Alex Deucher 10ed3c3190 drm/amdgpu/gfx9: 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 the gfx ring stall fix Reviewed-by: Huang Rui <ray.huang@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Emily Deng <Emily.Deng@amd.com>		2018-05-15 13:43:13 -05:00
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amdgpu	drm/amdgpu/gfx9: add emit_reg_write_reg_wait ring callback (v2)	2018-05-15 13:43:13 -05:00
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