drm/amdgpu: Use PSP to program IH_RB_CNTL_RING1/2 on SRIOV

This is similar to IH_RB_CNTL programming in
navi10_ih_toggle_ring_interrupts

Signed-off-by: Rohit Khaire <rohit.khaire@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Horace Chen <horace.chen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Author: Rohit Khaire

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

@@ -694,6 +694,8 @@ int psp_reg_program(struct psp_context *psp, enum psp_reg_prog_id reg,
 
 	psp_prep_reg_prog_cmd_buf(cmd, reg, value);
 	ret = psp_cmd_submit_buf(psp, NULL, cmd, psp->fence_buf_mc_addr);
+	if (ret)
+		DRM_ERROR("PSP failed to program reg id %d", reg);
 
 	kfree(cmd);
 	return ret;

drivers/gpu/drm/amd/amdgpu/navi10_ih.c

@@ -120,11 +120,23 @@ force_update_wptr_for_self_int(struct amdgpu_device *adev,
 	ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL_RING1,
 				   RB_USED_INT_THRESHOLD, threshold);
 
-	WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING1, ih_rb_cntl);
+	if (amdgpu_sriov_vf(adev) && amdgpu_sriov_reg_indirect_ih(adev)) {
+		if (psp_reg_program(&adev->psp, PSP_REG_IH_RB_CNTL_RING1, ih_rb_cntl))
+			return;
+	} else {
+		WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING1, ih_rb_cntl);
+	}
+
 	ih_rb_cntl = RREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING2);
 	ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL_RING2,
 				   RB_USED_INT_THRESHOLD, threshold);
-	WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING2, ih_rb_cntl);
+	if (amdgpu_sriov_vf(adev) && amdgpu_sriov_reg_indirect_ih(adev)) {
+		if (psp_reg_program(&adev->psp, PSP_REG_IH_RB_CNTL_RING2, ih_rb_cntl))
+			return;
+	} else {
+		WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING2, ih_rb_cntl);
+	}
+
 	WREG32_SOC15(OSSSYS, 0, mmIH_CNTL2, ih_cntl);
 }
 
@@ -153,10 +165,8 @@ static int navi10_ih_toggle_ring_interrupts(struct amdgpu_device *adev,
 		tmp = REG_SET_FIELD(tmp, IH_RB_CNTL, ENABLE_INTR, (enable ? 1 : 0));
 
 	if (amdgpu_sriov_vf(adev) && amdgpu_sriov_reg_indirect_ih(adev)) {
-		if (psp_reg_program(&adev->psp, ih_regs->psp_reg_id, tmp)) {
-			DRM_ERROR("PSP program IH_RB_CNTL failed!\n");
+		if (psp_reg_program(&adev->psp, ih_regs->psp_reg_id, tmp))
 			return -ETIMEDOUT;
-		}
 	} else {
 		WREG32(ih_regs->ih_rb_cntl, tmp);
 	}