_emit(rctx);
--
2.1.0
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