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| author |   Veerabadhran G <vegopala@amd.com> | 2020-10-08 22:30:02 +0530 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2020-10-14 15:27:50 -0400 |
| commit | 187561dd76531945126b15c9486fec7cfa5f0415 (patch) | |
| tree | f751882b66db5ced0a2d705e62453e28e42b7e2a /drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c | |
| parent | drm/amd/pm: increase mclk switch threshold to 200 us (diff) | |
| download | linux-dev-187561dd76531945126b15c9486fec7cfa5f0415.tar.xz linux-dev-187561dd76531945126b15c9486fec7cfa5f0415.zip | |
drm/amdgpu: vcn and jpeg ring synchronization
Synchronize the ring usage for vcn1 and jpeg1 to workaround a hardware bug.
Signed-off-by: Veerabadhran Gopalakrishnan <veerabadhran.gopalakrishnan@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c | 28 |
1 files changed, 24 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c index 73699eafb51e..86e1ef732ebe 100644 --- a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c +++ b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c @@ -54,6 +54,7 @@ static int vcn_v1_0_pause_dpg_mode(struct amdgpu_device *adev, int inst_idx, struct dpg_pause_state *new_state); static void vcn_v1_0_idle_work_handler(struct work_struct *work); +static void vcn_v1_0_ring_begin_use(struct amdgpu_ring *ring); /** * vcn_v1_0_early_init - set function pointers @@ -1804,11 +1805,24 @@ static void vcn_v1_0_idle_work_handler(struct work_struct *work) } } -void vcn_v1_0_ring_begin_use(struct amdgpu_ring *ring) +static void vcn_v1_0_ring_begin_use(struct amdgpu_ring *ring) { - struct amdgpu_device *adev = ring->adev; + struct amdgpu_device *adev = ring->adev; bool set_clocks = !cancel_delayed_work_sync(&adev->vcn.idle_work); + mutex_lock(&adev->vcn.vcn1_jpeg1_workaround); + + if (amdgpu_fence_wait_empty(&ring->adev->jpeg.inst->ring_dec)) + DRM_ERROR("VCN dec: jpeg dec ring may not be empty\n"); + + vcn_v1_0_set_pg_for_begin_use(ring, set_clocks); + +} + +void vcn_v1_0_set_pg_for_begin_use(struct amdgpu_ring *ring, bool set_clocks) +{ + struct amdgpu_device *adev = ring->adev; + if (set_clocks) { amdgpu_gfx_off_ctrl(adev, false); if (adev->pm.dpm_enabled) @@ -1844,6 +1858,12 @@ void vcn_v1_0_ring_begin_use(struct amdgpu_ring *ring) } } +void vcn_v1_0_ring_end_use(struct amdgpu_ring *ring) +{ + schedule_delayed_work(&ring->adev->vcn.idle_work, VCN_IDLE_TIMEOUT); + mutex_unlock(&ring->adev->vcn.vcn1_jpeg1_workaround); +} + static const struct amd_ip_funcs vcn_v1_0_ip_funcs = { .name = "vcn_v1_0", .early_init = vcn_v1_0_early_init, @@ -1891,7 +1911,7 @@ static const struct amdgpu_ring_funcs vcn_v1_0_dec_ring_vm_funcs = { .insert_end = vcn_v1_0_dec_ring_insert_end, .pad_ib = amdgpu_ring_generic_pad_ib, .begin_use = vcn_v1_0_ring_begin_use, - .end_use = amdgpu_vcn_ring_end_use, + .end_use = vcn_v1_0_ring_end_use, .emit_wreg = vcn_v1_0_dec_ring_emit_wreg, .emit_reg_wait = vcn_v1_0_dec_ring_emit_reg_wait, .emit_reg_write_reg_wait = amdgpu_ring_emit_reg_write_reg_wait_helper, @@ -1923,7 +1943,7 @@ static const struct amdgpu_ring_funcs vcn_v1_0_enc_ring_vm_funcs = { .insert_end = vcn_v1_0_enc_ring_insert_end, .pad_ib = amdgpu_ring_generic_pad_ib, .begin_use = vcn_v1_0_ring_begin_use, - .end_use = amdgpu_vcn_ring_end_use, + .end_use = vcn_v1_0_ring_end_use, .emit_wreg = vcn_v1_0_enc_ring_emit_wreg, .emit_reg_wait = vcn_v1_0_enc_ring_emit_reg_wait, .emit_reg_write_reg_wait = amdgpu_ring_emit_reg_write_reg_wait_helper, |