[PATCH v3 01/10] cxl/pci: Convert register block identifiers to an enum

From: Dan Williams <dan.j.williams@intel.com>
To: linux-cxl@vger.kernel.org
Cc: Ben Widawsky <ben.widawsky@intel.com>,
	linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
	hch@lst.de
Subject: [PATCH v3 01/10] cxl/pci: Convert register block identifiers to an enum
Date: Sat, 09 Oct 2021 09:44:02 -0700	[thread overview]
Message-ID: <163379784199.692348.4366131432595112771.stgit@dwillia2-desk3.amr.corp.intel.com> (raw)
In-Reply-To: <163379783658.692348.16064992154261275220.stgit@dwillia2-desk3.amr.corp.intel.com>

From: Ben Widawsky <ben.widawsky@intel.com>

In preparation for passing around the Register Block Indicator (RBI) as
a parameter, it is desirable to convert the type to an enum so that the
interface can use a well defined parameter.

Signed-off-by: Ben Widawsky <ben.widawsky@intel.com>
[djbw: changelog fixups ]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 drivers/cxl/pci.h |   14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/cxl/pci.h b/drivers/cxl/pci.h
index 8c1a58813816..7d3e4bf06b45 100644
--- a/drivers/cxl/pci.h
+++ b/drivers/cxl/pci.h
@@ -20,13 +20,15 @@
 #define CXL_REGLOC_BIR_MASK GENMASK(2, 0)
 
 /* Register Block Identifier (RBI) */
-#define CXL_REGLOC_RBI_MASK GENMASK(15, 8)
-#define CXL_REGLOC_RBI_EMPTY 0
-#define CXL_REGLOC_RBI_COMPONENT 1
-#define CXL_REGLOC_RBI_VIRT 2
-#define CXL_REGLOC_RBI_MEMDEV 3
-#define CXL_REGLOC_RBI_TYPES CXL_REGLOC_RBI_MEMDEV + 1
+enum cxl_regloc_type {
+	CXL_REGLOC_RBI_EMPTY = 0,
+	CXL_REGLOC_RBI_COMPONENT,
+	CXL_REGLOC_RBI_VIRT,
+	CXL_REGLOC_RBI_MEMDEV,
+	CXL_REGLOC_RBI_TYPES
+};
 
+#define CXL_REGLOC_RBI_MASK GENMASK(15, 8)
 #define CXL_REGLOC_ADDR_MASK GENMASK(31, 16)
 
 #endif /* __CXL_PCI_H__ */

