/**
* uvd_v5_0_hw_init - start and test UVD block
*
* @adev: amdgpu_device pointer
*
* Initialize the hardware, boot up the VCPU and do some testing
*/
static int uvd_v5_0_hw_init(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
struct amdgpu_ring *ring = &adev->uvd.ring;
uint32_t tmp;
int r;
/* raise clocks while booting up the VCPU */
amdgpu_asic_set_uvd_clocks(adev, 53300, 40000);
r = uvd_v5_0_start(adev);
if (r)
goto done;
ring->ready = true;
r = amdgpu_ring_test_ring(ring);
if (r) {
ring->ready = false;
goto done;
}
r = amdgpu_ring_alloc(ring, 10);
if (r) {
DRM_ERROR("amdgpu: ring failed to lock UVD ring (%d).\n", r);
goto done;
}
tmp = PACKET0(mmUVD_SEMA_WAIT_FAULT_TIMEOUT_CNTL, 0);
amdgpu_ring_write(ring, tmp);
amdgpu_ring_write(ring, 0xFFFFF);
tmp = PACKET0(mmUVD_SEMA_WAIT_INCOMPLETE_TIMEOUT_CNTL, 0);
amdgpu_ring_write(ring, tmp);
amdgpu_ring_write(ring, 0xFFFFF);
tmp = PACKET0(mmUVD_SEMA_SIGNAL_INCOMPLETE_TIMEOUT_CNTL, 0);
amdgpu_ring_write(ring, tmp);
amdgpu_ring_write(ring, 0xFFFFF);
/* Clear timeout status bits */
amdgpu_ring_write(ring, PACKET0(mmUVD_SEMA_TIMEOUT_STATUS, 0));
amdgpu_ring_write(ring, 0x8);
amdgpu_ring_write(ring, PACKET0(mmUVD_SEMA_CNTL, 0));
amdgpu_ring_write(ring, 3);
amdgpu_ring_commit(ring);
done:
/* lower clocks again */
amdgpu_asic_set_uvd_clocks(adev, 0, 0);
if (!r)
DRM_INFO("UVD initialized successfully.\n");
return r;
}
static int uvd_v5_0_soft_reset(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
uvd_v5_0_stop(adev);
WREG32_P(mmSRBM_SOFT_RESET, SRBM_SOFT_RESET__SOFT_RESET_UVD_MASK,
~SRBM_SOFT_RESET__SOFT_RESET_UVD_MASK);
mdelay(5);
return uvd_v5_0_start(adev);
}
static int uvd_v5_0_set_powergating_state(void *handle,
enum amd_powergating_state state)
{
/* This doesn't actually powergate the UVD block.
* That's done in the dpm code via the SMC. This
* just re-inits the block as necessary. The actual
* gating still happens in the dpm code. We should
* revisit this when there is a cleaner line between
* the smc and the hw blocks
*/
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
if (!(adev->pg_flags & AMD_PG_SUPPORT_UVD))
return 0;
if (state == AMD_PG_STATE_GATE) {
uvd_v5_0_stop(adev);
return 0;
} else {
return uvd_v5_0_start(adev);
}
}