From 2c7e78355beca9f20d6e30088d581acd300aae04 Mon Sep 17 00:00:00 2001 From: Evan Quan Date: Thu, 25 Apr 2019 15:35:17 +0800 Subject: [PATCH] drm/amdgpu: expose VCE 4.0 powergate interface SMU will use this interface to power down the VCE engine. Signed-off-by: Evan Quan Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/vce_v4_0.c | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/vce_v4_0.c b/drivers/gpu/drm/amd/amdgpu/vce_v4_0.c index aadc3e66ebd7..f3f5938430d4 100644 --- a/drivers/gpu/drm/amd/amdgpu/vce_v4_0.c +++ b/drivers/gpu/drm/amd/amdgpu/vce_v4_0.c @@ -382,6 +382,7 @@ static int vce_v4_0_start(struct amdgpu_device *adev) static int vce_v4_0_stop(struct amdgpu_device *adev) { + /* Disable VCPU */ WREG32_P(SOC15_REG_OFFSET(VCE, 0, mmVCE_VCPU_CNTL), 0, ~0x200001); /* hold on ECPU */ @@ -389,8 +390,8 @@ static int vce_v4_0_stop(struct amdgpu_device *adev) VCE_SOFT_RESET__ECPU_SOFT_RESET_MASK, ~VCE_SOFT_RESET__ECPU_SOFT_RESET_MASK); - /* clear BUSY flag */ - WREG32_P(SOC15_REG_OFFSET(VCE, 0, mmVCE_STATUS), 0, ~VCE_STATUS__JOB_BUSY_MASK); + /* clear VCE_STATUS */ + WREG32(SOC15_REG_OFFSET(VCE, 0, mmVCE_STATUS), 0); /* Set Clock-Gating off */ /* if (adev->cg_flags & AMD_CG_SUPPORT_VCE_MGCG) @@ -922,6 +923,7 @@ static int vce_v4_0_set_clockgating_state(void *handle, return 0; } +#endif static int vce_v4_0_set_powergating_state(void *handle, enum amd_powergating_state state) @@ -935,16 +937,11 @@ static int vce_v4_0_set_powergating_state(void *handle, */ struct amdgpu_device *adev = (struct amdgpu_device *)handle; - if (!(adev->pg_flags & AMD_PG_SUPPORT_VCE)) - return 0; - if (state == AMD_PG_STATE_GATE) - /* XXX do we need a vce_v4_0_stop()? */ - return 0; + return vce_v4_0_stop(adev); else return vce_v4_0_start(adev); } -#endif static void vce_v4_0_ring_emit_ib(struct amdgpu_ring *ring, struct amdgpu_job *job, struct amdgpu_ib *ib, uint32_t flags) @@ -1059,7 +1056,7 @@ const struct amd_ip_funcs vce_v4_0_ip_funcs = { .soft_reset = NULL /* vce_v4_0_soft_reset */, .post_soft_reset = NULL /* vce_v4_0_post_soft_reset */, .set_clockgating_state = vce_v4_0_set_clockgating_state, - .set_powergating_state = NULL /* vce_v4_0_set_powergating_state */, + .set_powergating_state = vce_v4_0_set_powergating_state, }; static const struct amdgpu_ring_funcs vce_v4_0_ring_vm_funcs = { -- 2.30.2