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drm/amd/amdgpu: Add SW clock gating support to UVD 5 and 6

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This patch adds support for software clock gating to UVD 5
and UVD 6 blocks with a preliminary commented out hardware
gating routine.

Currently hardware gating does not work so it's not activated.

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Tom St Denis 2016-03-23 13:14:31 -04:00 committed by Alex Deucher
parent b2c0cbd657
commit be3ecca7fe
2 changed files with 232 additions and 164 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

115
drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c
View File

@ -31,6 +31,7 @@
#include "uvd/uvd_5_0_sh_mask.h"
#include "oss/oss_2_0_d.h"
#include "oss/oss_2_0_sh_mask.h"
#include "vi.h"
static void uvd_v5_0_set_ring_funcs(struct amdgpu_device *adev);
static void uvd_v5_0_set_irq_funcs(struct amdgpu_device *adev);
@ -754,14 +755,128 @@ static int uvd_v5_0_process_interrupt(struct amdgpu_device *adev,
return 0;
}
static void uvd_v5_0_set_sw_clock_gating(struct amdgpu_device *adev)
{
uint32_t data, data1, data2, suvd_flags;
data = RREG32(mmUVD_CGC_CTRL);
data1 = RREG32(mmUVD_SUVD_CGC_GATE);
data2 = RREG32(mmUVD_SUVD_CGC_CTRL);
data &= ~(UVD_CGC_CTRL__CLK_OFF_DELAY_MASK |
UVD_CGC_CTRL__CLK_GATE_DLY_TIMER_MASK);
suvd_flags = UVD_SUVD_CGC_GATE__SRE_MASK |
UVD_SUVD_CGC_GATE__SIT_MASK |
UVD_SUVD_CGC_GATE__SMP_MASK |
UVD_SUVD_CGC_GATE__SCM_MASK |
UVD_SUVD_CGC_GATE__SDB_MASK;
data |= UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK |
(1 << REG_FIELD_SHIFT(UVD_CGC_CTRL, CLK_GATE_DLY_TIMER)) |
(4 << REG_FIELD_SHIFT(UVD_CGC_CTRL, CLK_OFF_DELAY));
data &= ~(UVD_CGC_CTRL__UDEC_RE_MODE_MASK |
UVD_CGC_CTRL__UDEC_CM_MODE_MASK |
UVD_CGC_CTRL__UDEC_IT_MODE_MASK |
UVD_CGC_CTRL__UDEC_DB_MODE_MASK |
UVD_CGC_CTRL__UDEC_MP_MODE_MASK |
UVD_CGC_CTRL__SYS_MODE_MASK |
UVD_CGC_CTRL__UDEC_MODE_MASK |
UVD_CGC_CTRL__MPEG2_MODE_MASK |
UVD_CGC_CTRL__REGS_MODE_MASK |
UVD_CGC_CTRL__RBC_MODE_MASK |
UVD_CGC_CTRL__LMI_MC_MODE_MASK |
UVD_CGC_CTRL__LMI_UMC_MODE_MASK |
UVD_CGC_CTRL__IDCT_MODE_MASK |
UVD_CGC_CTRL__MPRD_MODE_MASK |
UVD_CGC_CTRL__MPC_MODE_MASK |
UVD_CGC_CTRL__LBSI_MODE_MASK |
UVD_CGC_CTRL__LRBBM_MODE_MASK |
UVD_CGC_CTRL__WCB_MODE_MASK |
UVD_CGC_CTRL__VCPU_MODE_MASK |
UVD_CGC_CTRL__JPEG_MODE_MASK |
