RE: [PATCH 5/5] drm/amd/sriov skip vcn powergating and dec_ring_test
Reviewed-by: Leo Liu -Original Message- From: Jack Zhang Sent: July 15, 2020 1:50 AM To: amd-gfx@lists.freedesktop.org Cc: Zhang, Jack (Jian) ; Zhang, Hawking ; Liu, Leo Subject: [PATCH 5/5] drm/amd/sriov skip vcn powergating and dec_ring_test 1.Skip decode_ring test in VF, because VCN in SRIOV does not support direct register read/write. 2.Skip powergating configuration in hw fini because VCN3.0 SRIOV doesn't support powergating. V2: delete unneccessary white lines and refine implementation. Signed-off-by: Jack Zhang --- drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c | 4 drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c | 21 - 2 files changed, 20 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c index 15ff30c53e24..92a55e40bc48 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c @@ -421,6 +421,10 @@ int amdgpu_vcn_dec_ring_test_ring(struct amdgpu_ring *ring) unsigned i; int r; + /* VCN in SRIOV does not support direct register read/write */ + if (amdgpu_sriov_vf(adev)) + return 0; + WREG32(adev->vcn.inst[ring->me].external.scratch9, 0xCAFEDEAD); r = amdgpu_ring_alloc(ring, 3); if (r) diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c index 0a0ca10bf55b..910a4a32ff78 100644 --- a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c +++ b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c @@ -354,11 +354,13 @@ static int vcn_v3_0_hw_fini(void *handle) ring = &adev->vcn.inst[i].ring_dec; - if ((adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) || - (adev->vcn.cur_state != AMD_PG_STATE_GATE && - RREG32_SOC15(VCN, i, mmUVD_STATUS))) - vcn_v3_0_set_powergating_state(adev, AMD_PG_STATE_GATE); - + if (!amdgpu_sriov_vf(adev)) { + if ((adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) || + (adev->vcn.cur_state != AMD_PG_STATE_GATE && +RREG32_SOC15(VCN, i, mmUVD_STATUS))) { + vcn_v3_0_set_powergating_state(adev, AMD_PG_STATE_GATE); + } + } ring->sched.ready = false; for (j = 0; j < adev->vcn.num_enc_rings; ++j) { @@ -1861,6 +1863,15 @@ static int vcn_v3_0_set_powergating_state(void *handle, struct amdgpu_device *adev = (struct amdgpu_device *)handle; int ret; + /* for SRIOV, guest should not control VCN Power-gating +* MMSCH FW should control Power-gating and clock-gating +* guest should avoid touching CGC and PG +*/ + if (amdgpu_sriov_vf(adev)) { + adev->vcn.cur_state = AMD_PG_STATE_UNGATE; + return 0; + } + if(state == adev->vcn.cur_state) return 0; -- 2.17.1 ___ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx
[PATCH 5/5] drm/amd/sriov skip vcn powergating and dec_ring_test
1.Skip decode_ring test in VF, because VCN in SRIOV does not support direct register read/write. 2.Skip powergating configuration in hw fini because VCN3.0 SRIOV doesn't support powergating. V2: delete unneccessary white lines and refine implementation. Signed-off-by: Jack Zhang --- drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c | 4 drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c | 21 - 2 files changed, 20 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c index 15ff30c53e24..92a55e40bc48 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c @@ -421,6 +421,10 @@ int amdgpu_vcn_dec_ring_test_ring(struct amdgpu_ring *ring) unsigned i; int r; + /* VCN in SRIOV does not support direct register read/write */ + if (amdgpu_sriov_vf(adev)) + return 0; + WREG32(adev->vcn.inst[ring->me].external.scratch9, 0xCAFEDEAD); r = amdgpu_ring_alloc(ring, 3); if (r) diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c index 0a0ca10bf55b..910a4a32ff78 100644 --- a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c +++ b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c @@ -354,11 +354,13 @@ static int vcn_v3_0_hw_fini(void *handle) ring = &adev->vcn.inst[i].ring_dec; - if ((adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) || - (adev->vcn.cur_state != AMD_PG_STATE_GATE && - RREG32_SOC15(VCN, i, mmUVD_STATUS))) - vcn_v3_0_set_powergating_state(adev, AMD_PG_STATE_GATE); - + if (!amdgpu_sriov_vf(adev)) { + if ((adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) || + (adev->vcn.cur_state != AMD_PG_STATE_GATE && +RREG32_SOC15(VCN, i, mmUVD_STATUS))) { + vcn_v3_0_set_powergating_state(adev, AMD_PG_STATE_GATE); + } + } ring->sched.ready = false; for (j = 0; j < adev->vcn.num_enc_rings; ++j) { @@ -1861,6 +1863,15 @@ static int vcn_v3_0_set_powergating_state(void *handle, struct amdgpu_device *adev = (struct amdgpu_device *)handle; int ret; + /* for SRIOV, guest should not control VCN Power-gating +* MMSCH FW should control Power-gating and clock-gating +* guest should avoid touching CGC and PG +*/ + if (amdgpu_sriov_vf(adev)) { + adev->vcn.cur_state = AMD_PG_STATE_UNGATE; + return 0; + } + if(state == adev->vcn.cur_state) return 0; -- 2.17.1 ___ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx
