drm/amdgpu/vcn:Remove SPG mode unused steps during vcn start

Remove Sitatic Power Gate mode unused steps during vcn start

Signed-off-by: James Zhu <James.Zhu@amd.com>
Acked-by: Leo Liu <leo.liu@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
index afb174f..93e2a40 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
@@ -784,24 +784,6 @@ static int vcn_v1_0_start_spg_mode(struct amdgpu_device *adev)
        WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_MASTINT_EN), 0,
                        ~UVD_MASTINT_EN__VCPU_EN_MASK);
 
-       /* 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,
-                       ~UVD_LMI_CTRL2__STALL_ARB_UMC_MASK);
-       mdelay(1);
-
-       /* put LMI, VCPU, RBC etc... into reset */
-       WREG32_SOC15(UVD, 0, mmUVD_SOFT_RESET,
-               UVD_SOFT_RESET__LMI_SOFT_RESET_MASK |
-               UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK |
-               UVD_SOFT_RESET__LBSI_SOFT_RESET_MASK |
-               UVD_SOFT_RESET__RBC_SOFT_RESET_MASK |
-               UVD_SOFT_RESET__CSM_SOFT_RESET_MASK |
-               UVD_SOFT_RESET__CXW_SOFT_RESET_MASK |
-               UVD_SOFT_RESET__TAP_SOFT_RESET_MASK |
-               UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK);
-       mdelay(5);
-
        /* initialize VCN memory controller */
        tmp = RREG32_SOC15(UVD, 0, mmUVD_LMI_CTRL);
        WREG32_SOC15(UVD, 0, mmUVD_LMI_CTRL, tmp                |
@@ -844,14 +826,8 @@ static int vcn_v1_0_start_spg_mode(struct amdgpu_device *adev)
        WREG32_SOC15(UVD, 0, mmUVD_RBC_XX_IB_REG_CHECK,
                RREG32_SOC15(UVD, 0, mmUVD_RBC_XX_IB_REG_CHECK) | 0x3);
 
-       /* take all subblocks out of reset, except VCPU */
-       WREG32_SOC15(UVD, 0, mmUVD_SOFT_RESET,
-                       UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
-       mdelay(5);
-
        /* enable VCPU clock */
-       WREG32_SOC15(UVD, 0, mmUVD_VCPU_CNTL,
-                       UVD_VCPU_CNTL__CLK_EN_MASK);
+       WREG32_SOC15(UVD, 0, mmUVD_VCPU_CNTL, UVD_VCPU_CNTL__CLK_EN_MASK);
 
        /* enable UMC */
        WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_CTRL2), 0,
@@ -891,8 +867,7 @@ static int vcn_v1_0_start_spg_mode(struct amdgpu_device *adev)
        }
        /* enable master interrupt */
        WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_MASTINT_EN),
-               (UVD_MASTINT_EN__VCPU_EN_MASK|UVD_MASTINT_EN__SYS_EN_MASK),
-               ~(UVD_MASTINT_EN__VCPU_EN_MASK|UVD_MASTINT_EN__SYS_EN_MASK));
+               UVD_MASTINT_EN__VCPU_EN_MASK, ~UVD_MASTINT_EN__VCPU_EN_MASK);
 
        /* enable system interrupt for JRBC, TODO: move to set interrupt*/
        WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SYS_INT_EN),
@@ -908,7 +883,6 @@ static int vcn_v1_0_start_spg_mode(struct amdgpu_device *adev)
        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(UVD, 0, mmUVD_RBC_RB_CNTL, tmp);