UVD_CGC_CTRL__SCPU_MODE_MASK);
data2 &= ~(UVD_SUVD_CGC_CTRL__SRE_MODE_MASK |
UVD_SUVD_CGC_CTRL__SIT_MODE_MASK |
UVD_SUVD_CGC_CTRL__SMP_MODE_MASK |
UVD_SUVD_CGC_CTRL__SCM_MODE_MASK |
UVD_SUVD_CGC_CTRL__SDB_MODE_MASK);
data1 |= suvd_flags;
WREG32(mmUVD_CGC_CTRL, data);
WREG32(mmUVD_CGC_GATE, 0);
WREG32(mmUVD_SUVD_CGC_GATE, data1);
WREG32(mmUVD_SUVD_CGC_CTRL, data2);
}
#if 0
static void uvd_v5_0_set_hw_clock_gating(struct amdgpu_device *adev)
{
uint32_t data, data1, cgc_flags, suvd_flags;
data = RREG32(mmUVD_CGC_GATE);
data1 = RREG32(mmUVD_SUVD_CGC_GATE);
cgc_flags = UVD_CGC_GATE__SYS_MASK |
UVD_CGC_GATE__UDEC_MASK |
UVD_CGC_GATE__MPEG2_MASK |
UVD_CGC_GATE__RBC_MASK |
UVD_CGC_GATE__LMI_MC_MASK |
UVD_CGC_GATE__IDCT_MASK |
UVD_CGC_GATE__MPRD_MASK |
UVD_CGC_GATE__MPC_MASK |
UVD_CGC_GATE__LBSI_MASK |
UVD_CGC_GATE__LRBBM_MASK |
UVD_CGC_GATE__UDEC_RE_MASK |
UVD_CGC_GATE__UDEC_CM_MASK |
UVD_CGC_GATE__UDEC_IT_MASK |
UVD_CGC_GATE__UDEC_DB_MASK |
UVD_CGC_GATE__UDEC_MP_MASK |
UVD_CGC_GATE__WCB_MASK |
UVD_CGC_GATE__VCPU_MASK |
UVD_CGC_GATE__SCPU_MASK;
suvd_flags = UVD_SUVD_CGC_GATE__SRE_MASK |
UVD_SUVD_CGC_GATE__SIT_MASK |
UVD_SUVD_CGC_GATE__SMP_MASK |
UVD_SUVD_CGC_GATE__SCM_MASK |
UVD_SUVD_CGC_GATE__SDB_MASK;
data |= cgc_flags;
data1 |= suvd_flags;
WREG32(mmUVD_CGC_GATE, data);
WREG32(mmUVD_SUVD_CGC_GATE, data1);
}
#endif
static int uvd_v5_0_set_clockgating_state(void *handle,
enum amd_clockgating_state state)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
bool enable = (state == AMD_CG_STATE_GATE) ? true : false;
static int curstate = -1;
if (!(adev->cg_flags & AMD_CG_SUPPORT_UVD_MGCG))
return 0;
if (curstate == state)
return 0;
curstate = state;
if (enable) {
/* disable HW gating and enable Sw gating */
uvd_v5_0_set_sw_clock_gating(adev);
} else {
/* wait for STATUS to clear */
if (uvd_v5_0_wait_for_idle(handle))
return -EBUSY;
/* enable HW gates because UVD is idle */
/* uvd_v5_0_set_hw_clock_gating(adev); */
}
return 0;
}

281
drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
View File

@ -31,11 +31,13 @@
#include "uvd/uvd_6_0_sh_mask.h"
#include "oss/oss_2_0_d.h"
#include "oss/oss_2_0_sh_mask.h"
#include "vi.h"
static void uvd_v6_0_set_ring_funcs(struct amdgpu_device *adev);
static void uvd_v6_0_set_irq_funcs(struct amdgpu_device *adev);
static int uvd_v6_0_start(struct amdgpu_device *adev);
