6.6-stable review patch. If anyone has any objections, please let me know.
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From: Yifan Zha Yifan.Zha@amd.com
commit 80d8a9ad1587b64c545d515ab6cb7ecb9908e1b3 upstream.
[Why] Accoreding to CP updated to RS64 on gfx11, WRITE_DATA with PREEMPTION_META_MEMORY(dst_sel=8) is illegal for CP FW. That packet is used for MCBP on F32 based system. So it would lead to incorrect GRBM write and FW is not handling that extra case correctly.
[How] With gfx11 rs64 enabled, skip emit de meta data.
Signed-off-by: Yifan Zha Yifan.Zha@amd.com Acked-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com (cherry picked from commit 8366cd442d226463e673bed5d199df916f4ecbcf) Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c @@ -5296,9 +5296,9 @@ static void gfx_v11_0_ring_emit_ib_gfx(s if (flags & AMDGPU_IB_PREEMPTED) control |= INDIRECT_BUFFER_PRE_RESUME(1);
- if (vmid) + if (vmid && !ring->adev->gfx.rs64_enable) gfx_v11_0_ring_emit_de_meta(ring, - (!amdgpu_sriov_vf(ring->adev) && flags & AMDGPU_IB_PREEMPTED) ? true : false); + !amdgpu_sriov_vf(ring->adev) && (flags & AMDGPU_IB_PREEMPTED)); }
if (ring->is_mes_queue)