amdgpu/pm: Replace smu12/13 usage of sprintf with sysfs_emit

 initial modification of files
  renoir_ppt.c
  aldebaran_ppt.c
  yellow_carp_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_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>

drivers/gpu/drm/amd/pm/swsmu/smu12/renoir_ppt.c

@@ -510,16 +510,16 @@ static int renoir_print_clk_levels(struct smu_context *smu,
 						0, &max);
 			if (ret)
 				return ret;
-			size += sprintf(buf + size, "OD_RANGE\nSCLK: %10uMhz %10uMhz\n", min, max);
+			size += sysfs_emit_at(buf, size, "OD_RANGE\nSCLK: %10uMhz %10uMhz\n", min, max);
 		}
 		break;
 	case SMU_OD_SCLK:
 		if (smu_dpm_ctx->dpm_level == AMD_DPM_FORCED_LEVEL_MANUAL) {
 			min = (smu->gfx_actual_hard_min_freq > 0) ? smu->gfx_actual_hard_min_freq : smu->gfx_default_hard_min_freq;
 			max = (smu->gfx_actual_soft_max_freq > 0) ? smu->gfx_actual_soft_max_freq : smu->gfx_default_soft_max_freq;
-			size += sprintf(buf + size, "OD_SCLK\n");
-			size += sprintf(buf + size, "0:%10uMhz\n", min);
-			size += sprintf(buf + size, "1:%10uMhz\n", max);
+			size += sysfs_emit_at(buf, size, "OD_SCLK\n");
+			size += sysfs_emit_at(buf, size, "0:%10uMhz\n", min);
+			size += sysfs_emit_at(buf, size, "1:%10uMhz\n", max);
 		}
 		break;
 	case SMU_GFXCLK:
@@ -536,12 +536,12 @@ static int renoir_print_clk_levels(struct smu_context *smu,
 			else
 				i = 1;
 
-			size += sprintf(buf + size, "0: %uMhz %s\n", min,
+			size += sysfs_emit_at(buf, size, "0: %uMhz %s\n", min,
 					i == 0 ? "*" : "");
-			size += sprintf(buf + size, "1: %uMhz %s\n",
+			size += sysfs_emit_at(buf, size, "1: %uMhz %s\n",
 					i == 1 ? cur_value : RENOIR_UMD_PSTATE_GFXCLK,
 					i == 1 ? "*" : "");
-			size += sprintf(buf + size, "2: %uMhz %s\n", max,
+			size += sysfs_emit_at(buf, size, "2: %uMhz %s\n", max,
 					i == 2 ? "*" : "");
 		}
 		return size;
@@ -588,14 +588,14 @@ static int renoir_print_clk_levels(struct smu_context *smu,
 				return ret;
 			if (!value)
 				continue;
-			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 ? "*" : "");
 			if (cur_value == value)
 				cur_value_match_level = true;
 		}
 
 		if (!cur_value_match_level)
-			size += sprintf(buf + size, "   %uMhz *\n", cur_value);
+			size += sysfs_emit_at(buf, size, "   %uMhz *\n", cur_value);
 
 		break;
 	default:
@@ -1118,7 +1118,7 @@ static int renoir_get_power_profile_mode(struct smu_context *smu,
 		if (workload_type < 0)
 			continue;
 
-		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) ? "*" : " ");
 	}
 

drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c

@@ -735,14 +735,14 @@ static int aldebaran_print_clk_levels(struct smu_context *smu,
 	uint32_t min_clk, max_clk;
 
 	if (amdgpu_ras_intr_triggered())
-		return snprintf(buf, PAGE_SIZE, "unavailable\n");
+		return sysfs_emit(buf, "unavailable\n");
 
 	dpm_context = smu_dpm->dpm_context;
 
 	switch (type) {
 
 	case SMU_OD_SCLK:
-		size = sprintf(buf, "%s:\n", "GFXCLK");
+		size = sysfs_emit(buf, "%s:\n", "GFXCLK");
 		fallthrough;
 	case SMU_SCLK:
 		ret = aldebaran_get_current_clk_freq_by_table(smu, SMU_GFXCLK, &now);
@@ -779,8 +779,7 @@ static int aldebaran_print_clk_levels(struct smu_context *smu,
 		 */
 		if (display_levels == clocks.num_levels) {
 			for (i = 0; i < clocks.num_levels; i++)
-				size += sprintf(
-					buf + size, "%d: %uMhz %s\n", i,
+				size += sysfs_emit_at(buf, size, "%d: %uMhz %s\n", i,
 					freq_values[i],
 					(clocks.num_levels == 1) ?
 						"*" :
@@ -790,14 +789,14 @@ static int aldebaran_print_clk_levels(struct smu_context *smu,
 							 ""));
 		} else {
 			for (i = 0; i < display_levels; i++)
-				size += sprintf(buf + size, "%d: %uMhz %s\n", i,
+				size += sysfs_emit_at(buf, size, "%d: %uMhz %s\n", i,
 						freq_values[i], i == 1 ? "*" : "");
 		}
 
