From: Huang Rui <ray.huang@xxxxxxx>
Add sw controlled clockgating for VCN.
Signed-off-by: Huang Rui <ray.huang at amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang at amd.com>
Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c | 207 +++++++++++++++++++++++++++++++++-
1 file changed, 205 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
index 6f26a05..15a2c0f 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
@@ -281,6 +281,207 @@ static void vcn_v1_0_mc_resume(struct amdgpu_device *adev)
}
/**
+ * vcn_v1_0_disable_clock_gating - disable VCN clock gating
+ *
+ * @adev: amdgpu_device pointer
+ * @sw: enable SW clock gating
+ *
+ * Disable clock gating for VCN block
+ */
+static void vcn_v1_0_disable_clock_gating(struct amdgpu_device *adev, bool sw)
+{
+ uint32_t data;
+
+ /* JPEG disable CGC */
+ data = RREG32(SOC15_REG_OFFSET(VCN, 0, mmJPEG_CGC_CTRL));
+
+ if (sw)
+ data |= 1 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
+ else
+ data &= ~JPEG_CGC_CTRL__DYN_CLOCK_MODE_MASK;
+
+ data |= 1 << JPEG_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
+ data |= 4 << JPEG_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
+ WREG32(SOC15_REG_OFFSET(VCN, 0, mmJPEG_CGC_CTRL), data);
+
+ data = RREG32(SOC15_REG_OFFSET(VCN, 0, mmJPEG_CGC_GATE));
+ data &= ~(JPEG_CGC_GATE__JPEG_MASK | JPEG_CGC_GATE__JPEG2_MASK);
+ WREG32(SOC15_REG_OFFSET(VCN, 0, mmJPEG_CGC_GATE), data);
+
+ /* UVD disable CGC */
+ data = RREG32(SOC15_REG_OFFSET(VCN, 0, mmUVD_CGC_CTRL));
+ if (sw)
+ data |= 1 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
+ else
+ data &= ~ UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK;
+
+ data |= 1 << UVD_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
+ data |= 4 << UVD_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
+ WREG32(SOC15_REG_OFFSET(VCN, 0, mmUVD_CGC_CTRL), data);
+
+ data = RREG32(SOC15_REG_OFFSET(VCN, 0, mmUVD_CGC_GATE));
+ data &= ~(UVD_CGC_GATE__SYS_MASK
+ | UVD_CGC_GATE__UDEC_MASK
+ | UVD_CGC_GATE__MPEG2_MASK
+ | UVD_CGC_GATE__REGS_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);
+ WREG32(SOC15_REG_OFFSET(VCN, 0, mmUVD_CGC_GATE), data);
+
+ data = RREG32(SOC15_REG_OFFSET(VCN, 0, mmUVD_CGC_CTRL));
+ 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);
+ WREG32(SOC15_REG_OFFSET(VCN, 0, mmUVD_CGC_CTRL), data);
+
+ /* turn on */
+ data = RREG32(SOC15_REG_OFFSET(VCN, 0, mmUVD_SUVD_CGC_GATE));
+ data |= (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
+ | UVD_SUVD_CGC_GATE__SRE_H264_MASK
+ | UVD_SUVD_CGC_GATE__SRE_H264_MASK
+ | UVD_SUVD_CGC_GATE__SRE_HEVC_MASK
+ | UVD_SUVD_CGC_GATE__SIT_H264_MASK
+ | UVD_SUVD_CGC_GATE__SIT_HEVC_MASK
+ | UVD_SUVD_CGC_GATE__SCM_H264_MASK
+ | UVD_SUVD_CGC_GATE__SCM_HEVC_MASK
+ | UVD_SUVD_CGC_GATE__SDB_H264_MASK
+ | UVD_SUVD_CGC_GATE__SDB_HEVC_MASK
+ | UVD_SUVD_CGC_GATE__SCLR_MASK
+ | UVD_SUVD_CGC_GATE__UVD_SC_MASK
+ | UVD_SUVD_CGC_GATE__ENT_MASK
+ | UVD_SUVD_CGC_GATE__SIT_HEVC_DEC_MASK
+ | UVD_SUVD_CGC_GATE__SIT_HEVC_ENC_MASK
+ | UVD_SUVD_CGC_GATE__SITE_MASK
+ | UVD_SUVD_CGC_GATE__SRE_VP9_MASK
+ | UVD_SUVD_CGC_GATE__SCM_VP9_MASK
+ | UVD_SUVD_CGC_GATE__SIT_VP9_DEC_MASK
+ | UVD_SUVD_CGC_GATE__SDB_VP9_MASK
