Commit 4dfe7d7b authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/amdgpu/sdma4: add emit_reg_write_reg_wait ring callback (v2) 



This adds support for writing and reading back in a single
oneshot packet.  This is needed to send a tlb invalidation
and wait for ack in a single operation.

v2: squash sdma hang fix into this patch

Reviewed-by: default avatarHuang Rui <ray.huang@amd.com>
Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarEmily Deng <Emily.Deng@amd.com>
parent 10ed3c31

drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c

+1 −0
Original line number Diff line number Diff line
@@ -1611,6 +1611,7 @@ static const struct amdgpu_ring_funcs sdma_v4_0_ring_funcs = { 
	.pad_ib = sdma_v4_0_ring_pad_ib,

	.emit_wreg = sdma_v4_0_ring_emit_wreg,

	.emit_reg_wait = sdma_v4_0_ring_emit_reg_wait,

	.emit_reg_write_reg_wait = amdgpu_ring_emit_reg_write_reg_wait_helper,

};



static void sdma_v4_0_set_ring_funcs(struct amdgpu_device *adev)