[PATCH v2 1/2] drm/amd/pm: skip to load smu microcode on sriov for aldebaran

[Kevin Wang]

v1:
1. skip to load smu firmware in sriov mode for aldebaran chip
2. using vbios pptable if in sriov mode.

v2:
clean up smu driver code in sriov code path

Signed-off-by: Kevin Wang <kevin1.wang at amd.com>
---
 .../gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c    | 41 +++++++++++--------
 1 file changed, 25 insertions(+), 16 deletions(-)

diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c
index a421ba85bd6d..ebc081dc01cd 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c
@@ -85,6 +85,10 @@ int smu_v13_0_init_microcode(struct smu_context *smu)
 	const struct common_firmware_header *header;
 	struct amdgpu_firmware_info *ucode = NULL;
 
+	/* doesn't need to load smu firmware in IOV mode */
+	if (amdgpu_sriov_vf(adev))
+		return 0;
+
 	switch (adev->asic_type) {
 	case CHIP_ALDEBARAN:
 		chip_name = "aldebaran";
@@ -273,34 +277,38 @@ int smu_v13_0_setup_pptable(struct smu_context *smu)
 	struct amdgpu_device *adev = smu->adev;
 	const struct smc_firmware_header_v1_0 *hdr;
 	int ret, index;
-	uint32_t size = 0;
+	uint32_t size = 0, pp_table_id;
 	uint16_t atom_table_size;
 	uint8_t frev, crev;
 	void *table;
 	uint16_t version_major, version_minor;
 
+	if (!amdgpu_sriov_vf(adev)) {
+		if (amdgpu_smu_pptable_id >= 0) {
+			pp_table_id = amdgpu_smu_pptable_id;
+			dev_info(adev->dev, "override pptable id %d\n", pp_table_id);
+		} else {
+			pp_table_id = smu->smu_table.boot_values.pp_table_id;
+			dev_info(adev->dev, "use driver provided pptable %d\n", pp_table_id);
+		}
 
-	if (amdgpu_smu_pptable_id >= 0) {
-		smu->smu_table.boot_values.pp_table_id = amdgpu_smu_pptable_id;
-		dev_info(adev->dev, "override pptable id %d\n", amdgpu_smu_pptable_id);
-	}
+		hdr = (const struct smc_firmware_header_v1_0 *) adev->pm.fw->data;
+		version_major = le16_to_cpu(hdr->header.header_version_major);
+		version_minor = le16_to_cpu(hdr->header.header_version_minor);
+		if (version_major != 2) {
+			dev_err(adev->dev, "Unsupported smu firwmare version %d.%d\n",
+				 version_major, version_minor);
+			return -EINVAL;
+		}
 
-	hdr = (const struct smc_firmware_header_v1_0 *) adev->pm.fw->data;
-	version_major = le16_to_cpu(hdr->header.header_version_major);
-	version_minor = le16_to_cpu(hdr->header.header_version_minor);
-	if (version_major == 2 && smu->smu_table.boot_values.pp_table_id > 0) {
-		dev_info(adev->dev, "use driver provided pptable %d\n", smu->smu_table.boot_values.pp_table_id);
 		switch (version_minor) {
 		case 1:
-			ret = smu_v13_0_set_pptable_v2_1(smu, &table, &size,
-							 smu->smu_table.boot_values.pp_table_id);
+			ret = smu_v13_0_set_pptable_v2_1(smu, &table, &size, pp_table_id);
 			break;
 		default:
 			ret = -EINVAL;
 			break;
 		}
-		if (ret)
-			return ret;
 
 	} else {
 		dev_info(adev->dev, "use vbios provided pptable\n");
@@ -309,11 +317,12 @@ int smu_v13_0_setup_pptable(struct smu_context *smu)
 
 		ret = amdgpu_atombios_get_data_table(adev, index, &atom_table_size, &frev, &crev,
 						     (uint8_t **)&table);
-		if (ret)
-			return ret;
 		size = atom_table_size;
 	}
 
+	if (ret)
+		return ret;
+
 	if (!smu->smu_table.power_play_table)
 		smu->smu_table.power_play_table = table;
 	if (!smu->smu_table.power_play_table_size)
-- 
2.25.1