drm/amdgpu: Assign correct bits for SDMA HDP flush
authorLijo Lazar <lijo.lazar@amd.com>
Wed, 10 Apr 2024 14:00:46 +0000 (19:30 +0530)
committerAlex Deucher <alexander.deucher@amd.com>
Tue, 23 Apr 2024 16:08:30 +0000 (12:08 -0400)
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>
drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c

index 7bb0652..2090984 100644 (file)
@@ -368,7 +368,8 @@ static void sdma_v4_4_2_ring_emit_hdp_flush(struct amdgpu_ring *ring)
        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),