amdgpu/pm: Replace navi10 usage of sprintf with sysfs_emit

 initial modification of files
  smu_cmn.c
  navi10_ppt.c

=== Test ===
AMDGPU_PCI_ADDR=`lspci -nn | grep "VGA\|Display" | cut -d " " -f 1`
AMDGPU_HWMON=`ls -la /sys/class/hwmon | grep $AMDGPU_PCI_ADDR | awk '{print $9}'`
HWMON_DIR=/sys/class/hwmon/${AMDGPU_HWMON}
LOGFILE=pp_printf.test.log

lspci -nn | grep "VGA\|Display"  > $LOGFILE
FILES="pp_dpm_sclk
pp_sclk_od
pp_mclk_od
pp_dpm_pcie
pp_od_clk_voltage
pp_power_profile_mode "

for f in $FILES
do
  echo === $f === >> $LOGFILE
  cat $HWMON_DIR/device/$f >> $LOGFILE
done
cat $LOGFILE

Signed-off-by: Darren Powell <darren.powell@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 32 insertions, 29 deletions

diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
index d7722c229ddd..2e5d3669652b 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
@@ -1303,7 +1303,7 @@ static int navi10_print_clk_levels(struct smu_context *smu,
 				if (ret)
 					return size;
 
-				size += sprintf(buf + size, "%d: %uMhz %s\n", i, value,
+				size += sysfs_emit_at(buf, size, "%d: %uMhz %s\n", i, value,
 						cur_value == value ? "*" : "");
 			}
 		} else {
@@ -1321,7 +1321,7 @@ static int navi10_print_clk_levels(struct smu_context *smu,
 				freq_values[1] = (freq_values[0] + freq_values[2]) / 2;
 
 			for (i = 0; i < 3; i++) {
-				size += sprintf(buf + size, "%d: %uMhz %s\n", i, freq_values[i],
+				size += sysfs_emit_at(buf, size, "%d: %uMhz %s\n", i, freq_values[i],
 						i == mark_index ? "*" : "");
 			}
 
@@ -1331,7 +1331,7 @@ static int navi10_print_clk_levels(struct smu_context *smu,
 		gen_speed = smu_v11_0_get_current_pcie_link_speed_level(smu);
 		lane_width = smu_v11_0_get_current_pcie_link_width_level(smu);
 		for (i = 0; i < NUM_LINK_LEVELS; i++)
-			size += sprintf(buf + size, "%d: %s %s %dMhz %s\n", i,
+			size += sysfs_emit_at(buf, size, "%d: %s %s %dMhz %s\n", i,
 					(dpm_context->dpm_tables.pcie_table.pcie_gen[i] == 0) ? "2.5GT/s," :
 					(dpm_context->dpm_tables.pcie_table.pcie_gen[i] == 1) ? "5.0GT/s," :
 					(dpm_context->dpm_tables.pcie_table.pcie_gen[i] == 2) ? "8.0GT/s," :
@@ -1352,23 +1352,24 @@ static int navi10_print_clk_levels(struct smu_context *smu,
 			break;
 		if (!navi10_od_feature_is_supported(od_settings, SMU_11_0_ODCAP_GFXCLK_LIMITS))
 			break;
-		size += sprintf(buf + size, "OD_SCLK:\n");
-		size += sprintf(buf + size, "0: %uMhz\n1: %uMhz\n", od_table->GfxclkFmin, od_table->GfxclkFmax);
+		size += sysfs_emit_at(buf, size, "OD_SCLK:\n");
+		size += sysfs_emit_at(buf, size, "0: %uMhz\n1: %uMhz\n",
+				      od_table->GfxclkFmin, od_table->GfxclkFmax);
 		break;
 	case SMU_OD_MCLK:
 		if (!smu->od_enabled || !od_table || !od_settings)
 			break;
 		if (!navi10_od_feature_is_supported(od_settings, SMU_11_0_ODCAP_UCLK_MAX))
 			break;
-		size += sprintf(buf + size, "OD_MCLK:\n");
-		size += sprintf(buf + size, "1: %uMHz\n", od_table->UclkFmax);
+		size += sysfs_emit_at(buf, size, "OD_MCLK:\n");
+		size += sysfs_emit_at(buf, size, "1: %uMHz\n", od_table->UclkFmax);
 		break;
 	case SMU_OD_VDDC_CURVE:
 		if (!smu->od_enabled || !od_table || !od_settings)
 			break;
 		if (!navi10_od_feature_is_supported(od_settings, SMU_11_0_ODCAP_GFXCLK_CURVE))
 			break;
-		size += sprintf(buf + size, "OD_VDDC_CURVE:\n");
+		size += sysfs_emit_at(buf, size, "OD_VDDC_CURVE:\n");
 		for (i = 0; i < 3; i++) {
 			switch (i) {
 			case 0:
@@ -1383,55 +1384,57 @@ static int navi10_print_clk_levels(struct smu_context *smu,
 			default:
 				break;
 			}
-			size += sprintf(buf + size, "%d: %uMHz %umV\n", i, curve_settings[0], curve_settings[1] / NAVI10_VOLTAGE_SCALE);
+			size += sysfs_emit_at(buf, size, "%d: %uMHz %umV\n",
+					      i, curve_settings[0],
+					curve_settings[1] / NAVI10_VOLTAGE_SCALE);
 		}
 		break;
 	case SMU_OD_RANGE:
 		if (!smu->od_enabled || !od_table || !od_settings)
 			break;
-		size = sprintf(buf, "%s:\n", "OD_RANGE");
+		size = sysfs_emit(buf, "%s:\n", "OD_RANGE");
 