static void uvd_v6_0_stop(struct amdgpu_device *adev);
static void uvd_v6_0_set_sw_clock_gating(struct amdgpu_device *adev);
/**
* uvd_v6_0_ring_get_rptr - get read pointer
@ -284,6 +286,7 @@ static void uvd_v6_0_mc_resume(struct amdgpu_device *adev)
WREG32(mmUVD_UDEC_DBW_ADDR_CONFIG, adev->gfx.config.gb_addr_config);
}
#if 0
static void cz_set_uvd_clock_gating_branches(struct amdgpu_device *adev,
bool enable)
{
@ -360,157 +363,7 @@ static void cz_set_uvd_clock_gating_branches(struct amdgpu_device *adev,
WREG32(mmUVD_CGC_GATE, data);
WREG32(mmUVD_SUVD_CGC_GATE, data1);
}
static void tonga_set_uvd_clock_gating_branches(struct amdgpu_device *adev,
bool enable)
{
u32 data, data1;
data = RREG32(mmUVD_CGC_GATE);
data1 = RREG32(mmUVD_SUVD_CGC_GATE);
if (enable) {
data |= UVD_CGC_GATE__SYS_MASK |
UVD_CGC_GATE__UDEC_MASK |
UVD_CGC_GATE__MPEG2_MASK |
UVD_CGC_GATE__RBC_MASK |
UVD_CGC_GATE__LMI_MC_MASK |
UVD_CGC_GATE__IDCT_MASK |
UVD_CGC_GATE__MPRD_MASK |
UVD_CGC_GATE__MPC_MASK |
UVD_CGC_GATE__LBSI_MASK |
UVD_CGC_GATE__LRBBM_MASK |
UVD_CGC_GATE__UDEC_RE_MASK |
UVD_CGC_GATE__UDEC_CM_MASK |
UVD_CGC_GATE__UDEC_IT_MASK |
UVD_CGC_GATE__UDEC_DB_MASK |
UVD_CGC_GATE__UDEC_MP_MASK |
UVD_CGC_GATE__WCB_MASK |
UVD_CGC_GATE__VCPU_MASK |
UVD_CGC_GATE__SCPU_MASK;
data1 |= UVD_SUVD_CGC_GATE__SRE_MASK |
UVD_SUVD_CGC_GATE__SIT_MASK |
UVD_SUVD_CGC_GATE__SMP_MASK |
UVD_SUVD_CGC_GATE__SCM_MASK |
UVD_SUVD_CGC_GATE__SDB_MASK;
} else {
data &= ~(UVD_CGC_GATE__SYS_MASK |
UVD_CGC_GATE__UDEC_MASK |
UVD_CGC_GATE__MPEG2_MASK |
UVD_CGC_GATE__RBC_MASK |
UVD_CGC_GATE__LMI_MC_MASK |
UVD_CGC_GATE__LMI_UMC_MASK |
UVD_CGC_GATE__IDCT_MASK |
UVD_CGC_GATE__MPRD_MASK |
UVD_CGC_GATE__MPC_MASK |
UVD_CGC_GATE__LBSI_MASK |
UVD_CGC_GATE__LRBBM_MASK |
UVD_CGC_GATE__UDEC_RE_MASK |
UVD_CGC_GATE__UDEC_CM_MASK |
UVD_CGC_GATE__UDEC_IT_MASK |
UVD_CGC_GATE__UDEC_DB_MASK |
UVD_CGC_GATE__UDEC_MP_MASK |
UVD_CGC_GATE__WCB_MASK |
UVD_CGC_GATE__VCPU_MASK |
UVD_CGC_GATE__SCPU_MASK);
data1 &= ~(UVD_SUVD_CGC_GATE__SRE_MASK |
UVD_SUVD_CGC_GATE__SIT_MASK |
UVD_SUVD_CGC_GATE__SMP_MASK |
UVD_SUVD_CGC_GATE__SCM_MASK |
UVD_SUVD_CGC_GATE__SDB_MASK);
}
WREG32(mmUVD_CGC_GATE, data);
WREG32(mmUVD_SUVD_CGC_GATE, data1);
}
static void uvd_v6_0_set_uvd_dynamic_clock_mode(struct amdgpu_device *adev,
bool swmode)
{
u32 data, data1 = 0, data2;
/* Always un-gate UVD REGS bit */
data = RREG32(mmUVD_CGC_GATE);
