6.8-stable review patch. If anyone has any objections, please let me know.
------------------
From: Lijo Lazar lijo.lazar@amd.com
commit aebd3eb9d3ae017e6260043f6bcace2f5ef60694 upstream.
HDP Flush request bit can be kept unique per AID, and doesn't need to be unique SOC-wide. Assign only bits 10-13 for SDMA v4.4.2.
Signed-off-by: Lijo Lazar lijo.lazar@amd.com Acked-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c @@ -366,7 +366,8 @@ static void sdma_v4_4_2_ring_emit_hdp_fl u32 ref_and_mask = 0; const struct nbio_hdp_flush_reg *nbio_hf_reg = adev->nbio.hdp_flush_reg;
- ref_and_mask = nbio_hf_reg->ref_and_mask_sdma0 << ring->me; + ref_and_mask = nbio_hf_reg->ref_and_mask_sdma0 + << (ring->me % adev->sdma.num_inst_per_aid);
sdma_v4_4_2_wait_reg_mem(ring, 0, 1, adev->nbio.funcs->get_hdp_flush_done_offset(adev),