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drm/amdgpu: refine uvd 5.0 clock gate feature. 

1. fix uvd cg status not correct.
2. fix uvd pg can't work on tonga.
3. enable uvd mgcg.

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Tom St Denis <tom.stdenis@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Rex Zhu 2016-11-08 20:43:50 +08:00 committed by Alex Deucher
parent 68260f340e
commit 809a6a62b6
1 changed files with 83 additions and 23 deletions
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106
drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c
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@ -40,7 +40,10 @@ static void uvd_v5_0_set_ring_funcs(struct amdgpu_device *adev);
static void uvd_v5_0_set_irq_funcs(struct amdgpu_device *adev);
static int uvd_v5_0_start(struct amdgpu_device *adev);
static void uvd_v5_0_stop(struct amdgpu_device *adev);
static int uvd_v5_0_set_clockgating_state(void *handle,
enum amd_clockgating_state state);
static void uvd_v5_0_enable_mgcg(struct amdgpu_device *adev,
bool enable);
/**
* uvd_v5_0_ring_get_rptr - get read pointer
*
@ -149,9 +152,6 @@ static int uvd_v5_0_hw_init(void *handle)
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;
@ -189,11 +189,7 @@ static int uvd_v5_0_hw_init(void *handle)
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");
@ -226,6 +222,7 @@ static int uvd_v5_0_suspend(void *handle)
r = uvd_v5_0_hw_fini(adev);
if (r)
return r;
uvd_v5_0_set_clockgating_state(adev, AMD_CG_STATE_GATE);
r = amdgpu_uvd_suspend(adev);
if (r)
@ -313,8 +310,9 @@ static int uvd_v5_0_start(struct amdgpu_device *adev)
uvd_v5_0_mc_resume(adev);
/* disable clock gating */
WREG32(mmUVD_CGC_GATE, 0);
amdgpu_asic_set_uvd_clocks(adev, 10000, 10000);
uvd_v5_0_set_clockgating_state(adev, AMD_CG_STATE_UNGATE);
uvd_v5_0_enable_mgcg(adev, true);
/* disable interupt */
WREG32_P(mmUVD_MASTINT_EN, 0, ~(1 << 1));
@ -628,16 +626,12 @@ 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)
static void uvd_v5_0_enable_clock_gating(struct amdgpu_device *adev, bool enable)
{
uint32_t data, data1, data2, suvd_flags;
uint32_t data1, data3, 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);
data3 = RREG32(mmUVD_CGC_GATE);
suvd_flags = UVD_SUVD_CGC_GATE__SRE_MASK |
UVD_SUVD_CGC_GATE__SIT_MASK |
@ -645,6 +639,49 @@ static void uvd_v5_0_set_sw_clock_gating(struct amdgpu_device *adev)
UVD_SUVD_CGC_GATE__SCM_MASK |
UVD_SUVD_CGC_GATE__SDB_MASK;
if (enable) {
data3 |= (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__JPEG_MASK |
UVD_CGC_GATE__SCPU_MASK);
data3 &= ~UVD_CGC_GATE__REGS_MASK;
data1 |= suvd_flags;
} else {
data3 = 0;
data1 = 0;
}
WREG32(mmUVD_SUVD_CGC_GATE, data1);
WREG32(mmUVD_CGC_GATE, data3);
}
static void uvd_v5_0_set_sw_clock_gating(struct amdgpu_device *adev)
{
uint32_t data, data2;
data = RREG32(mmUVD_CGC_CTRL);
data2 = RREG32(mmUVD_SUVD_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));
@ -675,11 +712,8 @@ static void uvd_v5_0_set_sw_clock_gating(struct amdgpu_device *adev)
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);
}
@ -724,6 +758,31 @@ static void uvd_v5_0_set_hw_clock_gating(struct amdgpu_device *adev)
}
#endif
static void uvd_v5_0_enable_mgcg(struct amdgpu_device *adev,
bool enable)
{
u32 orig, data;
if (enable && (adev->cg_flags & AMD_CG_SUPPORT_UVD_MGCG)) {
data = RREG32_UVD_CTX(ixUVD_CGC_MEM_CTRL);
data |= 0xfff;
WREG32_UVD_CTX(ixUVD_CGC_MEM_CTRL, data);
orig = data = RREG32(mmUVD_CGC_CTRL);
data |= UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK;
if (orig != data)
WREG32(mmUVD_CGC_CTRL, data);
} else {
data = RREG32_UVD_CTX(ixUVD_CGC_MEM_CTRL);
data &= ~0xfff;
WREG32_UVD_CTX(ixUVD_CGC_MEM_CTRL, data);
orig = data = RREG32(mmUVD_CGC_CTRL);
data &= ~UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK;
if (orig != data)
WREG32(mmUVD_CGC_CTRL, data);
}
}
static int uvd_v5_0_set_clockgating_state(void *handle,
enum amd_clockgating_state state)
@ -740,17 +799,18 @@ static int uvd_v5_0_set_clockgating_state(void *handle,
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;
uvd_v5_0_enable_clock_gating(adev, true);
/* enable HW gates because UVD is idle */
/* uvd_v5_0_set_hw_clock_gating(adev); */
} else {
uvd_v5_0_enable_clock_gating(adev, false);
}
uvd_v5_0_set_sw_clock_gating(adev);
return 0;
}