 		break;
 
 	case SMU_OD_MCLK:
-		size = sprintf(buf, "%s:\n", "MCLK");
+		size = sysfs_emit(buf, "%s:\n", "MCLK");
 		fallthrough;
 	case SMU_MCLK:
 		ret = aldebaran_get_current_clk_freq_by_table(smu, SMU_UCLK, &now);
@@ -814,7 +813,7 @@ static int aldebaran_print_clk_levels(struct smu_context *smu,
 		}
 
 		for (i = 0; i < clocks.num_levels; i++)
-			size += sprintf(buf + size, "%d: %uMhz %s\n",
+			size += sysfs_emit_at(buf, size, "%d: %uMhz %s\n",
 					i, clocks.data[i].clocks_in_khz / 1000,
 					(clocks.num_levels == 1) ? "*" :
 					(aldebaran_freqs_in_same_level(
@@ -837,7 +836,7 @@ static int aldebaran_print_clk_levels(struct smu_context *smu,
 		}
 
 		for (i = 0; i < clocks.num_levels; i++)
-			size += sprintf(buf + size, "%d: %uMhz %s\n",
+			size += sysfs_emit_at(buf, size, "%d: %uMhz %s\n",
 					i, clocks.data[i].clocks_in_khz / 1000,
 					(clocks.num_levels == 1) ? "*" :
 					(aldebaran_freqs_in_same_level(
@@ -860,7 +859,7 @@ static int aldebaran_print_clk_levels(struct smu_context *smu,
 		}
 
 		for (i = 0; i < single_dpm_table->count; i++)
-			size += sprintf(buf + size, "%d: %uMhz %s\n",
+			size += sysfs_emit_at(buf, size, "%d: %uMhz %s\n",
 					i, single_dpm_table->dpm_levels[i].value,
 					(clocks.num_levels == 1) ? "*" :
 					(aldebaran_freqs_in_same_level(
@@ -883,7 +882,7 @@ static int aldebaran_print_clk_levels(struct smu_context *smu,
 		}
 
 		for (i = 0; i < single_dpm_table->count; i++)
-			size += sprintf(buf + size, "%d: %uMhz %s\n",
+			size += sysfs_emit_at(buf, size, "%d: %uMhz %s\n",
 					i, single_dpm_table->dpm_levels[i].value,
 					(clocks.num_levels == 1) ? "*" :
 					(aldebaran_freqs_in_same_level(
@@ -906,7 +905,7 @@ static int aldebaran_print_clk_levels(struct smu_context *smu,
 		}
 
 		for (i = 0; i < single_dpm_table->count; i++)
-			size += sprintf(buf + size, "%d: %uMhz %s\n",
+			size += sysfs_emit_at(buf, size, "%d: %uMhz %s\n",
 					i, single_dpm_table->dpm_levels[i].value,
 					(clocks.num_levels == 1) ? "*" :
 					(aldebaran_freqs_in_same_level(

drivers/gpu/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c

@@ -572,7 +572,7 @@ static int yellow_carp_get_power_profile_mode(struct smu_context *smu,
 		if (workload_type < 0)
 			continue;
 
-		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) ? "*" : " ");
 	}
 
@@ -1054,15 +1054,15 @@ static int yellow_carp_print_clk_levels(struct smu_context *smu,
 
 	switch (clk_type) {
 	case SMU_OD_SCLK:
-		size = sprintf(buf, "%s:\n", "OD_SCLK");
-		size += sprintf(buf + size, "0: %10uMhz\n",
+		size = sysfs_emit(buf, "%s:\n", "OD_SCLK");
+		size += sysfs_emit_at(buf, size, "0: %10uMhz\n",
 		(smu->gfx_actual_hard_min_freq > 0) ? smu->gfx_actual_hard_min_freq : smu->gfx_default_hard_min_freq);
-		size += sprintf(buf + size, "1: %10uMhz\n",
+		size += sysfs_emit_at(buf, size, "1: %10uMhz\n",
 		(smu->gfx_actual_soft_max_freq > 0) ? smu->gfx_actual_soft_max_freq : smu->gfx_default_soft_max_freq);
 		break;
 	case SMU_OD_RANGE:
-		size = sprintf(buf, "%s:\n", "OD_RANGE");
-		size += sprintf(buf + size, "SCLK: %7uMhz %10uMhz\n",
+		size = sysfs_emit(buf, "%s:\n", "OD_RANGE");
+		size += sysfs_emit_at(buf, size, "SCLK: %7uMhz %10uMhz\n",
 						smu->gfx_default_hard_min_freq, smu->gfx_default_soft_max_freq);
 		break;
 	case SMU_SOCCLK:
@@ -1083,7 +1083,7 @@ static int yellow_carp_print_clk_levels(struct smu_context *smu,
 			if (ret)
 				goto print_clk_out;
 
-			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 ? "*" : "");
 		}
 		break;