drm/amdgpu: access RLC_SPM_MC_CNTL through MMIO in SRIOV runtime

Register RLC_SPM_MC_CNTL is not blocked by L1 policy, VF can
directly access it through MMIO during SRIOV runtime.

v2: use SOC15 interface to access registers
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: ZhenGuo Yin <zhenguo.yin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c

@@ -7897,22 +7897,15 @@ static int gfx_v10_0_update_gfx_clock_gating(struct amdgpu_device *adev,
 static void gfx_v10_0_update_spm_vmid_internal(struct amdgpu_device *adev,
 					       unsigned int vmid)
 {
-	u32 reg, data;
+	u32 data;
 
 	/* not for *_SOC15 */
-	reg = SOC15_REG_OFFSET(GC, 0, mmRLC_SPM_MC_CNTL);
-	if (amdgpu_sriov_is_pp_one_vf(adev))
-		data = RREG32_NO_KIQ(reg);
-	else
-		data = RREG32_SOC15(GC, 0, mmRLC_SPM_MC_CNTL);
+	data = RREG32_SOC15_NO_KIQ(GC, 0, mmRLC_SPM_MC_CNTL);
 
 	data &= ~RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK;
 	data |= (vmid & RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK) << RLC_SPM_MC_CNTL__RLC_SPM_VMID__SHIFT;
 
-	if (amdgpu_sriov_is_pp_one_vf(adev))
-		WREG32_SOC15_NO_KIQ(GC, 0, mmRLC_SPM_MC_CNTL, data);
-	else
-		WREG32_SOC15(GC, 0, mmRLC_SPM_MC_CNTL, data);
+	WREG32_SOC15_NO_KIQ(GC, 0, mmRLC_SPM_MC_CNTL, data);
 }
 
 static void gfx_v10_0_update_spm_vmid(struct amdgpu_device *adev, unsigned int vmid)

drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c

@@ -4984,23 +4984,16 @@ static int gfx_v11_0_update_gfx_clock_gating(struct amdgpu_device *adev,
 
 static void gfx_v11_0_update_spm_vmid(struct amdgpu_device *adev, unsigned vmid)
 {
-	u32 reg, data;
+	u32 data;
 
 	amdgpu_gfx_off_ctrl(adev, false);
 
-	reg = SOC15_REG_OFFSET(GC, 0, regRLC_SPM_MC_CNTL);
-	if (amdgpu_sriov_is_pp_one_vf(adev))
-		data = RREG32_NO_KIQ(reg);
-	else
-		data = RREG32(reg);
+	data = RREG32_SOC15_NO_KIQ(GC, 0, regRLC_SPM_MC_CNTL);
 
 	data &= ~RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK;
 	data |= (vmid & RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK) << RLC_SPM_MC_CNTL__RLC_SPM_VMID__SHIFT;
 
-	if (amdgpu_sriov_is_pp_one_vf(adev))
-		WREG32_SOC15_NO_KIQ(GC, 0, regRLC_SPM_MC_CNTL, data);
-	else
-		WREG32_SOC15(GC, 0, regRLC_SPM_MC_CNTL, data);
+	WREG32_SOC15_NO_KIQ(GC, 0, regRLC_SPM_MC_CNTL, data);
 
 	amdgpu_gfx_off_ctrl(adev, true);
 }