diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2026-01-26 23:44:45 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2026-01-28 16:35:00 -0500 |
| commit | b1defcdc4457649db236415ee618a7151e28788c (patch) | |
| tree | b4c1b1e04f1950e0f12e8a4b7ecc83d0f0972dad /drivers/gpu | |
| parent | e7fbff9e7622a00c2b53cb14df481916f0019742 (diff) | |
drm/amdgpu: Fix cond_exec handling in amdgpu_ib_schedule()
The EXEC_COUNT field must be > 0. In the gfx shadow
handling we always emit a cond_exec packet after the gfx_shadow
packet, but the EXEC_COUNT never gets patched. This leads
to a hang when we try and reset queues on gfx11 APUs.
Fixes: c68cbbfd54c6 ("drm/amdgpu: cleanup conditional execution")
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4789
Reviewed-by: Jesse Zhang <Jesse.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit ba205ac3d6e83f56c4f824f23f1b4522cb844ff3)
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c index 72ec455fa932..44f230d67da2 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c @@ -235,7 +235,7 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned int num_ibs, amdgpu_ring_ib_begin(ring); - if (ring->funcs->emit_gfx_shadow) + if (ring->funcs->emit_gfx_shadow && adev->gfx.cp_gfx_shadow) amdgpu_ring_emit_gfx_shadow(ring, shadow_va, csa_va, gds_va, init_shadow, vmid); @@ -291,7 +291,8 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned int num_ibs, fence_flags | AMDGPU_FENCE_FLAG_64BIT); } - if (ring->funcs->emit_gfx_shadow && ring->funcs->init_cond_exec) { + if (ring->funcs->emit_gfx_shadow && ring->funcs->init_cond_exec && + adev->gfx.cp_gfx_shadow) { amdgpu_ring_emit_gfx_shadow(ring, 0, 0, 0, false, 0); amdgpu_ring_init_cond_exec(ring, ring->cond_exe_gpu_addr); } |