data &= ~(UVD_CGC_GATE__REGS_MASK);
WREG32(mmUVD_CGC_GATE, data);
data = RREG32(mmUVD_CGC_CTRL);
data &= ~(UVD_CGC_CTRL__CLK_OFF_DELAY_MASK |
UVD_CGC_CTRL__CLK_GATE_DLY_TIMER_MASK);
data |= UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK |
1 << REG_FIELD_SHIFT(UVD_CGC_CTRL, CLK_GATE_DLY_TIMER) |
4 << REG_FIELD_SHIFT(UVD_CGC_CTRL, CLK_OFF_DELAY);
data2 = RREG32(mmUVD_SUVD_CGC_CTRL);
if (swmode) {
data &= ~(UVD_CGC_CTRL__UDEC_RE_MODE_MASK |
UVD_CGC_CTRL__UDEC_CM_MODE_MASK |
UVD_CGC_CTRL__UDEC_IT_MODE_MASK |
UVD_CGC_CTRL__UDEC_DB_MODE_MASK |
UVD_CGC_CTRL__UDEC_MP_MODE_MASK |
UVD_CGC_CTRL__SYS_MODE_MASK |
UVD_CGC_CTRL__UDEC_MODE_MASK |
UVD_CGC_CTRL__MPEG2_MODE_MASK |
UVD_CGC_CTRL__REGS_MODE_MASK |
UVD_CGC_CTRL__RBC_MODE_MASK |
UVD_CGC_CTRL__LMI_MC_MODE_MASK |
UVD_CGC_CTRL__LMI_UMC_MODE_MASK |
UVD_CGC_CTRL__IDCT_MODE_MASK |
UVD_CGC_CTRL__MPRD_MODE_MASK |
UVD_CGC_CTRL__MPC_MODE_MASK |
UVD_CGC_CTRL__LBSI_MODE_MASK |
UVD_CGC_CTRL__LRBBM_MODE_MASK |
UVD_CGC_CTRL__WCB_MODE_MASK |
UVD_CGC_CTRL__VCPU_MODE_MASK |
UVD_CGC_CTRL__JPEG_MODE_MASK |
UVD_CGC_CTRL__SCPU_MODE_MASK);
data1 |= UVD_CGC_CTRL2__DYN_OCLK_RAMP_EN_MASK |
UVD_CGC_CTRL2__DYN_RCLK_RAMP_EN_MASK;
data1 &= ~UVD_CGC_CTRL2__GATER_DIV_ID_MASK;
data1 |= 7 << REG_FIELD_SHIFT(UVD_CGC_CTRL2, GATER_DIV_ID);
data2 &= ~(UVD_SUVD_CGC_CTRL__SRE_MODE_MASK |
UVD_SUVD_CGC_CTRL__SIT_MODE_MASK |
UVD_SUVD_CGC_CTRL__SMP_MODE_MASK |
UVD_SUVD_CGC_CTRL__SCM_MODE_MASK |
UVD_SUVD_CGC_CTRL__SDB_MODE_MASK);
} else {
data |= UVD_CGC_CTRL__UDEC_RE_MODE_MASK |
UVD_CGC_CTRL__UDEC_CM_MODE_MASK |
UVD_CGC_CTRL__UDEC_IT_MODE_MASK |
UVD_CGC_CTRL__UDEC_DB_MODE_MASK |
UVD_CGC_CTRL__UDEC_MP_MODE_MASK |
UVD_CGC_CTRL__SYS_MODE_MASK |
UVD_CGC_CTRL__UDEC_MODE_MASK |
UVD_CGC_CTRL__MPEG2_MODE_MASK |
UVD_CGC_CTRL__REGS_MODE_MASK |
UVD_CGC_CTRL__RBC_MODE_MASK |
UVD_CGC_CTRL__LMI_MC_MODE_MASK |
UVD_CGC_CTRL__LMI_UMC_MODE_MASK |
UVD_CGC_CTRL__IDCT_MODE_MASK |
UVD_CGC_CTRL__MPRD_MODE_MASK |
UVD_CGC_CTRL__MPC_MODE_MASK |
UVD_CGC_CTRL__LBSI_MODE_MASK |
UVD_CGC_CTRL__LRBBM_MODE_MASK |
UVD_CGC_CTRL__WCB_MODE_MASK |
UVD_CGC_CTRL__VCPU_MODE_MASK |
UVD_CGC_CTRL__SCPU_MODE_MASK;
data2 |= UVD_SUVD_CGC_CTRL__SRE_MODE_MASK |
UVD_SUVD_CGC_CTRL__SIT_MODE_MASK |
UVD_SUVD_CGC_CTRL__SMP_MODE_MASK |
UVD_SUVD_CGC_CTRL__SCM_MODE_MASK |
UVD_SUVD_CGC_CTRL__SDB_MODE_MASK;
}
WREG32(mmUVD_CGC_CTRL, data);
