cxl/core: Rename ->decoder_range ->hpa_range

In preparation for growing a ->dpa_range attribute for endpoint
decoders, rename the current ->decoder_range to the more descriptive
->hpa_range.
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Adam Manzanares <a.manzanares@samsung.com>
Link: https://lore.kernel.org/r/165603872867.551046.2170426227407458814.stgit@dwillia2-xfhSigned-off-by: Dan Williams <dan.j.williams@intel.com>

drivers/cxl/core/hdm.c

@@ -172,7 +172,7 @@ static int init_hdm_decoder(struct cxl_port *port, struct cxl_decoder *cxld,
 		return -ENXIO;
 	}
 
-	cxld->decoder_range = (struct range) {
+	cxld->hpa_range = (struct range) {
 		.start = base,
 		.end = base + size - 1,
 	};

drivers/cxl/core/port.c

@@ -78,7 +78,7 @@ static ssize_t start_show(struct device *dev, struct device_attribute *attr,
 	if (is_root_decoder(dev))
 		start = cxld->platform_res.start;
 	else
-		start = cxld->decoder_range.start;
+		start = cxld->hpa_range.start;
 
 	return sysfs_emit(buf, "%#llx\n", start);
 }
@@ -93,7 +93,7 @@ static ssize_t size_show(struct device *dev, struct device_attribute *attr,
 	if (is_root_decoder(dev))
 		size = resource_size(&cxld->platform_res);
 	else
-		size = range_len(&cxld->decoder_range);
+		size = range_len(&cxld->hpa_range);
 
 	return sysfs_emit(buf, "%#llx\n", size);
 }

drivers/cxl/cxl.h

@@ -198,7 +198,7 @@ enum cxl_decoder_type {
  * @dev: this decoder's device
  * @id: kernel device name id
  * @platform_res: address space resources considered by root decoder
- * @decoder_range: address space resources considered by midlevel decoder
+ * @hpa_range: Host physical address range mapped by this decoder
  * @interleave_ways: number of cxl_dports in this decode
  * @interleave_granularity: data stride per dport
  * @target_type: accelerator vs expander (type2 vs type3) selector
@@ -212,7 +212,7 @@ struct cxl_decoder {
 	int id;
 	union {
 		struct resource platform_res;
-		struct range decoder_range;
+		struct range hpa_range;
 	};
 	int interleave_ways;
 	int interleave_granularity;

tools/testing/cxl/test/cxl.c

@@ -461,7 +461,7 @@ static int mock_cxl_enumerate_decoders(struct cxl_hdm *cxlhdm)
 			return PTR_ERR(cxld);
 		}
 
-		cxld->decoder_range = (struct range) {
+		cxld->hpa_range = (struct range) {
 			.start = 0,
 			.end = -1,
 		};