drm/amd/powerplay: enable pp one vf mode for vega10

Originally, due to the restriction from PSP and SMU, VF has
to send message to hypervisor driver to handle powerplay
change which is complicated and redundant. Currently, SMU
and PSP can support VF to directly handle powerplay
change by itself. Therefore, the old code about the handshake
between VF and PF to handle powerplay will be removed and VF
will use new the registers below to handshake with SMU.
mmMP1_SMN_C2PMSG_101: register to handle SMU message
mmMP1_SMN_C2PMSG_102: register to handle SMU parameter
mmMP1_SMN_C2PMSG_103: register to handle SMU response

v2: remove module parameter pp_one_vf
v3: fix the parens
v4: forbid vf to change smu feature
v5: use hwmon_attributes_visible to skip sepicified hwmon atrribute
v6: change skip condition at vega10_copy_table_to_smc

Signed-off-by: Yintian Tao <yttao@amd.com>
Acked-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 44 insertions, 12 deletions

diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/smu9_smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/smu9_smumgr.c
index 742b3dc1f6cb..adfbcbe5d113 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/smu9_smumgr.c
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/smu9_smumgr.c
@@ -61,15 +61,29 @@ static uint32_t smu9_wait_for_response(struct pp_hwmgr *hwmgr)
 	uint32_t reg;
 	uint32_t ret;
 
-	reg = SOC15_REG_OFFSET(MP1, 0, mmMP1_SMN_C2PMSG_90);
+	/* Due to the L1 policy problem under SRIOV, we have to use
+	 * mmMP1_SMN_C2PMSG_103 as the driver response register
+	 */
+	if (hwmgr->pp_one_vf) {
+		reg = SOC15_REG_OFFSET(MP1, 0, mmMP1_SMN_C2PMSG_103);
 
-	ret = phm_wait_for_register_unequal(hwmgr, reg,
-			0, MP1_C2PMSG_90__CONTENT_MASK);
+		ret = phm_wait_for_register_unequal(hwmgr, reg,
+				0, MP1_C2PMSG_103__CONTENT_MASK);
 
-	if (ret)
-		pr_err("No response from smu\n");
+		if (ret)
+			pr_err("No response from smu\n");
 
-	return RREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_90);
+		return RREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_103);
+	} else {
+		reg = SOC15_REG_OFFSET(MP1, 0, mmMP1_SMN_C2PMSG_90);
+
+		ret = phm_wait_for_register_unequal(hwmgr, reg,
+				0, MP1_C2PMSG_90__CONTENT_MASK);
+
+		if (ret)
+			pr_err("No response from smu\n");
+		return RREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_90);
+	}
 }
 
 /*
@@ -83,7 +97,11 @@ static int smu9_send_msg_to_smc_without_waiting(struct pp_hwmgr *hwmgr,
 {
 	struct amdgpu_device *adev = hwmgr->adev;
 
-	WREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_66, msg);
+	if (hwmgr->pp_one_vf) {
+		WREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_101, msg);
+	} else {
+		WREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_66, msg);
+	}
 
 	return 0;
 }
@@ -101,7 +119,10 @@ int smu9_send_msg_to_smc(struct pp_hwmgr *hwmgr, uint16_t msg)
 
 	smu9_wait_for_response(hwmgr);
 
-	WREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_90, 0);
+	if (hwmgr->pp_one_vf)
+		WREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_103, 0);
+	else
+		WREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_90, 0);
 
 	smu9_send_msg_to_smc_without_waiting(hwmgr, msg);
 
@@ -127,9 +148,17 @@ int smu9_send_msg_to_smc_with_parameter(struct pp_hwmgr *hwmgr,
 
 	smu9_wait_for_response(hwmgr);
 
-	WREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_90, 0);
-
-	WREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_82, parameter);
+	/* Due to the L1 policy problem under SRIOV, we have to use
+	 * mmMP1_SMN_C2PMSG_101 as the driver message register and
+	 * mmMP1_SMN_C2PMSG_102 as the driver parameter register.
+	 */
+	if (hwmgr->pp_one_vf) {
+		WREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_103, 0);
+		WREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_102, parameter);
+	} else {
+		WREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_90, 0);
+		WREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_82, parameter);
+	}
 
 	smu9_send_msg_to_smc_without_waiting(hwmgr, msg);
 
@@ -144,5 +173,8 @@ uint32_t smu9_get_argument(struct pp_hwmgr *hwmgr)
 {
 	struct amdgpu_device *adev = hwmgr->adev;
 
-	return RREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_82);
+	if (hwmgr->pp_one_vf)
+		return RREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_102);
+	else
+		return RREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_82);
 }