WREG32(mmUVD_SUVD_CGC_CTRL, data2);
data = RREG32_UVD_CTX(ixUVD_CGC_CTRL2);
data &= ~(REG_FIELD_MASK(UVD_CGC_CTRL2, DYN_OCLK_RAMP_EN) |
REG_FIELD_MASK(UVD_CGC_CTRL2, DYN_RCLK_RAMP_EN) |
REG_FIELD_MASK(UVD_CGC_CTRL2, GATER_DIV_ID));
data1 &= (REG_FIELD_MASK(UVD_CGC_CTRL2, DYN_OCLK_RAMP_EN) |
REG_FIELD_MASK(UVD_CGC_CTRL2, DYN_RCLK_RAMP_EN) |
REG_FIELD_MASK(UVD_CGC_CTRL2, GATER_DIV_ID));
data |= data1;
WREG32_UVD_CTX(ixUVD_CGC_CTRL2, data);
}
#endif
/**
* uvd_v6_0_start - start UVD block
@ -538,11 +391,7 @@ static int uvd_v6_0_start(struct amdgpu_device *adev)
/* Set dynamic clock gating in S/W control mode */
if (adev->cg_flags & AMD_CG_SUPPORT_UVD_MGCG) {
if (adev->flags & AMD_IS_APU)
cz_set_uvd_clock_gating_branches(adev, false);
else
tonga_set_uvd_clock_gating_branches(adev, false);
uvd_v6_0_set_uvd_dynamic_clock_mode(adev, true);
uvd_v6_0_set_sw_clock_gating(adev);
} else {
/* disable clock gating */
uint32_t data = RREG32(mmUVD_CGC_CTRL);
@ -978,25 +827,129 @@ static int uvd_v6_0_process_interrupt(struct amdgpu_device *adev,
return 0;
}
static void uvd_v6_0_set_sw_clock_gating(struct amdgpu_device *adev)
{
uint32_t data, data1, data2, suvd_flags;
data = RREG32(mmUVD_CGC_CTRL);
data1 = RREG32(mmUVD_SUVD_CGC_GATE);
data2 = RREG32(mmUVD_SUVD_CGC_CTRL);
data &= ~(UVD_CGC_CTRL__CLK_OFF_DELAY_MASK |
UVD_CGC_CTRL__CLK_GATE_DLY_TIMER_MASK);
suvd_flags = UVD_SUVD_CGC_GATE__SRE_MASK |
UVD_SUVD_CGC_GATE__SIT_MASK |
UVD_SUVD_CGC_GATE__SMP_MASK |
UVD_SUVD_CGC_GATE__SCM_MASK |
UVD_SUVD_CGC_GATE__SDB_MASK;
data |= UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK |
(1 << REG_FIELD_SHIFT(UVD_CGC_CTRL, CLK_GATE_DLY_TIMER)) |
(4 << REG_FIELD_SHIFT(UVD_CGC_CTRL, CLK_OFF_DELAY));
data &= ~(UVD_CGC_CTRL__UDEC_RE_MODE_MASK |
UVD_CGC_CTRL__UDEC_CM_MODE_MASK |
UVD_CGC_CTRL__UDEC_IT_MODE_MASK |
UVD_CGC_CTRL__UDEC_DB_MODE_MASK |
UVD_CGC_CTRL__UDEC_MP_MODE_MASK |
UVD_CGC_CTRL__SYS_MODE_MASK |
UVD_CGC_CTRL__UDEC_MODE_MASK |
UVD_CGC_CTRL__MPEG2_MODE_MASK |
UVD_CGC_CTRL__REGS_MODE_MASK |
UVD_CGC_CTRL__RBC_MODE_MASK |
UVD_CGC_CTRL__LMI_MC_MODE_MASK |
UVD_CGC_CTRL__LMI_UMC_MODE_MASK |
UVD_CGC_CTRL__IDCT_MODE_MASK |
UVD_CGC_CTRL__MPRD_MODE_MASK |
UVD_CGC_CTRL__MPC_MODE_MASK |
UVD_CGC_CTRL__LBSI_MODE_MASK |
UVD_CGC_CTRL__LRBBM_MODE_MASK |
UVD_CGC_CTRL__WCB_MODE_MASK |
UVD_CGC_CTRL__VCPU_MODE_MASK |
UVD_CGC_CTRL__JPEG_MODE_MASK |
