[PATCH 077/138] drm/amd/powerplay: implement smu update table function

[Huang Rui]

From: Kevin Wang <Kevin1.Wang at amd.com>

sometime, the driver need changed table data between driver and smu.
this function can help update table data

Signed-off-by: Kevin Wang <Kevin1.Wang at amd.com>
Reviewed-by: Huang Rui <ray.huang at amd.com>
---
 drivers/gpu/drm/amd/powerplay/amdgpu_smu.c     | 30 ++++++++++++++++++++++++++
 drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h |  2 ++
 2 files changed, 32 insertions(+)

diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
index 172b844..a6503b4 100644
--- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
@@ -29,6 +29,36 @@
 #include "smu_v11_0.h"
 #include "atom.h"
 
+int smu_update_table(struct smu_context *smu, uint32_t table_id, void *table_data, bool drv2smu)
+{
+	struct smu_table_context *smu_table = &smu->smu_table;
+	struct smu_table *table = NULL;
+	int ret = 0;
+
+	if (!table_data || table_id >= smu_table->table_count)
+		return -EINVAL;
+
+	table = &smu_table->tables[table_id];
+
+	if (drv2smu)
+		memcpy(table->cpu_addr, table_data, table->size);
+
+	ret = smu_send_smc_msg_with_param(smu, SMU_MSG_SetDriverDramAddrHigh, upper_32_bits(table->mc_address));
+	if (ret)
+		return ret;
+	ret = smu_send_smc_msg_with_param(smu, SMU_MSG_SetDriverDramAddrLow, lower_32_bits(table->mc_address));
+	if (ret)
+		return ret;
+	ret = smu_send_smc_msg_with_param(smu, drv2smu ? SMU_MSG_TransferTableDram2Smu : SMU_MSG_TransferTableSmu2Dram, table_id);
+	if (ret)
+		return ret;
+
+	if (!drv2smu)
+		memcpy(table_data, table->cpu_addr, table->size);
+
+	return ret;
+}
+
 int smu_feature_init_dpm(struct smu_context *smu)
 {
 	struct smu_feature *feature = &smu->smu_feature;
diff --git a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
index fe86a7f..2daf318 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
@@ -364,4 +364,6 @@ extern int smu_feature_set_enabled(struct smu_context *smu, int feature_id, bool
 extern int smu_feature_is_supported(struct smu_context *smu, int feature_id);
 extern int smu_feature_set_supported(struct smu_context *smu, int feature_id, bool enable);
 
+int smu_update_table(struct smu_context *smu, uint32_t table_id, void *table_data, bool drv2smu);
+
 #endif
-- 
2.7.4