+ | UVD_SUVD_CGC_GATE__IME_HEVC_MASK);
+ WREG32(SOC15_REG_OFFSET(VCN, 0, mmUVD_SUVD_CGC_GATE), data);
+
+ data = RREG32(SOC15_REG_OFFSET(VCN, 0, mmUVD_SUVD_CGC_CTRL));
+ data &= ~(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
+ | UVD_SUVD_CGC_CTRL__SCLR_MODE_MASK
+ | UVD_SUVD_CGC_CTRL__UVD_SC_MODE_MASK
+ | UVD_SUVD_CGC_CTRL__ENT_MODE_MASK
+ | UVD_SUVD_CGC_CTRL__IME_MODE_MASK
+ | UVD_SUVD_CGC_CTRL__SITE_MODE_MASK);
+ WREG32(SOC15_REG_OFFSET(VCN, 0, mmUVD_SUVD_CGC_CTRL), data);
+}
+
+/**
+ * vcn_v1_0_enable_clock_gating - enable VCN clock gating
+ *
+ * @adev: amdgpu_device pointer
+ * @sw: enable SW clock gating
+ *
+ * Enable clock gating for VCN block
+ */
+static void vcn_v1_0_enable_clock_gating(struct amdgpu_device *adev, bool sw)
+{
+ uint32_t data = 0;
+
+ /* enable JPEG CGC */
+ data = RREG32(SOC15_REG_OFFSET(VCN, 0, mmJPEG_CGC_CTRL));
+ if (sw)
+ data |= 1 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
+ else
+ data |= 0 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
+ data |= 1 << JPEG_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
+ data |= 4 << JPEG_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
+ WREG32(SOC15_REG_OFFSET(VCN, 0, mmJPEG_CGC_CTRL), data);
+
+ data = RREG32(SOC15_REG_OFFSET(VCN, 0, mmJPEG_CGC_GATE));
+ data |= (JPEG_CGC_GATE__JPEG_MASK | JPEG_CGC_GATE__JPEG2_MASK);
+ WREG32(SOC15_REG_OFFSET(VCN, 0, mmJPEG_CGC_GATE), data);
+
+ /* enable UVD CGC */
+ data = RREG32(SOC15_REG_OFFSET(VCN, 0, mmUVD_CGC_CTRL));
+ if (sw)
+ data |= 1 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
+ else
+ data |= 0 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
+ data |= 1 << UVD_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
+ data |= 4 << UVD_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
+ WREG32(SOC15_REG_OFFSET(VCN, 0, mmUVD_CGC_CTRL), data);
+
+ data = RREG32(SOC15_REG_OFFSET(VCN, 0, mmUVD_CGC_CTRL));
+ 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);
+ WREG32(SOC15_REG_OFFSET(VCN, 0, mmUVD_CGC_CTRL), data);
+
+ data = RREG32(SOC15_REG_OFFSET(VCN, 0, mmUVD_SUVD_CGC_CTRL));
+ data |= (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
+ | UVD_SUVD_CGC_CTRL__SCLR_MODE_MASK
+ | UVD_SUVD_CGC_CTRL__UVD_SC_MODE_MASK
+ | UVD_SUVD_CGC_CTRL__ENT_MODE_MASK
+ | UVD_SUVD_CGC_CTRL__IME_MODE_MASK
+ | UVD_SUVD_CGC_CTRL__SITE_MODE_MASK);
+ WREG32(SOC15_REG_OFFSET(VCN, 0, mmUVD_SUVD_CGC_CTRL), data);
+}
+
+/**
* vcn_v1_0_start - start VCN block
*
* @adev: amdgpu_device pointer
@@ -300,8 +501,7 @@ static int vcn_v1_0_start(struct amdgpu_device *adev)
vcn_v1_0_mc_resume(adev);
/* disable clock gating */
- WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_CGC_CTRL), 0,
- ~UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK);
+ vcn_v1_0_disable_clock_gating(adev, false);
/* disable interupt */
WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_MASTINT_EN), 0,
@@ -481,6 +681,9 @@ static int vcn_v1_0_stop(struct amdgpu_device *adev)
WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_CTRL2), 0,
~UVD_LMI_CTRL2__STALL_ARB_UMC_MASK);
+ /* enable clock gating */
+ vcn_v1_0_enable_clock_gating(adev, false);
+
return 0;
}
--
2.5.5
