[PATCH 3/6] drm/amd/powerplay: Ignore smu buffer usage

[Xiangliang Yu]

SMU buffer is used for power feature, but for virtualization, the
power is controlled by hypervisor. Ignore it.

Signed-off-by: Xiangliang Yu <Xiangliang.Yu at amd.com>
Signed-off-by: Monk Liu <Monk.Liu at amd.com>
---
 drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c
index 877445d..f49b548 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c
@@ -407,8 +407,14 @@ int smu7_request_smu_load_fw(struct pp_smumgr *smumgr)
 					0x0);
 
 	if (smumgr->chip_id > CHIP_TOPAZ) { /* add support for Topaz */
-		smu7_send_msg_to_smc_with_parameter(smumgr, PPSMC_MSG_SMU_DRAM_ADDR_HI, smu_data->smu_buffer.mc_addr_high);
-		smu7_send_msg_to_smc_with_parameter(smumgr, PPSMC_MSG_SMU_DRAM_ADDR_LO, smu_data->smu_buffer.mc_addr_low);
+		if (!cgs_is_virtualization_enabled(smumgr->device)) {
+			smu7_send_msg_to_smc_with_parameter(smumgr,
+						PPSMC_MSG_SMU_DRAM_ADDR_HI,
+						smu_data->smu_buffer.mc_addr_high);
+			smu7_send_msg_to_smc_with_parameter(smumgr,
+						PPSMC_MSG_SMU_DRAM_ADDR_LO,
+						smu_data->smu_buffer.mc_addr_low);
+		}
 		fw_to_load = UCODE_ID_RLC_G_MASK
 			   + UCODE_ID_SDMA0_MASK
 			   + UCODE_ID_SDMA1_MASK
@@ -543,7 +549,6 @@ int smu7_init(struct pp_smumgr *smumgr)
 	smu_data = (struct smu7_smumgr *)(smumgr->backend);
 	smu_data->header_buffer.data_size =
 			((sizeof(struct SMU_DRAMData_TOC) / 4096) + 1) * 4096;
-	smu_data->smu_buffer.data_size = 200*4096;
 
 /* Allocate FW image data structure and header buffer and
  * send the header buffer address to SMU */
@@ -566,6 +571,10 @@ int smu7_init(struct pp_smumgr *smumgr)
 		(cgs_handle_t)smu_data->header_buffer.handle);
 		return -EINVAL);
 
+	if (cgs_is_virtualization_enabled(smumgr->device))
+		return 0;
+
+	smu_data->smu_buffer.data_size = 200*4096;
 	smu_allocate_memory(smumgr->device,
 		smu_data->smu_buffer.data_size,
 		CGS_GPU_MEM_TYPE__VISIBLE_CONTIG_FB,
-- 
2.7.4