drm/amdgpu: RAS xfer to read/write

Wrap amdgpu_ras_eeprom_xfer(..., bool write),
into amdgpu_ras_eeprom_read() and
amdgpu_ras_eeprom_write(), as that makes reading
and understanding the code clearer.

Cc: Jean Delvare <jdelvare@suse.de>
Cc: Alexander Deucher <Alexander.Deucher@amd.com>
Cc: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Cc: Lijo Lazar <Lijo.Lazar@amd.com>
Cc: Stanley Yang <Stanley.Yang@amd.com>
Cc: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Luben Tuikov <luben.tuikov@amd.com>
Acked-by: Alexander Deucher <Alexander.Deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c

@@ -1817,10 +1817,9 @@ int amdgpu_ras_save_bad_pages(struct amdgpu_device *adev)
 	save_count = data->count - control->num_recs;
 	/* only new entries are saved */
 	if (save_count > 0) {
-		if (amdgpu_ras_eeprom_xfer(control,
-					   &data->bps[control->num_recs],
-					   save_count,
-					   true)) {
+		if (amdgpu_ras_eeprom_write(control,
+					    &data->bps[control->num_recs],
+					    save_count)) {
 			dev_err(adev->dev, "Failed to save EEPROM table data!");
 			return -EIO;
 		}
@@ -1850,7 +1849,7 @@ static int amdgpu_ras_load_bad_pages(struct amdgpu_device *adev)
 	if (!bps)
 		return -ENOMEM;
 
-	if (amdgpu_ras_eeprom_xfer(control, bps, control->num_recs, false)) {
+	if (amdgpu_ras_eeprom_read(control, bps, control->num_recs)) {
 		dev_err(adev->dev, "Failed to load EEPROM table records!");
 		ret = -EIO;
 		goto out;

drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.c

@@ -432,9 +432,9 @@ bool amdgpu_ras_eeprom_check_err_threshold(struct amdgpu_device *adev)
 	return false;
 }
 
-int amdgpu_ras_eeprom_xfer(struct amdgpu_ras_eeprom_control *control,
-			   struct eeprom_table_record *records,
-			   const u32 num, bool write)
+static int amdgpu_ras_eeprom_xfer(struct amdgpu_ras_eeprom_control *control,
+				  struct eeprom_table_record *records,
+				  const u32 num, bool write)
 {
 	int i, ret = 0;
 	unsigned char *buffs, *buff;
@@ -554,6 +554,20 @@ int amdgpu_ras_eeprom_xfer(struct amdgpu_ras_eeprom_control *control,
 	return ret == num ? 0 : -EIO;
 }
 
+int amdgpu_ras_eeprom_read(struct amdgpu_ras_eeprom_control *control,
+			   struct eeprom_table_record *records,
+			   const u32 num)
+{
+	return amdgpu_ras_eeprom_xfer(control, records, num, false);
+}
+
+int amdgpu_ras_eeprom_write(struct amdgpu_ras_eeprom_control *control,
+			    struct eeprom_table_record *records,
+			    const u32 num)
+{
+	return amdgpu_ras_eeprom_xfer(control, records, num, true);
+}
+
 inline uint32_t amdgpu_ras_eeprom_get_record_max_length(void)
 {
 	return RAS_MAX_RECORD_NUM;
@@ -574,13 +588,13 @@ void amdgpu_ras_eeprom_test(struct amdgpu_ras_eeprom_control *control)
 		recs[i].retired_page = i;
 	}
 
-	if (!amdgpu_ras_eeprom_xfer(control, recs, 1, true)) {
+	if (!amdgpu_ras_eeprom_write(control, recs, 1)) {
 
 		memset(recs, 0, sizeof(*recs) * 1);
 
 		control->next_addr = RAS_RECORD_START;
 
-		if (!amdgpu_ras_eeprom_xfer(control, recs, 1, false)) {
+		if (!amdgpu_ras_eeprom_read(control, recs)) {
 			for (i = 0; i < 1; i++)
 				DRM_INFO("rec.address :0x%llx, rec.retired_page :%llu",
 					 recs[i].address, recs[i].retired_page);

drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.h

@@ -82,9 +82,11 @@ int amdgpu_ras_eeprom_reset_table(struct amdgpu_ras_eeprom_control *control);
 
 bool amdgpu_ras_eeprom_check_err_threshold(struct amdgpu_device *adev);
 
-int amdgpu_ras_eeprom_xfer(struct amdgpu_ras_eeprom_control *control,
-			   struct eeprom_table_record *records,
-			   const u32 num, bool write);
+int amdgpu_ras_eeprom_read(struct amdgpu_ras_eeprom_control *control,
+			   struct eeprom_table_record *records, const u32 num);
+
+int amdgpu_ras_eeprom_write(struct amdgpu_ras_eeprom_control *control,
+			    struct eeprom_table_record *records, const u32 num);
 
 inline uint32_t amdgpu_ras_eeprom_get_record_max_length(void);