Re: [PATCH 5/5] drm/amd/sriov skip vcn powergating and dec_ring_test
On 2020-07-13 10:47 p.m., Jack Zhang wrote: 1.Skip decode_ring test in VF, because VCN in SRIOV does not support direct register read/write. 2.Skip powergating configuration in hw fini because VCN3.0 SRIOV doesn't support powergating. Signed-off-by: Jack Zhang --- drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c | 4 drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c | 17 +++-- 2 files changed, 19 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c index 15ff30c53e24..92a55e40bc48 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c @@ -421,6 +421,10 @@ int amdgpu_vcn_dec_ring_test_ring(struct amdgpu_ring *ring) unsigned i; int r; + /* VCN in SRIOV does not support direct register read/write */ + if (amdgpu_sriov_vf(adev)) + return 0; + WREG32(adev->vcn.inst[ring->me].external.scratch9, 0xCAFEDEAD); r = amdgpu_ring_alloc(ring, 3); if (r) diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c index 0a0ca10bf55b..8e5de9ed64f3 100644 --- a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c +++ b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c @@ -354,10 +354,13 @@ static int vcn_v3_0_hw_fini(void *handle) ring = &adev->vcn.inst[i].ring_dec; - if ((adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) || + if (amdgpu_sriov_vf(adev)) { + /* for SRIOV, VM does not control PG state */ + } It looks odd to me that only comments inside the bracket. Can you combine it to the "else if" line? else if ((adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) || (adev->vcn.cur_state != AMD_PG_STATE_GATE && - RREG32_SOC15(VCN, i, mmUVD_STATUS))) + RREG32_SOC15(VCN, i, mmUVD_STATUS))) { vcn_v3_0_set_powergating_state(adev, AMD_PG_STATE_GATE); + } ring->sched.ready = false; @@ -1208,6 +1211,7 @@ static int vcn_v3_0_start(struct amdgpu_device *adev) return 0; } + Why do you add an empty line here? Regards, Leo static int vcn_v3_0_start_sriov(struct amdgpu_device *adev) { int i, j; @@ -1861,6 +1865,15 @@ static int vcn_v3_0_set_powergating_state(void *handle, struct amdgpu_device *adev = (struct amdgpu_device *)handle; int ret; + /* for SRIOV, guest should not control VCN Power-gating +* MMSCH FW should control Power-gating and clock-gating +* guest should avoid touching CGC and PG +*/ + if (amdgpu_sriov_vf(adev)) { + adev->vcn.cur_state = AMD_PG_STATE_UNGATE; + return 0; + } + if(state == adev->vcn.cur_state) return 0; ___ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx
[PATCH 5/5] drm/amd/sriov skip vcn powergating and dec_ring_test
1.Skip decode_ring test in VF, because VCN in SRIOV does not support direct register read/write. 2.Skip powergating configuration in hw fini because VCN3.0 SRIOV doesn't support powergating. Signed-off-by: Jack Zhang --- drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c | 4 drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c | 17 +++-- 2 files changed, 19 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c index 15ff30c53e24..92a55e40bc48 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c @@ -421,6 +421,10 @@ int amdgpu_vcn_dec_ring_test_ring(struct amdgpu_ring *ring) unsigned i; int r; + /* VCN in SRIOV does not support direct register read/write */ + if (amdgpu_sriov_vf(adev)) + return 0; + WREG32(adev->vcn.inst[ring->me].external.scratch9, 0xCAFEDEAD); r = amdgpu_ring_alloc(ring, 3); if (r) diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c index 0a0ca10bf55b..8e5de9ed64f3 100644 --- a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c +++ b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c @@ -354,10 +354,13 @@ static int vcn_v3_0_hw_fini(void *handle) ring = &adev->vcn.inst[i].ring_dec; - if ((adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) || + if (amdgpu_sriov_vf(adev)) { + /* for SRIOV, VM does not control PG state */ + } else if ((adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) || (adev->vcn.cur_state != AMD_PG_STATE_GATE && - RREG32_SOC15(VCN, i, mmUVD_STATUS))) + RREG32_SOC15(VCN, i, mmUVD_STATUS))) { vcn_v3_0_set_powergating_state(adev, AMD_PG_STATE_GATE); + } ring->sched.ready = false; @@ -1208,6 +1211,7 @@ static int vcn_v3_0_start(struct amdgpu_device *adev) return 0; } + static int vcn_v3_0_start_sriov(struct amdgpu_device *adev) { int i, j; @@ -1861,6 +1865,15 @@ static int vcn_v3_0_set_powergating_state(void *handle, struct amdgpu_device *adev = (struct amdgpu_device *)handle; int ret; + /* for SRIOV, guest should not control VCN Power-gating +* MMSCH FW should control Power-gating and clock-gating +* guest should avoid touching CGC and PG +*/ + if (amdgpu_sriov_vf(adev)) { + adev->vcn.cur_state = AMD_PG_STATE_UNGATE; + return 0; + } + if(state == adev->vcn.cur_state) return 0; -- 2.17.1 ___ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx