[PATCH 2/2] drm/amd/powerplay: unified VRAM address for driver table interaction with SMU

Evan Quan evan.quan at amd.com
Tue Dec 31 02:48:56 UTC 2019


By this, we can avoid to pass in the VRAM address on every table
transferring. That puts extra unnecessary traffics on SMU on
some cases(e.g. polling the amdgpu_pm_info sysfs interface).

Change-Id: Ifb74d9cd89790b301e88d472b29cdb9b0365b65a
Signed-off-by: Evan Quan <evan.quan at amd.com>
---
 drivers/gpu/drm/amd/powerplay/amdgpu_smu.c    | 98 ++++++++++++-------
 drivers/gpu/drm/amd/powerplay/arcturus_ppt.c  |  3 +-
 .../gpu/drm/amd/powerplay/inc/amdgpu_smu.h    |  2 +
 drivers/gpu/drm/amd/powerplay/inc/smu_v11_0.h |  2 +
 drivers/gpu/drm/amd/powerplay/inc/smu_v12_0.h |  2 +
 drivers/gpu/drm/amd/powerplay/navi10_ppt.c    |  1 +
 drivers/gpu/drm/amd/powerplay/renoir_ppt.c    |  1 +
 drivers/gpu/drm/amd/powerplay/smu_internal.h  |  2 +
 drivers/gpu/drm/amd/powerplay/smu_v11_0.c     | 18 ++++
 drivers/gpu/drm/amd/powerplay/smu_v12_0.c     | 26 +++--
 drivers/gpu/drm/amd/powerplay/vega20_ppt.c    |  1 +
 11 files changed, 109 insertions(+), 47 deletions(-)

diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
index 09e16183a769..290976f5f6c2 100644
--- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
@@ -490,26 +490,19 @@ int smu_update_table(struct smu_context *smu, enum smu_table_id table_index, int
 {
 	struct smu_table_context *smu_table = &smu->smu_table;
 	struct amdgpu_device *adev = smu->adev;
-	struct smu_table *table = NULL;
-	int ret = 0;
+	struct smu_table *table = &smu_table->driver_table;
 	int table_id = smu_table_get_index(smu, table_index);
+	uint32_t table_size;
+	int ret = 0;
 
 	if (!table_data || table_id >= SMU_TABLE_COUNT || table_id < 0)
 		return -EINVAL;
 
-	table = &smu_table->tables[table_index];
+	table_size = smu_table->tables[table_index].size;
 
 	if (drv2smu)
-		memcpy(table->cpu_addr, table_data, table->size);
+		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,
@@ -521,7 +514,7 @@ int smu_update_table(struct smu_context *smu, enum smu_table_id table_index, int
 	adev->nbio.funcs->hdp_flush(adev, NULL);
 
 	if (!drv2smu)
-		memcpy(table_data, table->cpu_addr, table->size);
+		memcpy(table_data, table->cpu_addr, table_size);
 
 	return ret;
 }
@@ -948,32 +941,56 @@ static int smu_init_fb_allocations(struct smu_context *smu)
 	struct amdgpu_device *adev = smu->adev;
 	struct smu_table_context *smu_table = &smu->smu_table;
 	struct smu_table *tables = smu_table->tables;
+	struct smu_table *driver_table = &(smu_table->driver_table);
+	uint32_t max_table_size = 0;
 	int ret, i;
 
-	for (i = 0; i < SMU_TABLE_COUNT; i++) {
-		if (tables[i].size == 0)
-			continue;
+	/* VRAM allocation for tool table */
+	if (tables[SMU_TABLE_PMSTATUSLOG].size) {
 		ret = amdgpu_bo_create_kernel(adev,
-					      tables[i].size,
-					      tables[i].align,
-					      tables[i].domain,
-					      &tables[i].bo,
-					      &tables[i].mc_address,
-					      &tables[i].cpu_addr);
-		if (ret)
-			goto failed;
+					      tables[SMU_TABLE_PMSTATUSLOG].size,
+					      tables[SMU_TABLE_PMSTATUSLOG].align,
+					      tables[SMU_TABLE_PMSTATUSLOG].domain,
+					      &tables[SMU_TABLE_PMSTATUSLOG].bo,
+					      &tables[SMU_TABLE_PMSTATUSLOG].mc_address,
+					      &tables[SMU_TABLE_PMSTATUSLOG].cpu_addr);
+		if (ret) {
+			pr_err("VRAM allocation for tool table failed!\n");
+			return ret;
+		}
 	}
 
-	return 0;
-failed:
-	while (--i >= 0) {
+	/* VRAM allocation for driver table */
+	for (i = 0; i < SMU_TABLE_COUNT; i++) {
 		if (tables[i].size == 0)
 			continue;
-		amdgpu_bo_free_kernel(&tables[i].bo,
-				      &tables[i].mc_address,
-				      &tables[i].cpu_addr);
 
+		if (i == SMU_TABLE_PMSTATUSLOG)
+			continue;
+
+		if (max_table_size < tables[i].size)
+			max_table_size = tables[i].size;
+	}
+
+	driver_table->size = max_table_size;
+	driver_table->align = PAGE_SIZE;
+	driver_table->domain = AMDGPU_GEM_DOMAIN_VRAM;
+
+	ret = amdgpu_bo_create_kernel(adev,
+				      driver_table->size,
+				      driver_table->align,
+				      driver_table->domain,
+				      &driver_table->bo,
+				      &driver_table->mc_address,
+				      &driver_table->cpu_addr);
+	if (ret) {
+		pr_err("VRAM allocation for driver table failed!\n");
+		if (tables[SMU_TABLE_PMSTATUSLOG].mc_address)
+			amdgpu_bo_free_kernel(&tables[SMU_TABLE_PMSTATUSLOG].bo,
+					      &tables[SMU_TABLE_PMSTATUSLOG].mc_address,
+					      &tables[SMU_TABLE_PMSTATUSLOG].cpu_addr);
 	}
+
 	return ret;
 }
 
@@ -981,18 +998,19 @@ static int smu_fini_fb_allocations(struct smu_context *smu)
 {
 	struct smu_table_context *smu_table = &smu->smu_table;
 	struct smu_table *tables = smu_table->tables;
-	uint32_t i = 0;
+	struct smu_table *driver_table = &(smu_table->driver_table);
 
 	if (!tables)
 		return 0;
 
-	for (i = 0; i < SMU_TABLE_COUNT; i++) {
-		if (tables[i].size == 0)
-			continue;
-		amdgpu_bo_free_kernel(&tables[i].bo,
-				      &tables[i].mc_address,
-				      &tables[i].cpu_addr);
-	}
+	if (tables[SMU_TABLE_PMSTATUSLOG].mc_address)
+		amdgpu_bo_free_kernel(&tables[SMU_TABLE_PMSTATUSLOG].bo,
+				      &tables[SMU_TABLE_PMSTATUSLOG].mc_address,
+				      &tables[SMU_TABLE_PMSTATUSLOG].cpu_addr);
+
+	amdgpu_bo_free_kernel(&driver_table->bo,
+			      &driver_table->mc_address,
+			      &driver_table->cpu_addr);
 
 	return 0;
 }
@@ -1063,6 +1081,10 @@ static int smu_smc_table_hw_init(struct smu_context *smu,
 
 	/* smu_dump_pptable(smu); */
 
+	ret = smu_set_driver_table_location(smu);
+	if (ret)
+		return ret;
+
 	/*
 	 * Copy pptable bo in the vram to smc with SMU MSGs such as
 	 * SetDriverDramAddr and TransferTableDram2Smu.
diff --git a/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c b/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
index 50b317f4b1e6..064b5201a8a7 100644
--- a/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
@@ -2022,7 +2022,7 @@ static int arcturus_i2c_eeprom_read_data(struct i2c_adapter *control,
 	SwI2cRequest_t req;
 	struct amdgpu_device *adev = to_amdgpu_device(control);
 	struct smu_table_context *smu_table = &adev->smu.smu_table;
-	struct smu_table *table = &smu_table->tables[SMU_TABLE_I2C_COMMANDS];
+	struct smu_table *table = &smu_table->driver_table;
 
 	memset(&req, 0, sizeof(req));
 	arcturus_fill_eeprom_i2c_req(&req, false, address, numbytes, data);
@@ -2261,6 +2261,7 @@ static const struct pptable_funcs arcturus_ppt_funcs = {
 	.check_fw_version = smu_v11_0_check_fw_version,
 	.write_pptable = smu_v11_0_write_pptable,
 	.set_min_dcef_deep_sleep = smu_v11_0_set_min_dcef_deep_sleep,
+	.set_driver_table_location = smu_v11_0_set_driver_table_location,
 	.set_tool_table_location = smu_v11_0_set_tool_table_location,
 	.notify_memory_pool_location = smu_v11_0_notify_memory_pool_location,
 	.system_features_control = smu_v11_0_system_features_control,
diff --git a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
index 30da8328d1bc..121bf81eced5 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
@@ -260,6 +260,7 @@ struct smu_table_context
 	struct smu_bios_boot_up_values	boot_values;
 	void                            *driver_pptable;
 	struct smu_table		*tables;
+	struct smu_table		driver_table;
 	struct smu_table		memory_pool;
 	uint8_t                         thermal_controller_type;
 
@@ -498,6 +499,7 @@ struct pptable_funcs {
 	int (*set_gfx_cgpg)(struct smu_context *smu, bool enable);
 	int (*write_pptable)(struct smu_context *smu);
 	int (*set_min_dcef_deep_sleep)(struct smu_context *smu);
+	int (*set_driver_table_location)(struct smu_context *smu);
 	int (*set_tool_table_location)(struct smu_context *smu);
 	int (*notify_memory_pool_location)(struct smu_context *smu);
 	int (*set_last_dcef_min_deep_sleep_clk)(struct smu_context *smu);
diff --git a/drivers/gpu/drm/amd/powerplay/inc/smu_v11_0.h b/drivers/gpu/drm/amd/powerplay/inc/smu_v11_0.h
index db3f78676aeb..662989296174 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/smu_v11_0.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/smu_v11_0.h
@@ -170,6 +170,8 @@ int smu_v11_0_write_pptable(struct smu_context *smu);
 
 int smu_v11_0_set_min_dcef_deep_sleep(struct smu_context *smu);
 
+int smu_v11_0_set_driver_table_location(struct smu_context *smu);
+
 int smu_v11_0_set_tool_table_location(struct smu_context *smu);
 
 int smu_v11_0_notify_memory_pool_location(struct smu_context *smu);
diff --git a/drivers/gpu/drm/amd/powerplay/inc/smu_v12_0.h b/drivers/gpu/drm/amd/powerplay/inc/smu_v12_0.h
index 3f1cd06e273c..d79e54b5ebf6 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/smu_v12_0.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/smu_v12_0.h
@@ -90,4 +90,6 @@ int smu_v12_0_mode2_reset(struct smu_context *smu);
 int smu_v12_0_set_soft_freq_limited_range(struct smu_context *smu, enum smu_clk_type clk_type,
 			    uint32_t min, uint32_t max);
 
+int smu_v12_0_set_driver_table_location(struct smu_context *smu);
+
 #endif
diff --git a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
index 3387f3243a01..aa206bde619b 100644
--- a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
@@ -2120,6 +2120,7 @@ static const struct pptable_funcs navi10_ppt_funcs = {
 	.check_fw_version = smu_v11_0_check_fw_version,
 	.write_pptable = smu_v11_0_write_pptable,
 	.set_min_dcef_deep_sleep = smu_v11_0_set_min_dcef_deep_sleep,
+	.set_driver_table_location = smu_v11_0_set_driver_table_location,
 	.set_tool_table_location = smu_v11_0_set_tool_table_location,
 	.notify_memory_pool_location = smu_v11_0_notify_memory_pool_location,
 	.system_features_control = smu_v11_0_system_features_control,
diff --git a/drivers/gpu/drm/amd/powerplay/renoir_ppt.c b/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
index 506cc6bf4bc0..861e6410363b 100644
--- a/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
@@ -920,6 +920,7 @@ static const struct pptable_funcs renoir_ppt_funcs = {
 	.get_dpm_ultimate_freq = smu_v12_0_get_dpm_ultimate_freq,
 	.mode2_reset = smu_v12_0_mode2_reset,
 	.set_soft_freq_limited_range = smu_v12_0_set_soft_freq_limited_range,
+	.set_driver_table_location = smu_v12_0_set_driver_table_location,
 };
 
