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drm/amdgpu: add vcn decode ring support

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Add the decode ring init.

Signed-off-by: Leo Liu <leo.liu@amd.com>
Acked-by: Chunming Zhou <david1.zhou@amd.com>
Acked-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Leo Liu 2016-12-28 12:16:48 -05:00 committed by Alex Deucher
parent 88b5af70e2
commit a4bf608be5
1 changed files with 43 additions and 0 deletions
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43
drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
View file

@ -59,6 +59,7 @@ static int vcn_v1_0_early_init(void *handle)
*/
static int vcn_v1_0_sw_init(void *handle)
{
struct amdgpu_ring *ring;
int r;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
@ -75,6 +76,10 @@ static int vcn_v1_0_sw_init(void *handle)
if (r)
return r;
ring = &adev->vcn.ring_dec;
sprintf(ring->name, "vcn_dec");
r = amdgpu_ring_init(adev, ring, 512, &adev->vcn.irq, 0);
return r;
}
@ -246,6 +251,8 @@ static void vcn_v1_0_mc_resume(struct amdgpu_device *adev)
*/
static int vcn_v1_0_start(struct amdgpu_device *adev)
{
struct amdgpu_ring *ring = &adev->vcn.ring_dec;
uint32_t rb_bufsz, tmp;
uint32_t lmi_swap_cntl;
int i, j, r;
@ -356,6 +363,39 @@ static int vcn_v1_0_start(struct amdgpu_device *adev)
WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_STATUS), 0,
~(2 << UVD_STATUS__VCPU_REPORT__SHIFT));
/* force RBC into idle state */
rb_bufsz = order_base_2(ring->ring_size);
tmp = REG_SET_FIELD(0, UVD_RBC_RB_CNTL, RB_BUFSZ, rb_bufsz);
tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_BLKSZ, 1);
tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_FETCH, 1);
tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_WPTR_POLL_EN, 0);
tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_UPDATE, 1);
tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_RPTR_WR_EN, 1);
WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_CNTL), tmp);
/* set the write pointer delay */
WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_WPTR_CNTL), 0);
/* set the wb address */
WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_RPTR_ADDR),
(upper_32_bits(ring->gpu_addr) >> 2));
/* programm the RB_BASE for ring buffer */
WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_RBC_RB_64BIT_BAR_LOW),
lower_32_bits(ring->gpu_addr));
WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_RBC_RB_64BIT_BAR_HIGH),
upper_32_bits(ring->gpu_addr));
/* Initialize the ring buffer's read and write pointers */
WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_RPTR), 0);
ring->wptr = RREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_RPTR));
WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_WPTR),
lower_32_bits(ring->wptr));
WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_CNTL), 0,
~UVD_RBC_RB_CNTL__RB_NO_FETCH_MASK);
return 0;
}
@ -368,6 +408,9 @@ static int vcn_v1_0_start(struct amdgpu_device *adev)
*/
static int vcn_v1_0_stop(struct amdgpu_device *adev)
{
/* force RBC into idle state */
WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_CNTL), 0x11010101);
/* Stall UMC and register bus before resetting VCPU */
WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_CTRL2),
UVD_LMI_CTRL2__STALL_ARB_UMC_MASK,