UVD_CGC_CTRL__SCPU_MODE_MASK |
UVD_CGC_CTRL__JPEG2_MODE_MASK);
data2 &= ~(UVD_SUVD_CGC_CTRL__SRE_MODE_MASK |
UVD_SUVD_CGC_CTRL__SIT_MODE_MASK |
UVD_SUVD_CGC_CTRL__SMP_MODE_MASK |
UVD_SUVD_CGC_CTRL__SCM_MODE_MASK |
UVD_SUVD_CGC_CTRL__SDB_MODE_MASK);
data1 |= suvd_flags;
WREG32(mmUVD_CGC_CTRL, data);
WREG32(mmUVD_CGC_GATE, 0);
WREG32(mmUVD_SUVD_CGC_GATE, data1);
WREG32(mmUVD_SUVD_CGC_CTRL, data2);
}
#if 0
static void uvd_v6_0_set_hw_clock_gating(struct amdgpu_device *adev)
{
uint32_t data, data1, cgc_flags, suvd_flags;
data = RREG32(mmUVD_CGC_GATE);
data1 = RREG32(mmUVD_SUVD_CGC_GATE);
cgc_flags = UVD_CGC_GATE__SYS_MASK |
UVD_CGC_GATE__UDEC_MASK |
UVD_CGC_GATE__MPEG2_MASK |
UVD_CGC_GATE__RBC_MASK |
UVD_CGC_GATE__LMI_MC_MASK |
UVD_CGC_GATE__IDCT_MASK |
UVD_CGC_GATE__MPRD_MASK |
UVD_CGC_GATE__MPC_MASK |
UVD_CGC_GATE__LBSI_MASK |
UVD_CGC_GATE__LRBBM_MASK |
UVD_CGC_GATE__UDEC_RE_MASK |
UVD_CGC_GATE__UDEC_CM_MASK |
UVD_CGC_GATE__UDEC_IT_MASK |
UVD_CGC_GATE__UDEC_DB_MASK |
UVD_CGC_GATE__UDEC_MP_MASK |
UVD_CGC_GATE__WCB_MASK |
UVD_CGC_GATE__VCPU_MASK |
UVD_CGC_GATE__SCPU_MASK |
UVD_CGC_GATE__JPEG_MASK |
UVD_CGC_GATE__JPEG2_MASK;
suvd_flags = UVD_SUVD_CGC_GATE__SRE_MASK |
UVD_SUVD_CGC_GATE__SIT_MASK |
UVD_SUVD_CGC_GATE__SMP_MASK |
UVD_SUVD_CGC_GATE__SCM_MASK |
UVD_SUVD_CGC_GATE__SDB_MASK;
data |= cgc_flags;
data1 |= suvd_flags;
WREG32(mmUVD_CGC_GATE, data);
WREG32(mmUVD_SUVD_CGC_GATE, data1);
}
#endif
static int uvd_v6_0_set_clockgating_state(void *handle,
enum amd_clockgating_state state)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
bool enable = (state == AMD_CG_STATE_GATE) ? true : false;
static int curstate = -1;
if (!(adev->cg_flags & AMD_CG_SUPPORT_UVD_MGCG))
return 0;
if (curstate == state)
return 0;
curstate = state;
if (enable) {
if (adev->flags & AMD_IS_APU)
cz_set_uvd_clock_gating_branches(adev, enable);
else
tonga_set_uvd_clock_gating_branches(adev, enable);
uvd_v6_0_set_uvd_dynamic_clock_mode(adev, true);
/* disable HW gating and enable Sw gating */
uvd_v6_0_set_sw_clock_gating(adev);
} else {
uint32_t data = RREG32(mmUVD_CGC_CTRL);
data &= ~UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK;
WREG32(mmUVD_CGC_CTRL, data);
/* wait for STATUS to clear */
if (uvd_v6_0_wait_for_idle(handle))
return -EBUSY;
/* enable HW gates because UVD is idle */
/* uvd_v6_0_set_hw_clock_gating(adev); */
}
return 0;