 void renoir_set_ppt_funcs(struct smu_context *smu)
diff --git a/drivers/gpu/drm/amd/powerplay/smu_internal.h b/drivers/gpu/drm/amd/powerplay/smu_internal.h
index 77864e4236c4..783319ec8bf9 100644
--- a/drivers/gpu/drm/amd/powerplay/smu_internal.h
+++ b/drivers/gpu/drm/amd/powerplay/smu_internal.h
@@ -61,6 +61,8 @@
 	((smu)->ppt_funcs->write_pptable ? (smu)->ppt_funcs->write_pptable((smu)) : 0)
 #define smu_set_min_dcef_deep_sleep(smu) \
 	((smu)->ppt_funcs->set_min_dcef_deep_sleep ? (smu)->ppt_funcs->set_min_dcef_deep_sleep((smu)) : 0)
+#define smu_set_driver_table_location(smu) \
+	((smu)->ppt_funcs->set_driver_table_location ? (smu)->ppt_funcs->set_driver_table_location((smu)) : 0)
 #define smu_set_tool_table_location(smu) \
 	((smu)->ppt_funcs->set_tool_table_location ? (smu)->ppt_funcs->set_tool_table_location((smu)) : 0)
 #define smu_notify_memory_pool_location(smu) \
diff --git a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
index 6fb93eb6ab39..e804f9854027 100644
--- a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
+++ b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
@@ -776,6 +776,24 @@ int smu_v11_0_set_min_dcef_deep_sleep(struct smu_context *smu)
 	return smu_v11_0_set_deep_sleep_dcefclk(smu, table_context->boot_values.dcefclk / 100);
 }
 
+int smu_v11_0_set_driver_table_location(struct smu_context *smu)
+{
+	struct smu_table *driver_table = &smu->smu_table.driver_table;
+	int ret = 0;
+
+	if (driver_table->mc_address) {
+		ret = smu_send_smc_msg_with_param(smu,
+				SMU_MSG_SetDriverDramAddrHigh,
+				upper_32_bits(driver_table->mc_address));
+		if (!ret)
+			ret = smu_send_smc_msg_with_param(smu,
+				SMU_MSG_SetDriverDramAddrLow,
+				lower_32_bits(driver_table->mc_address));
+	}
+
+	return ret;
+}
+
 int smu_v11_0_set_tool_table_location(struct smu_context *smu)
 {
 	int ret = 0;
diff --git a/drivers/gpu/drm/amd/powerplay/smu_v12_0.c b/drivers/gpu/drm/amd/powerplay/smu_v12_0.c
index 2ac7f2f231b6..2b1ef9eb0db6 100644
--- a/drivers/gpu/drm/amd/powerplay/smu_v12_0.c
+++ b/drivers/gpu/drm/amd/powerplay/smu_v12_0.c
@@ -318,14 +318,6 @@ int smu_v12_0_fini_smc_tables(struct smu_context *smu)
 int smu_v12_0_populate_smc_tables(struct smu_context *smu)
 {
 	struct smu_table_context *smu_table = &smu->smu_table;
-	struct smu_table *table = NULL;
-
-	table = &smu_table->tables[SMU_TABLE_DPMCLOCKS];
-	if (!table)
-		return -EINVAL;
-
-	if (!table->cpu_addr)
-		return -EINVAL;
 
 	return smu_update_table(smu, SMU_TABLE_DPMCLOCKS, 0, smu_table->clocks_table, false);
 }
@@ -514,3 +506,21 @@ int smu_v12_0_set_soft_freq_limited_range(struct smu_context *smu, enum smu_clk_
 
 	return ret;
 }
+
+int smu_v12_0_set_driver_table_location(struct smu_context *smu)
+{
+	struct smu_table *driver_table = &smu->smu_table.driver_table;
+	int ret = 0;
+
+	if (driver_table->mc_address) {
+		ret = smu_send_smc_msg_with_param(smu,
+				SMU_MSG_SetDriverDramAddrHigh,
+				upper_32_bits(driver_table->mc_address));
+		if (!ret)
+			ret = smu_send_smc_msg_with_param(smu,
+				SMU_MSG_SetDriverDramAddrLow,
+				lower_32_bits(driver_table->mc_address));
+	}
+
+	return ret;
+}
diff --git a/drivers/gpu/drm/amd/powerplay/vega20_ppt.c b/drivers/gpu/drm/amd/powerplay/vega20_ppt.c
index 27bdcdeb08d9..38febd5ca4da 100644
--- a/drivers/gpu/drm/amd/powerplay/vega20_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/vega20_ppt.c
@@ -3236,6 +3236,7 @@ static const struct pptable_funcs vega20_ppt_funcs = {
 	.check_fw_version = smu_v11_0_check_fw_version,
 	.write_pptable = smu_v11_0_write_pptable,
 	.set_min_dcef_deep_sleep = smu_v11_0_set_min_dcef_deep_sleep,
+	.set_driver_table_location = smu_v11_0_set_driver_table_location,
 	.set_tool_table_location = smu_v11_0_set_tool_table_location,
 	.notify_memory_pool_location = smu_v11_0_notify_memory_pool_location,
 	.system_features_control = smu_v11_0_system_features_control,
-- 
2.24.0



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