 		if (navi10_od_feature_is_supported(od_settings, SMU_11_0_ODCAP_GFXCLK_LIMITS)) {
 			navi10_od_setting_get_range(od_settings, SMU_11_0_ODSETTING_GFXCLKFMIN,
 						    &min_value, NULL);
 			navi10_od_setting_get_range(od_settings, SMU_11_0_ODSETTING_GFXCLKFMAX,
 						    NULL, &max_value);
-			size += sprintf(buf + size, "SCLK: %7uMhz %10uMhz\n",
+			size += sysfs_emit_at(buf, size, "SCLK: %7uMhz %10uMhz\n",
 					min_value, max_value);
 		}
 
 		if (navi10_od_feature_is_supported(od_settings, SMU_11_0_ODCAP_UCLK_MAX)) {
 			navi10_od_setting_get_range(od_settings, SMU_11_0_ODSETTING_UCLKFMAX,
 						    &min_value, &max_value);
-			size += sprintf(buf + size, "MCLK: %7uMhz %10uMhz\n",
+			size += sysfs_emit_at(buf, size, "MCLK: %7uMhz %10uMhz\n",
 					min_value, max_value);
 		}
 
 		if (navi10_od_feature_is_supported(od_settings, SMU_11_0_ODCAP_GFXCLK_CURVE)) {
 			navi10_od_setting_get_range(od_settings, SMU_11_0_ODSETTING_VDDGFXCURVEFREQ_P1,
 						    &min_value, &max_value);
-			size += sprintf(buf + size, "VDDC_CURVE_SCLK[0]: %7uMhz %10uMhz\n",
-					min_value, max_value);
+			size += sysfs_emit_at(buf, size, "VDDC_CURVE_SCLK[0]: %7uMhz %10uMhz\n",
+					      min_value, max_value);
 			navi10_od_setting_get_range(od_settings, SMU_11_0_ODSETTING_VDDGFXCURVEVOLTAGE_P1,
 						    &min_value, &max_value);
-			size += sprintf(buf + size, "VDDC_CURVE_VOLT[0]: %7dmV %11dmV\n",
-					min_value, max_value);
+			size += sysfs_emit_at(buf, size, "VDDC_CURVE_VOLT[0]: %7dmV %11dmV\n",
+					      min_value, max_value);
 			navi10_od_setting_get_range(od_settings, SMU_11_0_ODSETTING_VDDGFXCURVEFREQ_P2,
 						    &min_value, &max_value);
-			size += sprintf(buf + size, "VDDC_CURVE_SCLK[1]: %7uMhz %10uMhz\n",
-					min_value, max_value);
+			size += sysfs_emit_at(buf, size, "VDDC_CURVE_SCLK[1]: %7uMhz %10uMhz\n",
+					      min_value, max_value);
 			navi10_od_setting_get_range(od_settings, SMU_11_0_ODSETTING_VDDGFXCURVEVOLTAGE_P2,
 						    &min_value, &max_value);
-			size += sprintf(buf + size, "VDDC_CURVE_VOLT[1]: %7dmV %11dmV\n",
-					min_value, max_value);
+			size += sysfs_emit_at(buf, size, "VDDC_CURVE_VOLT[1]: %7dmV %11dmV\n",
+					      min_value, max_value);
 			navi10_od_setting_get_range(od_settings, SMU_11_0_ODSETTING_VDDGFXCURVEFREQ_P3,
 						    &min_value, &max_value);
-			size += sprintf(buf + size, "VDDC_CURVE_SCLK[2]: %7uMhz %10uMhz\n",
-					min_value, max_value);
+			size += sysfs_emit_at(buf, size, "VDDC_CURVE_SCLK[2]: %7uMhz %10uMhz\n",
+					      min_value, max_value);
 			navi10_od_setting_get_range(od_settings, SMU_11_0_ODSETTING_VDDGFXCURVEVOLTAGE_P3,
 						    &min_value, &max_value);
-			size += sprintf(buf + size, "VDDC_CURVE_VOLT[2]: %7dmV %11dmV\n",
-					min_value, max_value);
+			size += sysfs_emit_at(buf, size, "VDDC_CURVE_VOLT[2]: %7dmV %11dmV\n",
+					      min_value, max_value);
 		}
 
 		break;
@@ -1730,7 +1733,7 @@ static int navi10_get_power_profile_mode(struct smu_context *smu, char *buf)
 	if (!buf)
 		return -EINVAL;
 
-	size += sprintf(buf + size, "%16s %s %s %s %s %s %s %s %s %s %s\n",
+	size += sysfs_emit_at(buf, size, "%16s %s %s %s %s %s %s %s %s %s %s\n",
 			title[0], title[1], title[2], title[3], title[4], title[5],
 			title[6], title[7], title[8], title[9], title[10]);
 
@@ -1750,10 +1753,10 @@ static int navi10_get_power_profile_mode(struct smu_context *smu, char *buf)
 			return result;
 		}
 
-		size += sprintf(buf + size, "%2d %14s%s:\n",
+		size += sysfs_emit_at(buf, size, "%2d %14s%s:\n",
 			i, profile_name[i], (i == smu->power_profile_mode) ? "*" : " ");
 
-		size += sprintf(buf + size, "%19s %d(%13s) %7d %7d %7d %7d %7d %7d %7d %7d %7d\n",
+		size += sysfs_emit_at(buf, size, "%19s %d(%13s) %7d %7d %7d %7d %7d %7d %7d %7d %7d\n",
 			" ",
 			0,
 			"GFXCLK",
@@ -1767,7 +1770,7 @@ static int navi10_get_power_profile_mode(struct smu_context *smu, char *buf)
 			activity_monitor.Gfx_PD_Data_error_coeff,
 			activity_monitor.Gfx_PD_Data_error_rate_coeff);
 
-		size += sprintf(buf + size, "%19s %d(%13s) %7d %7d %7d %7d %7d %7d %7d %7d %7d\n",
+		size += sysfs_emit_at(buf, size, "%19s %d(%13s) %7d %7d %7d %7d %7d %7d %7d %7d %7d\n",
 			" ",
 			1,
 			"SOCCLK",
@@ -1781,7 +1784,7 @@ static int navi10_get_power_profile_mode(struct smu_context *smu, char *buf)
 			activity_monitor.Soc_PD_Data_error_coeff,
 			activity_monitor.Soc_PD_Data_error_rate_coeff);
 
-		size += sprintf(buf + size, "%19s %d(%13s) %7d %7d %7d %7d %7d %7d %7d %7d %7d\n",
+		size += sysfs_emit_at(buf, size, "%19s %d(%13s) %7d %7d %7d %7d %7d %7d %7d %7d %7d\n",
 			" ",
 			2,
 			"MEMLK",